[MPlayer-users] Re: Re: introducing DVD-to-DivX approach that fixes A/V sync problems

[Christopher J. Bottaro]

Rich Felker wrote:

> On Sat, Jul 09, 2005 at 01:23:52PM -0500, Christopher J. Bottaro wrote:
>> Rich Felker wrote:
>> 
>> >> Is there any trick that can be used to avoid a/v sync problems
>> >> with vbr audio using mencoder (mencoder or lame options)?
>> > 
>> > Yes, several.
>> <snip>
>> > 2. Dump the audio with mplayer -ao pcm and encode it with external
>> >    lame. Then run mencoder with -audiofile lame_output.mp3 -oac copy.
>> <snip>
>> 
>> I tried that and the A/V gradually desyncs over time on my portable media
>> device.  These are the commands I used:
>> 
>> mplayer dvd://1 -chapter 1-2 -vo null -ao pcm
>> 
>> lame -b 96 --resample 44.1 audiodump.wav audiodump.mp3
>> 
>> mencoder dvd://1 -chapter 1-2 -o test.avi -ovc xvid -xvidencopts
>> bitrate=196:max_bframes=0 -audiofile audiodump.mp3 -oac copy -vf
>> scale=160:128 -ofps 14000/1001
>                      ^^^^^
> was that supposed to be 24000?

No.  The device can only do 15 FPS max, but I noticed that it slows down a
little, so I opted for 14 FPS.

>> Any hints or ideas?  Thanks.
> 
> i don't see anything wrong with your commands..
> do you have a frameno.avi lying around?

No, darn.

> rich

Shoot, so close...yet so far...

-- C