FFmpeg/libavcodec/opus_pvq.h

/*
 * Copyright (c) 2012 Andrew D'Addesio
 * Copyright (c) 2013-2014 Mozilla Corporation
 * Copyright (c) 2016 Rostislav Pehlivanov <atomnuker@gmail.com>
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVCODEC_OPUS_PVQ_H
#define AVCODEC_OPUS_PVQ_H

#include "opus_celt.h"

#define QUANT_FN(name) uint32_t (name)(struct CeltPVQ *pvq, CeltFrame *f,            \
                                       OpusRangeCoder *rc, const int band, float *X, \
                                       float *Y, int N, int b, uint32_t blocks,      \
                                       float *lowband, int duration,                 \
                                       float *lowband_out, int level, float gain,    \
                                       float *lowband_scratch, int fill)

struct CeltPVQ {
    DECLARE_ALIGNED(32, int,   qcoeff      )[176];
    DECLARE_ALIGNED(32, float, hadamard_tmp)[176];

    float (*pvq_search)(float *X, int *y, int K, int N);

    QUANT_FN(*decode_band);
    QUANT_FN(*encode_band);
    float (*band_cost)(struct CeltPVQ *pvq, CeltFrame *f, OpusRangeCoder *rc,
                       int band, float *bits, float lambda);
};

int  ff_celt_pvq_init  (struct CeltPVQ **pvq);
void ff_celt_pvq_uninit(struct CeltPVQ **pvq);

#endif /* AVCODEC_OPUS_PVQ_H */