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alsa: Add separate sinks/sources for UCM modifiers if needed

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Modifiers may have their own PlaybackPCM/CapturePCM and for these, we
create separate sinks/sources. These are marked with the
device.intended_roles property to let role-based routing take care if
streams are tagged appropriately.
This commit is contained in:
Arun Raghavan 2012-07-16 15:42:53 +05:30
parent a08c85d299
commit 5c12ce5985
4 changed files with 195 additions and 10 deletions
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7
src/modules/alsa/alsa-ucm.h
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@ -73,6 +73,9 @@
/** For devices: Quality of Service */
#define PA_ALSA_PROP_UCM_QOS "alsa.ucm.qos"
/** For devices: The modifier (if any) that this device corresponds to */
#define PA_ALSA_PROP_UCM_MODIFIER "alsa.ucm.modifier"
typedef struct pa_alsa_ucm_verb pa_alsa_ucm_verb;
typedef struct pa_alsa_ucm_modifier pa_alsa_ucm_modifier;
typedef struct pa_alsa_ucm_device pa_alsa_ucm_device;
@ -140,6 +143,10 @@ struct pa_alsa_ucm_modifier {
pa_direction_t action_direction;
char *media_role;
/* Non-NULL if the modifier has its own PlaybackPCM/CapturePCM */
pa_alsa_mapping *playback_mapping;
pa_alsa_mapping *capture_mapping;
};
struct pa_alsa_ucm_verb {