[MEncoder-users] Mencoder adding AVI file header to MPEG2 capture from V4L device?

Rich Felker dalias at aerifal.cx
Fri Jun 10 22:40:34 CEST 2005


On Fri, Jun 10, 2005 at 03:42:23PM -0400, Brian Keener wrote:
> Saitov Menuhin wrote:
> 
> >On Fri, Jun 10, 2005 at 03:18:47PM -0400, Brian Keener wrote:
> > 
> >
> >>I'm trying to capture home movies from a bt848 device to hard disk, in 
> >>preperation for creating a DVD using TMPGENC dvd author in Windows.
> >>
> >>I'm running under Mandrake 10.1 for the captures.
> >>
> >>I tried initially to use FFMPEG, but experienced some really poor 
> >>performance, so I'm trying mencoder now.
> >>
> >>Here's my command line:
> >>
> >>mencoder -fps 30000/1001 -endpos 00:00:05 -oac mp3lame -ovc lavc 
> >>-lameopts mode=1:vbr=1:q=4 -lavcopts vcodec=mpeg2video:vbitrate=6000 -tv 
> >>driver=v4l2:norm=ntsc:input=2:adevice=/dev/dsp1:width=720:height=480 -vf 
> >>harddup -af volume=-1 -o tv.mpg tv://
> >>
> >>   
> >>
> >
> >Try  with -of mpeg then writes a mpeg file.
> >
> >Menuhin
> >
> > 
> >
> I added "-of mpeg" and now I'm experiencing horribly audio/video sync 
> problems.  At random intervals, I get hundreds of

VBR audio is not allowed in mpeg format (it's possible but not
supported and most players won't support it anyway). Also for most
purposes you don't want mp3 audio in mpeg files at all. Either use mp2
or ac3..

Rich




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