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/*
* ac3.h
*
* Copyright (C) Aaron Holtzman - May 1999
*
* This file is part of ac3dec, a free Dolby AC-3 stream decoder.
*
* ac3dec 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, or (at your option)
* any later version.
*
* ac3dec 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
*/
#include <inttypes.h>
#define AC3_DOLBY_SURR_ENABLE 0x1
typedef struct ac3_config_s
{
//Bit flags that enable various things
uint32_t flags;
//Callback that points the decoder to new stream data
void (* fill_buffer_callback) (uint8_t **, uint8_t **);
//Number of discrete channels in final output (for downmixing)
uint16_t num_output_ch;
//Which channel of a dual mono stream to select
uint16_t dual_mono_ch_sel;
} ac3_config_t;
typedef struct ac3_frame_s
{
uint32_t sampling_rate;
int16_t * audio_data;
int num_channels;
} ac3_frame_t;
void ac3_init(void);
int ac3_frame_length(uint8_t * buf);
int ac3_sampling_rate(uint8_t * buf);
ac3_frame_t* ac3_decode_frame(uint8_t * buf, int max_num_channels);
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