On 16.12.2015 22:18, Luca Barbato wrote:
> On 16/12/15 20:56, Andreas Cadhalpun wrote:
>> Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
>> ---
>> libavformat/nuv.c | 4 ++++
>> 1 file changed, 4 insertions(+)
>>
>> diff --git a/libavformat/nuv.c b/libavformat/nuv.c
>> index 2a1b70f..4cb28d5 100644
>> --- a/libavformat/nuv.c
>> +++ b/libavformat/nuv.c
>> @@ -172,6 +172,10 @@ static int nuv_header(AVFormatContext *s)
>> if (aspect > 0.9999 && aspect < 1.0001)
>> aspect = 4.0 / 3.0;
>> fps = av_int2double(avio_rl64(pb));
>> + if (fps <= 0.0f) {
>> + av_log(s, AV_LOG_ERROR, "Invalid frame rate %f\n", fps);
>> + return AVERROR_INVALIDDATA;
>> + }
>>
>> // number of packets per stream type, -1 means unknown, e.g. streaming
>> v_packs = avio_rl32(pb);
>>
>
> What happens if a negative fps is used?
It doesn't make sense. Or what is a negative frame rate supposed to mean?
Also it triggers an av_assert2 in FFmpeg's av_rescale_rnd.
Best regards,
Andreas
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