Main Page | Namespace List | Class Hierarchy | Alphabetical List | Class List | File List | Namespace Members | Class Members | File Members

IO.cpp

00001  /***********************************************************************
00002  *                                                                      *
00003  * ViTooKi                                                              *
00004  *                                                                      *
00005  * title:       IO.cpp                                                        *
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       *
00026  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the         *
00027  * GNU General Public License for more details.                         *
00028  *                                                                      *
00029  * You should have received a copy of the GNU General Public License    *
00030  * along with this program; if not, write to the Free Software          *
00031  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,               *
00032  * MA  02111-1307, USA.                                                 *
00033  *                                                                      *
00034  ***********************************************************************/
00035 
00036  /***********************************************************************
00037  *                                                                      *
00038  *  REVISION HISTORY:                                                   *
00039  *                                                                      *
00040  *                                                                      *
00041  *                                                                      *
00042  ***********************************************************************/
00043 
00044 #include "IO.hpp"
00045 char* sRTXState[]={"none","ack","nack","all"};
00046 
00047 IO::IO() {
00048         mutexStateChanged.initialize("mutexStateChanged");
00049 //      pthread_cond_init(&condStateChanged,NULL);
00050         state=CLOSED;
00051         framesSeen=0;
00052         currentFrameNumber=0;
00053         endFrameNumber=0;
00054 }
00055 
00056 
00057 IO::~IO() {
00058         mutexStateChanged.destroy();
00059 //      pthread_cond_destroy(&condStateChanged);
00060 }
00061 
00062 
00063 IO::State IO::setState(IO::State s) {
00064         mutexStateChanged.lock();
00065         state=s;
00066 //      pthread_cond_signal(&condStateChanged);
00067         mutexStateChanged.release();
00068         return state;
00069 }
00070 
00071 IO::State IO::play(double prefetchTime) {
00072 
00073         dprintf_full("IO::play prefetch %f (old state %i)\n",prefetchTime,state);
00074         
00075         if (state==CLOSED) {
00076                 open();
00077                 return state;
00078         } else
00079                 if ( (state==PAUSED) || (state==MUTED) ) 
00080                         setState(OPEN);
00081                 else {
00082                         dprintf_err("IO::play tried to OPEN from state %i\n",state);
00083                         return state;
00084                 }
00085         return state;
00086 }
00087 
00088 
00089 IO::State IO::pause() {
00090         
00091         dprintf_err("IO::pause (old state %i)\n",state);
00092         if (getState() == IO::OPEN || 
00093       getState()  == IO::OPENING || 
00094       getState()  == IO::CLOSING || 
00095       getState()  == IO::STREAMEOF || 
00096       getState()  == IO::MUTED)
00097     return setState(IO::PAUSED);
00098   else
00099     return getState();
00100         //      return (state==OPEN)?setState(PAUSED):state;
00101 }
00102 
00103 
00104 IO::State IO::mute() {
00105         dprintf_err("IO::mute (old state %i)\n",state);
00106         return (state==OPEN)?setState(MUTED):state;
00107 }
00108