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libavcodec/aac_parser.h

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00001 /*
00002  * AAC parser prototypes
00003  * Copyright (c) 2003 Fabrice Bellard
00004  * Copyright (c) 2003 Michael Niedermayer
00005  *
00006  * This file is part of FFmpeg.
00007  *
00008  * FFmpeg is free software; you can redistribute it and/or
00009  * modify it under the terms of the GNU Lesser General Public
00010  * License as published by the Free Software Foundation; either
00011  * version 2.1 of the License, or (at your option) any later version.
00012  *
00013  * FFmpeg is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016  * Lesser General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU Lesser General Public
00019  * License along with FFmpeg; if not, write to the Free Software
00020  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00021  */
00022 
00023 #ifndef AVCODEC_AAC_PARSER_H
00024 #define AVCODEC_AAC_PARSER_H
00025 
00026 #include <stdint.h>
00027 #include "aac_ac3_parser.h"
00028 #include "get_bits.h"
00029 
00030 #define AAC_ADTS_HEADER_SIZE 7
00031 
00032 typedef struct {
00033     uint32_t sample_rate;
00034     uint32_t samples;
00035     uint32_t bit_rate;
00036     uint8_t  crc_absent;
00037     uint8_t  object_type;
00038     uint8_t  sampling_index;
00039     uint8_t  chan_config;
00040     uint8_t  num_aac_frames;
00041 } AACADTSHeaderInfo;
00042 
00053 int ff_aac_parse_header(GetBitContext *gbc, AACADTSHeaderInfo *hdr);
00054 
00055 #endif /* AVCODEC_AAC_PARSER_H */

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