filters.c: Find max_val even when norm_bits is 0.

shorepine · Mar 30, 2024 · fedd46b · fedd46b
1 parent 2894bf6
commit fedd46b
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/src/filters.c b/src/filters.c
@@ -629,13 +629,15 @@ SAMPLE block_norm(SAMPLE* block, int len, int bits) {
  AMY_PROFILE_START(BLOCK_NORM)
 
  SAMPLE max_val = 0;
- if (bits > 0) {
+ if (bits >= 0) {
+ // do this even if bits == 0 to ensure max_val is set.
  while(len--) {
  *block = SHIFTL(*block, bits);
  if (*block > max_val) max_val = *block;
  ++block;
  }
- } else if (bits < 0) {
+ } else {
+ // bits is negative - right-shift.
  bits = -bits;
  while(len--) {
  *block = SHIFTR(*block, bits);