Inheritance diagram for juce::MemoryMappedAiffReader:

Public Member Functions
	MemoryMappedAiffReader (const File &f, const AiffAudioFormatReader &reader)

bool	readSamples (int const destSamples, int numDestChannels, int startOffsetInDestBuffer, int64 startSampleInFile, int numSamples) override
	Subclasses must implement this method to perform the low-level read operation.

void	getSample (int64 sample, float *result) const noexcept override
	Returns the samples for all channels at a given sample position.

void	readMaxLevels (int64 startSampleInFile, int64 numSamples, Range< float > *results, int numChannelsToRead) override
	Finds the highest and lowest sample levels from a section of the audio stream.

virtual void	readMaxLevels (int64 startSample, int64 numSamples, Range< float > *results, int numChannelsToRead)
	Finds the highest and lowest sample levels from a section of the audio stream.

virtual void	readMaxLevels (int64 startSample, int64 numSamples, float &lowestLeft, float &highestLeft, float &lowestRight, float &highestRight)
	Finds the highest and lowest sample levels from a section of the audio stream.

Public Member Functions inherited from juce::MemoryMappedAudioFormatReader
const File &	getFile () const noexcept
	Returns the file that is being mapped.

bool	mapEntireFile ()
	Attempts to map the entire file into memory.

virtual bool	mapSectionOfFile (Range< int64 > samplesToMap)
	Attempts to map a section of the file into memory.

Range< int64 >	getMappedSection () const noexcept
	Returns the sample range that's currently memory-mapped and available for reading.

void	touchSample (int64 sample) const noexcept
	Touches the memory for the given sample, to force it to be loaded into active memory.

size_t	getNumBytesUsed () const
	Returns the number of bytes currently being mapped.

Public Member Functions inherited from juce::AudioFormatReader
virtual	~AudioFormatReader ()
	Destructor.

const String &	getFormatName () const noexcept
	Returns a description of what type of format this is.

bool	read (float const destChannels, int numDestChannels, int64 startSampleInSource, int numSamplesToRead)
	Reads samples from the stream.

bool	read (int const destChannels, int numDestChannels, int64 startSampleInSource, int numSamplesToRead, bool fillLeftoverChannelsWithCopies)
	Reads samples from the stream.

bool	read (AudioBuffer< float > *buffer, int startSampleInDestBuffer, int numSamples, int64 readerStartSample, bool useReaderLeftChan, bool useReaderRightChan)
	Fills a section of an AudioBuffer from this reader.

int64	searchForLevel (int64 startSample, int64 numSamplesToSearch, double magnitudeRangeMinimum, double magnitudeRangeMaximum, int minimumConsecutiveSamples)
	Scans the source looking for a sample whose magnitude is in a specified range.

virtual AudioChannelSet	getChannelLayout ()
	Get the channel layout of the audio stream.

Additional Inherited Members
Public Attributes inherited from juce::AudioFormatReader
double	sampleRate
	The sample-rate of the stream.

unsigned int	bitsPerSample
	The number of bits per sample, e.g.

int64	lengthInSamples
	The total number of samples in the audio stream.

unsigned int	numChannels
	The total number of channels in the audio stream.

bool	usesFloatingPointData
	Indicates whether the data is floating-point or fixed.

StringPairArray	metadataValues
	A set of metadata values that the reader has pulled out of the stream.

InputStream *	input
	The input stream, for use by subclasses.

Protected Member Functions inherited from juce::MemoryMappedAudioFormatReader
	MemoryMappedAudioFormatReader (const File &file, const AudioFormatReader &details, int64 dataChunkStart, int64 dataChunkLength, int bytesPerFrame)
	Creates an MemoryMappedAudioFormatReader object.

int64	sampleToFilePos (int64 sample) const noexcept
	Converts a sample index to a byte position in the file.

int64	filePosToSample (int64 filePos) const noexcept
	Converts a byte position in the file to a sample index.

const void *	sampleToPointer (int64 sample) const noexcept
	Converts a sample index to a pointer to the mapped file memory.

template<typename SampleType , typename Endianness >
Range< float >	scanMinAndMaxInterleaved (int channel, int64 startSampleInFile, int64 numSamples) const noexcept
	Used by AudioFormatReader subclasses to scan for min/max ranges in interleaved data.

Protected Member Functions inherited from juce::AudioFormatReader
	AudioFormatReader (InputStream *sourceStream, const String &formatName)
	Creates an AudioFormatReader object.

Static Protected Member Functions inherited from juce::AudioFormatReader
static void	clearSamplesBeyondAvailableLength (int const destChannels, int numDestChannels, int startOffsetInDestBuffer, int64 startSampleInFile, int &numSamples, int64 fileLengthInSamples)
	Used by AudioFormatReader subclasses to clear any parts of the data blocks that lie beyond the end of their available length.

