From 723d71a021d3693941c98648c24d0db17ea16117 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 19 Jan 2009 21:45:58 +0100 Subject: add api for manipulating volume balances --- src/tests/voltest.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) (limited to 'src/tests') 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; } -- cgit