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h264_parser: export video format and dimensions

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This commit is contained in:
Anton Khirnov 2015-02-09 14:41:50 +01:00
parent 5b1d9ceec7
commit 31d2039cb4
5 changed files with 58 additions and 1 deletions
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4
doc/APIchanges
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@ -13,6 +13,10 @@ libavutil: 2014-08-09
API changes, most recent first:
2015-xx-xx - xxxxxxx - lavc 56.13
Add width, height, coded_width, coded_height and format to
AVCodecParserContext.
2015-xx-xx - xxxxxxx - lavu 54.9.0
Add AV_PIX_FMT_QSV for QSV hardware acceleration.

22
libavcodec/avcodec.h
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@ -3883,6 +3883,28 @@ typedef struct AVCodecParserContext {
* For example, this corresponds to H.264 PicOrderCnt.
*/
int output_picture_number;
/**
* Dimensions of the decoded video intended for presentation.
*/
int width;
int height;
/**
* Dimensions of the coded video.
*/
int coded_width;
int coded_height;
/**
* The format of the coded data, corresponds to enum AVPixelFormat for video
* and for enum AVSampleFormat for audio.
*
* Note that a decoder can have considerable freedom in how exactly it
* decodes the data, so the format reported here might be different from the
* one returned by a decoder.
*/
int format;
} AVCodecParserContext;
typedef struct AVCodecParser {

29
libavcodec/h264_parser.c
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@ -275,6 +275,35 @@ static inline int parse_nal_units(AVCodecParserContext *s,
h->sps = *h->sps_buffers[h->pps.sps_id];
h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);
s->coded_width = 16 * h->sps.mb_width;
s->coded_height = 16 * h->sps.mb_height;
s->width = s->coded_width - (h->sps.crop_right + h->sps.crop_left);
s->height = s->coded_height - (h->sps.crop_top + h->sps.crop_bottom);
if (s->width <= 0 || s->height <= 0) {
s->width = s->coded_width;
s->height = s->coded_height;
}
switch (h->sps.bit_depth_luma) {
case 9:
if (CHROMA444(h)) s->format = AV_PIX_FMT_YUV444P9;
else if (CHROMA422(h)) s->format = AV_PIX_FMT_YUV422P9;
else s->format = AV_PIX_FMT_YUV420P9;
break;
case 10:
if (CHROMA444(h)) s->format = AV_PIX_FMT_YUV444P10;
else if (CHROMA422(h)) s->format = AV_PIX_FMT_YUV422P10;
else s->format = AV_PIX_FMT_YUV420P10;
break;
case 8:
if (CHROMA444(h)) s->format = AV_PIX_FMT_YUV444P;
else if (CHROMA422(h)) s->format = AV_PIX_FMT_YUV422P;
else s->format = AV_PIX_FMT_YUV420P;
break;
default:
s->format = AV_PIX_FMT_NONE;
}
avctx->profile = ff_h264_get_profile(&h->sps);
avctx->level = h->sps.level_idc;

2
libavcodec/parser.c
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@ -89,6 +89,8 @@ found:
s->dts_sync_point = INT_MIN;
s->dts_ref_dts_delta = INT_MIN;
s->pts_dts_delta = INT_MIN;
s->format = -1;
return s;
}

2
libavcodec/version.h
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@ -29,7 +29,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 56
#define LIBAVCODEC_VERSION_MINOR 12
#define LIBAVCODEC_VERSION_MINOR 13
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \