On Wednesday 03 June 2009, Lucian Muresan wrote:
> Lucian Muresan wrote:
>
> [...]
> >>> No, unfortunately none of those "ac3play" messages are written, really
> >>> strange...
> >>
> >> So everything looks ok, but there is no sound :-( .
> >> There are 2 additional code paths (4 choices in total):
> >>
> >> 1. Switching to professional transmission:
> >> setting 'ac3SpdifPro = true' in audio-alsa.c, line 41.
> >> 2. Different open for AC3 with patch from Roland Praml found here:
> >> http://www.vdr-portal.de/board/thread.php?postid=506499#post506499
> >> Patch includes enforcing of spdifpro mode.
> >>
> >> If you need help, please ask again.
> >
> > Thanks for the two hints, will try the other 3 remaining code paths
> > tonight and report back.
>
> Unfortunately, no luck with 'ac3SpdifPro = true', and that version of Roland
> Praml's patch semms to be pretty old, it does no longer apply to current
> softdevice. Do you have a newer one, by chance ;-) ?
Here is one, I did only a compile test.
--
Stefan Lucke
Index: audio-ac3pt.c
===================================================================
RCS file: /cvsroot/softdevice/softdevice/audio-ac3pt.c,v
retrieving revision 1.3
diff -U3 -r1.3 audio-ac3pt.c
--- audio-ac3pt.c 25 Dec 2007 13:21:46 -0000 1.3
+++ audio-ac3pt.c 4 Jun 2009 19:11:53 -0000
@@ -500,6 +500,7 @@
unsigned int
cAlsaAC3pt::SpdifInitAC3(snd_pcm_t **handle, char *device, bool spdifPro)
{
+ char pcm_name[256];
static snd_aes_iec958_t spdif;
unsigned int rate = 48000;
snd_pcm_info_t *info;
@@ -509,22 +510,12 @@
unsigned int channels = 2;
int err;//, c;
- if ((err = snd_pcm_open(handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0)
- {
- fprintf(stderr, "ac3play: sound open: %s\n", snd_strerror(err));
- return 1;
- }
-
if (ac3Status)
snd_pcm_status_free(ac3Status);
+ ac3Status = NULL;
snd_pcm_info_alloca(&info);
- if ((err = snd_pcm_info(*handle, info)) < 0) {
- fprintf(stderr, "ac3play: sound info: %s\n", snd_strerror(err));
- snd_pcm_close(*handle);
- return 1;
- }
{
snd_ctl_elem_value_t *ctl;
snd_ctl_t *ctl_handle;
@@ -551,6 +542,31 @@
spdif.status[3] = (iec958_aes3_con_fs_rate);
}
+
+ snprintf(pcm_name, sizeof (pcm_name),
+ "iec958:AES0=0x%.2x,AES1=0x%.2x,AES2=0x%.2x,AES3=0x%.2x,CARD=%1d",
+ spdif. status [0], spdif. status [1],
+ spdif. status [2], spdif. status [3],
+ 0);
+
+ err = snd_pcm_open (handle, pcm_name, SND_PCM_STREAM_PLAYBACK, 0);
+ if (err >= 0) {
+ fprintf(stderr, "ac3play: Sucessfull opend (%s)\n", pcm_name);
+ goto __diga_end;
+ }
+
+ fprintf(stderr, "ac3play: Failed to open (%s) trying old way\n", pcm_name);
+ if ((err = snd_pcm_open(handle, device, SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
+ fprintf(stderr, "ac3play: sound open: %s\n", snd_strerror(err));
+ return 1;
+ }
+
+ if ((err = snd_pcm_info(*handle, info)) < 0) {
+ fprintf(stderr, "ac3play: sound info: %s\n", snd_strerror(err));
+ snd_pcm_close(*handle);
+ return 1;
+ }
+
snd_ctl_elem_value_alloca(&ctl);
snd_ctl_elem_value_set_interface(ctl, SND_CTL_ELEM_IFACE_PCM);
snd_ctl_elem_value_set_device(ctl, snd_pcm_info_get_device(info));
@@ -572,9 +588,9 @@
goto __diga_end;
}
snd_ctl_close(ctl_handle);
- __diga_end:
- ;
}
+ __diga_end:
+ ;
{
snd_pcm_hw_params_t *params;
snd_pcm_sw_params_t *swparams;
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