[vlc-devel] [PATCH] transcoding: avoid a divide by 0 when source video framerate is mistakenly set to 0 by a demuxer

Emeric Grange emeric.grange at gmail.com
Fri Oct 30 17:21:34 CET 2015

Oh, this is a void function, cannot return an error code here.

2015-10-28 19:47 GMT+01:00 Emeric Grange <emeric.grange at gmail.com>:
> 2015-10-28 18:33 GMT+01:00 Francois Cartegnie <fcvlcdev at free.fr>:
>> Le 28/10/2015 14:02, Emeric Grange a écrit :
>>>> Hi,
>>>> Yes you are right the default will probably be wrong, the goal was
>>>> only to avoid VLC segfaulting. My use case was trancoding mp4 file
>>>> with "DASH style" tracks from youtube, and the problem was not an
>>>> exotic framerate but just the mp4 parser unable to get framerate. Most
>>>> files are 24fps so 25 is not that far of.
>>>> Maybe the proper way to handle that situation is just to fail with an
>>>> error trace then.
>>>> Emeric
>>> Anything new about this patch?
>> Unsure about it, but setting a default frame rate at transcode level
>> might be wrong.
>> I believe that's the role of the user module to compute frame rate by
>> itself, especially because it sees data, and then the fix belongs to there.
> A simple warning trace + exit would be better then?
>> Francois
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