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  • AviMemDc: a C++ class

    AviMemDc: a C++ class
            
    This class is used in the Avi Examples.
    The header file
    AviMemDC.h

    /*
       AviMemDC.h

       A C++ class for creating avi files

       Copyright (c) 2004, 2005 René Nyffenegger

       This source code is provided 'as-is', without any express or implied
       warranty. In no event will the author 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 source code must not be misrepresented; you must not
          claim that you wrote the original source code. If you use this source code
          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 source code.

       3. This notice may not be removed or altered from any source distribution.

       René Nyffenegger rene.nyffenegger@adp-gmbh.ch

    */

    #include "MemoryDC.h"
    #include "DibSection.h"
    #include "Color.h"
    #include "Font.h"
    #include "avi.h"

    class AviMemDC : public MemoryDC {

      public:
        AviMemDC(int width, int height, std::string const& avi_file, int frames_per_second);

        void AddFrame();

        DibSection& GetDibSection();

      private:
        DibSection dib_section_;
        Avi        avi_;

        bool       compression_chosen_;
    };

    The implementation file
    AviMemDC.cpp

    /*
       AviMemDC.cpp

       A C++ class for creating avi files

       Copyright (c) 2004, 2005 René Nyffenegger

       This source code is provided 'as-is', without any express or implied
       warranty. In no event will the author 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 source code must not be misrepresented; you must not
          claim that you wrote the original source code. If you use this source code
          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 source code.

       3. This notice may not be removed or altered from any source distribution.

       René Nyffenegger rene.nyffenegger@adp-gmbh.ch

    */

    #include "AviMemDC.h"

    AviMemDC::AviMemDC(int width, int height, std::string const& avi_file, int frames_per_second) :
      MemoryDC(),
      dib_section_(width, height),
      avi_(avi_file, 1000/frames_per_second, 0),
      compression_chosen_(false)
    {
      Select(dib_section_);
    }

    void AviMemDC::AddFrame() {
      if (!compression_chosen_) {
        avi_.compression(dib_section_, 0, true, 0);
        compression_chosen_ = true;
      }
      avi_.add_frame(dib_section_);
    }

    DibSection& AviMemDC::GetDibSection() {
      return dib_section_;
    }

     

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  • 原文地址:https://www.cnblogs.com/honeynm/p/4695857.html
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