Loading...
Searching...
No Matches
juce_BufferingAudioFormatReader.h
/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2022 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 7 End-User License
Agreement and JUCE Privacy Policy.
End User License Agreement: www.juce.com/juce-7-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
namespace juce
{
//==============================================================================
class JUCE_API BufferingAudioReader : public AudioFormatReader,
private TimeSliceClient
{
public:
BufferingAudioReader (AudioFormatReader* sourceReader,
TimeSliceThread& timeSliceThread,
int samplesToBuffer);
~BufferingAudioReader() override;
void setReadTimeout (int timeoutMilliseconds) noexcept;
//==============================================================================
bool readSamples (int* const* destSamples, int numDestChannels, int startOffsetInDestBuffer,
int64 startSampleInFile, int numSamples) override;
private:
struct BufferedBlock
{
BufferedBlock (AudioFormatReader& reader, int64 pos, int numSamples);
Range<int64> range;
AudioBuffer<float> buffer;
bool allSamplesRead = false;
};
int useTimeSlice() override;
BufferedBlock* getBlockContaining (int64 pos) const noexcept;
bool readNextBufferChunk();
static constexpr int samplesPerBlock = 32768;
std::unique_ptr<AudioFormatReader> source;
TimeSliceThread& thread;
std::atomic<int64> nextReadPosition { 0 };
const int numBlocks;
int timeoutMs = 0;
CriticalSection lock;
OwnedArray<BufferedBlock> blocks;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (BufferingAudioReader)
};
} // namespace juce
juce::AudioBuffer
Definition juce_AudioSampleBuffer.h:34
juce::AudioFormatReader::AudioFormatReader
AudioFormatReader(InputStream *sourceStream, const String &formatName)
Definition juce_AudioFormatReader.cpp:29
juce::BufferingAudioReader::BufferingAudioReader
BufferingAudioReader(AudioFormatReader *sourceReader, TimeSliceThread &timeSliceThread, int samplesToBuffer)
Definition juce_BufferingAudioFormatReader.cpp:29
juce::BufferingAudioReader::setReadTimeout
void setReadTimeout(int timeoutMilliseconds) noexcept
Definition juce_BufferingAudioFormatReader.cpp:51
juce::BufferingAudioReader::readSamples
bool readSamples(int *const *destSamples, int numDestChannels, int startOffsetInDestBuffer, int64 startSampleInFile, int numSamples) override
Definition juce_BufferingAudioFormatReader.cpp:56
juce::CriticalSection
Definition juce_CriticalSection.h:43
juce::OwnedArray
Definition juce_OwnedArray.h:50
juce::Range
Definition juce_Range.h:40
juce::TimeSliceClient
Definition juce_TimeSliceThread.h:44