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simplify

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Originally committed as revision 5571 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2006-07-02 09:30:51 +00:00
parent 7943355485
commit 78f67b7ad3
1 changed files with 6 additions and 7 deletions
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13
libavcodec/flacenc.c
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@ -301,20 +301,19 @@ static void calc_sums(int pmax, uint32_t *data, int n, int pred_order,
uint32_t sums[][256]) uint32_t sums[][256])
{ {
int i, j; int i, j;
int parts, cnt; int parts;
uint32_t *res; uint32_t *res, *res_end;
/* sums for highest level */ /* sums for highest level */
parts = (1 << pmax); parts = (1 << pmax);
res = &data[pred_order]; res = &data[pred_order];
cnt = (n >> pmax) - pred_order; res_end = &data[n >> pmax];
for(i=0; i<parts; i++) { for(i=0; i<parts; i++) {
if(i == 1) cnt = (n >> pmax);
if(i > 0) res = &data[i*cnt];
sums[pmax][i] = 0; sums[pmax][i] = 0;
for(j=0; j<cnt; j++) { while(res < res_end){
sums[pmax][i] += res[j]; sums[pmax][i] += *(res++);
} }
res_end+= n >> pmax;
} }
/* sums for lower levels */ /* sums for lower levels */
for(i=pmax-1; i>=0; i--) { for(i=pmax-1; i>=0; i--) {