[FFmpeg-devel] [PATCH v2 6/9] hevc_parser: remove HEVCContext usage
James Almer
jamrial at gmail.com
Tue May 2 01:38:42 EEST 2017
This gets rid of the duplicate, limited parser.
Signed-off-by: James Almer <jamrial at gmail.com>
---
Cosmetic changes only, needed to apply patch 9/9 on top of this.
libavcodec/hevc_parser.c | 177 +++++++++--------------------------------------
1 file changed, 32 insertions(+), 145 deletions(-)
diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c
index 501cbc3498..57f2b2bb3e 100644
--- a/libavcodec/hevc_parser.c
+++ b/libavcodec/hevc_parser.c
@@ -24,114 +24,31 @@
#include "golomb.h"
#include "hevc.h"
-#include "hevcdec.h"
+#include "hevc_ps.h"
+#include "hevc_sei.h"
#include "h2645_parse.h"
+#include "internal.h"
#include "parser.h"
#define START_CODE 0x000001 ///< start_code_prefix_one_3bytes
#define IS_IRAP_NAL(nal) (nal->type >= 16 && nal->type <= 23)
-
-#define ADVANCED_PARSER CONFIG_HEVC_DECODER
+#define IS_IDR_NAL(nal) (nal->type == HEVC_NAL_IDR_W_RADL || nal->type == HEVC_NAL_IDR_N_LP)
typedef struct HEVCParserContext {
ParseContext pc;
H2645Packet pkt;
HEVCParamSets ps;
+ HEVCSEIContext sei;
+ SliceHeader sh;
int parsed_extradata;
-#if ADVANCED_PARSER
- HEVCContext h;
-#endif
+ int poc;
+ int pocTid0;
} HEVCParserContext;
-#if !ADVANCED_PARSER
-static int hevc_parse_slice_header(AVCodecParserContext *s, H2645NAL *nal,
- AVCodecContext *avctx)
-{
- HEVCParserContext *ctx = s->priv_data;
- GetBitContext *gb = &nal->gb;
-
- HEVCPPS *pps;
- HEVCSPS *sps;
- unsigned int pps_id;
-
- get_bits1(gb); // first slice in pic
- if (IS_IRAP_NAL(nal))
- get_bits1(gb); // no output of prior pics
-
- pps_id = get_ue_golomb_long(gb);
- if (pps_id >= HEVC_MAX_PPS_COUNT || !ctx->ps.pps_list[pps_id]) {
- av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
- return AVERROR_INVALIDDATA;
- }
- pps = (HEVCPPS*)ctx->ps.pps_list[pps_id]->data;
- sps = (HEVCSPS*)ctx->ps.sps_list[pps->sps_id]->data;
-
- /* export the stream parameters */
- s->coded_width = sps->width;
- s->coded_height = sps->height;
- s->width = sps->output_width;
- s->height = sps->output_height;
- s->format = sps->pix_fmt;
- avctx->profile = sps->ptl.general_ptl.profile_idc;
- avctx->level = sps->ptl.general_ptl.level_idc;
-
- /* ignore the rest for now*/
-
- return 0;
-}
-
-static int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
- int buf_size, AVCodecContext *avctx)
-{
- HEVCParserContext *ctx = s->priv_data;
- int ret, i;
-
- ret = ff_h2645_packet_split(&ctx->pkt, buf, buf_size, avctx, 0, 0,
- AV_CODEC_ID_HEVC, 1);
- if (ret < 0)
- return ret;
-
- for (i = 0; i < ctx->pkt.nb_nals; i++) {
- H2645NAL *nal = &ctx->pkt.nals[i];
-
- /* ignore everything except parameter sets and VCL NALUs */
- switch (nal->type) {
- case HEVC_NAL_VPS: ff_hevc_decode_nal_vps(&nal->gb, avctx, &ctx->ps); break;
- case HEVC_NAL_SPS: ff_hevc_decode_nal_sps(&nal->gb, avctx, &ctx->ps, 1); break;
- case HEVC_NAL_PPS: ff_hevc_decode_nal_pps(&nal->gb, avctx, &ctx->ps); break;
- case HEVC_NAL_TRAIL_R:
- case HEVC_NAL_TRAIL_N:
- case HEVC_NAL_TSA_N:
- case HEVC_NAL_TSA_R:
- case HEVC_NAL_STSA_N:
- case HEVC_NAL_STSA_R:
- case HEVC_NAL_BLA_W_LP:
- case HEVC_NAL_BLA_W_RADL:
- case HEVC_NAL_BLA_N_LP:
- case HEVC_NAL_IDR_W_RADL:
- case HEVC_NAL_IDR_N_LP:
- case HEVC_NAL_CRA_NUT:
- case HEVC_NAL_RADL_N:
- case HEVC_NAL_RADL_R:
- case HEVC_NAL_RASL_N:
- case HEVC_NAL_RASL_R:
- if (buf == avctx->extradata) {
- av_log(avctx, AV_LOG_ERROR, "Invalid NAL unit: %d\n", nal->type);
- return AVERROR_INVALIDDATA;
- }
- hevc_parse_slice_header(s, nal, avctx);
- break;
- }
- }
-
- return 0;
-}
-#endif
-
/**
* Find the end of the current frame in the bitstream.
* @return the position of the first byte of the next frame, or END_NOT_FOUND
@@ -175,7 +92,6 @@ static int hevc_find_frame_end(AVCodecParserContext *s, const uint8_t *buf,
return END_NOT_FOUND;
}
-#if ADVANCED_PARSER
/**
* Parse NAL units of found picture and decode some basic information.
*
@@ -188,28 +104,17 @@ static inline int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
int buf_size, AVCodecContext *avctx)
{
HEVCParserContext *ctx = s->priv_data;
- HEVCContext *h = &ctx->h;
- GetBitContext *gb;
- SliceHeader *sh = &h->sh;
- HEVCParamSets *ps = &h->ps;
- HEVCSEIContext *sei = &h->sei;
+ SliceHeader *sh = &ctx->sh;
+ HEVCParamSets *ps = &ctx->ps;
+ HEVCSEIContext *sei = &ctx->sei;
int is_global = buf == avctx->extradata;
int i, ret;
- if (!h->HEVClc)
- h->HEVClc = av_mallocz(sizeof(HEVCLocalContext));
- if (!h->HEVClc)
- return AVERROR(ENOMEM);
-
- gb = &h->HEVClc->gb;
-
/* set some sane default values */
s->pict_type = AV_PICTURE_TYPE_I;
s->key_frame = 0;
s->picture_structure = AV_PICTURE_STRUCTURE_UNKNOWN;
- h->avctx = avctx;
-
ff_hevc_reset_sei(sei);
ret = ff_h2645_packet_split(&ctx->pkt, buf, buf_size, avctx, 0, 0,
@@ -219,13 +124,11 @@ static inline int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
for (i = 0; i < ctx->pkt.nb_nals; i++) {
H2645NAL *nal = &ctx->pkt.nals[i];
+ GetBitContext *gb = &nal->gb;
int num = 0, den = 0;
- h->nal_unit_type = nal->type;
- h->temporal_id = nal->temporal_id;
- *gb = nal->gb;
- switch (h->nal_unit_type) {
+ switch (nal->type) {
case HEVC_NAL_VPS:
ff_hevc_decode_nal_vps(gb, avctx, ps);
break;
@@ -237,7 +140,7 @@ static inline int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
break;
case HEVC_NAL_SEI_PREFIX:
case HEVC_NAL_SEI_SUFFIX:
- ff_hevc_decode_nal_sei(gb, avctx, sei, ps, h->nal_unit_type);
+ ff_hevc_decode_nal_sei(gb, avctx, sei, ps, nal->type);
break;
case HEVC_NAL_TRAIL_N:
case HEVC_NAL_TRAIL_R:
@@ -257,15 +160,15 @@ static inline int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
case HEVC_NAL_CRA_NUT:
if (is_global) {
- av_log(avctx, AV_LOG_ERROR, "Invalid NAL unit: %d\n", h->nal_unit_type);
+ av_log(avctx, AV_LOG_ERROR, "Invalid NAL unit: %d\n", nal->type);
return AVERROR_INVALIDDATA;
}
sh->first_slice_in_pic_flag = get_bits1(gb);
- s->picture_structure = h->sei.picture_timing.picture_struct;
- s->field_order = h->sei.picture_timing.picture_struct;
+ s->picture_structure = sei->picture_timing.picture_struct;
+ s->field_order = sei->picture_timing.picture_struct;
