www.pudn.com > T-REC-G.722.1-200505-I!!SOFT-ZST-E.zip > huff_def.h

/*********************************************************************** 
************************************************************************ 
** 
**   ITU-T 7/14kHz Audio Coder Candidate (G.722.1 Annex C) Source Code 
** 
**   © 2004 Polycom, Inc. 
** 
**   All rights reserved. 
** 
************************************************************************ 
***********************************************************************/ 
 
#define REGION_POWER_STEPSIZE_DB 3.010299957 
#define ABS_REGION_POWER_LEVELS  32 
#define DIFF_REGION_POWER_LEVELS 24 
 
#define DRP_DIFF_MIN -12 
#define DRP_DIFF_MAX 11 
 
#define MAX_NUM_BINS 16 
#define MAX_VECTOR_INDICES 625 
#define MAX_VECTOR_DIMENSION 5 
 
extern Word16  differential_region_power_bits[MAX_NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS]; 
extern UWord16 differential_region_power_codes[MAX_NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS]; 
extern Word16  differential_region_power_decoder_tree[MAX_NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS-1][2]; 
extern Word16  mlt_quant_centroid[NUM_CATEGORIES][MAX_NUM_BINS]; 
extern Word16  expected_bits_table[NUM_CATEGORIES]; 
extern Word16  mlt_sqvh_bitcount_category_0[196]; 
extern UWord16 mlt_sqvh_code_category_0[196]; 
extern Word16  mlt_sqvh_bitcount_category_1[100]; 
extern UWord16 mlt_sqvh_code_category_1[100]; 
extern Word16  mlt_sqvh_bitcount_category_2[49]; 
extern UWord16 mlt_sqvh_code_category_2[49]; 
extern Word16  mlt_sqvh_bitcount_category_3[625]; 
extern UWord16 mlt_sqvh_code_category_3[625]; 
extern Word16  mlt_sqvh_bitcount_category_4[256]; 
extern UWord16 mlt_sqvh_code_category_4[256]; 
extern Word16  mlt_sqvh_bitcount_category_5[243]; 
extern UWord16 mlt_sqvh_code_category_5[243]; 
extern Word16  mlt_sqvh_bitcount_category_6[32]; 
extern UWord16 mlt_sqvh_code_category_6[32]; 
extern Word16  *table_of_bitcount_tables[NUM_CATEGORIES-1]; 
extern UWord16 *table_of_code_tables[NUM_CATEGORIES-1]; 
extern Word16  mlt_decoder_tree_category_0[180][2]; 
extern Word16  mlt_decoder_tree_category_1[93][2]; 
extern Word16  mlt_decoder_tree_category_2[47][2]; 
extern Word16  mlt_decoder_tree_category_3[519][2]; 
extern Word16  mlt_decoder_tree_category_4[208][2]; 
extern Word16  mlt_decoder_tree_category_5[191][2]; 
extern Word16  mlt_decoder_tree_category_6[31][2]; 
extern Word16  *table_of_decoder_tables[NUM_CATEGORIES-1];