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Optimize state transition table sorting in ffv1
author
Michael Niedermayer
<michaelni@gmx.at>
Sun, 24 Oct 2010 12:31:12 +0000
(12:31 +0000)
committer
Michael Niedermayer
<michaelni@gmx.at>
Sun, 24 Oct 2010 12:31:12 +0000
(12:31 +0000)
Originally committed as revision 25561 to svn://svn.ffmpeg.org/ffmpeg/trunk
libavcodec/ffv1.c
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diff --git
a/libavcodec/ffv1.c
b/libavcodec/ffv1.c
index
e502e50
..
eddac74
100644
(file)
--- a/
libavcodec/ffv1.c
+++ b/
libavcodec/ffv1.c
@@
-885,7
+885,7
@@
static av_cold int encode_init(AVCodecContext *avctx)
do{
changed=0;
for(i=12; i<244; i++){
- for(i2=i+1; i2<245; i2++){
+ for(i2=i+1; i2<245
&& i2<i+4
; i2++){
#define COST(old, new) \
s->rc_stat[old][0]*-log2((256-(new))/256.0)\
+s->rc_stat[old][1]*-log2( (new) /256.0)