PeerStreamer

/*

 * copyright (c) 2006 Oded Shimon <ods15@ods15.dyndns.org>

 *

 * 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 FFMPEG_VORBIS_H

#define FFMPEG_VORBIS_H

#include "avcodec.h"

extern const float ff_vorbis_floor1_inverse_db_table[256];

extern const float * ff_vorbis_vwin[8];

typedef struct {

    uint_fast16_t x;

    uint_fast16_t sort;

    uint_fast16_t low;

    uint_fast16_t high;

} floor1_entry_t;

void ff_vorbis_ready_floor1_list(floor1_entry_t * list, int values);

unsigned int ff_vorbis_nth_root(unsigned int x, unsigned int n); // x^(1/n)

int ff_vorbis_len2vlc(uint8_t *bits, uint32_t *codes, uint_fast32_t num);

void ff_vorbis_floor1_render_list(floor1_entry_t * list, int values, uint_fast16_t * y_list, int * flag, int multiplier, float * out, int samples);

#define ilog(i) av_log2(2*(i))

#endif /* FFMPEG_VORBIS_H */