PeerStreamer

/*

 * a52.h

 * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org>

 * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>

 *

 * This file is part of a52dec, a free ATSC A-52 stream decoder.

 * See http://liba52.sourceforge.net/ for updates.

 *

 * a52dec is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * a52dec 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 General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

#ifndef A52_H

#define A52_H

#include "../avcodec.h"

#undef malloc

#undef free

#undef realloc

#if defined(LIBA52_FIXED)

typedef int32_t sample_t;

typedef int32_t level_t;

#elif defined(LIBA52_DOUBLE)

typedef double sample_t;

typedef double level_t;

#else

typedef float sample_t;

typedef float level_t;

#endif

typedef struct a52_state_s a52_state_t;

#define A52_CHANNEL 0

#define A52_MONO 1

#define A52_STEREO 2

#define A52_3F 3

#define A52_2F1R 4

#define A52_3F1R 5

#define A52_2F2R 6

#define A52_3F2R 7

#define A52_CHANNEL1 8

#define A52_CHANNEL2 9

#define A52_DOLBY 10

#define A52_CHANNEL_MASK 15

#define A52_LFE 16

#define A52_ADJUST_LEVEL 32

a52_state_t * a52_init (uint32_t mm_accel);

sample_t * a52_samples (a52_state_t * state);

int a52_syncinfo (uint8_t * buf, int * flags,

                  int * sample_rate, int * bit_rate);

int a52_frame (a52_state_t * state, uint8_t * buf, int * flags,

               level_t * level, sample_t bias);

void a52_dynrng (a52_state_t * state,

                 level_t (* call) (level_t, void *), void * data);

int a52_block (a52_state_t * state);

void a52_free (a52_state_t * state);

#endif /* A52_H */