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authorTakashi Iwai <tiwai@suse.de>2012-09-11 16:24:43 +0400
committerTakashi Iwai <tiwai@suse.de>2012-09-11 16:24:43 +0400
commit2dc6fbf0078e8148b571f1bbec704ca5c8e2ec2c (patch)
tree515fa72ab82691073930202c40a4d112d3de32d8 /sound/core/pcm_lib.c
parent498dab3aa7f8851a880ffe9d8e66516851950c59 (diff)
downloadlinux-2dc6fbf0078e8148b571f1bbec704ca5c8e2ec2c.tar.xz
ALSA: pcm - Use UNKNOWN chmap for mono streams
In general, mono streams have no dedicated speaker assignment, thus they should be rather marked as UNKNOWN position. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/pcm_lib.c')
-rw-r--r--sound/core/pcm_lib.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 0a750ec5c400..9647a22ed69a 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -2311,7 +2311,7 @@ EXPORT_SYMBOL(snd_pcm_lib_readv);
/* default channel maps for multi-channel playbacks, up to 8 channels */
const struct snd_pcm_chmap_elem snd_pcm_std_chmaps[] = {
{ .channels = 1,
- .map = { SNDRV_CHMAP_FC } },
+ .map = { SNDRV_CHMAP_UNKNOWN } },
{ .channels = 2,
.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
{ .channels = 4,
@@ -2333,7 +2333,7 @@ EXPORT_SYMBOL_GPL(snd_pcm_std_chmaps);
/* alternative channel maps with CLFE <-> surround swapped for 6/8 channels */
const struct snd_pcm_chmap_elem snd_pcm_alt_chmaps[] = {
{ .channels = 1,
- .map = { SNDRV_CHMAP_FC } },
+ .map = { SNDRV_CHMAP_UNKNOWN } },
{ .channels = 2,
.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
{ .channels = 4,