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ao_alsa: hack against potential spdif failure

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This commit is contained in:
wm4 2015-06-04 13:10:33 +02:00
parent 73401f92ec
commit c277c17a93
1 changed files with 16 additions and 3 deletions
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19
audio/out/ao_alsa.c
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@ -387,8 +387,23 @@ static int try_open_device(struct ao *ao, const char *device)
MP_VERBOSE(ao, "opening device '%s' => '%s'\n", device, ac3_device);
int err = snd_pcm_open
(&p->alsa, ac3_device, SND_PCM_STREAM_PLAYBACK, 0);
if (err < 0) {
// Some spdif-capable devices do not accept the AES0 parameter,
// and instead require the iec958 pseudo-device (they will play
// noise otherwise). Unfortunately, ALSA gives us no way to map
// these devices, so try it for the default device only.
bstr dev;
bstr_split_tok(bstr0(device), ":", &dev, &(bstr){0});
if (bstr_equals0(dev, "default")) {
ac3_device = append_params(tmp, "iec958", params);
MP_VERBOSE(ao, "got error %d; opening iec fallback device '%s'\n",
err, ac3_device);
err = snd_pcm_open
(&p->alsa, ac3_device, SND_PCM_STREAM_PLAYBACK, 0);
}
}
talloc_free(tmp);
if (!err)
if (err >= 0)
return 0;
}
@ -419,8 +434,6 @@ static int init_device(struct ao *ao, bool second_try)
int err;
const char *device = "default";
if (AF_FORMAT_IS_IEC61937(ao->format))
device = "iec958";
if (ao->device)
device = ao->device;
if (p->cfg_device && p->cfg_device[0])