From 3c4a22ea49a881cdbfe2d50eef94b17e38104734 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 25 Jul 2012 15:05:15 +0200 Subject: 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 --- include/pcm.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/pcm.h') 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); /* -- cgit v1.2.3