jamulus/libs/celt/cc6_quant_bands.h

/* (C) 2007 Jean-Marc Valin, CSIRO
  */
/*
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   are met:
   
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   ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/

#ifndef cc6_QUANT_BANDS
#define cc6_QUANT_BANDS

#include "cc6_arch.h"
#include "cc6_modes.h"
#include "cc6_entenc.h"
#include "cc6_entdec.h"
#include "cc6_mathops.h"

static __inline cc6_celt_word16_t cc6_amp2Log(cc6_celt_word32_t amp)
{
    return cc6_celt_log2(cc6_MAX32(cc6_QCONST32(.001f,14),cc6_SHL32(amp,2)));
}

static __inline cc6_celt_word32_t cc6_log2Amp(cc6_celt_word16_t lg)
{
    return cc6_PSHR32(cc6_celt_exp2(cc6_SHL16(lg,3)),4);
}

int *cc6_quant_prob_alloc(const cc6_CELTMode *m);
void cc6_quant_prob_free(int *freq);

void cc6_compute_fine_allocation(const cc6_CELTMode *m, int *bits, int budget);

int cc6_intra_decision(cc6_celt_word16_t *eBands, cc6_celt_word16_t *oldEBands, int len);

unsigned cc6_quant_coarse_energy(const cc6_CELTMode *m, cc6_celt_word16_t *eBands, cc6_celt_word16_t *oldEBands, int budget, int intra, int *prob, cc6_celt_word16_t *error, cc6_ec_enc *enc);

void cc6_quant_fine_energy(const cc6_CELTMode *m, cc6_celt_ener_t *eBands, cc6_celt_word16_t *oldEBands, cc6_celt_word16_t *error, int *fine_quant, cc6_ec_enc *enc);

void cc6_quant_energy_finalise(const cc6_CELTMode *m, cc6_celt_ener_t *eBands, cc6_celt_word16_t *oldEBands, cc6_celt_word16_t *error, int *fine_quant, int *fine_priority, int bits_left, cc6_ec_enc *enc);

void cc6_unquant_coarse_energy(const cc6_CELTMode *m, cc6_celt_ener_t *eBands, cc6_celt_word16_t *oldEBands, int budget, int intra, int *prob, cc6_ec_dec *dec);

void cc6_unquant_fine_energy(const cc6_CELTMode *m, cc6_celt_ener_t *eBands, cc6_celt_word16_t *oldEBands, int *fine_quant, cc6_ec_dec *dec);

void cc6_unquant_energy_finalise(const cc6_CELTMode *m, cc6_celt_ener_t *eBands, cc6_celt_word16_t *oldEBands, int *fine_quant, int *fine_priority, int bits_left, cc6_ec_dec *dec);

#endif /* cc6_QUANT_BANDS */