Changeset 2394:73bdb0b3efd8 in roaraudio

Timestamp:

08/17/09 02:31:08 (15 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

added support for 32 bit so remove

File:

• libroardsp/remove.c (modified) (1 diff)

libroardsp/remove.c

@@ -192 +192 @@
 }
 
+int roar_remove_so32 (int32_t * subout, int32_t * in, int samples, struct roar_remove_state * state) {
+ int i;
+ register int64_t s;
+ register int64_t peak;
+
+ if ( state == NULL ) {
+  for (i = 0; i < samples; i++) {
+   s  = -subout[i];
+   s +=  in[i];
+   subout[i] = s;
+  }
+ } else {
+  peak = 4294967295UL;
+  for (i = 0; i < samples; i++) {
+   s  = -subout[i];
+   s +=  in[i];
+   s  = s < 0 ? -s : s; // we true 32 bit, not int operation here
+   if ( s > peak )
+    peak = s;
+  }
+
+  for (i = 0; i < samples; i++) {
+   s  = -subout[i];
+   s *=  4294967295UL;
+   s /=  peak;
+   s +=  in[i];
+   subout[i] = s;
+  }
+ }
+
+ return 0;
+}
+
 //ll