eden-emu/opus
17
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Completely removed the old allocation table.

Browse source 
Also made the new table an unsigned char array.
This commit is contained in:
Jean-Marc Valin 2010-06-03 23:29:35 -04:00
parent c51e98ba1b
commit 01b54b9964
2 changed files with 4 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

26
libcelt/modes.c
View file

@ -92,33 +92,13 @@ static const celt_int16 bark_freq[BARK_BANDS+1] = {
/* 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 */
#ifdef STDIN_TUNING
int BITALLOC_SIZE;
int *band_allocation;
#else
#define BITALLOC_SIZE 12
static const unsigned char band_allocation[BARK_BANDS*BITALLOC_SIZE] =
/* 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
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
};
static const celt_int16 alloc_5ms[] = {
static const unsigned char alloc_5ms[] = {
10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
10, 3, 8, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
10, 6, 8, 6, 5, 4, 3, 2, 7, 10, 11, 9, 7, 3, 1, 0, 0, 0, 0, 0, 0,
@ -203,11 +183,11 @@ static celt_int16 *compute_ebands(celt_int32 Fs, int frame_size, int res, int *n
static void compute_allocation_table(CELTMode *mode, int res)
{
int i, j, nBark;
celt_int16 *allocVectors;
unsigned char *allocVectors;
int maxBands = sizeof(eband5ms)/sizeof(eband5ms[0])-1;
mode->nbAllocVectors = BITALLOC_SIZE;
allocVectors = celt_alloc(sizeof(celt_int16)*(BITALLOC_SIZE*mode->nbEBands));
allocVectors = celt_alloc(sizeof(unsigned char)*(BITALLOC_SIZE*mode->nbEBands));
if (allocVectors==NULL)
return;

2
libcelt/modes.h
View file

@ -91,7 +91,7 @@ struct CELTMode {
celt_word16 ePredCoef;/**< Prediction coefficient for the energy encoding */
int nbAllocVectors; /**< Number of lines in the matrix below */
const celt_int16 *allocVectors; /**< Number of bits in each band for several rates */
const unsigned char *allocVectors; /**< Number of bits in each band for several rates */
const celt_int16 * const **bits;
const celt_int16 * const *(_bits[MAX_CONFIG_SIZES]); /**< Cache for pulses->bits mapping in each band */