mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-02-05 03:50:07 +00:00
111 lines
4.4 KiB
C++
111 lines
4.4 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library - "Jules' Utility Class Extensions"
|
|
Copyright 2004-11 by Raw Material Software Ltd.
|
|
|
|
------------------------------------------------------------------------------
|
|
|
|
JUCE can be redistributed and/or modified under the terms of the GNU General
|
|
Public License (Version 2), as published by the Free Software Foundation.
|
|
A copy of the license is included in the JUCE distribution, or can be found
|
|
online at www.gnu.org/licenses.
|
|
|
|
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
|
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
|
|
|
------------------------------------------------------------------------------
|
|
|
|
To release a closed-source product which uses JUCE, commercial licenses are
|
|
available: visit www.rawmaterialsoftware.com/juce for more information.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
#ifndef __JUCE_AUDIOFORMATREADERSOURCE_JUCEHEADER__
|
|
#define __JUCE_AUDIOFORMATREADERSOURCE_JUCEHEADER__
|
|
|
|
#include "juce_PositionableAudioSource.h"
|
|
#include "../../threads/juce_Thread.h"
|
|
#include "../audio_file_formats/juce_AudioFormatReader.h"
|
|
#include "../dsp/juce_AudioSampleBuffer.h"
|
|
#include "../../memory/juce_OptionalScopedPointer.h"
|
|
|
|
|
|
//==============================================================================
|
|
/**
|
|
A type of AudioSource that will read from an AudioFormatReader.
|
|
|
|
@see PositionableAudioSource, AudioTransportSource, BufferingAudioSource
|
|
*/
|
|
class JUCE_API AudioFormatReaderSource : public PositionableAudioSource
|
|
{
|
|
public:
|
|
//==============================================================================
|
|
/** Creates an AudioFormatReaderSource for a given reader.
|
|
|
|
@param sourceReader the reader to use as the data source - this must
|
|
not be null
|
|
@param deleteReaderWhenThisIsDeleted if true, the reader passed-in will be deleted
|
|
when this object is deleted; if false it will be
|
|
left up to the caller to manage its lifetime
|
|
*/
|
|
AudioFormatReaderSource (AudioFormatReader* sourceReader,
|
|
bool deleteReaderWhenThisIsDeleted);
|
|
|
|
/** Destructor. */
|
|
~AudioFormatReaderSource();
|
|
|
|
//==============================================================================
|
|
/** Toggles loop-mode.
|
|
|
|
If set to true, it will continuously loop the input source. If false,
|
|
it will just emit silence after the source has finished.
|
|
|
|
@see isLooping
|
|
*/
|
|
void setLooping (bool shouldLoop);
|
|
|
|
/** Returns whether loop-mode is turned on or not. */
|
|
bool isLooping() const { return looping; }
|
|
|
|
/** Returns the reader that's being used. */
|
|
AudioFormatReader* getAudioFormatReader() const noexcept { return reader; }
|
|
|
|
//==============================================================================
|
|
/** Implementation of the AudioSource method. */
|
|
void prepareToPlay (int samplesPerBlockExpected, double sampleRate);
|
|
|
|
/** Implementation of the AudioSource method. */
|
|
void releaseResources();
|
|
|
|
/** Implementation of the AudioSource method. */
|
|
void getNextAudioBlock (const AudioSourceChannelInfo& bufferToFill);
|
|
|
|
//==============================================================================
|
|
/** Implements the PositionableAudioSource method. */
|
|
void setNextReadPosition (int64 newPosition);
|
|
|
|
/** Implements the PositionableAudioSource method. */
|
|
int64 getNextReadPosition() const;
|
|
|
|
/** Implements the PositionableAudioSource method. */
|
|
int64 getTotalLength() const;
|
|
|
|
private:
|
|
//==============================================================================
|
|
OptionalScopedPointer<AudioFormatReader> reader;
|
|
|
|
int64 volatile nextPlayPos;
|
|
bool volatile looping;
|
|
|
|
void readBufferSection (int start, int length, AudioSampleBuffer& buffer, int startSample);
|
|
|
|
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioFormatReaderSource);
|
|
};
|
|
|
|
|
|
|
|
|
|
#endif // __JUCE_AUDIOFORMATREADERSOURCE_JUCEHEADER__
|