[MEncoder-users] Video and Audio async

[Tobias Brockamp]

Hi everybody,

i did an upload of an uncompressed avi on my server:

http://www.alexjacob.info/uploads/vid/vid_raw.avi

I also upload a video which i have encoded with Xvid/mp3:

http://www.alexjacob.info/uploads/vid/vid_xvid_vdub.avi

As you can see the audiostream is 60ms shorter than the videostream.

Any suggestions?


Kind regards,


Tobias Brockamp


Am 23.03.2007 um 11:39 schrieb Tobias Brockamp:

> The video is in pal format i create it with Adobe Premiere Elements  
> 3.0. I tried to encode the file with several Tools VirtualDub,  
> ffmpeg and mencoder and
> i always have the problem. The mencoder version i use is from a  
> binary on OSX.
>
> Am 23.03.2007 um 04:38 schrieb larrystotler at netscape.net:
>
>> -----Original Message-----
>> From: tobiasbrockamp at gmx.de
>>> Sorry, but this does not solve my problem. I still have different
>> length of video and audio.
>>> Just for consideration, i tried to import an AVI-File into iMovie on
>> my Mac, i then export the
>>> movie for the iPod. The video file i get is 100%sync, audio and  
>>> video
>> have the same lenght.
>>> I know that iPod is mp4/h264/aac but i also have the problem with  
>>> this
>> codecs over ffmpeg
>>> or mencoder.
>>> Also interesting is that when i import an AVI which has different
>> length for video and audio
>>> into iMovie and export it. The resulting video is 100% sync  
>>> again. Why
>> can't ffmpeg or mencoder
>>> do that? Or do they? When yes, pleaaaaase tell me how!
>>
>> Ok, when you said that this was a raw avi file, what are you using  
>> to create it, or what was used to create it.  Further, is this an  
>> ntsc or pal format file.  I've heard that if you try to re-encode  
>> from pal to ntsc, sometimes you can get it out of sync.  The  
>> reason I ask if that you specified 25fps, and isn't that a pal  
>> format?  I guess unless you could post the file or a small part  
>> for someone else to look at and try, we can't do much to help.   
>> Also, what version of mencoder are you using?  Is it a binary, or  
>> did you compile it?
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