[MEncoder-users] AC3 and Strange Video Playback
nkarnold at googlemail.com
Mon Dec 31 14:33:33 CET 2007
"Nigel Arnold" <nkarnold at googlemail.com> wrote in message
news:fkg55g$s32$1 at ger.gmane.org...
> OK, I've Changed the command line to
> mencoder dvd://1 -dvd-device R:\ -oac lavc -ovc lavc -lavcopts
> vcodec=mpeg4:vbitrate=1024:acodec=ac3:abitrate=384 -channels 6 -af
> channels=6 -of lavf -lavfopts format=avi -aid 0x80 -ofps
> 24000/1001 -Chapter 03-03 -o "AC3Test.avi"
> Exactly same problem, i can see in the mencoder output, it is now using
> the lavf muxer, but the resulting file is the same in terms of playback
> "Giacomo Comes" <comes at naic.edu> wrote in message
> news:20071220142946.GA5504 at monopoli.naic.edu...
>> On Thu, Dec 20, 2007 at 01:19:12PM -0000, Nigel Arnold wrote:
>>> I'm getting a problem creating any MPEG4 AVI with any AC3 audio track.
>>> I've tried RC2 and also a 25088 build as provided by Sherypa
>>> I''ve stripped back to a very basic bare command line,
>>> mencoder dvd://1 -dvd-device R:\ -oac lavc -ovc lavc -lavcopts
>>> vcodec=mpeg4:vbitrate=1024:acodec=ac3:abitrate=192 -ofps
>>> 24000/1001 -Chapter 03-03 -o "AC3 Test.avi"
>>> The resulting .avi file -
>>> 1. The video plays about 2-3 times faster than speed than normal (like a
>>> Fast forward) in VLC, and WMP
>>> 2. The video is not seekable, as soon as I position in VLC, the video
>>> in WMP If i seek, the video stops, audio still plays and takes about 10
>>> minutes for the video / audio to start playing again.
>>> This appears to be only related to AC3, as if I choose libmp3lame or
>>> libfaac, the video's are fine.
>>> I've tried the above command with a much earlier build 21190 and it
>>> fine. the resulting video file plays fine in VLC, WMP and MPlayer
>>> Any Ideas
>>> Thx in advance
>> It a old bug.
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