+ 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(&cv, &map));
+ }
+
+ 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(&cv, &map));
+
+ r = cv;
+ pa_cvolume_set_balance(&r, &map,b);
+
+ k = pa_cvolume_get_balance(&r, &map);
+ 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" : "");
+ }
+
+ for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 51) {
+
+ double l = pa_sw_volume_to_linear(v);
+ pa_volume_t k = pa_sw_volume_from_linear(l);
+ double db = pa_sw_volume_to_dB(v);
+ pa_volume_t r = pa_sw_volume_from_dB(db);
+ pa_volume_t w;
+
+ pa_assert(k == v);
+ pa_assert(r == v);
+
+ for (w = PA_VOLUME_MUTED; w < PA_VOLUME_NORM*2; w += 37) {
+
+ double t = pa_sw_volume_to_linear(w);
+ double db2 = pa_sw_volume_to_dB(w);
+ pa_volume_t p, p1, p2;
+ double q, qq;
+
+ p = pa_sw_volume_multiply(v, w);
+ qq = db + db2;
+ p2 = pa_sw_volume_from_dB(qq);
+ q = l*t;
+ p1 = pa_sw_volume_from_linear(q);
+
+ if (p2 > p && p2 - p > md)
+ md = p2 - p;
+ if (p2 < p && p - p2 > md)
+ md = p - p2;
+ if (p1 > p && p1 - p > md)
+ md = p1 - p;
+ if (p1 < p && p - p1 > md)
+ md = p - p1;
+
+ if (p1 != p || p2 != p)
+ mdn++;
+ }
+ }
+
+ printf("max deviation: %lu n=%lu\n", (unsigned long) md, (unsigned long) mdn);
+
+ pa_assert(md <= 1);
+ pa_assert(mdn <= 251);
+