neaacdec.h
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- /*
- ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
- ** Copyright (C) 2003-2005 M. Bakker, Ahead Software 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.
- **
- ** Software using this code must display the following message visibly in the
- ** software:
- ** "FAAD2 AAC/HE-AAC/HE-AACv2/DRM decoder (c) Ahead Software, www.nero.com"
- ** in, for example, the about-box or help/startup screen.
- **
- ** Commercial non-GPL licensing of this software is possible.
- ** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
- **
- ** $Id: neaacdec.h,v 1.3 2005/11/01 21:41:43 gabest 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 "2.1 beta"
- /* 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
- /* 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