[MPlayer-users] implicit (?) delay when writing a mpeg

[Alexander Roalter]

Am 23.09.2010 22:50, schrieb Lobster:
>    On 23/09/2010 11:26 a.m., Alexander Roalter wrote:
>> Hi,
>>
>> when I create a video with mencoder using the following settings:
>>
>> -of mpeg
>> -ovc lavc
>> -lavcopts vcodec=mpeg2video:vqmin=2:vqscale=2:keyint=12
>> -ofps 24
>> -oac mp3lame
>> -lameopts abr:padding=2
>> -srate 44100
>>
>> I get a video, where the audio is out of sync (by around 0.4 to 0.5
>> seconds).
>>
>> Playing the video with -delay 0.4 has the correct sync, but why is this
>> asynchronizity there in the first place?
>>
>>
> A Lot of it all depends on your source file.
> I would highly recommend you add -vf harddup  to your command line, if
> you notice any
> duplicate frame messages at the beginning of the encode they may be what
> cause your
> current av offset.
> The harddup filter will make MEncoder encode those duplicate frames to
> keep av sync.

Unfortunately, it didn't solve the problem, now the delay is ~0.2.
I'll try the same without changing the frame rate, but are the other 
suggestions?


-- 
cheers,
Alex