SFML - Simple and Fast Multimedia Library

SFML

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 //
 // SFML - Simple and Fast Multimedia Library
 // Copyright (C) 2007-2017 Laurent Gomila ([email protected])
 //
 // This software is provided 'as-is', without any express or implied warranty.
 // In no event will the authors be held liable for any damages arising from the use of this software.
 //
 // Permission is granted to anyone to use this software for any purpose,
 // including commercial applications, and to alter it and redistribute it freely,
 // subject to the following restrictions:
 //
 // 1. The origin of this software must not be misrepresented;
 //    you must not claim that you wrote the original software.
 //    If you use this software in a product, an acknowledgment
 //    in the product documentation would be appreciated but is not required.
 //
 // 2. Altered source versions must be plainly marked as such,
 //    and must not be misrepresented as being the original software.
 //
 // 3. This notice may not be removed or altered from any source distribution.
 //
 
 #ifndef SFML_SOUNDSTREAM_HPP
 #define SFML_SOUNDSTREAM_HPP
 
 // Headers
 #include <SFML/Audio/Export.hpp>
 #include <SFML/Audio/SoundSource.hpp>
 #include <SFML/System/Thread.hpp>
 #include <SFML/System/Time.hpp>
 #include <SFML/System/Mutex.hpp>
 #include <cstdlib>
 
 
 namespace sf
 {
 class SFML_AUDIO_API SoundStream : public SoundSource
 {
 public:
 
     struct Chunk
     {
         const Int16* samples;     
         std::size_t  sampleCount; 
     };
 
     virtual ~SoundStream();
 
     void play();
 
     void pause();
 
     void stop();
 
     unsigned int getChannelCount() const;
 
     unsigned int getSampleRate() const;
 
     Status getStatus() const;
 
     void setPlayingOffset(Time timeOffset);
 
     Time getPlayingOffset() const;
 
     void setLoop(bool loop);
 
     bool getLoop() const;
 
 protected:
 
     SoundStream();
 
     void initialize(unsigned int channelCount, unsigned int sampleRate);
 
     virtual bool onGetData(Chunk& data) = 0;
 
     virtual void onSeek(Time timeOffset) = 0;
 
 private:
 
     void streamData();
 
     bool fillAndPushBuffer(unsigned int bufferNum);
 
     bool fillQueue();
 
     void clearQueue();
 
     enum
     {
         BufferCount = 3 
     };
 
     // Member data
  Thread        m_thread;                  
     mutable Mutex m_threadMutex;             
     Status        m_threadStartState;        
     bool          m_isStreaming;             
     unsigned int  m_buffers[BufferCount];    
     unsigned int  m_channelCount;            
     unsigned int  m_sampleRate;              
     Uint32        m_format;                  
     bool          m_loop;                    
     Uint64        m_samplesProcessed;        
     bool          m_endBuffers[BufferCount]; 
 };
 
 } // namespace sf
 
 
 #endif // SFML_SOUNDSTREAM_HPP
 
 
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