[FFmpeg-devel] [PATCH 4/7] mpegvideo: use the AVVideoEncParams API for exporting QP tables
Anton Khirnov
anton at khirnov.net
Mon Mar 30 14:45:23 EEST 2020
Do it only when requested with the AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS
flag.
Drop previous code using the long-deprecated AV_FRAME_DATA_QP_TABLE*
API.
---
libavcodec/h263dec.c | 6 ++++--
libavcodec/mpeg12dec.c | 5 +++--
libavcodec/mpegpicture.c | 1 +
libavcodec/mpegpicture.h | 1 +
libavcodec/mpegvideo.c | 39 ++++++++++++++++++++++++++++--------
libavcodec/mpegvideo.h | 8 +++++++-
libavcodec/rv10.c | 5 +++--
libavcodec/rv34.c | 5 +++--
libavutil/video_enc_params.h | 2 ++
9 files changed, 55 insertions(+), 17 deletions(-)
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 8ee844e298..a5793ea320 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -28,6 +28,8 @@
#define UNCHECKED_BITSTREAM_READER 1
#include "libavutil/cpu.h"
+#include "libavutil/video_enc_params.h"
+
#include "avcodec.h"
#include "error_resilience.h"
#include "flv.h"
@@ -693,12 +695,12 @@ frame_end:
if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0)
return ret;
ff_print_debug_info(s, s->current_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1);
+ ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, AV_VIDEO_ENC_PARAMS_H263);
} else if (s->last_picture_ptr) {
if ((ret = av_frame_ref(pict, s->last_picture_ptr->f)) < 0)
return ret;
ff_print_debug_info(s, s->last_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1);
+ ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, AV_VIDEO_ENC_PARAMS_H263);
}
if (s->last_picture_ptr || s->low_delay) {
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index 67ce59d451..f35da4ce80 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -32,6 +32,7 @@
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/stereo3d.h"
+#include "libavutil/video_enc_params.h"
#include "avcodec.h"
#include "bytestream.h"
@@ -2070,7 +2071,7 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
if (ret < 0)
return ret;
ff_print_debug_info(s, s->current_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG2);
+ ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, AV_VIDEO_ENC_PARAMS_MPEG2);
} else {
if (avctx->active_thread_type & FF_THREAD_FRAME)
s->picture_number++;
@@ -2081,7 +2082,7 @@ static int slice_end(AVCodecContext *avctx, AVFrame *pict)
if (ret < 0)
return ret;
ff_print_debug_info(s, s->last_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG2);
+ ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, AV_VIDEO_ENC_PARAMS_MPEG2);
}
}
diff --git a/libavcodec/mpegpicture.c b/libavcodec/mpegpicture.c
index 5fce25ec6e..6a079e795c 100644
--- a/libavcodec/mpegpicture.c
+++ b/libavcodec/mpegpicture.c
@@ -225,6 +225,7 @@ static int alloc_picture_tables(AVCodecContext *avctx, Picture *pic, int encodin
pic->alloc_mb_width = mb_width;
pic->alloc_mb_height = mb_height;
+ pic->alloc_mb_stride = mb_stride;
return 0;
}
diff --git a/libavcodec/mpegpicture.h b/libavcodec/mpegpicture.h
index 2db3d6733a..4bcd666797 100644
--- a/libavcodec/mpegpicture.h
+++ b/libavcodec/mpegpicture.h
@@ -69,6 +69,7 @@ typedef struct Picture {
int alloc_mb_width; ///< mb_width used to allocate tables
int alloc_mb_height; ///< mb_height used to allocate tables
+ int alloc_mb_stride; ///< mb_stride used to allocate tables
AVBufferRef *mb_mean_buf;
uint8_t *mb_mean; ///< Table for MB luminance
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 22cab2854b..7b43c643f6 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -32,6 +32,8 @@
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/motion_vector.h"
+#include "libavutil/video_enc_params.h"
+
#include "avcodec.h"
#include "blockdsp.h"
#include "h264chroma.h"
@@ -1439,16 +1441,37 @@ void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
}
-int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
+int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p,
+ enum AVVideoEncParamsType qp_type)
{
- AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
