[mythtv-users] Fuzzy sound, other recording issues.

Robin Gilks g8ecj at gilks.org
Wed Sep 27 22:03:02 UTC 2006

> Robin Gilks <g8ecj at gilks.org> wrote:
> Check out the ivtv list for the fuzzy audio problem.
> http://www.gossamer-threads.com/lists/ivtv/devel/32103
> resolution problems? dunno!
> --
> Robin Gilks
> Robin,
> Thanks for the quick reply--
> The resolution problems are fixed (just needed to poke around in mythtv
> setup).  As for the fuzzy audio problems, I haven't got a clue how to
> apply the patch posted in that thread...as usual if you just want to point
> me at the right docs, I'd be happy to just read up on it...

The latest patch is much simpler (as below).
--- ivtv-streams.c	2006-09-25 10:34:59.000000000 +0200
+++ i.c	2006-09-25 10:37:12.000000000 +0200
@@ -787,7 +787,7 @@

         /* Disable digitizer */
         IVTV_DEBUG_INFO("Disabling digitizer\n");
-	itv->card->video_dec_func(itv, VIDIOC_STREAMOFF, &dummy);
+//	itv->card->video_dec_func(itv, VIDIOC_STREAMOFF, &dummy);

         /* initialize or refresh input */
         if (atomic_read(&itv->capturing) == 0)
@@ -797,7 +797,7 @@

         /* enable digitizer (saa7115) */
         IVTV_DEBUG_INFO("Enabling digitizer\n");
-	itv->card->video_dec_func(itv, VIDIOC_STREAMON, &dummy);
+//	itv->card->video_dec_func(itv, VIDIOC_STREAMON, &dummy);

 	return 0;

What this is doing is just commenting out 2 lines in the ivtv-streams.c
file. Rather than learning how to use the 'patch' program, just download
the ivtv source, unpack according to the howto instructions at
and use your favourite editor to put the '//' in front of the line lines.
Then continue with the installation according to the ivtv howto.

Note that to do this from source requires the kernel headers or -dev
package (I'm using Gentoo so everything comes in source form!!)

Robin Gilks

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