[MPlayer-users] Transcoding video with mencoder, audio becomes asynchronous

[Ovidio Pirvu]

2011/9/23 Louis Tim Larsen <louis at louis.dk>

> At 23-09-2011 15:49, Ovidio Pirvu wrote:
>
>> 2011/9/23 Ovidio Pirvu<obvi84 at gmail.com>
>>
>>
>>> 2011/9/23 Ron Johnson<ron.l.johnson at cox.net>
>>>
>>>  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
>>>>>>>>
>>>>>>>>> time):
>>>>>>>>> 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
>>>>> option.
>>>>> 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
>>>>> error.
>>>>>
>>>>>
>>>>>  https://launchpad.net/~****motumedia/+archive/mplayer-****daily<https://launchpad.net/%7E**motumedia/+archive/mplayer-**daily>
>>>> <https://launchpad.net/%**7Emotumedia/+archive/mplayer-**daily<https://launchpad.net/%7Emotumedia/+archive/mplayer-daily>
>>>> >
>>>>
>>>> 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.
>>>>
>>>> --
>>>> Supporting World Peace Through Nuclear Pacification
>>>>
>>>>
>>>  ______________________________****_________________
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>>>> **>
>>>>
>>>
>>>
>>> have you tried with -ovc pcm?
>>>
>>>
>>>
>>>  oops, sorry. I was meaning to say -oac pcm
>>
>>  Wow that worked with the version of mencoder included in Ubuntu 11.10
> (1.0~rc4.dfsg1+svn33713-1). But it's weird that -oac copy worked in
> 1.0~rc4.dfsg1-1ubuntu3 in Ubuntu 11.04.
> Thanks.
>
> --
> Regards Louis
>
>

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You can always try to use the daily compilations from the Motumedia team