Add Gibss phenomenon hack to end of the packet (as well as the start).

2014-08-29 12:00:30 +01:00
parent 0a583f1b55
commit 88fc18ad49
1 changed files with 9 additions and 5 deletions
@@ -609,16 +609,20 @@ static int stuff_buffer_soxr(short *inptr, short *outptr, int stuff) {

    const int gpm = 7;
    
-    // keep the last (dpm) samples, to mitigate the Gibbs phenomenon
-    //for (i=0;i<gpm;i++)
-    //	op[frame_size+stuff-1-i]=ip[frame_size+stuff-1-i];
-
    // keep the first (dpm) samples, to mitigate the Gibbs phenomenon
    for (i=0;i<gpm;i++) {
      *op++ = *ip++;
      *op++ = *ip++;
    }
-  
+
+    // keep the last (dpm) samples, to mitigate the Gibbs phenomenon
+    op=outptr+(frame_size+stuff-gpm)*sizeof(short);
+    ip=inptr+(frame_size-gpm)*sizeof(short);
+    for (i=0;i<gpm;i++) {
+      *op++ = *ip++;
+      *op++ = *ip++;
+    }
+
    // finally, adjust the volume, if necessary
    if (volume!=1.0) {
      // pthread_mutex_lock(&vol_mutex);