ref: dc68eb231f98533b61d5451233a1d518729946cf
dir: /libcelt/quant_bands.h/
/* Copyright (c) 2007-2008 CSIRO Copyright (c) 2007-2009 Xiph.Org Foundation Written by Jean-Marc Valin */ /* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of the Xiph.org Foundation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef QUANT_BANDS #define QUANT_BANDS #include "arch.h" #include "modes.h" #include "entenc.h" #include "entdec.h" #include "mathops.h" static inline celt_word16 amp2Log(celt_word32 amp) { return celt_log2(MAX32(QCONST32(.001f,14),SHL32(amp,2))); } static inline celt_word32 log2Amp(celt_word16 lg) { return PSHR32(celt_exp2(SHL16(lg,11-DB_SHIFT)),4); } int *quant_prob_alloc(const CELTMode *m); void quant_prob_free(int *freq); void compute_fine_allocation(const CELTMode *m, int *bits, int budget); int intra_decision(celt_word16 *eBands, celt_word16 *oldEBands, int len); unsigned quant_coarse_energy(const CELTMode *m, int start, celt_word16 *eBands, celt_word16 *oldEBands, int budget, int intra, int *prob, celt_word16 *error, ec_enc *enc, int _C); void quant_fine_energy(const CELTMode *m, int start, celt_ener *eBands, celt_word16 *oldEBands, celt_word16 *error, int *fine_quant, ec_enc *enc, int _C); void quant_energy_finalise(const CELTMode *m, int start, celt_ener *eBands, celt_word16 *oldEBands, celt_word16 *error, int *fine_quant, int *fine_priority, int bits_left, ec_enc *enc, int _C); void unquant_coarse_energy(const CELTMode *m, int start, celt_ener *eBands, celt_word16 *oldEBands, int budget, int intra, int *prob, ec_dec *dec, int _C); void unquant_fine_energy(const CELTMode *m, int start, celt_ener *eBands, celt_word16 *oldEBands, int *fine_quant, ec_dec *dec, int _C); void unquant_energy_finalise(const CELTMode *m, int start, celt_ener *eBands, celt_word16 *oldEBands, int *fine_quant, int *fine_priority, int bits_left, ec_dec *dec, int _C); #endif /* QUANT_BANDS */