[FFmpeg-cvslog] r11219 - in trunk/libavcodec: h264.c rectangle.h
kostya
subversion
Sat Dec 15 07:06:16 CET 2007
Author: kostya
Date: Sat Dec 15 07:06:16 2007
New Revision: 11219
Log:
Make fill_rectangle() available for other decoders
Added:
trunk/libavcodec/rectangle.h
- copied, changed from r11218, /trunk/libavcodec/h264.c
Modified:
trunk/libavcodec/h264.c
Modified: trunk/libavcodec/h264.c
==============================================================================
--- trunk/libavcodec/h264.c (original)
+++ trunk/libavcodec/h264.c Sat Dec 15 07:06:16 2007
@@ -32,6 +32,7 @@
#include "h264data.h"
#include "h264_parser.h"
#include "golomb.h"
+#include "rectangle.h"
#include "cabac.h"
@@ -75,94 +76,6 @@ const uint8_t ff_div6[52]={
};
-/**
- * fill a rectangle.
- * @param h height of the rectangle, should be a constant
- * @param w width of the rectangle, should be a constant
- * @param size the size of val (1 or 4), should be a constant
- */
-static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){
- uint8_t *p= (uint8_t*)vp;
- assert(size==1 || size==4);
- assert(w<=4);
-
- w *= size;
- stride *= size;
-
- assert((((long)vp)&(FFMIN(w, STRIDE_ALIGN)-1)) == 0);
- assert((stride&(w-1))==0);
- if(w==2){
- const uint16_t v= size==4 ? val : val*0x0101;
- *(uint16_t*)(p + 0*stride)= v;
- if(h==1) return;
- *(uint16_t*)(p + 1*stride)= v;
- if(h==2) return;
- *(uint16_t*)(p + 2*stride)= v;
- *(uint16_t*)(p + 3*stride)= v;
- }else if(w==4){
- const uint32_t v= size==4 ? val : val*0x01010101;
- *(uint32_t*)(p + 0*stride)= v;
- if(h==1) return;
- *(uint32_t*)(p + 1*stride)= v;
- if(h==2) return;
- *(uint32_t*)(p + 2*stride)= v;
- *(uint32_t*)(p + 3*stride)= v;
- }else if(w==8){
- //gcc can't optimize 64bit math on x86_32
-#if defined(ARCH_X86_64) || (defined(MP_WORDSIZE) && MP_WORDSIZE >= 64)
- const uint64_t v= val*0x0100000001ULL;
- *(uint64_t*)(p + 0*stride)= v;
- if(h==1) return;
- *(uint64_t*)(p + 1*stride)= v;
- if(h==2) return;
- *(uint64_t*)(p + 2*stride)= v;
- *(uint64_t*)(p + 3*stride)= v;
- }else if(w==16){
- const uint64_t v= val*0x0100000001ULL;
- *(uint64_t*)(p + 0+0*stride)= v;
- *(uint64_t*)(p + 8+0*stride)= v;
- *(uint64_t*)(p + 0+1*stride)= v;
- *(uint64_t*)(p + 8+1*stride)= v;
- if(h==2) return;
- *(uint64_t*)(p + 0+2*stride)= v;
- *(uint64_t*)(p + 8+2*stride)= v;
- *(uint64_t*)(p + 0+3*stride)= v;
- *(uint64_t*)(p + 8+3*stride)= v;
-#else
- *(uint32_t*)(p + 0+0*stride)= val;
- *(uint32_t*)(p + 4+0*stride)= val;
- if(h==1) return;
- *(uint32_t*)(p + 0+1*stride)= val;
- *(uint32_t*)(p + 4+1*stride)= val;
- if(h==2) return;
- *(uint32_t*)(p + 0+2*stride)= val;
- *(uint32_t*)(p + 4+2*stride)= val;
- *(uint32_t*)(p + 0+3*stride)= val;
- *(uint32_t*)(p + 4+3*stride)= val;
- }else if(w==16){
- *(uint32_t*)(p + 0+0*stride)= val;
- *(uint32_t*)(p + 4+0*stride)= val;
- *(uint32_t*)(p + 8+0*stride)= val;
- *(uint32_t*)(p +12+0*stride)= val;
- *(uint32_t*)(p + 0+1*stride)= val;
- *(uint32_t*)(p + 4+1*stride)= val;
- *(uint32_t*)(p + 8+1*stride)= val;
- *(uint32_t*)(p +12+1*stride)= val;
- if(h==2) return;
- *(uint32_t*)(p + 0+2*stride)= val;
- *(uint32_t*)(p + 4+2*stride)= val;
- *(uint32_t*)(p + 8+2*stride)= val;
- *(uint32_t*)(p +12+2*stride)= val;
- *(uint32_t*)(p + 0+3*stride)= val;
- *(uint32_t*)(p + 4+3*stride)= val;
- *(uint32_t*)(p + 8+3*stride)= val;
- *(uint32_t*)(p +12+3*stride)= val;
-#endif
- }else
- assert(0);
- assert(h==4);
-}
-
static void fill_caches(H264Context *h, int mb_type, int for_deblock){
MpegEncContext * const s = &h->s;
const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
Copied: trunk/libavcodec/rectangle.h (from r11218, /trunk/libavcodec/h264.c)
==============================================================================
--- /trunk/libavcodec/h264.c (original)
+++ trunk/libavcodec/rectangle.h Sat Dec 15 07:06:16 2007
@@ -1,5 +1,5 @@
/*
- * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
+ * rectangle filling function
* Copyright (c) 2003 Michael Niedermayer <michaelni at gmx.at>
*
* This file is part of FFmpeg.
@@ -20,60 +20,15 @@
*/
/**
- * @file h264.c
- * H.264 / AVC / MPEG4 part10 codec.
+ * @file rectangle.h
+ * useful rectangle filling function
* @author Michael Niedermayer <michaelni at gmx.at>
*/
-#include "dsputil.h"
-#include "avcodec.h"
-#include "mpegvideo.h"
-#include "h264.h"
-#include "h264data.h"
-#include "h264_parser.h"
-#include "golomb.h"
-
-#include "cabac.h"
-
-//#undef NDEBUG
-#include <assert.h>
-
-/**
- * Value of Picture.reference when Picture is not a reference picture, but
- * is held for delayed output.
- */
-#define DELAYED_PIC_REF 4
-
-static VLC coeff_token_vlc[4];
-static VLC chroma_dc_coeff_token_vlc;
-
-static VLC total_zeros_vlc[15];
-static VLC chroma_dc_total_zeros_vlc[3];
-
-static VLC run_vlc[6];
-static VLC run7_vlc;
-
-static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
-static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
-static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
-static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize);
-
-static av_always_inline uint32_t pack16to32(int a, int b){
-#ifdef WORDS_BIGENDIAN
- return (b&0xFFFF) + (a<<16);
-#else
- return (a&0xFFFF) + (b<<16);
-#endif
-}
-
-const uint8_t ff_rem6[52]={
-0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
-};
-
-const uint8_t ff_div6[52]={
-0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8,
-};
+#ifndef FFMPEG_RECTANGLE_H
+#define FFMPEG_RECTANGLE_H
+#include "common.h"
/**
* fill a rectangle.
@@ -163,7952 +118,4 @@ static av_always_inline void fill_rectan
assert(h==4);
}
-static void fill_caches(H264Context *h, int mb_type, int for_deblock){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
- int topleft_xy, top_xy, topright_xy, left_xy[2];
- int topleft_type, top_type, topright_type, left_type[2];
- int left_block[8];
- int i;
-
- top_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
-
- //FIXME deblocking could skip the intra and nnz parts.
- if(for_deblock && (h->slice_num == 1 || h->slice_table[mb_xy] == h->slice_table[top_xy]) && !FRAME_MBAFF)
- return;
-
- //wow what a mess, why didn't they simplify the interlacing&intra stuff, i can't imagine that these complex rules are worth it
-
- topleft_xy = top_xy - 1;
- topright_xy= top_xy + 1;
- left_xy[1] = left_xy[0] = mb_xy-1;
- left_block[0]= 0;
- left_block[1]= 1;
- left_block[2]= 2;
- left_block[3]= 3;
- left_block[4]= 7;
- left_block[5]= 10;
- left_block[6]= 8;
- left_block[7]= 11;
- if(FRAME_MBAFF){
- const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
- const int top_pair_xy = pair_xy - s->mb_stride;
- const int topleft_pair_xy = top_pair_xy - 1;
- const int topright_pair_xy = top_pair_xy + 1;
- const int topleft_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topleft_pair_xy]);
- const int top_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
- const int topright_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[topright_pair_xy]);
- const int left_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
- const int curr_mb_frame_flag = !IS_INTERLACED(mb_type);
- const int bottom = (s->mb_y & 1);
- tprintf(s->avctx, "fill_caches: curr_mb_frame_flag:%d, left_mb_frame_flag:%d, topleft_mb_frame_flag:%d, top_mb_frame_flag:%d, topright_mb_frame_flag:%d\n", curr_mb_frame_flag, left_mb_frame_flag, topleft_mb_frame_flag, top_mb_frame_flag, topright_mb_frame_flag);
- if (bottom
- ? !curr_mb_frame_flag // bottom macroblock
- : (!curr_mb_frame_flag && !top_mb_frame_flag) // top macroblock
- ) {
- top_xy -= s->mb_stride;
- }
- if (bottom
- ? !curr_mb_frame_flag // bottom macroblock
- : (!curr_mb_frame_flag && !topleft_mb_frame_flag) // top macroblock
- ) {
- topleft_xy -= s->mb_stride;
- }
- if (bottom
- ? !curr_mb_frame_flag // bottom macroblock
- : (!curr_mb_frame_flag && !topright_mb_frame_flag) // top macroblock
- ) {
- topright_xy -= s->mb_stride;
- }
- if (left_mb_frame_flag != curr_mb_frame_flag) {
- left_xy[1] = left_xy[0] = pair_xy - 1;
- if (curr_mb_frame_flag) {
- if (bottom) {
- left_block[0]= 2;
- left_block[1]= 2;
- left_block[2]= 3;
- left_block[3]= 3;
- left_block[4]= 8;
- left_block[5]= 11;
- left_block[6]= 8;
- left_block[7]= 11;
- } else {
- left_block[0]= 0;
- left_block[1]= 0;
- left_block[2]= 1;
- left_block[3]= 1;
- left_block[4]= 7;
- left_block[5]= 10;
- left_block[6]= 7;
- left_block[7]= 10;
- }
- } else {
- left_xy[1] += s->mb_stride;
- //left_block[0]= 0;
- left_block[1]= 2;
- left_block[2]= 0;
- left_block[3]= 2;
- //left_block[4]= 7;
- left_block[5]= 10;
- left_block[6]= 7;
- left_block[7]= 10;
- }
- }
- }
-
- h->top_mb_xy = top_xy;
- h->left_mb_xy[0] = left_xy[0];
- h->left_mb_xy[1] = left_xy[1];
- if(for_deblock){
- topleft_type = 0;
- topright_type = 0;
- top_type = h->slice_table[top_xy ] < 255 ? s->current_picture.mb_type[top_xy] : 0;
- left_type[0] = h->slice_table[left_xy[0] ] < 255 ? s->current_picture.mb_type[left_xy[0]] : 0;
- left_type[1] = h->slice_table[left_xy[1] ] < 255 ? s->current_picture.mb_type[left_xy[1]] : 0;
-
- if(FRAME_MBAFF && !IS_INTRA(mb_type)){
- int list;
- int v = *(uint16_t*)&h->non_zero_count[mb_xy][14];
- for(i=0; i<16; i++)
- h->non_zero_count_cache[scan8[i]] = (v>>i)&1;
- for(list=0; list<h->list_count; list++){
- if(USES_LIST(mb_type,list)){
- uint32_t *src = (uint32_t*)s->current_picture.motion_val[list][h->mb2b_xy[mb_xy]];
- uint32_t *dst = (uint32_t*)h->mv_cache[list][scan8[0]];
- int8_t *ref = &s->current_picture.ref_index[list][h->mb2b8_xy[mb_xy]];
- for(i=0; i<4; i++, dst+=8, src+=h->b_stride){
- dst[0] = src[0];
- dst[1] = src[1];
- dst[2] = src[2];
- dst[3] = src[3];
- }
- *(uint32_t*)&h->ref_cache[list][scan8[ 0]] =
- *(uint32_t*)&h->ref_cache[list][scan8[ 2]] = pack16to32(ref[0],ref[1])*0x0101;
- ref += h->b8_stride;
- *(uint32_t*)&h->ref_cache[list][scan8[ 8]] =
- *(uint32_t*)&h->ref_cache[list][scan8[10]] = pack16to32(ref[0],ref[1])*0x0101;
- }else{
- fill_rectangle(&h-> mv_cache[list][scan8[ 0]], 4, 4, 8, 0, 4);
- fill_rectangle(&h->ref_cache[list][scan8[ 0]], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1);
- }
- }
- }
- }else{
- topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
- top_type = h->slice_table[top_xy ] == h->slice_num ? s->current_picture.mb_type[top_xy] : 0;
- topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
- left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
- left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
- }
-
- if(IS_INTRA(mb_type)){
- h->topleft_samples_available=
- h->top_samples_available=
- h->left_samples_available= 0xFFFF;
- h->topright_samples_available= 0xEEEA;
-
- if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
- h->topleft_samples_available= 0xB3FF;
- h->top_samples_available= 0x33FF;
- h->topright_samples_available= 0x26EA;
- }
- for(i=0; i<2; i++){
- if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
- h->topleft_samples_available&= 0xDF5F;
- h->left_samples_available&= 0x5F5F;
- }
- }
-
- if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
- h->topleft_samples_available&= 0x7FFF;
-
- if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
- h->topright_samples_available&= 0xFBFF;
-
- if(IS_INTRA4x4(mb_type)){
- if(IS_INTRA4x4(top_type)){
- h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
- h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
- h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
- h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
- }else{
- int pred;
- if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))
- pred= -1;
- else{
- pred= 2;
- }
- h->intra4x4_pred_mode_cache[4+8*0]=
- h->intra4x4_pred_mode_cache[5+8*0]=
- h->intra4x4_pred_mode_cache[6+8*0]=
- h->intra4x4_pred_mode_cache[7+8*0]= pred;
- }
- for(i=0; i<2; i++){
- if(IS_INTRA4x4(left_type[i])){
- h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
- h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
- }else{
- int pred;
- if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))
- pred= -1;
- else{
- pred= 2;
- }
- h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
- h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
- }
- }
- }
- }
-
-
-/*
-0 . T T. T T T T
-1 L . .L . . . .
-2 L . .L . . . .
-3 . T TL . . . .
-4 L . .L . . . .
-5 L . .. . . . .
-*/
-//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
- if(top_type){
- h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][4];
- h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][5];
- h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][6];
- h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
-
- h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][9];
- h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
-
- h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][12];
- h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
-
- }else{
- h->non_zero_count_cache[4+8*0]=
- h->non_zero_count_cache[5+8*0]=
- h->non_zero_count_cache[6+8*0]=
- h->non_zero_count_cache[7+8*0]=
-
- h->non_zero_count_cache[1+8*0]=
- h->non_zero_count_cache[2+8*0]=
-
- h->non_zero_count_cache[1+8*3]=
- h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
-
- }
-
- for (i=0; i<2; i++) {
- if(left_type[i]){
- h->non_zero_count_cache[3+8*1 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[0+2*i]];
- h->non_zero_count_cache[3+8*2 + 2*8*i]= h->non_zero_count[left_xy[i]][left_block[1+2*i]];
- h->non_zero_count_cache[0+8*1 + 8*i]= h->non_zero_count[left_xy[i]][left_block[4+2*i]];
- h->non_zero_count_cache[0+8*4 + 8*i]= h->non_zero_count[left_xy[i]][left_block[5+2*i]];
- }else{
- h->non_zero_count_cache[3+8*1 + 2*8*i]=
- h->non_zero_count_cache[3+8*2 + 2*8*i]=
- h->non_zero_count_cache[0+8*1 + 8*i]=
- h->non_zero_count_cache[0+8*4 + 8*i]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
- }
- }
-
- if( h->pps.cabac ) {
- // top_cbp
- if(top_type) {
- h->top_cbp = h->cbp_table[top_xy];
- } else if(IS_INTRA(mb_type)) {
- h->top_cbp = 0x1C0;
- } else {
- h->top_cbp = 0;
- }
- // left_cbp
- if (left_type[0]) {
- h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
- } else if(IS_INTRA(mb_type)) {
- h->left_cbp = 0x1C0;
- } else {
- h->left_cbp = 0;
- }
- if (left_type[0]) {
- h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
- }
- if (left_type[1]) {
- h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
- }
- }
-
-#if 1
- if(IS_INTER(mb_type) || IS_DIRECT(mb_type)){
- int list;
- for(list=0; list<h->list_count; list++){
- if(!USES_LIST(mb_type, list) && !IS_DIRECT(mb_type) && !h->deblocking_filter){
- /*if(!h->mv_cache_clean[list]){
- memset(h->mv_cache [list], 0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
- memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
- h->mv_cache_clean[list]= 1;
- }*/
- continue;
- }
- h->mv_cache_clean[list]= 0;
-
- if(USES_LIST(top_type, list)){
- const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
- *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
- h->ref_cache[list][scan8[0] + 0 - 1*8]=
- h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
- h->ref_cache[list][scan8[0] + 2 - 1*8]=
- h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
- }else{
- *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]=
- *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
- *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
- }
-
- for(i=0; i<2; i++){
- int cache_idx = scan8[0] - 1 + i*2*8;
- if(USES_LIST(left_type[i], list)){
- const int b_xy= h->mb2b_xy[left_xy[i]] + 3;
- const int b8_xy= h->mb2b8_xy[left_xy[i]] + 1;
- *(uint32_t*)h->mv_cache[list][cache_idx ]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0+i*2]];
- *(uint32_t*)h->mv_cache[list][cache_idx+8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1+i*2]];
- h->ref_cache[list][cache_idx ]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0+i*2]>>1)];
- h->ref_cache[list][cache_idx+8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[1+i*2]>>1)];
- }else{
- *(uint32_t*)h->mv_cache [list][cache_idx ]=
- *(uint32_t*)h->mv_cache [list][cache_idx+8]= 0;
- h->ref_cache[list][cache_idx ]=
- h->ref_cache[list][cache_idx+8]= left_type[i] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
- }
-
- if((for_deblock || (IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)) && !FRAME_MBAFF)
- continue;
-
- if(USES_LIST(topleft_type, list)){
- const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
- h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
- }else{
- *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
- h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
-
- if(USES_LIST(topright_type, list)){
- const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
- const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
- *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
- h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
- }else{
- *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
- h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
- }
-
- if((IS_SKIP(mb_type) || IS_DIRECT(mb_type)) && !FRAME_MBAFF)
- continue;
-
- h->ref_cache[list][scan8[5 ]+1] =
- h->ref_cache[list][scan8[7 ]+1] =
- h->ref_cache[list][scan8[13]+1] = //FIXME remove past 3 (init somewhere else)
- h->ref_cache[list][scan8[4 ]] =
- h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
- *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
- *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
- *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
- *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
- *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
-
- if( h->pps.cabac ) {
- /* XXX beurk, Load mvd */
- if(USES_LIST(top_type, list)){
- const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
- *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
- }
- if(USES_LIST(left_type[0], list)){
- const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
- }
- if(USES_LIST(left_type[1], list)){
- const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
- *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
- }else{
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
- *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
- }
- *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
- *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
- *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewhere else)
- *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
- *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
-
- if(h->slice_type == B_TYPE){
- fill_rectangle(&h->direct_cache[scan8[0]], 4, 4, 8, 0, 1);
-
- if(IS_DIRECT(top_type)){
- *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0x01010101;
- }else if(IS_8X8(top_type)){
- int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
- h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
- h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
- }else{
- *(uint32_t*)&h->direct_cache[scan8[0] - 1*8]= 0;
- }
-
- if(IS_DIRECT(left_type[0]))
- h->direct_cache[scan8[0] - 1 + 0*8]= 1;
- else if(IS_8X8(left_type[0]))
- h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
- else
- h->direct_cache[scan8[0] - 1 + 0*8]= 0;
-
- if(IS_DIRECT(left_type[1]))
- h->direct_cache[scan8[0] - 1 + 2*8]= 1;
- else if(IS_8X8(left_type[1]))
- h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
- else
- h->direct_cache[scan8[0] - 1 + 2*8]= 0;
- }
- }
-
- if(FRAME_MBAFF){
-#define MAP_MVS\
- MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\
- MAP_F2F(scan8[0] + 0 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 1 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 2 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 3 - 1*8, top_type)\
- MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\
- MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\
- MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\
- MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\
- MAP_F2F(scan8[0] - 1 + 3*8, left_type[1])
- if(MB_FIELD){
-#define MAP_F2F(idx, mb_type)\
- if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
- h->ref_cache[list][idx] <<= 1;\
- h->mv_cache[list][idx][1] /= 2;\
- h->mvd_cache[list][idx][1] /= 2;\
- }
- MAP_MVS
-#undef MAP_F2F
- }else{
-#define MAP_F2F(idx, mb_type)\
- if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\
- h->ref_cache[list][idx] >>= 1;\
- h->mv_cache[list][idx][1] <<= 1;\
- h->mvd_cache[list][idx][1] <<= 1;\
- }
- MAP_MVS
-#undef MAP_F2F
- }
- }
- }
- }
-#endif
-
- h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]);
-}
-
-static inline void write_back_intra_pred_mode(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
-
- h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
- h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
- h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
- h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
- h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
- h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
- h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
-}
-
-/**
- * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
- */
-static inline int check_intra4x4_pred_mode(H264Context *h){
- MpegEncContext * const s = &h->s;
- static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
- static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
- int i;
-
- if(!(h->top_samples_available&0x8000)){
- for(i=0; i<4; i++){
- int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
- if(status<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
- return -1;
- } else if(status){
- h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
- }
- }
- }
-
- if(!(h->left_samples_available&0x8000)){
- for(i=0; i<4; i++){
- int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
- if(status<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
- return -1;
- } else if(status){
- h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
- }
- }
- }
-
- return 0;
-} //FIXME cleanup like next
-
-/**
- * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
- */
-static inline int check_intra_pred_mode(H264Context *h, int mode){
- MpegEncContext * const s = &h->s;
- static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
- static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
-
- if(mode > 6U) {
- av_log(h->s.avctx, AV_LOG_ERROR, "out of range intra chroma pred mode at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- if(!(h->top_samples_available&0x8000)){
- mode= top[ mode ];
- if(mode<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- }
-
- if(!(h->left_samples_available&0x8000)){
- mode= left[ mode ];
- if(mode<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- }
-
- return mode;
-}
-
-/**
- * gets the predicted intra4x4 prediction mode.
- */
-static inline int pred_intra_mode(H264Context *h, int n){
- const int index8= scan8[n];
- const int left= h->intra4x4_pred_mode_cache[index8 - 1];
- const int top = h->intra4x4_pred_mode_cache[index8 - 8];
- const int min= FFMIN(left, top);
-
- tprintf(h->s.avctx, "mode:%d %d min:%d\n", left ,top, min);
-
- if(min<0) return DC_PRED;
- else return min;
-}
-
-static inline void write_back_non_zero_count(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
-
- h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[7+8*1];
- h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[7+8*2];
- h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[7+8*3];
- h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
- h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[4+8*4];
- h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[5+8*4];
- h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[6+8*4];
-
- h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[1+8*2];
- h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
- h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[2+8*1];
-
- h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[1+8*5];
- h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
- h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[2+8*4];
-
- if(FRAME_MBAFF){
- // store all luma nnzs, for deblocking
- int v = 0, i;
- for(i=0; i<16; i++)
- v += (!!h->non_zero_count_cache[scan8[i]]) << i;
- *(uint16_t*)&h->non_zero_count[mb_xy][14] = v;
- }
-}
-
-/**
- * gets the predicted number of non zero coefficients.
- * @param n block index
- */
-static inline int pred_non_zero_count(H264Context *h, int n){
- const int index8= scan8[n];
- const int left= h->non_zero_count_cache[index8 - 1];
- const int top = h->non_zero_count_cache[index8 - 8];
- int i= left + top;
-
- if(i<64) i= (i+1)>>1;
-
- tprintf(h->s.avctx, "pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
-
- return i&31;
-}
-
-static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
- const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
- MpegEncContext *s = &h->s;
-
- /* there is no consistent mapping of mvs to neighboring locations that will
- * make mbaff happy, so we can't move all this logic to fill_caches */
- if(FRAME_MBAFF){
- const uint32_t *mb_types = s->current_picture_ptr->mb_type;
- const int16_t *mv;
- *(uint32_t*)h->mv_cache[list][scan8[0]-2] = 0;
- *C = h->mv_cache[list][scan8[0]-2];
-
- if(!MB_FIELD
- && (s->mb_y&1) && i < scan8[0]+8 && topright_ref != PART_NOT_AVAILABLE){
- int topright_xy = s->mb_x + (s->mb_y-1)*s->mb_stride + (i == scan8[0]+3);
- if(IS_INTERLACED(mb_types[topright_xy])){
-#define SET_DIAG_MV(MV_OP, REF_OP, X4, Y4)\
- const int x4 = X4, y4 = Y4;\
- const int mb_type = mb_types[(x4>>2)+(y4>>2)*s->mb_stride];\
- if(!USES_LIST(mb_type,list) && !IS_8X8(mb_type))\
- return LIST_NOT_USED;\
- mv = s->current_picture_ptr->motion_val[list][x4 + y4*h->b_stride];\
- h->mv_cache[list][scan8[0]-2][0] = mv[0];\
- h->mv_cache[list][scan8[0]-2][1] = mv[1] MV_OP;\
- return s->current_picture_ptr->ref_index[list][(x4>>1) + (y4>>1)*h->b8_stride] REF_OP;
-
- SET_DIAG_MV(*2, >>1, s->mb_x*4+(i&7)-4+part_width, s->mb_y*4-1);
- }
- }
- if(topright_ref == PART_NOT_AVAILABLE
- && ((s->mb_y&1) || i >= scan8[0]+8) && (i&7)==4
- && h->ref_cache[list][scan8[0]-1] != PART_NOT_AVAILABLE){
- if(!MB_FIELD
- && IS_INTERLACED(mb_types[h->left_mb_xy[0]])){
- SET_DIAG_MV(*2, >>1, s->mb_x*4-1, (s->mb_y|1)*4+(s->mb_y&1)*2+(i>>4)-1);
- }
- if(MB_FIELD
- && !IS_INTERLACED(mb_types[h->left_mb_xy[0]])
- && i >= scan8[0]+8){
- // leftshift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's ok.
- SET_DIAG_MV(>>1, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2);
- }
- }
-#undef SET_DIAG_MV
- }
-
- if(topright_ref != PART_NOT_AVAILABLE){
- *C= h->mv_cache[list][ i - 8 + part_width ];
- return topright_ref;
- }else{
- tprintf(s->avctx, "topright MV not available\n");
-
- *C= h->mv_cache[list][ i - 8 - 1 ];
- return h->ref_cache[list][ i - 8 - 1 ];
- }
-}
-
-/**
- * gets the predicted MV.
- * @param n the block index
- * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
- * @param mx the x component of the predicted motion vector
- * @param my the y component of the predicted motion vector
- */
-static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
- const int index8= scan8[n];
- const int top_ref= h->ref_cache[list][ index8 - 8 ];
- const int left_ref= h->ref_cache[list][ index8 - 1 ];
- const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
- const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
- const int16_t * C;
- int diagonal_ref, match_count;
-
- assert(part_width==1 || part_width==2 || part_width==4);
-
-/* mv_cache
- B . . A T T T T
- U . . L . . , .
- U . . L . . . .
- U . . L . . , .
- . . . L . . . .
-*/
-
- diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
- match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
- tprintf(h->s.avctx, "pred_motion match_count=%d\n", match_count);
- if(match_count > 1){ //most common
- *mx= mid_pred(A[0], B[0], C[0]);
- *my= mid_pred(A[1], B[1], C[1]);
- }else if(match_count==1){
- if(left_ref==ref){
- *mx= A[0];
- *my= A[1];
- }else if(top_ref==ref){
- *mx= B[0];
- *my= B[1];
- }else{
- *mx= C[0];
- *my= C[1];
- }
- }else{
- if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
- *mx= A[0];
- *my= A[1];
- }else{
- *mx= mid_pred(A[0], B[0], C[0]);
- *my= mid_pred(A[1], B[1], C[1]);
- }
- }
-
- tprintf(h->s.avctx, "pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list);
-}
-
-/**
- * gets the directionally predicted 16x8 MV.
- * @param n the block index
- * @param mx the x component of the predicted motion vector
- * @param my the y component of the predicted motion vector
- */
-static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
- if(n==0){
- const int top_ref= h->ref_cache[list][ scan8[0] - 8 ];
- const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
-
- tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(top_ref == ref){
- *mx= B[0];
- *my= B[1];
- return;
- }
- }else{
- const int left_ref= h->ref_cache[list][ scan8[8] - 1 ];
- const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
-
- tprintf(h->s.avctx, "pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(left_ref == ref){
- *mx= A[0];
- *my= A[1];
- return;
- }
- }
-
- //RARE
- pred_motion(h, n, 4, list, ref, mx, my);
-}
-
-/**
- * gets the directionally predicted 8x16 MV.
