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40 lines
1003 B
C
40 lines
1003 B
C
3 years ago
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#ifndef QBASE_H
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#define QBASE_H
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#include "defines.h"
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#define WO_BITS 7
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#define WO_LEVELS (1<<WO_BITS)
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#define WO_DT_BITS 3
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#define E_BITS 5
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#define E_LEVELS (1<<E_BITS)
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#define E_MIN_DB -10.0
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#define E_MAX_DB 40.0
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#define LSP_SCALAR_INDEXES 10
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#define LSPD_SCALAR_INDEXES 10
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#define LSP_PRED_VQ_INDEXES 3
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#define WO_E_BITS 8
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#define LPCPF_GAMMA 0.5
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#define LPCPF_BETA 0.2
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class CQbase {
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public:
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int encode_WoE(MODEL *model, float e, float xq[]);
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void decode_WoE(C2CONST *c2const, MODEL *model, float *e, float xq[], int n1);
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int encode_log_Wo(C2CONST *c2const, float Wo, int bits);
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float decode_log_Wo(C2CONST *c2const, int index, int bits);
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protected:
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long quantise(const float * cb, float vec[], float w[], int k, int m, float *se);
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void compute_weights2(const float *x, const float *xp, float *w);
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int find_nearest_weighted(const float *codebook, int nb_entries, float *x, const float *w, int ndim);
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const float ge_coeff[2] = { 0.8, 0.9 };
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};
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#endif
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