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Sound dropping out
PostPosted: Thu Jan 29, 2004 2:34 pm Reply with quote
crow
 
Joined: 15 Jan 2004
Posts: 22




Ok, I finally got the nVidia drivers installed and mplayer built with xvmc support. Now my Athlon XP 2500+ only uses about 50% of the CPU when displaying HDTV. So to watch CBS in the Boston area, I would do:
Code:
dtvsignal /dev/video32 30
^C
mplayer -vo xvmc -vc ffmpeg12mc /dev/video32


The only problem is that every little bit (perhaps every 15 or 30 seconds), the sound drops out for a second or two. When it did this before, I assumed that the CPU just wasn't able to keep up with the stream, but now it never goes above 50%, so it shouldn't be that.

Any ideas?

I'm running 2.6.1-mm3, which uses a driver based on one of the older 2.4 drivers, so it could be that, but since I'm getting a perfect image, I would think that the transport stream is intact.
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Hmm.. sounds like a buffering issue
PostPosted: Fri Jan 30, 2004 7:20 am Reply with quote
kfowlks
Guest
 




I've had me share of this also, One thing that you might want to test is this. Using dtvsignal /dev/video32 30 > test.mpg &

then

mplayer -vo xvmc -vc ffmpeg12mc test.mpg

for me this adds just enough of a delay that mplayer has enough mpeg frames to recover from audio drop outs.


Kevin
PostPosted: Fri Jan 30, 2004 1:09 pm Reply with quote
Scott Larson
 
Joined: 15 Oct 2003
Posts: 713
Location: Portland, OR




It never hurts to start mplayer with -cache 8192.
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PostPosted: Fri Jan 30, 2004 9:05 pm Reply with quote
crow
 
Joined: 15 Jan 2004
Posts: 22




Code:
mplayer -vo xvmc -vc ffmpeg12mc -cache 8192 /dev/video32


That works great!

Thanks.
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Sound dropping out
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