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      1 /*M///////////////////////////////////////////////////////////////////////////////////////
      2 //
      3 //  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
      4 //
      5 //  By downloading, copying, installing or using the software you agree to this license.
      6 //  If you do not agree to this license, do not download, install,
      7 //  copy or use the software.
      8 //
      9 //
     10 //                          License Agreement
     11 //                For Open Source Computer Vision Library
     12 //
     13 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
     14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved.
     15 // Copyright (C) 2013, OpenCV Foundation, all rights reserved.
     16 // Third party copyrights are property of their respective owners.
     17 //
     18 // Redistribution and use in source and binary forms, with or without modification,
     19 // are permitted provided that the following conditions are met:
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     21 //   * Redistribution's of source code must retain the above copyright notice,
     22 //     this list of conditions and the following disclaimer.
     23 //
     24 //   * Redistribution's in binary form must reproduce the above copyright notice,
     25 //     this list of conditions and the following disclaimer in the documentation
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     28 //   * The name of the copyright holders may not be used to endorse or promote products
     29 //     derived from this software without specific prior written permission.
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     39 // or tort (including negligence or otherwise) arising in any way out of
     40 // the use of this software, even if advised of the possibility of such damage.
     41 //
     42 //M*/
     43 
     44 #ifndef __CUDACODEC_VIDEO_SOURCE_H__
     45 #define __CUDACODEC_VIDEO_SOURCE_H__
     46 
     47 #include "opencv2/core/private.cuda.hpp"
     48 #include "opencv2/cudacodec.hpp"
     49 #include "thread.hpp"
     50 
     51 namespace cv { namespace cudacodec { namespace detail
     52 {
     53 
     54 class VideoParser;
     55 
     56 class VideoSource
     57 {
     58 public:
     59     virtual ~VideoSource() {}
     60 
     61     virtual FormatInfo format() const = 0;
     62     virtual void start() = 0;
     63     virtual void stop() = 0;
     64     virtual bool isStarted() const = 0;
     65     virtual bool hasError() const = 0;
     66 
     67     void setVideoParser(detail::VideoParser* videoParser) { videoParser_ = videoParser; }
     68 
     69 protected:
     70     bool parseVideoData(const uchar* data, size_t size, bool endOfStream = false);
     71 
     72 private:
     73     detail::VideoParser* videoParser_;
     74 };
     75 
     76 class RawVideoSourceWrapper : public VideoSource
     77 {
     78 public:
     79     RawVideoSourceWrapper(const Ptr<RawVideoSource>& source);
     80 
     81     FormatInfo format() const;
     82     void start();
     83     void stop();
     84     bool isStarted() const;
     85     bool hasError() const;
     86 
     87 private:
     88     Ptr<RawVideoSource> source_;
     89 
     90     Ptr<Thread> thread_;
     91     volatile bool stop_;
     92     volatile bool hasError_;
     93 
     94     static void readLoop(void* userData);
     95 };
     96 
     97 }}}
     98 
     99 #endif // __CUDACODEC_VIDEO_SOURCE_H__
    100