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don't enabled tsched on software ALSA devices

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This commit is contained in:
Lennart Poettering 2009-03-30 18:00:23 +02:00
parent 3813034cef
commit e3f15104cf
4 changed files with 26 additions and 1 deletions
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5
src/modules/alsa/alsa-sink.c
View file

@ -1630,6 +1630,11 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
u->use_tsched = use_tsched = FALSE; u->use_tsched = use_tsched = FALSE;
} }
if (use_tsched && !pa_alsa_pcm_is_hw(u->pcm_handle)) {
pa_log_info("Device is not a hardware device, disabling timer-based scheduling.");
u->use_tsched = use_tsched = FALSE;
}
if (u->use_mmap) if (u->use_mmap)
pa_log_info("Successfully enabled mmap() mode."); pa_log_info("Successfully enabled mmap() mode.");

5
src/modules/alsa/alsa-source.c
View file

@ -1482,6 +1482,11 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
u->use_tsched = use_tsched = FALSE; u->use_tsched = use_tsched = FALSE;
} }
if (use_tsched && !pa_alsa_pcm_is_hw(u->pcm_handle)) {
pa_log_info("Device is not a hardware device, disabling timer-based scheduling.");
u->use_tsched = use_tsched = FALSE;
}
if (u->use_mmap) if (u->use_mmap)
pa_log_info("Successfully enabled mmap() mode."); pa_log_info("Successfully enabled mmap() mode.");

15
src/modules/alsa/alsa-util.c
View file

@ -1716,10 +1716,11 @@ char *pa_alsa_get_driver_name(int card) {
char *pa_alsa_get_driver_name_by_pcm(snd_pcm_t *pcm) { char *pa_alsa_get_driver_name_by_pcm(snd_pcm_t *pcm) {
int card; int card;
snd_pcm_info_t* info; snd_pcm_info_t* info;
snd_pcm_info_alloca(&info); snd_pcm_info_alloca(&info);
pa_assert(pcm);
if (snd_pcm_info(pcm, info) < 0) if (snd_pcm_info(pcm, info) < 0)
return NULL; return NULL;
@ -1749,3 +1750,15 @@ char *pa_alsa_get_reserve_name(const char *device) {
return pa_sprintf_malloc("Audio%i", i); return pa_sprintf_malloc("Audio%i", i);
} }
pa_bool_t pa_alsa_pcm_is_hw(snd_pcm_t *pcm) {
snd_pcm_info_t* info;
snd_pcm_info_alloca(&info);
pa_assert(pcm);
if (snd_pcm_info(pcm, info) < 0)
return FALSE;
return snd_pcm_info_get_card(info) >= 0;
}

2
src/modules/alsa/alsa-util.h
View file

@ -139,4 +139,6 @@ char *pa_alsa_get_driver_name_by_pcm(snd_pcm_t *pcm);
char *pa_alsa_get_reserve_name(const char *device); char *pa_alsa_get_reserve_name(const char *device);
pa_bool_t pa_alsa_pcm_is_hw(snd_pcm_t *pcm);
#endif #endif