57 lines
2.0 KiB
C
57 lines
2.0 KiB
C
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/*
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* File: c2wideband.h
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* Author: phil
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*
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* Created on 02 July 2017, 20:42
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*/
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#ifndef C2WIDEBAND_H
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#define C2WIDEBAND_H
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#include "defines.h"
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#include "phase.h"
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#include "quantise.h"
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#include "newamp1.h"
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#include "codec2_internal.h"
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#define C2WB_K 30 /* rate K vector length */
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#define C2WB_FS 16000
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#define C2WB_NT 8 /* number of blocks in time = 160ms blocks */
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#define C2WB_TF 0.02 /* 20ms frames */
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#define C2WB_DEC 2 /* decimation factor */
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#define C2WB_SPERF 30 /* samples per frame */
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//TODO: decide what this is
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#define C2WB_BPERF 256 /* bits per frame */
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typedef struct {
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int rmap[C2WB_K * C2WB_NT];
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int cmap[C2WB_K * C2WB_NT];
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} WIDEBAND_MAP;
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void codec2_decode_wb(struct CODEC2 *c2, short speech[], const unsigned char * bits);
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void calculate_Am_freqs_kHz(float Wo, int L, float p_Am_freqs_kHz[]);
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void resample_const_rate_f_mel(C2CONST *c2const, MODEL * model, float K, float* rate_K_surface, float* rate_K_sample_freqs_kHz);
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void correct_rate_K_vec(MODEL *model, float rate_K_vec[], float rate_K_sample_freqs_kHz[], float Am_freqs_kHz[], float orig_AmdB[], int K, float Wo, int L, int Fs, float rate_K_vec_corrected[]);
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void batch_rate_K_dct2(C2CONST *c2const, MODEL model_frames[], int frames, int vq_en, int plots, int* voicing, float *mean_);
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void rate_K_dct2(C2CONST *c2const, int n_block_frames, MODEL model_block[n_block_frames], WIDEBAND_MAP * wb_map);
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void wideband_enc_dec(C2CONST *c2const, int n_block_frames, MODEL model_block[], WIDEBAND_MAP * wb_map,
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MODEL model_block_[], float * p_dct2_sd, int * p_qn , float rate_K_surface_block[][C2WB_K], float rate_K_surface_block_[][C2WB_K]);
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void codec2_decode_wb(struct CODEC2 *c2, short speech[], const unsigned char * bits);
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void codec2_encode_wb(struct CODEC2 *c2, unsigned char * bits, short speech[]);
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void experiment_rate_K_dct2(C2CONST *c2const, MODEL model_frames[], int frames);
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* C2WIDEBAND_H */
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