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78 lines
2.8 KiB
78 lines
2.8 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef JUCE_POSITIONABLEAUDIOSOURCE_H_INCLUDED
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#define JUCE_POSITIONABLEAUDIOSOURCE_H_INCLUDED
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//==============================================================================
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/**
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A type of AudioSource which can be repositioned.
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The basic AudioSource just streams continuously with no idea of a current
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time or length, so the PositionableAudioSource is used for a finite stream
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that has a current read position.
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@see AudioSource, AudioTransportSource
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*/
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class JUCE_API PositionableAudioSource : public AudioSource
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{
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protected:
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//==============================================================================
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/** Creates the PositionableAudioSource. */
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PositionableAudioSource() noexcept {}
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public:
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/** Destructor */
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~PositionableAudioSource() {}
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//==============================================================================
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/** Tells the stream to move to a new position.
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Calling this indicates that the next call to AudioSource::getNextAudioBlock()
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should return samples from this position.
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Note that this may be called on a different thread to getNextAudioBlock(),
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so the subclass should make sure it's synchronised.
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*/
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virtual void setNextReadPosition (int64 newPosition) = 0;
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/** Returns the position from which the next block will be returned.
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@see setNextReadPosition
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*/
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virtual int64 getNextReadPosition() const = 0;
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/** Returns the total length of the stream (in samples). */
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virtual int64 getTotalLength() const = 0;
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/** Returns true if this source is actually playing in a loop. */
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virtual bool isLooping() const = 0;
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/** Tells the source whether you'd like it to play in a loop. */
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virtual void setLooping (bool shouldLoop) { (void) shouldLoop; }
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};
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#endif // JUCE_POSITIONABLEAUDIOSOURCE_H_INCLUDED
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