- * @param n the block index
- * @param mx the x component of the predicted motion vector
- * @param my the y component of the predicted motion vector
- */
-static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
- if(n==0){
- const int left_ref= h->ref_cache[list][ scan8[0] - 1 ];
- const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
-
- tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(left_ref == ref){
- *mx= A[0];
- *my= A[1];
- return;
- }
- }else{
- const int16_t * C;
- int diagonal_ref;
-
- diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
-
- tprintf(h->s.avctx, "pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d\n", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list);
-
- if(diagonal_ref == ref){
- *mx= C[0];
- *my= C[1];
- return;
- }
- }
-
- //RARE
- pred_motion(h, n, 2, list, ref, mx, my);
-}
-
-static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
- const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
- const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
-
- tprintf(h->s.avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
-
- if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
- || (top_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
- || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
-
- *mx = *my = 0;
- return;
- }
-
- pred_motion(h, 0, 4, 0, 0, mx, my);
-
- return;
-}
-
-static inline void direct_dist_scale_factor(H264Context * const h){
- const int poc = h->s.current_picture_ptr->poc;
- const int poc1 = h->ref_list[1][0].poc;
- int i;
- for(i=0; i<h->ref_count[0]; i++){
- int poc0 = h->ref_list[0][i].poc;
- int td = av_clip(poc1 - poc0, -128, 127);
- if(td == 0 /* FIXME || pic0 is a long-term ref */){
- h->dist_scale_factor[i] = 256;
- }else{
- int tb = av_clip(poc - poc0, -128, 127);
- int tx = (16384 + (FFABS(td) >> 1)) / td;
- h->dist_scale_factor[i] = av_clip((tb*tx + 32) >> 6, -1024, 1023);
- }
- }
- if(FRAME_MBAFF){
- for(i=0; i<h->ref_count[0]; i++){
- h->dist_scale_factor_field[2*i] =
- h->dist_scale_factor_field[2*i+1] = h->dist_scale_factor[i];
- }
- }
-}
-static inline void direct_ref_list_init(H264Context * const h){
- MpegEncContext * const s = &h->s;
- Picture * const ref1 = &h->ref_list[1][0];
- Picture * const cur = s->current_picture_ptr;
- int list, i, j;
- if(cur->pict_type == I_TYPE)
- cur->ref_count[0] = 0;
- if(cur->pict_type != B_TYPE)
- cur->ref_count[1] = 0;
- for(list=0; list<2; list++){
- cur->ref_count[list] = h->ref_count[list];
- for(j=0; j<h->ref_count[list]; j++)
- cur->ref_poc[list][j] = h->ref_list[list][j].poc;
- }
- if(cur->pict_type != B_TYPE || h->direct_spatial_mv_pred)
- return;
- for(list=0; list<2; list++){
- for(i=0; i<ref1->ref_count[list]; i++){
- const int poc = ref1->ref_poc[list][i];
- h->map_col_to_list0[list][i] = 0; /* bogus; fills in for missing frames */
- for(j=0; j<h->ref_count[list]; j++)
- if(h->ref_list[list][j].poc == poc){
- h->map_col_to_list0[list][i] = j;
- break;
- }
- }
- }
- if(FRAME_MBAFF){
- for(list=0; list<2; list++){
- for(i=0; i<ref1->ref_count[list]; i++){
- j = h->map_col_to_list0[list][i];
- h->map_col_to_list0_field[list][2*i] = 2*j;
- h->map_col_to_list0_field[list][2*i+1] = 2*j+1;
- }
- }
- }
-}
-
-static inline void pred_direct_motion(H264Context * const h, int *mb_type){
- MpegEncContext * const s = &h->s;
- const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
- const int b8_xy = 2*s->mb_x + 2*s->mb_y*h->b8_stride;
- const int b4_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
- const int mb_type_col = h->ref_list[1][0].mb_type[mb_xy];
- const int16_t (*l1mv0)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[0][b4_xy];
- const int16_t (*l1mv1)[2] = (const int16_t (*)[2]) &h->ref_list[1][0].motion_val[1][b4_xy];
- const int8_t *l1ref0 = &h->ref_list[1][0].ref_index[0][b8_xy];
- const int8_t *l1ref1 = &h->ref_list[1][0].ref_index[1][b8_xy];
- const int is_b8x8 = IS_8X8(*mb_type);
- unsigned int sub_mb_type;
- int i8, i4;
-
-#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
- if(IS_8X8(mb_type_col) && !h->sps.direct_8x8_inference_flag){
- /* FIXME save sub mb types from previous frames (or derive from MVs)
- * so we know exactly what block size to use */
- sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
- *mb_type = MB_TYPE_8x8|MB_TYPE_L0L1;
- }else if(!is_b8x8 && (mb_type_col & MB_TYPE_16x16_OR_INTRA)){
- sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
- *mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
- }else{
- sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
- *mb_type = MB_TYPE_8x8|MB_TYPE_L0L1;
- }
- if(!is_b8x8)
- *mb_type |= MB_TYPE_DIRECT2;
- if(MB_FIELD)
- *mb_type |= MB_TYPE_INTERLACED;
-
- tprintf(s->avctx, "mb_type = %08x, sub_mb_type = %08x, is_b8x8 = %d, mb_type_col = %08x\n", *mb_type, sub_mb_type, is_b8x8, mb_type_col);
-
- if(h->direct_spatial_mv_pred){
- int ref[2];
- int mv[2][2];
- int list;
-
- /* FIXME interlacing + spatial direct uses wrong colocated block positions */
-
- /* ref = min(neighbors) */
- for(list=0; list<2; list++){
- int refa = h->ref_cache[list][scan8[0] - 1];
- int refb = h->ref_cache[list][scan8[0] - 8];
- int refc = h->ref_cache[list][scan8[0] - 8 + 4];
- if(refc == -2)
- refc = h->ref_cache[list][scan8[0] - 8 - 1];
- ref[list] = refa;
- if(ref[list] < 0 || (refb < ref[list] && refb >= 0))
- ref[list] = refb;
- if(ref[list] < 0 || (refc < ref[list] && refc >= 0))
- ref[list] = refc;
- if(ref[list] < 0)
- ref[list] = -1;
- }
-
- if(ref[0] < 0 && ref[1] < 0){
- ref[0] = ref[1] = 0;
- mv[0][0] = mv[0][1] =
- mv[1][0] = mv[1][1] = 0;
- }else{
- for(list=0; list<2; list++){
- if(ref[list] >= 0)
- pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
- else
- mv[list][0] = mv[list][1] = 0;
- }
- }
-
- if(ref[1] < 0){
- *mb_type &= ~MB_TYPE_P0L1;
- sub_mb_type &= ~MB_TYPE_P0L1;
- }else if(ref[0] < 0){
- *mb_type &= ~MB_TYPE_P0L0;
- sub_mb_type &= ~MB_TYPE_P0L0;
- }
-
- if(IS_16X16(*mb_type)){
- int a=0, b=0;
-
- fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
- fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
- if(!IS_INTRA(mb_type_col)
- && ( (l1ref0[0] == 0 && FFABS(l1mv0[0][0]) <= 1 && FFABS(l1mv0[0][1]) <= 1)
- || (l1ref0[0] < 0 && l1ref1[0] == 0 && FFABS(l1mv1[0][0]) <= 1 && FFABS(l1mv1[0][1]) <= 1
- && (h->x264_build>33 || !h->x264_build)))){
- if(ref[0] > 0)
- a= pack16to32(mv[0][0],mv[0][1]);
- if(ref[1] > 0)
- b= pack16to32(mv[1][0],mv[1][1]);
- }else{
- a= pack16to32(mv[0][0],mv[0][1]);
- b= pack16to32(mv[1][0],mv[1][1]);
- }
- fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, a, 4);
- fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, b, 4);
- }else{
- for(i8=0; i8<4; i8++){
- const int x8 = i8&1;
- const int y8 = i8>>1;
-
- if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
- continue;
- h->sub_mb_type[i8] = sub_mb_type;
-
- fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mv[0][0],mv[0][1]), 4);
- fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mv[1][0],mv[1][1]), 4);
- fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[0], 1);
- fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, (uint8_t)ref[1], 1);
-
- /* col_zero_flag */
- if(!IS_INTRA(mb_type_col) && ( l1ref0[x8 + y8*h->b8_stride] == 0
- || (l1ref0[x8 + y8*h->b8_stride] < 0 && l1ref1[x8 + y8*h->b8_stride] == 0
- && (h->x264_build>33 || !h->x264_build)))){
- const int16_t (*l1mv)[2]= l1ref0[x8 + y8*h->b8_stride] == 0 ? l1mv0 : l1mv1;
- if(IS_SUB_8X8(sub_mb_type)){
- const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride];
- if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
- if(ref[0] == 0)
- fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
- if(ref[1] == 0)
- fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
- }
- }else
- for(i4=0; i4<4; i4++){
- const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
- if(FFABS(mv_col[0]) <= 1 && FFABS(mv_col[1]) <= 1){
- if(ref[0] == 0)
- *(uint32_t*)h->mv_cache[0][scan8[i8*4+i4]] = 0;
- if(ref[1] == 0)
- *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] = 0;
- }
- }
- }
- }
- }
- }else{ /* direct temporal mv pred */
- const int *map_col_to_list0[2] = {h->map_col_to_list0[0], h->map_col_to_list0[1]};
- const int *dist_scale_factor = h->dist_scale_factor;
-
- if(FRAME_MBAFF){
- if(IS_INTERLACED(*mb_type)){
- map_col_to_list0[0] = h->map_col_to_list0_field[0];
- map_col_to_list0[1] = h->map_col_to_list0_field[1];
- dist_scale_factor = h->dist_scale_factor_field;
- }
- if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col)){
- /* FIXME assumes direct_8x8_inference == 1 */
- const int pair_xy = s->mb_x + (s->mb_y&~1)*s->mb_stride;
- int mb_types_col[2];
- int y_shift;
-
- *mb_type = MB_TYPE_8x8|MB_TYPE_L0L1
- | (is_b8x8 ? 0 : MB_TYPE_DIRECT2)
- | (*mb_type & MB_TYPE_INTERLACED);
- sub_mb_type = MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_16x16;
-
- if(IS_INTERLACED(*mb_type)){
- /* frame to field scaling */
- mb_types_col[0] = h->ref_list[1][0].mb_type[pair_xy];
- mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
- if(s->mb_y&1){
- l1ref0 -= 2*h->b8_stride;
- l1ref1 -= 2*h->b8_stride;
- l1mv0 -= 4*h->b_stride;
- l1mv1 -= 4*h->b_stride;
- }
- y_shift = 0;
-
- if( (mb_types_col[0] & MB_TYPE_16x16_OR_INTRA)
- && (mb_types_col[1] & MB_TYPE_16x16_OR_INTRA)
- && !is_b8x8)
- *mb_type |= MB_TYPE_16x8;
- else
- *mb_type |= MB_TYPE_8x8;
- }else{
- /* field to frame scaling */
- /* col_mb_y = (mb_y&~1) + (topAbsDiffPOC < bottomAbsDiffPOC ? 0 : 1)
- * but in MBAFF, top and bottom POC are equal */
- int dy = (s->mb_y&1) ? 1 : 2;
- mb_types_col[0] =
- mb_types_col[1] = h->ref_list[1][0].mb_type[pair_xy+s->mb_stride];
- l1ref0 += dy*h->b8_stride;
- l1ref1 += dy*h->b8_stride;
- l1mv0 += 2*dy*h->b_stride;
- l1mv1 += 2*dy*h->b_stride;
- y_shift = 2;
-
- if((mb_types_col[0] & (MB_TYPE_16x16_OR_INTRA|MB_TYPE_16x8))
- && !is_b8x8)
- *mb_type |= MB_TYPE_16x16;
- else
- *mb_type |= MB_TYPE_8x8;
- }
-
- for(i8=0; i8<4; i8++){
- const int x8 = i8&1;
- const int y8 = i8>>1;
- int ref0, scale;
- const int16_t (*l1mv)[2]= l1mv0;
-
- if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
- continue;
- h->sub_mb_type[i8] = sub_mb_type;
-
- fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
- if(IS_INTRA(mb_types_col[y8])){
- fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
- fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
- fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
- continue;
- }
-
- ref0 = l1ref0[x8 + (y8*2>>y_shift)*h->b8_stride];
- if(ref0 >= 0)
- ref0 = map_col_to_list0[0][ref0*2>>y_shift];
- else{
- ref0 = map_col_to_list0[1][l1ref1[x8 + (y8*2>>y_shift)*h->b8_stride]*2>>y_shift];
- l1mv= l1mv1;
- }
- scale = dist_scale_factor[ref0];
- fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
-
- {
- const int16_t *mv_col = l1mv[x8*3 + (y8*6>>y_shift)*h->b_stride];
- int my_col = (mv_col[1]<<y_shift)/2;
- int mx = (scale * mv_col[0] + 128) >> 8;
- int my = (scale * my_col + 128) >> 8;
- fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
- fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-my_col), 4);
- }
- }
- return;
- }
- }
-
- /* one-to-one mv scaling */
-
- if(IS_16X16(*mb_type)){
- int ref, mv0, mv1;
-
- fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, 0, 1);
- if(IS_INTRA(mb_type_col)){
- ref=mv0=mv1=0;
- }else{
- const int ref0 = l1ref0[0] >= 0 ? map_col_to_list0[0][l1ref0[0]]
- : map_col_to_list0[1][l1ref1[0]];
- const int scale = dist_scale_factor[ref0];
- const int16_t *mv_col = l1ref0[0] >= 0 ? l1mv0[0] : l1mv1[0];
- int mv_l0[2];
- mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
- mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
- ref= ref0;
- mv0= pack16to32(mv_l0[0],mv_l0[1]);
- mv1= pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
- }
- fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, ref, 1);
- fill_rectangle(&h-> mv_cache[0][scan8[0]], 4, 4, 8, mv0, 4);
- fill_rectangle(&h-> mv_cache[1][scan8[0]], 4, 4, 8, mv1, 4);
- }else{
- for(i8=0; i8<4; i8++){
- const int x8 = i8&1;
- const int y8 = i8>>1;
- int ref0, scale;
- const int16_t (*l1mv)[2]= l1mv0;
-
- if(is_b8x8 && !IS_DIRECT(h->sub_mb_type[i8]))
- continue;
- h->sub_mb_type[i8] = sub_mb_type;
- fill_rectangle(&h->ref_cache[1][scan8[i8*4]], 2, 2, 8, 0, 1);
- if(IS_INTRA(mb_type_col)){
- fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, 0, 1);
- fill_rectangle(&h-> mv_cache[0][scan8[i8*4]], 2, 2, 8, 0, 4);
- fill_rectangle(&h-> mv_cache[1][scan8[i8*4]], 2, 2, 8, 0, 4);
- continue;
- }
-
- ref0 = l1ref0[x8 + y8*h->b8_stride];
- if(ref0 >= 0)
- ref0 = map_col_to_list0[0][ref0];
- else{
- ref0 = map_col_to_list0[1][l1ref1[x8 + y8*h->b8_stride]];
- l1mv= l1mv1;
- }
- scale = dist_scale_factor[ref0];
-
- fill_rectangle(&h->ref_cache[0][scan8[i8*4]], 2, 2, 8, ref0, 1);
- if(IS_SUB_8X8(sub_mb_type)){
- const int16_t *mv_col = l1mv[x8*3 + y8*3*h->b_stride];
- int mx = (scale * mv_col[0] + 128) >> 8;
- int my = (scale * mv_col[1] + 128) >> 8;
- fill_rectangle(&h->mv_cache[0][scan8[i8*4]], 2, 2, 8, pack16to32(mx,my), 4);
- fill_rectangle(&h->mv_cache[1][scan8[i8*4]], 2, 2, 8, pack16to32(mx-mv_col[0],my-mv_col[1]), 4);
- }else
- for(i4=0; i4<4; i4++){
- const int16_t *mv_col = l1mv[x8*2 + (i4&1) + (y8*2 + (i4>>1))*h->b_stride];
- int16_t *mv_l0 = h->mv_cache[0][scan8[i8*4+i4]];
- mv_l0[0] = (scale * mv_col[0] + 128) >> 8;
- mv_l0[1] = (scale * mv_col[1] + 128) >> 8;
- *(uint32_t*)h->mv_cache[1][scan8[i8*4+i4]] =
- pack16to32(mv_l0[0]-mv_col[0],mv_l0[1]-mv_col[1]);
- }
- }
- }
- }
-}
-
-static inline void write_back_motion(H264Context *h, int mb_type){
- MpegEncContext * const s = &h->s;
- const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
- const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
- int list;
-
- if(!USES_LIST(mb_type, 0))
- fill_rectangle(&s->current_picture.ref_index[0][b8_xy], 2, 2, h->b8_stride, (uint8_t)LIST_NOT_USED, 1);
-
- for(list=0; list<h->list_count; list++){
- int y;
- if(!USES_LIST(mb_type, list))
- continue;
-
- for(y=0; y<4; y++){
- *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
- *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
- }
- if( h->pps.cabac ) {
- if(IS_SKIP(mb_type))
- fill_rectangle(h->mvd_table[list][b_xy], 4, 4, h->b_stride, 0, 4);
- else
- for(y=0; y<4; y++){
- *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
- *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
- }
- }
-
- {
- int8_t *ref_index = &s->current_picture.ref_index[list][b8_xy];
- ref_index[0+0*h->b8_stride]= h->ref_cache[list][scan8[0]];
- ref_index[1+0*h->b8_stride]= h->ref_cache[list][scan8[4]];
- ref_index[0+1*h->b8_stride]= h->ref_cache[list][scan8[8]];
- ref_index[1+1*h->b8_stride]= h->ref_cache[list][scan8[12]];
- }
- }
-
- if(h->slice_type == B_TYPE && h->pps.cabac){
- if(IS_8X8(mb_type)){
- uint8_t *direct_table = &h->direct_table[b8_xy];
- direct_table[1+0*h->b8_stride] = IS_DIRECT(h->sub_mb_type[1]) ? 1 : 0;
- direct_table[0+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[2]) ? 1 : 0;
- direct_table[1+1*h->b8_stride] = IS_DIRECT(h->sub_mb_type[3]) ? 1 : 0;
- }
- }
-}
-
-/**
- * Decodes a network abstraction layer unit.
- * @param consumed is the number of bytes used as input
- * @param length is the length of the array
- * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp tailing?
- * @returns decoded bytes, might be src+1 if no escapes
- */
-static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){
- int i, si, di;
- uint8_t *dst;
- int bufidx;
-
-// src[0]&0x80; //forbidden bit
- h->nal_ref_idc= src[0]>>5;
- h->nal_unit_type= src[0]&0x1F;
-
- src++; length--;
-#if 0
- for(i=0; i<length; i++)
- printf("%2X ", src[i]);
-#endif
- for(i=0; i+1<length; i+=2){
- if(src[i]) continue;
- if(i>0 && src[i-1]==0) i--;
- if(i+2<length && src[i+1]==0 && src[i+2]<=3){
- if(src[i+2]!=3){
- /* startcode, so we must be past the end */
- length=i;
- }
- break;
- }
- }
-
- if(i>=length-1){ //no escaped 0
- *dst_length= length;
- *consumed= length+1; //+1 for the header
- return src;
- }
-
- bufidx = h->nal_unit_type == NAL_DPC ? 1 : 0; // use second escape buffer for inter data
- h->rbsp_buffer[bufidx]= av_fast_realloc(h->rbsp_buffer[bufidx], &h->rbsp_buffer_size[bufidx], length);
- dst= h->rbsp_buffer[bufidx];
-
- if (dst == NULL){
- return NULL;
- }
-
-//printf("decoding esc\n");
- si=di=0;
- while(si<length){
- //remove escapes (very rare 1:2^22)
- if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
- if(src[si+2]==3){ //escape
- dst[di++]= 0;
- dst[di++]= 0;
- si+=3;
- continue;
- }else //next start code
- break;
- }
-
- dst[di++]= src[si++];
- }
-
- *dst_length= di;
- *consumed= si + 1;//+1 for the header
-//FIXME store exact number of bits in the getbitcontext (it is needed for decoding)
- return dst;
-}
-
-/**
- * identifies the exact end of the bitstream
- * @return the length of the trailing, or 0 if damaged
- */
-static int decode_rbsp_trailing(H264Context *h, uint8_t *src){
- int v= *src;
- int r;
-
- tprintf(h->s.avctx, "rbsp trailing %X\n", v);
-
- for(r=1; r<9; r++){
- if(v&1) return r;
- v>>=1;
- }
- return 0;
-}
-
-/**
- * idct tranforms the 16 dc values and dequantize them.
- * @param qp quantization parameter
- */
-static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
-#define stride 16
- int i;
- int temp[16]; //FIXME check if this is a good idea
- static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
- static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
-
-//memset(block, 64, 2*256);
-//return;
- for(i=0; i<4; i++){
- const int offset= y_offset[i];
- const int z0= block[offset+stride*0] + block[offset+stride*4];
- const int z1= block[offset+stride*0] - block[offset+stride*4];
- const int z2= block[offset+stride*1] - block[offset+stride*5];
- const int z3= block[offset+stride*1] + block[offset+stride*5];
-
- temp[4*i+0]= z0+z3;
- temp[4*i+1]= z1+z2;
- temp[4*i+2]= z1-z2;
- temp[4*i+3]= z0-z3;
- }
-
- for(i=0; i<4; i++){
- const int offset= x_offset[i];
- const int z0= temp[4*0+i] + temp[4*2+i];
- const int z1= temp[4*0+i] - temp[4*2+i];
- const int z2= temp[4*1+i] - temp[4*3+i];
- const int z3= temp[4*1+i] + temp[4*3+i];
-
- block[stride*0 +offset]= ((((z0 + z3)*qmul + 128 ) >> 8)); //FIXME think about merging this into decode_resdual
- block[stride*2 +offset]= ((((z1 + z2)*qmul + 128 ) >> 8));
- block[stride*8 +offset]= ((((z1 - z2)*qmul + 128 ) >> 8));
- block[stride*10+offset]= ((((z0 - z3)*qmul + 128 ) >> 8));
- }
-}
-
-#if 0
-/**
- * dct tranforms the 16 dc values.
- * @param qp quantization parameter ??? FIXME
- */
-static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
-// const int qmul= dequant_coeff[qp][0];
- int i;
- int temp[16]; //FIXME check if this is a good idea
- static const int x_offset[4]={0, 1*stride, 4* stride, 5*stride};
- static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
-
- for(i=0; i<4; i++){
- const int offset= y_offset[i];
- const int z0= block[offset+stride*0] + block[offset+stride*4];
- const int z1= block[offset+stride*0] - block[offset+stride*4];
- const int z2= block[offset+stride*1] - block[offset+stride*5];
- const int z3= block[offset+stride*1] + block[offset+stride*5];
-
- temp[4*i+0]= z0+z3;
- temp[4*i+1]= z1+z2;
- temp[4*i+2]= z1-z2;
- temp[4*i+3]= z0-z3;
- }
-
- for(i=0; i<4; i++){
- const int offset= x_offset[i];
- const int z0= temp[4*0+i] + temp[4*2+i];
- const int z1= temp[4*0+i] - temp[4*2+i];
- const int z2= temp[4*1+i] - temp[4*3+i];
- const int z3= temp[4*1+i] + temp[4*3+i];
-
- block[stride*0 +offset]= (z0 + z3)>>1;
- block[stride*2 +offset]= (z1 + z2)>>1;
- block[stride*8 +offset]= (z1 - z2)>>1;
- block[stride*10+offset]= (z0 - z3)>>1;
- }
-}
-#endif
-
-#undef xStride
-#undef stride
-
-static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp, int qmul){
- const int stride= 16*2;
- const int xStride= 16;
- int a,b,c,d,e;
-
- a= block[stride*0 + xStride*0];
- b= block[stride*0 + xStride*1];
- c= block[stride*1 + xStride*0];
- d= block[stride*1 + xStride*1];
-
- e= a-b;
- a= a+b;
- b= c-d;
- c= c+d;
-
- block[stride*0 + xStride*0]= ((a+c)*qmul) >> 7;
- block[stride*0 + xStride*1]= ((e+b)*qmul) >> 7;
- block[stride*1 + xStride*0]= ((a-c)*qmul) >> 7;
- block[stride*1 + xStride*1]= ((e-b)*qmul) >> 7;
-}
-
-#if 0
-static void chroma_dc_dct_c(DCTELEM *block){
- const int stride= 16*2;
- const int xStride= 16;
- int a,b,c,d,e;
-
- a= block[stride*0 + xStride*0];
- b= block[stride*0 + xStride*1];
- c= block[stride*1 + xStride*0];
- d= block[stride*1 + xStride*1];
-
- e= a-b;
- a= a+b;
- b= c-d;
- c= c+d;
-
- block[stride*0 + xStride*0]= (a+c);
- block[stride*0 + xStride*1]= (e+b);
- block[stride*1 + xStride*0]= (a-c);
- block[stride*1 + xStride*1]= (e-b);
-}
-#endif
-
-/**
- * gets the chroma qp.
- */
-static inline int get_chroma_qp(H264Context *h, int t, int qscale){
- return h->pps.chroma_qp_table[t][qscale & 0xff];
-}
-
-//FIXME need to check that this does not overflow signed 32 bit for low qp, i am not sure, it's very close
-//FIXME check that gcc inlines this (and optimizes intra & separate_dc stuff away)
-static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int separate_dc){
- int i;
- const int * const quant_table= quant_coeff[qscale];
- const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
- const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
- const unsigned int threshold2= (threshold1<<1);
- int last_non_zero;
-
- if(separate_dc){
- if(qscale<=18){
- //avoid overflows
- const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
- const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
- const unsigned int dc_threshold2= (dc_threshold1<<1);
-
- int level= block[0]*quant_coeff[qscale+18][0];
- if(((unsigned)(level+dc_threshold1))>dc_threshold2){
- if(level>0){
- level= (dc_bias + level)>>(QUANT_SHIFT-2);
- block[0]= level;
- }else{
- level= (dc_bias - level)>>(QUANT_SHIFT-2);
- block[0]= -level;
- }
-// last_non_zero = i;
- }else{
- block[0]=0;
- }
- }else{
- const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
- const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
- const unsigned int dc_threshold2= (dc_threshold1<<1);
-
- int level= block[0]*quant_table[0];
- if(((unsigned)(level+dc_threshold1))>dc_threshold2){
- if(level>0){
- level= (dc_bias + level)>>(QUANT_SHIFT+1);
- block[0]= level;
- }else{
- level= (dc_bias - level)>>(QUANT_SHIFT+1);
- block[0]= -level;
- }
-// last_non_zero = i;
- }else{
- block[0]=0;
- }
- }
- last_non_zero= 0;
- i=1;
- }else{
- last_non_zero= -1;
- i=0;
- }
-
- for(; i<16; i++){
- const int j= scantable[i];
- int level= block[j]*quant_table[j];
-
-// if( bias+level >= (1<<(QMAT_SHIFT - 3))
-// || bias-level >= (1<<(QMAT_SHIFT - 3))){
- if(((unsigned)(level+threshold1))>threshold2){
- if(level>0){
- level= (bias + level)>>QUANT_SHIFT;
- block[j]= level;
- }else{
- level= (bias - level)>>QUANT_SHIFT;
- block[j]= -level;
- }
- last_non_zero = i;
- }else{
- block[j]=0;
- }
- }
-
- return last_non_zero;
-}
-
-static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int src_x_offset, int src_y_offset,
- qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
- MpegEncContext * const s = &h->s;
- const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
- int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
- const int luma_xy= (mx&3) + ((my&3)<<2);
- uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->mb_linesize;
- uint8_t * src_cb, * src_cr;
- int extra_width= h->emu_edge_width;
- int extra_height= h->emu_edge_height;
- int emu=0;
- const int full_mx= mx>>2;
- const int full_my= my>>2;
- const int pic_width = 16*s->mb_width;
- const int pic_height = 16*s->mb_height >> MB_FIELD;
-
- if(!pic->data[0]) //FIXME this is unacceptable, some senseable error concealment must be done for missing reference frames
- return;
-
- if(mx&7) extra_width -= 3;
- if(my&7) extra_height -= 3;
-
- if( full_mx < 0-extra_width
- || full_my < 0-extra_height
- || full_mx + 16/*FIXME*/ > pic_width + extra_width
- || full_my + 16/*FIXME*/ > pic_height + extra_height){
- ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->mb_linesize, h->mb_linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
- src_y= s->edge_emu_buffer + 2 + 2*h->mb_linesize;
- emu=1;
- }
-
- qpix_op[luma_xy](dest_y, src_y, h->mb_linesize); //FIXME try variable height perhaps?
- if(!square){
- qpix_op[luma_xy](dest_y + delta, src_y + delta, h->mb_linesize);
- }
-
- if(ENABLE_GRAY && s->flags&CODEC_FLAG_GRAY) return;
-
- if(MB_FIELD){
- // chroma offset when predicting from a field of opposite parity
- my += 2 * ((s->mb_y & 1) - (pic->reference - 1));
- emu |= (my>>3) < 0 || (my>>3) + 8 >= (pic_height>>1);
- }
- src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
- src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->mb_uvlinesize;
-
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
- src_cb= s->edge_emu_buffer;
- }
- chroma_op(dest_cb, src_cb, h->mb_uvlinesize, chroma_height, mx&7, my&7);
-
- if(emu){
- ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->mb_uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
- src_cr= s->edge_emu_buffer;
- }
- chroma_op(dest_cr, src_cr, h->mb_uvlinesize, chroma_height, mx&7, my&7);
-}
-
-static inline void mc_part_std(H264Context *h, int n, int square, int chroma_height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
- qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
- int list0, int list1){
- MpegEncContext * const s = &h->s;
- qpel_mc_func *qpix_op= qpix_put;
- h264_chroma_mc_func chroma_op= chroma_put;
-
- dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
- dest_cb += x_offset + y_offset*h->mb_uvlinesize;
- dest_cr += x_offset + y_offset*h->mb_uvlinesize;
- x_offset += 8*s->mb_x;
- y_offset += 8*(s->mb_y >> MB_FIELD);
-
- if(list0){
- Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
- mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_op, chroma_op);
-
- qpix_op= qpix_avg;
- chroma_op= chroma_avg;
- }
-
- if(list1){
- Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
- mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_op, chroma_op);
- }
-}
-
-static inline void mc_part_weighted(H264Context *h, int n, int square, int chroma_height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
- h264_weight_func luma_weight_op, h264_weight_func chroma_weight_op,
- h264_biweight_func luma_weight_avg, h264_biweight_func chroma_weight_avg,
- int list0, int list1){
- MpegEncContext * const s = &h->s;
-
- dest_y += 2*x_offset + 2*y_offset*h-> mb_linesize;
- dest_cb += x_offset + y_offset*h->mb_uvlinesize;
- dest_cr += x_offset + y_offset*h->mb_uvlinesize;
- x_offset += 8*s->mb_x;
- y_offset += 8*(s->mb_y >> MB_FIELD);
-
- if(list0 && list1){
- /* don't optimize for luma-only case, since B-frames usually
- * use implicit weights => chroma too. */
- uint8_t *tmp_cb = s->obmc_scratchpad;
- uint8_t *tmp_cr = s->obmc_scratchpad + 8;
- uint8_t *tmp_y = s->obmc_scratchpad + 8*h->mb_uvlinesize;
- int refn0 = h->ref_cache[0][ scan8[n] ];
- int refn1 = h->ref_cache[1][ scan8[n] ];
-
- mc_dir_part(h, &h->ref_list[0][refn0], n, square, chroma_height, delta, 0,
- dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put);
- mc_dir_part(h, &h->ref_list[1][refn1], n, square, chroma_height, delta, 1,
- tmp_y, tmp_cb, tmp_cr,
- x_offset, y_offset, qpix_put, chroma_put);
-
- if(h->use_weight == 2){
- int weight0 = h->implicit_weight[refn0][refn1];
- int weight1 = 64 - weight0;
- luma_weight_avg( dest_y, tmp_y, h-> mb_linesize, 5, weight0, weight1, 0);
- chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, 5, weight0, weight1, 0);
- chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, 5, weight0, weight1, 0);
- }else{
- luma_weight_avg(dest_y, tmp_y, h->mb_linesize, h->luma_log2_weight_denom,
- h->luma_weight[0][refn0], h->luma_weight[1][refn1],
- h->luma_offset[0][refn0] + h->luma_offset[1][refn1]);
- chroma_weight_avg(dest_cb, tmp_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[0][refn0][0], h->chroma_weight[1][refn1][0],
- h->chroma_offset[0][refn0][0] + h->chroma_offset[1][refn1][0]);
- chroma_weight_avg(dest_cr, tmp_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[0][refn0][1], h->chroma_weight[1][refn1][1],
- h->chroma_offset[0][refn0][1] + h->chroma_offset[1][refn1][1]);
- }
- }else{
- int list = list1 ? 1 : 0;
- int refn = h->ref_cache[list][ scan8[n] ];
- Picture *ref= &h->ref_list[list][refn];
- mc_dir_part(h, ref, n, square, chroma_height, delta, list,
- dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put, chroma_put);
-
- luma_weight_op(dest_y, h->mb_linesize, h->luma_log2_weight_denom,
- h->luma_weight[list][refn], h->luma_offset[list][refn]);
- if(h->use_weight_chroma){
- chroma_weight_op(dest_cb, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[list][refn][0], h->chroma_offset[list][refn][0]);
- chroma_weight_op(dest_cr, h->mb_uvlinesize, h->chroma_log2_weight_denom,
- h->chroma_weight[list][refn][1], h->chroma_offset[list][refn][1]);
- }
- }
-}
-
-static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
- uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- int x_offset, int y_offset,
- qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
- qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
- h264_weight_func *weight_op, h264_biweight_func *weight_avg,
- int list0, int list1){
- if((h->use_weight==2 && list0 && list1
- && (h->implicit_weight[ h->ref_cache[0][scan8[n]] ][ h->ref_cache[1][scan8[n]] ] != 32))
- || h->use_weight==1)
- mc_part_weighted(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put,
- weight_op[0], weight_op[3], weight_avg[0], weight_avg[3], list0, list1);
- else
- mc_part_std(h, n, square, chroma_height, delta, dest_y, dest_cb, dest_cr,
- x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
-}
-
-static inline void prefetch_motion(H264Context *h, int list){
- /* fetch pixels for estimated mv 4 macroblocks ahead
- * optimized for 64byte cache lines */
- MpegEncContext * const s = &h->s;
- const int refn = h->ref_cache[list][scan8[0]];
- if(refn >= 0){
- const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
- const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
- uint8_t **src= h->ref_list[list][refn].data;
- int off= mx + (my + (s->mb_x&3)*4)*h->mb_linesize + 64;
- s->dsp.prefetch(src[0]+off, s->linesize, 4);
- off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
- s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
- }
-}
-
-static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
- qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
- qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
- h264_weight_func *weight_op, h264_biweight_func *weight_avg){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
- const int mb_type= s->current_picture.mb_type[mb_xy];
-
- assert(IS_INTER(mb_type));
-
- prefetch_motion(h, 0);
-
- if(IS_16X16(mb_type)){
- mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
- &weight_op[0], &weight_avg[0],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- }else if(IS_16X8(mb_type)){
- mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
- &weight_op[1], &weight_avg[1],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
- qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
- &weight_op[1], &weight_avg[1],
- IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
- }else if(IS_8X16(mb_type)){
- mc_part(h, 0, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 0, 0,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[2], &weight_avg[2],
- IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
- mc_part(h, 4, 0, 8, 8*h->mb_linesize, dest_y, dest_cb, dest_cr, 4, 0,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[2], &weight_avg[2],
- IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
- }else{
- int i;
-
- assert(IS_8X8(mb_type));
-
- for(i=0; i<4; i++){
- const int sub_mb_type= h->sub_mb_type[i];
- const int n= 4*i;
- int x_offset= (i&1)<<2;
- int y_offset= (i&2)<<1;
-
- if(IS_SUB_8X8(sub_mb_type)){
- mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
- &weight_op[3], &weight_avg[3],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }else if(IS_SUB_8X4(sub_mb_type)){
- mc_part(h, n , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
- &weight_op[4], &weight_avg[4],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
- qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
- &weight_op[4], &weight_avg[4],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }else if(IS_SUB_4X8(sub_mb_type)){
- mc_part(h, n , 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[5], &weight_avg[5],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- mc_part(h, n+1, 0, 4, 4*h->mb_linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[5], &weight_avg[5],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }else{
- int j;
- assert(IS_SUB_4X4(sub_mb_type));
- for(j=0; j<4; j++){
- int sub_x_offset= x_offset + 2*(j&1);
- int sub_y_offset= y_offset + (j&2);
- mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
- qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
- &weight_op[6], &weight_avg[6],
- IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
- }
- }
- }
- }
-
- prefetch_motion(h, 1);
-}
-
-static void decode_init_vlc(void){
- static int done = 0;
-
- if (!done) {
- int i;
- done = 1;
-
- init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5,
- &chroma_dc_coeff_token_len [0], 1, 1,
- &chroma_dc_coeff_token_bits[0], 1, 1, 1);
-
- for(i=0; i<4; i++){
- init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17,
- &coeff_token_len [i][0], 1, 1,
- &coeff_token_bits[i][0], 1, 1, 1);
- }
-
- for(i=0; i<3; i++){
- init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
- &chroma_dc_total_zeros_len [i][0], 1, 1,
- &chroma_dc_total_zeros_bits[i][0], 1, 1, 1);
- }
- for(i=0; i<15; i++){
- init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16,
- &total_zeros_len [i][0], 1, 1,
- &total_zeros_bits[i][0], 1, 1, 1);
- }
-
- for(i=0; i<6; i++){
- init_vlc(&run_vlc[i], RUN_VLC_BITS, 7,
- &run_len [i][0], 1, 1,
- &run_bits[i][0], 1, 1, 1);
- }
- init_vlc(&run7_vlc, RUN7_VLC_BITS, 16,
- &run_len [6][0], 1, 1,
- &run_bits[6][0], 1, 1, 1);
- }
-}
-
-static void free_tables(H264Context *h){
- int i;
- H264Context *hx;
- av_freep(&h->intra4x4_pred_mode);
- av_freep(&h->chroma_pred_mode_table);
- av_freep(&h->cbp_table);
- av_freep(&h->mvd_table[0]);
- av_freep(&h->mvd_table[1]);
- av_freep(&h->direct_table);
- av_freep(&h->non_zero_count);
- av_freep(&h->slice_table_base);
- h->slice_table= NULL;
-
- av_freep(&h->mb2b_xy);
- av_freep(&h->mb2b8_xy);
-
- for(i = 0; i < MAX_SPS_COUNT; i++)
- av_freep(h->sps_buffers + i);
-
- for(i = 0; i < MAX_PPS_COUNT; i++)
- av_freep(h->pps_buffers + i);
-
- for(i = 0; i < h->s.avctx->thread_count; i++) {
- hx = h->thread_context[i];
- if(!hx) continue;
- av_freep(&hx->top_borders[1]);
- av_freep(&hx->top_borders[0]);
- av_freep(&hx->s.obmc_scratchpad);
- av_freep(&hx->s.allocated_edge_emu_buffer);
- }
-}
-
-static void init_dequant8_coeff_table(H264Context *h){
- int i,q,x;
- const int transpose = (h->s.dsp.h264_idct8_add != ff_h264_idct8_add_c); //FIXME ugly
- h->dequant8_coeff[0] = h->dequant8_buffer[0];
- h->dequant8_coeff[1] = h->dequant8_buffer[1];
-
- for(i=0; i<2; i++ ){
- if(i && !memcmp(h->pps.scaling_matrix8[0], h->pps.scaling_matrix8[1], 64*sizeof(uint8_t))){
- h->dequant8_coeff[1] = h->dequant8_buffer[0];
- break;
- }
-
- for(q=0; q<52; q++){
- int shift = ff_div6[q];
- int idx = ff_rem6[q];
- for(x=0; x<64; x++)
- h->dequant8_coeff[i][q][transpose ? (x>>3)|((x&7)<<3) : x] =
- ((uint32_t)dequant8_coeff_init[idx][ dequant8_coeff_init_scan[((x>>1)&12) | (x&3)] ] *
- h->pps.scaling_matrix8[i][x]) << shift;
- }
- }
-}
-
-static void init_dequant4_coeff_table(H264Context *h){
- int i,j,q,x;
- const int transpose = (h->s.dsp.h264_idct_add != ff_h264_idct_add_c); //FIXME ugly
- for(i=0; i<6; i++ ){
- h->dequant4_coeff[i] = h->dequant4_buffer[i];
- for(j=0; j<i; j++){
- if(!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], 16*sizeof(uint8_t))){
- h->dequant4_coeff[i] = h->dequant4_buffer[j];
- break;
- }
- }
- if(j<i)
- continue;
-
- for(q=0; q<52; q++){
- int shift = ff_div6[q] + 2;
- int idx = ff_rem6[q];
- for(x=0; x<16; x++)
- h->dequant4_coeff[i][q][transpose ? (x>>2)|((x<<2)&0xF) : x] =
- ((uint32_t)dequant4_coeff_init[idx][(x&1) + ((x>>2)&1)] *
- h->pps.scaling_matrix4[i][x]) << shift;
- }
- }
-}
-
-static void init_dequant_tables(H264Context *h){
- int i,x;
- init_dequant4_coeff_table(h);
- if(h->pps.transform_8x8_mode)
- init_dequant8_coeff_table(h);
- if(h->sps.transform_bypass){
- for(i=0; i<6; i++)
- for(x=0; x<16; x++)
- h->dequant4_coeff[i][0][x] = 1<<6;
- if(h->pps.transform_8x8_mode)
- for(i=0; i<2; i++)
- for(x=0; x<64; x++)
- h->dequant8_coeff[i][0][x] = 1<<6;
- }
-}
-
-
-/**
- * allocates tables.
