[FFmpeg-user] concat, "Too many invisible frames"

Nicolas George george at nsup.org
Sat Aug 20 16:36:33 EEST 2022

Emanuel Berg (12022-08-20):
> o/
> I try to concat two webm files and get
>   Too many invisible frames
> The files have different resolutions, is that why it fails?
> If so, how do you then "normalize" them before concat'ing?
> If it isn't that, then why?

I suspect some formats just have too complex features to allow for
simple concatenation.

concat is not guaranteed to work with streams that have different
parameters. There is no way around that without transcoding. To
normalize, use the concat filter and transcode.

Sorry I cannot be of more help.


  Nicolas George
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