diff options
author | Wim Taymans <wim.taymans@collabora.co.uk> | 2009-08-19 20:47:48 +0200 |
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committer | Wim Taymans <wim.taymans@collabora.co.uk> | 2009-08-20 11:31:04 +0200 |
commit | 3cc1278dcf44c9fb93bfd2725a2f75de1958cf23 (patch) | |
tree | 768ef0eeb23ec08548b5a3ac958ea1b7c8f8fecf /src | |
parent | aeae567f8861d2f068ebd0f054cd9d0aa6a7fe95 (diff) |
resampler: avoid some multiplies when we can
Diffstat (limited to 'src')
-rw-r--r-- | src/pulsecore/resampler.c | 9 |
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; + } } } |