- * needs width/height
- */
-static int alloc_tables(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int big_mb_num= s->mb_stride * (s->mb_height+1);
- int x,y;
-
- CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8 * sizeof(uint8_t))
-
- CHECKED_ALLOCZ(h->non_zero_count , big_mb_num * 16 * sizeof(uint8_t))
- CHECKED_ALLOCZ(h->slice_table_base , (big_mb_num+s->mb_stride) * sizeof(uint8_t))
- CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
-
- if( h->pps.cabac ) {
- CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
- CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
- CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
- CHECKED_ALLOCZ(h->direct_table, 32*big_mb_num * sizeof(uint8_t));
- }
-
- memset(h->slice_table_base, -1, (big_mb_num+s->mb_stride) * sizeof(uint8_t));
- h->slice_table= h->slice_table_base + s->mb_stride*2 + 1;
-
- CHECKED_ALLOCZ(h->mb2b_xy , big_mb_num * sizeof(uint32_t));
- CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint32_t));
- for(y=0; y<s->mb_height; y++){
- for(x=0; x<s->mb_width; x++){
- const int mb_xy= x + y*s->mb_stride;
- const int b_xy = 4*x + 4*y*h->b_stride;
- const int b8_xy= 2*x + 2*y*h->b8_stride;
-
- h->mb2b_xy [mb_xy]= b_xy;
- h->mb2b8_xy[mb_xy]= b8_xy;
- }
- }
-
- s->obmc_scratchpad = NULL;
-
- if(!h->dequant4_coeff[0])
- init_dequant_tables(h);
-
- return 0;
-fail:
- free_tables(h);
- return -1;
-}
-
-/**
- * Mimic alloc_tables(), but for every context thread.
- */
-static void clone_tables(H264Context *dst, H264Context *src){
- dst->intra4x4_pred_mode = src->intra4x4_pred_mode;
- dst->non_zero_count = src->non_zero_count;
- dst->slice_table = src->slice_table;
- dst->cbp_table = src->cbp_table;
- dst->mb2b_xy = src->mb2b_xy;
- dst->mb2b8_xy = src->mb2b8_xy;
- dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
- dst->mvd_table[0] = src->mvd_table[0];
- dst->mvd_table[1] = src->mvd_table[1];
- dst->direct_table = src->direct_table;
-
- dst->s.obmc_scratchpad = NULL;
- ff_h264_pred_init(&dst->hpc, src->s.codec_id);
-}
-
-/**
- * Init context
- * Allocate buffers which are not shared amongst multiple threads.
- */
-static int context_init(H264Context *h){
- MpegEncContext * const s = &h->s;
-
- CHECKED_ALLOCZ(h->top_borders[0], h->s.mb_width * (16+8+8) * sizeof(uint8_t))
- CHECKED_ALLOCZ(h->top_borders[1], h->s.mb_width * (16+8+8) * sizeof(uint8_t))
-
- // edge emu needs blocksize + filter length - 1 (=17x17 for halfpel / 21x21 for h264)
- CHECKED_ALLOCZ(s->allocated_edge_emu_buffer,
- (s->width+64)*2*21*2); //(width + edge + align)*interlaced*MBsize*tolerance
- s->edge_emu_buffer= s->allocated_edge_emu_buffer + (s->width+64)*2*21;
- return 0;
-fail:
- return -1; // free_tables will clean up for us
-}
-
-static void common_init(H264Context *h){
- MpegEncContext * const s = &h->s;
-
- s->width = s->avctx->width;
- s->height = s->avctx->height;
- s->codec_id= s->avctx->codec->id;
-
- ff_h264_pred_init(&h->hpc, s->codec_id);
-
- h->dequant_coeff_pps= -1;
- s->unrestricted_mv=1;
- s->decode=1; //FIXME
-
- memset(h->pps.scaling_matrix4, 16, 6*16*sizeof(uint8_t));
- memset(h->pps.scaling_matrix8, 16, 2*64*sizeof(uint8_t));
-}
-
-static int decode_init(AVCodecContext *avctx){
- H264Context *h= avctx->priv_data;
- MpegEncContext * const s = &h->s;
-
- MPV_decode_defaults(s);
-
- s->avctx = avctx;
- common_init(h);
-
- s->out_format = FMT_H264;
- s->workaround_bugs= avctx->workaround_bugs;
-
- // set defaults
-// s->decode_mb= ff_h263_decode_mb;
- s->quarter_sample = 1;
- s->low_delay= 1;
- avctx->pix_fmt= PIX_FMT_YUV420P;
-
- decode_init_vlc();
-
- if(avctx->extradata_size > 0 && avctx->extradata &&
- *(char *)avctx->extradata == 1){
- h->is_avc = 1;
- h->got_avcC = 0;
- } else {
- h->is_avc = 0;
- }
-
- h->thread_context[0] = h;
- return 0;
-}
-
-static int frame_start(H264Context *h){
- MpegEncContext * const s = &h->s;
- int i;
-
- if(MPV_frame_start(s, s->avctx) < 0)
- return -1;
- ff_er_frame_start(s);
- /*
- * MPV_frame_start uses pict_type to derive key_frame.
- * This is incorrect for H.264; IDR markings must be used.
- * Zero here; IDR markings per slice in frame or fields are OR'd in later.
- * See decode_nal_units().
- */
- s->current_picture_ptr->key_frame= 0;
-
- assert(s->linesize && s->uvlinesize);
-
- for(i=0; i<16; i++){
- h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
- h->block_offset[24+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->linesize*((scan8[i] - scan8[0])>>3);
- }
- for(i=0; i<4; i++){
- h->block_offset[16+i]=
- h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
- h->block_offset[24+16+i]=
- h->block_offset[24+20+i]= 4*((scan8[i] - scan8[0])&7) + 8*s->uvlinesize*((scan8[i] - scan8[0])>>3);
- }
-
- /* can't be in alloc_tables because linesize isn't known there.
- * FIXME: redo bipred weight to not require extra buffer? */
- for(i = 0; i < s->avctx->thread_count; i++)
- if(!h->thread_context[i]->s.obmc_scratchpad)
- h->thread_context[i]->s.obmc_scratchpad = av_malloc(16*2*s->linesize + 8*2*s->uvlinesize);
-
- /* some macroblocks will be accessed before they're available */
- if(FRAME_MBAFF || s->avctx->thread_count > 1)
- memset(h->slice_table, -1, (s->mb_height*s->mb_stride-1) * sizeof(uint8_t));
-
-// s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
- return 0;
-}
-
-static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int simple){
- MpegEncContext * const s = &h->s;
- int i;
-
- src_y -= linesize;
- src_cb -= uvlinesize;
- src_cr -= uvlinesize;
-
- // There are two lines saved, the line above the the top macroblock of a pair,
- // and the line above the bottom macroblock
- h->left_border[0]= h->top_borders[0][s->mb_x][15];
- for(i=1; i<17; i++){
- h->left_border[i]= src_y[15+i* linesize];
- }
-
- *(uint64_t*)(h->top_borders[0][s->mb_x]+0)= *(uint64_t*)(src_y + 16*linesize);
- *(uint64_t*)(h->top_borders[0][s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
-
- if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- h->left_border[17 ]= h->top_borders[0][s->mb_x][16+7];
- h->left_border[17+9]= h->top_borders[0][s->mb_x][24+7];
- for(i=1; i<9; i++){
- h->left_border[i+17 ]= src_cb[7+i*uvlinesize];
- h->left_border[i+17+9]= src_cr[7+i*uvlinesize];
- }
- *(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
- *(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
- }
-}
-
-static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg, int simple){
- MpegEncContext * const s = &h->s;
- int temp8, i;
- uint64_t temp64;
- int deblock_left;
- int deblock_top;
- int mb_xy;
-
- if(h->deblocking_filter == 2) {
- mb_xy = s->mb_x + s->mb_y*s->mb_stride;
- deblock_left = h->slice_table[mb_xy] == h->slice_table[mb_xy - 1];
- deblock_top = h->slice_table[mb_xy] == h->slice_table[h->top_mb_xy];
- } else {
- deblock_left = (s->mb_x > 0);
- deblock_top = (s->mb_y > 0);
- }
-
- src_y -= linesize + 1;
- src_cb -= uvlinesize + 1;
- src_cr -= uvlinesize + 1;
-
-#define XCHG(a,b,t,xchg)\
-t= a;\
-if(xchg)\
- a= b;\
-b= t;
-
- if(deblock_left){
- for(i = !deblock_top; i<17; i++){
- XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
- }
- }
-
- if(deblock_top){
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
- if(s->mb_x+1 < s->mb_width){
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1);
- }
- }
-
- if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- if(deblock_left){
- for(i = !deblock_top; i<9; i++){
- XCHG(h->left_border[i+17 ], src_cb[i*uvlinesize], temp8, xchg);
- XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg);
- }
- }
- if(deblock_top){
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
- }
- }
-}
-
-static inline void backup_pair_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){
- MpegEncContext * const s = &h->s;
- int i;
-
- src_y -= 2 * linesize;
- src_cb -= 2 * uvlinesize;
- src_cr -= 2 * uvlinesize;
-
- // There are two lines saved, the line above the the top macroblock of a pair,
- // and the line above the bottom macroblock
- h->left_border[0]= h->top_borders[0][s->mb_x][15];
- h->left_border[1]= h->top_borders[1][s->mb_x][15];
- for(i=2; i<34; i++){
- h->left_border[i]= src_y[15+i* linesize];
- }
-
- *(uint64_t*)(h->top_borders[0][s->mb_x]+0)= *(uint64_t*)(src_y + 32*linesize);
- *(uint64_t*)(h->top_borders[0][s->mb_x]+8)= *(uint64_t*)(src_y +8+32*linesize);
- *(uint64_t*)(h->top_borders[1][s->mb_x]+0)= *(uint64_t*)(src_y + 33*linesize);
- *(uint64_t*)(h->top_borders[1][s->mb_x]+8)= *(uint64_t*)(src_y +8+33*linesize);
-
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- h->left_border[34 ]= h->top_borders[0][s->mb_x][16+7];
- h->left_border[34+ 1]= h->top_borders[1][s->mb_x][16+7];
- h->left_border[34+18 ]= h->top_borders[0][s->mb_x][24+7];
- h->left_border[34+18+1]= h->top_borders[1][s->mb_x][24+7];
- for(i=2; i<18; i++){
- h->left_border[i+34 ]= src_cb[7+i*uvlinesize];
- h->left_border[i+34+18]= src_cr[7+i*uvlinesize];
- }
- *(uint64_t*)(h->top_borders[0][s->mb_x]+16)= *(uint64_t*)(src_cb+16*uvlinesize);
- *(uint64_t*)(h->top_borders[0][s->mb_x]+24)= *(uint64_t*)(src_cr+16*uvlinesize);
- *(uint64_t*)(h->top_borders[1][s->mb_x]+16)= *(uint64_t*)(src_cb+17*uvlinesize);
- *(uint64_t*)(h->top_borders[1][s->mb_x]+24)= *(uint64_t*)(src_cr+17*uvlinesize);
- }
-}
-
-static inline void xchg_pair_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){
- MpegEncContext * const s = &h->s;
- int temp8, i;
- uint64_t temp64;
- int deblock_left = (s->mb_x > 0);
- int deblock_top = (s->mb_y > 1);
-
- tprintf(s->avctx, "xchg_pair_border: src_y:%p src_cb:%p src_cr:%p ls:%d uvls:%d\n", src_y, src_cb, src_cr, linesize, uvlinesize);
-
- src_y -= 2 * linesize + 1;
- src_cb -= 2 * uvlinesize + 1;
- src_cr -= 2 * uvlinesize + 1;
-
-#define XCHG(a,b,t,xchg)\
-t= a;\
-if(xchg)\
- a= b;\
-b= t;
-
- if(deblock_left){
- for(i = (!deblock_top)<<1; i<34; i++){
- XCHG(h->left_border[i ], src_y [i* linesize], temp8, xchg);
- }
- }
-
- if(deblock_top){
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+0), *(uint64_t*)(src_y +1 +linesize), temp64, xchg);
- XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+8), *(uint64_t*)(src_y +9 +linesize), temp64, 1);
- if(s->mb_x+1 < s->mb_width){
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x+1]), *(uint64_t*)(src_y +17), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x+1]), *(uint64_t*)(src_y +17 +linesize), temp64, 1);
- }
- }
-
- if(!ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- if(deblock_left){
- for(i = (!deblock_top) << 1; i<18; i++){
- XCHG(h->left_border[i+34 ], src_cb[i*uvlinesize], temp8, xchg);
- XCHG(h->left_border[i+34+18], src_cr[i*uvlinesize], temp8, xchg);
- }
- }
- if(deblock_top){
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[0][s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+16), *(uint64_t*)(src_cb+1 +uvlinesize), temp64, 1);
- XCHG(*(uint64_t*)(h->top_borders[1][s->mb_x]+24), *(uint64_t*)(src_cr+1 +uvlinesize), temp64, 1);
- }
- }
-}
-
-static av_always_inline void hl_decode_mb_internal(H264Context *h, int simple){
- MpegEncContext * const s = &h->s;
- const int mb_x= s->mb_x;
- const int mb_y= s->mb_y;
- const int mb_xy= mb_x + mb_y*s->mb_stride;
- const int mb_type= s->current_picture.mb_type[mb_xy];
- uint8_t *dest_y, *dest_cb, *dest_cr;
- int linesize, uvlinesize /*dct_offset*/;
- int i;
- int *block_offset = &h->block_offset[0];
- const unsigned int bottom = mb_y & 1;
- const int transform_bypass = (s->qscale == 0 && h->sps.transform_bypass), is_h264 = (simple || s->codec_id == CODEC_ID_H264);
- void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
- void (*idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
-
- dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
- dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
- dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
-
- s->dsp.prefetch(dest_y + (s->mb_x&3)*4*s->linesize + 64, s->linesize, 4);
- s->dsp.prefetch(dest_cb + (s->mb_x&7)*s->uvlinesize + 64, dest_cr - dest_cb, 2);
-
- if (!simple && MB_FIELD) {
- linesize = h->mb_linesize = s->linesize * 2;
- uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
- block_offset = &h->block_offset[24];
- if(mb_y&1){ //FIXME move out of this func?
- dest_y -= s->linesize*15;
- dest_cb-= s->uvlinesize*7;
- dest_cr-= s->uvlinesize*7;
- }
- if(FRAME_MBAFF) {
- int list;
- for(list=0; list<h->list_count; list++){
- if(!USES_LIST(mb_type, list))
- continue;
- if(IS_16X16(mb_type)){
- int8_t *ref = &h->ref_cache[list][scan8[0]];
- fill_rectangle(ref, 4, 4, 8, 16+*ref^(s->mb_y&1), 1);
- }else{
- for(i=0; i<16; i+=4){
- //FIXME can refs be smaller than 8x8 when !direct_8x8_inference ?
- int ref = h->ref_cache[list][scan8[i]];
- if(ref >= 0)
- fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2, 8, 16+ref^(s->mb_y&1), 1);
- }
- }
- }
- }
- } else {
- linesize = h->mb_linesize = s->linesize;
- uvlinesize = h->mb_uvlinesize = s->uvlinesize;
-// dct_offset = s->linesize * 16;
- }
-
- if(transform_bypass){
- idct_dc_add =
- idct_add = IS_8x8DCT(mb_type) ? s->dsp.add_pixels8 : s->dsp.add_pixels4;
- }else if(IS_8x8DCT(mb_type)){
- idct_dc_add = s->dsp.h264_idct8_dc_add;
- idct_add = s->dsp.h264_idct8_add;
- }else{
- idct_dc_add = s->dsp.h264_idct_dc_add;
- idct_add = s->dsp.h264_idct_add;
- }
-
- if(!simple && FRAME_MBAFF && h->deblocking_filter && IS_INTRA(mb_type)
- && (!bottom || !IS_INTRA(s->current_picture.mb_type[mb_xy-s->mb_stride]))){
- int mbt_y = mb_y&~1;
- uint8_t *top_y = s->current_picture.data[0] + (mbt_y * 16* s->linesize ) + mb_x * 16;
- uint8_t *top_cb = s->current_picture.data[1] + (mbt_y * 8 * s->uvlinesize) + mb_x * 8;
- uint8_t *top_cr = s->current_picture.data[2] + (mbt_y * 8 * s->uvlinesize) + mb_x * 8;
- xchg_pair_border(h, top_y, top_cb, top_cr, s->linesize, s->uvlinesize, 1);
- }
-
- if (!simple && IS_INTRA_PCM(mb_type)) {
- unsigned int x, y;
-
- // The pixels are stored in h->mb array in the same order as levels,
- // copy them in output in the correct order.
- for(i=0; i<16; i++) {
- for (y=0; y<4; y++) {
- for (x=0; x<4; x++) {
- *(dest_y + block_offset[i] + y*linesize + x) = h->mb[i*16+y*4+x];
- }
- }
- }
- for(i=16; i<16+4; i++) {
- for (y=0; y<4; y++) {
- for (x=0; x<4; x++) {
- *(dest_cb + block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x];
- }
- }
- }
- for(i=20; i<20+4; i++) {
- for (y=0; y<4; y++) {
- for (x=0; x<4; x++) {
- *(dest_cr + block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x];
- }
- }
- }
- } else {
- if(IS_INTRA(mb_type)){
- if(h->deblocking_filter && (simple || !FRAME_MBAFF))
- xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1, simple);
-
- if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
- h->hpc.pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
- }
-
- if(IS_INTRA4x4(mb_type)){
- if(simple || !s->encoding){
- if(IS_8x8DCT(mb_type)){
- for(i=0; i<16; i+=4){
- uint8_t * const ptr= dest_y + block_offset[i];
- const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
- const int nnz = h->non_zero_count_cache[ scan8[i] ];
- h->hpc.pred8x8l[ dir ](ptr, (h->topleft_samples_available<<i)&0x8000,
- (h->topright_samples_available<<i)&0x4000, linesize);
- if(nnz){
- if(nnz == 1 && h->mb[i*16])
- idct_dc_add(ptr, h->mb + i*16, linesize);
- else
- idct_add(ptr, h->mb + i*16, linesize);
- }
- }
- }else
- for(i=0; i<16; i++){
- uint8_t * const ptr= dest_y + block_offset[i];
- uint8_t *topright;
- const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
- int nnz, tr;
-
- if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
- const int topright_avail= (h->topright_samples_available<<i)&0x8000;
- assert(mb_y || linesize <= block_offset[i]);
- if(!topright_avail){
- tr= ptr[3 - linesize]*0x01010101;
- topright= (uint8_t*) &tr;
- }else
- topright= ptr + 4 - linesize;
- }else
- topright= NULL;
-
- h->hpc.pred4x4[ dir ](ptr, topright, linesize);
- nnz = h->non_zero_count_cache[ scan8[i] ];
- if(nnz){
- if(is_h264){
- if(nnz == 1 && h->mb[i*16])
- idct_dc_add(ptr, h->mb + i*16, linesize);
- else
- idct_add(ptr, h->mb + i*16, linesize);
- }else
- svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
- }
- }
- }
- }else{
- h->hpc.pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
- if(is_h264){
- if(!transform_bypass)
- h264_luma_dc_dequant_idct_c(h->mb, s->qscale, h->dequant4_coeff[0][s->qscale][0]);
- }else
- svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
- }
- if(h->deblocking_filter && (simple || !FRAME_MBAFF))
- xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0, simple);
- }else if(is_h264){
- hl_motion(h, dest_y, dest_cb, dest_cr,
- s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
- s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
- s->dsp.weight_h264_pixels_tab, s->dsp.biweight_h264_pixels_tab);
- }
-
-
- if(!IS_INTRA4x4(mb_type)){
- if(is_h264){
- if(IS_INTRA16x16(mb_type)){
- for(i=0; i<16; i++){
- if(h->non_zero_count_cache[ scan8[i] ])
- idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
- else if(h->mb[i*16])
- idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
- }
- }else{
- const int di = IS_8x8DCT(mb_type) ? 4 : 1;
- for(i=0; i<16; i+=di){
- int nnz = h->non_zero_count_cache[ scan8[i] ];
- if(nnz){
- if(nnz==1 && h->mb[i*16])
- idct_dc_add(dest_y + block_offset[i], h->mb + i*16, linesize);
- else
- idct_add(dest_y + block_offset[i], h->mb + i*16, linesize);
- }
- }
- }
- }else{
- for(i=0; i<16; i++){
- if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
- uint8_t * const ptr= dest_y + block_offset[i];
- svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
- }
- }
- }
- }
-
- if(simple || !ENABLE_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
- uint8_t *dest[2] = {dest_cb, dest_cr};
- if(transform_bypass){
- idct_add = idct_dc_add = s->dsp.add_pixels4;
- }else{
- idct_add = s->dsp.h264_idct_add;
- idct_dc_add = s->dsp.h264_idct_dc_add;
- chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp[0], h->dequant4_coeff[IS_INTRA(mb_type) ? 1:4][h->chroma_qp[0]][0]);
- chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp[1], h->dequant4_coeff[IS_INTRA(mb_type) ? 2:5][h->chroma_qp[1]][0]);
- }
- if(is_h264){
- for(i=16; i<16+8; i++){
- if(h->non_zero_count_cache[ scan8[i] ])
- idct_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
- else if(h->mb[i*16])
- idct_dc_add(dest[(i&4)>>2] + block_offset[i], h->mb + i*16, uvlinesize);
- }
- }else{
- for(i=16; i<16+8; i++){
- if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
- uint8_t * const ptr= dest[(i&4)>>2] + block_offset[i];
- svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
- }
- }
- }
- }
- }
- if(h->deblocking_filter) {
- if (!simple && FRAME_MBAFF) {
- //FIXME try deblocking one mb at a time?
- // the reduction in load/storing mvs and such might outweigh the extra backup/xchg_border
- const int mb_y = s->mb_y - 1;
- uint8_t *pair_dest_y, *pair_dest_cb, *pair_dest_cr;
- const int mb_xy= mb_x + mb_y*s->mb_stride;
- const int mb_type_top = s->current_picture.mb_type[mb_xy];
- const int mb_type_bottom= s->current_picture.mb_type[mb_xy+s->mb_stride];
- if (!bottom) return;
- pair_dest_y = s->current_picture.data[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
- pair_dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
- pair_dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
-
- if(IS_INTRA(mb_type_top | mb_type_bottom))
- xchg_pair_border(h, pair_dest_y, pair_dest_cb, pair_dest_cr, s->linesize, s->uvlinesize, 0);
-
- backup_pair_border(h, pair_dest_y, pair_dest_cb, pair_dest_cr, s->linesize, s->uvlinesize);
- // deblock a pair
- // top
- s->mb_y--;
- tprintf(h->s.avctx, "call mbaff filter_mb mb_x:%d mb_y:%d pair_dest_y = %p, dest_y = %p\n", mb_x, mb_y, pair_dest_y, dest_y);
- fill_caches(h, mb_type_top, 1); //FIXME don't fill stuff which isn't used by filter_mb
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy]);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy]);
- filter_mb(h, mb_x, mb_y, pair_dest_y, pair_dest_cb, pair_dest_cr, linesize, uvlinesize);
- // bottom
- s->mb_y++;
- tprintf(h->s.avctx, "call mbaff filter_mb\n");
- fill_caches(h, mb_type_bottom, 1); //FIXME don't fill stuff which isn't used by filter_mb
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->current_picture.qscale_table[mb_xy+s->mb_stride]);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->current_picture.qscale_table[mb_xy+s->mb_stride]);
- filter_mb(h, mb_x, mb_y+1, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
- } else {
- tprintf(h->s.avctx, "call filter_mb\n");
- backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, simple);
- fill_caches(h, mb_type, 1); //FIXME don't fill stuff which isn't used by filter_mb
- filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
- }
- }
-}
-
-/**
- * Process a macroblock; this case avoids checks for expensive uncommon cases.
- */
-static void hl_decode_mb_simple(H264Context *h){
- hl_decode_mb_internal(h, 1);
-}
-
-/**
- * Process a macroblock; this handles edge cases, such as interlacing.
- */
-static void av_noinline hl_decode_mb_complex(H264Context *h){
- hl_decode_mb_internal(h, 0);
-}
-
-static void hl_decode_mb(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_x= s->mb_x;
- const int mb_y= s->mb_y;
- const int mb_xy= mb_x + mb_y*s->mb_stride;
- const int mb_type= s->current_picture.mb_type[mb_xy];
- int is_complex = FRAME_MBAFF || MB_FIELD || IS_INTRA_PCM(mb_type) || s->codec_id != CODEC_ID_H264 || (ENABLE_GRAY && (s->flags&CODEC_FLAG_GRAY)) || s->encoding;
-
- if(!s->decode)
- return;
-
- if (is_complex)
- hl_decode_mb_complex(h);
- else hl_decode_mb_simple(h);
-}
-
-static void pic_as_field(Picture *pic, const int parity){
- int i;
- for (i = 0; i < 4; ++i) {
- if (parity == PICT_BOTTOM_FIELD)
- pic->data[i] += pic->linesize[i];
- pic->reference = parity;
- pic->linesize[i] *= 2;
- }
-}
-
-static int split_field_copy(Picture *dest, Picture *src,
- int parity, int id_add){
- int match = !!(src->reference & parity);
-
- if (match) {
- *dest = *src;
- pic_as_field(dest, parity);
- dest->pic_id *= 2;
- dest->pic_id += id_add;
- }
-
- return match;
-}
-
-/**
- * Split one reference list into field parts, interleaving by parity
- * as per H.264 spec section 8.2.4.2.5. Output fields have their data pointers
- * set to look at the actual start of data for that field.
- *
- * @param dest output list
- * @param dest_len maximum number of fields to put in dest
- * @param src the source reference list containing fields and/or field pairs
- * (aka short_ref/long_ref, or
- * refFrameListXShortTerm/refFrameListLongTerm in spec-speak)
- * @param src_len number of Picture's in source (pairs and unmatched fields)
- * @param parity the parity of the picture being decoded/needing
- * these ref pics (PICT_{TOP,BOTTOM}_FIELD)
- * @return number of fields placed in dest
- */
-static int split_field_half_ref_list(Picture *dest, int dest_len,
- Picture *src, int src_len, int parity){
- int same_parity = 1;
- int same_i = 0;
- int opp_i = 0;
- int out_i;
- int field_output;
-
- for (out_i = 0; out_i < dest_len; out_i += field_output) {
- if (same_parity && same_i < src_len) {
- field_output = split_field_copy(dest + out_i, src + same_i,
- parity, 1);
- same_parity = !field_output;
- same_i++;
-
- } else if (opp_i < src_len) {
- field_output = split_field_copy(dest + out_i, src + opp_i,
- PICT_FRAME - parity, 0);
- same_parity = field_output;
- opp_i++;
-
- } else {
- break;
- }
- }
-
- return out_i;
-}
-
-/**
- * Split the reference frame list into a reference field list.
- * This implements H.264 spec 8.2.4.2.5 for a combined input list.
- * The input list contains both reference field pairs and
- * unmatched reference fields; it is ordered as spec describes
- * RefPicListX for frames in 8.2.4.2.1 and 8.2.4.2.3, except that
- * unmatched field pairs are also present. Conceptually this is equivalent
- * to concatenation of refFrameListXShortTerm with refFrameListLongTerm.
- *
- * @param dest output reference list where ordered fields are to be placed
- * @param dest_len max number of fields to place at dest
- * @param src source reference list, as described above
- * @param src_len number of pictures (pairs and unmatched fields) in src
- * @param parity parity of field being currently decoded
- * (one of PICT_{TOP,BOTTOM}_FIELD)
- * @param long_i index into src array that holds first long reference picture,
- * or src_len if no long refs present.
- */
-static int split_field_ref_list(Picture *dest, int dest_len,
- Picture *src, int src_len,
- int parity, int long_i){
-
- int i = split_field_half_ref_list(dest, dest_len, src, long_i, parity);
- dest += i;
- dest_len -= i;
-
- i += split_field_half_ref_list(dest, dest_len, src + long_i,
- src_len - long_i, parity);
- return i;
-}
-
-/**
- * fills the default_ref_list.
- */
-static int fill_default_ref_list(H264Context *h){
- MpegEncContext * const s = &h->s;
- int i;
- int smallest_poc_greater_than_current = -1;
- int structure_sel;
- Picture sorted_short_ref[32];
- Picture field_entry_list[2][32];
- Picture *frame_list[2];
-
- if (FIELD_PICTURE) {
- structure_sel = PICT_FRAME;
- frame_list[0] = field_entry_list[0];
- frame_list[1] = field_entry_list[1];
- } else {
- structure_sel = 0;
- frame_list[0] = h->default_ref_list[0];
- frame_list[1] = h->default_ref_list[1];
- }
-
- if(h->slice_type==B_TYPE){
- int list;
- int len[2];
- int short_len[2];
- int out_i;
- int limit= INT_MIN;
-
- /* sort frame according to poc in B slice */
- for(out_i=0; out_i<h->short_ref_count; out_i++){
- int best_i=INT_MIN;
- int best_poc=INT_MAX;
-
- for(i=0; i<h->short_ref_count; i++){
- const int poc= h->short_ref[i]->poc;
- if(poc > limit && poc < best_poc){
- best_poc= poc;
- best_i= i;
- }
- }
-
- assert(best_i != INT_MIN);
-
- limit= best_poc;
- sorted_short_ref[out_i]= *h->short_ref[best_i];
- tprintf(h->s.avctx, "sorted poc: %d->%d poc:%d fn:%d\n", best_i, out_i, sorted_short_ref[out_i].poc, sorted_short_ref[out_i].frame_num);
- if (-1 == smallest_poc_greater_than_current) {
- if (h->short_ref[best_i]->poc >= s->current_picture_ptr->poc) {
- smallest_poc_greater_than_current = out_i;
- }
- }
- }
-
- tprintf(h->s.avctx, "current poc: %d, smallest_poc_greater_than_current: %d\n", s->current_picture_ptr->poc, smallest_poc_greater_than_current);
-
- // find the largest poc
- for(list=0; list<2; list++){
- int index = 0;
- int j= -99;
- int step= list ? -1 : 1;
-
- for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++, j+=step) {
- int sel;
- while(j<0 || j>= h->short_ref_count){
- if(j != -99 && step == (list ? -1 : 1))
- return -1;
- step = -step;
- j= smallest_poc_greater_than_current + (step>>1);
- }
- sel = sorted_short_ref[j].reference | structure_sel;
- if(sel != PICT_FRAME) continue;
- frame_list[list][index ]= sorted_short_ref[j];
- frame_list[list][index++].pic_id= sorted_short_ref[j].frame_num;
- }
- short_len[list] = index;
-
- for(i = 0; i < 16 && index < h->ref_count[ list ]; i++){
- int sel;
- if(h->long_ref[i] == NULL) continue;
- sel = h->long_ref[i]->reference | structure_sel;
- if(sel != PICT_FRAME) continue;
-
- frame_list[ list ][index ]= *h->long_ref[i];
- frame_list[ list ][index++].pic_id= i;;
- }
- len[list] = index;
-
- if(list && (smallest_poc_greater_than_current<=0 || smallest_poc_greater_than_current>=h->short_ref_count) && (1 < index)){
- // swap the two first elements of L1 when
- // L0 and L1 are identical
- Picture temp= frame_list[1][0];
- frame_list[1][0] = frame_list[1][1];
- frame_list[1][1] = temp;
- }
-
- }
-
- for(list=0; list<2; list++){
- if (FIELD_PICTURE)
- len[list] = split_field_ref_list(h->default_ref_list[list],
- h->ref_count[list],
- frame_list[list],
- len[list],
- s->picture_structure,
- short_len[list]);
-
- if(len[list] < h->ref_count[ list ])
- memset(&h->default_ref_list[list][len[list]], 0, sizeof(Picture)*(h->ref_count[ list ] - len[list]));
- }
-
-
- }else{
- int index=0;
- int short_len;
- for(i=0; i<h->short_ref_count; i++){
- int sel;
- sel = h->short_ref[i]->reference | structure_sel;
- if(sel != PICT_FRAME) continue;
- frame_list[0][index ]= *h->short_ref[i];
- frame_list[0][index++].pic_id= h->short_ref[i]->frame_num;
- }
- short_len = index;
- for(i = 0; i < 16; i++){
- int sel;
- if(h->long_ref[i] == NULL) continue;
- sel = h->long_ref[i]->reference | structure_sel;
- if(sel != PICT_FRAME) continue;
- frame_list[0][index ]= *h->long_ref[i];
- frame_list[0][index++].pic_id= i;;
- }
-
- if (FIELD_PICTURE)
- index = split_field_ref_list(h->default_ref_list[0],
- h->ref_count[0], frame_list[0],
- index, s->picture_structure,
- short_len);
-
- if(index < h->ref_count[0])
- memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index));
- }
-#ifdef TRACE
- for (i=0; i<h->ref_count[0]; i++) {
- tprintf(h->s.avctx, "List0: %s fn:%d 0x%p\n", (h->default_ref_list[0][i].long_ref ? "LT" : "ST"), h->default_ref_list[0][i].pic_id, h->default_ref_list[0][i].data[0]);
- }
- if(h->slice_type==B_TYPE){
- for (i=0; i<h->ref_count[1]; i++) {
- tprintf(h->s.avctx, "List1: %s fn:%d 0x%p\n", (h->default_ref_list[1][i].long_ref ? "LT" : "ST"), h->default_ref_list[1][i].pic_id, h->default_ref_list[0][i].data[0]);
- }
- }
-#endif
- return 0;
-}
-
-static void print_short_term(H264Context *h);
-static void print_long_term(H264Context *h);
-
-/**
- * Extract structure information about the picture described by pic_num in
- * the current decoding context (frame or field). Note that pic_num is
- * picture number without wrapping (so, 0<=pic_num<max_pic_num).
