mirror of https://github.com/mpv-player/mpv
253 lines
8.1 KiB
C
253 lines
8.1 KiB
C
/*
|
|
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
|
|
** Copyright (C) 2003-2004 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.
|
|
**
|
|
** Commercial non-GPL licensing of this software is possible.
|
|
** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
|
|
**
|
|
** $Id: neaacdec.h,v 1.5 2004/09/04 14:56:27 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 "2.1 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
|