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#ifndef __CUDACODEC_VIDEO_SOURCE_H__
#define __CUDACODEC_VIDEO_SOURCE_H__

#include "thread.hpp"

namespace cv { namespace cudacodec { namespace detail {

class VideoParser;

class VideoSource
{
public:
    virtual ~VideoSource() {}

    virtual FormatInfo format() const = 0;
    virtual void updateFormat(const int codedWidth, const int codedHeight) = 0;
    virtual void start() = 0;
    virtual void stop() = 0;
    virtual bool isStarted() const = 0;
    virtual bool hasError() const = 0;

    void setVideoParser(detail::VideoParser* videoParser) { videoParser_ = videoParser; }

protected:
    bool parseVideoData(const uchar* data, size_t size, bool endOfStream = false);

private:
    detail::VideoParser* videoParser_;
};

class RawVideoSourceWrapper : public VideoSource
{
public:
    RawVideoSourceWrapper(const Ptr<RawVideoSource>& source);

    FormatInfo format() const CV_OVERRIDE;
    void updateFormat(const int codedWidth, const int codedHeight) CV_OVERRIDE;
    void start() CV_OVERRIDE;
    void stop() CV_OVERRIDE;
    bool isStarted() const CV_OVERRIDE;
    bool hasError() const CV_OVERRIDE;

private:
    Ptr<RawVideoSource> source_;

    Ptr<Thread> thread_;
    volatile bool stop_;
    volatile bool hasError_;

    static void readLoop(void* userData);
};

}}}

#endif // __CUDACODEC_VIDEO_SOURCE_H__