- * @param pic_num picture number for which to extract structure information
- * @param structure one of PICT_XXX describing structure of picture
- * with pic_num
- * @return frame number (short term) or long term index of picture
- * described by pic_num
- */
-static int pic_num_extract(H264Context *h, int pic_num, int *structure){
- MpegEncContext * const s = &h->s;
-
- *structure = s->picture_structure;
- if(FIELD_PICTURE){
- if (!(pic_num & 1))
- /* opposite field */
- *structure ^= PICT_FRAME;
- pic_num >>= 1;
- }
-
- return pic_num;
-}
-
-static int decode_ref_pic_list_reordering(H264Context *h){
- MpegEncContext * const s = &h->s;
- int list, index, pic_structure;
-
- print_short_term(h);
- print_long_term(h);
- if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move before func
-
- for(list=0; list<h->list_count; list++){
- memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
-
- if(get_bits1(&s->gb)){
- int pred= h->curr_pic_num;
-
- for(index=0; ; index++){
- unsigned int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
- unsigned int pic_id;
- int i;
- Picture *ref = NULL;
-
- if(reordering_of_pic_nums_idc==3)
- break;
-
- if(index >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
- return -1;
- }
-
- if(reordering_of_pic_nums_idc<3){
- if(reordering_of_pic_nums_idc<2){
- const unsigned int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
- int frame_num;
-
- if(abs_diff_pic_num > h->max_pic_num){
- av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
- return -1;
- }
-
- if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
- else pred+= abs_diff_pic_num;
- pred &= h->max_pic_num - 1;
-
- frame_num = pic_num_extract(h, pred, &pic_structure);
-
- for(i= h->short_ref_count-1; i>=0; i--){
- ref = h->short_ref[i];
- assert(ref->reference);
- assert(!ref->long_ref);
- if(ref->data[0] != NULL &&
- ref->frame_num == frame_num &&
- (ref->reference & pic_structure) &&
- ref->long_ref == 0) // ignore non existing pictures by testing data[0] pointer
- break;
- }
- if(i>=0)
- ref->pic_id= pred;
- }else{
- int long_idx;
- pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
-
- long_idx= pic_num_extract(h, pic_id, &pic_structure);
-
- if(long_idx>31){
- av_log(h->s.avctx, AV_LOG_ERROR, "long_term_pic_idx overflow\n");
- return -1;
- }
- ref = h->long_ref[long_idx];
- assert(!(ref && !ref->reference));
- if(ref && (ref->reference & pic_structure)){
- ref->pic_id= pic_id;
- assert(ref->long_ref);
- i=0;
- }else{
- i=-1;
- }
- }
-
- if (i < 0) {
- av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
- memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
- } else {
- for(i=index; i+1<h->ref_count[list]; i++){
- if(ref->long_ref == h->ref_list[list][i].long_ref && ref->pic_id == h->ref_list[list][i].pic_id)
- break;
- }
- for(; i > index; i--){
- h->ref_list[list][i]= h->ref_list[list][i-1];
- }
- h->ref_list[list][index]= *ref;
- if (FIELD_PICTURE){
- pic_as_field(&h->ref_list[list][index], pic_structure);
- }
- }
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
- return -1;
- }
- }
- }
- }
- for(list=0; list<h->list_count; list++){
- for(index= 0; index < h->ref_count[list]; index++){
- if(!h->ref_list[list][index].data[0])
- h->ref_list[list][index]= s->current_picture;
- }
- }
-
- if(h->slice_type==B_TYPE && !h->direct_spatial_mv_pred)
- direct_dist_scale_factor(h);
- direct_ref_list_init(h);
- return 0;
-}
-
-static void fill_mbaff_ref_list(H264Context *h){
- int list, i, j;
- for(list=0; list<2; list++){ //FIXME try list_count
- for(i=0; i<h->ref_count[list]; i++){
- Picture *frame = &h->ref_list[list][i];
- Picture *field = &h->ref_list[list][16+2*i];
- field[0] = *frame;
- for(j=0; j<3; j++)
- field[0].linesize[j] <<= 1;
- field[0].reference = PICT_TOP_FIELD;
- field[1] = field[0];
- for(j=0; j<3; j++)
- field[1].data[j] += frame->linesize[j];
- field[1].reference = PICT_BOTTOM_FIELD;
-
- h->luma_weight[list][16+2*i] = h->luma_weight[list][16+2*i+1] = h->luma_weight[list][i];
- h->luma_offset[list][16+2*i] = h->luma_offset[list][16+2*i+1] = h->luma_offset[list][i];
- for(j=0; j<2; j++){
- h->chroma_weight[list][16+2*i][j] = h->chroma_weight[list][16+2*i+1][j] = h->chroma_weight[list][i][j];
- h->chroma_offset[list][16+2*i][j] = h->chroma_offset[list][16+2*i+1][j] = h->chroma_offset[list][i][j];
- }
- }
- }
- for(j=0; j<h->ref_count[1]; j++){
- for(i=0; i<h->ref_count[0]; i++)
- h->implicit_weight[j][16+2*i] = h->implicit_weight[j][16+2*i+1] = h->implicit_weight[j][i];
- memcpy(h->implicit_weight[16+2*j], h->implicit_weight[j], sizeof(*h->implicit_weight));
- memcpy(h->implicit_weight[16+2*j+1], h->implicit_weight[j], sizeof(*h->implicit_weight));
- }
-}
-
-static int pred_weight_table(H264Context *h){
- MpegEncContext * const s = &h->s;
- int list, i;
- int luma_def, chroma_def;
-
- h->use_weight= 0;
- h->use_weight_chroma= 0;
- h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
- h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
- luma_def = 1<<h->luma_log2_weight_denom;
- chroma_def = 1<<h->chroma_log2_weight_denom;
-
- for(list=0; list<2; list++){
- for(i=0; i<h->ref_count[list]; i++){
- int luma_weight_flag, chroma_weight_flag;
-
- luma_weight_flag= get_bits1(&s->gb);
- if(luma_weight_flag){
- h->luma_weight[list][i]= get_se_golomb(&s->gb);
- h->luma_offset[list][i]= get_se_golomb(&s->gb);
- if( h->luma_weight[list][i] != luma_def
- || h->luma_offset[list][i] != 0)
- h->use_weight= 1;
- }else{
- h->luma_weight[list][i]= luma_def;
- h->luma_offset[list][i]= 0;
- }
-
- chroma_weight_flag= get_bits1(&s->gb);
- if(chroma_weight_flag){
- int j;
- for(j=0; j<2; j++){
- h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
- h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
- if( h->chroma_weight[list][i][j] != chroma_def
- || h->chroma_offset[list][i][j] != 0)
- h->use_weight_chroma= 1;
- }
- }else{
- int j;
- for(j=0; j<2; j++){
- h->chroma_weight[list][i][j]= chroma_def;
- h->chroma_offset[list][i][j]= 0;
- }
- }
- }
- if(h->slice_type != B_TYPE) break;
- }
- h->use_weight= h->use_weight || h->use_weight_chroma;
- return 0;
-}
-
-static void implicit_weight_table(H264Context *h){
- MpegEncContext * const s = &h->s;
- int ref0, ref1;
- int cur_poc = s->current_picture_ptr->poc;
-
- if( h->ref_count[0] == 1 && h->ref_count[1] == 1
- && h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2*cur_poc){
- h->use_weight= 0;
- h->use_weight_chroma= 0;
- return;
- }
-
- h->use_weight= 2;
- h->use_weight_chroma= 2;
- h->luma_log2_weight_denom= 5;
- h->chroma_log2_weight_denom= 5;
-
- for(ref0=0; ref0 < h->ref_count[0]; ref0++){
- int poc0 = h->ref_list[0][ref0].poc;
- for(ref1=0; ref1 < h->ref_count[1]; ref1++){
- int poc1 = h->ref_list[1][ref1].poc;
- int td = av_clip(poc1 - poc0, -128, 127);
- if(td){
- int tb = av_clip(cur_poc - poc0, -128, 127);
- int tx = (16384 + (FFABS(td) >> 1)) / td;
- int dist_scale_factor = av_clip((tb*tx + 32) >> 6, -1024, 1023) >> 2;
- if(dist_scale_factor < -64 || dist_scale_factor > 128)
- h->implicit_weight[ref0][ref1] = 32;
- else
- h->implicit_weight[ref0][ref1] = 64 - dist_scale_factor;
- }else
- h->implicit_weight[ref0][ref1] = 32;
- }
- }
-}
-
-/**
- * Mark a picture as no longer needed for reference. The refmask
- * argument allows unreferencing of individual fields or the whole frame.
- * If the picture becomes entirely unreferenced, but is being held for
- * display purposes, it is marked as such.
- * @param refmask mask of fields to unreference; the mask is bitwise
- * anded with the reference marking of pic
- * @return non-zero if pic becomes entirely unreferenced (except possibly
- * for display purposes) zero if one of the fields remains in
- * reference
- */
-static inline int unreference_pic(H264Context *h, Picture *pic, int refmask){
- int i;
- if (pic->reference &= refmask) {
- return 0;
- } else {
- if(pic == h->delayed_output_pic)
- pic->reference=DELAYED_PIC_REF;
- else{
- for(i = 0; h->delayed_pic[i]; i++)
- if(pic == h->delayed_pic[i]){
- pic->reference=DELAYED_PIC_REF;
- break;
- }
- }
- return 1;
- }
-}
-
-/**
- * instantaneous decoder refresh.
- */
-static void idr(H264Context *h){
- int i;
-
- for(i=0; i<16; i++){
- if (h->long_ref[i] != NULL) {
- unreference_pic(h, h->long_ref[i], 0);
- h->long_ref[i]= NULL;
- }
- }
- h->long_ref_count=0;
-
- for(i=0; i<h->short_ref_count; i++){
- unreference_pic(h, h->short_ref[i], 0);
- h->short_ref[i]= NULL;
- }
- h->short_ref_count=0;
-}
-
-/* forget old pics after a seek */
-static void flush_dpb(AVCodecContext *avctx){
- H264Context *h= avctx->priv_data;
- int i;
- for(i=0; i<16; i++) {
- if(h->delayed_pic[i])
- h->delayed_pic[i]->reference= 0;
- h->delayed_pic[i]= NULL;
- }
- if(h->delayed_output_pic)
- h->delayed_output_pic->reference= 0;
- h->delayed_output_pic= NULL;
- idr(h);
- if(h->s.current_picture_ptr)
- h->s.current_picture_ptr->reference= 0;
- h->s.first_field= 0;
- ff_mpeg_flush(avctx);
-}
-
-/**
- * Find a Picture in the short term reference list by frame number.
- * @param frame_num frame number to search for
- * @param idx the index into h->short_ref where returned picture is found
- * undefined if no picture found.
- * @return pointer to the found picture, or NULL if no pic with the provided
- * frame number is found
- */
-static Picture * find_short(H264Context *h, int frame_num, int *idx){
- MpegEncContext * const s = &h->s;
- int i;
-
- for(i=0; i<h->short_ref_count; i++){
- Picture *pic= h->short_ref[i];
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
- if(pic->frame_num == frame_num) {
- *idx = i;
- return pic;
- }
- }
- return NULL;
-}
-
-/**
- * Remove a picture from the short term reference list by its index in
- * that list. This does no checking on the provided index; it is assumed
- * to be valid. Other list entries are shifted down.
- * @param i index into h->short_ref of picture to remove.
- */
-static void remove_short_at_index(H264Context *h, int i){
- assert(i > 0 && i < h->short_ref_count);
- h->short_ref[i]= NULL;
- if (--h->short_ref_count)
- memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i)*sizeof(Picture*));
-}
-
-/**
- *
- * @return the removed picture or NULL if an error occurs
- */
-static Picture * remove_short(H264Context *h, int frame_num){
- MpegEncContext * const s = &h->s;
- Picture *pic;
- int i;
-
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
-
- pic = find_short(h, frame_num, &i);
- if (pic)
- remove_short_at_index(h, i);
-
- return pic;
-}
-
-/**
- * Remove a picture from the long term reference list by its index in
- * that list. This does no checking on the provided index; it is assumed
- * to be valid. The removed entry is set to NULL. Other entries are unaffected.
- * @param i index into h->long_ref of picture to remove.
- */
-static void remove_long_at_index(H264Context *h, int i){
- h->long_ref[i]= NULL;
- h->long_ref_count--;
-}
-
-/**
- *
- * @return the removed picture or NULL if an error occurs
- */
-static Picture * remove_long(H264Context *h, int i){
- Picture *pic;
-
- pic= h->long_ref[i];
- if (pic)
- remove_long_at_index(h, i);
-
- return pic;
-}
-
-/**
- * print short term list
- */
-static void print_short_term(H264Context *h) {
- uint32_t i;
- if(h->s.avctx->debug&FF_DEBUG_MMCO) {
- av_log(h->s.avctx, AV_LOG_DEBUG, "short term list:\n");
- for(i=0; i<h->short_ref_count; i++){
- Picture *pic= h->short_ref[i];
- av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
- }
- }
-}
-
-/**
- * print long term list
- */
-static void print_long_term(H264Context *h) {
- uint32_t i;
- if(h->s.avctx->debug&FF_DEBUG_MMCO) {
- av_log(h->s.avctx, AV_LOG_DEBUG, "long term list:\n");
- for(i = 0; i < 16; i++){
- Picture *pic= h->long_ref[i];
- if (pic) {
- av_log(h->s.avctx, AV_LOG_DEBUG, "%d fn:%d poc:%d %p\n", i, pic->frame_num, pic->poc, pic->data[0]);
- }
- }
- }
-}
-
-/**
- * Executes the reference picture marking (memory management control operations).
- */
-static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
- MpegEncContext * const s = &h->s;
- int i, j;
- int current_ref_assigned=0;
- Picture *pic;
-
- if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
- av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
-
- for(i=0; i<mmco_count; i++){
- int structure, frame_num, unref_pic;
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);
-
- switch(mmco[i].opcode){
- case MMCO_SHORT2UNUSED:
- if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref short %d count %d\n", h->mmco[i].short_pic_num, h->short_ref_count);
- frame_num = pic_num_extract(h, mmco[i].short_pic_num, &structure);
- pic = find_short(h, frame_num, &j);
- if (pic) {
- if (unreference_pic(h, pic, structure ^ PICT_FRAME))
- remove_short_at_index(h, j);
- } else if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref short failure\n");
- break;
- case MMCO_SHORT2LONG:
- if (FIELD_PICTURE && mmco[i].long_arg < h->long_ref_count &&
- h->long_ref[mmco[i].long_arg]->frame_num ==
- mmco[i].short_pic_num / 2) {
- /* do nothing, we've already moved this field pair. */
- } else {
- int frame_num = mmco[i].short_pic_num >> FIELD_PICTURE;
-
- pic= remove_long(h, mmco[i].long_arg);
- if(pic) unreference_pic(h, pic, 0);
-
- h->long_ref[ mmco[i].long_arg ]= remove_short(h, frame_num);
- if (h->long_ref[ mmco[i].long_arg ]){
- h->long_ref[ mmco[i].long_arg ]->long_ref=1;
- h->long_ref_count++;
- }
- }
- break;
- case MMCO_LONG2UNUSED:
- j = pic_num_extract(h, mmco[i].long_arg, &structure);
- pic = h->long_ref[j];
- if (pic) {
- if (unreference_pic(h, pic, structure ^ PICT_FRAME))
- remove_long_at_index(h, j);
- } else if(s->avctx->debug&FF_DEBUG_MMCO)
- av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: unref long failure\n");
- break;
- case MMCO_LONG:
- unref_pic = 1;
- if (FIELD_PICTURE && !s->first_field) {
- if (h->long_ref[mmco[i].long_arg] == s->current_picture_ptr) {
- /* Just mark second field as referenced */
- unref_pic = 0;
- } else if (s->current_picture_ptr->reference) {
- /* First field in pair is in short term list or
- * at a different long term index.
- * This is not allowed; see 7.4.3, notes 2 and 3.
- * Report the problem and keep the pair where it is,
- * and mark this field valid.
- */
- av_log(h->s.avctx, AV_LOG_ERROR,
- "illegal long term reference assignment for second "
- "field in complementary field pair (first field is "
- "short term or has non-matching long index)\n");
- unref_pic = 0;
- }
- }
-
- if (unref_pic) {
- pic= remove_long(h, mmco[i].long_arg);
- if(pic) unreference_pic(h, pic, 0);
-
- h->long_ref[ mmco[i].long_arg ]= s->current_picture_ptr;
- h->long_ref[ mmco[i].long_arg ]->long_ref=1;
- h->long_ref_count++;
- }
-
- s->current_picture_ptr->reference |= s->picture_structure;
- current_ref_assigned=1;
- break;
- case MMCO_SET_MAX_LONG:
- assert(mmco[i].long_arg <= 16);
- // just remove the long term which index is greater than new max
- for(j = mmco[i].long_arg; j<16; j++){
- pic = remove_long(h, j);
- if (pic) unreference_pic(h, pic, 0);
- }
- break;
- case MMCO_RESET:
- while(h->short_ref_count){
- pic= remove_short(h, h->short_ref[0]->frame_num);
- if(pic) unreference_pic(h, pic, 0);
- }
- for(j = 0; j < 16; j++) {
- pic= remove_long(h, j);
- if(pic) unreference_pic(h, pic, 0);
- }
- break;
- default: assert(0);
- }
- }
-
- if (!current_ref_assigned && FIELD_PICTURE &&
- !s->first_field && s->current_picture_ptr->reference) {
-
- /* Second field of complementary field pair; the first field of
- * which is already referenced. If short referenced, it
- * should be first entry in short_ref. If not, it must exist
- * in long_ref; trying to put it on the short list here is an
- * error in the encoded bit stream (ref: 7.4.3, NOTE 2 and 3).
- */
- if (h->short_ref_count && h->short_ref[0] == s->current_picture_ptr) {
- /* Just mark the second field valid */
- s->current_picture_ptr->reference = PICT_FRAME;
- } else if (s->current_picture_ptr->long_ref) {
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term reference "
- "assignment for second field "
- "in complementary field pair "
- "(first field is long term)\n");
- } else {
- /*
- * First field in reference, but not in any sensible place on our
- * reference lists. This shouldn't happen unless reference
- * handling somewhere else is wrong.
- */
- assert(0);
- }
- current_ref_assigned = 1;
- }
-
- if(!current_ref_assigned){
- pic= remove_short(h, s->current_picture_ptr->frame_num);
- if(pic){
- unreference_pic(h, pic, 0);
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
- }
-
- if(h->short_ref_count)
- memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
-
- h->short_ref[0]= s->current_picture_ptr;
- h->short_ref[0]->long_ref=0;
- h->short_ref_count++;
- s->current_picture_ptr->reference |= s->picture_structure;
- }
-
- if (h->long_ref_count + h->short_ref_count > h->sps.ref_frame_count){
-
- /* We have too many reference frames, probably due to corrupted
- * stream. Need to discard one frame. Prevents overrun of the
- * short_ref and long_ref buffers.
- */
- av_log(h->s.avctx, AV_LOG_ERROR,
- "number of reference frames exceeds max (probably "
- "corrupt input), discarding one\n");
-
- if (h->long_ref_count) {
- for (i = 0; i < 16; ++i)
- if (h->long_ref[i])
- break;
-
- assert(i < 16);
- pic = h->long_ref[i];
- remove_long_at_index(h, i);
- } else {
- pic = h->short_ref[h->short_ref_count - 1];
- remove_short_at_index(h, h->short_ref_count - 1);
- }
- unreference_pic(h, pic, 0);
- }
-
- print_short_term(h);
- print_long_term(h);
- return 0;
-}
-
-static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){
- MpegEncContext * const s = &h->s;
- int i;
-
- if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
- s->broken_link= get_bits1(gb) -1;
- h->mmco[0].long_arg= get_bits1(gb) - 1; // current_long_term_idx
- if(h->mmco[0].long_arg == -1)
- h->mmco_index= 0;
- else{
- h->mmco[0].opcode= MMCO_LONG;
- h->mmco_index= 1;
- }
- }else{
- if(get_bits1(gb)){ // adaptive_ref_pic_marking_mode_flag
- for(i= 0; i<MAX_MMCO_COUNT; i++) {
- MMCOOpcode opcode= get_ue_golomb(gb);
-
- h->mmco[i].opcode= opcode;
- if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
- h->mmco[i].short_pic_num= (h->curr_pic_num - get_ue_golomb(gb) - 1) & (h->max_pic_num - 1);
-/* if(h->mmco[i].short_pic_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_pic_num ] == NULL){
- av_log(s->avctx, AV_LOG_ERROR, "illegal short ref in memory management control operation %d\n", mmco);
- return -1;
- }*/
- }
- if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
- unsigned int long_arg= get_ue_golomb(gb);
- if(long_arg >= 32 || (long_arg >= 16 && !(opcode == MMCO_LONG2UNUSED && FIELD_PICTURE))){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
- return -1;
- }
- h->mmco[i].long_arg= long_arg;
- }
-
- if(opcode > (unsigned)MMCO_LONG){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal memory management control operation %d\n", opcode);
- return -1;
- }
- if(opcode == MMCO_END)
- break;
- }
- h->mmco_index= i;
- }else{
- assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
-
- if(h->short_ref_count && h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count &&
- !(FIELD_PICTURE && !s->first_field && s->current_picture_ptr->reference)) {
- h->mmco[0].opcode= MMCO_SHORT2UNUSED;
- h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
- h->mmco_index= 1;
- if (FIELD_PICTURE) {
- h->mmco[0].short_pic_num *= 2;
- h->mmco[1].opcode= MMCO_SHORT2UNUSED;
- h->mmco[1].short_pic_num= h->mmco[0].short_pic_num + 1;
- h->mmco_index= 2;
- }
- }else
- h->mmco_index= 0;
- }
- }
-
- return 0;
-}
-
-static int init_poc(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int max_frame_num= 1<<h->sps.log2_max_frame_num;
- int field_poc[2];
-
- if(h->nal_unit_type == NAL_IDR_SLICE){
- h->frame_num_offset= 0;
- }else{
- if(h->frame_num < h->prev_frame_num)
- h->frame_num_offset= h->prev_frame_num_offset + max_frame_num;
- else
- h->frame_num_offset= h->prev_frame_num_offset;
- }
-
- if(h->sps.poc_type==0){
- const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
-
- if(h->nal_unit_type == NAL_IDR_SLICE){
- h->prev_poc_msb=
- h->prev_poc_lsb= 0;
- }
-
- if (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
- h->poc_msb = h->prev_poc_msb + max_poc_lsb;
- else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
- h->poc_msb = h->prev_poc_msb - max_poc_lsb;
- else
- h->poc_msb = h->prev_poc_msb;
-//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
- field_poc[0] =
- field_poc[1] = h->poc_msb + h->poc_lsb;
- if(s->picture_structure == PICT_FRAME)
- field_poc[1] += h->delta_poc_bottom;
- }else if(h->sps.poc_type==1){
- int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
- int i;
-
- if(h->sps.poc_cycle_length != 0)
- abs_frame_num = h->frame_num_offset + h->frame_num;
- else
- abs_frame_num = 0;
-
- if(h->nal_ref_idc==0 && abs_frame_num > 0)
- abs_frame_num--;
-
- expected_delta_per_poc_cycle = 0;
- for(i=0; i < h->sps.poc_cycle_length; i++)
- expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
-
- if(abs_frame_num > 0){
- int poc_cycle_cnt = (abs_frame_num - 1) / h->sps.poc_cycle_length;
- int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
-
- expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
- for(i = 0; i <= frame_num_in_poc_cycle; i++)
- expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
- } else
- expectedpoc = 0;
-
- if(h->nal_ref_idc == 0)
- expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
-
- field_poc[0] = expectedpoc + h->delta_poc[0];
- field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
-
- if(s->picture_structure == PICT_FRAME)
- field_poc[1] += h->delta_poc[1];
- }else{
- int poc;
- if(h->nal_unit_type == NAL_IDR_SLICE){
- poc= 0;
- }else{
- if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num);
- else poc= 2*(h->frame_num_offset + h->frame_num) - 1;
- }
- field_poc[0]= poc;
- field_poc[1]= poc;
- }
-
- if(s->picture_structure != PICT_BOTTOM_FIELD) {
- s->current_picture_ptr->field_poc[0]= field_poc[0];
- s->current_picture_ptr->poc = field_poc[0];
- }
- if(s->picture_structure != PICT_TOP_FIELD) {
- s->current_picture_ptr->field_poc[1]= field_poc[1];
- s->current_picture_ptr->poc = field_poc[1];
- }
- if(!FIELD_PICTURE || !s->first_field) {
- Picture *cur = s->current_picture_ptr;
- cur->poc= FFMIN(cur->field_poc[0], cur->field_poc[1]);
- }
-
- return 0;
-}
-
-
-/**
- * initialize scan tables
- */
-static void init_scan_tables(H264Context *h){
- MpegEncContext * const s = &h->s;
- int i;
- if(s->dsp.h264_idct_add == ff_h264_idct_add_c){ //FIXME little ugly
- memcpy(h->zigzag_scan, zigzag_scan, 16*sizeof(uint8_t));
- memcpy(h-> field_scan, field_scan, 16*sizeof(uint8_t));
- }else{
- for(i=0; i<16; i++){
-#define T(x) (x>>2) | ((x<<2) & 0xF)
- h->zigzag_scan[i] = T(zigzag_scan[i]);
- h-> field_scan[i] = T( field_scan[i]);
-#undef T
- }
- }
- if(s->dsp.h264_idct8_add == ff_h264_idct8_add_c){
- memcpy(h->zigzag_scan8x8, zigzag_scan8x8, 64*sizeof(uint8_t));
- memcpy(h->zigzag_scan8x8_cavlc, zigzag_scan8x8_cavlc, 64*sizeof(uint8_t));
- memcpy(h->field_scan8x8, field_scan8x8, 64*sizeof(uint8_t));
- memcpy(h->field_scan8x8_cavlc, field_scan8x8_cavlc, 64*sizeof(uint8_t));
- }else{
- for(i=0; i<64; i++){
-#define T(x) (x>>3) | ((x&7)<<3)
- h->zigzag_scan8x8[i] = T(zigzag_scan8x8[i]);
- h->zigzag_scan8x8_cavlc[i] = T(zigzag_scan8x8_cavlc[i]);
- h->field_scan8x8[i] = T(field_scan8x8[i]);
- h->field_scan8x8_cavlc[i] = T(field_scan8x8_cavlc[i]);
-#undef T
- }
- }
- if(h->sps.transform_bypass){ //FIXME same ugly
- h->zigzag_scan_q0 = zigzag_scan;
- h->zigzag_scan8x8_q0 = zigzag_scan8x8;
- h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
- h->field_scan_q0 = field_scan;
- h->field_scan8x8_q0 = field_scan8x8;
- h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
- }else{
- h->zigzag_scan_q0 = h->zigzag_scan;
- h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
- h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
- h->field_scan_q0 = h->field_scan;
- h->field_scan8x8_q0 = h->field_scan8x8;
- h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
- }
-}
-
-/**
- * Replicates H264 "master" context to thread contexts.
- */
-static void clone_slice(H264Context *dst, H264Context *src)
-{
- memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
- dst->s.current_picture_ptr = src->s.current_picture_ptr;
- dst->s.current_picture = src->s.current_picture;
- dst->s.linesize = src->s.linesize;
- dst->s.uvlinesize = src->s.uvlinesize;
- dst->s.first_field = src->s.first_field;
-
- dst->prev_poc_msb = src->prev_poc_msb;
- dst->prev_poc_lsb = src->prev_poc_lsb;
- dst->prev_frame_num_offset = src->prev_frame_num_offset;
- dst->prev_frame_num = src->prev_frame_num;
- dst->short_ref_count = src->short_ref_count;
-
- memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
- memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
- memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
- memcpy(dst->ref_list, src->ref_list, sizeof(dst->ref_list));
-
- memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
- memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
-}
-
-/**
- * decodes a slice header.
- * this will allso call MPV_common_init() and frame_start() as needed
- *
- * @param h h264context
- * @param h0 h264 master context (differs from 'h' when doing sliced based parallel decoding)
- *
- * @return 0 if okay, <0 if an error occured, 1 if decoding must not be multithreaded
- */
-static int decode_slice_header(H264Context *h, H264Context *h0){
- MpegEncContext * const s = &h->s;
- MpegEncContext * const s0 = &h0->s;
- unsigned int first_mb_in_slice;
- unsigned int pps_id;
- int num_ref_idx_active_override_flag;
- static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE};
- unsigned int slice_type, tmp, i;
- int default_ref_list_done = 0;
- int last_pic_structure;
-
- s->dropable= h->nal_ref_idc == 0;
-
- if((s->avctx->flags2 & CODEC_FLAG2_FAST) && !h->nal_ref_idc){
- s->me.qpel_put= s->dsp.put_2tap_qpel_pixels_tab;
- s->me.qpel_avg= s->dsp.avg_2tap_qpel_pixels_tab;
- }else{
- s->me.qpel_put= s->dsp.put_h264_qpel_pixels_tab;
- s->me.qpel_avg= s->dsp.avg_h264_qpel_pixels_tab;
- }
-
- first_mb_in_slice= get_ue_golomb(&s->gb);
-
- if((s->flags2 & CODEC_FLAG2_CHUNKS) && first_mb_in_slice == 0){
- h0->current_slice = 0;
- if (!s0->first_field)
- s->current_picture_ptr= NULL;
- }
-
- slice_type= get_ue_golomb(&s->gb);
- if(slice_type > 9){
- av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
- return -1;
- }
- if(slice_type > 4){
- slice_type -= 5;
- h->slice_type_fixed=1;
- }else
- h->slice_type_fixed=0;
-
- slice_type= slice_type_map[ slice_type ];
- if (slice_type == I_TYPE
- || (h0->current_slice != 0 && slice_type == h0->last_slice_type) ) {
- default_ref_list_done = 1;
- }
- h->slice_type= slice_type;
-
- s->pict_type= h->slice_type; // to make a few old func happy, it's wrong though
- if (s->pict_type == B_TYPE && s->last_picture_ptr == NULL) {
- av_log(h->s.avctx, AV_LOG_ERROR,
- "B picture before any references, skipping\n");
- return -1;
- }
-
- pps_id= get_ue_golomb(&s->gb);
- if(pps_id>=MAX_PPS_COUNT){
- av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
- return -1;
- }
- if(!h0->pps_buffers[pps_id]) {
- av_log(h->s.avctx, AV_LOG_ERROR, "non existing PPS referenced\n");
- return -1;
- }
- h->pps= *h0->pps_buffers[pps_id];
-
- if(!h0->sps_buffers[h->pps.sps_id]) {
- av_log(h->s.avctx, AV_LOG_ERROR, "non existing SPS referenced\n");
- return -1;
- }
- h->sps = *h0->sps_buffers[h->pps.sps_id];
-
- if(h == h0 && h->dequant_coeff_pps != pps_id){
- h->dequant_coeff_pps = pps_id;
- init_dequant_tables(h);
- }
-
- s->mb_width= h->sps.mb_width;
- s->mb_height= h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
-
- h->b_stride= s->mb_width*4;
- h->b8_stride= s->mb_width*2;
-
- s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right );
- if(h->sps.frame_mbs_only_flag)
- s->height= 16*s->mb_height - 2*(h->sps.crop_top + h->sps.crop_bottom);
- else
- s->height= 16*s->mb_height - 4*(h->sps.crop_top + h->sps.crop_bottom); //FIXME recheck
-
- if (s->context_initialized
- && ( s->width != s->avctx->width || s->height != s->avctx->height)) {
- if(h != h0)
- return -1; // width / height changed during parallelized decoding
- free_tables(h);
- MPV_common_end(s);
- }
- if (!s->context_initialized) {
- if(h != h0)
- return -1; // we cant (re-)initialize context during parallel decoding
- if (MPV_common_init(s) < 0)
- return -1;
- s->first_field = 0;
-
- init_scan_tables(h);
- alloc_tables(h);
-
- for(i = 1; i < s->avctx->thread_count; i++) {
- H264Context *c;
- c = h->thread_context[i] = av_malloc(sizeof(H264Context));
- memcpy(c, h, sizeof(MpegEncContext));
- memset(&c->s + 1, 0, sizeof(H264Context) - sizeof(MpegEncContext));
- c->sps = h->sps;
- c->pps = h->pps;
- init_scan_tables(c);
- clone_tables(c, h);
- }
-
- for(i = 0; i < s->avctx->thread_count; i++)
- if(context_init(h->thread_context[i]) < 0)
- return -1;
-
- s->avctx->width = s->width;
- s->avctx->height = s->height;
- s->avctx->sample_aspect_ratio= h->sps.sar;
- if(!s->avctx->sample_aspect_ratio.den)
- s->avctx->sample_aspect_ratio.den = 1;
-
- if(h->sps.timing_info_present_flag){
- s->avctx->time_base= (AVRational){h->sps.num_units_in_tick * 2, h->sps.time_scale};
- if(h->x264_build > 0 && h->x264_build < 44)
- s->avctx->time_base.den *= 2;
- av_reduce(&s->avctx->time_base.num, &s->avctx->time_base.den,
- s->avctx->time_base.num, s->avctx->time_base.den, 1<<30);
- }
- }
-
- h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
-
- h->mb_mbaff = 0;
- h->mb_aff_frame = 0;
- last_pic_structure = s0->picture_structure;
- if(h->sps.frame_mbs_only_flag){
- s->picture_structure= PICT_FRAME;
- }else{
- if(get_bits1(&s->gb)) { //field_pic_flag
- s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
- } else {
- s->picture_structure= PICT_FRAME;
- h->mb_aff_frame = h->sps.mb_aff;
- }
- }
-
- if(h0->current_slice == 0){
- /* See if we have a decoded first field looking for a pair... */
- if (s0->first_field) {
- assert(s0->current_picture_ptr);
- assert(s0->current_picture_ptr->data[0]);
- assert(s0->current_picture_ptr->reference != DELAYED_PIC_REF);
-
- /* figure out if we have a complementary field pair */
- if (!FIELD_PICTURE || s->picture_structure == last_pic_structure) {
- /*
- * Previous field is unmatched. Don't display it, but let it
- * remain for reference if marked as such.
- */
- s0->current_picture_ptr = NULL;
- s0->first_field = FIELD_PICTURE;
-
- } else {
- if (h->nal_ref_idc &&
- s0->current_picture_ptr->reference &&
- s0->current_picture_ptr->frame_num != h->frame_num) {
- /*
- * This and previous field were reference, but had
- * different frame_nums. Consider this field first in
- * pair. Throw away previous field except for reference
- * purposes.
