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lavc: add a sample_aspect_ratio field to AVFrame

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The sample aspect ratio is a per-frame property, so it makes sense to
define it in AVFrame rather than in the codec/stream context.
Simplify application-level sample aspect ratio information extraction,
and allow further simplifications.
This commit is contained in:
Stefano Sabatini 2011-04-29 13:04:47 +02:00 committed by Anton Khirnov
parent 671005558a
commit b58dbb5b03
6 changed files with 14 additions and 3 deletions
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2
avplay.c
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@ -1651,7 +1651,7 @@ static int input_request_frame(AVFilterLink *link)
picref->pts = pts; picref->pts = pts;
picref->pos = pkt.pos; picref->pos = pkt.pos;
picref->video->pixel_aspect = priv->is->video_st->codec->sample_aspect_ratio; picref->video->pixel_aspect = priv->frame->sample_aspect_ratio;
avfilter_start_frame(link, picref); avfilter_start_frame(link, picref);
avfilter_draw_slice(link, 0, link->h, 1); avfilter_draw_slice(link, 0, link->h, 1);
avfilter_end_frame(link); avfilter_end_frame(link);

1
cmdutils.c
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@ -1047,6 +1047,7 @@ int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
frame->top_field_first = picref->video->top_field_first; frame->top_field_first = picref->video->top_field_first;
frame->key_frame = picref->video->key_frame; frame->key_frame = picref->video->key_frame;
frame->pict_type = picref->video->pict_type; frame->pict_type = picref->video->pict_type;
frame->sample_aspect_ratio = picref->video->pixel_aspect;
return 1; return 1;
} }

7
libavcodec/avcodec.h
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@ -1258,6 +1258,13 @@ typedef struct AVFrame {
* decoding: set by AVCodecContext.get_buffer() * decoding: set by AVCodecContext.get_buffer()
*/ */
uint8_t **extended_data; uint8_t **extended_data;
/**
* sample aspect ratio for the video frame, 0/1 if unknown\unspecified
* - encoding: unused
* - decoding: Read by user.
*/
AVRational sample_aspect_ratio;
} AVFrame; } AVFrame;
struct AVCodecInternal; struct AVCodecInternal;

1
libavcodec/pthread.c
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@ -599,6 +599,7 @@ int ff_thread_decode_frame(AVCodecContext *avctx,
*picture = p->frame; *picture = p->frame;
*got_picture_ptr = p->got_frame; *got_picture_ptr = p->got_frame;
picture->pkt_dts = p->avpkt.dts; picture->pkt_dts = p->avpkt.dts;
picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
/* /*
* A later call with avkpt->size == 0 may loop over all threads, * A later call with avkpt->size == 0 may loop over all threads,

2
libavcodec/utils.c
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@ -584,6 +584,7 @@ void avcodec_get_frame_defaults(AVFrame *pic){
pic->pts= AV_NOPTS_VALUE; pic->pts= AV_NOPTS_VALUE;
pic->key_frame= 1; pic->key_frame= 1;
pic->sample_aspect_ratio = (AVRational){0, 1};
} }
AVFrame *avcodec_alloc_frame(void){ AVFrame *avcodec_alloc_frame(void){
@ -858,6 +859,7 @@ int attribute_align_arg avcodec_decode_video2(AVCodecContext *avctx, AVFrame *pi
ret = avctx->codec->decode(avctx, picture, got_picture_ptr, ret = avctx->codec->decode(avctx, picture, got_picture_ptr,
avpkt); avpkt);
picture->pkt_dts= avpkt->dts; picture->pkt_dts= avpkt->dts;
picture->sample_aspect_ratio = avctx->sample_aspect_ratio;
} }
emms_c(); //needed to avoid an emms_c() call before every return; emms_c(); //needed to avoid an emms_c() call before every return;

4
libavfilter/vsrc_movie.c
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@ -248,8 +248,8 @@ static int movie_get_frame(AVFilterLink *outlink)
movie->frame->pkt_dts : movie->frame->pkt_pts; movie->frame->pkt_dts : movie->frame->pkt_pts;
movie->picref->pos = movie->frame->reordered_opaque; movie->picref->pos = movie->frame->reordered_opaque;
movie->picref->video->pixel_aspect = st->sample_aspect_ratio.num ? if (!movie->frame->sample_aspect_ratio.num)
st->sample_aspect_ratio : movie->codec_ctx->sample_aspect_ratio; movie->picref->video->pixel_aspect = st->sample_aspect_ratio;
movie->picref->video->interlaced = movie->frame->interlaced_frame; movie->picref->video->interlaced = movie->frame->interlaced_frame;
movie->picref->video->top_field_first = movie->frame->top_field_first; movie->picref->video->top_field_first = movie->frame->top_field_first;
movie->picref->video->key_frame = movie->frame->key_frame; movie->picref->video->key_frame = movie->frame->key_frame;