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JUCE/modules/juce_audio_utils/players/juce_AudioProcessorPlayer.h

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/*
==============================================================================
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_AUDIOPROCESSORPLAYER_JUCEHEADER__
#define __JUCE_AUDIOPROCESSORPLAYER_JUCEHEADER__
#include "../../juce_audio_processors/processors/juce_AudioProcessor.h"
//==============================================================================
/**
An AudioIODeviceCallback object which streams audio through an AudioProcessor.
To use one of these, just make it the callback used by your AudioIODevice, and
give it a processor to use by calling setProcessor().
It's also a MidiInputCallback, so you can connect it to both an audio and midi
input to send both streams through the processor.
@see AudioProcessor, AudioProcessorGraph
*/
class JUCE_API AudioProcessorPlayer : public AudioIODeviceCallback,
public MidiInputCallback
{
public:
//==============================================================================
AudioProcessorPlayer();
/** Destructor. */
virtual ~AudioProcessorPlayer();
//==============================================================================
/** Sets the processor that should be played.
The processor that is passed in will not be deleted or owned by this object.
To stop anything playing, pass in 0 to this method.
*/
void setProcessor (AudioProcessor* processorToPlay);
/** Returns the current audio processor that is being played.
*/
AudioProcessor* getCurrentProcessor() const { return processor; }
/** Returns a midi message collector that you can pass midi messages to if you
want them to be injected into the midi stream that is being sent to the
processor.
*/
MidiMessageCollector& getMidiMessageCollector() { return messageCollector; }
//==============================================================================
/** @internal */
void audioDeviceIOCallback (const float** inputChannelData,
int totalNumInputChannels,
float** outputChannelData,
int totalNumOutputChannels,
int numSamples);
/** @internal */
void audioDeviceAboutToStart (AudioIODevice* device);
/** @internal */
void audioDeviceStopped();
/** @internal */
void handleIncomingMidiMessage (MidiInput* source, const MidiMessage& message);
private:
//==============================================================================
AudioProcessor* processor;
CriticalSection lock;
double sampleRate;
int blockSize;
bool isPrepared;
int numInputChans, numOutputChans;
float* channels [128];
AudioSampleBuffer tempBuffer;
MidiBuffer incomingMidi;
MidiMessageCollector messageCollector;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (AudioProcessorPlayer);
};
#endif // __JUCE_AUDIOPROCESSORPLAYER_JUCEHEADER__