[linux-dvb] cx88-blackbird

Duncan Thomas lists at goldtel.com.au
Wed Nov 29 08:57:25 CET 2006


>You need to have the mpeg encoder set up in mythtv as a v4l2 mpeg encoder.
>I have been told that mythtv has already been updated to use the v4l2
>mpeg encoding api -- it SHOULD work fine.

>About the sound...  Can you tell me which inputs have sound and which do
>not?
>(TV, radio, composite) ... I know what's wrong with the sound input, and I
>can
>send you a patch to test.

>For instance, this should fix sound for TV, but I need you to verify that
>it
>works before I have it added to the repository:

>--- cx88.orig/linux/drivers/media/video/cx88/cx88-cards.c
>+++ cx88/linux/drivers/media/video/cx88/cx88-cards.c
>@@ -1341,7 +1341,6 @@
>
>			.vmux   = 0,
> 			.gpio0	= 0xe780,
>			.extadc = 1,
> 		},{
> 			.type	= CX88_VMUX_COMPOSITE1,
> 			.vmux	= 1,
>
>...if sound is broken on the other inputs, then also remove that ".extadc =
>1"
>from that input line and give it a test.  Please let me know what happens.

>Cheers,
>Mike

> No worries - I shall check it out tomorrow arvo after work.

Ok - I hand edited cx88-cards.c (bit of a newbie - could someone give me a
quick example of the command to correctly patch in this case) - did a make
distclean and rebuilt the modules. I still get no audio but a perfectly good
picture. I am testing using mplayer - mplayer /dev/video2 -vo xv -ao ALSA

Then I tried v4l2-ctrl -i1 and tested in the same way. No audio on the
composite input either - picture works fine.









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