/*
 * This file is part of uniaud.dll.
 *
 * Copyright (c) 2010 Mensys BV
 * Copyright (c) 2007 Vlad Stelmahovsky aka Vladest
 *
 * This library 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 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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 and the GNU General Public License along with this library.
 * If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __resample__
#define __resample__

#include <stdint.h>

#define FELEM int16_t
#define FELEM2 int32_t
#define FELEM_MAX INT16_MAX
#define FELEM_MIN INT16_MIN

typedef struct AVResampleContext{
    FELEM *filter_bank;
    int filter_length;
    int ideal_dst_incr;
    int dst_incr;
    int index;
    int frac;
    int src_incr;
    int compensation_distance;
    int phase_shift;
    int phase_mask;
    int linear;
}AVResampleContext;

typedef struct ReSampleContext {
    struct AVResampleContext *resample_context;
    short *temp[2];
    int temp_len;
    float ratio;
    /* channel convert */
    int input_channels, output_channels, filter_channels;
}/* ReSampleContext*/;

struct ReSampleContext *audio_resample_init(int output_channels, int input_channels,
                                      int output_rate, int input_rate);

int audio_resample(struct ReSampleContext *s, short *output, short *input, int nb_samples);

void audio_resample_close(struct ReSampleContext *s);
AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_size, int phase_shift, int linear, double cutoff);
void av_resample_close(AVResampleContext *c);
int av_resample(AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);

#endif /* __resample__ */