summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorWim Taymans <wim.taymans@collabora.co.uk>2009-08-19 20:47:48 +0200
committerWim Taymans <wim.taymans@collabora.co.uk>2009-08-20 11:31:04 +0200
commit3cc1278dcf44c9fb93bfd2725a2f75de1958cf23 (patch)
tree768ef0eeb23ec08548b5a3ac958ea1b7c8f8fecf
parentaeae567f8861d2f068ebd0f054cd9d0aa6a7fe95 (diff)
resampler: avoid some multiplies when we can
-rw-r--r--src/pulsecore/resampler.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/pulsecore/resampler.c b/src/pulsecore/resampler.c
index 2256516e..43771dc8 100644
--- a/src/pulsecore/resampler.c
+++ b/src/pulsecore/resampler.c
@@ -1122,8 +1122,13 @@ static void remap_channels_matrix (pa_resampler *r, void *dst, const void *src,
d = (float *)dst + oc;
s = (float *)src + ic;
- for (i = n; i > 0; i--, s += n_ic, d += n_oc)
- *d += *s * vol;
+ if (vol >= 1.0) {
+ for (i = n; i > 0; i--, s += n_ic, d += n_oc)
+ *d += *s;
+ } else {
+ for (i = n; i > 0; i--, s += n_ic, d += n_oc)
+ *d += *s * vol;
+ }
}
}