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alsa: add api.alsa.auto-link option

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Add an option to automatically use snd_pcm_link when the follower clock
is matching the driver. Only set this to true in pro-audio and when
nodes are scheduled together.

See #3556
This commit is contained in:
Wim Taymans 2023-10-09 10:10:46 +02:00
parent 0dfa05117b
commit 896fea62c2
3 changed files with 6 additions and 1 deletions
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2
spa/plugins/alsa/acp/acp.c
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@ -390,6 +390,7 @@ static int add_pro_profile(pa_card *impl, uint32_t index)
pa_proplist_setf(m->output_proplist, "device.profile.pro", "true");
pa_proplist_setf(m->output_proplist, "node.group", "pro-audio-%u", index);
pa_proplist_setf(m->output_proplist, "node.link-group", "pro-audio-%u", index);
pa_proplist_set(m->input_proplist, "api.alsa.auto-link", "true");
pa_alsa_close(&m->output_pcm);
m->supported = true;
pa_channel_map_init_auto(&m->channel_map, m->sample_spec.channels, PA_CHANNEL_MAP_AUX);
@ -423,6 +424,7 @@ static int add_pro_profile(pa_card *impl, uint32_t index)
pa_proplist_setf(m->input_proplist, "device.profile.pro", "true");
pa_proplist_setf(m->input_proplist, "node.group", "pro-audio-%u", index);
pa_proplist_setf(m->input_proplist, "node.link-group", "pro-audio-%u", index);
pa_proplist_set(m->input_proplist, "api.alsa.auto-link", "true");
pa_alsa_close(&m->input_pcm);
m->supported = true;
pa_channel_map_init_auto(&m->channel_map, m->sample_spec.channels, PA_CHANNEL_MAP_AUX);