mirror of
https://github.com/mpv-player/mpv
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73829e43ab
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12626 b3059339-0415-0410-9bf9-f77b7e298cf2
223 lines
6.5 KiB
C
223 lines
6.5 KiB
C
/*
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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
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** Copyright (C) 2003 M. Bakker, Ahead Software AG, http://www.nero.com
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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**
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** Any non-GPL usage of this software or parts of this software is strictly
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** forbidden.
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**
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** Commercial non-GPL licensing of this software is possible.
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** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
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**
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** Initially modified for use with MPlayer by Arpad Gereöffy on 2003/08/30
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** $Id: faad.h,v 1.3 2004/06/02 22:59:02 diego Exp $
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** detailed CVS changelog at http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
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**/
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#ifndef __AACDEC_H__
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#define __AACDEC_H__
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#ifdef _WIN32
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#pragma pack(push, 8)
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#ifndef FAADAPI
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#define FAADAPI __cdecl
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#endif
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#else
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#ifndef FAADAPI
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#define FAADAPI
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#endif
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#endif
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#define FAAD2_VERSION "2.0"
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/* object types for AAC */
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#define MAIN 1
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#define LC 2
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#define SSR 3
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#define LTP 4
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#define HE_AAC 5
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#define ER_LC 17
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#define ER_LTP 19
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#define LD 23
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#define DRM_ER_LC 27 /* special object type for DRM */
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/* header types */
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#define RAW 0
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#define ADIF 1
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#define ADTS 2
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/* SBR signalling */
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#define NO_SBR 0
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#define SBR_UPSAMPLED 1
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#define SBR_DOWNSAMPLED 2
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#define NO_SBR_UPSAMPLED 3
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/* library output formats */
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#define FAAD_FMT_16BIT 1
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#define FAAD_FMT_24BIT 2
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#define FAAD_FMT_32BIT 3
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#define FAAD_FMT_FLOAT 4
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#define FAAD_FMT_DOUBLE 5
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#define FAAD_FMT_16BIT_DITHER 6
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#define FAAD_FMT_16BIT_L_SHAPE 7
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#define FAAD_FMT_16BIT_M_SHAPE 8
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#define FAAD_FMT_16BIT_H_SHAPE 9
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/* Capabilities */
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#define LC_DEC_CAP (1<<0)
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#define MAIN_DEC_CAP (1<<1)
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#define LTP_DEC_CAP (1<<2)
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#define LD_DEC_CAP (1<<3)
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#define ERROR_RESILIENCE_CAP (1<<4)
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#define FIXED_POINT_CAP (1<<5)
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/* Channel definitions */
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#define FRONT_CHANNEL_CENTER (1)
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#define FRONT_CHANNEL_LEFT (2)
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#define FRONT_CHANNEL_RIGHT (3)
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#define SIDE_CHANNEL_LEFT (4)
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#define SIDE_CHANNEL_RIGHT (5)
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#define BACK_CHANNEL_LEFT (6)
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#define BACK_CHANNEL_RIGHT (7)
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#define BACK_CHANNEL_CENTER (8)
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#define LFE_CHANNEL (9)
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#define UNKNOWN_CHANNEL (0)
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/* DRM channel definitions */
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#define DRMCH_MONO 1
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#define DRMCH_STEREO 2
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#define DRMCH_SBR_MONO 3
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#define DRMCH_SBR_LC_STEREO 4
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#define DRMCH_SBR_STEREO 5
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/* A decode call can eat up to FAAD_MIN_STREAMSIZE bytes per decoded channel,
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so at least so much bytes per channel should be available in this stream */
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#define FAAD_MIN_STREAMSIZE 768 /* 6144 bits/channel */
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typedef void *faacDecHandle;
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typedef struct mp4AudioSpecificConfig
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{
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/* Audio Specific Info */
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unsigned char objectTypeIndex;
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unsigned char samplingFrequencyIndex;
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unsigned long samplingFrequency;
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unsigned char channelsConfiguration;
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/* GA Specific Info */
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unsigned char frameLengthFlag;
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unsigned char dependsOnCoreCoder;
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unsigned short coreCoderDelay;
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unsigned char extensionFlag;
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unsigned char aacSectionDataResilienceFlag;
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unsigned char aacScalefactorDataResilienceFlag;
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unsigned char aacSpectralDataResilienceFlag;
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unsigned char epConfig;
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char sbr_present_flag;
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char forceUpSampling;
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} mp4AudioSpecificConfig;
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typedef struct faacDecConfiguration
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{
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unsigned char defObjectType;
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unsigned long defSampleRate;
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unsigned char outputFormat;
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unsigned char downMatrix;
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unsigned char useOldADTSFormat;
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} faacDecConfiguration, *faacDecConfigurationPtr;
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typedef struct faacDecFrameInfo
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{
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unsigned long bytesconsumed;
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unsigned long samples;
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unsigned char channels;
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unsigned char error;
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unsigned long samplerate;
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/* SBR: 0: off, 1: on; upsample, 2: on; downsampled, 3: off; upsampled */
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unsigned char sbr;
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/* MPEG-4 ObjectType */
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unsigned char object_type;
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/* AAC header type; MP4 will be signalled as RAW also */
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unsigned char header_type;
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/* multichannel configuration */
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unsigned char num_front_channels;
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unsigned char num_side_channels;
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unsigned char num_back_channels;
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unsigned char num_lfe_channels;
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unsigned char channel_position[64];
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} faacDecFrameInfo;
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char* FAADAPI faacDecGetErrorMessage(unsigned char errcode);
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unsigned long FAADAPI faacDecGetCapabilities();
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faacDecHandle FAADAPI faacDecOpen();
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faacDecConfigurationPtr FAADAPI faacDecGetCurrentConfiguration(faacDecHandle hDecoder);
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unsigned char FAADAPI faacDecSetConfiguration(faacDecHandle hDecoder,
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faacDecConfigurationPtr config);
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/* Init the library based on info from the AAC file (ADTS/ADIF) */
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long FAADAPI faacDecInit(faacDecHandle hDecoder,
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unsigned char *buffer,
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unsigned long buffer_size,
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unsigned long *samplerate,
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unsigned char *channels);
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/* Init the library using a DecoderSpecificInfo */
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char FAADAPI faacDecInit2(faacDecHandle hDecoder, unsigned char *pBuffer,
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unsigned long SizeOfDecoderSpecificInfo,
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unsigned long *samplerate, unsigned char *channels);
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/* Init the library for DRM */
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char FAADAPI faacDecInitDRM(faacDecHandle hDecoder, unsigned long samplerate,
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unsigned char channels);
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void FAADAPI faacDecPostSeekReset(faacDecHandle hDecoder, long frame);
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void FAADAPI faacDecClose(faacDecHandle hDecoder);
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void* FAADAPI faacDecDecode(faacDecHandle hDecoder,
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faacDecFrameInfo *hInfo,
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unsigned char *buffer,
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unsigned long buffer_size);
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char FAADAPI AudioSpecificConfig(unsigned char *pBuffer,
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unsigned long buffer_size,
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mp4AudioSpecificConfig *mp4ASC);
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#ifdef _WIN32
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#pragma pack(pop)
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#endif
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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