On Fri, Oct 24, 2008 at 11:48 AM, Takashi Iwai tiwai@suse.de wrote:
At Fri, 24 Oct 2008 09:32:43 +0200, Nir Tzachar wrote:
On Fri, Oct 24, 2008 at 9:27 AM, Takashi Iwai tiwai@suse.de wrote:
At Thu, 23 Oct 2008 22:08:15 +0200, Nir Tzachar wrote:
On Thu, Oct 23, 2008 at 11:31 PM, Takashi Iwai tiwai@suse.de wrote:
At Thu, 23 Oct 2008 20:34:30 +0200, Nir Tzachar wrote:
On Thu, Oct 23, 2008 at 10:04 AM, Takashi Iwai tiwai@suse.de wrote: > At Wed, 22 Oct 2008 19:09:41 +0200, > Nir Tzachar wrote: >> >> On Wed, Oct 22, 2008 at 8:15 AM, Takashi Iwai tiwai@suse.de wrote: >> > At Wed, 22 Oct 2008 06:43:06 +0200, >> > Nir Tzachar wrote: >> >> >> >> On Wed, Oct 22, 2008 at 4:42 AM, Wei Ni wni@nvidia.com wrote: >> >> > Hi, Takshi >> >> > We have no official plan to support this nforce 630i HDMI audio in linux >> >> > now, >> >> > and we didn't do any test on it yet. So we can't provide the official >> >> > patch for this addition. >> >> > >> >> > I think if someone interest in it and do some test, he can generate >> >> > patch and submit it. >> >> >> >> As I am interested, and willing o do the tests, I would be happy to >> >> know which tests are needed. >> > >> > If you can play both audio streams and non-audio streams over the device >> > by some applications, it's basically confirmed to work :) >> >> What do you mean by non-audio stream? > > The passthrough of AC3 stream or so. > >> Can you give specific commands >> which should work? > > I usually test using ac3dec program included in alsa-tools.
Tried ac3decode, and got a perfect sound out. I am using the following asound.conf (if it is relevant):
Well, I guess this won't be a non-audio mode. Try to get the latest alsa-tools git tree. I changed ac3dec and now it has -H option. Specify this together with -C,
% ac3dec -C -H foo.ac3This will be the AC3 passthru testing.
This is the only one that works:
./ac3dec -R --hdmi /tmp/ac3_the_other_side_48khz.ac3 5.1 Mode 48.0 KHz 640 kbps Complete Main Audio Service Using PCM device 'plug:hdmi:{AES0 0x0 AES1 0x82 AES2 0x0 AES3 0x2}'
-P and -C give me a strange mewling..
BTW, -H does not work, only --hdmi.
The patch below should fix the missing -H option.
With the option -R, ac3dec itself decodes the AC3 stream, and send it as PCM. To make your receiver decoding AC3, -C/-P is needed.
Can you show alsa-info.sh output (with --no-upload option)? If you have two "IEC958 Playback Default" controls with index 0 and 1, the latter is likely the one for HDMI.
Try to adjust it manually via iecset program in alsa-utils % iecset -c0 -n1 pro off audio off then run ac3dec % ac3dec -H -C foo.ac3
I don't get any sound (at all, not even regular pcm) after doing this. Maybe my TV is not capable of ac3 input? Is this possible?
thanks,
Takashi
diff --git a/ac3dec/ac3dec.c b/ac3dec/ac3dec.c index c45148c..293a95c 100644 --- a/ac3dec/ac3dec.c +++ b/ac3dec/ac3dec.c @@ -134,7 +134,7 @@ int main(int argc,char *argv[]) while (1) { int c;
if ((c = getopt_long(argc, argv, "hvc:D:46CPRZ:q", long_option, NULL)) < 0)
if ((c = getopt_long(argc, argv, "hvc:D:46HCPRZ:q", long_option, NULL)) < 0) break; switch (c) { case 'h':