[FFmpeg-cvslog] r13124 - trunk/libavcodec/ra144.c
astrange
subversion
Sun May 11 20:47:16 CEST 2008
Author: astrange
Date: Sun May 11 20:47:16 2008
New Revision: 13124
Log:
Simplify do_voice().
Patch by Vitor Sessak (vitor1001 gmail com)
Modified:
trunk/libavcodec/ra144.c
Modified: trunk/libavcodec/ra144.c
==============================================================================
--- trunk/libavcodec/ra144.c (original)
+++ trunk/libavcodec/ra144.c Sun May 11 20:47:16 2008
@@ -106,28 +106,21 @@ static int t_sqrt(unsigned int x)
static void do_voice(int *a1, int *a2)
{
int buffer[10];
- int *b1, *b2;
+ int *b1 = buffer;
+ int *b2 = a2;
int x, y;
- int *ptr;
-
- b1 = buffer;
- b2 = a2;
for (x=0; x < 10; x++) {
- b1[x] = (*a1) << 4;
+ b1[x] = a1[x] << 4;
+
+ for (y=0; y < x; y++)
+ b1[y] = ((a1[x] * (b2[x-y-1])) >> 12) + b2[y];
- if(x > 0) {
- ptr = b2 + x;
- for (y=0; y <= x - 1; y++)
- b1[y] = (((*a1) * (*(--ptr))) >> 12) + b2[y];
- }
FFSWAP(int *, b1, b2);
- a1++;
}
- ptr = a2 + 10;
- while (ptr > a2)
- (*a2++) >>= 4;
+ for (x=0; x < 10; x++)
+ a2[x] >>= 4;
}
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