- int offset = 2*s->mb_stride + 1;
- if(!ref)
+ AVVideoEncParams *par;
+ unsigned int nb_mb = p->alloc_mb_height * p->alloc_mb_width;
+ unsigned int x, y;
+
+ if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS))
+ return 0;
+
+ par = av_video_enc_params_create_side_data(f, nb_mb);
+ if (!par)
return AVERROR(ENOMEM);
- av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
- ref->size -= offset;
- ref->data += offset;
- return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
+
+ par->type = qp_type;
+
+ for (y = 0; y < p->alloc_mb_height; y++)
+ for (x = 0; x < p->alloc_mb_width; x++) {
+ const unsigned int block_idx = y * p->alloc_mb_width + x;
+ const unsigned int mb_xy = y * p->alloc_mb_stride + x;
+ AVVideoBlockParams *b = av_video_enc_params_block(par, block_idx);
+
+ b->src_x = x * 16;
+ b->src_y = y * 16;
+ b->w = 16;
+ b->h = 16;
+
+ b->delta_qp = p->qscale_table[mb_xy];
+ }
+
+ return 0;
}
static inline int hpel_motion_lowres(MpegEncContext *s,
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index 29e692f245..410d015df2 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -58,6 +58,7 @@
#include "libavutil/opt.h"
#include "libavutil/timecode.h"
+#include "libavutil/video_enc_params.h"
#define MAX_THREADS 32
@@ -713,7 +714,12 @@ void ff_mpeg_flush(AVCodecContext *avctx);
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict);
-int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type);
+/**
+ * Export the qscale table if requested through
+ * AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS.
+ */
+int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p,
+ enum AVVideoEncParamsType qp_type);
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix);
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c
index 3b41d30b92..fd88dede2d 100644
--- a/libavcodec/rv10.c
+++ b/libavcodec/rv10.c
@@ -28,6 +28,7 @@
#include <inttypes.h>
#include "libavutil/imgutils.h"
+#include "libavutil/video_enc_params.h"
#include "avcodec.h"
#include "error_resilience.h"
@@ -772,12 +773,12 @@ static int rv10_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0)
return ret;
ff_print_debug_info(s, s->current_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1);
+ ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, AV_VIDEO_ENC_PARAMS_H263);
} else if (s->last_picture_ptr) {
if ((ret = av_frame_ref(pict, s->last_picture_ptr->f)) < 0)
return ret;
ff_print_debug_info(s, s->last_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict,s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1);
+ ff_mpv_export_qp_table(s, pict,s->last_picture_ptr, AV_VIDEO_ENC_PARAMS_H263);
}
if (s->last_picture_ptr || s->low_delay) {
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index d171e6e1bd..04339d57fc 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -26,6 +26,7 @@
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
+#include "libavutil/video_enc_params.h"
#include "avcodec.h"
#include "error_resilience.h"
@@ -1617,13 +1618,13 @@ static int finish_frame(AVCodecContext *avctx, AVFrame *pict)
if ((ret = av_frame_ref(pict, s->current_picture_ptr->f)) < 0)
return ret;
ff_print_debug_info(s, s->current_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1);
+ ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, AV_VIDEO_ENC_PARAMS_H263);
got_picture = 1;
} else if (s->last_picture_ptr) {
if ((ret = av_frame_ref(pict, s->last_picture_ptr->f)) < 0)
return ret;
ff_print_debug_info(s, s->last_picture_ptr, pict);
- ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1);
+ ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, AV_VIDEO_ENC_PARAMS_H263);
got_picture = 1;
}
diff --git a/libavutil/video_enc_params.h b/libavutil/video_enc_params.h
index 8f97bc7127..c1afcb3a63 100644
--- a/libavutil/video_enc_params.h
+++ b/libavutil/video_enc_params.h
@@ -27,6 +27,8 @@
enum AVVideoEncParamsType {
AV_VIDEO_ENC_PARAMS_NONE = -1,
+ AV_VIDEO_ENC_PARAMS_MPEG2,
+ AV_VIDEO_ENC_PARAMS_H263,
};
/**
--
2.25.1
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