[MPlayer-users] Transcoding video with mencoder, audio becomes asynchronous
ron.l.johnson at cox.net
Fri Sep 23 14:26:29 CEST 2011
On 09/23/2011 04:01 AM, Louis Tim Larsen wrote:
> At 23-09-2011 00:59, Ron Johnson wrote:
>> On 09/22/2011 01:03 PM, Louis Tim Larsen wrote:
>>> Den 20-09-2011 20:19, Roger Pack skrev:
>>>>> I try to transcode some video with this command (to change the start
>>>>> mencoder input.avi -o output.avi -ovc lavc -oac copy
>>>>> -force-avi-aspect 16:9
>>>>> -ss 0:02:00
>>>>> But the audio of output.avi becomes asynchronous. It's like it's going
>>>>> faster and faster a little by little and the last part of the clip
>>>>> has no
>>>>> audio at all.
>>>> what about without lavc ?
>>> With -ovc copy instead of -ovc lavc I still get the same error.
>> What if you use HandBrakeCLI or ffmpeg?
> I only get the error when I use Mencoder with the -ss and/or the -endpos
> Like this command: mencoder input.avi -o output.avi -ovc copy -oac copy
> -force-avi-aspect 16:9 -ss 0:02:00
> And it's only the the versions in Ubuntu 11.10 x86_64 and the current
> Debian testing x86_64 (running on to different
> machines.(1.0~rc4.dfsg1+svn33713-1 and 1.0~rc4.dfsg1+svn33713-2)
> But in Ubuntu 11.04 x86_64 with 1.0~rc4.dfsg1-1ubuntu3 I didn't got this
This (ppa:motumedia/mplayer-daily) generates daily an up-to-date mplayer
and mencoder installable by apt. I strongly urge you to use it.
> I've tried with different input source and got the same problem, so it's
> not the source.
> And I've no problems using HandBrake, except it's difficult to change
> start/end time.
It's a bit obtuse... :)
HandBrakeCLI -blah -blah --start-at duration:120
Anyway, it only outputs to m4v and mkv.
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