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List:       mjpeg-users
Subject:    [Mjpeg-users]  lavplay audio still not working
From:       "Janos G. Komaromi" <janosk () earthlink ! net>
Date:       2008-05-03 3:00:30
Message-ID: 481BD54E.1090708 () earthlink ! net
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Dear developers and users of mjpegtools,

I still do not have sound when trying to play a video clip with lavplay. 
It plays well with any other Linux or windows application, but lavplay 
starts with a short burst of distorted sound and then nothing. The video 
goes through but the speaker is mute.

I have done a lot of clean up on my system in the past few months and 
learned quite a bit about Linux. I have alsa installed in the kernel and 
it also has oss emulation (/dev/dsp). I have recompiled a lot of stuff, 
including mjpoegtools and everything (mplayer, audacity, etc.) work just 
as well as before. Same thing: I can record video clip with mjpegtools 
but when playing it back there is no sound, even though sound was 
recorded correctly as evidenced by playing the same clip with mplayer.

I begin to think that this problem is a bug and has nothing to do with 
my soundcard. I can play wav file with audacity using either /dev/dsp or 
alsa. The /dev/dsp is a memory mapped device; fuser only lists it with 
fuser -m. Yet, lavplay requires the -U option not to crash. But then 
there is no sound.


I'd appreciate any ideas that help.

Thanks,

jankom


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