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dpx: sanitize aspect ratio. 

Fixes some samples where the ratio is declared as -1/-1.
This commit is contained in:
Nicolas George 2012-06-18 11:39:26 +02:00
parent 2fc354f90d
commit 8b421fad24
1 changed files with 6 additions and 0 deletions
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6
libavcodec/dpx.c
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@ -109,6 +109,12 @@ static int decode_frame(AVCodecContext *avctx,
buf += 825;
avctx->sample_aspect_ratio.num = read32(&buf, endian);
avctx->sample_aspect_ratio.den = read32(&buf, endian);
if (avctx->sample_aspect_ratio.num > 0 && avctx->sample_aspect_ratio.den > 0)
av_reduce(&avctx->sample_aspect_ratio.num, &avctx->sample_aspect_ratio.den,
avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den,
0x10000);
else
avctx->sample_aspect_ratio = (AVRational){ 0, 0 };
switch (descriptor) {
case 51: // RGBA