- */
- s0->first_field = 1;
- s0->current_picture_ptr = NULL;
-
- } else {
- /* Second field in complementary pair */
- s0->first_field = 0;
- }
- }
-
- } else {
- /* Frame or first field in a potentially complementary pair */
- assert(!s0->current_picture_ptr);
- s0->first_field = FIELD_PICTURE;
- }
-
- if((!FIELD_PICTURE || s0->first_field) && frame_start(h) < 0) {
- s0->first_field = 0;
- return -1;
- }
- }
- if(h != h0)
- clone_slice(h, h0);
-
- s->current_picture_ptr->frame_num= h->frame_num; //FIXME frame_num cleanup
-
- assert(s->mb_num == s->mb_width * s->mb_height);
- if(first_mb_in_slice << FIELD_OR_MBAFF_PICTURE >= s->mb_num ||
- first_mb_in_slice >= s->mb_num){
- av_log(h->s.avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
- return -1;
- }
- s->resync_mb_x = s->mb_x = first_mb_in_slice % s->mb_width;
- s->resync_mb_y = s->mb_y = (first_mb_in_slice / s->mb_width) << FIELD_OR_MBAFF_PICTURE;
- if (s->picture_structure == PICT_BOTTOM_FIELD)
- s->resync_mb_y = s->mb_y = s->mb_y + 1;
- assert(s->mb_y < s->mb_height);
-
- if(s->picture_structure==PICT_FRAME){
- h->curr_pic_num= h->frame_num;
- h->max_pic_num= 1<< h->sps.log2_max_frame_num;
- }else{
- h->curr_pic_num= 2*h->frame_num + 1;
- h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
- }
-
- if(h->nal_unit_type == NAL_IDR_SLICE){
- get_ue_golomb(&s->gb); /* idr_pic_id */
- }
-
- if(h->sps.poc_type==0){
- h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
-
- if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
- h->delta_poc_bottom= get_se_golomb(&s->gb);
- }
- }
-
- if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
- h->delta_poc[0]= get_se_golomb(&s->gb);
-
- if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
- h->delta_poc[1]= get_se_golomb(&s->gb);
- }
-
- init_poc(h);
-
- if(h->pps.redundant_pic_cnt_present){
- h->redundant_pic_count= get_ue_golomb(&s->gb);
- }
-
- //set defaults, might be overriden a few line later
- h->ref_count[0]= h->pps.ref_count[0];
- h->ref_count[1]= h->pps.ref_count[1];
-
- if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){
- if(h->slice_type == B_TYPE){
- h->direct_spatial_mv_pred= get_bits1(&s->gb);
- if(FIELD_OR_MBAFF_PICTURE && h->direct_spatial_mv_pred)
- av_log(h->s.avctx, AV_LOG_ERROR, "Interlaced pictures + spatial direct mode is not implemented\n");
- }
- num_ref_idx_active_override_flag= get_bits1(&s->gb);
-
- if(num_ref_idx_active_override_flag){
- h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
- if(h->slice_type==B_TYPE)
- h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
-
- if(h->ref_count[0]-1 > 32-1 || h->ref_count[1]-1 > 32-1){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
- h->ref_count[0]= h->ref_count[1]= 1;
- return -1;
- }
- }
- if(h->slice_type == B_TYPE)
- h->list_count= 2;
- else
- h->list_count= 1;
- }else
- h->list_count= 0;
-
- if(!default_ref_list_done){
- fill_default_ref_list(h);
- }
-
- if(decode_ref_pic_list_reordering(h) < 0)
- return -1;
-
- if( (h->pps.weighted_pred && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE ))
- || (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) )
- pred_weight_table(h);
- else if(h->pps.weighted_bipred_idc==2 && h->slice_type==B_TYPE)
- implicit_weight_table(h);
- else
- h->use_weight = 0;
-
- if(h->nal_ref_idc)
- decode_ref_pic_marking(h0, &s->gb);
-
- if(FRAME_MBAFF)
- fill_mbaff_ref_list(h);
-
- if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE && h->pps.cabac ){
- tmp = get_ue_golomb(&s->gb);
- if(tmp > 2){
- av_log(s->avctx, AV_LOG_ERROR, "cabac_init_idc overflow\n");
- return -1;
- }
- h->cabac_init_idc= tmp;
- }
-
- h->last_qscale_diff = 0;
- tmp = h->pps.init_qp + get_se_golomb(&s->gb);
- if(tmp>51){
- av_log(s->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
- return -1;
- }
- s->qscale= tmp;
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
- //FIXME qscale / qp ... stuff
- if(h->slice_type == SP_TYPE){
- get_bits1(&s->gb); /* sp_for_switch_flag */
- }
- if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){
- get_se_golomb(&s->gb); /* slice_qs_delta */
- }
-
- h->deblocking_filter = 1;
- h->slice_alpha_c0_offset = 0;
- h->slice_beta_offset = 0;
- if( h->pps.deblocking_filter_parameters_present ) {
- tmp= get_ue_golomb(&s->gb);
- if(tmp > 2){
- av_log(s->avctx, AV_LOG_ERROR, "deblocking_filter_idc %u out of range\n", tmp);
- return -1;
- }
- h->deblocking_filter= tmp;
- if(h->deblocking_filter < 2)
- h->deblocking_filter^= 1; // 1<->0
-
- if( h->deblocking_filter ) {
- h->slice_alpha_c0_offset = get_se_golomb(&s->gb) << 1;
- h->slice_beta_offset = get_se_golomb(&s->gb) << 1;
- }
- }
-
- if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
- ||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type != I_TYPE)
- ||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type == B_TYPE)
- ||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
- h->deblocking_filter= 0;
-
- if(h->deblocking_filter == 1 && h0->max_contexts > 1) {
- if(s->avctx->flags2 & CODEC_FLAG2_FAST) {
- /* Cheat slightly for speed:
- Dont bother to deblock across slices */
- h->deblocking_filter = 2;
- } else {
- h0->max_contexts = 1;
- if(!h0->single_decode_warning) {
- av_log(s->avctx, AV_LOG_INFO, "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
- h0->single_decode_warning = 1;
- }
- if(h != h0)
- return 1; // deblocking switched inside frame
- }
- }
-
-#if 0 //FMO
- if( h->pps.num_slice_groups > 1 && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
- slice_group_change_cycle= get_bits(&s->gb, ?);
-#endif
-
- h0->last_slice_type = slice_type;
- h->slice_num = ++h0->current_slice;
-
- h->emu_edge_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16;
- h->emu_edge_height= (FRAME_MBAFF || FIELD_PICTURE) ? 0 : h->emu_edge_width;
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "slice:%d %s mb:%d %c pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s\n",
- h->slice_num,
- (s->picture_structure==PICT_FRAME ? "F" : s->picture_structure==PICT_TOP_FIELD ? "T" : "B"),
- first_mb_in_slice,
- av_get_pict_type_char(h->slice_type),
- pps_id, h->frame_num,
- s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
- h->ref_count[0], h->ref_count[1],
- s->qscale,
- h->deblocking_filter, h->slice_alpha_c0_offset/2, h->slice_beta_offset/2,
- h->use_weight,
- h->use_weight==1 && h->use_weight_chroma ? "c" : ""
- );
- }
-
- return 0;
-}
-
-/**
- *
- */
-static inline int get_level_prefix(GetBitContext *gb){
- unsigned int buf;
- int log;
-
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf=GET_CACHE(re, gb);
-
- log= 32 - av_log2(buf);
-#ifdef TRACE
- print_bin(buf>>(32-log), log);
- av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__);
-#endif
-
- LAST_SKIP_BITS(re, gb, log);
- CLOSE_READER(re, gb);
-
- return log-1;
-}
-
-static inline int get_dct8x8_allowed(H264Context *h){
- int i;
- for(i=0; i<4; i++){
- if(!IS_SUB_8X8(h->sub_mb_type[i])
- || (!h->sps.direct_8x8_inference_flag && IS_DIRECT(h->sub_mb_type[i])))
- return 0;
- }
- return 1;
-}
-
-/**
- * decodes a residual block.
- * @param n block index
- * @param scantable scantable
- * @param max_coeff number of coefficients in the block
- * @return <0 if an error occured
- */
-static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff){
- MpegEncContext * const s = &h->s;
- static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3};
- int level[16];
- int zeros_left, coeff_num, coeff_token, total_coeff, i, j, trailing_ones, run_before;
-
- //FIXME put trailing_onex into the context
-
- if(n == CHROMA_DC_BLOCK_INDEX){
- coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1);
- total_coeff= coeff_token>>2;
- }else{
- if(n == LUMA_DC_BLOCK_INDEX){
- total_coeff= pred_non_zero_count(h, 0);
- coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
- total_coeff= coeff_token>>2;
- }else{
- total_coeff= pred_non_zero_count(h, n);
- coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
- total_coeff= coeff_token>>2;
- h->non_zero_count_cache[ scan8[n] ]= total_coeff;
- }
- }
-
- //FIXME set last_non_zero?
-
- if(total_coeff==0)
- return 0;
- if(total_coeff > (unsigned)max_coeff) {
- av_log(h->s.avctx, AV_LOG_ERROR, "corrupted macroblock %d %d (total_coeff=%d)\n", s->mb_x, s->mb_y, total_coeff);
- return -1;
- }
-
- trailing_ones= coeff_token&3;
- tprintf(h->s.avctx, "trailing:%d, total:%d\n", trailing_ones, total_coeff);
- assert(total_coeff<=16);
-
- for(i=0; i<trailing_ones; i++){
- level[i]= 1 - 2*get_bits1(gb);
- }
-
- if(i<total_coeff) {
- int level_code, mask;
- int suffix_length = total_coeff > 10 && trailing_ones < 3;
- int prefix= get_level_prefix(gb);
-
- //first coefficient has suffix_length equal to 0 or 1
- if(prefix<14){ //FIXME try to build a large unified VLC table for all this
- if(suffix_length)
- level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
- else
- level_code= (prefix<<suffix_length); //part
- }else if(prefix==14){
- if(suffix_length)
- level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
- else
- level_code= prefix + get_bits(gb, 4); //part
- }else if(prefix==15){
- level_code= (prefix<<suffix_length) + get_bits(gb, 12); //part
- if(suffix_length==0) level_code+=15; //FIXME doesn't make (much)sense
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- if(trailing_ones < 3) level_code += 2;
-
- suffix_length = 1;
- if(level_code > 5)
- suffix_length++;
- mask= -(level_code&1);
- level[i]= (((2+level_code)>>1) ^ mask) - mask;
- i++;
-
- //remaining coefficients have suffix_length > 0
- for(;i<total_coeff;i++) {
- static const int suffix_limit[7] = {0,5,11,23,47,95,INT_MAX };
- prefix = get_level_prefix(gb);
- if(prefix<15){
- level_code = (prefix<<suffix_length) + get_bits(gb, suffix_length);
- }else if(prefix==15){
- level_code = (prefix<<suffix_length) + get_bits(gb, 12);
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- mask= -(level_code&1);
- level[i]= (((2+level_code)>>1) ^ mask) - mask;
- if(level_code > suffix_limit[suffix_length])
- suffix_length++;
- }
- }
-
- if(total_coeff == max_coeff)
- zeros_left=0;
- else{
- if(n == CHROMA_DC_BLOCK_INDEX)
- zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1);
- else
- zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1);
- }
-
- coeff_num = zeros_left + total_coeff - 1;
- j = scantable[coeff_num];
- if(n > 24){
- block[j] = level[0];
- for(i=1;i<total_coeff;i++) {
- if(zeros_left <= 0)
- run_before = 0;
- else if(zeros_left < 7){
- run_before= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
- }else{
- run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
- }
- zeros_left -= run_before;
- coeff_num -= 1 + run_before;
- j= scantable[ coeff_num ];
-
- block[j]= level[i];
- }
- }else{
- block[j] = (level[0] * qmul[j] + 32)>>6;
- for(i=1;i<total_coeff;i++) {
- if(zeros_left <= 0)
- run_before = 0;
- else if(zeros_left < 7){
- run_before= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
- }else{
- run_before= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
- }
- zeros_left -= run_before;
- coeff_num -= 1 + run_before;
- j= scantable[ coeff_num ];
-
- block[j]= (level[i] * qmul[j] + 32)>>6;
- }
- }
-
- if(zeros_left<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
-
- return 0;
-}
-
-static void predict_field_decoding_flag(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
- int mb_type = (h->slice_table[mb_xy-1] == h->slice_num)
- ? s->current_picture.mb_type[mb_xy-1]
- : (h->slice_table[mb_xy-s->mb_stride] == h->slice_num)
- ? s->current_picture.mb_type[mb_xy-s->mb_stride]
- : 0;
- h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
-}
-
-/**
- * decodes a P_SKIP or B_SKIP macroblock
- */
-static void decode_mb_skip(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
- int mb_type=0;
-
- memset(h->non_zero_count[mb_xy], 0, 16);
- memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
-
- if(MB_FIELD)
- mb_type|= MB_TYPE_INTERLACED;
-
- if( h->slice_type == B_TYPE )
- {
- // just for fill_caches. pred_direct_motion will set the real mb_type
- mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP;
-
- fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
- pred_direct_motion(h, &mb_type);
- mb_type|= MB_TYPE_SKIP;
- }
- else
- {
- int mx, my;
- mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
-
- fill_caches(h, mb_type, 0); //FIXME check what is needed and what not ...
- pred_pskip_motion(h, &mx, &my);
- fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
- fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
- }
-
- write_back_motion(h, mb_type);
- s->current_picture.mb_type[mb_xy]= mb_type;
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- h->slice_table[ mb_xy ]= h->slice_num;
- h->prev_mb_skipped= 1;
-}
-
-/**
- * decodes a macroblock
- * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
- */
-static int decode_mb_cavlc(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
- int partition_count;
- unsigned int mb_type, cbp;
- int dct8x8_allowed= h->pps.transform_8x8_mode;
-
- s->dsp.clear_blocks(h->mb); //FIXME avoid if already clear (move after skip handlong?
-
- tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
- cbp = 0; /* avoid warning. FIXME: find a solution without slowing
- down the code */
- if(h->slice_type != I_TYPE && h->slice_type != SI_TYPE){
- if(s->mb_skip_run==-1)
- s->mb_skip_run= get_ue_golomb(&s->gb);
-
- if (s->mb_skip_run--) {
- if(FRAME_MBAFF && (s->mb_y&1) == 0){
- if(s->mb_skip_run==0)
- h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb);
- else
- predict_field_decoding_flag(h);
- }
- decode_mb_skip(h);
- return 0;
- }
- }
- if(FRAME_MBAFF){
- if( (s->mb_y&1) == 0 )
- h->mb_mbaff = h->mb_field_decoding_flag = get_bits1(&s->gb);
- }else
- h->mb_field_decoding_flag= (s->picture_structure!=PICT_FRAME);
-
- h->prev_mb_skipped= 0;
-
- mb_type= get_ue_golomb(&s->gb);
- if(h->slice_type == B_TYPE){
- if(mb_type < 23){
- partition_count= b_mb_type_info[mb_type].partition_count;
- mb_type= b_mb_type_info[mb_type].type;
- }else{
- mb_type -= 23;
- goto decode_intra_mb;
- }
- }else if(h->slice_type == P_TYPE /*|| h->slice_type == SP_TYPE */){
- if(mb_type < 5){
- partition_count= p_mb_type_info[mb_type].partition_count;
- mb_type= p_mb_type_info[mb_type].type;
- }else{
- mb_type -= 5;
- goto decode_intra_mb;
- }
- }else{
- assert(h->slice_type == I_TYPE);
-decode_intra_mb:
- if(mb_type > 25){
- av_log(h->s.avctx, AV_LOG_ERROR, "mb_type %d in %c slice too large at %d %d\n", mb_type, av_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y);
- return -1;
- }
- partition_count=0;
- cbp= i_mb_type_info[mb_type].cbp;
- h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
- mb_type= i_mb_type_info[mb_type].type;
- }
-
- if(MB_FIELD)
- mb_type |= MB_TYPE_INTERLACED;
-
- h->slice_table[ mb_xy ]= h->slice_num;
-
- if(IS_INTRA_PCM(mb_type)){
- unsigned int x, y;
-
- // We assume these blocks are very rare so we do not optimize it.
- align_get_bits(&s->gb);
-
- // The pixels are stored in the same order as levels in h->mb array.
- for(y=0; y<16; y++){
- const int index= 4*(y&3) + 32*((y>>2)&1) + 128*(y>>3);
- for(x=0; x<16; x++){
- tprintf(s->avctx, "LUMA ICPM LEVEL (%3d)\n", show_bits(&s->gb, 8));
- h->mb[index + (x&3) + 16*((x>>2)&1) + 64*(x>>3)]= get_bits(&s->gb, 8);
- }
- }
- for(y=0; y<8; y++){
- const int index= 256 + 4*(y&3) + 32*(y>>2);
- for(x=0; x<8; x++){
- tprintf(s->avctx, "CHROMA U ICPM LEVEL (%3d)\n", show_bits(&s->gb, 8));
- h->mb[index + (x&3) + 16*(x>>2)]= get_bits(&s->gb, 8);
- }
- }
- for(y=0; y<8; y++){
- const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
- for(x=0; x<8; x++){
- tprintf(s->avctx, "CHROMA V ICPM LEVEL (%3d)\n", show_bits(&s->gb, 8));
- h->mb[index + (x&3) + 16*(x>>2)]= get_bits(&s->gb, 8);
- }
- }
-
- // In deblocking, the quantizer is 0
- s->current_picture.qscale_table[mb_xy]= 0;
- h->chroma_qp[0] = get_chroma_qp(h, 0, 0);
- h->chroma_qp[1] = get_chroma_qp(h, 1, 0);
- // All coeffs are present
- memset(h->non_zero_count[mb_xy], 16, 16);
-
- s->current_picture.mb_type[mb_xy]= mb_type;
- return 0;
- }
-
- if(MB_MBAFF){
- h->ref_count[0] <<= 1;
- h->ref_count[1] <<= 1;
- }
-
- fill_caches(h, mb_type, 0);
-
- //mb_pred
- if(IS_INTRA(mb_type)){
- int pred_mode;
-// init_top_left_availability(h);
- if(IS_INTRA4x4(mb_type)){
- int i;
- int di = 1;
- if(dct8x8_allowed && get_bits1(&s->gb)){
- mb_type |= MB_TYPE_8x8DCT;
- di = 4;
- }
-
-// fill_intra4x4_pred_table(h);
- for(i=0; i<16; i+=di){
- int mode= pred_intra_mode(h, i);
-
- if(!get_bits1(&s->gb)){
- const int rem_mode= get_bits(&s->gb, 3);
- mode = rem_mode + (rem_mode >= mode);
- }
-
- if(di==4)
- fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
- else
- h->intra4x4_pred_mode_cache[ scan8[i] ] = mode;
- }
- write_back_intra_pred_mode(h);
- if( check_intra4x4_pred_mode(h) < 0)
- return -1;
- }else{
- h->intra16x16_pred_mode= check_intra_pred_mode(h, h->intra16x16_pred_mode);
- if(h->intra16x16_pred_mode < 0)
- return -1;
- }
-
- pred_mode= check_intra_pred_mode(h, get_ue_golomb(&s->gb));
- if(pred_mode < 0)
- return -1;
- h->chroma_pred_mode= pred_mode;
- }else if(partition_count==4){
- int i, j, sub_partition_count[4], list, ref[2][4];
-
- if(h->slice_type == B_TYPE){
- for(i=0; i<4; i++){
- h->sub_mb_type[i]= get_ue_golomb(&s->gb);
- if(h->sub_mb_type[i] >=13){
- av_log(h->s.avctx, AV_LOG_ERROR, "B sub_mb_type %u out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
- return -1;
- }
- sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- if( IS_DIRECT(h->sub_mb_type[0]) || IS_DIRECT(h->sub_mb_type[1])
- || IS_DIRECT(h->sub_mb_type[2]) || IS_DIRECT(h->sub_mb_type[3])) {
- pred_direct_motion(h, &mb_type);
- h->ref_cache[0][scan8[4]] =
- h->ref_cache[1][scan8[4]] =
- h->ref_cache[0][scan8[12]] =
- h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
- }
- }else{
- assert(h->slice_type == P_TYPE || h->slice_type == SP_TYPE); //FIXME SP correct ?
- for(i=0; i<4; i++){
- h->sub_mb_type[i]= get_ue_golomb(&s->gb);
- if(h->sub_mb_type[i] >=4){
- av_log(h->s.avctx, AV_LOG_ERROR, "P sub_mb_type %u out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
- return -1;
- }
- sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- }
-
- for(list=0; list<h->list_count; list++){
- int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
- for(i=0; i<4; i++){
- if(IS_DIRECT(h->sub_mb_type[i])) continue;
- if(IS_DIR(h->sub_mb_type[i], 0, list)){
- unsigned int tmp = get_te0_golomb(&s->gb, ref_count); //FIXME init to 0 before and skip?
- if(tmp>=ref_count){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", tmp);
- return -1;
- }
- ref[list][i]= tmp;
- }else{
- //FIXME
- ref[list][i] = -1;
- }
- }
- }
-
- if(dct8x8_allowed)
- dct8x8_allowed = get_dct8x8_allowed(h);
-
- for(list=0; list<h->list_count; list++){
- for(i=0; i<4; i++){
- if(IS_DIRECT(h->sub_mb_type[i])) {
- h->ref_cache[list][ scan8[4*i] ] = h->ref_cache[list][ scan8[4*i]+1 ];
- continue;
- }
- h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ]=
- h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
-
- if(IS_DIR(h->sub_mb_type[i], 0, list)){
- const int sub_mb_type= h->sub_mb_type[i];
- const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
- for(j=0; j<sub_partition_count[i]; j++){
- int mx, my;
- const int index= 4*i + block_width*j;
- int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
- pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- if(IS_SUB_8X8(sub_mb_type)){
- mv_cache[ 1 ][0]=
- mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
- mv_cache[ 1 ][1]=
- mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
- }else if(IS_SUB_8X4(sub_mb_type)){
- mv_cache[ 1 ][0]= mx;
- mv_cache[ 1 ][1]= my;
- }else if(IS_SUB_4X8(sub_mb_type)){
- mv_cache[ 8 ][0]= mx;
- mv_cache[ 8 ][1]= my;
- }
- mv_cache[ 0 ][0]= mx;
- mv_cache[ 0 ][1]= my;
- }
- }else{
- uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
- p[0] = p[1]=
- p[8] = p[9]= 0;
- }
- }
- }
- }else if(IS_DIRECT(mb_type)){
- pred_direct_motion(h, &mb_type);
- dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
- }else{
- int list, mx, my, i;
- //FIXME we should set ref_idx_l? to 0 if we use that later ...
- if(IS_16X16(mb_type)){
- for(list=0; list<h->list_count; list++){
- unsigned int val;
- if(IS_DIR(mb_type, 0, list)){
- val= get_te0_golomb(&s->gb, h->ref_count[list]);
- if(val >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", val);
- return -1;
- }
- }else
- val= LIST_NOT_USED&0xFF;
- fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 1);
- }
- for(list=0; list<h->list_count; list++){
- unsigned int val;
- if(IS_DIR(mb_type, 0, list)){
- pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- val= pack16to32(mx,my);
- }else
- val=0;
- fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, val, 4);
- }
- }
- else if(IS_16X8(mb_type)){
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){
- val= get_te0_golomb(&s->gb, h->ref_count[list]);
- if(val >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", val);
- return -1;
- }
- }else
- val= LIST_NOT_USED&0xFF;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){
- pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- val= pack16to32(mx,my);
- }else
- val=0;
- fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 4);
- }
- }
- }else{
- assert(IS_8X16(mb_type));
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){ //FIXME optimize
- val= get_te0_golomb(&s->gb, h->ref_count[list]);
- if(val >= h->ref_count[list]){
- av_log(h->s.avctx, AV_LOG_ERROR, "ref %u overflow\n", val);
- return -1;
- }
- }else
- val= LIST_NOT_USED&0xFF;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- unsigned int val;
- if(IS_DIR(mb_type, i, list)){
- pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
- mx += get_se_golomb(&s->gb);
- my += get_se_golomb(&s->gb);
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- val= pack16to32(mx,my);
- }else
- val=0;
- fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 4);
- }
- }
- }
- }
-
- if(IS_INTER(mb_type))
- write_back_motion(h, mb_type);
-
- if(!IS_INTRA16x16(mb_type)){
- cbp= get_ue_golomb(&s->gb);
- if(cbp > 47){
- av_log(h->s.avctx, AV_LOG_ERROR, "cbp too large (%u) at %d %d\n", cbp, s->mb_x, s->mb_y);
- return -1;
- }
-
- if(IS_INTRA4x4(mb_type))
- cbp= golomb_to_intra4x4_cbp[cbp];
- else
- cbp= golomb_to_inter_cbp[cbp];
- }
- h->cbp = cbp;
-
- if(dct8x8_allowed && (cbp&15) && !IS_INTRA(mb_type)){
- if(get_bits1(&s->gb))
- mb_type |= MB_TYPE_8x8DCT;
- }
- s->current_picture.mb_type[mb_xy]= mb_type;
-
- if(cbp || IS_INTRA16x16(mb_type)){
- int i8x8, i4x4, chroma_idx;
- int dquant;
- GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr;
- const uint8_t *scan, *scan8x8, *dc_scan;
-
-// fill_non_zero_count_cache(h);
-
- if(IS_INTERLACED(mb_type)){
- scan8x8= s->qscale ? h->field_scan8x8_cavlc : h->field_scan8x8_cavlc_q0;
- scan= s->qscale ? h->field_scan : h->field_scan_q0;
- dc_scan= luma_dc_field_scan;
- }else{
- scan8x8= s->qscale ? h->zigzag_scan8x8_cavlc : h->zigzag_scan8x8_cavlc_q0;
- scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
- dc_scan= luma_dc_zigzag_scan;
- }
-
- dquant= get_se_golomb(&s->gb);
-
- if( dquant > 25 || dquant < -26 ){
- av_log(h->s.avctx, AV_LOG_ERROR, "dquant out of range (%d) at %d %d\n", dquant, s->mb_x, s->mb_y);
- return -1;
- }
-
- s->qscale += dquant;
- if(((unsigned)s->qscale) > 51){
- if(s->qscale<0) s->qscale+= 52;
- else s->qscale-= 52;
- }
-
- h->chroma_qp[0]= get_chroma_qp(h, 0, s->qscale);
- h->chroma_qp[1]= get_chroma_qp(h, 1, s->qscale);
- if(IS_INTRA16x16(mb_type)){
- if( decode_residual(h, h->intra_gb_ptr, h->mb, LUMA_DC_BLOCK_INDEX, dc_scan, h->dequant4_coeff[0][s->qscale], 16) < 0){
- return -1; //FIXME continue if partitioned and other return -1 too
- }
-
- assert((cbp&15) == 0 || (cbp&15) == 15);
-
- if(cbp&15){
- for(i8x8=0; i8x8<4; i8x8++){
- for(i4x4=0; i4x4<4; i4x4++){
- const int index= i4x4 + 4*i8x8;
- if( decode_residual(h, h->intra_gb_ptr, h->mb + 16*index, index, scan + 1, h->dequant4_coeff[0][s->qscale], 15) < 0 ){
- return -1;
- }
- }
- }
- }else{
- fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
- }
- }else{
- for(i8x8=0; i8x8<4; i8x8++){
- if(cbp & (1<<i8x8)){
- if(IS_8x8DCT(mb_type)){
- DCTELEM *buf = &h->mb[64*i8x8];
- uint8_t *nnz;
- for(i4x4=0; i4x4<4; i4x4++){
- if( decode_residual(h, gb, buf, i4x4+4*i8x8, scan8x8+16*i4x4,
- h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 16) <0 )
- return -1;
- }
- nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
- nnz[0] += nnz[1] + nnz[8] + nnz[9];
- }else{
- for(i4x4=0; i4x4<4; i4x4++){
- const int index= i4x4 + 4*i8x8;
-
- if( decode_residual(h, gb, h->mb + 16*index, index, scan, h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale], 16) <0 ){
- return -1;
- }
- }
- }
- }else{
- uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
- nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
- }
- }
- }
-
- if(cbp&0x30){
- for(chroma_idx=0; chroma_idx<2; chroma_idx++)
- if( decode_residual(h, gb, h->mb + 256 + 16*4*chroma_idx, CHROMA_DC_BLOCK_INDEX, chroma_dc_scan, NULL, 4) < 0){
- return -1;
- }
- }
-
- if(cbp&0x20){
- for(chroma_idx=0; chroma_idx<2; chroma_idx++){
- const uint32_t *qmul = h->dequant4_coeff[chroma_idx+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[chroma_idx]];
- for(i4x4=0; i4x4<4; i4x4++){
- const int index= 16 + 4*chroma_idx + i4x4;
- if( decode_residual(h, gb, h->mb + 16*index, index, scan + 1, qmul, 15) < 0){
- return -1;
- }
- }
- }
- }else{
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- }
- }else{
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- }
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- write_back_non_zero_count(h);
-
- if(MB_MBAFF){
- h->ref_count[0] >>= 1;
- h->ref_count[1] >>= 1;
- }
-
- return 0;
-}
-
-static int decode_cabac_field_decoding_flag(H264Context *h) {
- MpegEncContext * const s = &h->s;
- const int mb_x = s->mb_x;
- const int mb_y = s->mb_y & ~1;
- const int mba_xy = mb_x - 1 + mb_y *s->mb_stride;
- const int mbb_xy = mb_x + (mb_y-2)*s->mb_stride;
-
- unsigned int ctx = 0;
-
- if( h->slice_table[mba_xy] == h->slice_num && IS_INTERLACED( s->current_picture.mb_type[mba_xy] ) ) {
- ctx += 1;
- }
- if( h->slice_table[mbb_xy] == h->slice_num && IS_INTERLACED( s->current_picture.mb_type[mbb_xy] ) ) {
- ctx += 1;
- }
-
- return get_cabac_noinline( &h->cabac, &h->cabac_state[70 + ctx] );
-}
-
-static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) {
- uint8_t *state= &h->cabac_state[ctx_base];
- int mb_type;
-
- if(intra_slice){
- MpegEncContext * const s = &h->s;
- const int mba_xy = h->left_mb_xy[0];
- const int mbb_xy = h->top_mb_xy;
- int ctx=0;
- if( h->slice_table[mba_xy] == h->slice_num && !IS_INTRA4x4( s->current_picture.mb_type[mba_xy] ) )
- ctx++;
- if( h->slice_table[mbb_xy] == h->slice_num && !IS_INTRA4x4( s->current_picture.mb_type[mbb_xy] ) )
- ctx++;
- if( get_cabac_noinline( &h->cabac, &state[ctx] ) == 0 )
- return 0; /* I4x4 */
- state += 2;
- }else{
- if( get_cabac_noinline( &h->cabac, &state[0] ) == 0 )
- return 0; /* I4x4 */
- }
-
- if( get_cabac_terminate( &h->cabac ) )
- return 25; /* PCM */
-
- mb_type = 1; /* I16x16 */
- mb_type += 12 * get_cabac_noinline( &h->cabac, &state[1] ); /* cbp_luma != 0 */
- if( get_cabac_noinline( &h->cabac, &state[2] ) ) /* cbp_chroma */
- mb_type += 4 + 4 * get_cabac_noinline( &h->cabac, &state[2+intra_slice] );
- mb_type += 2 * get_cabac_noinline( &h->cabac, &state[3+intra_slice] );
- mb_type += 1 * get_cabac_noinline( &h->cabac, &state[3+2*intra_slice] );
- return mb_type;
-}
-
-static int decode_cabac_mb_type( H264Context *h ) {
- MpegEncContext * const s = &h->s;
-
- if( h->slice_type == I_TYPE ) {
- return decode_cabac_intra_mb_type(h, 3, 1);
- } else if( h->slice_type == P_TYPE ) {
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {
- /* P-type */
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {
- /* P_L0_D16x16, P_8x8 */
- return 3 * get_cabac_noinline( &h->cabac, &h->cabac_state[16] );
- } else {
- /* P_L0_D8x16, P_L0_D16x8 */
- return 2 - get_cabac_noinline( &h->cabac, &h->cabac_state[17] );
- }
- } else {
- return decode_cabac_intra_mb_type(h, 17, 0) + 5;
- }
- } else if( h->slice_type == B_TYPE ) {
- const int mba_xy = h->left_mb_xy[0];
- const int mbb_xy = h->top_mb_xy;
- int ctx = 0;
- int bits;
-
- if( h->slice_table[mba_xy] == h->slice_num && !IS_DIRECT( s->current_picture.mb_type[mba_xy] ) )
- ctx++;
- if( h->slice_table[mbb_xy] == h->slice_num && !IS_DIRECT( s->current_picture.mb_type[mbb_xy] ) )
- ctx++;
-
- if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+ctx] ) )
- return 0; /* B_Direct_16x16 */
-
- if( !get_cabac_noinline( &h->cabac, &h->cabac_state[27+3] ) ) {
- return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */
- }
-
- bits = get_cabac_noinline( &h->cabac, &h->cabac_state[27+4] ) << 3;
- bits|= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 2;
- bits|= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] ) << 1;
- bits|= get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
- if( bits < 8 )
- return bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
- else if( bits == 13 ) {
- return decode_cabac_intra_mb_type(h, 32, 0) + 23;
- } else if( bits == 14 )
- return 11; /* B_L1_L0_8x16 */
- else if( bits == 15 )
- return 22; /* B_8x8 */
-
- bits= ( bits<<1 ) | get_cabac_noinline( &h->cabac, &h->cabac_state[27+5] );
- return bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
- } else {
- /* TODO SI/SP frames? */
- return -1;
- }
-}
-
-static int decode_cabac_mb_skip( H264Context *h, int mb_x, int mb_y ) {
- MpegEncContext * const s = &h->s;
- int mba_xy, mbb_xy;
- int ctx = 0;
-
- if(FRAME_MBAFF){ //FIXME merge with the stuff in fill_caches?
