2019-01-31 15:58 GMT+01:00, Hristo Ivanov <[email protected]>:

>> Please note that "-vsync 0 -f mp4" is not valid as FFmpeg's
>> mp4 muxer only support cfr.
>
> Yeah, the generated file by this command is not playable by
> the default windows player, but vlc plays the file fine.

WMP only supports yuv420p, this is not related to cfr vs vfr.
(A former developer decided the the warning is not needed.)

The issue is not that playback is broken but that you cannot
use such an example to show a timing issue.

Carl Eugen
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