diff options
| author | Arun Raghavan <arun.raghavan@collabora.co.uk> | 2010-10-09 15:38:43 +0530 |
|---|---|---|
| committer | Arun Raghavan <arun.raghavan@collabora.co.uk> | 2010-10-15 01:10:00 +0530 |
| commit | 49101fc540aec9a249e97a9f650be38f9f92f5ac (patch) | |
| tree | 6b2049a66cb3f4c43adcb424468ff2deb852df84 /src/pulse/volume.h | |
| parent | 1d2ef7923d28a74e08a4309b6fa3d36481d2df3b (diff) | |
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.
Diffstat (limited to 'src/pulse/volume.h')
| -rw-r--r-- | src/pulse/volume.h | 3 |
1 files changed, 3 insertions, 0 deletions
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 */ |