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avcodec/utils: check sar only when width/height are set 

This fixes loosing the perfectly valid SAR when width=height=0

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-06-20 23:02:52 +02:00
parent 0dceefc5fa
commit fe43facd65
1 changed files with 2 additions and 1 deletions
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3
libavcodec/utils.c
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@ -819,7 +819,8 @@ int ff_init_buffer_info(AVCodecContext *avctx, AVFrame *frame)
if (!frame->sample_aspect_ratio.num)
frame->sample_aspect_ratio = avctx->sample_aspect_ratio;
if (av_image_check_sar(frame->width, frame->height,
if (frame->width && frame->height &&
av_image_check_sar(frame->width, frame->height,
frame->sample_aspect_ratio) < 0) {
av_log(avctx, AV_LOG_WARNING, "ignoring invalid SAR: %u/%u\n",
frame->sample_aspect_ratio.num,