[MPlayer-users] audio sync problem

[David C. Diemer]

Ian:

I had the same problem. My solution, the drastic one, was to download the 
.bz file, customize it, compile it, then install it. But that was for my 
installation.  I had no problems with the pre9.0 release, only the pre10 
release.  May backing off to the prior version will help.

In addition, you could try either of these two options:  add '-autosync 30' 
to the command line or put 'autosync = yes' in your ~/.mplayer/config file. 
This fixed some serious A/V problmes I had with pre9.0.  Also, you might 
want to use '-idx' on the command line to force rebuilding of the INDEX of 
the AVI if no INDEX was found.  Seeking will then be possible.  Of course, 
you could also put 'idx = yes' in your ~/.mplayer/config file, too.

So what does 'autosync' do?  According to the man page, autosync gradually 
adjusts the A/V sync based on audio delay measurements.  Specifying 
-autosync 0, the default, will cause frame timing to be based entirely on 
audio delay measurements.  Specifying -autosync 1 will do the same, but will 
subtly  change the A/V correction algorithm used.  An uneven video frame 
rate in a movie which plays fine with -nosound can often be helped by 
setting this to an integer value greater than 1. The higher the value, the 
closer the timing will be to -nosound. Try -autosync 30 to smooth out 
problems with sound drivers which do not implement a perfect audio delay 
measurement.  With this value, if large A/V sync offsets occur, they will 
only take about 1 or 2 seconds to settle out. This delay in reaction time to 
sudden A/V offsets should be the only side-effect of turning this op tion 
on, for all sound drivers.


Dave



----Original Message Follows----
From: Ian Truelsen <ian at ihtruelsen.dyndns.org>
Reply-To: mplayer-users at mplayerhq.hu
To: mplayer-users at mplayerhq.hu
Subject: [MPlayer-users] audio sync problem
Date: Mon, 25 Nov 2002 10:55:58 -0600

I have an avi in which the sound is about 3 seconds ahead of the video.
I have tried the delay setting and tried to set the ao_delay in
gui.conf, but neither method has had any affect. I am attaching a log
from mplayer to show what was detected.

Is there any other way to resync the audio that I could try? I should
point out that this avi is fine in Windows Video Player.

--
Ian Truelsen
Email: ian at ihtruelsen.dyndns.org
Homepage: http://www.ihtruelsen.dyndns.org
PGP key available at: http://www.ihtruelsen.dyndns.org/pgp.html
and http://pgp.mit.edu (search 'ihtruelsen')
<< mplayer.log >>
<< attach5 >>


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