From cc767a89690935048373151a556041fde536c6ef Mon Sep 17 00:00:00 2001
From: Oded Shimon <ods15@ods15.dyndns.org>
Date: Mon, 2 Oct 2006 06:09:24 +0000
Subject: [PATCH] Original Commit: r103 | ods15 | 2006-10-01 18:00:43 +0200
(Sun, 01 Oct 2006) | 2 lines
slight optimization, don't calculate average twice
Originally committed as revision 6507 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/vorbis_enc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavcodec/vorbis_enc.c b/libavcodec/vorbis_enc.c
index 0fe629874ae..964e1a108ed 100644
--- a/libavcodec/vorbis_enc.c
+++ b/libavcodec/vorbis_enc.c
@@ -1116,13 +1116,14 @@ static void floor_fit(venc_context_t * venc, floor_t * fc, float * coeffs, int *
int range = 255 / fc->multiplier + 1;
int i;
float tot_average = 0.;
- for (i = 0; i < fc->values; i++) tot_average += get_floor_average(fc, coeffs, i);
+ float averages[fc->values];
+ for (i = 0; i < fc->values; i++) tot_average += averages[i] = get_floor_average(fc, coeffs, i);
tot_average /= fc->values;
tot_average /= venc->quality;
for (i = 0; i < fc->values; i++) {
int position = fc->list[fc->list[i].sort].x;
- float average = get_floor_average(fc, coeffs, i);
+ float average = averages[i];
int j;
average /= pow(average, 0.5) / tot_average * pow(0.8, position/200.); // MAGIC!
--
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