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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
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2
spa/plugins/alsa/acp/alsa-mixer.c
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@ -5012,7 +5012,7 @@ static snd_pcm_t* mapping_open_pcm(pa_alsa_mapping *m,
handle = pa_alsa_open_by_template(
m->device_strings, dev_id, NULL, &try_ss,
&try_map, mode, &try_period_size,
&try_buffer_size, 0, NULL, NULL, exact_channels);
&try_buffer_size, 0, NULL, NULL, NULL, NULL, exact_channels);
if (handle && !exact_channels && m->channel_map.channels != try_map.channels) {
char buf[PA_CHANNEL_MAP_SNPRINT_MAX];
pa_log_debug("Channel map for mapping '%s' permanently changed to '%s'", m->name,