[MPlayer-dev-eng] Sound synchronization problem

Adam Tla/lka atlka at pg.gda.pl
Thu Aug 5 16:16:07 CEST 2004


Hi,

Strange, but while using ALSA output I observe a little 
sound desync. If you look at a person talking you can observe that
sound of voice is a bit too late. What is strange if I use -ao oss
which is emulated by aoss (LD_PRELOAD set) method I can hear almost
perfect sync. A-V output shows better sync while using native ALSA
but this is not true - maybe in this case only ? ffmpg:ffdivx
and mp3lib:mp3.
What is more funny I have another film (low-res and low-quality)
which have almost perfect A/V sync but with aoss approach
we have normal sound while video is delayed and A/V desync increases
every second. Just speed of video is too low.
libs/codecs ffmpg:ffmp42  and mp3lib:mp3.
It looks like some problems with MS video formats and A/V sync
while using emlated OSS. Same is seen while playing MS streams too
mms:// .

Regards
-- 
Adam Tla/lka      mailto:atlka at pg.gda.pl    ^v^ ^v^ ^v^
System  & Network Administration Group           ~~~~~~
Computer Center,  Gdansk University of Technology, Poland
PGP public key:   finger atlka at sunrise.pg.gda.pl




More information about the MPlayer-dev-eng mailing list