[FFmpeg-devel] [PATCH] dpx: sanitize aspect ratio.

Paul B Mahol onemda at gmail.com
Thu Jun 28 18:30:49 CEST 2012


On 6/28/12, Nicolas George <nicolas.george at normalesup.org> wrote:
> Le primidi 1er messidor, an CCXX, Nicolas George a ecrit :
>> Fixes some samples where the ratio is declared as -1/-1.
>>
>> Signed-off-by: Nicolas George <nicolas.george at normalesup.org>
>> ---
>>  libavcodec/dpx.c |    6 ++++++
>>  1 file changed, 6 insertions(+)
>>
>> diff --git a/libavcodec/dpx.c b/libavcodec/dpx.c
>> index dee5921..76a12aa 100644
>> --- a/libavcodec/dpx.c
>> +++ b/libavcodec/dpx.c
>> @@ -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
>
> Ping? I'll apply in a few hours if nobody objects.

I changed my mind, shouldn't this code be in more general place?


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