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fall back to plughw: if hw: doesn't work

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1844 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-09-17 17:00:50 +00:00
parent 26a1ae7bbb
commit 1ae473bd1b
1 changed files with 40 additions and 18 deletions
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58
src/modules/module-alsa-sink.c
View file

@ -678,7 +678,7 @@ int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
struct userdata *u = NULL;
const char *dev;
char *dev;
pa_sample_spec ss;
pa_channel_map map;
uint32_t nfrags, frag_size;
@ -737,24 +737,39 @@ int pa__init(pa_module*m) {
pa_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq);
snd_config_update_free_global();
if ((err = snd_pcm_open(&u->pcm_handle, dev = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK)) < 0) {
pa_log("Error opening PCM device %s: %s", dev, snd_strerror(err));
goto fail;
dev = pa_xstrdup(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE));
for (;;) {
if ((err = snd_pcm_open(&u->pcm_handle, dev, SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK)) < 0) {
pa_log("Error opening PCM device %s: %s", dev, snd_strerror(err));
pa_xfree(dev);
goto fail;
}
b = use_mmap;
if ((err = pa_alsa_set_hw_params(u->pcm_handle, &ss, &nfrags, &period_size, &b)) < 0) {
if (err == -EPERM) {
/* Hmm, some hw is very exotic, so we retry with plughw, if hw didn't work */
if (pa_startswith(dev, "hw:")) {
char *d = pa_sprintf_malloc("plughw:%s", dev+3);
pa_xfree(dev);
dev = d;
continue;
}
}
pa_log("Failed to set hardware parameters: %s", snd_strerror(err));
pa_xfree(dev);
goto fail;
}
break;
}
u->device_name = pa_xstrdup(dev);
if ((err = snd_pcm_info(u->pcm_handle, pcm_info)) < 0) {
pa_log("Error fetching PCM info: %s", snd_strerror(err));
goto fail;
}
b = use_mmap;
if ((err = pa_alsa_set_hw_params(u->pcm_handle, &ss, &nfrags, &period_size, &b)) < 0) {
pa_log("Failed to set hardware parameters: %s", snd_strerror(err));
goto fail;
}
if (use_mmap && !b) {
pa_log_info("Device doesn't support mmap(), falling back to UNIX read/write mode.");
u->use_mmap = use_mmap = b;
@ -763,6 +778,13 @@ int pa__init(pa_module*m) {
if (u->use_mmap)
pa_log_info("Successfully enabled mmap() mode.");
if ((err = snd_pcm_info(u->pcm_handle, pcm_info)) < 0) {
pa_log("Error fetching PCM info: %s", snd_strerror(err));
goto fail;
}
u->device_name = dev;
if ((err = pa_alsa_set_sw_params(u->pcm_handle)) < 0) {
pa_log("Failed to set software parameters: %s", snd_strerror(err));
goto fail;