- int mb_xy = mb_x + (mb_y&~1)*s->mb_stride;
- mba_xy = mb_xy - 1;
- if( (mb_y&1)
- && h->slice_table[mba_xy] == h->slice_num
- && MB_FIELD == !!IS_INTERLACED( s->current_picture.mb_type[mba_xy] ) )
- mba_xy += s->mb_stride;
- if( MB_FIELD ){
- mbb_xy = mb_xy - s->mb_stride;
- if( !(mb_y&1)
- && h->slice_table[mbb_xy] == h->slice_num
- && IS_INTERLACED( s->current_picture.mb_type[mbb_xy] ) )
- mbb_xy -= s->mb_stride;
- }else
- mbb_xy = mb_x + (mb_y-1)*s->mb_stride;
- }else{
- int mb_xy = mb_x + mb_y*s->mb_stride;
- mba_xy = mb_xy - 1;
- mbb_xy = mb_xy - (s->mb_stride << FIELD_PICTURE);
- }
-
- if( h->slice_table[mba_xy] == h->slice_num && !IS_SKIP( s->current_picture.mb_type[mba_xy] ))
- ctx++;
- if( h->slice_table[mbb_xy] == h->slice_num && !IS_SKIP( s->current_picture.mb_type[mbb_xy] ))
- ctx++;
-
- if( h->slice_type == B_TYPE )
- ctx += 13;
- return get_cabac_noinline( &h->cabac, &h->cabac_state[11+ctx] );
-}
-
-static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
- int mode = 0;
-
- if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
- return pred_mode;
-
- mode += 1 * get_cabac( &h->cabac, &h->cabac_state[69] );
- mode += 2 * get_cabac( &h->cabac, &h->cabac_state[69] );
- mode += 4 * get_cabac( &h->cabac, &h->cabac_state[69] );
-
- if( mode >= pred_mode )
- return mode + 1;
- else
- return mode;
-}
-
-static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
- const int mba_xy = h->left_mb_xy[0];
- const int mbb_xy = h->top_mb_xy;
-
- int ctx = 0;
-
- /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
- if( h->slice_table[mba_xy] == h->slice_num && h->chroma_pred_mode_table[mba_xy] != 0 )
- ctx++;
-
- if( h->slice_table[mbb_xy] == h->slice_num && h->chroma_pred_mode_table[mbb_xy] != 0 )
- ctx++;
-
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
- return 0;
-
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
- return 1;
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[64+3] ) == 0 )
- return 2;
- else
- return 3;
-}
-
-static int decode_cabac_mb_cbp_luma( H264Context *h) {
- int cbp_b, cbp_a, ctx, cbp = 0;
-
- cbp_a = h->slice_table[h->left_mb_xy[0]] == h->slice_num ? h->left_cbp : -1;
- cbp_b = h->slice_table[h->top_mb_xy] == h->slice_num ? h->top_cbp : -1;
-
- ctx = !(cbp_a & 0x02) + 2 * !(cbp_b & 0x04);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]);
- ctx = !(cbp & 0x01) + 2 * !(cbp_b & 0x08);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 1;
- ctx = !(cbp_a & 0x08) + 2 * !(cbp & 0x01);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 2;
- ctx = !(cbp & 0x04) + 2 * !(cbp & 0x02);
- cbp |= get_cabac_noinline(&h->cabac, &h->cabac_state[73 + ctx]) << 3;
- return cbp;
-}
-static int decode_cabac_mb_cbp_chroma( H264Context *h) {
- int ctx;
- int cbp_a, cbp_b;
-
- cbp_a = (h->left_cbp>>4)&0x03;
- cbp_b = (h-> top_cbp>>4)&0x03;
-
- ctx = 0;
- if( cbp_a > 0 ) ctx++;
- if( cbp_b > 0 ) ctx += 2;
- if( get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
- return 0;
-
- ctx = 4;
- if( cbp_a == 2 ) ctx++;
- if( cbp_b == 2 ) ctx += 2;
- return 1 + get_cabac_noinline( &h->cabac, &h->cabac_state[77 + ctx] );
-}
-static int decode_cabac_mb_dqp( H264Context *h) {
- int ctx = 0;
- int val = 0;
-
- if( h->last_qscale_diff != 0 )
- ctx++;
-
- while( get_cabac_noinline( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
- if( ctx < 2 )
- ctx = 2;
- else
- ctx = 3;
- val++;
- if(val > 102) //prevent infinite loop
- return INT_MIN;
- }
-
- if( val&0x01 )
- return (val + 1)/2;
- else
- return -(val + 1)/2;
-}
-static int decode_cabac_p_mb_sub_type( H264Context *h ) {
- if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
- return 0; /* 8x8 */
- if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
- return 1; /* 8x4 */
- if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
- return 2; /* 4x8 */
- return 3; /* 4x4 */
-}
-static int decode_cabac_b_mb_sub_type( H264Context *h ) {
- int type;
- if( !get_cabac( &h->cabac, &h->cabac_state[36] ) )
- return 0; /* B_Direct_8x8 */
- if( !get_cabac( &h->cabac, &h->cabac_state[37] ) )
- return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
- type = 3;
- if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) {
- if( get_cabac( &h->cabac, &h->cabac_state[39] ) )
- return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
- type += 4;
- }
- type += 2*get_cabac( &h->cabac, &h->cabac_state[39] );
- type += get_cabac( &h->cabac, &h->cabac_state[39] );
- return type;
-}
-
-static inline int decode_cabac_mb_transform_size( H264Context *h ) {
- return get_cabac_noinline( &h->cabac, &h->cabac_state[399 + h->neighbor_transform_size] );
-}
-
-static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
- int refa = h->ref_cache[list][scan8[n] - 1];
- int refb = h->ref_cache[list][scan8[n] - 8];
- int ref = 0;
- int ctx = 0;
-
- if( h->slice_type == B_TYPE) {
- if( refa > 0 && !h->direct_cache[scan8[n] - 1] )
- ctx++;
- if( refb > 0 && !h->direct_cache[scan8[n] - 8] )
- ctx += 2;
- } else {
- if( refa > 0 )
- ctx++;
- if( refb > 0 )
- ctx += 2;
- }
-
- while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
- ref++;
- if( ctx < 4 )
- ctx = 4;
- else
- ctx = 5;
- if(ref >= 32 /*h->ref_list[list]*/){
- av_log(h->s.avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_ref\n");
- return 0; //FIXME we should return -1 and check the return everywhere
- }
- }
- return ref;
-}
-
-static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
- int amvd = abs( h->mvd_cache[list][scan8[n] - 1][l] ) +
- abs( h->mvd_cache[list][scan8[n] - 8][l] );
- int ctxbase = (l == 0) ? 40 : 47;
- int ctx, mvd;
-
- if( amvd < 3 )
- ctx = 0;
- else if( amvd > 32 )
- ctx = 2;
- else
- ctx = 1;
-
- if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+ctx]))
- return 0;
-
- mvd= 1;
- ctx= 3;
- while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase+ctx] ) ) {
- mvd++;
- if( ctx < 6 )
- ctx++;
- }
-
- if( mvd >= 9 ) {
- int k = 3;
- while( get_cabac_bypass( &h->cabac ) ) {
- mvd += 1 << k;
- k++;
- if(k>24){
- av_log(h->s.avctx, AV_LOG_ERROR, "overflow in decode_cabac_mb_mvd\n");
- return INT_MIN;
- }
- }
- while( k-- ) {
- if( get_cabac_bypass( &h->cabac ) )
- mvd += 1 << k;
- }
- }
- return get_cabac_bypass_sign( &h->cabac, -mvd );
-}
-
-static inline int get_cabac_cbf_ctx( H264Context *h, int cat, int idx ) {
- int nza, nzb;
- int ctx = 0;
-
- if( cat == 0 ) {
- nza = h->left_cbp&0x100;
- nzb = h-> top_cbp&0x100;
- } else if( cat == 1 || cat == 2 ) {
- nza = h->non_zero_count_cache[scan8[idx] - 1];
- nzb = h->non_zero_count_cache[scan8[idx] - 8];
- } else if( cat == 3 ) {
- nza = (h->left_cbp>>(6+idx))&0x01;
- nzb = (h-> top_cbp>>(6+idx))&0x01;
- } else {
- assert(cat == 4);
- nza = h->non_zero_count_cache[scan8[16+idx] - 1];
- nzb = h->non_zero_count_cache[scan8[16+idx] - 8];
- }
-
- if( nza > 0 )
- ctx++;
-
- if( nzb > 0 )
- ctx += 2;
-
- return ctx + 4 * cat;
-}
-
-static const attribute_used uint8_t last_coeff_flag_offset_8x8[63] = {
- 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
- 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4,
- 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8
-};
-
-static void decode_cabac_residual( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, const uint32_t *qmul, int max_coeff) {
- const int mb_xy = h->s.mb_x + h->s.mb_y*h->s.mb_stride;
- static const int significant_coeff_flag_offset[2][6] = {
- { 105+0, 105+15, 105+29, 105+44, 105+47, 402 },
- { 277+0, 277+15, 277+29, 277+44, 277+47, 436 }
- };
- static const int last_coeff_flag_offset[2][6] = {
- { 166+0, 166+15, 166+29, 166+44, 166+47, 417 },
- { 338+0, 338+15, 338+29, 338+44, 338+47, 451 }
- };
- static const int coeff_abs_level_m1_offset[6] = {
- 227+0, 227+10, 227+20, 227+30, 227+39, 426
- };
- static const uint8_t significant_coeff_flag_offset_8x8[2][63] = {
- { 0, 1, 2, 3, 4, 5, 5, 4, 4, 3, 3, 4, 4, 4, 5, 5,
- 4, 4, 4, 4, 3, 3, 6, 7, 7, 7, 8, 9,10, 9, 8, 7,
- 7, 6,11,12,13,11, 6, 7, 8, 9,14,10, 9, 8, 6,11,
- 12,13,11, 6, 9,14,10, 9,11,12,13,11,14,10,12 },
- { 0, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 7, 7, 8, 4, 5,
- 6, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,11,12,11,
- 9, 9,10,10, 8,11,12,11, 9, 9,10,10, 8,13,13, 9,
- 9,10,10, 8,13,13, 9, 9,10,10,14,14,14,14,14 }
- };
-
- int index[64];
-
- int av_unused last;
- int coeff_count = 0;
-
- int abslevel1 = 1;
- int abslevelgt1 = 0;
-
- uint8_t *significant_coeff_ctx_base;
- uint8_t *last_coeff_ctx_base;
- uint8_t *abs_level_m1_ctx_base;
-
-#ifndef ARCH_X86
-#define CABAC_ON_STACK
-#endif
-#ifdef CABAC_ON_STACK
-#define CC &cc
- CABACContext cc;
- cc.range = h->cabac.range;
- cc.low = h->cabac.low;
- cc.bytestream= h->cabac.bytestream;
-#else
-#define CC &h->cabac
-#endif
-
-
- /* cat: 0-> DC 16x16 n = 0
- * 1-> AC 16x16 n = luma4x4idx
- * 2-> Luma4x4 n = luma4x4idx
- * 3-> DC Chroma n = iCbCr
- * 4-> AC Chroma n = 4 * iCbCr + chroma4x4idx
- * 5-> Luma8x8 n = 4 * luma8x8idx
- */
-
- /* read coded block flag */
- if( cat != 5 ) {
- if( get_cabac( CC, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n ) ] ) == 0 ) {
- if( cat == 1 || cat == 2 )
- h->non_zero_count_cache[scan8[n]] = 0;
- else if( cat == 4 )
- h->non_zero_count_cache[scan8[16+n]] = 0;
-#ifdef CABAC_ON_STACK
- h->cabac.range = cc.range ;
- h->cabac.low = cc.low ;
- h->cabac.bytestream= cc.bytestream;
-#endif
- return;
- }
- }
-
- significant_coeff_ctx_base = h->cabac_state
- + significant_coeff_flag_offset[MB_FIELD][cat];
- last_coeff_ctx_base = h->cabac_state
- + last_coeff_flag_offset[MB_FIELD][cat];
- abs_level_m1_ctx_base = h->cabac_state
- + coeff_abs_level_m1_offset[cat];
-
- if( cat == 5 ) {
-#define DECODE_SIGNIFICANCE( coefs, sig_off, last_off ) \
- for(last= 0; last < coefs; last++) { \
- uint8_t *sig_ctx = significant_coeff_ctx_base + sig_off; \
- if( get_cabac( CC, sig_ctx )) { \
- uint8_t *last_ctx = last_coeff_ctx_base + last_off; \
- index[coeff_count++] = last; \
- if( get_cabac( CC, last_ctx ) ) { \
- last= max_coeff; \
- break; \
- } \
- } \
- }\
- if( last == max_coeff -1 ) {\
- index[coeff_count++] = last;\
- }
- const uint8_t *sig_off = significant_coeff_flag_offset_8x8[MB_FIELD];
-#if defined(ARCH_X86) && defined(HAVE_7REGS) && defined(HAVE_EBX_AVAILABLE) && !defined(BROKEN_RELOCATIONS)
- coeff_count= decode_significance_8x8_x86(CC, significant_coeff_ctx_base, index, sig_off);
- } else {
- coeff_count= decode_significance_x86(CC, max_coeff, significant_coeff_ctx_base, index);
-#else
- DECODE_SIGNIFICANCE( 63, sig_off[last], last_coeff_flag_offset_8x8[last] );
- } else {
- DECODE_SIGNIFICANCE( max_coeff - 1, last, last );
-#endif
- }
- assert(coeff_count > 0);
-
- if( cat == 0 )
- h->cbp_table[mb_xy] |= 0x100;
- else if( cat == 1 || cat == 2 )
- h->non_zero_count_cache[scan8[n]] = coeff_count;
- else if( cat == 3 )
- h->cbp_table[mb_xy] |= 0x40 << n;
- else if( cat == 4 )
- h->non_zero_count_cache[scan8[16+n]] = coeff_count;
- else {
- assert( cat == 5 );
- fill_rectangle(&h->non_zero_count_cache[scan8[n]], 2, 2, 8, coeff_count, 1);
- }
-
- for( coeff_count--; coeff_count >= 0; coeff_count-- ) {
- uint8_t *ctx = (abslevelgt1 != 0 ? 0 : FFMIN( 4, abslevel1 )) + abs_level_m1_ctx_base;
- int j= scantable[index[coeff_count]];
-
- if( get_cabac( CC, ctx ) == 0 ) {
- if( !qmul ) {
- block[j] = get_cabac_bypass_sign( CC, -1);
- }else{
- block[j] = (get_cabac_bypass_sign( CC, -qmul[j]) + 32) >> 6;;
- }
-
- abslevel1++;
- } else {
- int coeff_abs = 2;
- ctx = 5 + FFMIN( 4, abslevelgt1 ) + abs_level_m1_ctx_base;
- while( coeff_abs < 15 && get_cabac( CC, ctx ) ) {
- coeff_abs++;
- }
-
- if( coeff_abs >= 15 ) {
- int j = 0;
- while( get_cabac_bypass( CC ) ) {
- j++;
- }
-
- coeff_abs=1;
- while( j-- ) {
- coeff_abs += coeff_abs + get_cabac_bypass( CC );
- }
- coeff_abs+= 14;
- }
-
- if( !qmul ) {
- if( get_cabac_bypass( CC ) ) block[j] = -coeff_abs;
- else block[j] = coeff_abs;
- }else{
- if( get_cabac_bypass( CC ) ) block[j] = (-coeff_abs * qmul[j] + 32) >> 6;
- else block[j] = ( coeff_abs * qmul[j] + 32) >> 6;
- }
-
- abslevelgt1++;
- }
- }
-#ifdef CABAC_ON_STACK
- h->cabac.range = cc.range ;
- h->cabac.low = cc.low ;
- h->cabac.bytestream= cc.bytestream;
-#endif
-
-}
-
-static inline void compute_mb_neighbors(H264Context *h)
-{
- MpegEncContext * const s = &h->s;
- const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
- h->top_mb_xy = mb_xy - s->mb_stride;
- h->left_mb_xy[0] = mb_xy - 1;
- if(FRAME_MBAFF){
- const int pair_xy = s->mb_x + (s->mb_y & ~1)*s->mb_stride;
- const int top_pair_xy = pair_xy - s->mb_stride;
- const int top_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[top_pair_xy]);
- const int left_mb_frame_flag = !IS_INTERLACED(s->current_picture.mb_type[pair_xy-1]);
- const int curr_mb_frame_flag = !MB_FIELD;
- const int bottom = (s->mb_y & 1);
- if (bottom
- ? !curr_mb_frame_flag // bottom macroblock
- : (!curr_mb_frame_flag && !top_mb_frame_flag) // top macroblock
- ) {
- h->top_mb_xy -= s->mb_stride;
- }
- if (left_mb_frame_flag != curr_mb_frame_flag) {
- h->left_mb_xy[0] = pair_xy - 1;
- }
- } else if (FIELD_PICTURE) {
- h->top_mb_xy -= s->mb_stride;
- }
- return;
-}
-
-/**
- * decodes a macroblock
- * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
- */
-static int decode_mb_cabac(H264Context *h) {
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
- int mb_type, partition_count, cbp = 0;
- int dct8x8_allowed= h->pps.transform_8x8_mode;
-
- s->dsp.clear_blocks(h->mb); //FIXME avoid if already clear (move after skip handlong?)
-
- tprintf(s->avctx, "pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
- if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE ) {
- int skip;
- /* a skipped mb needs the aff flag from the following mb */
- if( FRAME_MBAFF && s->mb_x==0 && (s->mb_y&1)==0 )
- predict_field_decoding_flag(h);
- if( FRAME_MBAFF && (s->mb_y&1)==1 && h->prev_mb_skipped )
- skip = h->next_mb_skipped;
- else
- skip = decode_cabac_mb_skip( h, s->mb_x, s->mb_y );
- /* read skip flags */
- if( skip ) {
- if( FRAME_MBAFF && (s->mb_y&1)==0 ){
- s->current_picture.mb_type[mb_xy] = MB_TYPE_SKIP;
- h->next_mb_skipped = decode_cabac_mb_skip( h, s->mb_x, s->mb_y+1 );
- if(h->next_mb_skipped)
- predict_field_decoding_flag(h);
- else
- h->mb_mbaff = h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
- }
-
- decode_mb_skip(h);
-
- h->cbp_table[mb_xy] = 0;
- h->chroma_pred_mode_table[mb_xy] = 0;
- h->last_qscale_diff = 0;
-
- return 0;
-
- }
- }
- if(FRAME_MBAFF){
- if( (s->mb_y&1) == 0 )
- h->mb_mbaff =
- h->mb_field_decoding_flag = decode_cabac_field_decoding_flag(h);
- }else
- h->mb_field_decoding_flag= (s->picture_structure!=PICT_FRAME);
-
- h->prev_mb_skipped = 0;
-
- compute_mb_neighbors(h);
- if( ( mb_type = decode_cabac_mb_type( h ) ) < 0 ) {
- av_log( h->s.avctx, AV_LOG_ERROR, "decode_cabac_mb_type failed\n" );
- return -1;
- }
-
- if( h->slice_type == B_TYPE ) {
- if( mb_type < 23 ){
- partition_count= b_mb_type_info[mb_type].partition_count;
- mb_type= b_mb_type_info[mb_type].type;
- }else{
- mb_type -= 23;
- goto decode_intra_mb;
- }
- } else if( h->slice_type == P_TYPE ) {
- if( mb_type < 5) {
- partition_count= p_mb_type_info[mb_type].partition_count;
- mb_type= p_mb_type_info[mb_type].type;
- } else {
- mb_type -= 5;
- goto decode_intra_mb;
- }
- } else {
- assert(h->slice_type == I_TYPE);
-decode_intra_mb:
- partition_count = 0;
- cbp= i_mb_type_info[mb_type].cbp;
- h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
- mb_type= i_mb_type_info[mb_type].type;
- }
- if(MB_FIELD)
- mb_type |= MB_TYPE_INTERLACED;
-
- h->slice_table[ mb_xy ]= h->slice_num;
-
- if(IS_INTRA_PCM(mb_type)) {
- const uint8_t *ptr;
- unsigned int x, y;
-
- // We assume these blocks are very rare so we do not optimize it.
- // FIXME The two following lines get the bitstream position in the cabac
- // decode, I think it should be done by a function in cabac.h (or cabac.c).
- ptr= h->cabac.bytestream;
- if(h->cabac.low&0x1) ptr--;
- if(CABAC_BITS==16){
- if(h->cabac.low&0x1FF) ptr--;
- }
-
- // The pixels are stored in the same order as levels in h->mb array.
- for(y=0; y<16; y++){
- const int index= 4*(y&3) + 32*((y>>2)&1) + 128*(y>>3);
- for(x=0; x<16; x++){
- tprintf(s->avctx, "LUMA ICPM LEVEL (%3d)\n", *ptr);
- h->mb[index + (x&3) + 16*((x>>2)&1) + 64*(x>>3)]= *ptr++;
- }
- }
- for(y=0; y<8; y++){
- const int index= 256 + 4*(y&3) + 32*(y>>2);
- for(x=0; x<8; x++){
- tprintf(s->avctx, "CHROMA U ICPM LEVEL (%3d)\n", *ptr);
- h->mb[index + (x&3) + 16*(x>>2)]= *ptr++;
- }
- }
- for(y=0; y<8; y++){
- const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
- for(x=0; x<8; x++){
- tprintf(s->avctx, "CHROMA V ICPM LEVEL (%3d)\n", *ptr);
- h->mb[index + (x&3) + 16*(x>>2)]= *ptr++;
- }
- }
-
- ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);
-
- // All blocks are present
- h->cbp_table[mb_xy] = 0x1ef;
- h->chroma_pred_mode_table[mb_xy] = 0;
- // In deblocking, the quantizer is 0
- s->current_picture.qscale_table[mb_xy]= 0;
- h->chroma_qp[0] = get_chroma_qp(h, 0, 0);
- h->chroma_qp[1] = get_chroma_qp(h, 1, 0);
- // All coeffs are present
- memset(h->non_zero_count[mb_xy], 16, 16);
- s->current_picture.mb_type[mb_xy]= mb_type;
- return 0;
- }
-
- if(MB_MBAFF){
- h->ref_count[0] <<= 1;
- h->ref_count[1] <<= 1;
- }
-
- fill_caches(h, mb_type, 0);
-
- if( IS_INTRA( mb_type ) ) {
- int i, pred_mode;
- if( IS_INTRA4x4( mb_type ) ) {
- if( dct8x8_allowed && decode_cabac_mb_transform_size( h ) ) {
- mb_type |= MB_TYPE_8x8DCT;
- for( i = 0; i < 16; i+=4 ) {
- int pred = pred_intra_mode( h, i );
- int mode = decode_cabac_mb_intra4x4_pred_mode( h, pred );
- fill_rectangle( &h->intra4x4_pred_mode_cache[ scan8[i] ], 2, 2, 8, mode, 1 );
- }
- } else {
- for( i = 0; i < 16; i++ ) {
- int pred = pred_intra_mode( h, i );
- h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
-
- //av_log( s->avctx, AV_LOG_ERROR, "i4x4 pred=%d mode=%d\n", pred, h->intra4x4_pred_mode_cache[ scan8[i] ] );
- }
- }
- write_back_intra_pred_mode(h);
- if( check_intra4x4_pred_mode(h) < 0 ) return -1;
- } else {
- h->intra16x16_pred_mode= check_intra_pred_mode( h, h->intra16x16_pred_mode );
- if( h->intra16x16_pred_mode < 0 ) return -1;
- }
- h->chroma_pred_mode_table[mb_xy] =
- pred_mode = decode_cabac_mb_chroma_pre_mode( h );
-
- pred_mode= check_intra_pred_mode( h, pred_mode );
- if( pred_mode < 0 ) return -1;
- h->chroma_pred_mode= pred_mode;
- } else if( partition_count == 4 ) {
- int i, j, sub_partition_count[4], list, ref[2][4];
-
- if( h->slice_type == B_TYPE ) {
- for( i = 0; i < 4; i++ ) {
- h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
- sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- if( IS_DIRECT(h->sub_mb_type[0] | h->sub_mb_type[1] |
- h->sub_mb_type[2] | h->sub_mb_type[3]) ) {
- pred_direct_motion(h, &mb_type);
- h->ref_cache[0][scan8[4]] =
- h->ref_cache[1][scan8[4]] =
- h->ref_cache[0][scan8[12]] =
- h->ref_cache[1][scan8[12]] = PART_NOT_AVAILABLE;
- if( h->ref_count[0] > 1 || h->ref_count[1] > 1 ) {
- for( i = 0; i < 4; i++ )
- if( IS_DIRECT(h->sub_mb_type[i]) )
- fill_rectangle( &h->direct_cache[scan8[4*i]], 2, 2, 8, 1, 1 );
- }
- }
- } else {
- for( i = 0; i < 4; i++ ) {
- h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
- sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
- h->sub_mb_type[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
- }
- }
-
- for( list = 0; list < h->list_count; list++ ) {
- for( i = 0; i < 4; i++ ) {
- if(IS_DIRECT(h->sub_mb_type[i])) continue;
- if(IS_DIR(h->sub_mb_type[i], 0, list)){
- if( h->ref_count[list] > 1 )
- ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
- else
- ref[list][i] = 0;
- } else {
- ref[list][i] = -1;
- }
- h->ref_cache[list][ scan8[4*i]+1 ]=
- h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
- }
- }
-
- if(dct8x8_allowed)
- dct8x8_allowed = get_dct8x8_allowed(h);
-
- for(list=0; list<h->list_count; list++){
- for(i=0; i<4; i++){
- h->ref_cache[list][ scan8[4*i] ]=h->ref_cache[list][ scan8[4*i]+1 ];
- if(IS_DIRECT(h->sub_mb_type[i])){
- fill_rectangle(h->mvd_cache[list][scan8[4*i]], 2, 2, 8, 0, 4);
- continue;
- }
-
- if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
- const int sub_mb_type= h->sub_mb_type[i];
- const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
- for(j=0; j<sub_partition_count[i]; j++){
- int mpx, mpy;
- int mx, my;
- const int index= 4*i + block_width*j;
- int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
- int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
- pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);
-
- mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- if(IS_SUB_8X8(sub_mb_type)){
- mv_cache[ 1 ][0]=
- mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
- mv_cache[ 1 ][1]=
- mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
-
- mvd_cache[ 1 ][0]=
- mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;
- mvd_cache[ 1 ][1]=
- mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;
- }else if(IS_SUB_8X4(sub_mb_type)){
- mv_cache[ 1 ][0]= mx;
- mv_cache[ 1 ][1]= my;
-
- mvd_cache[ 1 ][0]= mx - mpx;
- mvd_cache[ 1 ][1]= my - mpy;
- }else if(IS_SUB_4X8(sub_mb_type)){
- mv_cache[ 8 ][0]= mx;
- mv_cache[ 8 ][1]= my;
-
- mvd_cache[ 8 ][0]= mx - mpx;
- mvd_cache[ 8 ][1]= my - mpy;
- }
- mv_cache[ 0 ][0]= mx;
- mv_cache[ 0 ][1]= my;
-
- mvd_cache[ 0 ][0]= mx - mpx;
- mvd_cache[ 0 ][1]= my - mpy;
- }
- }else{
- uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
- uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
- p[0] = p[1] = p[8] = p[9] = 0;
- pd[0]= pd[1]= pd[8]= pd[9]= 0;
- }
- }
- }
- } else if( IS_DIRECT(mb_type) ) {
- pred_direct_motion(h, &mb_type);
- fill_rectangle(h->mvd_cache[0][scan8[0]], 4, 4, 8, 0, 4);
- fill_rectangle(h->mvd_cache[1][scan8[0]], 4, 4, 8, 0, 4);
- dct8x8_allowed &= h->sps.direct_8x8_inference_flag;
- } else {
- int list, mx, my, i, mpx, mpy;
- if(IS_16X16(mb_type)){
- for(list=0; list<h->list_count; list++){
- if(IS_DIR(mb_type, 0, list)){
- const int ref = h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 0 ) : 0;
- fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
- }else
- fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, (uint8_t)LIST_NOT_USED, 1); //FIXME factorize and the other fill_rect below too
- }
- for(list=0; list<h->list_count; list++){
- if(IS_DIR(mb_type, 0, list)){
- pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);
-
- mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
- fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
- }else
- fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, 0, 4);
- }
- }
- else if(IS_16X8(mb_type)){
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){
- const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 8*i ) : 0;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
- }else
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, (LIST_NOT_USED&0xFF), 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){
- pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mpx, &mpy);
- mx = mpx + decode_cabac_mb_mvd( h, list, 8*i, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, 8*i, 1 );
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
-
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx-mpx,my-mpy), 4);
- fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
- }else{
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
- fill_rectangle(h-> mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, 0, 4);
- }
- }
- }
- }else{
- assert(IS_8X16(mb_type));
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){ //FIXME optimize
- const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 4*i ) : 0;
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, ref, 1);
- }else
- fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, (LIST_NOT_USED&0xFF), 1);
- }
- }
- for(list=0; list<h->list_count; list++){
- for(i=0; i<2; i++){
- if(IS_DIR(mb_type, i, list)){
- pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mpx, &mpy);
- mx = mpx + decode_cabac_mb_mvd( h, list, 4*i, 0 );
- my = mpy + decode_cabac_mb_mvd( h, list, 4*i, 1 );
-
- tprintf(s->avctx, "final mv:%d %d\n", mx, my);
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
- fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
- }else{
- fill_rectangle(h->mvd_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
- fill_rectangle(h-> mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, 0, 4);
- }
- }
- }
- }
- }
-
- if( IS_INTER( mb_type ) ) {
- h->chroma_pred_mode_table[mb_xy] = 0;
- write_back_motion( h, mb_type );
- }
-
- if( !IS_INTRA16x16( mb_type ) ) {
- cbp = decode_cabac_mb_cbp_luma( h );
- cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
- }
-
- h->cbp_table[mb_xy] = h->cbp = cbp;
-
- if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
- if( decode_cabac_mb_transform_size( h ) )
- mb_type |= MB_TYPE_8x8DCT;
- }
- s->current_picture.mb_type[mb_xy]= mb_type;
-
- if( cbp || IS_INTRA16x16( mb_type ) ) {
- const uint8_t *scan, *scan8x8, *dc_scan;
- const uint32_t *qmul;
- int dqp;
-
- if(IS_INTERLACED(mb_type)){
- scan8x8= s->qscale ? h->field_scan8x8 : h->field_scan8x8_q0;
- scan= s->qscale ? h->field_scan : h->field_scan_q0;
- dc_scan= luma_dc_field_scan;
- }else{
- scan8x8= s->qscale ? h->zigzag_scan8x8 : h->zigzag_scan8x8_q0;
- scan= s->qscale ? h->zigzag_scan : h->zigzag_scan_q0;
- dc_scan= luma_dc_zigzag_scan;
- }
-
- h->last_qscale_diff = dqp = decode_cabac_mb_dqp( h );
- if( dqp == INT_MIN ){
- av_log(h->s.avctx, AV_LOG_ERROR, "cabac decode of qscale diff failed at %d %d\n", s->mb_x, s->mb_y);
- return -1;
- }
- s->qscale += dqp;
- if(((unsigned)s->qscale) > 51){
- if(s->qscale<0) s->qscale+= 52;
- else s->qscale-= 52;
- }
- h->chroma_qp[0] = get_chroma_qp(h, 0, s->qscale);
- h->chroma_qp[1] = get_chroma_qp(h, 1, s->qscale);
-
- if( IS_INTRA16x16( mb_type ) ) {
- int i;
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 DC\n" );
- decode_cabac_residual( h, h->mb, 0, 0, dc_scan, NULL, 16);
-
- if( cbp&15 ) {
- qmul = h->dequant4_coeff[0][s->qscale];
- for( i = 0; i < 16; i++ ) {
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA16x16 AC:%d\n", i );
- decode_cabac_residual(h, h->mb + 16*i, 1, i, scan + 1, qmul, 15);
- }
- } else {
- fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
- }
- } else {
- int i8x8, i4x4;
- for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
- if( cbp & (1<<i8x8) ) {
- if( IS_8x8DCT(mb_type) ) {
- decode_cabac_residual(h, h->mb + 64*i8x8, 5, 4*i8x8,
- scan8x8, h->dequant8_coeff[IS_INTRA( mb_type ) ? 0:1][s->qscale], 64);
- } else {
- qmul = h->dequant4_coeff[IS_INTRA( mb_type ) ? 0:3][s->qscale];
- for( i4x4 = 0; i4x4 < 4; i4x4++ ) {
- const int index = 4*i8x8 + i4x4;
- //av_log( s->avctx, AV_LOG_ERROR, "Luma4x4: %d\n", index );
-//START_TIMER
- decode_cabac_residual(h, h->mb + 16*index, 2, index, scan, qmul, 16);
-//STOP_TIMER("decode_residual")
- }
- }
- } else {
- uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
- nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
- }
- }
- }
-
- if( cbp&0x30 ){
- int c;
- for( c = 0; c < 2; c++ ) {
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-DC\n",c );
- decode_cabac_residual(h, h->mb + 256 + 16*4*c, 3, c, chroma_dc_scan, NULL, 4);
- }
- }
-
- if( cbp&0x20 ) {
- int c, i;
- for( c = 0; c < 2; c++ ) {
- qmul = h->dequant4_coeff[c+1+(IS_INTRA( mb_type ) ? 0:3)][h->chroma_qp[c]];
- for( i = 0; i < 4; i++ ) {
- const int index = 16 + 4 * c + i;
- //av_log( s->avctx, AV_LOG_ERROR, "INTRA C%d-AC %d\n",c, index - 16 );
- decode_cabac_residual(h, h->mb + 16*index, 4, index - 16, scan + 1, qmul, 15);
- }
- }
- } else {
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- }
- } else {
- uint8_t * const nnz= &h->non_zero_count_cache[0];
- fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
- nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
- nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
- h->last_qscale_diff = 0;
- }
-
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- write_back_non_zero_count(h);
-
- if(MB_MBAFF){
- h->ref_count[0] >>= 1;
- h->ref_count[1] >>= 1;
- }
-
- return 0;
-}
-
-
-static void filter_mb_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
- int i, d;
- const int index_a = qp + h->slice_alpha_c0_offset;
- const int alpha = (alpha_table+52)[index_a];
- const int beta = (beta_table+52)[qp + h->slice_beta_offset];
-
- if( bS[0] < 4 ) {
- int8_t tc[4];
- for(i=0; i<4; i++)
- tc[i] = bS[i] ? (tc0_table+52)[index_a][bS[i] - 1] : -1;
- h->s.dsp.h264_h_loop_filter_luma(pix, stride, alpha, beta, tc);
- } else {
- /* 16px edge length, because bS=4 is triggered by being at
- * the edge of an intra MB, so all 4 bS are the same */
- for( d = 0; d < 16; d++ ) {
- const int p0 = pix[-1];
- const int p1 = pix[-2];
- const int p2 = pix[-3];
-
- const int q0 = pix[0];
- const int q1 = pix[1];
- const int q2 = pix[2];
-
- if( FFABS( p0 - q0 ) < alpha &&
- FFABS( p1 - p0 ) < beta &&
- FFABS( q1 - q0 ) < beta ) {
-
- if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
- if( FFABS( p2 - p0 ) < beta)
- {
- const int p3 = pix[-4];
- /* p0', p1', p2' */
- pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
- pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
- pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
- } else {
- /* p0' */
- pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- }
- if( FFABS( q2 - q0 ) < beta)
- {
- const int q3 = pix[3];
- /* q0', q1', q2' */
- pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
- pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
- pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
- } else {
- /* q0' */
- pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- }else{
- /* p0', q0' */
- pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- tprintf(h->s.avctx, "filter_mb_edgev i:%d d:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, d, p2, p1, p0, q0, q1, q2, pix[-2], pix[-1], pix[0], pix[1]);
- }
- pix += stride;
- }
- }
-}
-static void filter_mb_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
- int i;
- const int index_a = qp + h->slice_alpha_c0_offset;
- const int alpha = (alpha_table+52)[index_a];
- const int beta = (beta_table+52)[qp + h->slice_beta_offset];
-
- if( bS[0] < 4 ) {
- int8_t tc[4];
- for(i=0; i<4; i++)
- tc[i] = bS[i] ? (tc0_table+52)[index_a][bS[i] - 1] + 1 : 0;
- h->s.dsp.h264_h_loop_filter_chroma(pix, stride, alpha, beta, tc);
- } else {
- h->s.dsp.h264_h_loop_filter_chroma_intra(pix, stride, alpha, beta);
- }
-}
-
-static void filter_mb_mbaff_edgev( H264Context *h, uint8_t *pix, int stride, int16_t bS[8], int qp[2] ) {
- int i;
- for( i = 0; i < 16; i++, pix += stride) {
- int index_a;
- int alpha;
- int beta;
-
- int qp_index;
- int bS_index = (i >> 1);
- if (!MB_FIELD) {
- bS_index &= ~1;
- bS_index |= (i & 1);
- }
-
- if( bS[bS_index] == 0 ) {
- continue;
- }
-
- qp_index = MB_FIELD ? (i >> 3) : (i & 1);
- index_a = qp[qp_index] + h->slice_alpha_c0_offset;
- alpha = (alpha_table+52)[index_a];
- beta = (beta_table+52)[qp[qp_index] + h->slice_beta_offset];
-
- if( bS[bS_index] < 4 ) {
- const int tc0 = (tc0_table+52)[index_a][bS[bS_index] - 1];
- const int p0 = pix[-1];
- const int p1 = pix[-2];
- const int p2 = pix[-3];
- const int q0 = pix[0];
- const int q1 = pix[1];
- const int q2 = pix[2];
-
- if( FFABS( p0 - q0 ) < alpha &&
- FFABS( p1 - p0 ) < beta &&
- FFABS( q1 - q0 ) < beta ) {
- int tc = tc0;
- int i_delta;
-
- if( FFABS( p2 - p0 ) < beta ) {
- pix[-2] = p1 + av_clip( ( p2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( p1 << 1 ) ) >> 1, -tc0, tc0 );
- tc++;
- }
- if( FFABS( q2 - q0 ) < beta ) {
- pix[1] = q1 + av_clip( ( q2 + ( ( p0 + q0 + 1 ) >> 1 ) - ( q1 << 1 ) ) >> 1, -tc0, tc0 );
- tc++;
- }
-
- i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
- pix[-1] = av_clip_uint8( p0 + i_delta ); /* p0' */
- pix[0] = av_clip_uint8( q0 - i_delta ); /* q0' */
- tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, tc, bS[bS_index], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);
- }
- }else{
- const int p0 = pix[-1];
- const int p1 = pix[-2];
- const int p2 = pix[-3];
-
- const int q0 = pix[0];
- const int q1 = pix[1];
- const int q2 = pix[2];
-
- if( FFABS( p0 - q0 ) < alpha &&
- FFABS( p1 - p0 ) < beta &&
- FFABS( q1 - q0 ) < beta ) {
-
- if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
- if( FFABS( p2 - p0 ) < beta)
- {
- const int p3 = pix[-4];
- /* p0', p1', p2' */
- pix[-1] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
- pix[-2] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
- pix[-3] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
- } else {
- /* p0' */
- pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- }
- if( FFABS( q2 - q0 ) < beta)
- {
- const int q3 = pix[3];
- /* q0', q1', q2' */
- pix[0] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
- pix[1] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
- pix[2] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
- } else {
- /* q0' */
- pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- }else{
- /* p0', q0' */
- pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- pix[ 0] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- tprintf(h->s.avctx, "filter_mb_mbaff_edgev i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, p2, p1, p0, q0, q1, q2, pix[-3], pix[-2], pix[-1], pix[0], pix[1], pix[2]);
- }
- }
- }
-}
-static void filter_mb_mbaff_edgecv( H264Context *h, uint8_t *pix, int stride, int16_t bS[8], int qp[2] ) {
- int i;
- for( i = 0; i < 8; i++, pix += stride) {
- int index_a;
- int alpha;
- int beta;
-
- int qp_index;
- int bS_index = i;
-
- if( bS[bS_index] == 0 ) {
- continue;
- }
-
- qp_index = MB_FIELD ? (i >> 2) : (i & 1);
- index_a = qp[qp_index] + h->slice_alpha_c0_offset;
- alpha = (alpha_table+52)[index_a];
- beta = (beta_table+52)[qp[qp_index] + h->slice_beta_offset];
-
- if( bS[bS_index] < 4 ) {
- const int tc = (tc0_table+52)[index_a][bS[bS_index] - 1] + 1;
- const int p0 = pix[-1];
- const int p1 = pix[-2];
- const int q0 = pix[0];
- const int q1 = pix[1];
-
- if( FFABS( p0 - q0 ) < alpha &&
- FFABS( p1 - p0 ) < beta &&
- FFABS( q1 - q0 ) < beta ) {
- const int i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc );
-
- pix[-1] = av_clip_uint8( p0 + i_delta ); /* p0' */
- pix[0] = av_clip_uint8( q0 - i_delta ); /* q0' */
- tprintf(h->s.avctx, "filter_mb_mbaff_edgecv i:%d, qp:%d, indexA:%d, alpha:%d, beta:%d, tc:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, qp[qp_index], index_a, alpha, beta, tc, bS[bS_index], pix[-3], p1, p0, q0, q1, pix[2], p1, pix[-1], pix[0], q1);
- }
- }else{
- const int p0 = pix[-1];
- const int p1 = pix[-2];
- const int q0 = pix[0];
- const int q1 = pix[1];
-
- if( FFABS( p0 - q0 ) < alpha &&
- FFABS( p1 - p0 ) < beta &&
- FFABS( q1 - q0 ) < beta ) {
-
- pix[-1] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */
- pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */
- tprintf(h->s.avctx, "filter_mb_mbaff_edgecv i:%d\n# bS:4 -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x, %02x, %02x]\n", i, pix[-3], p1, p0, q0, q1, pix[2], pix[-3], pix[-2], pix[-1], pix[0], pix[1], pix[2]);
- }
- }
- }
-}
-
-static void filter_mb_edgeh( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
- int i, d;
- const int index_a = qp + h->slice_alpha_c0_offset;
- const int alpha = (alpha_table+52)[index_a];
- const int beta = (beta_table+52)[qp + h->slice_beta_offset];
- const int pix_next = stride;
-
- if( bS[0] < 4 ) {
- int8_t tc[4];
- for(i=0; i<4; i++)
- tc[i] = bS[i] ? (tc0_table+52)[index_a][bS[i] - 1] : -1;
- h->s.dsp.h264_v_loop_filter_luma(pix, stride, alpha, beta, tc);
- } else {
- /* 16px edge length, see filter_mb_edgev */
- for( d = 0; d < 16; d++ ) {
- const int p0 = pix[-1*pix_next];
- const int p1 = pix[-2*pix_next];
- const int p2 = pix[-3*pix_next];
- const int q0 = pix[0];
- const int q1 = pix[1*pix_next];
- const int q2 = pix[2*pix_next];
-
- if( FFABS( p0 - q0 ) < alpha &&
- FFABS( p1 - p0 ) < beta &&
- FFABS( q1 - q0 ) < beta ) {
-
- const int p3 = pix[-4*pix_next];
- const int q3 = pix[ 3*pix_next];
-
- if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
- if( FFABS( p2 - p0 ) < beta) {
- /* p0', p1', p2' */
- pix[-1*pix_next] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
- pix[-2*pix_next] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
- pix[-3*pix_next] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
- } else {
- /* p0' */
- pix[-1*pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- }
- if( FFABS( q2 - q0 ) < beta) {
- /* q0', q1', q2' */
- pix[0*pix_next] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
- pix[1*pix_next] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
- pix[2*pix_next] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
- } else {
- /* q0' */
- pix[0*pix_next] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- }else{
- /* p0', q0' */
- pix[-1*pix_next] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
- pix[ 0*pix_next] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
- }
- tprintf(h->s.avctx, "filter_mb_edgeh i:%d d:%d, qp:%d, indexA:%d, alpha:%d, beta:%d\n# bS:%d -> [%02x, %02x, %02x, %02x, %02x, %02x] =>[%02x, %02x, %02x, %02x]\n", i, d, qp, index_a, alpha, beta, bS[i], p2, p1, p0, q0, q1, q2, pix[-2*pix_next], pix[-pix_next], pix[0], pix[pix_next]);
- }
- pix++;
- }
- }
-}
-
-static void filter_mb_edgech( H264Context *h, uint8_t *pix, int stride, int16_t bS[4], int qp ) {
- int i;
- const int index_a = qp + h->slice_alpha_c0_offset;
- const int alpha = (alpha_table+52)[index_a];
- const int beta = (beta_table+52)[qp + h->slice_beta_offset];
-
- if( bS[0] < 4 ) {
- int8_t tc[4];
- for(i=0; i<4; i++)
- tc[i] = bS[i] ? (tc0_table+52)[index_a][bS[i] - 1] + 1 : 0;
- h->s.dsp.h264_v_loop_filter_chroma(pix, stride, alpha, beta, tc);
- } else {
- h->s.dsp.h264_v_loop_filter_chroma_intra(pix, stride, alpha, beta);
- }
-}
-
-static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {
- MpegEncContext * const s = &h->s;
- int mb_y_firstrow = s->picture_structure == PICT_BOTTOM_FIELD;
- int mb_xy, mb_type;
- int qp, qp0, qp1, qpc, qpc0, qpc1, qp_thresh;
-
- mb_xy = mb_x + mb_y*s->mb_stride;
-
- if(mb_x==0 || mb_y==mb_y_firstrow || !s->dsp.h264_loop_filter_strength || h->pps.chroma_qp_diff ||
- (h->deblocking_filter == 2 && (h->slice_table[mb_xy] != h->slice_table[h->top_mb_xy] ||
- h->slice_table[mb_xy] != h->slice_table[mb_xy - 1]))) {
- filter_mb(h, mb_x, mb_y, img_y, img_cb, img_cr, linesize, uvlinesize);
- return;
- }
- assert(!FRAME_MBAFF);
-
- mb_type = s->current_picture.mb_type[mb_xy];
- qp = s->current_picture.qscale_table[mb_xy];
- qp0 = s->current_picture.qscale_table[mb_xy-1];
- qp1 = s->current_picture.qscale_table[h->top_mb_xy];
- qpc = get_chroma_qp( h, 0, qp );
- qpc0 = get_chroma_qp( h, 0, qp0 );
- qpc1 = get_chroma_qp( h, 0, qp1 );
- qp0 = (qp + qp0 + 1) >> 1;
- qp1 = (qp + qp1 + 1) >> 1;
- qpc0 = (qpc + qpc0 + 1) >> 1;
- qpc1 = (qpc + qpc1 + 1) >> 1;
- qp_thresh = 15 - h->slice_alpha_c0_offset;
- if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
- qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
- return;
-
- if( IS_INTRA(mb_type) ) {
- int16_t bS4[4] = {4,4,4,4};
- int16_t bS3[4] = {3,3,3,3};
- int16_t *bSH = FIELD_PICTURE ? bS3 : bS4;
- if( IS_8x8DCT(mb_type) ) {
- filter_mb_edgev( h, &img_y[4*0], linesize, bS4, qp0 );
- filter_mb_edgev( h, &img_y[4*2], linesize, bS3, qp );
- filter_mb_edgeh( h, &img_y[4*0*linesize], linesize, bSH, qp1 );
- filter_mb_edgeh( h, &img_y[4*2*linesize], linesize, bS3, qp );
- } else {
- filter_mb_edgev( h, &img_y[4*0], linesize, bS4, qp0 );
- filter_mb_edgev( h, &img_y[4*1], linesize, bS3, qp );
- filter_mb_edgev( h, &img_y[4*2], linesize, bS3, qp );
- filter_mb_edgev( h, &img_y[4*3], linesize, bS3, qp );
- filter_mb_edgeh( h, &img_y[4*0*linesize], linesize, bSH, qp1 );
- filter_mb_edgeh( h, &img_y[4*1*linesize], linesize, bS3, qp );
- filter_mb_edgeh( h, &img_y[4*2*linesize], linesize, bS3, qp );
- filter_mb_edgeh( h, &img_y[4*3*linesize], linesize, bS3, qp );
- }
- filter_mb_edgecv( h, &img_cb[2*0], uvlinesize, bS4, qpc0 );
- filter_mb_edgecv( h, &img_cb[2*2], uvlinesize, bS3, qpc );
- filter_mb_edgecv( h, &img_cr[2*0], uvlinesize, bS4, qpc0 );
- filter_mb_edgecv( h, &img_cr[2*2], uvlinesize, bS3, qpc );
- filter_mb_edgech( h, &img_cb[2*0*uvlinesize], uvlinesize, bSH, qpc1 );
- filter_mb_edgech( h, &img_cb[2*2*uvlinesize], uvlinesize, bS3, qpc );
- filter_mb_edgech( h, &img_cr[2*0*uvlinesize], uvlinesize, bSH, qpc1 );
- filter_mb_edgech( h, &img_cr[2*2*uvlinesize], uvlinesize, bS3, qpc );
- return;
- } else {
- DECLARE_ALIGNED_8(int16_t, bS[2][4][4]);
- uint64_t (*bSv)[4] = (uint64_t(*)[4])bS;
- int edges;
- if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {
- edges = 4;
- bSv[0][0] = bSv[0][2] = bSv[1][0] = bSv[1][2] = 0x0002000200020002ULL;
- } else {
- int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
- (mb_type & MB_TYPE_16x8) ? 1 : 0;
- int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
- && (s->current_picture.mb_type[mb_xy-1] & (MB_TYPE_16x16 | MB_TYPE_8x16))
- ? 3 : 0;
- int step = IS_8x8DCT(mb_type) ? 2 : 1;
- edges = (mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;
- s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
- (h->slice_type == B_TYPE), edges, step, mask_edge0, mask_edge1 );
- }
- if( IS_INTRA(s->current_picture.mb_type[mb_xy-1]) )
- bSv[0][0] = 0x0004000400040004ULL;
- if( IS_INTRA(s->current_picture.mb_type[h->top_mb_xy]) )
- bSv[1][0] = FIELD_PICTURE ? 0x0003000300030003ULL : 0x0004000400040004ULL;
-
-#define FILTER(hv,dir,edge)\
- if(bSv[dir][edge]) {\
- filter_mb_edge##hv( h, &img_y[4*edge*(dir?linesize:1)], linesize, bS[dir][edge], edge ? qp : qp##dir );\
- if(!(edge&1)) {\
- filter_mb_edgec##hv( h, &img_cb[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir );\
- filter_mb_edgec##hv( h, &img_cr[2*edge*(dir?uvlinesize:1)], uvlinesize, bS[dir][edge], edge ? qpc : qpc##dir );\
- }\
- }
- if( edges == 1 ) {
- FILTER(v,0,0);
- FILTER(h,1,0);
- } else if( IS_8x8DCT(mb_type) ) {
- FILTER(v,0,0);
- FILTER(v,0,2);
- FILTER(h,1,0);
- FILTER(h,1,2);
- } else {
- FILTER(v,0,0);
- FILTER(v,0,1);
- FILTER(v,0,2);
- FILTER(v,0,3);
- FILTER(h,1,0);
- FILTER(h,1,1);
- FILTER(h,1,2);
- FILTER(h,1,3);
- }
-#undef FILTER
- }
-}
-
-static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize) {
- MpegEncContext * const s = &h->s;
- const int mb_xy= mb_x + mb_y*s->mb_stride;
- const int mb_type = s->current_picture.mb_type[mb_xy];
- const int mvy_limit = IS_INTERLACED(mb_type) ? 2 : 4;
- int first_vertical_edge_done = 0;
- int dir;
- /* FIXME: A given frame may occupy more than one position in
- * the reference list. So ref2frm should be populated with
- * frame numbers, not indices. */
- static const int ref2frm[34] = {-1,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
- 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
-
- //for sufficiently low qp, filtering wouldn't do anything
- //this is a conservative estimate: could also check beta_offset and more accurate chroma_qp
- if(!FRAME_MBAFF){
- int qp_thresh = 15 - h->slice_alpha_c0_offset - FFMAX(0, FFMAX(h->pps.chroma_qp_index_offset[0], h->pps.chroma_qp_index_offset[1]));
- int qp = s->current_picture.qscale_table[mb_xy];
- if(qp <= qp_thresh
- && (mb_x == 0 || ((qp + s->current_picture.qscale_table[mb_xy-1] + 1)>>1) <= qp_thresh)
- && (mb_y == 0 || ((qp + s->current_picture.qscale_table[h->top_mb_xy] + 1)>>1) <= qp_thresh)){
- return;
- }
- }
-
- if (FRAME_MBAFF
- // left mb is in picture
- && h->slice_table[mb_xy-1] != 255
- // and current and left pair do not have the same interlaced type
- && (IS_INTERLACED(mb_type) != IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]))
- // and left mb is in the same slice if deblocking_filter == 2
- && (h->deblocking_filter!=2 || h->slice_table[mb_xy-1] == h->slice_table[mb_xy])) {
- /* First vertical edge is different in MBAFF frames
- * There are 8 different bS to compute and 2 different Qp
- */
- const int pair_xy = mb_x + (mb_y&~1)*s->mb_stride;
- const int left_mb_xy[2] = { pair_xy-1, pair_xy-1+s->mb_stride };
- int16_t bS[8];
- int qp[2];
- int bqp[2];
- int rqp[2];
- int mb_qp, mbn0_qp, mbn1_qp;
- int i;
- first_vertical_edge_done = 1;
-
- if( IS_INTRA(mb_type) )
- bS[0] = bS[1] = bS[2] = bS[3] = bS[4] = bS[5] = bS[6] = bS[7] = 4;
- else {
- for( i = 0; i < 8; i++ ) {
- int mbn_xy = MB_FIELD ? left_mb_xy[i>>2] : left_mb_xy[i&1];
-
- if( IS_INTRA( s->current_picture.mb_type[mbn_xy] ) )
- bS[i] = 4;
- else if( h->non_zero_count_cache[12+8*(i>>1)] != 0 ||
- /* FIXME: with 8x8dct + cavlc, should check cbp instead of nnz */
- h->non_zero_count[mbn_xy][MB_FIELD ? i&3 : (i>>2)+(mb_y&1)*2] )
- bS[i] = 2;
- else
- bS[i] = 1;
- }
- }
-
- mb_qp = s->current_picture.qscale_table[mb_xy];
- mbn0_qp = s->current_picture.qscale_table[left_mb_xy[0]];
- mbn1_qp = s->current_picture.qscale_table[left_mb_xy[1]];
- qp[0] = ( mb_qp + mbn0_qp + 1 ) >> 1;
- bqp[0] = ( get_chroma_qp( h, 0, mb_qp ) +
- get_chroma_qp( h, 0, mbn0_qp ) + 1 ) >> 1;
- rqp[0] = ( get_chroma_qp( h, 1, mb_qp ) +
- get_chroma_qp( h, 1, mbn0_qp ) + 1 ) >> 1;
- qp[1] = ( mb_qp + mbn1_qp + 1 ) >> 1;
- bqp[1] = ( get_chroma_qp( h, 0, mb_qp ) +
- get_chroma_qp( h, 0, mbn1_qp ) + 1 ) >> 1;
- rqp[1] = ( get_chroma_qp( h, 1, mb_qp ) +
- get_chroma_qp( h, 1, mbn1_qp ) + 1 ) >> 1;
-
- /* Filter edge */
- tprintf(s->avctx, "filter mb:%d/%d MBAFF, QPy:%d/%d, QPb:%d/%d QPr:%d/%d ls:%d uvls:%d", mb_x, mb_y, qp[0], qp[1], bqp[0], bqp[1], rqp[0], rqp[1], linesize, uvlinesize);
- { int i; for (i = 0; i < 8; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
- filter_mb_mbaff_edgev ( h, &img_y [0], linesize, bS, qp );
- filter_mb_mbaff_edgecv( h, &img_cb[0], uvlinesize, bS, bqp );
- filter_mb_mbaff_edgecv( h, &img_cr[0], uvlinesize, bS, rqp );
- }
- /* dir : 0 -> vertical edge, 1 -> horizontal edge */
- for( dir = 0; dir < 2; dir++ )
- {
- int edge;
- const int mbm_xy = dir == 0 ? mb_xy -1 : h->top_mb_xy;
- const int mbm_type = s->current_picture.mb_type[mbm_xy];
- int start = h->slice_table[mbm_xy] == 255 ? 1 : 0;
-
- const int edges = (mb_type & (MB_TYPE_16x16|MB_TYPE_SKIP))
- == (MB_TYPE_16x16|MB_TYPE_SKIP) ? 1 : 4;
- // how often to recheck mv-based bS when iterating between edges
- const int mask_edge = (mb_type & (MB_TYPE_16x16 | (MB_TYPE_16x8 << dir))) ? 3 :
- (mb_type & (MB_TYPE_8x16 >> dir)) ? 1 : 0;
- // how often to recheck mv-based bS when iterating along each edge
- const int mask_par0 = mb_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir));
-
- if (first_vertical_edge_done) {
- start = 1;
- first_vertical_edge_done = 0;
- }
-
- if (h->deblocking_filter==2 && h->slice_table[mbm_xy] != h->slice_table[mb_xy])
- start = 1;
-
- if (FRAME_MBAFF && (dir == 1) && ((mb_y&1) == 0) && start == 0
- && !IS_INTERLACED(mb_type)
- && IS_INTERLACED(mbm_type)
- ) {
- // This is a special case in the norm where the filtering must
- // be done twice (one each of the field) even if we are in a
- // frame macroblock.
- //
- static const int nnz_idx[4] = {4,5,6,3};
- unsigned int tmp_linesize = 2 * linesize;
- unsigned int tmp_uvlinesize = 2 * uvlinesize;
- int mbn_xy = mb_xy - 2 * s->mb_stride;
- int qp;
- int i, j;
- int16_t bS[4];
-
- for(j=0; j<2; j++, mbn_xy += s->mb_stride){
- if( IS_INTRA(mb_type) ||
- IS_INTRA(s->current_picture.mb_type[mbn_xy]) ) {
- bS[0] = bS[1] = bS[2] = bS[3] = 3;
- } else {
- const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy];
- for( i = 0; i < 4; i++ ) {
- if( h->non_zero_count_cache[scan8[0]+i] != 0 ||
- mbn_nnz[nnz_idx[i]] != 0 )
- bS[i] = 2;
- else
- bS[i] = 1;
- }
- }
- // Do not use s->qscale as luma quantizer because it has not the same
- // value in IPCM macroblocks.
- qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
- tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d", mb_x, mb_y, dir, edge, qp, tmp_linesize, tmp_uvlinesize);
- { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
- filter_mb_edgeh( h, &img_y[j*linesize], tmp_linesize, bS, qp );
- filter_mb_edgech( h, &img_cb[j*uvlinesize], tmp_uvlinesize, bS,
- ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
- filter_mb_edgech( h, &img_cr[j*uvlinesize], tmp_uvlinesize, bS,
- ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
- }
-
- start = 1;
- }
-
- /* Calculate bS */
- for( edge = start; edge < edges; edge++ ) {
- /* mbn_xy: neighbor macroblock */
- const int mbn_xy = edge > 0 ? mb_xy : mbm_xy;
- const int mbn_type = s->current_picture.mb_type[mbn_xy];
- int16_t bS[4];
- int qp;
-
- if( (edge&1) && IS_8x8DCT(mb_type) )
- continue;
-
- if( IS_INTRA(mb_type) ||
- IS_INTRA(mbn_type) ) {
- int value;
- if (edge == 0) {
- if ( (!IS_INTERLACED(mb_type) && !IS_INTERLACED(mbm_type))
- || ((FRAME_MBAFF || (s->picture_structure != PICT_FRAME)) && (dir == 0))
- ) {
- value = 4;
- } else {
- value = 3;
- }
- } else {
- value = 3;
- }
- bS[0] = bS[1] = bS[2] = bS[3] = value;
- } else {
- int i, l;
- int mv_done;
-
- if( edge & mask_edge ) {
- bS[0] = bS[1] = bS[2] = bS[3] = 0;
- mv_done = 1;
- }
- else if( FRAME_MBAFF && IS_INTERLACED(mb_type ^ mbn_type)) {
- bS[0] = bS[1] = bS[2] = bS[3] = 1;
- mv_done = 1;
- }
- else if( mask_par0 && (edge || (mbn_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {
- int b_idx= 8 + 4 + edge * (dir ? 8:1);
- int bn_idx= b_idx - (dir ? 8:1);
- int v = 0;
- for( l = 0; !v && l < 1 + (h->slice_type == B_TYPE); l++ ) {
- v |= ref2frm[h->ref_cache[l][b_idx]+2] != ref2frm[h->ref_cache[l][bn_idx]+2] ||
- FFABS( h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] ) >= 4 ||
- FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
- }
- bS[0] = bS[1] = bS[2] = bS[3] = v;
- mv_done = 1;
- }
- else
- mv_done = 0;
-
- for( i = 0; i < 4; i++ ) {
- int x = dir == 0 ? edge : i;
- int y = dir == 0 ? i : edge;
- int b_idx= 8 + 4 + x + 8*y;
- int bn_idx= b_idx - (dir ? 8:1);
-
- if( h->non_zero_count_cache[b_idx] != 0 ||
- h->non_zero_count_cache[bn_idx] != 0 ) {
- bS[i] = 2;
- }
- else if(!mv_done)
- {
- bS[i] = 0;
- for( l = 0; l < 1 + (h->slice_type == B_TYPE); l++ ) {
- if( ref2frm[h->ref_cache[l][b_idx]+2] != ref2frm[h->ref_cache[l][bn_idx]+2] ||
- FFABS( h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] ) >= 4 ||
- FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {
- bS[i] = 1;
- break;
- }
- }
- }
- }
-
- if(bS[0]+bS[1]+bS[2]+bS[3] == 0)
- continue;
- }
-
- /* Filter edge */
- // Do not use s->qscale as luma quantizer because it has not the same
- // value in IPCM macroblocks.
- qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
- //tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\n", mb_x, mb_y, dir, edge, qp, h->chroma_qp, s->current_picture.qscale_table[mbn_xy]);
- tprintf(s->avctx, "filter mb:%d/%d dir:%d edge:%d, QPy:%d ls:%d uvls:%d", mb_x, mb_y, dir, edge, qp, linesize, uvlinesize);
- { int i; for (i = 0; i < 4; i++) tprintf(s->avctx, " bS[%d]:%d", i, bS[i]); tprintf(s->avctx, "\n"); }
- if( dir == 0 ) {
- filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );
- if( (edge&1) == 0 ) {
- filter_mb_edgecv( h, &img_cb[2*edge], uvlinesize, bS,
- ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
- filter_mb_edgecv( h, &img_cr[2*edge], uvlinesize, bS,
- ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
- }
- } else {
- filter_mb_edgeh( h, &img_y[4*edge*linesize], linesize, bS, qp );
- if( (edge&1) == 0 ) {
- filter_mb_edgech( h, &img_cb[2*edge*uvlinesize], uvlinesize, bS,
- ( h->chroma_qp[0] + get_chroma_qp( h, 0, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
- filter_mb_edgech( h, &img_cr[2*edge*uvlinesize], uvlinesize, bS,
- ( h->chroma_qp[1] + get_chroma_qp( h, 1, s->current_picture.qscale_table[mbn_xy] ) + 1 ) >> 1);
- }
- }
- }
- }
-}
-
-static int decode_slice(struct AVCodecContext *avctx, H264Context *h){
- MpegEncContext * const s = &h->s;
- const int part_mask= s->partitioned_frame ? (AC_END|AC_ERROR) : 0x7F;
-
- s->mb_skip_run= -1;
-
- if( h->pps.cabac ) {
- int i;
-
- /* realign */
- align_get_bits( &s->gb );
-
- /* init cabac */
- ff_init_cabac_states( &h->cabac);
- ff_init_cabac_decoder( &h->cabac,
- s->gb.buffer + get_bits_count(&s->gb)/8,
- ( s->gb.size_in_bits - get_bits_count(&s->gb) + 7)/8);
- /* calculate pre-state */
- for( i= 0; i < 460; i++ ) {
- int pre;
- if( h->slice_type == I_TYPE )
- pre = av_clip( ((cabac_context_init_I[i][0] * s->qscale) >>4 ) + cabac_context_init_I[i][1], 1, 126 );
- else
- pre = av_clip( ((cabac_context_init_PB[h->cabac_init_idc][i][0] * s->qscale) >>4 ) + cabac_context_init_PB[h->cabac_init_idc][i][1], 1, 126 );
-
- if( pre <= 63 )
- h->cabac_state[i] = 2 * ( 63 - pre ) + 0;
- else
- h->cabac_state[i] = 2 * ( pre - 64 ) + 1;
- }
-
- for(;;){
-//START_TIMER
- int ret = decode_mb_cabac(h);
- int eos;
-//STOP_TIMER("decode_mb_cabac")
-
- if(ret>=0) hl_decode_mb(h);
-
- if( ret >= 0 && FRAME_MBAFF ) { //FIXME optimal? or let mb_decode decode 16x32 ?
- s->mb_y++;
-
- if(ret>=0) ret = decode_mb_cabac(h);
-
- if(ret>=0) hl_decode_mb(h);
- s->mb_y--;
- }
- eos = get_cabac_terminate( &h->cabac );
-
- if( ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
- av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d, bytestream (%td)\n", s->mb_x, s->mb_y, h->cabac.bytestream_end - h->cabac.bytestream);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
- return -1;
- }
-
- if( ++s->mb_x >= s->mb_width ) {
- s->mb_x = 0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- ++s->mb_y;
- if(FIELD_OR_MBAFF_PICTURE) {
- ++s->mb_y;
- }
- }
-
- if( eos || s->mb_y >= s->mb_height ) {
- tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
- return 0;
- }
- }
-
- } else {
- for(;;){
- int ret = decode_mb_cavlc(h);
-
- if(ret>=0) hl_decode_mb(h);
-
- if(ret>=0 && FRAME_MBAFF){ //FIXME optimal? or let mb_decode decode 16x32 ?
