Help with TV capture (mplayer/brooktree/audigy)

Mario Sergio Fujikawa Ferreira lioux at
Thu Apr 21 09:35:42 PDT 2005

On Thu, Apr 21, 2005 at 10:25:29AM +0100, Steve O'Hara-Smith wrote:
> On Wed, 20 Apr 2005 23:18:47 -0300
> Mario Sergio Fujikawa Ferreira <lioux at> wrote:
> > 	So I turned to mplayer :) Here goes my setup. I have satellite
> > cable which means I cannot use the BrookTree's tunner since the tv
> > input is encoded. I connected the satellite decoder to the video
> > input connector.
> 	You might get better results connecting the SCART on the decoder to the
> S-Video input on the BrookTree card - I'm doing that with a DTV box at the moment.
> You need the right kind of SCART->S-Video converter (one with a switch is best IME).

	Unfortunaly, the satellite decoder only has S-Video/RCA
output so I picked the S-Video one.  Furthermore, my BrookTree card
only has RCA input. Therefore, I am using a S-Video to RCA "converter".

> > 	2) Every few seconds the video stream seems to choke; thus,
> > giving me an effect similar to the famous interlaced "blinders
> > effect" so I added a deinterlacer filter
> 	Sync detection problems perhaps.

	Any ideas on how to fix that? I have no problems with a lot
of test x trials :)

> > 	Furthermore, I am not sure how can I get audio input. I can
> > listen to dvds, mp3s, ogms just fine though.
> > 
> > 	I connected the audio output to the mic connector of the
> > audigy sound card. Nonetheless, I am not sure how can I hear this
> > audio. Yeah, I am a bit clueless. :) I am using the latest audigy
> > driver found at
> 	It might overload the mic input. Does mixer =rec mic help ? Post the output
> of mixer if not.

	It did not help :( I set the satellite decoder volume to max to make
sure I had a good input. Then, I redid my steps

mixer rec 100           ## set record bus volume
emuctrl amp 4           ## amplify every input four times
emuctrl set out13 100   ## set recording volume for DSP output
emuctrl rset in6 100    ## set recording volume for DSP input

$ mixer =rec mic
Recording source: mic

wavrec test.wav         ## record 10s using wavrec from ports/audio/wavplay port


$ wavrec -d /dev/audio0.6   ## did not work as well

$ mixer
Mixer vol      is currently set to  84:84
Mixer pcm      is currently set to  81:81
Mixer speaker  is currently set to  75:75
Mixer line     is currently set to  75:75
Mixer mic      is currently set to  83:83
Mixer cd       is currently set to  75:75
Mixer rec      is currently set to 100:100
Mixer ogain    is currently set to  50:50
Mixer line1    is currently set to  75:75
Mixer phin     is currently set to   0:0
Mixer phout    is currently set to   0:0
Mixer video    is currently set to  75:75

$ emuctrl list
Id      Description               Vol   RecVol
FX (PCM) buses
fx0     DSP FX BUS 0             83:83  (0:0)
DSP Inputs
in0     AC97 Codec                0:0   (0:0)
in1     CD S/PDIF                 0:0   (0:0)
in2     Optical S/PDIF            0:0   (0:0)
in3     0x06                      0:0   (0:0)
in4     Line-In (2)               0:0   (100:100)
in5     Coaxial S/PDIF            0:0   (0:0)
in6     AUX2                      0:0   (100:100)
in7     0x0E                      0:0   (0:0)
DSP Outputs
out0    DIGITAL: Front            0:0
out1    DIGITAL: Center           0
out2    DIGITAL: Subwoofer        0
out3    Headphones              100:100
out4    DIGITAL: Rear             0:0
out5    Front                   100:100
out6    Center                  100
out7    Subwoofer               100
out8    Side                      0:0
out9    Rear                    100:100
out10   AC97 ??                 100:100
out11   0x12                      0:0
out12   0x14                      0:0
out13   A/D converter (REC)     100:100
out14   0x18                      0:0
out15   0x1A                      0:0
out16   0x1C                      0:0
out17   0x1E                      0:0


Mario S F Ferreira - DF - Brazil - "I guess this is a signature."
feature, n: a documented bug | bug, n: an undocumented feature

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