Hans Meine wrote:
> Hi,
>
> I am not sure if I am doing something wrong or if there's a bug; for some
> weeks now I have got an external receiver for digital cable TV. I have
> connected this to my IVTV card (PVR-350) via a scart adapter, and when I
> manually use "v4l2-ctl -i 5" to switch to "Composite 3", I can watch TV.
>
> Next, I tried adding a second VideoGroup for freevo. My primary one looks
> like this:
>
> VideoGroup(vdev='/dev/video0',
> adev=None,
> input_type='Tuner 1',
> input_num=0,
> tuner_type='internal',
> tuner_norm='pal',
> tuner_chanlist='europe-west',
> desc='Kabelfernsehen',
> group_type='ivtv'),
>
> Now I have simply copied that and added it as second entry into
> TV_VIDEO_GROUPS:
>
> VideoGroup(vdev='/dev/video0',
> adev=None,
> input_type='Composite 3',
> input_num=5,
> tuner_type='external',
> # tuner_type='internal',
> tuner_norm='pal',
> tuner_chanlist='europe-west',
> desc='Kabel Digital',
> group_type='ivtv'),
VideoGroup(
vdev='/dev/video4',
vvbi='/dev/vbi4',
adev='/dev/video20',
input_type='Composite 1',
input_num=2,
tuner_norm='PAL',
),
TV_CHANNELS = [
('S-Video', u'S-Video', '-1'),
...
]
The video group number in the TV_CHANNELS tells freevo there is no
channel to tune, may be there is a better way to do this (tuner_type =
'none').
>
> I have tried both tuner_type external and internal, and I thought I got it to
> work, but effectively it only works if I manually set the v4l2 input
> beforehand, e.g. using the above command. I can switch to another TV channel
> and Freevo switches to the primary video group, but when I try to switch back
> to the first channel - my TV_CHANNELS looks like this:
>
> TV_CHANNELS = [
> ('AV', 'K.Digital', '', None, 1),
> ('CNI0DC1', 'ARD (NDR)', 'E10'),
> ('CNI0DC2', 'ZDF', 'E8'),
> ...
>
> - so when I switch back, the video group is not effectively changed.
>
> I suspected this could be the case because it is obviously not possible to
> change the input while /dev/video0 is still open (i.e. TV is running) - I
> think this was possible with older IVTV drivers? I am using the ivtv driver
> bundled with the 2.6.28 kernel.
Correct you can't change channels when the input type is different
between channels without closing the device first.
> I tried to find the place where the input is being changed, and I found that
> this is done in ivtv_xine_tv.py by sending a command to xine:
>
> 2009-02-15 14:46:25,623 DEBUG ivtv_xine_tv.py (987): XineControl.SetInput=5
> 2009-02-15 14:46:25,625 DEBUG ivtv_xine_tv.py (927): XineApp.write
> = 'PVRSetInput#5\n'
> 2009-02-15 14:46:25,626 DEBUG childapp.py (167):
> ChildApp.write(line='PVRSetInput#5') to
> pid 7081
>
> Another thing I wondered about: I get "Cannot find tuner channel "" in the TV
> channel listing" in the logs, although I specified tuner_type to "external":
>
> 2009-02-15 14:42:04,804 INFO ivtv_xine_tv.py (783): TunerControl: Set
> VideoGroup: <ivtv: /dev/video0 5:'composite 3' 'PAL'>
> 2009-02-15 14:42:04,994 WARNING v4l2.py (768): control "Audio Encoding
> Layer"
> does not exist
> 2009-02-15 14:42:04,997 WARNING v4l2.py (768): control "Audio Encoding
> Layer"
> does not exist
> 2009-02-15 14:42:04,999 WARNING v4l2.py (768): control "Audio Encoding
> Layer"
> does not exist
> 2009-02-15 14:42:05,001 WARNING v4l2.py (781): control "Audio Encoding
> Layer"
> does not exist
> 2009-02-15 14:42:05,026 WARNING channels.py (157): Cannot find tuner
> channel "" in the TV channel listing
The "Audio Encoding Layer" has been removed from the ivtv driver, so you
can safely ignore these warning.
I think that the above TV_CHANNELS solution will work but you may have
to add all your channels to the TV_CHANNELS list. Possibly not a bad
thing to do with an external tuner as you may be able to use a program
to tune the digital tuner box.
Duncan
------------------------------------------------------------------------------
Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
-OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
-Strategies to boost innovation and cut costs with open source participation
-Receive a $600 discount off the registration fee with the source code: SFAD
http://p.sf.net/sfu/XcvMzF8H
_______________________________________________
Freevo-devel mailing list
Freevo-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freevo-devel
