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authorLennart Poettering <lennart@poettering.net>2008-08-13 13:52:20 +0200
committerLennart Poettering <lennart@poettering.net>2008-08-13 13:52:20 +0200
commite4adcf7071a34d6338c564db11d8bc97a7b3c264 (patch)
treecd0807299ef46fbdda4f3af6235aef807407d52e
parenta176f68e0abb32331223dbb0dfa2dfcbe8af1cd6 (diff)
add new API function pa_cvolume_max()
-rw-r--r--src/pulse/volume.c12
-rw-r--r--src/pulse/volume.h3
2 files changed, 15 insertions, 0 deletions
diff --git a/src/pulse/volume.c b/src/pulse/volume.c
index 625eb19a..f0d45275 100644
--- a/src/pulse/volume.c
+++ b/src/pulse/volume.c
@@ -74,6 +74,18 @@ pa_volume_t pa_cvolume_avg(const pa_cvolume *a) {
return (pa_volume_t) sum;
}
+pa_volume_t pa_cvolume_max(const pa_cvolume *a) {
+ pa_volume_t m = 0;
+ int i;
+ pa_assert(a);
+
+ for (i = 0; i < a->channels; i++)
+ if (a->values[i] > m)
+ m = a->values[i];
+
+ return m;
+}
+
pa_volume_t pa_sw_volume_multiply(pa_volume_t a, pa_volume_t b) {
return pa_sw_volume_from_linear(pa_sw_volume_to_linear(a)* pa_sw_volume_to_linear(b));
}
diff --git a/src/pulse/volume.h b/src/pulse/volume.h
index 4fdbf658..a356f749 100644
--- a/src/pulse/volume.h
+++ b/src/pulse/volume.h
@@ -134,6 +134,9 @@ char *pa_cvolume_snprint(char *s, size_t l, const pa_cvolume *c);
/** Return the average volume of all channels */
pa_volume_t pa_cvolume_avg(const pa_cvolume *a) PA_GCC_PURE;
+/** Return the maximum volume of all channels. \since 0.9.12 */
+pa_volume_t pa_cvolume_max(const pa_cvolume *a) PA_GCC_PURE;
+
/** Return TRUE when the passed cvolume structure is valid, FALSE otherwise */
int pa_cvolume_valid(const pa_cvolume *v) PA_GCC_PURE;