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authorLennart Poettering <lennart@poettering.net>2009-01-19 21:45:58 +0100
committerLennart Poettering <lennart@poettering.net>2009-01-19 21:45:58 +0100
commit723d71a021d3693941c98648c24d0db17ea16117 (patch)
treea84c5eeae6c2128b06fb805f32a4a8752204835e /src/tests/voltest.c
parent606cf8a2ec9d5f84b88039b14e17a93b706be9da (diff)
add api for manipulating volume balances
Diffstat (limited to 'src/tests/voltest.c')
-rw-r--r--src/tests/voltest.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/tests/voltest.c b/src/tests/voltest.c
index 5bfc97e0..879d86b9 100644
--- a/src/tests/voltest.c
+++ b/src/tests/voltest.c
@@ -6,6 +6,8 @@
int main(int argc, char *argv[]) {
pa_volume_t v;
pa_cvolume cv;
+ float b;
+ pa_channel_map map;
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
@@ -28,5 +30,32 @@ int main(int argc, char *argv[]) {
}
+ map.channels = cv.channels = 2;
+ map.map[0] = PA_CHANNEL_POSITION_LEFT;
+ map.map[1] = PA_CHANNEL_POSITION_RIGHT;
+
+ for (cv.values[0] = PA_VOLUME_MUTED; cv.values[0] <= PA_VOLUME_NORM*2; cv.values[0] += 4096)
+ for (cv.values[1] = PA_VOLUME_MUTED; cv.values[1] <= PA_VOLUME_NORM*2; cv.values[1] += 4096) {
+ char s[PA_CVOLUME_SNPRINT_MAX];
+
+ printf("Volume: [%s]; balance: %2.1f\n", pa_cvolume_snprint(s, sizeof(s), &cv), pa_cvolume_get_balance(&map, &cv));
+ }
+
+ for (cv.values[0] = PA_VOLUME_MUTED+4096; cv.values[0] <= PA_VOLUME_NORM*2; cv.values[0] += 4096)
+ for (cv.values[1] = PA_VOLUME_MUTED; cv.values[1] <= PA_VOLUME_NORM*2; cv.values[1] += 4096)
+ for (b = -1.0f; b <= 1.0f; b += 0.2f) {
+ char s[PA_CVOLUME_SNPRINT_MAX];
+ pa_cvolume r;
+ float k;
+
+ printf("Before: volume: [%s]; balance: %2.1f\n", pa_cvolume_snprint(s, sizeof(s), &cv), pa_cvolume_get_balance(&map, &cv));
+
+ r = cv;
+ pa_cvolume_set_balance(&map, &r, b);
+
+ k = pa_cvolume_get_balance(&map, &r);
+ printf("After: volume: [%s]; balance: %2.1f (intended: %2.1f) %s\n", pa_cvolume_snprint(s, sizeof(s), &r), k, b, k < b-.05 || k > b+.5 ? "MISMATCH" : "");
+ }
+
return 0;
}