diff options
| author | Takashi Iwai <tiwai@suse.de> | 2012-07-25 15:05:15 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-09-11 11:34:50 +0200 |
| commit | 3c4a22ea49a881cdbfe2d50eef94b17e38104734 (patch) | |
| tree | 6c7faa47907ac3e2d166734e33364cdab93218c4 /include/pcm.h | |
| parent | 1ef1c5cdb4301898499c0391cdfac2117c7d4684 (diff) | |
Implement the channel mapping API
Added new channel-mapping API functions.
Not all plugins are covered, especially the route, multi and external
plugins don't work yet.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/pcm.h')
| -rw-r--r-- | include/pcm.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/pcm.h b/include/pcm.h index 49975570..c47717b8 100644 --- a/include/pcm.h +++ b/include/pcm.h @@ -474,6 +474,18 @@ int snd_pcm_wait(snd_pcm_t *pcm, int timeout); int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2); int snd_pcm_unlink(snd_pcm_t *pcm); +enum { + SND_CHMAP_NONE = 0, /** unspecified channel position */ + SND_CHMAP_FIXED, /** fixed channel position */ + SND_CHMAP_VAR, /** freely swappable channel position */ + SND_CHMAP_PAIRED, /** pair-wise swappable channel position */ +}; + +int **snd_pcm_query_chmaps(snd_pcm_t *pcm); +void snd_pcm_free_chmaps(int **maps); +int *snd_pcm_get_chmap(snd_pcm_t *pcm); +int snd_pcm_set_chmap(snd_pcm_t *pcm, const int *map); + //int snd_pcm_mixer_element(snd_pcm_t *pcm, snd_mixer_t *mixer, snd_mixer_elem_t **elem); /* |