Dear community, I hope in your help. I suppose I'm doing some errors with function pointer and I'm completely stopped on this point. When the program goes from the SingleStep Method to the ContinueAfterOption Method I see that the screenwidget variables loose their right value and feels as undefined.
Please, help me. I attach the Qt Project. -Antonio 2011/10/31 antonio nunziante <[email protected]> > Hi, > > i have the error the second time I call the method SingleStep(0) in my > doEventLoop() method. > > It occurs in this block of instructions (exactly at the instruction (* > handler->handlerProc)(handler->clientData, resultConditionSet) ) > > > if (handler == NULL && fLastHandledSocketNum >= 0) { > > // We didn't call a handler, but we didn't get to check all of them, > > // so try again from the beginning: > > iter.reset(); > > while ((handler = iter.next()) != NULL) { > > int sock = handler->socketNum; // alias > > int resultConditionSet = 0; > > if (FD_ISSET(sock, &readSet) && FD_ISSET(sock, &fReadSet)/*sanity > check*/) resultConditionSet |= SOCKET_READABLE; > > if (FD_ISSET(sock, &writeSet) && FD_ISSET(sock, &fWriteSet)/*sanity > check*/) resultConditionSet |= SOCKET_WRITABLE; > > if (FD_ISSET(sock, &exceptionSet) && FD_ISSET(sock, > &fExceptionSet)/*sanity check*/) resultConditionSet |= SOCKET_EXCEPTION; > > if ((resultConditionSet&handler->conditionSet) != 0 && > handler->handlerProc != NULL) { > > fLastHandledSocketNum = sock; > > // Note: we set "fLastHandledSocketNum" before calling the > handler, > > // in case the handler calls "doEventLoop()" reentrantly. > > (*handler->handlerProc)(handler->clientData, resultConditionSet); > > break; > > } > > } > > if (handler == NULL) fLastHandledSocketNum = -1;//because we didn't call > a handler > > } > > > Could I attach my code? > > > Thank you > -Antonio > > 2011/10/28 Ross Finlayson <[email protected]> > >> I'm trying to implement a GUI with QtWidget in order to show video frame >> from a rtsp camera. >> >> I started from the code of openRTSP and I modified it in order to have >> c++ classes. >> >> After it runs: >> >> env->taskScheduler().doEventLoop(); >> >> it comes back to the "continueAfterOPTIONS" member function. The problem >> is that all class variables lose their values, probably a problem with >> memory management. >> >> >> The problem is more likely to be that you're not using this function >> correctly. Note that the "continueAfterOPTIONS()" function (and the other >> "continueAfter...()" functions) take a "RTSPClient*" as the first >> parameter. In the current code, this parameter is not used (because we >> have only one "RTSPClient" object, which is a global variable >> "ourRTSPClient"). However, if you want to use this code in your own custom >> application - where the "RTSPClient" object is not a global variable (or >> there's more than one "RTSPClient" object) - then you will need to use this >> first parameter to the "continueAfter...()" functions; it will point to the >> "RTSPClient" object. >> >> >> Ross Finlayson >> Live Networks, Inc. >> http://www.live555.com/ >> >> >> _______________________________________________ >> live-devel mailing list >> [email protected] >> http://lists.live555.com/mailman/listinfo/live-devel >> >> > > > -- > * > Antonio Nunziante > * > -- * Antonio Nunziante *
QVideoPlayerWidget.rar
Description: application/rar
_______________________________________________ live-devel mailing list [email protected] http://lists.live555.com/mailman/listinfo/live-devel
