I have been having problems capturing video from my bttv based (WinTV
Go) card.  The session below is the result of trying to capture with
lavrec:

ed@jazzman:/tmp$ lavrec --software-encoding --geometry 640x480+0+0 --format a --input 
n --channel us-cable:4 test.avi
Ok, found channel 4 with frequency 67250
++ WARN: [lavrec] Unable to set negative priority for main thread
++ WARN: [lavrec] Pthread Real-time scheduling for main thread could not be enabled
**ERROR: [lavrec] Error initializing Audio: Audio task died. Reason: Error mapping 
audio buffer - Input/output error
++ WARN: [lavrec] Not ready for capture (state = 0)!
Press enter to start recording>
Recording time  :  0.00.00:00
Lost frames     : 000
A/V sync ins/del: 000/000
Audio errors    : 000

When I turn off audio using --audio-bitsize 0, everything records
correctly.  I am using ALSA 0.9rc6 with OSS emulation on.  I get the
following error when using OSS (module i180_audio, kernel 2.4.20):

ed@jazzman:/tmp$ lavrec --software-encoding --geometry 640x480+0+0 --format a --input 
n --channel us-cable:4 test.avi
Ok, found channel 4 with frequency 67250
++ WARN: [lavrec] Unable to set negative priority for main thread
++ WARN: [lavrec] Pthread Real-time scheduling for main thread could not be enabled
**ERROR: [lavrec] Error initializing Audio: Audio task died. Reason: Error setting 
mono/stereo
++ WARN: [lavrec] Not ready for capture (state = 0)!
Press enter to start recording>
Recording time  :  0.00.00:00
Lost frames     : 000
A/V sync ins/del: 000/000
Audio errors    : 000

I would really like to be able to capture audio with my video. :-)

Thanks in advance,

--
Edward Guldemond


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