mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-12 10:15:22 +00:00
65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/*
|
|
* a52.h
|
|
* Copyright (C) 2000-2002 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef A52_H
|
|
#define A52_H
|
|
|
|
#include "../avcodec.h"
|
|
|
|
#ifndef LIBA52_DOUBLE
|
|
typedef float sample_t;
|
|
#else
|
|
typedef double sample_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,
|
|
sample_t * level, sample_t bias);
|
|
void a52_dynrng (a52_state_t * state,
|
|
sample_t (* call) (sample_t, void *), void * data);
|
|
int a52_block (a52_state_t * state);
|
|
void a52_free (a52_state_t * state);
|
|
|
|
#endif /* A52_H */
|