[MPlayer-users] btaudio + TV recording problem

Jindrich Makovicka makovick at kmlinux.fjfi.cvut.cz
Tue Mar 18 18:00:17 CET 2003


Alan Murrell wrote:

>[Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>Hello,
>
>I have searched the mailing archive for this, and found ppl with the same 
>problem, but the solutions did not work, so I am hoping that someone here can 
>figure out what is going on?  I did notice in the FAQ that btaudio is 
>apparently not supported, but I did read some posts where people have gotten 
>to work, so I figured that was an old FAQ entry.  Anyway, let's start with my 
>setup:
>
>SOFTWARE:
>    - Mandrake Linux 9.0
>    - MPlayer 0.90rc4
>HARDWARE:
>    - ATI VE Wonder (the audio cable *is* plugged into the "audio out" on the 
>VE Wonder and the "audio in" on my soundcard)
>    - Matrox G400 (for the TV out)
>SUMMARY:
>    - When attempting to record TV, I get a decent picture, and sound appears 
>to be recorded, but does not playback.
>    - I have confirmed that audio works, as I can play MP3's, other videos, 
>etc.
>    - just before recording, I started up 'aumix' and cranked up the IGain 
>setting, as well as Volume, Line, and PCM; I was able to hear the channel 
>through the stereo as it was being recorded, but upon playback, no sound
>
>And now for some information as far as Mencoder and MPlaer outputs, logs, etc.
>
>--- mencoder command ---
>mencoder -tv 
>on:driver=v4l:device=/dev/video0:width=320:height=240:norm=NTSC:chanlist=us-cable:channel=45:adevice=/dev/dsp2:forceaudio:forcechan=2 
>-o /media/Video/recorded/output.avi -ovc lavc -lavcopts 
>vcodec=mpeg4:vbitrate=900 -oac mp3lame -lameopts cbr:br=128
>--- mencoder command ---
>  
>
Does it really hang with the soudcard used for recording, i.e. when 
omitting adevice=/dev/dsp2:forceaudio:forcechan=2 stuff or choosing 
/dev/dsp or /dev/dsp0 as adevice?

Some cards cannot use btaudio for recording, or they capture just 
silence (like mine).

Regards,

-- 
Jindrich Makovicka




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