CmpSoundHeader Struct Reference

Data Fields
Ptr	samplePtr
unsigned long	numChannels
UnsignedFixed	sampleRate
unsigned long	loopStart
unsigned long	loopEnd
UInt8	encode
UInt8	baseFrequency
unsigned long	numFrames
extended80	AIFFSampleRate
Ptr	markerChunk
OSType	format
unsigned long	futureUse2
StateBlockPtr	stateVars
LeftOverBlockPtr	leftOverSamples
short	compressionID
unsigned short	packetSize
unsigned short	snthID
unsigned short	sampleSize
UInt8	sampleArea [1]

Field Documentation

AIFFSampleRate

extended80 CmpSoundHeader::AIFFSampleRate

length in frames ( packetFrames or sampleFrames )

baseFrequency

UInt8 CmpSoundHeader::baseFrequency

data structure used , stdSH, extSH, or cmpSH

compressionID

short CmpSoundHeader::compressionID

used to save truncated samples between compression calls

encode

UInt8 CmpSoundHeader::encode

loopEnd of sound before compression

format

OSType CmpSoundHeader::format

sync track

futureUse2

unsigned long CmpSoundHeader::futureUse2

data format type, was futureUse1

leftOverSamples

LeftOverBlockPtr CmpSoundHeader::leftOverSamples

pointer to State Block

loopEnd

unsigned long CmpSoundHeader::loopEnd

loopStart of sound before compression

loopStart

unsigned long CmpSoundHeader::loopStart

sample rate in Apples Fixed point representation

markerChunk

Ptr CmpSoundHeader::markerChunk

IEEE sample rate

numChannels

unsigned long CmpSoundHeader::numChannels

if nil then samples are in sample area

numFrames

unsigned long CmpSoundHeader::numFrames

same meaning as regular SoundHeader

packetSize

unsigned short CmpSoundHeader::packetSize

0 means no compression, non zero means compressionID

sampleArea

UInt8 CmpSoundHeader::sampleArea[1]

number of bits in non-compressed sample

sampleRate

UnsignedFixed CmpSoundHeader::sampleRate

number of channels i.e. mono = 1

sampleSize

unsigned short CmpSoundHeader::sampleSize

resource ID of Sound Manager snth that contains NRT C/E

snthID

unsigned short CmpSoundHeader::snthID

number of bits in compressed sample packet

stateVars

StateBlockPtr CmpSoundHeader::stateVars

reserved by Apple

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The documentation for this struct was generated from the following file:

• Sound.h