Libav
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00001 /* 00002 * MPEG-4 Audio common header 00003 * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@free.fr> 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVCODEC_MPEG4AUDIO_H 00023 #define AVCODEC_MPEG4AUDIO_H 00024 00025 #include <stdint.h> 00026 #include "get_bits.h" 00027 #include "put_bits.h" 00028 00029 typedef struct { 00030 int object_type; 00031 int sampling_index; 00032 int sample_rate; 00033 int chan_config; 00034 int sbr; //< -1 implicit, 1 presence 00035 int ext_object_type; 00036 int ext_sampling_index; 00037 int ext_sample_rate; 00038 int ext_chan_config; 00039 int channels; 00040 int ps; //< -1 implicit, 1 presence 00041 } MPEG4AudioConfig; 00042 00043 extern const int ff_mpeg4audio_sample_rates[16]; 00044 extern const uint8_t ff_mpeg4audio_channels[8]; 00052 int ff_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf, int buf_size); 00053 00054 enum AudioObjectType { 00055 AOT_NULL, 00056 // Support? Name 00057 AOT_AAC_MAIN, 00058 AOT_AAC_LC, 00059 AOT_AAC_SSR, 00060 AOT_AAC_LTP, 00061 AOT_SBR, 00062 AOT_AAC_SCALABLE, 00063 AOT_TWINVQ, 00064 AOT_CELP, 00065 AOT_HVXC, 00066 AOT_TTSI = 12, 00067 AOT_MAINSYNTH, 00068 AOT_WAVESYNTH, 00069 AOT_MIDI, 00070 AOT_SAFX, 00071 AOT_ER_AAC_LC, 00072 AOT_ER_AAC_LTP = 19, 00073 AOT_ER_AAC_SCALABLE, 00074 AOT_ER_TWINVQ, 00075 AOT_ER_BSAC, 00076 AOT_ER_AAC_LD, 00077 AOT_ER_CELP, 00078 AOT_ER_HVXC, 00079 AOT_ER_HILN, 00080 AOT_ER_PARAM, 00081 AOT_SSC, 00082 AOT_PS, 00083 AOT_SURROUND, 00084 AOT_ESCAPE, 00085 AOT_L1, 00086 AOT_L2, 00087 AOT_L3, 00088 AOT_DST, 00089 AOT_ALS, 00090 AOT_SLS, 00091 AOT_SLS_NON_CORE, 00092 AOT_ER_AAC_ELD, 00093 AOT_SMR_SIMPLE, 00094 AOT_SMR_MAIN, 00095 AOT_USAC_NOSBR, 00096 AOT_SAOC, 00097 AOT_LD_SURROUND, 00098 AOT_USAC, 00099 }; 00100 00101 #define MAX_PCE_SIZE 304 ///<Maximum size of a PCE including the 3-bit ID_PCE 00102 00103 00104 int ff_copy_pce_data(PutBitContext *pb, GetBitContext *gb); 00105 00106 #endif /* AVCODEC_MPEG4AUDIO_H */