[Nottingham] mp4 playback audio slippage (loss of sync)

Dan Caseley dan at caseley.me.uk
Tue Sep 11 21:04:29 UTC 2012

I was joining avi video files a good while back and had the same sound
problems. I have this script left over in my bag of tricks. I almost
certainly pinched it from a forum somewhere because I really don't know
what I'm doing with video content.

for f in *_full.avi
OUTF=$(echo "$f" | sed "s/.avi/_final.avi/g")
mencoder -forceidx -oac copy -ovc copy "$f" -o "$OUTF"



On 11 September 2012 21:40, Nick Leverton wrote:

> On Tue, Sep 11, 2012 at 09:24:41PM +0100, Jason Irwin wrote:
> > On 11/09/12 19:53, Martin wrote:
> > > cat file??.mp4 >video.mp4
> > Shouldn't you be using ffmpeg or something?  I'll confess to only using
> > it for basic transcoding.
> >
> > Kdenlive?  Kino?  LiVES?
> > http://kdenlive.org/
> > http://kinodv.org/
> > http://lives.sourceforge.net/
> >
> > The easiest thing might be to keep the vids as separate files and just
> > use a playlist.
> >
> > Heck, VLC can take a playlist and spit out a single, contiguous file.
> > Won't let you do all the fancy-shmancy levelling of the others; but
> > should do it if you are in a bind.
> If just display is wanted then Xine has good playlist behaviour, we
> used to use it (minus GUI) at the last place I worked for displaying
> video adverts.  We did the playlists programmatically but I believe
> there are third party editors for Xine playlists that are better than
> the built-in editor.
> Nick
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