diff options
| author | Arun Raghavan <arun.raghavan@collabora.co.uk> | 2010-10-09 22:30:20 +0530 |
|---|---|---|
| committer | Arun Raghavan <arun.raghavan@collabora.co.uk> | 2010-10-15 01:10:00 +0530 |
| commit | 1d2ef7923d28a74e08a4309b6fa3d36481d2df3b (patch) | |
| tree | 50a611811a1408f682ff21500f3f679e429c327a /src/pulse/volume.h | |
| parent | 4d84a00b495c44a9e348534bf754ace823c9abe8 (diff) | |
volume: Use a macro to check if a volume is valid
This adds a PA_VOLUME_IS_VALID() macro for checking if a given
pa_volume_t is valid. This makes changes to the volume ranges simpler
(just change PA_VOLUME_MAX, for example, without needing to modify any
other code).
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 594cf91d..9ef26f13 100644 --- a/src/pulse/volume.h +++ b/src/pulse/volume.h @@ -118,6 +118,9 @@ typedef uint32_t pa_volume_t; /** Special 'invalid' volume. \since 0.9.16 */ #define PA_VOLUME_INVALID ((pa_volume_t) UINT32_MAX) +/** Check if volume is valid. \since 0.9.22 */ +#define PA_VOLUME_IS_VALID(v) ((v) <= PA_VOLUME_MAX) + /** A structure encapsulating a per-channel volume */ typedef struct pa_cvolume { uint8_t channels; /**< Number of channels */ |