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86 lines
2.7 KiB
86 lines
2.7 KiB
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield |
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* |
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* This library is open source and may be redistributed and/or modified under |
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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* (at your option) any later version. The full license is in LICENSE file |
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* included with this distribution, and on the openscenegraph.org website. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* OpenSceneGraph Public License for more details. |
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*/ |
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#ifndef OSG_AUDIOSTREAM |
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#define OSG_AUDIOSTREAM 1 |
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#include <osg/Image> |
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#include <stdlib.h> |
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namespace osg { |
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/** Pure virtual AudioSink bass class that is used to connect the audio system with AudioStreams. */ |
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class OSG_EXPORT AudioSink : public osg::Object |
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{ |
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public: |
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AudioSink(); |
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virtual const char * libraryName() const { return "osg"; } |
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virtual const char * className() const { return "AudioSinkInterface"; } |
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virtual void play() = 0; |
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virtual void pause() = 0; |
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virtual void stop() = 0; |
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virtual bool playing() const = 0; |
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virtual double getDelay() const { return _delay; } |
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virtual void setDelay(const double delay) { _delay = delay; } |
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virtual void setVolume(float) {} |
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virtual float getVolume() const { return 0.0f; } |
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private: |
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virtual AudioSink * cloneType() const { return 0; } |
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virtual AudioSink * clone(const osg::CopyOp &) const { return 0; } |
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double _delay; |
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}; |
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/** Pure virtual AudioStream base class. Subclasses provide mechanism for reading/generating audio data*/ |
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class OSG_EXPORT AudioStream : public osg::Object |
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{ |
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public: |
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AudioStream(); |
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/** Copy constructor using CopyOp to manage deep vs shallow copy. */ |
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AudioStream(const AudioStream& audio,const CopyOp& copyop=CopyOp::SHALLOW_COPY); |
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const AudioStream*>(obj)!=0; } |
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virtual const char* libraryName() const { return "osg"; } |
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virtual const char* className() const { return "AudioStream"; } |
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virtual void setAudioSink(osg::AudioSink* audio_sink) = 0; |
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virtual void consumeAudioBuffer(void * const buffer, const size_t size) = 0; |
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virtual int audioFrequency() const = 0; |
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virtual int audioNbChannels() const = 0; |
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enum SampleFormat |
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{ |
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SAMPLE_FORMAT_U8, |
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SAMPLE_FORMAT_S16, |
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SAMPLE_FORMAT_S24, |
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SAMPLE_FORMAT_S32, |
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SAMPLE_FORMAT_F32 |
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}; |
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virtual SampleFormat audioSampleFormat() const = 0; |
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}; |
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} // namespace |
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#endif
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