[SCM] libav/experimental: simplify
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:54:55 UTC 2013
The following commit has been merged in the experimental branch:
commit 597e3232ef9b65a1df9f8b9ae37d70547a680bd2
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Sun Jan 14 21:40:21 2007 +0000
simplify
Originally committed as revision 7504 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavutil/aes.c b/libavutil/aes.c
index d649dfa..f14523b 100644
--- a/libavutil/aes.c
+++ b/libavutil/aes.c
@@ -99,22 +99,16 @@ void av_aes_encrypt(AVAES *a){
crypt(a, 2, sbox, enc_multbl);
}
-static void init_multbl3(uint8_t tbl[4][256][4]){
- int i, j, k;
- for(k=1; k<4; k++)
- for(j=0; j<256; j++)
- for(i=0; i<4; i++)
- tbl[k][j][i]= tbl[k-1][j][(i-1)&3];
-}
-
static void init_multbl2(uint8_t tbl[1024], int c[4], uint8_t *log8, uint8_t *alog8, uint8_t *sbox){
- int i;
+ int i, j;
for(i=0; i<1024; i++){
int x= sbox[i/4];
if(x) tbl[i]= alog8[ log8[x] + log8[c[i&3]] ];
}
#ifndef CONFIG_SMALL
- init_multbl3(tbl);
+ for(j=256; j<1024; j++)
+ for(i=0; i<4; i++)
+ tbl[4*j+i]= tbl[4*j + ((i-1)&3) - 1024];
#endif
}
--
Libav/FFmpeg packaging
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