shithub: opus

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ref: 8e511a816b97a32cf476171d7a78202624b4b679
parent: 3908c58cf6a1f3398fdbfa7519e8afb14636d221
author: Christopher Montgomery <[email protected]>
date: Thu Jul 2 22:10:17 EDT 2009

Increasing allocation to the low-mid frequencies

--- a/libcelt/modes.c
+++ b/libcelt/modes.c
@@ -112,18 +112,19 @@
 #else
 #define BITALLOC_SIZE 12
 static const int band_allocation[BARK_BANDS*BITALLOC_SIZE] = 
-   {  4,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
-      2,  2,  1,  1,  2,  2,  1,  1,  1,  1,  1,  1,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
-      2,  2,  2,  1,  2,  2,  2,  2,  2,  1,  2,  2,  4,  5,  7,  7,  7,  5,  4,  0,  0,  0,  0,  0,  0,
-      2,  2,  2,  2,  3,  2,  2,  2,  2,  2,  3,  3,  5,  6,  8,  8,  8,  6,  5,  4,  0,  0,  0,  0,  0,
-      3,  2,  2,  2,  3,  3,  2,  3,  2,  3,  4,  4,  6,  7,  9,  9,  9,  7,  6,  5,  5,  5,  0,  0,  0,
-      3,  3,  2,  2,  3,  3,  3,  3,  3,  4,  4,  5,  7,  9, 10, 10, 10,  9,  6,  5,  5,  5,  5,  1,  0,
-      4,  3,  3,  3,  3,  3,  3,  3,  4,  4,  6,  7,  7,  9, 11, 10, 10,  9,  9,  8, 11, 10, 10,  1,  1,
-      5,  5,  5,  5,  5,  5,  5,  6,  6,  6,  8,  8, 10, 12, 12, 11, 11, 17, 12, 15, 15, 20, 18, 10,  1,
-      8,  7,  7,  7,  7,  7,  8,  8,  9, 10, 11, 12, 14, 17, 18, 21, 22, 27, 29, 39, 37, 38, 40, 35,  1,
-      7,  7,  7,  7,  7,  7, 10, 10, 10, 13, 14, 18, 20, 24, 28, 32, 32, 35, 38, 38, 42, 50, 59, 54, 31,
-      8,  8,  8,  8,  8,  9, 10, 12, 14, 20, 22, 25, 28, 30, 35, 42, 46, 50, 55, 60, 62, 62, 72, 82, 62,
-      9,  9,  9, 10, 12, 13, 15, 18, 22, 30, 32, 35, 40, 45, 55, 62, 66, 70, 85, 90, 92, 92, 92,102, 92,
+   /* 0 100 200 300 400 510 630 770 920 1k  1.2 1.5 1.7 2k  2.3 2.7 3.1 3.7 4.4 5.3 6.4 7.7 9.5 12k 15k  */
+   {  4,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /*0*/
+      2,  2,  1,  1,  2,  2,  1,  1,  1,  1,  1,  1,  1,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, /*1*/
+      2,  2,  2,  1,  2,  2,  2,  2,  2,  2,  2,  2,  4,  5,  7,  7,  7,  5,  4,  0,  0,  0,  0,  0,  0, /*2*/
+      2,  2,  2,  2,  3,  3,  3,  3,  3,  3,  3,  3,  5,  6,  8,  8,  8,  6,  5,  4,  0,  0,  0,  0,  0, /*3*/
+      3,  2,  2,  2,  3,  4,  4,  4,  4,  4,  4,  4,  6,  7,  9,  9,  9,  7,  6,  5,  5,  5,  0,  0,  0, /*4*/
+      3,  3,  3,  4,  4,  5,  6,  6,  6,  6,  6,  7,  7,  9, 10, 10, 10,  9,  6,  5,  5,  5,  5,  1,  0, /*5*/
+      4,  3,  3,  4,  6,  7,  7,  7,  7,  7,  8,  9,  9,  9, 11, 10, 10,  9,  9,  8, 11, 10, 10,  1,  0, /*6*/
+      5,  5,  5,  6,  7,  7,  7,  7,  8,  8,  9, 10, 10, 12, 12, 11, 11, 17, 12, 15, 15, 20, 18, 10,  1, /*7*/
+      6,  7,  7,  7,  8,  8,  8,  8,  9, 10, 11, 12, 14, 17, 18, 21, 22, 27, 29, 39, 37, 38, 40, 35,  1, /*8*/
+      7,  7,  7,  8,  8,  8, 10, 10, 10, 13, 14, 18, 20, 24, 28, 32, 32, 35, 38, 38, 42, 50, 59, 54, 31, /*9*/
+      8,  8,  8,  8,  8,  9, 10, 12, 14, 20, 22, 25, 28, 30, 35, 42, 46, 50, 55, 60, 62, 62, 72, 82, 62, /*10*/
+      9,  9,  9, 10, 12, 13, 15, 18, 22, 30, 32, 35, 40, 45, 55, 62, 66, 70, 85, 90, 92, 92, 92,102, 92, /*11*/
    };
 #endif