From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 11 Sep 2012 09:33:31 +0000 (+0200)
Subject: PCM: Add SND_CHMAP_API_VERSION definition
X-Git-Tag: v1.0.27~50
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=fe81684745e5c121e2d110bf6955e3f2858d2c7c;p=alsa-lib.git

PCM: Add SND_CHMAP_API_VERSION definition

Just to make it easier for apps to support chmap conditionally via
simple ifdefs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/include/pcm.h b/include/pcm.h
index 7ec1af2a..b27eb38d 100644
--- a/include/pcm.h
+++ b/include/pcm.h
@@ -474,6 +474,9 @@ 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);
 
+/** channel mapping API version number */
+#define SND_CHMAP_API_VERSION	((1 << 16) | (0 << 8) | 0)
+
 /** channel map list type */
 enum snd_pcm_chmap_type {
 	SND_CHMAP_TYPE_NONE = 0,/** unspecified channel position */