00001 /* 00002 * AAC ADTS header decoding prototypes and structures 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_AACADTSDEC_H 00024 #define AVCODEC_AACADTSDEC_H 00025 00026 #include <stdint.h> 00027 #include "get_bits.h" 00028 00029 #define AAC_ADTS_HEADER_SIZE 7 00030 00031 typedef struct { 00032 uint32_t sample_rate; 00033 uint32_t samples; 00034 uint32_t bit_rate; 00035 uint8_t crc_absent; 00036 uint8_t object_type; 00037 uint8_t sampling_index; 00038 uint8_t chan_config; 00039 uint8_t num_aac_frames; 00040 } AACADTSHeaderInfo; 00041 00052 int ff_aac_parse_header(GetBitContext *gbc, AACADTSHeaderInfo *hdr); 00053 00054 #endif /* AVCODEC_AACADTSDEC_H */
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