diff options
Diffstat (limited to 'third_party/g7221/common/defs.h')
| -rw-r--r-- | third_party/g7221/common/defs.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/third_party/g7221/common/defs.h b/third_party/g7221/common/defs.h new file mode 100644 index 00000000..2c4978e0 --- /dev/null +++ b/third_party/g7221/common/defs.h @@ -0,0 +1,205 @@ +/*********************************************************************** +** +** ITU-T G.722.1 (2005-05) - Fixed point implementation for main body and Annex C +** > Software Release 2.1 (2008-06) +** (Simple repackaging; no change from 2005-05 Release 2.0 code) +** +** © 2004 Polycom, Inc. +** +** All rights reserved. +** +***********************************************************************/ + +#include <stdio.h> +#include <math.h> +#include <stdlib.h> +#include "g7221/common/stl-files/typedef.h" +#include "g7221/common/stl-files/basop32.h" + +#define PI 3.141592653589793238462 + +#define MAX_DCT_LENGTH 640 +#define DCT_LENGTH 320 +#define DCT_LENGTH_DIV_2 160 +#define DCT_LENGTH_DIV_4 80 +#define DCT_LENGTH_DIV_8 40 +#define DCT_LENGTH_DIV_16 20 +#define DCT_LENGTH_DIV_32 10 +#define DCT_LENGTH_DIV_64 5 + + +#define MAX(a,b) (a > b ? a : b) +#define MIN(a,b) (a < b ? a : b) + +#define NUM_CATEGORIES 8 +#define NUM_CATEGORIZATION_CONTROL_BITS 4 +#define NUM_CATEGORIZATION_CONTROL_POSSIBILITIES 16 +#define CORE_SIZE 10 +#define DCT_LENGTH_LOG 6 +#define MAX_DCT_LENGTH_LOG 7 + +/* region_size = (BLOCK_SIZE * 0.875)/NUM_REGIONS; */ +#define NUMBER_OF_REGIONS 14 +#define MAX_NUMBER_OF_REGIONS 28 +#define REGION_SIZE 20 +#define NUMBER_OF_VALID_COEFS (NUMBER_OF_REGIONS * REGION_SIZE) +#define MAX_NUMBER_OF_VALID_COEFS (MAX_NUMBER_OF_REGIONS * REGION_SIZE) + +#define REGION_POWER_TABLE_SIZE 64 +#define REGION_POWER_TABLE_NUM_NEGATIVES 24 + +#define MAX_NUM_CATEGORIZATION_CONTROL_BITS 5 +#define MAX_NUM_CATEGORIZATION_CONTROL_POSSIBILITIES 32 + +#define ENCODER_SCALE_FACTOR 18318.0 + +/* The MLT output is incorrectly scaled by the factor + product of ENCODER_SCALE_FACTOR and sqrt(160.) + This is now (9/30/96) 1.0/2^(4.5) or 1/22.627. + In the current implementation this + must be an integer power of sqrt(2). The + integer power is ESF_ADJUSTMENT_TO_RMS_INDEX. + The -2 is to conform with the range defined in the spec. */ + + +#define ESF_ADJUSTMENT_TO_RMS_INDEX (9-2) + + +#define INTERMEDIATE_FILES_FLAG 0 + +/* Max bit rate is 48000 bits/sec. */ +#define MAX_BITS_PER_FRAME 960 + + +/***************************************************************************/ +/* Type definitions */ +/***************************************************************************/ +typedef struct +{ + Word16 code_bit_count; /* bit count of the current word */ + Word16 current_word; /* current word in the bitstream being processed */ + Word16 *code_word_ptr; /* pointer to the bitstream */ + Word16 number_of_bits_left; /* number of bits left in the current word */ + Word16 next_bit; /* next bit in the current word */ +}Bit_Obj; + +typedef struct +{ + Word16 seed0; + Word16 seed1; + Word16 seed2; + Word16 seed3; +}Rand_Obj; + +/***************************************************************************/ +/* Function definitions */ +/***************************************************************************/ +extern Word16 compute_region_powers(Word16 *mlt_coefs, + Word16 mag_shift, + Word16 *drp_num_bits, + UWord16 *drp_code_bits, + Word16 *absolute_region_power_index, + Word16 number_of_regions); + +void vector_quantize_mlts(Word16 number_of_available_bits, + Word16 number_of_regions, + Word16 num_categorization_control_possibilities, + Word16 *mlt_coefs, + Word16 *absolute_region_power_index, + Word16 *power_categories, + Word16 *category_balances, + Word16 *p_categorization_control, + Word16 *region_mlt_bit_counts, + UWord32 *region_mlt_bits); + +Word16 vector_huffman(Word16 category, + Word16 power_index, + Word16 *raw_mlt_ptr, + UWord32 *word_ptr); + + +void adjust_abs_region_power_index(Word16 *absolute_region_power_index,Word16 *mlt_coefs,Word16 number_of_regions); + +void bits_to_words(UWord32 *region_mlt_bits,Word16 *region_mlt_bit_counts, + Word16 *drp_num_bits,UWord16 *drp_code_bits,Word16 *out_words, + Word16 categorization_control, Word16 number_of_regions, + Word16 num_categorization_control_bits, Word16 number_of_bits_per_frame); + +void encoder(Word16 number_of_available_bits, + Word16 number_of_regions, + Word16 *mlt_coefs, + Word16 mag_shift, + Word16 *out_words); + +void decoder(Bit_Obj *bitobj, + Rand_Obj *randobj, + Word16 number_of_regions, + Word16 *decoder_mlt_coefs, + Word16 *p_mag_shift, + Word16 *p_old_mag_shift, + Word16 *old_decoder_mlt_coefs, + Word16 frame_error_flag); + +Word16 samples_to_rmlt_coefs(Word16 *new_samples,Word16 *history,Word16 *coefs,Word16 dct_length); +void rmlt_coefs_to_samples(Word16 *coefs, + Word16 *old_samples, + Word16 *out_samples, + Word16 dct_length, + Word16 mag_shift); + +Word16 index_to_array(Word16 index,Word16 *array,Word16 category); +void categorize(Word16 number_of_available_bits, + Word16 number_of_regions, + Word16 num_categorization_control_possibilities, + Word16 *rms_index, + Word16 *power_categories, + Word16 *category_balances); + +Word16 calc_offset(Word16 *rms_index,Word16 number_of_regions,Word16 available_bits); +void compute_raw_pow_categories(Word16 *power_categories,Word16 *rms_index,Word16 number_of_regions,Word16 offset); +void comp_powercat_and_catbalance(Word16 *power_categories, + Word16 *category_balances, + Word16 *rms_index, + Word16 number_of_available_bits, + Word16 number_of_regions, + Word16 num_categorization_control_possibilities, + Word16 offset); + +void dct_type_iv_a (Word16 *input,Word16 *output,Word16 dct_length); +void dct_type_iv_s(Word16 *input,Word16 *output,Word16 dct_length); +void decode_envelope(Bit_Obj *bitobj, + Word16 number_of_regions, + Word16 *decoder_region_standard_deviation, + Word16 *absolute_region_power_index, + Word16 *p_mag_shift); + +void decode_vector_quantized_mlt_indices(Bit_Obj *bitobj, + Rand_Obj *randobj, + Word16 number_of_regions, + Word16 *decoder_region_standard_deviation, + Word16 *dedecoder_power_categories, + Word16 *dedecoder_mlt_coefs); + +void rate_adjust_categories(Word16 categorization_control, + Word16 *decoder_power_categories, + Word16 *decoder_category_balances); + +void get_next_bit(Bit_Obj *bitobj); +Word16 get_rand(Rand_Obj *randobj); + +void test_4_frame_errors(Bit_Obj *bitobj, + Word16 number_of_regions, + Word16 num_categorization_control_possibilities, + Word16 *frame_error_flag, + Word16 categorization_control, + Word16 *absolute_region_power_index); + +void error_handling(Word16 number_of_coefs, + Word16 number_of_valid_coefs, + Word16 *frame_error_flag, + Word16 *decoder_mlt_coefs, + Word16 *old_decoder_mlt_coefs, + Word16 *p_mag_shift, + Word16 *p_old_mag_shift); + + |