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alsa-mixer: Add DecibelFix section to the profile set config file format.

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This commit only implements the parser, the decibel fix data is not yet used
for anything.
This commit is contained in:
Tanu Kaskinen 2011-03-11 13:34:24 +02:00
parent 4cd90d9e32
commit 4842077a1e
4 changed files with 297 additions and 14 deletions
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19
src/modules/alsa/alsa-mixer.h
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@ -46,6 +46,7 @@ typedef struct pa_alsa_path pa_alsa_path;
typedef struct pa_alsa_path_set pa_alsa_path_set;
typedef struct pa_alsa_mapping pa_alsa_mapping;
typedef struct pa_alsa_profile pa_alsa_profile;
typedef struct pa_alsa_decibel_fix pa_alsa_decibel_fix;
typedef struct pa_alsa_profile_set pa_alsa_profile_set;
typedef struct pa_alsa_port_data pa_alsa_port_data;
@ -266,9 +267,26 @@ struct pa_alsa_profile {
pa_idxset *output_mappings;
};
struct pa_alsa_decibel_fix {
pa_alsa_profile_set *profile_set;
char *name; /* Alsa volume element name. */
long min_step;
long max_step;
/* An array that maps alsa volume element steps to decibels. The steps can
* be used as indices to this array, after substracting min_step from the
* real value.
*
* The values are actually stored as integers representing millibels,
* because that's the format the alsa API uses. */
long *db_values;
};
struct pa_alsa_profile_set {
pa_hashmap *mappings;
pa_hashmap *profiles;
pa_hashmap *decibel_fixes;
pa_bool_t auto_profiles;
pa_bool_t probed:1;
@ -276,6 +294,7 @@ struct pa_alsa_profile_set {
void pa_alsa_mapping_dump(pa_alsa_mapping *m);
void pa_alsa_profile_dump(pa_alsa_profile *p);
void pa_alsa_decibel_fix_dump(pa_alsa_decibel_fix *db_fix);
pa_alsa_profile_set* pa_alsa_profile_set_new(const char *fname, const pa_channel_map *bonus);
void pa_alsa_profile_set_probe(pa_alsa_profile_set *ps, const char *dev_id, const pa_sample_spec *ss, unsigned default_n_fragments, unsigned default_fragment_size_msec);