Protected Attributes inherited from juce::MemoryMappedAudioFormatReader
File	file

Range< int64 >	mappedSection

std::unique_ptr< MemoryMappedFile >	map

int64	dataChunkStart

int64	dataLength

int	bytesPerFrame

Detailed Description

Definition at line 821 of file juce_AiffAudioFormat.cpp.

Constructor & Destructor Documentation

◆ MemoryMappedAiffReader()

juce::MemoryMappedAiffReader::MemoryMappedAiffReader	(	const File &	f,
		const AiffAudioFormatReader &	reader
	)

Definition at line 824 of file juce_AiffAudioFormat.cpp.

Member Function Documentation

◆ getSample()

void juce::MemoryMappedAiffReader::getSample	(	int64	sampleIndex,
		float *	result
	)		const

overridevirtualnoexcept

Returns the samples for all channels at a given sample position.

The result array must be large enough to hold a value for each channel that this reader contains.

Implements juce::MemoryMappedAudioFormatReader.

Definition at line 858 of file juce_AiffAudioFormat.cpp.

◆ readMaxLevels() [1/3]

void juce::AudioFormatReader::readMaxLevels	(	int64	startSample,
		int64	numSamples,
		float &	lowestLeft,
		float &	highestLeft,
		float &	lowestRight,
		float &	highestRight
	)

virtual

Finds the highest and lowest sample levels from a section of the audio stream.

This will read a block of samples from the stream, and measure the highest and lowest sample levels from the channels in that section, returning these as normalised floating-point levels.

Parameters

startSample	the offset into the audio stream to start reading from. It's ok for this to be beyond the start or end of the stream.
numSamples	how many samples to read
lowestLeft	on return, this is the lowest absolute sample from the left channel
highestLeft	on return, this is the highest absolute sample from the left channel
lowestRight	on return, this is the lowest absolute sample from the right channel (if there is one)
highestRight	on return, this is the highest absolute sample from the right channel (if there is one)

See also: read

Reimplemented from juce::AudioFormatReader.

Definition at line 190 of file juce_AudioFormatReader.cpp.

◆ readMaxLevels() [2/3]

void juce::AudioFormatReader::readMaxLevels	(	int64	startSample,
		int64	numSamples,
		Range< float > *	results,
		int	numChannelsToRead
	)

virtual

Finds the highest and lowest sample levels from a section of the audio stream.

This will read a block of samples from the stream, and measure the highest and lowest sample levels from the channels in that section, returning these as normalised floating-point levels.

Parameters

startSample	the offset into the audio stream to start reading from. It's ok for this to be beyond the start or end of the stream.
numSamples	how many samples to read
results	this array will be filled with Range values for each channel. The array must contain numChannels elements.
numChannelsToRead	the number of channels of data to scan. This must be more than zero, but not more than the total number of channels that the reader contains

See also: read

Reimplemented from juce::AudioFormatReader.

Definition at line 170 of file juce_AudioFormatReader.cpp.

◆ readMaxLevels() [3/3]

void juce::MemoryMappedAiffReader::readMaxLevels	(	int64	startSample,
		int64	numSamples,
		Range< float > *	results,
		int	numChannelsToRead
	)

overridevirtual

Finds the highest and lowest sample levels from a section of the audio stream.

This will read a block of samples from the stream, and measure the highest and lowest sample levels from the channels in that section, returning these as normalised floating-point levels.

Parameters

startSample	the offset into the audio stream to start reading from. It's ok for this to be beyond the start or end of the stream.
numSamples	how many samples to read
results	this array will be filled with Range values for each channel. The array must contain numChannels elements.
numChannelsToRead	the number of channels of data to scan. This must be more than zero, but not more than the total number of channels that the reader contains

See also: read

Reimplemented from juce::AudioFormatReader.

Definition at line 901 of file juce_AiffAudioFormat.cpp.

◆ readSamples()

bool juce::MemoryMappedAiffReader::readSamples	(	int const	destChannels,
		int	numDestChannels,
		int	startOffsetInDestBuffer,
		int64	startSampleInFile,
		int	numSamples
	)

overridevirtual

Subclasses must implement this method to perform the low-level read operation.

Callers should use read() instead of calling this directly.

Parameters

destChannels	the array of destination buffers to fill. Some of these pointers may be null
numDestChannels	the number of items in the destChannels array. This value is guaranteed not to be greater than the number of channels that this reader object contains
startOffsetInDestBuffer	the number of samples from the start of the dest data at which to begin writing
startSampleInFile	the number of samples into the source data at which to begin reading. This value is guaranteed to be >= 0.
numSamples	the number of samples to read

Implements juce::AudioFormatReader.

Definition at line 831 of file juce_AiffAudioFormat.cpp.

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

juce_audio_formats/codecs/juce_AiffAudioFormat.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MemoryMappedAiffReader()

Member Function Documentation

◆ getSample()

◆ readMaxLevels() [1/3]

◆ readMaxLevels() [2/3]

◆ readMaxLevels() [3/3]

◆ readSamples()