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Avoid division by zero that caused noise, typically at the beginning or
author
Frank Barchard
<fbarchard@google.com>
Wed, 2 Jun 2010 16:09:19 +0000
(16:09 +0000)
committer
Carl Eugen Hoyos
<cehoyos@rainbow.studorg.tuwien.ac.at>
Wed, 2 Jun 2010 16:09:19 +0000
(16:09 +0000)
end of a file.
Patch by Frank Barchard, fbarchard google
Originally committed as revision 23426 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/vorbis_enc.c
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diff --git
a/libavcodec/vorbis_enc.c
b/libavcodec/vorbis_enc.c
index
01d1b85
..
b18f653
100644
(file)
--- a/
libavcodec/vorbis_enc.c
+++ b/
libavcodec/vorbis_enc.c
@@
-681,7
+681,7
@@
static void floor_fit(vorbis_enc_context *venc, vorbis_enc_floor *fc,
float average = averages[i];
int j;
- average
*= pow(tot_average / average, 0.5) * pow(1.25, position/200.
); // MAGIC!
+ average
= sqrt(tot_average * average) * pow(1.25f, position*0.005f
); // MAGIC!
for (j = 0; j < range - 1; j++)
if (ff_vorbis_floor1_inverse_db_table[j * fc->multiplier] > average)
break;