Re: Pinnacle and Dazzle

On Thu, 22 Apr 2010 12:54:47 -0400, Davey wrote:

On Mon, 19 Apr 2010 20:09:35 +0100, Andy Furniss wrote:

Davey wrote:

[36475.333748] em28xx #0: V4L2 device registered as /dev/video0 and
/dev/vbi0
[36475.333766] em28xx #0: Found Pinnacle Dazzle DVC 90/DVC 100
[36475.333832] em28xx audio device (2304:021a): interface 1, class 1
[36475.333885] em28xx audio device (2304:021a): interface 2, class 1
[36475.333965] usbcore: registered new interface driver em28xx
[36475.642569] usbcore: registered new interface driver snd-usb-audio

Any help understanding that lot much appreciated. But it seems to be happy
that there is a Dazzle out there. Tonight, the picture is a lot less jerky,
even on VLC. But still no sound!

I have never used usb audio, but guessing from the blog example I would try

mplayer tv:// -tv
driver=v4l2:norm=NTSC:device=/dev/video0:audiorate=48000:immediatemode=0:forceaudio:adevice=/dev/dsp1

I see you have two audio devices so also try with ...:adevice=/dev/dsp2

Also run alsamixer and make sure "DVC 100" (if it exists) is unmuted and
turned up while testing.

I see the AC97 audio in there. Maybe that's where the trouble is, isn't
that a Windows driver?

AC97 is a standard for sound so that is OK.

Progress!

I can now get video and sound, although the volume is low, but it is there.
Your command line worked, using /dsp2 crashed it, /dsp1 is fine.
The Alsamixer gives me control using PCM, if I run the 'alsamixer -c 1'
command I just get a three-line header with little info.
The mplayer just quit, and won't restart, so I'll reboot and let it run
undisturbed for a while.
But we have Progress!
More later. Thanks to all.

The first time, the picture was good and stable, and in colour. The second
time after reboot, it's really unstable, and it quit after a couple of
minutes, and after it crashed, it keeps repeating:
'Error reading audio, No such device.'
Back to the drawing board.

The terminal showed:

"david@david-laptop:~$ mplayer tv:// -tv
driver=v4l2:norm=NTSC:device=/dev/video0:audiorate=48000:immediatemode=0:forceaudio:adevice=/dev/dsp1
MPlayer 1.0rc2-4.3.3 (C) 2000-2007 MPlayer Team
CPU: Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz (Family: 15, Model: 2,
Stepping: 9)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote
control.

Playing tv://.
TV file format detected.
Selected driver: v4l2
name: Video 4 Linux 2 input
author: Martin Olschewski <olschewski@xxxxxxxxxxxxxxxx>
comment: first try, more to come ;-)
Selected device: Pinnacle Dazzle DVC 90/DVC 100
Capabilites: video capture audio read/write streaming
supported norms: 0 = NTSC; 1 = NTSC-M; 2 = NTSC-M-JP; 3 = NTSC-M-KR; 4 =
NTSC-443; 5 = PAL; 6 = PAL-BG; 7 = PAL-H; 8 = PAL-I; 9 = PAL-DK; 10 =
PAL-M; 11 = PAL-N; 12 = PAL-Nc; 13 = PAL-60; 14 = SECAM; 15 = SECAM-B; 16 =
SECAM-G; 17 = SECAM-H; 18 = SECAM-DK; 19 = SECAM-L; 20 = SECAM-Lc;
inputs: 0 = Composite1; 1 = S-Video;
Current input: 0
Current format: YUYV
Selected input hasn't got a tuner!
xscreensaver_disable: Could not find XScreenSaver window.
GNOME screensaver disabled
==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 640 x 480 (preferred colorspace: Packed YUY2)
VDec: using Packed YUY2 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [xv] 640x480 => 640x480 Packed YUY2
Selected video codec: [rawyuy2] vfm: raw (RAW YUY2)
==========================================================================
==========================================================================
Forced audio codec: mad
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 48000 Hz, 2 ch, s16le, 1536.0 kbit/100.00% (ratio: 192000->192000)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
AO: [pulse] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
No bind found for key 'MOUSE_BTN0'. 0.2% 0 0
No bind found for key 'MOUSE_BTN0'. 0.2% 1 0 "
------------------------------------
And relaunching it from a fresh terminal gave:

"david@david-laptop:~$ mplayer tv:// -tv
driver=v4l2:norm=NTSC:device=/dev/video0:audiorate=48000:immediatemode=0:forceaudio:adevice=/dev/dsp1
MPlayer 1.0rc2-4.3.3 (C) 2000-2007 MPlayer Team
CPU: Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz (Family: 15, Model: 2,
Stepping: 9)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote
control.

Playing tv://.
TV file format detected.
Selected driver: v4l2
name: Video 4 Linux 2 input
author: Martin Olschewski <olschewski@xxxxxxxxxxxxxxxx>
comment: first try, more to come ;-)
v4l2: unable to open '/dev/video0': No such file or directory
v4l2: ioctl set mute failed: Bad file descriptor
v4l2: 0 frames successfully processed, 0 frames dropped.


Exiting... (End of file)"
----------------------------------------------------------
Hmm.
--
Davey.
.

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