EMIPLIB

mipyuv420framecutter.h

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00001 /*
00002     
00003   This file is a part of EMIPLIB, the EDM Media over IP Library.
00004   
00005   Copyright (C) 2006-2011  Hasselt University - Expertise Centre for
00006                       Digital Media (EDM) (http://www.edm.uhasselt.be)
00007 
00008   This library is free software; you can redistribute it and/or
00009   modify it under the terms of the GNU Lesser General Public
00010   License as published by the Free Software Foundation; either
00011   version 2.1 of the License, or (at your option) any later version.
00012 
00013   This library is distributed in the hope that it will be useful,
00014   but WITHOUT ANY WARRANTY; without even the implied warranty of
00015   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016   Lesser General Public License for more details.
00017 
00018   You should have received a copy of the GNU Lesser General Public
00019   License along with this library; if not, write to the Free Software
00020   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  
00021   USA
00022 
00023 */
00024 
00029 #ifndef MIPYUV420FRAMECUTTER_H
00030 
00031 #define MIPYUV420FRAMECUTTER_H
00032 
00033 #include "mipconfig.h"
00034 #include "mipcomponent.h"
00035 #include "miptime.h"
00036 #include <list>
00037 
00038 class MIPVideoMessage;
00039 
00045 class EMIPLIB_IMPORTEXPORT MIPYUV420FrameCutter : public MIPComponent
00046 {
00047 public:
00048         MIPYUV420FrameCutter();
00049         ~MIPYUV420FrameCutter();
00050 
00062         bool init(int inputWidth, int inputHeight,
00063                   int x0, int x1, int y0, int y1);
00064 
00066         bool destroy();
00067 
00068         bool push(const MIPComponentChain &chain, int64_t iteration, MIPMessage *pMsg);
00069         bool pull(const MIPComponentChain &chain, int64_t iteration, MIPMessage **pMsg);
00070 private:
00071         void clearMessages();
00072 
00073         bool m_init;
00074         std::list<MIPVideoMessage *> m_messages;
00075         std::list<MIPVideoMessage *>::const_iterator m_msgIt;
00076         int64_t m_lastIteration;
00077 
00078         int m_x0, m_x1, m_y0, m_y1;
00079         int m_inputWidth, m_inputHeight;
00080 };
00081 
00082 #endif // MIPYUV420FRAMECUTTER_H
00083