From 49101fc540aec9a249e97a9f650be38f9f92f5ac Mon Sep 17 00:00:00 2001
From: Arun Raghavan <arun.raghavan@collabora.co.uk>
Date: Sat, 9 Oct 2010 15:38:43 +0530
Subject: volume: Clamp volume to PA_VOLUME_MAX

This ensures that we always clamp the volume to PA_VOLUME_MAX. While
this currently has no effect, it will be required for making sure we
don't exceed PA_VOLUME_MAX when its value changes in the future.
---
 src/pulse/volume.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/pulse/volume.h')

diff --git a/src/pulse/volume.h b/src/pulse/volume.h
index 9ef26f13..2f71a62c 100644
--- a/src/pulse/volume.h
+++ b/src/pulse/volume.h
@@ -121,6 +121,9 @@ typedef uint32_t pa_volume_t;
 /** Check if volume is valid. \since 0.9.22 */
 #define PA_VOLUME_IS_VALID(v) ((v) <= PA_VOLUME_MAX)
 
+/** Clamp volume to the permitted range. \since 0.9.22 */
+#define PA_CLAMP_VOLUME(v) (PA_CLAMP_UNLIKELY((v), PA_VOLUME_MUTED, PA_VOLUME_MAX))
+
 /** A structure encapsulating a per-channel volume */
 typedef struct pa_cvolume {
     uint8_t channels;                     /**< Number of channels */
-- 
cgit