- s->mb_y++;
- ret = decode_mb_cavlc(h);
-
- if(ret>=0) hl_decode_mb(h);
- s->mb_y--;
- }
-
- if(ret<0){
- av_log(h->s.avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
-
- if(++s->mb_x >= s->mb_width){
- s->mb_x=0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- ++s->mb_y;
- if(FIELD_OR_MBAFF_PICTURE) {
- ++s->mb_y;
- }
- if(s->mb_y >= s->mb_height){
- tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
-
- if(get_bits_count(&s->gb) == s->gb.size_in_bits ) {
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return -1;
- }
- }
- }
-
- if(get_bits_count(&s->gb) >= s->gb.size_in_bits && s->mb_skip_run<=0){
- tprintf(s->avctx, "slice end %d %d\n", get_bits_count(&s->gb), s->gb.size_in_bits);
- if(get_bits_count(&s->gb) == s->gb.size_in_bits ){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
- }
- }
- }
-
-#if 0
- for(;s->mb_y < s->mb_height; s->mb_y++){
- for(;s->mb_x < s->mb_width; s->mb_x++){
- int ret= decode_mb(h);
-
- hl_decode_mb(h);
-
- if(ret<0){
- av_log(s->avctx, AV_LOG_ERROR, "error while decoding MB %d %d\n", s->mb_x, s->mb_y);
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
-
- if(++s->mb_x >= s->mb_width){
- s->mb_x=0;
- if(++s->mb_y >= s->mb_height){
- if(get_bits_count(s->gb) == s->gb.size_in_bits){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return -1;
- }
- }
- }
-
- if(get_bits_count(s->?gb) >= s->gb?.size_in_bits){
- if(get_bits_count(s->gb) == s->gb.size_in_bits){
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, (AC_END|DC_END|MV_END)&part_mask);
-
- return 0;
- }else{
- ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y, (AC_ERROR|DC_ERROR|MV_ERROR)&part_mask);
-
- return -1;
- }
- }
- }
- s->mb_x=0;
- ff_draw_horiz_band(s, 16*s->mb_y, 16);
- }
-#endif
- return -1; //not reached
-}
-
-static int decode_unregistered_user_data(H264Context *h, int size){
- MpegEncContext * const s = &h->s;
- uint8_t user_data[16+256];
- int e, build, i;
-
- if(size<16)
- return -1;
-
- for(i=0; i<sizeof(user_data)-1 && i<size; i++){
- user_data[i]= get_bits(&s->gb, 8);
- }
-
- user_data[i]= 0;
- e= sscanf(user_data+16, "x264 - core %d"/*%s - H.264/MPEG-4 AVC codec - Copyleft 2005 - http://www.videolan.org/x264.html*/, &build);
- if(e==1 && build>=0)
- h->x264_build= build;
-
- if(s->avctx->debug & FF_DEBUG_BUGS)
- av_log(s->avctx, AV_LOG_DEBUG, "user data:\"%s\"\n", user_data+16);
-
- for(; i<size; i++)
- skip_bits(&s->gb, 8);
-
- return 0;
-}
-
-static int decode_sei(H264Context *h){
- MpegEncContext * const s = &h->s;
-
- while(get_bits_count(&s->gb) + 16 < s->gb.size_in_bits){
- int size, type;
-
- type=0;
- do{
- type+= show_bits(&s->gb, 8);
- }while(get_bits(&s->gb, 8) == 255);
-
- size=0;
- do{
- size+= show_bits(&s->gb, 8);
- }while(get_bits(&s->gb, 8) == 255);
-
- switch(type){
- case 5:
- if(decode_unregistered_user_data(h, size) < 0)
- return -1;
- break;
- default:
- skip_bits(&s->gb, 8*size);
- }
-
- //FIXME check bits here
- align_get_bits(&s->gb);
- }
-
- return 0;
-}
-
-static inline void decode_hrd_parameters(H264Context *h, SPS *sps){
- MpegEncContext * const s = &h->s;
- int cpb_count, i;
- cpb_count = get_ue_golomb(&s->gb) + 1;
- get_bits(&s->gb, 4); /* bit_rate_scale */
- get_bits(&s->gb, 4); /* cpb_size_scale */
- for(i=0; i<cpb_count; i++){
- get_ue_golomb(&s->gb); /* bit_rate_value_minus1 */
- get_ue_golomb(&s->gb); /* cpb_size_value_minus1 */
- get_bits1(&s->gb); /* cbr_flag */
- }
- get_bits(&s->gb, 5); /* initial_cpb_removal_delay_length_minus1 */
- get_bits(&s->gb, 5); /* cpb_removal_delay_length_minus1 */
- get_bits(&s->gb, 5); /* dpb_output_delay_length_minus1 */
- get_bits(&s->gb, 5); /* time_offset_length */
-}
-
-static inline int decode_vui_parameters(H264Context *h, SPS *sps){
- MpegEncContext * const s = &h->s;
- int aspect_ratio_info_present_flag;
- unsigned int aspect_ratio_idc;
- int nal_hrd_parameters_present_flag, vcl_hrd_parameters_present_flag;
-
- aspect_ratio_info_present_flag= get_bits1(&s->gb);
-
- if( aspect_ratio_info_present_flag ) {
- aspect_ratio_idc= get_bits(&s->gb, 8);
- if( aspect_ratio_idc == EXTENDED_SAR ) {
- sps->sar.num= get_bits(&s->gb, 16);
- sps->sar.den= get_bits(&s->gb, 16);
- }else if(aspect_ratio_idc < 14){
- sps->sar= pixel_aspect[aspect_ratio_idc];
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
- return -1;
- }
- }else{
- sps->sar.num=
- sps->sar.den= 0;
- }
-// s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height);
-
- if(get_bits1(&s->gb)){ /* overscan_info_present_flag */
- get_bits1(&s->gb); /* overscan_appropriate_flag */
- }
-
- if(get_bits1(&s->gb)){ /* video_signal_type_present_flag */
- get_bits(&s->gb, 3); /* video_format */
- get_bits1(&s->gb); /* video_full_range_flag */
- if(get_bits1(&s->gb)){ /* colour_description_present_flag */
- get_bits(&s->gb, 8); /* colour_primaries */
- get_bits(&s->gb, 8); /* transfer_characteristics */
- get_bits(&s->gb, 8); /* matrix_coefficients */
- }
- }
-
- if(get_bits1(&s->gb)){ /* chroma_location_info_present_flag */
- get_ue_golomb(&s->gb); /* chroma_sample_location_type_top_field */
- get_ue_golomb(&s->gb); /* chroma_sample_location_type_bottom_field */
- }
-
- sps->timing_info_present_flag = get_bits1(&s->gb);
- if(sps->timing_info_present_flag){
- sps->num_units_in_tick = get_bits_long(&s->gb, 32);
- sps->time_scale = get_bits_long(&s->gb, 32);
- sps->fixed_frame_rate_flag = get_bits1(&s->gb);
- }
-
- nal_hrd_parameters_present_flag = get_bits1(&s->gb);
- if(nal_hrd_parameters_present_flag)
- decode_hrd_parameters(h, sps);
- vcl_hrd_parameters_present_flag = get_bits1(&s->gb);
- if(vcl_hrd_parameters_present_flag)
- decode_hrd_parameters(h, sps);
- if(nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag)
- get_bits1(&s->gb); /* low_delay_hrd_flag */
- get_bits1(&s->gb); /* pic_struct_present_flag */
-
- sps->bitstream_restriction_flag = get_bits1(&s->gb);
- if(sps->bitstream_restriction_flag){
- unsigned int num_reorder_frames;
- get_bits1(&s->gb); /* motion_vectors_over_pic_boundaries_flag */
- get_ue_golomb(&s->gb); /* max_bytes_per_pic_denom */
- get_ue_golomb(&s->gb); /* max_bits_per_mb_denom */
- get_ue_golomb(&s->gb); /* log2_max_mv_length_horizontal */
- get_ue_golomb(&s->gb); /* log2_max_mv_length_vertical */
- num_reorder_frames= get_ue_golomb(&s->gb);
- get_ue_golomb(&s->gb); /*max_dec_frame_buffering*/
-
- if(num_reorder_frames > 16 /*max_dec_frame_buffering || max_dec_frame_buffering > 16*/){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", num_reorder_frames);
- return -1;
- }
-
- sps->num_reorder_frames= num_reorder_frames;
- }
-
- return 0;
-}
-
-static void decode_scaling_list(H264Context *h, uint8_t *factors, int size,
- const uint8_t *jvt_list, const uint8_t *fallback_list){
- MpegEncContext * const s = &h->s;
- int i, last = 8, next = 8;
- const uint8_t *scan = size == 16 ? zigzag_scan : zigzag_scan8x8;
- if(!get_bits1(&s->gb)) /* matrix not written, we use the predicted one */
- memcpy(factors, fallback_list, size*sizeof(uint8_t));
- else
- for(i=0;i<size;i++){
- if(next)
- next = (last + get_se_golomb(&s->gb)) & 0xff;
- if(!i && !next){ /* matrix not written, we use the preset one */
- memcpy(factors, jvt_list, size*sizeof(uint8_t));
- break;
- }
- last = factors[scan[i]] = next ? next : last;
- }
-}
-
-static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_sps,
- uint8_t (*scaling_matrix4)[16], uint8_t (*scaling_matrix8)[64]){
- MpegEncContext * const s = &h->s;
- int fallback_sps = !is_sps && sps->scaling_matrix_present;
- const uint8_t *fallback[4] = {
- fallback_sps ? sps->scaling_matrix4[0] : default_scaling4[0],
- fallback_sps ? sps->scaling_matrix4[3] : default_scaling4[1],
- fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0],
- fallback_sps ? sps->scaling_matrix8[1] : default_scaling8[1]
- };
- if(get_bits1(&s->gb)){
- sps->scaling_matrix_present |= is_sps;
- decode_scaling_list(h,scaling_matrix4[0],16,default_scaling4[0],fallback[0]); // Intra, Y
- decode_scaling_list(h,scaling_matrix4[1],16,default_scaling4[0],scaling_matrix4[0]); // Intra, Cr
- decode_scaling_list(h,scaling_matrix4[2],16,default_scaling4[0],scaling_matrix4[1]); // Intra, Cb
- decode_scaling_list(h,scaling_matrix4[3],16,default_scaling4[1],fallback[1]); // Inter, Y
- decode_scaling_list(h,scaling_matrix4[4],16,default_scaling4[1],scaling_matrix4[3]); // Inter, Cr
- decode_scaling_list(h,scaling_matrix4[5],16,default_scaling4[1],scaling_matrix4[4]); // Inter, Cb
- if(is_sps || pps->transform_8x8_mode){
- decode_scaling_list(h,scaling_matrix8[0],64,default_scaling8[0],fallback[2]); // Intra, Y
- decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[1],fallback[3]); // Inter, Y
- }
- } else if(fallback_sps) {
- memcpy(scaling_matrix4, sps->scaling_matrix4, 6*16*sizeof(uint8_t));
- memcpy(scaling_matrix8, sps->scaling_matrix8, 2*64*sizeof(uint8_t));
- }
-}
-
-/**
- * Returns and optionally allocates SPS / PPS structures in the supplied array 'vec'
- */
-static void *
-alloc_parameter_set(H264Context *h, void **vec, const unsigned int id, const unsigned int max,
- const size_t size, const char *name)
-{
- if(id>=max) {
- av_log(h->s.avctx, AV_LOG_ERROR, "%s_id (%d) out of range\n", name, id);
- return NULL;
- }
-
- if(!vec[id]) {
- vec[id] = av_mallocz(size);
- if(vec[id] == NULL)
- av_log(h->s.avctx, AV_LOG_ERROR, "cannot allocate memory for %s\n", name);
- }
- return vec[id];
-}
-
-static inline int decode_seq_parameter_set(H264Context *h){
- MpegEncContext * const s = &h->s;
- int profile_idc, level_idc;
- unsigned int sps_id, tmp, mb_width, mb_height;
- int i;
- SPS *sps;
-
- profile_idc= get_bits(&s->gb, 8);
- get_bits1(&s->gb); //constraint_set0_flag
- get_bits1(&s->gb); //constraint_set1_flag
- get_bits1(&s->gb); //constraint_set2_flag
- get_bits1(&s->gb); //constraint_set3_flag
- get_bits(&s->gb, 4); // reserved
- level_idc= get_bits(&s->gb, 8);
- sps_id= get_ue_golomb(&s->gb);
-
- sps = alloc_parameter_set(h, (void **)h->sps_buffers, sps_id, MAX_SPS_COUNT, sizeof(SPS), "sps");
- if(sps == NULL)
- return -1;
-
- sps->profile_idc= profile_idc;
- sps->level_idc= level_idc;
-
- if(sps->profile_idc >= 100){ //high profile
- if(get_ue_golomb(&s->gb) == 3) //chroma_format_idc
- get_bits1(&s->gb); //residual_color_transform_flag
- get_ue_golomb(&s->gb); //bit_depth_luma_minus8
- get_ue_golomb(&s->gb); //bit_depth_chroma_minus8
- sps->transform_bypass = get_bits1(&s->gb);
- decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8);
- }else
- sps->scaling_matrix_present = 0;
-
- sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
- sps->poc_type= get_ue_golomb(&s->gb);
-
- if(sps->poc_type == 0){ //FIXME #define
- sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;
- } else if(sps->poc_type == 1){//FIXME #define
- sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);
- sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);
- sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);
- tmp= get_ue_golomb(&s->gb);
-
- if(tmp >= sizeof(sps->offset_for_ref_frame) / sizeof(sps->offset_for_ref_frame[0])){
- av_log(h->s.avctx, AV_LOG_ERROR, "poc_cycle_length overflow %u\n", tmp);
- return -1;
- }
- sps->poc_cycle_length= tmp;
-
- for(i=0; i<sps->poc_cycle_length; i++)
- sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);
- }else if(sps->poc_type != 2){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
- return -1;
- }
-
- tmp= get_ue_golomb(&s->gb);
- if(tmp > MAX_PICTURE_COUNT-2 || tmp >= 32){
- av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n");
- return -1;
- }
- sps->ref_frame_count= tmp;
- sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);
- mb_width= get_ue_golomb(&s->gb) + 1;
- mb_height= get_ue_golomb(&s->gb) + 1;
- if(mb_width >= INT_MAX/16 || mb_height >= INT_MAX/16 ||
- avcodec_check_dimensions(NULL, 16*mb_width, 16*mb_height)){
- av_log(h->s.avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
- return -1;
- }
- sps->mb_width = mb_width;
- sps->mb_height= mb_height;
-
- sps->frame_mbs_only_flag= get_bits1(&s->gb);
- if(!sps->frame_mbs_only_flag)
- sps->mb_aff= get_bits1(&s->gb);
- else
- sps->mb_aff= 0;
-
- sps->direct_8x8_inference_flag= get_bits1(&s->gb);
-
-#ifndef ALLOW_INTERLACE
- if(sps->mb_aff)
- av_log(h->s.avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n");
-#endif
- if(!sps->direct_8x8_inference_flag && sps->mb_aff)
- av_log(h->s.avctx, AV_LOG_ERROR, "MBAFF + !direct_8x8_inference is not implemented\n");
-
- sps->crop= get_bits1(&s->gb);
- if(sps->crop){
- sps->crop_left = get_ue_golomb(&s->gb);
- sps->crop_right = get_ue_golomb(&s->gb);
- sps->crop_top = get_ue_golomb(&s->gb);
- sps->crop_bottom= get_ue_golomb(&s->gb);
- if(sps->crop_left || sps->crop_top){
- av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ...\n");
- }
- }else{
- sps->crop_left =
- sps->crop_right =
- sps->crop_top =
- sps->crop_bottom= 0;
- }
-
- sps->vui_parameters_present_flag= get_bits1(&s->gb);
- if( sps->vui_parameters_present_flag )
- decode_vui_parameters(h, sps);
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s\n",
- sps_id, sps->profile_idc, sps->level_idc,
- sps->poc_type,
- sps->ref_frame_count,
- sps->mb_width, sps->mb_height,
- sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"),
- sps->direct_8x8_inference_flag ? "8B8" : "",
- sps->crop_left, sps->crop_right,
- sps->crop_top, sps->crop_bottom,
- sps->vui_parameters_present_flag ? "VUI" : ""
- );
- }
- return 0;
-}
-
-static void
-build_qp_table(PPS *pps, int t, int index)
-{
- int i;
- for(i = 0; i < 255; i++)
- pps->chroma_qp_table[t][i & 0xff] = chroma_qp[av_clip(i + index, 0, 51)];
-}
-
-static inline int decode_picture_parameter_set(H264Context *h, int bit_length){
- MpegEncContext * const s = &h->s;
- unsigned int tmp, pps_id= get_ue_golomb(&s->gb);
- PPS *pps;
-
- pps = alloc_parameter_set(h, (void **)h->pps_buffers, pps_id, MAX_PPS_COUNT, sizeof(PPS), "pps");
- if(pps == NULL)
- return -1;
-
- tmp= get_ue_golomb(&s->gb);
- if(tmp>=MAX_SPS_COUNT || h->sps_buffers[tmp] == NULL){
- av_log(h->s.avctx, AV_LOG_ERROR, "sps_id out of range\n");
- return -1;
- }
- pps->sps_id= tmp;
-
- pps->cabac= get_bits1(&s->gb);
- pps->pic_order_present= get_bits1(&s->gb);
- pps->slice_group_count= get_ue_golomb(&s->gb) + 1;
- if(pps->slice_group_count > 1 ){
- pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);
- av_log(h->s.avctx, AV_LOG_ERROR, "FMO not supported\n");
- switch(pps->mb_slice_group_map_type){
- case 0:
-#if 0
-| for( i = 0; i <= num_slice_groups_minus1; i++ ) | | |
-| run_length[ i ] |1 |ue(v) |
-#endif
- break;
- case 2:
-#if 0
-| for( i = 0; i < num_slice_groups_minus1; i++ ) | | |
-|{ | | |
-| top_left_mb[ i ] |1 |ue(v) |
-| bottom_right_mb[ i ] |1 |ue(v) |
-| } | | |
-#endif
- break;
- case 3:
- case 4:
- case 5:
-#if 0
-| slice_group_change_direction_flag |1 |u(1) |
-| slice_group_change_rate_minus1 |1 |ue(v) |
-#endif
- break;
- case 6:
-#if 0
-| slice_group_id_cnt_minus1 |1 |ue(v) |
-| for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | |
-|) | | |
-| slice_group_id[ i ] |1 |u(v) |
-#endif
- break;
- }
- }
- pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;
- pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;
- if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
- pps->ref_count[0]= pps->ref_count[1]= 1;
- return -1;
- }
-
- pps->weighted_pred= get_bits1(&s->gb);
- pps->weighted_bipred_idc= get_bits(&s->gb, 2);
- pps->init_qp= get_se_golomb(&s->gb) + 26;
- pps->init_qs= get_se_golomb(&s->gb) + 26;
- pps->chroma_qp_index_offset[0]= get_se_golomb(&s->gb);
- pps->deblocking_filter_parameters_present= get_bits1(&s->gb);
- pps->constrained_intra_pred= get_bits1(&s->gb);
- pps->redundant_pic_cnt_present = get_bits1(&s->gb);
-
- pps->transform_8x8_mode= 0;
- h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit
- memset(pps->scaling_matrix4, 16, 6*16*sizeof(uint8_t));
- memset(pps->scaling_matrix8, 16, 2*64*sizeof(uint8_t));
-
- if(get_bits_count(&s->gb) < bit_length){
- pps->transform_8x8_mode= get_bits1(&s->gb);
- decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0, pps->scaling_matrix4, pps->scaling_matrix8);
- pps->chroma_qp_index_offset[1]= get_se_golomb(&s->gb); //second_chroma_qp_index_offset
- } else {
- pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0];
- }
-
- build_qp_table(pps, 0, pps->chroma_qp_index_offset[0]);
- if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1]) {
- build_qp_table(pps, 1, pps->chroma_qp_index_offset[1]);
- h->pps.chroma_qp_diff= 1;
- } else
- memcpy(pps->chroma_qp_table[1], pps->chroma_qp_table[0], 256);
-
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\n",
- pps_id, pps->sps_id,
- pps->cabac ? "CABAC" : "CAVLC",
- pps->slice_group_count,
- pps->ref_count[0], pps->ref_count[1],
- pps->weighted_pred ? "weighted" : "",
- pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1],
- pps->deblocking_filter_parameters_present ? "LPAR" : "",
- pps->constrained_intra_pred ? "CONSTR" : "",
- pps->redundant_pic_cnt_present ? "REDU" : "",
- pps->transform_8x8_mode ? "8x8DCT" : ""
- );
- }
-
- return 0;
-}
-
-/**
- * Call decode_slice() for each context.
- *
- * @param h h264 master context
- * @param context_count number of contexts to execute
- */
-static void execute_decode_slices(H264Context *h, int context_count){
- MpegEncContext * const s = &h->s;
- AVCodecContext * const avctx= s->avctx;
- H264Context *hx;
- int i;
-
- if(context_count == 1) {
- decode_slice(avctx, h);
- } else {
- for(i = 1; i < context_count; i++) {
- hx = h->thread_context[i];
- hx->s.error_resilience = avctx->error_resilience;
- hx->s.error_count = 0;
- }
-
- avctx->execute(avctx, (void *)decode_slice,
- (void **)h->thread_context, NULL, context_count);
-
- /* pull back stuff from slices to master context */
- hx = h->thread_context[context_count - 1];
- s->mb_x = hx->s.mb_x;
- s->mb_y = hx->s.mb_y;
- s->dropable = hx->s.dropable;
- s->picture_structure = hx->s.picture_structure;
- for(i = 1; i < context_count; i++)
- h->s.error_count += h->thread_context[i]->s.error_count;
- }
-}
-
-
-static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
- MpegEncContext * const s = &h->s;
- AVCodecContext * const avctx= s->avctx;
- int buf_index=0;
- H264Context *hx; ///< thread context
- int context_count = 0;
-
- h->max_contexts = avctx->thread_count;
-#if 0
- int i;
- for(i=0; i<50; i++){
- av_log(NULL, AV_LOG_ERROR,"%02X ", buf[i]);
- }
-#endif
- if(!(s->flags2 & CODEC_FLAG2_CHUNKS)){
- h->current_slice = 0;
- if (!s->first_field)
- s->current_picture_ptr= NULL;
- }
-
- for(;;){
- int consumed;
- int dst_length;
- int bit_length;
- uint8_t *ptr;
- int i, nalsize = 0;
- int err;
-
- if(h->is_avc) {
- if(buf_index >= buf_size) break;
- nalsize = 0;
- for(i = 0; i < h->nal_length_size; i++)
- nalsize = (nalsize << 8) | buf[buf_index++];
- if(nalsize <= 1 || (nalsize+buf_index > buf_size)){
- if(nalsize == 1){
- buf_index++;
- continue;
- }else{
- av_log(h->s.avctx, AV_LOG_ERROR, "AVC: nal size %d\n", nalsize);
- break;
- }
- }
- } else {
- // start code prefix search
- for(; buf_index + 3 < buf_size; buf_index++){
- // This should always succeed in the first iteration.
- if(buf[buf_index] == 0 && buf[buf_index+1] == 0 && buf[buf_index+2] == 1)
- break;
- }
-
- if(buf_index+3 >= buf_size) break;
-
- buf_index+=3;
- }
-
- hx = h->thread_context[context_count];
-
- ptr= decode_nal(hx, buf + buf_index, &dst_length, &consumed, h->is_avc ? nalsize : buf_size - buf_index);
- if (ptr==NULL || dst_length < 0){
- return -1;
- }
- while(ptr[dst_length - 1] == 0 && dst_length > 0)
- dst_length--;
- bit_length= !dst_length ? 0 : (8*dst_length - decode_rbsp_trailing(h, ptr + dst_length - 1));
-
- if(s->avctx->debug&FF_DEBUG_STARTCODE){
- av_log(h->s.avctx, AV_LOG_DEBUG, "NAL %d at %d/%d length %d\n", hx->nal_unit_type, buf_index, buf_size, dst_length);
- }
-
- if (h->is_avc && (nalsize != consumed))
- av_log(h->s.avctx, AV_LOG_ERROR, "AVC: Consumed only %d bytes instead of %d\n", consumed, nalsize);
-
- buf_index += consumed;
-
- if( (s->hurry_up == 1 && h->nal_ref_idc == 0) //FIXME do not discard SEI id
- ||(avctx->skip_frame >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
- continue;
-
- again:
- err = 0;
- switch(hx->nal_unit_type){
- case NAL_IDR_SLICE:
- if (h->nal_unit_type != NAL_IDR_SLICE) {
- av_log(h->s.avctx, AV_LOG_ERROR, "Invalid mix of idr and non-idr slices");
- return -1;
- }
- idr(h); //FIXME ensure we don't loose some frames if there is reordering
- case NAL_SLICE:
- init_get_bits(&hx->s.gb, ptr, bit_length);
- hx->intra_gb_ptr=
- hx->inter_gb_ptr= &hx->s.gb;
- hx->s.data_partitioning = 0;
-
- if((err = decode_slice_header(hx, h)))
- break;
-
- s->current_picture_ptr->key_frame|= (hx->nal_unit_type == NAL_IDR_SLICE);
- if(hx->redundant_pic_count==0 && hx->s.hurry_up < 5
- && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
- && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type!=B_TYPE)
- && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type==I_TYPE)
- && avctx->skip_frame < AVDISCARD_ALL)
- context_count++;
- break;
- case NAL_DPA:
- init_get_bits(&hx->s.gb, ptr, bit_length);
- hx->intra_gb_ptr=
- hx->inter_gb_ptr= NULL;
- hx->s.data_partitioning = 1;
-
- err = decode_slice_header(hx, h);
- break;
- case NAL_DPB:
- init_get_bits(&hx->intra_gb, ptr, bit_length);
- hx->intra_gb_ptr= &hx->intra_gb;
- break;
- case NAL_DPC:
- init_get_bits(&hx->inter_gb, ptr, bit_length);
- hx->inter_gb_ptr= &hx->inter_gb;
-
- if(hx->redundant_pic_count==0 && hx->intra_gb_ptr && hx->s.data_partitioning
- && s->context_initialized
- && s->hurry_up < 5
- && (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
- && (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type!=B_TYPE)
- && (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type==I_TYPE)
- && avctx->skip_frame < AVDISCARD_ALL)
- context_count++;
- break;
- case NAL_SEI:
- init_get_bits(&s->gb, ptr, bit_length);
- decode_sei(h);
- break;
- case NAL_SPS:
- init_get_bits(&s->gb, ptr, bit_length);
- decode_seq_parameter_set(h);
-
- if(s->flags& CODEC_FLAG_LOW_DELAY)
- s->low_delay=1;
-
- if(avctx->has_b_frames < 2)
- avctx->has_b_frames= !s->low_delay;
- break;
- case NAL_PPS:
- init_get_bits(&s->gb, ptr, bit_length);
-
- decode_picture_parameter_set(h, bit_length);
-
- break;
- case NAL_AUD:
- case NAL_END_SEQUENCE:
- case NAL_END_STREAM:
- case NAL_FILLER_DATA:
- case NAL_SPS_EXT:
- case NAL_AUXILIARY_SLICE:
- break;
- default:
- av_log(avctx, AV_LOG_DEBUG, "Unknown NAL code: %d (%d bits)\n", h->nal_unit_type, bit_length);
- }
-
- if(context_count == h->max_contexts) {
- execute_decode_slices(h, context_count);
- context_count = 0;
- }
-
- if (err < 0)
- av_log(h->s.avctx, AV_LOG_ERROR, "decode_slice_header error\n");
- else if(err == 1) {
- /* Slice could not be decoded in parallel mode, copy down
- * NAL unit stuff to context 0 and restart. Note that
- * rbsp_buffer is not transfered, but since we no longer
- * run in parallel mode this should not be an issue. */
- h->nal_unit_type = hx->nal_unit_type;
- h->nal_ref_idc = hx->nal_ref_idc;
- hx = h;
- goto again;
- }
- }
- if(context_count)
- execute_decode_slices(h, context_count);
- return buf_index;
-}
-
-/**
- * returns the number of bytes consumed for building the current frame
- */
-static int get_consumed_bytes(MpegEncContext *s, int pos, int buf_size){
- if(s->flags&CODEC_FLAG_TRUNCATED){
- pos -= s->parse_context.last_index;
- if(pos<0) pos=0; // FIXME remove (unneeded?)
-
- return pos;
- }else{
- if(pos==0) pos=1; //avoid infinite loops (i doubt that is needed but ...)
- if(pos+10>buf_size) pos=buf_size; // oops ;)
-
- return pos;
- }
-}
-
-static int decode_frame(AVCodecContext *avctx,
- void *data, int *data_size,
- uint8_t *buf, int buf_size)
-{
- H264Context *h = avctx->priv_data;
- MpegEncContext *s = &h->s;
- AVFrame *pict = data;
- int buf_index;
-
- s->flags= avctx->flags;
- s->flags2= avctx->flags2;
-
- /* no supplementary picture */
- if (buf_size == 0) {
- Picture *out;
- int i, out_idx;
-
-//FIXME factorize this with the output code below
- out = h->delayed_pic[0];
- out_idx = 0;
- for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame; i++)
- if(h->delayed_pic[i]->poc < out->poc){
- out = h->delayed_pic[i];
- out_idx = i;
- }
-
- for(i=out_idx; h->delayed_pic[i]; i++)
- h->delayed_pic[i] = h->delayed_pic[i+1];
-
- if(out){
- *data_size = sizeof(AVFrame);
- *pict= *(AVFrame*)out;
- }
-
- return 0;
- }
-
- if(s->flags&CODEC_FLAG_TRUNCATED){
- int next= ff_h264_find_frame_end(h, buf, buf_size);
-
- if( ff_combine_frame(&s->parse_context, next, (const uint8_t **)&buf, &buf_size) < 0 )
- return buf_size;
-//printf("next:%d buf_size:%d last_index:%d\n", next, buf_size, s->parse_context.last_index);
- }
-
- if(h->is_avc && !h->got_avcC) {
- int i, cnt, nalsize;
- unsigned char *p = avctx->extradata;
- if(avctx->extradata_size < 7) {
- av_log(avctx, AV_LOG_ERROR, "avcC too short\n");
- return -1;
- }
- if(*p != 1) {
- av_log(avctx, AV_LOG_ERROR, "Unknown avcC version %d\n", *p);
- return -1;
- }
- /* sps and pps in the avcC always have length coded with 2 bytes,
- so put a fake nal_length_size = 2 while parsing them */
- h->nal_length_size = 2;
- // Decode sps from avcC
- cnt = *(p+5) & 0x1f; // Number of sps
- p += 6;
- for (i = 0; i < cnt; i++) {
- nalsize = AV_RB16(p) + 2;
- if(decode_nal_units(h, p, nalsize) < 0) {
- av_log(avctx, AV_LOG_ERROR, "Decoding sps %d from avcC failed\n", i);
- return -1;
- }
- p += nalsize;
- }
- // Decode pps from avcC
- cnt = *(p++); // Number of pps
- for (i = 0; i < cnt; i++) {
- nalsize = AV_RB16(p) + 2;
- if(decode_nal_units(h, p, nalsize) != nalsize) {
- av_log(avctx, AV_LOG_ERROR, "Decoding pps %d from avcC failed\n", i);
- return -1;
- }
- p += nalsize;
- }
- // Now store right nal length size, that will be use to parse all other nals
- h->nal_length_size = ((*(((char*)(avctx->extradata))+4))&0x03)+1;
- // Do not reparse avcC
- h->got_avcC = 1;
- }
-
- if(avctx->frame_number==0 && !h->is_avc && s->avctx->extradata_size){
- if(decode_nal_units(h, s->avctx->extradata, s->avctx->extradata_size) < 0)
- return -1;
- }
-
- buf_index=decode_nal_units(h, buf, buf_size);
- if(buf_index < 0)
- return -1;
-
- if(!(s->flags2 & CODEC_FLAG2_CHUNKS) && !s->current_picture_ptr){
- if (avctx->skip_frame >= AVDISCARD_NONREF || s->hurry_up) return 0;
- av_log(avctx, AV_LOG_ERROR, "no frame!\n");
- return -1;
- }
-
- if(!(s->flags2 & CODEC_FLAG2_CHUNKS) || (s->mb_y >= s->mb_height && s->mb_height)){
- Picture *out = s->current_picture_ptr;
- Picture *cur = s->current_picture_ptr;
- Picture *prev = h->delayed_output_pic;
- int i, pics, cross_idr, out_of_order, out_idx;
-
- s->mb_y= 0;
-
- s->current_picture_ptr->qscale_type= FF_QSCALE_TYPE_H264;
- s->current_picture_ptr->pict_type= s->pict_type;
-
- h->prev_frame_num_offset= h->frame_num_offset;
- h->prev_frame_num= h->frame_num;
- if(!s->dropable) {
- h->prev_poc_msb= h->poc_msb;
- h->prev_poc_lsb= h->poc_lsb;
- execute_ref_pic_marking(h, h->mmco, h->mmco_index);
- }
-
- /*
- * FIXME: Error handling code does not seem to support interlaced
- * when slices span multiple rows
- * The ff_er_add_slice calls don't work right for bottom
- * fields; they cause massive erroneous error concealing
- * Error marking covers both fields (top and bottom).
- * This causes a mismatched s->error_count
- * and a bad error table. Further, the error count goes to
- * INT_MAX when called for bottom field, because mb_y is
- * past end by one (callers fault) and resync_mb_y != 0
- * causes problems for the first MB line, too.
- */
- if (!FIELD_PICTURE)
- ff_er_frame_end(s);
-
- MPV_frame_end(s);
-
- if (s->first_field) {
- /* Wait for second field. */
- *data_size = 0;
-
- } else {
- cur->interlaced_frame = FIELD_OR_MBAFF_PICTURE;
- /* Derive top_field_first from field pocs. */
- cur->top_field_first = cur->field_poc[0] < cur->field_poc[1];
-
- //FIXME do something with unavailable reference frames
-
-#if 0 //decode order
- *data_size = sizeof(AVFrame);
-#else
- /* Sort B-frames into display order */
-
- if(h->sps.bitstream_restriction_flag
- && s->avctx->has_b_frames < h->sps.num_reorder_frames){
- s->avctx->has_b_frames = h->sps.num_reorder_frames;
- s->low_delay = 0;
- }
-
- pics = 0;
- while(h->delayed_pic[pics]) pics++;
-
- assert(pics+1 < sizeof(h->delayed_pic) / sizeof(h->delayed_pic[0]));
-
- h->delayed_pic[pics++] = cur;
- if(cur->reference == 0)
- cur->reference = DELAYED_PIC_REF;
-
- cross_idr = 0;
- for(i=0; h->delayed_pic[i]; i++)
- if(h->delayed_pic[i]->key_frame || h->delayed_pic[i]->poc==0)
- cross_idr = 1;
-
- out = h->delayed_pic[0];
- out_idx = 0;
- for(i=1; h->delayed_pic[i] && !h->delayed_pic[i]->key_frame; i++)
- if(h->delayed_pic[i]->poc < out->poc){
- out = h->delayed_pic[i];
- out_idx = i;
- }
-
- out_of_order = !cross_idr && prev && out->poc < prev->poc;
- if(h->sps.bitstream_restriction_flag && s->avctx->has_b_frames >= h->sps.num_reorder_frames)
- { }
- else if(prev && pics <= s->avctx->has_b_frames)
- out = prev;
- else if((out_of_order && pics-1 == s->avctx->has_b_frames && pics < 15)
- || (s->low_delay &&
- ((!cross_idr && prev && out->poc > prev->poc + 2)
- || cur->pict_type == B_TYPE)))
- {
- s->low_delay = 0;
- s->avctx->has_b_frames++;
- out = prev;
- }
- else if(out_of_order)
- out = prev;
-
- if(out_of_order || pics > s->avctx->has_b_frames){
- for(i=out_idx; h->delayed_pic[i]; i++)
- h->delayed_pic[i] = h->delayed_pic[i+1];
- }
-
- if(prev == out)
- *data_size = 0;
- else
- *data_size = sizeof(AVFrame);
- if(prev && prev != out && prev->reference == DELAYED_PIC_REF)
- prev->reference = 0;
- h->delayed_output_pic = out;
-#endif
-
- if(out)
- *pict= *(AVFrame*)out;
- else
- av_log(avctx, AV_LOG_DEBUG, "no picture\n");
- }
- }
-
- assert(pict->data[0] || !*data_size);
- ff_print_debug_info(s, pict);
-//printf("out %d\n", (int)pict->data[0]);
-#if 0 //?
-
- /* Return the Picture timestamp as the frame number */
- /* we subtract 1 because it is added on utils.c */
- avctx->frame_number = s->picture_number - 1;
-#endif
- return get_consumed_bytes(s, buf_index, buf_size);
-}
-#if 0
-static inline void fill_mb_avail(H264Context *h){
- MpegEncContext * const s = &h->s;
- const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
-
- if(s->mb_y){
- h->mb_avail[0]= s->mb_x && h->slice_table[mb_xy - s->mb_stride - 1] == h->slice_num;
- h->mb_avail[1]= h->slice_table[mb_xy - s->mb_stride ] == h->slice_num;
- h->mb_avail[2]= s->mb_x+1 < s->mb_width && h->slice_table[mb_xy - s->mb_stride + 1] == h->slice_num;
- }else{
- h->mb_avail[0]=
- h->mb_avail[1]=
- h->mb_avail[2]= 0;
- }
- h->mb_avail[3]= s->mb_x && h->slice_table[mb_xy - 1] == h->slice_num;
- h->mb_avail[4]= 1; //FIXME move out
- h->mb_avail[5]= 0; //FIXME move out
-}
-#endif
-
-#if 0 //selftest
-#undef random
-#define COUNT 8000
-#define SIZE (COUNT*40)
-int main(void){
- int i;
- uint8_t temp[SIZE];
- PutBitContext pb;
- GetBitContext gb;
-// int int_temp[10000];
- DSPContext dsp;
- AVCodecContext avctx;
-
- dsputil_init(&dsp, &avctx);
-
- init_put_bits(&pb, temp, SIZE);
- printf("testing unsigned exp golomb\n");
- for(i=0; i<COUNT; i++){
- START_TIMER
- set_ue_golomb(&pb, i);
- STOP_TIMER("set_ue_golomb");
- }
- flush_put_bits(&pb);
-
- init_get_bits(&gb, temp, 8*SIZE);
- for(i=0; i<COUNT; i++){
- int j, s;
-
- s= show_bits(&gb, 24);
-
- START_TIMER
- j= get_ue_golomb(&gb);
- if(j != i){
- printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
-// return -1;
- }
- STOP_TIMER("get_ue_golomb");
- }
-
-
- init_put_bits(&pb, temp, SIZE);
- printf("testing signed exp golomb\n");
- for(i=0; i<COUNT; i++){
- START_TIMER
- set_se_golomb(&pb, i - COUNT/2);
- STOP_TIMER("set_se_golomb");
- }
- flush_put_bits(&pb);
-
- init_get_bits(&gb, temp, 8*SIZE);
- for(i=0; i<COUNT; i++){
- int j, s;
-
- s= show_bits(&gb, 24);
-
- START_TIMER
- j= get_se_golomb(&gb);
- if(j != i - COUNT/2){
- printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s);
-// return -1;
- }
- STOP_TIMER("get_se_golomb");
- }
-
- printf("testing 4x4 (I)DCT\n");
-
- DCTELEM block[16];
- uint8_t src[16], ref[16];
- uint64_t error= 0, max_error=0;
-
- for(i=0; i<COUNT; i++){
- int j;
-// printf("%d %d %d\n", r1, r2, (r2-r1)*16);
- for(j=0; j<16; j++){
- ref[j]= random()%255;
- src[j]= random()%255;
- }
-
- h264_diff_dct_c(block, src, ref, 4);
-
- //normalize
- for(j=0; j<16; j++){
-// printf("%d ", block[j]);
- block[j]= block[j]*4;
- if(j&1) block[j]= (block[j]*4 + 2)/5;
- if(j&4) block[j]= (block[j]*4 + 2)/5;
- }
-// printf("\n");
-
- s->dsp.h264_idct_add(ref, block, 4);
-/* for(j=0; j<16; j++){
- printf("%d ", ref[j]);
- }
- printf("\n");*/
-
- for(j=0; j<16; j++){
- int diff= FFABS(src[j] - ref[j]);
-
- error+= diff*diff;
- max_error= FFMAX(max_error, diff);
- }
- }
- printf("error=%f max_error=%d\n", ((float)error)/COUNT/16, (int)max_error );
-#if 0
- printf("testing quantizer\n");
- for(qp=0; qp<52; qp++){
- for(i=0; i<16; i++)
- src1_block[i]= src2_block[i]= random()%255;
-
- }
-#endif
- printf("Testing NAL layer\n");
-
- uint8_t bitstream[COUNT];
- uint8_t nal[COUNT*2];
- H264Context h;
- memset(&h, 0, sizeof(H264Context));
-
- for(i=0; i<COUNT; i++){
- int zeros= i;
- int nal_length;
- int consumed;
- int out_length;
- uint8_t *out;
- int j;
-
- for(j=0; j<COUNT; j++){
- bitstream[j]= (random() % 255) + 1;
- }
-
- for(j=0; j<zeros; j++){
- int pos= random() % COUNT;
- while(bitstream[pos] == 0){
- pos++;
- pos %= COUNT;
- }
- bitstream[pos]=0;
- }
-
- START_TIMER
-
- nal_length= encode_nal(&h, nal, bitstream, COUNT, COUNT*2);
- if(nal_length<0){
- printf("encoding failed\n");
- return -1;
- }
-
- out= decode_nal(&h, nal, &out_length, &consumed, nal_length);
-
- STOP_TIMER("NAL")
-
- if(out_length != COUNT){
- printf("incorrect length %d %d\n", out_length, COUNT);
- return -1;
- }
-
- if(consumed != nal_length){
- printf("incorrect consumed length %d %d\n", nal_length, consumed);
- return -1;
- }
-
- if(memcmp(bitstream, out, COUNT)){
- printf("mismatch\n");
- return -1;
- }
- }
-
- printf("Testing RBSP\n");
-
-
- return 0;
-}
-#endif
-
-
-static int decode_end(AVCodecContext *avctx)
-{
- H264Context *h = avctx->priv_data;
- MpegEncContext *s = &h->s;
-
- av_freep(&h->rbsp_buffer[0]);
- av_freep(&h->rbsp_buffer[1]);
- free_tables(h); //FIXME cleanup init stuff perhaps
- MPV_common_end(s);
-
-// memset(h, 0, sizeof(H264Context));
-
- return 0;
-}
-
-
-AVCodec h264_decoder = {
- "h264",
- CODEC_TYPE_VIDEO,
- CODEC_ID_H264,
- sizeof(H264Context),
- decode_init,
- NULL,
- decode_end,
- decode_frame,
- /*CODEC_CAP_DRAW_HORIZ_BAND |*/ CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
- .flush= flush_dpb,
-};
-
-#include "svq3.c"
+#endif /* FFMPEG_RECTANGLE_H */
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