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Commit 2dc6fbf0 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

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: default avatarTakashi Iwai <tiwai@suse.de>
parent 498dab3a
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+2 −2
Original line number Diff line number Diff line
@@ -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,