[FFmpeg-user] Duplicate frame when use seek option.

[Carl Eugen Hoyos]

tim nicholson <nichot20-at-yahoo.com <at> ffmpeg.org> writes:

> I have also found using vframes problematical in that 
> you tend to get inconsistent mvhd and mdhd atoms unless 
> you also use -shortest, while using -t is fine.

This doesn't sound familiar to me. Did you report this?

> Trying to understand why it should need to duplicate a 
> frame to get cfr though.

This is just the usual issue that the FFmpeg mov muxer 
can't do variable frame rate.

> Sounds like it could do with a patch.

Certainly.

Carl Eugen