AIFF.h

/*
     File:       AIFF.h
 
     Contains:   Definition of AIFF file format components.
 
     Version:    Technology: System 8.5
                 Release:    Universal Interfaces 3.4
 
     Copyright:  © 1989-2001 by Apple Computer, Inc., all rights reserved.
 
     Bugs?:      For bug reports, consult the following page on
                 the World Wide Web:
 
                     http://developer.apple.com/bugreporter/
 
*/
#ifndef __AIFF__
#define __AIFF__

#ifndef __MACTYPES__
#include <MacTypes.h>
#endif




#if PRAGMA_ONCE
#pragma once
#endif

#ifdef __cplusplus
extern "C" {
#endif

#if PRAGMA_IMPORT
#pragma import on
#endif

#if PRAGMA_STRUCT_ALIGN
    #pragma options align=mac68k
#elif PRAGMA_STRUCT_PACKPUSH
    #pragma pack(push, 2)
#elif PRAGMA_STRUCT_PACK
    #pragma pack(2)
#endif

enum {
  AIFFID                        = FOUR_CHAR_CODE('AIFF'),
  AIFCID                        = FOUR_CHAR_CODE('AIFC'),
  FormatVersionID               = FOUR_CHAR_CODE('FVER'),
  CommonID                      = FOUR_CHAR_CODE('COMM'),
  FORMID                        = FOUR_CHAR_CODE('FORM'),
  SoundDataID                   = FOUR_CHAR_CODE('SSND'),
  MarkerID                      = FOUR_CHAR_CODE('MARK'),
  InstrumentID                  = FOUR_CHAR_CODE('INST'),
  MIDIDataID                    = FOUR_CHAR_CODE('MIDI'),
  AudioRecordingID              = FOUR_CHAR_CODE('AESD'),
  ApplicationSpecificID         = FOUR_CHAR_CODE('APPL'),
  CommentID                     = FOUR_CHAR_CODE('COMT'),
  NameID                        = FOUR_CHAR_CODE('NAME'),
  AuthorID                      = FOUR_CHAR_CODE('AUTH'),
  CopyrightID                   = FOUR_CHAR_CODE('(c) '),
  AnnotationID                  = FOUR_CHAR_CODE('ANNO')
};

enum {
  NoLooping                     = 0,
  ForwardLooping                = 1,
  ForwardBackwardLooping        = 2
};

enum {
                                        /* AIFF-C Versions */
  AIFCVersion1                  = (long)0xA2805140
};

/* Compression Names */
#define NoneName                        "\pnot compressed"
#define ACE2to1Name                     "\pACE 2-to-1"
#define ACE8to3Name                     "\pACE 8-to-3"
#define MACE3to1Name                    "\pMACE 3-to-1"
#define MACE6to1Name                    "\pMACE 6-to-1"
enum {
                                        /* Compression Types */
  NoneType                      = FOUR_CHAR_CODE('NONE'),
  ACE2Type                      = FOUR_CHAR_CODE('ACE2'),
  ACE8Type                      = FOUR_CHAR_CODE('ACE8'),
  MACE3Type                     = FOUR_CHAR_CODE('MAC3'),
  MACE6Type                     = FOUR_CHAR_CODE('MAC6')
};

typedef unsigned long                   ID;
typedef short                           MarkerIdType;
struct ChunkHeader {
  ID                  ckID;
  long                ckSize;
};
typedef struct ChunkHeader              ChunkHeader;
struct ContainerChunk {
  ID                  ckID;
  long                ckSize;
  ID                  formType;
};
typedef struct ContainerChunk           ContainerChunk;
struct FormatVersionChunk {
  ID                  ckID;
  long                ckSize;
  unsigned long       timestamp;
};
typedef struct FormatVersionChunk       FormatVersionChunk;
typedef FormatVersionChunk *            FormatVersionChunkPtr;
struct CommonChunk {
  ID                  ckID;
  long                ckSize;
  short               numChannels;
  unsigned long       numSampleFrames;
  short               sampleSize;
  extended80          sampleRate;
};
typedef struct CommonChunk              CommonChunk;
typedef CommonChunk *                   CommonChunkPtr;
struct ExtCommonChunk {
  ID                  ckID;
  long                ckSize;
  short               numChannels;
  unsigned long       numSampleFrames;
  short               sampleSize;
  extended80          sampleRate;
  ID                  compressionType;
  char                compressionName[1];     /* variable length array, Pascal string */
};
typedef struct ExtCommonChunk           ExtCommonChunk;
typedef ExtCommonChunk *                ExtCommonChunkPtr;
struct SoundDataChunk {
  ID                  ckID;
  long                ckSize;
  unsigned long       offset;
  unsigned long       blockSize;
};
typedef struct SoundDataChunk           SoundDataChunk;
typedef SoundDataChunk *                SoundDataChunkPtr;
struct Marker {
  MarkerIdType        id;
  unsigned long       position;
  Str255              markerName;
};
typedef struct Marker                   Marker;
struct MarkerChunk {
  ID                  ckID;
  long                ckSize;
  unsigned short      numMarkers;
  Marker              Markers[1];             /* variable length array */
};
typedef struct MarkerChunk              MarkerChunk;
typedef MarkerChunk *                   MarkerChunkPtr;
struct AIFFLoop {
  short               playMode;
  MarkerIdType        beginLoop;
  MarkerIdType        endLoop;
};
typedef struct AIFFLoop                 AIFFLoop;
struct InstrumentChunk {
  ID                  ckID;
  long                ckSize;
  UInt8               baseFrequency;
  UInt8               detune;
  UInt8               lowFrequency;
  UInt8               highFrequency;
  UInt8               lowVelocity;
  UInt8               highVelocity;
  short               gain;
  AIFFLoop            sustainLoop;
  AIFFLoop            releaseLoop;
};
typedef struct InstrumentChunk          InstrumentChunk;
typedef InstrumentChunk *               InstrumentChunkPtr;
struct MIDIDataChunk {
  ID                  ckID;
  long                ckSize;
  UInt8               MIDIdata[1];            /* variable length array */
};
typedef struct MIDIDataChunk            MIDIDataChunk;
typedef MIDIDataChunk *                 MIDIDataChunkPtr;
struct AudioRecordingChunk {
  ID                  ckID;
  long                ckSize;
  UInt8               AESChannelStatus[24];
};
typedef struct AudioRecordingChunk      AudioRecordingChunk;
typedef AudioRecordingChunk *           AudioRecordingChunkPtr;
struct ApplicationSpecificChunk {
  ID                  ckID;
  long                ckSize;
  OSType              applicationSignature;
  UInt8               data[1];                /* variable length array */
};
typedef struct ApplicationSpecificChunk ApplicationSpecificChunk;
typedef ApplicationSpecificChunk *      ApplicationSpecificChunkPtr;
struct Comment {
  unsigned long       timeStamp;
  MarkerIdType        marker;
  unsigned short      count;
  char                text[1];                /* variable length array, Pascal string */
};
typedef struct Comment                  Comment;
struct CommentsChunk {
  ID                  ckID;
  long                ckSize;
  unsigned short      numComments;
  Comment             comments[1];            /* variable length array */
};
typedef struct CommentsChunk            CommentsChunk;
typedef CommentsChunk *                 CommentsChunkPtr;
struct TextChunk {
  ID                  ckID;
  long                ckSize;
  char                text[1];                /* variable length array, Pascal string */
};
typedef struct TextChunk                TextChunk;
typedef TextChunk *                     TextChunkPtr;

#if PRAGMA_STRUCT_ALIGN
    #pragma options align=reset
#elif PRAGMA_STRUCT_PACKPUSH
    #pragma pack(pop)
#elif PRAGMA_STRUCT_PACK
    #pragma pack()
#endif

#ifdef PRAGMA_IMPORT_OFF
#pragma import off
#elif PRAGMA_IMPORT
#pragma import reset
#endif

#ifdef __cplusplus
}
#endif

#endif /* __AIFF__ */