Squashed 'vorbis/' content from commit d22c3ab5f

git-subtree-dir: vorbis
git-subtree-split: d22c3ab5f633460abc2532feee60ca0892134cbf

1 files changed, 63 insertions, 0 deletions

diff --git a/lib/barkmel.c b/lib/barkmel.c
new file mode 100644
index 0000000..4b19935
--- /dev/null
+++ b/lib/barkmel.c
@@ -0,0 +1,63 @@
+/********************************************************************
+ *                                                                  *
+ * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE.   *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS     *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING.       *
+ *                                                                  *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007             *
+ * by the Xiph.Org Foundation http://www.xiph.org/                  *
+ *                                                                  *
+ ********************************************************************
+
+ function: bark scale utility
+
+ ********************************************************************/
+
+#include <stdio.h>
+#include "scales.h"
+int main(){
+  int i;
+  double rate;
+  for(i=64;i<32000;i*=2){
+    rate=48000.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+    rate=44100.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+    rate=32000.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+    rate=22050.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+    rate=16000.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+    rate=11025.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+    rate=8000.f;
+    fprintf(stderr,"rate=%gHz, block=%d, f(1)=%.2gHz bark(1)=%.2g (of %.2g)\n\n",
+            rate,i,rate/2 / (i/2),toBARK(rate/2 /(i/2)),toBARK(rate/2));
+
+
+  }
+  {
+    float i;
+    int j;
+    for(i=0.,j=0;i<28;i+=1,j++){
+      fprintf(stderr,"(%d) bark=%f %gHz (%d of 128)\n",
+              j,i,fromBARK(i),(int)(fromBARK(i)/22050.*128.));
+    }
+  }
+  return(0);
+}
+