[MEncoder-users] forcing encode of lost frames as duplicates
bugfood-ml at fatooh.org
Wed Aug 9 01:42:10 CEST 2006
Josh Sutton wrote:
> I'm trying to produce a video from a video server stream running
> across a lossy wireless link. The problem is that time needs to
> be preserved even if frames are lost. ie if I'm receiving nominally
> 30 fps and say 20 frames are lost, then the remaining 10 frames should
> be duplicated such that they still occupy 1 second.
> The duplicate frames work fine using mplayer and displaying on the screen.
> If I start mplayer displaying on the screen and disconnect the ethernet to
> simulate frame losses, then mplayer holds the last frame. However when I use
> mencoder to either copy or reencode the stream to disk, the missing frames
> are skipped (not inserted), and the playback shows time discontinuities.
> I've also tried using mplayer with the -vo jpeg option. But skipped frames are
> not encoded.
> the mencoder.exe harddup switch does not work.
You mean '-vf harddup', right?
> I suspect because the frames are
> missing, not duplicates.
What exactly is the video data you're feeding mencoder? Is it an MPEG,
or a series of JPEGs, or what?
Please post your full mencoder command line and the _entire_ output of
mencoder for a representative session. Without ever having done a
project like what you're doing, I could only speculate until I have more
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