Hi.
After some diffing I've finally managed to get rid of "audio clicking"
problem which could be heard when using analog tv or composite input
of my HVR-900. Additionally, after Mauro's suggestion, I found it
necessary to change the audio amux value for composite input from 1 to
3.
Patch against linux-dvb hg repo attached. I hope it's trivial enough
to be applied quickly. I've been using my tuner for three days without
any sound issues so far.
Cheers,
W.
--
Talkers are no good doers.
http://greblus.net/djangoblog/
diff -ur v4l-dvb-old/linux/drivers/media/video/em28xx/em28xx-audio.c v4l-dvb-new/linux/drivers/media/video/em28xx/em28xx-audio.c
--- v4l-dvb-old/linux/drivers/media/video/em28xx/em28xx-audio.c 2008-09-21 21:26:04.000000000 +0200
+++ v4l-dvb-new/linux/drivers/media/video/em28xx/em28xx-audio.c 2008-09-21 21:26:24.000000000 +0200
@@ -127,10 +127,10 @@
if (oldptr + length >= runtime->buffer_size) {
unsigned int cnt =
- runtime->buffer_size - oldptr - 1;
+ runtime->buffer_size - oldptr;
memcpy(runtime->dma_area + oldptr * stride, cp,
cnt * stride);
- memcpy(runtime->dma_area, cp + cnt,
+ memcpy(runtime->dma_area, cp + cnt * stride,
length * stride - cnt * stride);
} else {
memcpy(runtime->dma_area + oldptr * stride, cp,
diff -ur v4l-dvb-old/linux/drivers/media/video/em28xx/em28xx-cards.c v4l-dvb-new/linux/drivers/media/video/em28xx/em28xx-cards.c
--- v4l-dvb-old/linux/drivers/media/video/em28xx/em28xx-cards.c 2008-09-21 21:26:04.000000000 +0200
+++ v4l-dvb-new/linux/drivers/media/video/em28xx/em28xx-cards.c 2008-09-21 21:26:31.000000000 +0200
@@ -578,7 +578,7 @@
}, {
.type = EM28XX_VMUX_COMPOSITE1,
.vmux = TVP5150_COMPOSITE1,
- .amux = 1,
+ .amux = 3,
}, {
.type = EM28XX_VMUX_SVIDEO,
.vmux = TVP5150_SVIDEO,
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