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| MemoryMappedAiffReader (const File &f, const AiffAudioFormatReader &reader) |
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bool | readSamples (int **destSamples, int numDestChannels, int startOffsetInDestBuffer, int64 startSampleInFile, int numSamples) override |
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void | getSample (int64 sample, float *result) const noexceptoverride |
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void | readMaxLevels (int64 startSampleInFile, int64 numSamples, Range< float > *results, int numChannelsToRead) override |
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const File & | getFile () const noexcept |
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bool | mapEntireFile () |
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bool | mapSectionOfFile (Range< int64 > samplesToMap) |
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Range< int64 > | getMappedSection () const noexcept |
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void | touchSample (int64 sample) const noexcept |
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size_t | getNumBytesUsed () const |
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virtual | ~AudioFormatReader () |
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const String & | getFormatName () const noexcept |
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bool | read (int *const *destSamples, int numDestChannels, int64 startSampleInSource, int numSamplesToRead, bool fillLeftoverChannelsWithCopies) |
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void | read (AudioSampleBuffer *buffer, int startSampleInDestBuffer, int numSamples, int64 readerStartSample, bool useReaderLeftChan, bool useReaderRightChan) |
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virtual void | readMaxLevels (int64 startSample, int64 numSamples, float &lowestLeft, float &highestLeft, float &lowestRight, float &highestRight) |
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int64 | searchForLevel (int64 startSample, int64 numSamplesToSearch, double magnitudeRangeMinimum, double magnitudeRangeMaximum, int minimumConsecutiveSamples) |
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double | sampleRate |
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unsigned int | bitsPerSample |
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int64 | lengthInSamples |
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unsigned int | numChannels |
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bool | usesFloatingPointData |
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StringPairArray | metadataValues |
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InputStream * | input |
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| MemoryMappedAudioFormatReader (const File &file, const AudioFormatReader &details, int64 dataChunkStart, int64 dataChunkLength, int bytesPerFrame) |
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int64 | sampleToFilePos (int64 sample) const noexcept |
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int64 | filePosToSample (int64 filePos) const noexcept |
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const void * | sampleToPointer (int64 sample) const noexcept |
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template<typename SampleType , typename Endianness > |
Range< float > | scanMinAndMaxInterleaved (int channel, int64 startSampleInFile, int64 numSamples) const noexcept |
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| AudioFormatReader (InputStream *sourceStream, const String &formatName) |
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static void | clearSamplesBeyondAvailableLength (int **destSamples, int numDestChannels, int startOffsetInDestBuffer, int64 startSampleInFile, int &numSamples, int64 fileLengthInSamples) |
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File | file |
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Range< int64 > | mappedSection |
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ScopedPointer< MemoryMappedFile > | map |
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int64 | dataChunkStart |
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int64 | dataLength |
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int | bytesPerFrame |
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void MemoryMappedAiffReader::getSample |
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int64 |
sampleIndex, |
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float * |
result |
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) |
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inlineoverridevirtualnoexcept |
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 MemoryMappedAudioFormatReader.
void MemoryMappedAiffReader::readMaxLevels |
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int64 |
startSample, |
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int64 |
numSamples, |
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Range< float > * |
results, |
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int |
numChannelsToRead |
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) |
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inlineoverridevirtual |
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
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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 AudioFormatReader.
bool MemoryMappedAiffReader::readSamples |
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int ** |
destSamples, |
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int |
numDestChannels, |
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int |
startOffsetInDestBuffer, |
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int64 |
startSampleInFile, |
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int |
numSamples |
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) |
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inlineoverridevirtual |
Subclasses must implement this method to perform the low-level read operation.
Callers should use read() instead of calling this directly.
- Parameters
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destSamples | the array of destination buffers to fill. Some of these pointers may be null |
numDestChannels | the number of items in the destSamples 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 AudioFormatReader.
The documentation for this class was generated from the following file: