Converting MKV to AVI

[kalinix]

On Sat, 2010-05-08 at 12:12 -0430, Patrick O'Callaghan wrote:

> On Sat, 2010-05-08 at 12:31 -0400, sean darcy wrote:
> > Patrick O'Callaghan wrote:
> > > On Sat, 2010-05-08 at 10:00 -0400, sean darcy wrote:
> > >> Patrick O'Callaghan wrote:
> > >> [...]> 
> > >>> <rant>
> > >>> Part of the problem is that all the above tools are clearly aimed at
> > >>> people who know what they're doing. Those of us uninterested in a career
> > >>> in multimedia technology are liable to be completely lost when
> > >>> struggling with any of the (incomplete and ambiguous) manuals, not to
> > >>> mention the baroque syntax of the command-line options. Why are there no
> > >>> "multimedia conversion for dummies" tools in Linux as there are in
> > >>> Windoze?
> > >>> </rant>
> > >>>
> > >>> Anyway, my question is this: does anyone have a useful recipe for this
> > >>> kind of thing?
> > >>>
> > >>> And for extra credit: how about converting FLV (Flash video)?
> > >>>
> > >>> poc
> > >>>
> > >> First, I agree with your rant. What the world needs is a media recipe wiki.
> > >>
> > >> But I'd try again with ffmpeg. It has the most active development and 
> > >> user group. The helpful users make up for the lousy docs.
> > > 
> > > Good to know :-)
> > > 
> > >> 1. Do you have a very recent version of ffmpeg? I'd urge you to use svn, 
> > >> but at least 0.5.1.
> > > 
> > > It's the standard Fedora repo version:
> > > ffmpeg-0.5-5.20091026svn.fc12.x86_64 so possibly not.
> > > 
> > 
> > rpmfusion has ffmpeg-0.6-0.3.20100429svn
> > 
> > 
> > >> 2. ffmpeg -i source.mkv -vcodec copy -acodec copy output.avi , should 
> > >> work if source mkv is in mpeg-4 and mp3.
> > > 
> > > It's H.264 and AC-3:
> > > 
> > >   Duration: 01:32:04.57, start: 0.000000, bitrate: N/A
> > >     Stream #0.0: Video: h264, yuv420p, 1280x720, PAR 1:1 DAR 16:9, 25 tbr, 1k tbn, 50 tbc
> > >     Stream #0.1(eng): Audio: ac3, 48000 Hz, 2 channels, s16
> > > 
> > 
> > Well AC-3 should work in your dvd, so try:
> > 
> > ffmpeg -i source.mkv -vcodec mpeg2video -acodec copy output.avi
> 
> As soon as it starts I get:
> [...]
> [NULL @ 0x1570030]error, non monotone timestamps 12288 >= 12288
> av_interleaved_write_frame(): Error while opening file
> 
> poc
> 
> 


I remember I converted once a flv to avi, using mencoder, with the
following command:

mencoder -oac copy -ovc lavc -o Output.avi Input.flv


and it worked.


HTH



Calin

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