[FFmpeg-devel] [PATCH] fftools/ffmpeg: add option to hide vsync warnings

Gyan Doshi gyandoshi at gmail.com
Wed Jun 27 15:08:43 EEST 2018

On 27-06-2018 05:13 PM, Michael Niedermayer wrote:

> It was intended IIRC to detect cases where the code misbeahves or where the
> input/demuxer/parser is badly broken as in:
> timestamps:     1 2 4  5 7  9
> durations:      9 8 1 -3 7 99
> Maybe the condition to display the warning is faulty

It can be triggered by the following command form:

     ffmpeg -f image2 -framerate X -i images -r Y -vsync vfr out

where 0.6*X < Y < X.

It always spams my console when I'm saving a live capture to MPEG-TS. 
This patch is less about the logic and more about a cleaner stderr.

Are you planning to revisit the logic? If not, I'd like to push this.


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