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static modes simplifications for std mode

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This commit is contained in:
Jean-Marc Valin 2010-09-03 11:52:38 -04:00
parent 5493ded371
commit e0c25452e8
2 changed files with 60 additions and 49 deletions
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42
libcelt/modes.c
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@ -42,6 +42,25 @@
#include "stack_alloc.h"
#include "quant_bands.h"
static const celt_int16 eband5ms[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 34, 40, 48, 60, 78, 100
};
#define BITALLOC_SIZE 9
/* Bit allocation table in units of 1/32 bit/sample (0.1875 dB SNR) */
static const unsigned char band_allocation[] = {
/*0 200 400 600 800 1k 1.2 1.4 1.6 2k 2.4 2.8 3.2 4k 4.8 5.6 6.8 8k 9.6 12k 15.6 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
80, 80, 75, 70, 65, 60, 55, 50, 44, 40, 35, 30, 15, 1, 0, 0, 0, 0, 0, 0, 0,
90, 85, 85, 85, 85, 82, 78, 74, 70, 65, 60, 54, 45, 35, 25, 15, 1, 0, 0, 0, 0,
120,110,110,110,100, 96, 90, 88, 84, 76, 70, 65, 60, 45, 35, 25, 20, 1, 1, 0, 0,
135,125,125,125,115,112,104,104,100, 96, 83, 78, 70, 55, 46, 36, 32, 28, 20, 8, 0,
175,170,167,155,149,145,143,138,138,138,129,124,108, 96, 88, 83, 72, 56, 44, 28, 2,
224,192,192,192,192,192,192,192,192,192,192,192,156,128,108, 96, 88, 76, 68, 44, 20,
255,224,224,224,224,224,224,224,224,224,224,224,224,188,164,148,124, 96, 80, 64, 40,
255,255,255,255,255,255,255,255,255,255,255,255,255,255,252,220,188,144,104, 84, 60,
};
#ifdef STATIC_MODES
#include "static_modes.c"
#endif
@ -83,29 +102,6 @@ static const celt_int16 bark_freq[BARK_BANDS+1] = {
6400, 7700, 9500, 12000, 15500,
20000};
/* This allocation table is per critical band. When creating a mode, the bits get added together
into the codec bands, which are sometimes larger than one critical band at low frequency */
#define BITALLOC_SIZE 10
static const celt_int16 eband5ms[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 20, 24, 28, 34, 40, 48, 60, 78, 100
};
/* Bit allocation table in units of 1/32 bit/sample (0.1875 dB SNR) */
static const unsigned char band_allocation[] = {
/*0 200 400 600 800 1k 1.2 1.4 1.6 2k 2.4 2.8 3.2 4k 4.8 5.6 6.8 8k 9.6 12k 15.6 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
80, 80, 75, 70, 65, 60, 55, 50, 44, 40, 35, 30, 15, 1, 0, 0, 0, 0, 0, 0, 0,
90, 85, 85, 85, 85, 82, 78, 74, 70, 65, 60, 54, 45, 35, 25, 15, 1, 0, 0, 0, 0,
120,110,110,110,100, 96, 90, 88, 84, 76, 70, 65, 60, 45, 35, 25, 20, 1, 1, 0, 0,
135,125,125,125,115,112,104,104,100, 96, 83, 78, 70, 55, 46, 36, 32, 28, 20, 8, 0,
175,170,167,155,149,145,143,138,138,138,129,124,108, 96, 88, 83, 72, 56, 44, 28, 2,
224,192,192,192,192,192,192,192,192,192,192,192,156,128,108, 96, 88, 76, 68, 44, 20,
255,224,224,224,224,224,224,224,224,224,224,224,224,188,164,148,124, 96, 80, 64, 40,
255,255,255,255,255,255,255,255,255,255,255,255,255,255,252,220,188,144,104, 84, 60,
};
static celt_int16 *compute_ebands(celt_int32 Fs, int frame_size, int res, int *nbEBands)
{
celt_int16 *eBands;