Well to make a very long story short. My problem was not interference
with xine, not em interference inside the case, but a problem with ivtv
driver 0.7.0.
It was hard to debug because the problem only appeared after many hours
of recording. Now I have upgraded to driver version 0.7.1 and applied
this patch to ivtv-streams.c
@@ -789,6 +789,9 @@
IVTV_DEBUG_INFO(Disabling digitizer\n);
itv-card-video_dec_func(itv, VIDIOC_STREAMOFF, dummy);
+ /* give PVR150/500 cards 50ms to shut down the decoder stream */
+ ivtv_sleep_timeout(HZ / 20, 0);
+
/* initialize or refresh input */
if (atomic_read(itv-capturing) == 0)
ivtv_vapi(itv, IVTV_API_INITIALIZE_INPUT, 0);
to address the audio problem.
I have been recording for many hours with both my TV cards and have not
seen a single glitch. So the problem seems to have been solved.
maybe this helps others as well.
Paul Sijben wrote:
I am having some problems with my PVR-150 when I am recording a TV show
at the same time as playing another one. The recording has strange spots
in it, that I attribute to data loss in the mpeg stream. I do not have
it when I am not simultaneously playing a recording.
The strange thing is that I do not have this with my PVR-350, also using
the ivtv driver.
I can believe that xine playing an mpeg stream (on a unichrome system
with xxmc driver) will take sufficient CPU power to make a python thread
not be very prompt. However, losing data like that should happen in the
same way on a 350 too. Or does the 150 have much less buffer capacity?
Or am I missing something else here?
Paul
--
Paul Sijben mailto:[EMAIL PROTECTED]
Amersfoort, NL http://www.sijben.net
tel:+31 334557522 fax:+31 33 4557523
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