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YUVinYUVoverlay.hpp

00001  /***********************************************************************
00002  *                                                                      *
00003  * ViTooKi                                                              *
00004  *                                                                      *
00005  * title: YUVinYUVoverlay.hpp                                           *
00006  *                                                                      *
00007  *                                                                      *
00008  *                                                                      *
00009  * ITEC institute of the University of Klagenfurt (Austria)             *
00010  * http://www.itec.uni-klu.ac.at                                        *
00011  *                                                                      *
00012  *                                                                      *
00013  * For more information visit the ViTooKi homepage:                     *
00014  * http://ViTooKi.sourceforge.net                                       *
00015  * vitooki-user@lists.sourceforge.net                                   *
00016  * vitooki-devel@lists.sourceforge.net                                  *
00017  *                                                                      *
00018  * This file is part of ViTooKi, a free video toolkit.                  *
00019  * ViTooKi is free software; you can redistribute it and/or             *
00020  * modify it under the terms of the GNU General Public License          *
00021  * as published by the Free Software Foundation; either version 2       *
00022  * of the License, or (at your option) any later version.               *
00023  *                                                                      *
00024  * This program is distributed in the hope that it will be useful,      *
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00027  * GNU General Public License for more details.                         *
00028  *                                                                      *
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00033  *                                                                      *
00034  ***********************************************************************/
00035 
00036  /***********************************************************************
00037  *                                                                      *
00038  *  REVISION HISTORY:                                                   *
00039  *                                                                      *
00040  *                                                                      *
00041  *                                                                      *
00042  ***********************************************************************/
00043 
00044 #ifndef _YUVinYUVoverlay_HPP
00045 #define _YUVinYUVoverlay_HPP
00046 #include "VideoAdaptor.hpp"
00047 #include "VideoESInfo.hpp"
00048 #include "io/YUVStreamIO.hpp"
00049 #include "io/DevNull.hpp"
00050 
00051 
00067 class YUVinYUVoverlay : public VideoAdaptor {
00068 public:
00069 
00070         /* Constructor
00071          * @param watermarkStream defines th IO class for writing the output
00072          * @param loopWatermark if set to <code>true</code>, the watermarkStream is replayed forever
00073          * @param x and y depict the coordiates, where the watermarkStream should be overlayed
00074          *
00075          */
00076         YUVinYUVoverlay(VideoESInfo* esi, YUVStreamIO *watermarkStream, int x, int  y, bool loopWatermark = true);
00077         
00078         virtual ~YUVinYUVoverlay();
00079         
00080         list < Frame * >adapt(Frame * frm);
00081         
00082         Adaptor* clone() { return new YUVinYUVoverlay(es, (YUVStreamIO*)waterStream->clone(), posX, posY, loopWatermark); };
00083 
00084         void initialize();
00085         
00086         list < Frame * >close() {
00087                 list < Frame * >tmp;
00088                 return tmp;
00089         };
00090 
00095         void setESInfo(ESInfo * esi);
00096 
00097         ESInfo * getESInfo();
00098 
00103         u32 getTranscodingCosts() const {
00104                 return es->getAvgBandwidth()/8;
00105         }
00106 
00107 private:
00108 protected:
00109         VideoESInfo *es;
00110   YUVStreamIO *waterStream;
00111         int posX, posY;
00112         bool loopWatermark;
00113         AU lastAU;
00114         u8* lastPayload;
00115         UncompressedVideoFrame *waterFrame;
00116         int numFrames;
00117 };
00118 #endif
00119