Videograbber Bestek Model 8701, usb-id: eb1a:2863

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Videograbber Bestek Model 8701, usb-id: eb1a:2863

Postby kaefert on Sat Jun 09, 2012 12:05 pm

Since I have the need to record a video signal, I dug out my old videograbber, and tried to plug it into my notebook.

Here's the dmesg output:
Code: Select all
[29700.104079] usb 2-1: new high-speed USB device number 14 using ehci_hcd
[29700.236518] usb 2-1: New USB device found, idVendor=eb1a, idProduct=2863
[29700.236529] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[29700.238028] em28xx: New device @ 480 Mbps (eb1a:2863, interface 0, class 0)
[29700.238036] em28xx: Audio Vendor Class interface 0 found
[29700.238205] em28xx #0: chip ID is em2860
[29700.328571] em28xx #0: board has no eeprom
[29700.433582] em28xx #0: found i2c device @ 0xb8 [tvp5150a]
[29700.445831] em28xx #0: Your board has no unique USB ID.
[29700.445835] em28xx #0: A hint were successfully done, based on i2c devicelist hash.
[29700.445837] em28xx #0: This method is not 100% failproof.
[29700.445839] em28xx #0: If the board were missdetected, please email this log to:
[29700.445841] em28xx #0: V4L Mailing List <>
[29700.445843] em28xx #0: Board detected as EM2860/TVP5150 Reference Design
[29700.524044] em28xx #0: Identified as EM2860/TVP5150 Reference Design (card=29)
[29700.544046] tvp5150 3-005c: chip found @ 0xb8 (em28xx #0)
[29700.664523] tvp5150 3-005c: tvp5150am1 detected.
[29700.724731] em28xx #0: Config register raw data: 0x10
[29700.748256] em28xx #0: AC97 vendor ID = 0x83847650
[29700.760235] em28xx #0: AC97 features = 0x6a90
[29700.760242] em28xx #0: Sigmatel audio processor detected(stac 9750)
[29703.412239] em28xx #0: v4l2 driver version 0.1.3
[29704.420177] em28xx #0: V4L2 video device registered as video1
[29704.420180] em28xx #0: V4L2 VBI device registered as vbi0
[29704.420185] em28xx-audio.c: probing for em28xx Audio Vendor Class
[29704.420187] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
[29704.420189] em28xx-audio.c: Copyright (C) 2007-2011 Mauro Carvalho Chehab

For testing purposes I used the video output signal of my Wii (PAL). I found the following options for displaying the Wii video signal with VLC:

having the correct colors, but a picture that has been cut in half and the top beeing displayed on the bottom:
Code: Select all
cvlc v4l2:///dev/video1 :v4l2-standard=PAL :v4l2-width=788 :v4l2-height=576 :v4l2-fps=29.97 :v4l2-aspect-ratio=4\:3

having the picture not cut in half, but with wrong colors:
Code: Select all
cvlc v4l2:///dev/video1 :v4l2-standard=PAL_60 :v4l2-width=788 :v4l2-height=576 :v4l2-fps=29.97 :v4l2-aspect-ratio=4\:3 :v4l2-use-libv4l2 :v4l2-controls-reset :v4l2-brightness-auto=1 :v4l2-hue-auto=1 :v4l2-auto-white-balance=1 :v4l2-autogain=1

As you can imagine, both options are not really satisfying..

The next problem is the audio.

In the dropdown boxes auf audacity I found this "Em28xx Audio: Empia 28xx Capture (hw:1,0)" This sounds like the sound stream I am searching for, but it only gives me silence. also using hw:1,0 inside VLC only gives me silence. hw:0,0 gives me the internal microphone of my notebook..

So what I'm searching for is a way to get the correct video and if possible also the audio stream from my videograbber to play on my notebook, and or recording them to a file.

ps.: I also posted my problem in the vlc forum here: ... 49#p343149

And I described my attempts here and uploaded two pictures of the vlc results here: ... -eb1a2863/
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