Changeset 3541:1e63ce5b7951 in roaraudio for libroardsp

Timestamp:

02/20/10 00:57:23 (14 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

support for inverse channel mapping

File:

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

libroardsp/channels.c

@@ -327 +327 @@
     }
    break;
+  case ROARDSP_CHANMAP_INVMAP:
+    memset(map->map, (char)-1, sizeof(map->map));
+
+    for (a = 0; a < ROAR_MAX_CHANNELS; a++) {
+     if ( map->out[a] == ROARDSP_CHAN_NONE )
+      continue;
+
+     for (b = 0; b < ROAR_MAX_CHANNELS; b++) {
+      if ( map->out[a] == map->in[b] ) {
+       map->map[a] = b;
+       break;
+      }
+     }
+     if ( b == ROAR_MAX_CHANNELS ) { // src not found in dest
+      if ( err_on_none )
+       return -1;
+
+      map->map[a] = -1;
+     }
+    }
+   break;
   case ROARDSP_CHANMAP_IN:
   case ROARDSP_CHANMAP_OUT: