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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2024 Members of the Gmerlin project
* http://github.com/bplaum
*
* This program 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.
*
* This program 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, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#ifndef BGAV_MPA_HEADER_H_INCLUDED
#define BGAV_MPA_HEADER_H_INCLUDED
typedef enum
{
MPEG_VERSION_NONE = 0,
MPEG_VERSION_1 = 1,
MPEG_VERSION_2 = 2,
MPEG_VERSION_2_5
} bgav_mpa_version_t;
#define CHANNEL_STEREO 0
#define CHANNEL_JSTEREO 1
#define CHANNEL_DUAL 2
#define CHANNEL_MONO 3
#define BGAV_MPA_MAX_FRAME_BYTES 2881
typedef struct
{
bgav_mpa_version_t version;
int layer;
int bitrate; /* -1: VBR */
int samplerate;
int frame_bytes;
int channel_mode;
int mode;
int samples_per_frame;
int has_crc;
int side_info_size;
} bgav_mpa_header_t;
int bgav_mpa_header_equal(bgav_mpa_header_t * h1, bgav_mpa_header_t * h2);
void bgav_mpa_header_dump(bgav_mpa_header_t * h);
int bgav_mpa_header_decode(bgav_mpa_header_t * h, uint8_t * ptr);
void bgav_mpa_header_get_format(const bgav_mpa_header_t * h,
gavl_audio_format_t * format);
#endif // BGAV_MPA_HEADER_H_INCLUDED
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