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RawStreamIO.hpp

00001  /***********************************************************************
00002  *                                                                      *
00003  * ViTooKi                                                              *
00004  *                                                                      *
00005  * title:       RawStreamIO.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,      *
00025  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
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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 _MK_RAWSTREAMIO_HPP_
00045 #define _MK_RAWSTREAMIO_HPP_
00046 
00047 #include "IO.hpp"
00048 #include "global.hpp"
00049 
00061 class RawStreamIO:public IO {
00062 public:
00063         /* If writeonly is true only write access
00064          * is permitted, otherwise the file is read-only, url is deep-copied
00065          */
00066         RawStreamIO(ESInfo * es, const char *file, bool writeOnly);
00067 
00068         virtual ~ RawStreamIO();
00069 
00070 
00071         /* absolutely needed for <code>getFrame</code>
00072          * @param size gives the bytesize of one frame
00073          */
00074         void setFrameSize(u32 size);
00075         
00080         virtual Frame *getFrame();
00081         
00083         virtual int writeFrame(Frame * frm, ESInfo *out_es =  NULL);
00084         
00088         bool open();
00089 
00090         bool close(bool immediate=false);
00091 
00093         bool destroy();
00094         
00096         int getBufferFillLevel() const {
00097                 return 50;
00098         };
00099         
00100         IO *clone() const { return new RawStreamIO(es,url,writeOnly);};
00101         
00103         const char *getURL() const {
00104                 return url;
00105         };
00106 
00114         bool setToFrameNumber(u32 frameNumber);
00115 
00116         void setESInfo(ESInfo * esi) {es=esi; };
00117 
00118         ESInfo* getESInfo() { return es; };             
00119 
00120 private:
00121 protected:
00122         FILE *io;
00123         char *url;
00124         bool writeOnly;
00125         ESInfo *es;
00126         bool atFileStart;
00127         long lastCTSSeen;
00128         u64 frameSize;
00129 };
00130 
00131 #endif