From cc2160de5cc05dc3aa77f3a34358e66f6193c8c9 Mon Sep 17 00:00:00 2001 From: Michał Cichoń Date: Tue, 26 Jun 2012 20:35:30 +0200 Subject: Add support for AAC. --- faad2/src/include/neaacdec.h | 258 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 258 insertions(+) create mode 100644 faad2/src/include/neaacdec.h (limited to 'faad2/src/include/neaacdec.h') diff --git a/faad2/src/include/neaacdec.h b/faad2/src/include/neaacdec.h new file mode 100644 index 0000000..8290fac --- /dev/null +++ b/faad2/src/include/neaacdec.h @@ -0,0 +1,258 @@ +/* +** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding +** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com +** +** This program is free software; you can redistribute it and/or modify +** it under the terms of the GNU General Public License as published by +** the Free Software Foundation; either version 2 of the License, or +** (at your option) any later version. +** +** This program 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 General Public License for more details. +** +** You should have received a copy of the GNU General Public License +** along with this program; if not, write to the Free Software +** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +** +** Any non-GPL usage of this software or parts of this software is strictly +** forbidden. +** +** The "appropriate copyright message" mentioned in section 2c of the GPLv2 +** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" +** +** Commercial non-GPL licensing of this software is possible. +** For more info contact Nero AG through Mpeg4AAClicense@nero.com. +** +** $Id: neaacdec.h,v 1.13 2009/01/26 23:51:15 menno Exp $ +**/ + +#ifndef __NEAACDEC_H__ +#define __NEAACDEC_H__ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + + +#if 1 +/* MACROS FOR BACKWARDS COMPATIBILITY */ +/* structs */ +#define faacDecHandle NeAACDecHandle +#define faacDecConfiguration NeAACDecConfiguration +#define faacDecConfigurationPtr NeAACDecConfigurationPtr +#define faacDecFrameInfo NeAACDecFrameInfo +/* functions */ +#define faacDecGetErrorMessage NeAACDecGetErrorMessage +#define faacDecSetConfiguration NeAACDecSetConfiguration +#define faacDecGetCurrentConfiguration NeAACDecGetCurrentConfiguration +#define faacDecInit NeAACDecInit +#define faacDecInit2 NeAACDecInit2 +#define faacDecInitDRM NeAACDecInitDRM +#define faacDecPostSeekReset NeAACDecPostSeekReset +#define faacDecOpen NeAACDecOpen +#define faacDecClose NeAACDecClose +#define faacDecDecode NeAACDecDecode +#define AudioSpecificConfig NeAACDecAudioSpecificConfig +#endif + + +#ifdef _WIN32 + #pragma pack(push, 8) + #ifndef NEAACDECAPI + #define NEAACDECAPI __cdecl + #endif +#else + #ifndef NEAACDECAPI + #define NEAACDECAPI + #endif +#endif + +#define FAAD2_VERSION "2.7" + +/* object types for AAC */ +#define MAIN 1 +#define LC 2 +#define SSR 3 +#define LTP 4 +#define HE_AAC 5 +#define ER_LC 17 +#define ER_LTP 19 +#define LD 23 +#define DRM_ER_LC 27 /* special object type for DRM */ + +/* header types */ +#define RAW 0 +#define ADIF 1 +#define ADTS 2 +#define LATM 3 + +/* SBR signalling */ +#define NO_SBR 0 +#define SBR_UPSAMPLED 1 +#define SBR_DOWNSAMPLED 2 +#define NO_SBR_UPSAMPLED 3 + +/* library output formats */ +#define FAAD_FMT_16BIT 1 +#define FAAD_FMT_24BIT 2 +#define FAAD_FMT_32BIT 3 +#define FAAD_FMT_FLOAT 4 +#define FAAD_FMT_FIXED FAAD_FMT_FLOAT +#define FAAD_FMT_DOUBLE 5 + +/* Capabilities */ +#define LC_DEC_CAP (1<<0) /* Can decode LC */ +#define MAIN_DEC_CAP (1<<1) /* Can decode MAIN */ +#define LTP_DEC_CAP (1<<2) /* Can decode LTP */ +#define LD_DEC_CAP (1<<3) /* Can decode LD */ +#define ERROR_RESILIENCE_CAP (1<<4) /* Can decode ER */ +#define FIXED_POINT_CAP (1<<5) /* Fixed point */ + +/* Channel definitions */ +#define FRONT_CHANNEL_CENTER (1) +#define FRONT_CHANNEL_LEFT (2) +#define FRONT_CHANNEL_RIGHT (3) +#define SIDE_CHANNEL_LEFT (4) +#define SIDE_CHANNEL_RIGHT (5) +#define BACK_CHANNEL_LEFT (6) +#define BACK_CHANNEL_RIGHT (7) +#define BACK_CHANNEL_CENTER (8) +#define LFE_CHANNEL (9) +#define UNKNOWN_CHANNEL (0) + +/* DRM channel definitions */ +#define DRMCH_MONO 1 +#define DRMCH_STEREO 2 +#define DRMCH_SBR_MONO 3 +#define DRMCH_SBR_STEREO 4 +#define DRMCH_SBR_PS_STEREO 5 + + +/* A decode call can eat up to FAAD_MIN_STREAMSIZE bytes per decoded channel, + so at least so much bytes per channel should be available in this stream */ +#define FAAD_MIN_STREAMSIZE 768 /* 6144 bits/channel */ + + +typedef void *NeAACDecHandle; + +typedef struct mp4AudioSpecificConfig +{ + /* Audio Specific Info */ + unsigned char objectTypeIndex; + unsigned char samplingFrequencyIndex; + unsigned long samplingFrequency; + unsigned char channelsConfiguration; + + /* GA Specific Info */ + unsigned char frameLengthFlag; + unsigned char dependsOnCoreCoder; + unsigned short coreCoderDelay; + unsigned char extensionFlag; + unsigned char aacSectionDataResilienceFlag; + unsigned char aacScalefactorDataResilienceFlag; + unsigned char aacSpectralDataResilienceFlag; + unsigned char epConfig; + + char sbr_present_flag; + char forceUpSampling; + char downSampledSBR; +} mp4AudioSpecificConfig; + +typedef struct NeAACDecConfiguration +{ + unsigned char defObjectType; + unsigned long defSampleRate; + unsigned char outputFormat; + unsigned char downMatrix; + unsigned char useOldADTSFormat; + unsigned char dontUpSampleImplicitSBR; +} NeAACDecConfiguration, *NeAACDecConfigurationPtr; + +typedef struct NeAACDecFrameInfo +{ + unsigned long bytesconsumed; + unsigned long samples; + unsigned char channels; + unsigned char error; + unsigned long samplerate; + + /* SBR: 0: off, 1: on; upsample, 2: on; downsampled, 3: off; upsampled */ + unsigned char sbr; + + /* MPEG-4 ObjectType */ + unsigned char object_type; + + /* AAC header type; MP4 will be signalled as RAW also */ + unsigned char header_type; + + /* multichannel configuration */ + unsigned char num_front_channels; + unsigned char num_side_channels; + unsigned char num_back_channels; + unsigned char num_lfe_channels; + unsigned char channel_position[64]; + + /* PS: 0: off, 1: on */ + unsigned char ps; +} NeAACDecFrameInfo; + +char* NEAACDECAPI NeAACDecGetErrorMessage(unsigned char errcode); + +unsigned long NEAACDECAPI NeAACDecGetCapabilities(void); + +NeAACDecHandle NEAACDECAPI NeAACDecOpen(void); + +NeAACDecConfigurationPtr NEAACDECAPI NeAACDecGetCurrentConfiguration(NeAACDecHandle hDecoder); + +unsigned char NEAACDECAPI NeAACDecSetConfiguration(NeAACDecHandle hDecoder, + NeAACDecConfigurationPtr config); + +/* Init the library based on info from the AAC file (ADTS/ADIF) */ +long NEAACDECAPI NeAACDecInit(NeAACDecHandle hDecoder, + unsigned char *buffer, + unsigned long buffer_size, + unsigned long *samplerate, + unsigned char *channels); + +/* Init the library using a DecoderSpecificInfo */ +char NEAACDECAPI NeAACDecInit2(NeAACDecHandle hDecoder, + unsigned char *pBuffer, + unsigned long SizeOfDecoderSpecificInfo, + unsigned long *samplerate, + unsigned char *channels); + +/* Init the library for DRM */ +char NEAACDECAPI NeAACDecInitDRM(NeAACDecHandle *hDecoder, unsigned long samplerate, + unsigned char channels); + +void NEAACDECAPI NeAACDecPostSeekReset(NeAACDecHandle hDecoder, long frame); + +void NEAACDECAPI NeAACDecClose(NeAACDecHandle hDecoder); + +void* NEAACDECAPI NeAACDecDecode(NeAACDecHandle hDecoder, + NeAACDecFrameInfo *hInfo, + unsigned char *buffer, + unsigned long buffer_size); + +void* NEAACDECAPI NeAACDecDecode2(NeAACDecHandle hDecoder, + NeAACDecFrameInfo *hInfo, + unsigned char *buffer, + unsigned long buffer_size, + void **sample_buffer, + unsigned long sample_buffer_size); + +char NEAACDECAPI NeAACDecAudioSpecificConfig(unsigned char *pBuffer, + unsigned long buffer_size, + mp4AudioSpecificConfig *mp4ASC); + +#ifdef _WIN32 + #pragma pack(pop) +#endif + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif -- cgit v1.2.3