saa7134 composite issue
- From: PÃdraig Brady <padraig (at) lincor.com>
- Date: Fri, 12 May 2006 16:41:14 +0100
Hi,
I'm trying to capture using VLC from the composite input of:
saa7130/34: v4l2 driver version 0.2.14 loaded
saa7133[0]: found at 0000:00:08.0, rev: 240, irq: 10, latency: 32, mmio:
0xee000000
saa7133[0]: subsystem: 1131:0000, board: ProVideo PV-970 Mini
[card=64,autodetected]
saa7133[0]: board init: gpio is 0
saa7133[0]: dsp access wait timeout [bit=WRR]
: chip found (at) 0x96 (saa7133[0])
tuner 0-004b: tuner: type set to tda8290+75
saa7133[0]: Huh, no eeprom present (err=-5)?
saa7133[0]: registered device video0 [v4l2]
saa7133[0]: registered device vbi0
saa7133[0]: registered device dsp1
saa7133[0]: registered device mixer1
The source is an external PAL TV tuner, and it works fine
once I'm just displaying TV. However once I activate the
external tuner's On Screen Display (by changing channel, or volume etc.)
the VLC window will just go blank, and will stay blank even
when the unit switches back to TV output.
Now VLC is still is reading data as "normal" from /dev/video0,
which suggests it's a problem in the driver or hardware?
Checking on a LCD TV I have, shows that the tuner shows a blue screen,
with white text for it's OSD. Could this be a different resolution or
something that's causing the issue?
Note reconnecting the composite line to the card does
not get VLC/saa7134 out of this state, but note,
power cycling the external tuner does (usually).
Note also that sometimes VLC/saa7134 are able to capture a
few frames of the OSD before hanging up.
The VLC command used is:
vlc -vvv v4l:/dev/video0:size=720x576:norm=pal:channel=2
modprobe saa7134 video_debug=1 core_debug=1
didn't should anything interesting, to my eyes at least.
Any ideas welcome.
thanks,
PÃdraig.
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