Help with TV capture (mplayer/brooktree/audigy)

Fri Apr 22 23:21:50 PDT 2005

On Thu, Apr 21, 2005 at 10:14:26PM +0400, Yuriy Tsibizov wrote:
> > 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
> mic is (possible) connected via AC97 codec. You should try to set AC97
> DSP input rec volume to 100.
> 
> > $ mixer =rec mic
> > Recording source: mic
> This does not have any effect for driver. If you record from AC97 source,
> it will always record 'stereo mix' (I can't rememeber, why it was done
> this way, it was done long time ago).

WORKS like a charm.

$ emuctlr rset in0 100 # enablind 100 on recording
in0     AC97 Codec                0:0   (100:100)

$ wavrec test.wav	# WORKS
# recors, I just have made it but I need to get better quality (and stereo)
# and sounds a crowded metro

> If you look into -multimedia archives, there was a question about sound
> recording on Audigy 2 cards (with emu10kx driver) around Feb 23th. As I
> can remember, we was unable to record anything on Audigy 2. You can try
> following test:
> 
> 1. set recording level from FX0 to 100
> 2. set level on "A/D converter (REC)" to 100
> 3. play something in one window / virtual console and record in another
> window / virtual console.
> If sound recording works, than you will record sound you playing.

	Intereseting when you want to pipe an application stream
into another one. I'll try and give feedback afterwards.

-------------

1) audio

	Okay, I have the audio input  despite the suboptimal resultes.
Those will be fixed along the way.

	Next steps would be filtering and encoding. However, I would
like to get audio inside mplayer first.

	For perfomance, I am using

- no audio
$ mplayer -tv driver=bsdbt848:noaudio:width=640:height=480:input=0:norm=ntsc tv:// -vf denoise3d,lavcdeint -cache 524288

- how do I add audio? trying to use adevice does not work :(
$ mplayer -tv driver=bsdbt848:noaudio:width=640:height=480:input=0:norm=ntsc tv:// -vf denoise3d,lavcdeint -cache 524288

	For quality, I am using

- noaudio
$ mplayer -tv driver=bsdbt848:noaudio:width=640:height=480:input=0:norm=ntsc tv:// -vf hqdn3d,filmdint -cache 524288

	For very low quality, I am using

- noaudio
$ mplayer -tv driver=bsdbt848:noaudio:width=640:height=480:input=0:norm=ntsc tv:// -vf pp=hb/vb/dr/al/lb -cache 524288

	The audio quality is low but that's fixable once I increase
the bitrate when I get the audio into mplayer.

	I hope I am providing enough information. Let me if anymore
is necessary. Oh, the rca cables being used to connect the L/R
decoder outputs to the standard sterio connector to the Audigy2.
The cabling is shieled, the connectors are "gold" plated, as good
as it gets without importing. Nothing off the shelf :)` So I'm
hoping the problem is an interaction OS and Hardware.

	Any help appreciated.

	Regards,

$ mixer
Recording source: mic
Mixer vol      is currently set to  64:64
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	(100:100)
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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