81 lines
2.6 KiB
Plaintext
81 lines
2.6 KiB
Plaintext
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/* -*-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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namespace osg {
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/** Pure virtual AudioSinkInterface bass class that is used to connect the audio system with AudioStreams. */
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class OSG_EXPORT AudioSinkInterface : public osg::Object
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{
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public:
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AudioSinkInterface();
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virtual void startPlaying() = 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 const char * libraryName() const { return "osgFFmpeg"; }
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virtual const char * className() const { return "AudioSinkInterface"; }
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private:
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virtual AudioSinkInterface * cloneType() const { return 0; }
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virtual AudioSinkInterface * 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::AudioSinkInterface* audio_sink) = 0;
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virtual void consumeAudioBuffer(void * const buffer, const size_t size) = 0;
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virtual bool audioStream() const = 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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