mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-29 22:40:23 +00:00
94 lines
5.0 KiB
C
94 lines
5.0 KiB
C
/*
|
|
* MPEG-4 Audio common header
|
|
* Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@free.fr>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_MPEG4AUDIO_H
|
|
#define AVCODEC_MPEG4AUDIO_H
|
|
|
|
#include <stdint.h>
|
|
|
|
typedef struct {
|
|
int object_type;
|
|
int sampling_index;
|
|
int sample_rate;
|
|
int chan_config;
|
|
int sbr; //< -1 implicit, 1 presence
|
|
int ext_object_type;
|
|
int ext_sampling_index;
|
|
int ext_sample_rate;
|
|
int ext_chan_config;
|
|
} MPEG4AudioConfig;
|
|
|
|
extern const int ff_mpeg4audio_sample_rates[16];
|
|
extern const uint8_t ff_mpeg4audio_channels[8];
|
|
/**
|
|
* Parse MPEG-4 systems extradata to retrieve audio configuration.
|
|
* @param[in] c MPEG4AudioConfig structure to fill.
|
|
* @param[in] buf Extradata from container.
|
|
* @param[in] buf_size Extradata size.
|
|
* @return On error -1 is returned, on success AudioSpecificConfig bit index in extradata.
|
|
*/
|
|
int ff_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf, int buf_size);
|
|
|
|
enum AudioObjectType {
|
|
AOT_NULL,
|
|
// Support? Name
|
|
AOT_AAC_MAIN, ///< Y Main
|
|
AOT_AAC_LC, ///< Y Low Complexity
|
|
AOT_AAC_SSR, ///< N (code in SoC repo) Scalable Sample Rate
|
|
AOT_AAC_LTP, ///< N (code in SoC repo) Long Term Prediction
|
|
AOT_SBR, ///< N (in progress) Spectral Band Replication
|
|
AOT_AAC_SCALABLE, ///< N Scalable
|
|
AOT_TWINVQ, ///< N Twin Vector Quantizer
|
|
AOT_CELP, ///< N Code Excited Linear Prediction
|
|
AOT_HVXC, ///< N Harmonic Vector eXcitation Coding
|
|
AOT_TTSI = 12, ///< N Text-To-Speech Interface
|
|
AOT_MAINSYNTH, ///< N Main Synthesis
|
|
AOT_WAVESYNTH, ///< N Wavetable Synthesis
|
|
AOT_MIDI, ///< N General MIDI
|
|
AOT_SAFX, ///< N Algorithmic Synthesis and Audio Effects
|
|
AOT_ER_AAC_LC, ///< N Error Resilient Low Complexity
|
|
AOT_ER_AAC_LTP = 19, ///< N Error Resilient Long Term Prediction
|
|
AOT_ER_AAC_SCALABLE, ///< N Error Resilient Scalable
|
|
AOT_ER_TWINVQ, ///< N Error Resilient Twin Vector Quantizer
|
|
AOT_ER_BSAC, ///< N Error Resilient Bit-Sliced Arithmetic Coding
|
|
AOT_ER_AAC_LD, ///< N Error Resilient Low Delay
|
|
AOT_ER_CELP, ///< N Error Resilient Code Excited Linear Prediction
|
|
AOT_ER_HVXC, ///< N Error Resilient Harmonic Vector eXcitation Coding
|
|
AOT_ER_HILN, ///< N Error Resilient Harmonic and Individual Lines plus Noise
|
|
AOT_ER_PARAM, ///< N Error Resilient Parametric
|
|
AOT_SSC, ///< N SinuSoidal Coding
|
|
AOT_PS, ///< N Parametric Stereo
|
|
AOT_SURROUND, ///< N MPEG Surround
|
|
AOT_ESCAPE, ///< N Escape Value
|
|
AOT_L1, ///< Y Layer 1
|
|
AOT_L2, ///< Y Layer 2
|
|
AOT_L3, ///< Y Layer 3
|
|
AOT_DST, ///< N Direct Stream Transfer
|
|
AOT_ALS, ///< N Audio LosslesS
|
|
AOT_SLS, ///< N Scalable LosslesS
|
|
AOT_SLS_NON_CORE, ///< N Scalable LosslesS (non core)
|
|
AOT_ER_AAC_ELD, ///< N Error Resilient Enhanced Low Delay
|
|
AOT_SMR_SIMPLE, ///< N Symbolic Music Representation Simple
|
|
AOT_SMR_MAIN, ///< N Symbolic Music Representation Main
|
|
};
|
|
|
|
#endif /* AVCODEC_MPEG4AUDIO_H */
|