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| 2 | #ifndef HEADER_GUARD_OSGFFMPEG_FFMPEG_IMAGE_STREAM_H |
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| 3 | #define HEADER_GUARD_OSGFFMPEG_FFMPEG_IMAGE_STREAM_H |
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| 4 | |
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| 5 | #include <osg/ImageStream> |
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| 6 | |
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| 7 | #include <OpenThreads/Condition> |
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| 8 | #include <OpenThreads/Thread> |
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| 9 | |
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| 10 | #include "FFmpegDecoder.hpp" |
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| 11 | #include "MessageQueue.hpp" |
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| 12 | |
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| 13 | namespace osgFFmpeg |
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| 14 | { |
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| 15 | |
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| 16 | template <class T> |
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| 17 | class MessageQueue; |
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| 18 | |
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| 19 | class FFmpegImageStream : public osg::ImageStream, public OpenThreads::Thread |
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| 20 | { |
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| 21 | public: |
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| 22 | |
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| 23 | FFmpegImageStream(); |
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| 24 | FFmpegImageStream(const FFmpegImageStream & image, const osg::CopyOp & copyop = osg::CopyOp::SHALLOW_COPY); |
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| 25 | |
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| 26 | META_Object(osgFFmpeg, FFmpegImageStream); |
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| 27 | |
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| 28 | bool open(const std::string & filename); |
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| 29 | |
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| 30 | virtual void play(); |
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| 31 | virtual void pause(); |
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| 32 | virtual void rewind(); |
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| 33 | virtual void seek(double time); |
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| 34 | virtual void quit(bool waitForThreadToExit = true); |
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| 35 | |
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| 36 | virtual double getLength() const; |
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| 37 | virtual double getFrameRate() const; |
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| 38 | |
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| 39 | virtual bool isImageTranslucent() const; |
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| 40 | |
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| 41 | private: |
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| 42 | |
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| 43 | enum Command |
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| 44 | { |
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| 45 | CMD_PLAY, |
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| 46 | CMD_PAUSE, |
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| 47 | CMD_STOP, |
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| 48 | CMD_REWIND, |
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| 49 | CMD_SEEK |
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| 50 | }; |
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| 51 | |
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| 52 | typedef MessageQueue<Command> CommandQueue; |
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| 53 | typedef OpenThreads::Mutex Mutex; |
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| 54 | typedef OpenThreads::Condition Condition; |
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| 55 | |
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| 56 | virtual ~FFmpegImageStream(); |
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| 57 | virtual void run(); |
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| 58 | virtual void applyLoopingMode(); |
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| 59 | |
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| 60 | bool handleCommand(Command cmd); |
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| 61 | |
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| 62 | void cmdPlay(); |
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| 63 | void cmdPause(); |
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| 64 | void cmdRewind(); |
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| 65 | void cmdSeek(double time); |
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| 66 | |
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| 67 | static void publishNewFrame(const FFmpegDecoderVideo &, void * user_data); |
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| 68 | |
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| 69 | osg::ref_ptr<FFmpegDecoder> m_decoder; |
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| 70 | CommandQueue * m_commands; |
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| 71 | |
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| 72 | Mutex m_mutex; |
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| 73 | Condition m_frame_published_cond; |
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| 74 | bool m_frame_published_flag; |
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| 75 | double m_seek_time; |
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| 76 | }; |
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| 77 | |
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| 78 | } |
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| 79 | |
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| 80 | |
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| 81 | |
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| 82 | #endif // HEADER_GUARD_OSGFFMPEG_FFMPEG_IMAGE_STREAM_H |
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