- if (IS_IRAP(h)) {
+ if (IS_IRAP_NAL(nal)) {
s->key_frame = 1;
sh->no_output_of_prior_pics_flag = get_bits1(gb);
}
@@ -348,31 +251,30 @@ static inline int parse_nal_units(AVCodecParserContext *s, const uint8_t *buf,
if (ps->sps->separate_colour_plane_flag)
sh->colour_plane_id = get_bits(gb, 2);
- if (!IS_IDR(h)) {
+ if (!IS_IDR_NAL(nal)) {
sh->pic_order_cnt_lsb = get_bits(gb, ps->sps->log2_max_poc_lsb);
- s->output_picture_number = h->poc = ff_hevc_compute_poc(h->ps.sps, h->pocTid0, sh->pic_order_cnt_lsb, h->nal_unit_type);
+ s->output_picture_number = ctx->poc = ff_hevc_compute_poc(ps->sps, ctx->pocTid0, sh->pic_order_cnt_lsb, nal->type);
} else
- s->output_picture_number = h->poc = 0;
-
- if (h->temporal_id == 0 &&
- h->nal_unit_type != HEVC_NAL_TRAIL_N &&
- h->nal_unit_type != HEVC_NAL_TSA_N &&
- h->nal_unit_type != HEVC_NAL_STSA_N &&
- h->nal_unit_type != HEVC_NAL_RADL_N &&
- h->nal_unit_type != HEVC_NAL_RASL_N &&
- h->nal_unit_type != HEVC_NAL_RADL_R &&
- h->nal_unit_type != HEVC_NAL_RASL_R)
- h->pocTid0 = h->poc;
+ s->output_picture_number = ctx->poc = 0;
+
+ if (nal->temporal_id == 0 &&
+ nal->type != HEVC_NAL_TRAIL_N &&
+ nal->type != HEVC_NAL_TSA_N &&
+ nal->type != HEVC_NAL_STSA_N &&
+ nal->type != HEVC_NAL_RADL_N &&
+ nal->type != HEVC_NAL_RASL_N &&
+ nal->type != HEVC_NAL_RADL_R &&
+ nal->type != HEVC_NAL_RASL_R)
+ ctx->pocTid0 = ctx->poc;
return 0; /* no need to evaluate the rest */
}
}
/* didn't find a picture! */
if (!is_global)
- av_log(h->avctx, AV_LOG_ERROR, "missing picture in access unit\n");
+ av_log(avctx, AV_LOG_ERROR, "missing picture in access unit\n");
return -1;
}
-#endif
static int hevc_parse(AVCodecParserContext *s,
AVCodecContext *avctx,
@@ -444,21 +346,6 @@ static void hevc_parser_close(AVCodecParserContext *s)
HEVCParserContext *ctx = s->priv_data;
int i;
-#if ADVANCED_PARSER
- HEVCContext *h = &ctx->h;
-
- for (i = 0; i < FF_ARRAY_ELEMS(h->ps.vps_list); i++)
- av_buffer_unref(&h->ps.vps_list[i]);
- for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++)
- av_buffer_unref(&h->ps.sps_list[i]);
- for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++)
- av_buffer_unref(&h->ps.pps_list[i]);
-
- h->ps.sps = NULL;
-
- av_freep(&h->HEVClc);
-#endif
-
for (i = 0; i < FF_ARRAY_ELEMS(ctx->ps.vps_list); i++)
av_buffer_unref(&ctx->ps.vps_list[i]);
for (i = 0; i < FF_ARRAY_ELEMS(ctx->ps.sps_list); i++)
--
2.12.1
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