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alsa-util: Perform format and rate detection before setting HW params

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Perform detection of supported sample format and rates just after device is
opened, before `snd_pcm_hw_params()` is called for the first time. This fixes a
problem where device restricts available sample rates after HW params are set
preventing sample rate detection (seen with UAC2 devices and kernel 6.1.9)
This commit is contained in:
Wim Taymans 2023-03-20 18:22:09 +01:00
parent 43770c533c
commit 96ed03e1fc
6 changed files with 69 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

27
spa/plugins/alsa/acp/alsa-util.c
View file

@ -505,6 +505,8 @@ snd_pcm_t *pa_alsa_open_by_device_id_auto(
snd_pcm_uframes_t tsched_size,
bool *use_mmap,
bool *use_tsched,
pa_sample_format_t **query_supported_formats,
unsigned int **query_supported_rates,
pa_alsa_profile_set *ps,
pa_alsa_mapping **mapping) {
@ -543,6 +545,8 @@ snd_pcm_t *pa_alsa_open_by_device_id_auto(
tsched_size,
use_mmap,
use_tsched,
query_supported_formats,
query_supported_rates,
m);
if (pcm_handle) {
@ -570,6 +574,8 @@ snd_pcm_t *pa_alsa_open_by_device_id_auto(
tsched_size,
use_mmap,
use_tsched,
query_supported_formats,
query_supported_rates,
m);
if (pcm_handle) {
@ -594,6 +600,8 @@ snd_pcm_t *pa_alsa_open_by_device_id_auto(
tsched_size,
use_mmap,
use_tsched,
query_supported_formats,
query_supported_rates,
false);
pa_xfree(d);
@ -615,6 +623,8 @@ snd_pcm_t *pa_alsa_open_by_device_id_mapping(
snd_pcm_uframes_t tsched_size,
bool *use_mmap,
bool *use_tsched,
pa_sample_format_t **query_supported_formats,
unsigned int **query_supported_rates,
pa_alsa_mapping *m) {
snd_pcm_t *pcm_handle;
@ -644,6 +654,8 @@ snd_pcm_t *pa_alsa_open_by_device_id_mapping(
tsched_size,
use_mmap,
use_tsched,
query_supported_formats,
query_supported_rates,
pa_channel_map_valid(&m->channel_map) /* Query the channel count if we don't know what we want */);
if (!pcm_handle)
@ -681,6 +693,8 @@ snd_pcm_t *pa_alsa_open_by_device_string(
snd_pcm_uframes_t tsched_size,
bool *use_mmap,
bool *use_tsched,
pa_sample_format_t **query_supported_formats,
unsigned int **query_supported_rates,
bool require_exact_channel_number) {
int err;
@ -708,6 +722,12 @@ snd_pcm_t *pa_alsa_open_by_device_string(
pa_log_info("ALSA device open '%s' %s: %p", d,
mode == SND_PCM_STREAM_CAPTURE ? "capture" : "playback", pcm_handle);
if (query_supported_formats)
*query_supported_formats = pa_alsa_get_supported_formats(pcm_handle, ss->format);
if (query_supported_rates)
*query_supported_rates = pa_alsa_get_supported_rates(pcm_handle, ss->rate);
if ((err = pa_alsa_set_hw_params(
pcm_handle,
ss,
@ -781,6 +801,8 @@ snd_pcm_t *pa_alsa_open_by_template(
snd_pcm_uframes_t tsched_size,
bool *use_mmap,
bool *use_tsched,
pa_sample_format_t **query_supported_formats,
unsigned int **query_supported_rates,
bool require_exact_channel_number) {
snd_pcm_t *pcm_handle;
@ -802,6 +824,8 @@ snd_pcm_t *pa_alsa_open_by_template(
tsched_size,
use_mmap,
use_tsched,
query_supported_formats,
query_supported_rates,
require_exact_channel_number);
pa_xfree(d);
@ -1411,6 +1435,7 @@ char *pa_alsa_get_reserve_name(const char *device) {
return pa_sprintf_malloc("Audio%i", i);
}
#endif
static void dump_supported_rates(unsigned int* values)
{
@ -1478,6 +1503,7 @@ unsigned int *pa_alsa_get_supported_rates(snd_pcm_t *pcm, unsigned int fallback_
rates[1] = 0;
}
dump_supported_rates(rates);
return rates;
}
@ -1558,7 +1584,6 @@ pa_sample_format_t *pa_alsa_get_supported_formats(snd_pcm_t *pcm, pa_sample_form
return formats;
}
#endif
bool pa_alsa_pcm_is_hw(snd_pcm_t *pcm) {
snd_pcm_info_t* info;