HTTPGetStreamSource.h

00001 //           ///          //                                  C++ Cross Platform
00002 //          /////        ////
00003 //         /// XXX     XXX ///            ///////////   /////////     ///   ///
00004 //        ///    XXX XXX    ///         ///             ///    ///   ///  ///
00005 //       ///       XXX       ///         /////////     ///      //  //////
00006 //      ///      XXX XXX      ///               ///   ///    ///   ///  ///
00007 //     ////    XXX     XXX    ////    ////////////  //////////    ///   ///
00008 //    ////                     ////
00009 //   ////  M  O  B  O  T  I  X  ////////////////////////////////////////////////
00010 //  //// Security Vision Systems //////////////////////////////////////////////
00011 //
00012 //  $Author: khe_admin $
00013 //  $LastChangedBy: khe_admin $
00014 //  $LastChangedDate: 2007-06-29 15:34:53 +0200 (Fri, 29 Jun 2007) $
00015 //  $HeadURL: http://svn.mobotix.net/svn/mxsdk/src/IOKitComponent/trunk/include/HTTPGetStreamSource.h $
00016 //
00018      //
00019      //  MOBOTIX MxPEG SDK
00020      //
00021      //  This file belongs to the C++ library released as part of the MxPEG SDK.
00022      //
00023      //  This software is licensed under the BSD licence,
00024      //  http://www.opensource.org/licenses/bsd-license.php
00025      //
00026      //  Copyright (c) 2005 - 2007, MOBOTIX AG
00027      //  All rights reserved.
00028      //
00029      //  Redistribution and use in source and binary forms, with or without
00030      //  modification, are permitted provided that the following conditions are
00031      //  met:
00032      //
00033      //  - Redistributions of source code must retain the above copyright
00034      //    notice, this list of conditions and the following disclaimer.
00035      //
00036      //  - Redistributions in binary form must reproduce the above copyright
00037      //    notice, this list of conditions and the following disclaimer in the
00038      //    documentation and/or other materials provided with the distribution.
00039      //
00040      //  - Neither the name of MOBOTIX AG nor the names of its contributors may
00041      //    be used to endorse or promote products derived from this software
00042      //    without specific prior written permission.
00043      //
00044      //  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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00057 
00058 
00059 
00060 #ifndef __MX_HTTPGETSTREAMSOURCE_H__
00061 #define __MX_HTTPGETSTREAMSOURCE_H__
00062 
00063 
00064 
00065 #define MX_HTTPGETSTREAMSOURCE_ID "HTTPGetStreamSource"
00066 
00067 
00068 
00069 #include "HTTPGetStreamSourceCore.h"
00070 
00071 #include <interfaces/IComponent.h>
00072 #include <interfaces/IComponentInvoker.h>
00073 
00074 #include <Framework/Framework.h>
00075 
00076 #include <QTcpSocket>
00077 
00078 
00079 
00080 namespace mx {
00081    
00084 
00089    class HTTPGetStreamSource : public HTTPGetStreamSourceCore,
00090                                public virtual IComponent       {
00091       
00092       Q_OBJECT
00093       
00097     private:
00098       static mxm::smart<mxmStringList> _enumerateInterfaces() {
00099          return(new mxmStringList((mxmString(MX_HTTPGETSTREAMSOURCE_ID),
00100                                    MX_ICOMPONENT_ID,
00101                                    MX_IHTTPGETSTREAMSOURCE_ID,
00102                                    MX_IASYNCSTREAMSOURCE_ID,
00103                                    MX_ISTREAMSOURCE_ID,
00104                                    MX_ISUPPORTSHOSTSPECIFICATION_ID,
00105                                    MX_ISUPPORTSPROXYSPECIFICATION_ID,
00106                                    MX_ISUPPORTSWEBPAGESPECIFICATION_ID,
00107                                    MX_IREQUIRESEXTERNALAUTHENTICATOR_ID,
00108                                    MX_IREQUIRESACTIVATION_ID,
00109                                    MX_IERRORSTATE_ID)));
00110       }
00111       static mxm::smart<mxmStringList> _enumerateCapabilities(
00112                                           const mxmString &interface) {
00113          if(interface == mx::Framework::IdHintKey)
00114           return(new mxmStringList(MX_HTTPGETSTREAMSOURCE_ID));
00115          else
00116           return(new mxmStringList());
00117       }
00118       
00119     private:
00120       class Invoker : public mxmObject, public virtual IComponentInvoker {
00121        public:
00122          mxm::smart<mxmStringList> enumerateInterfaces() {
00123             return(_enumerateInterfaces());
00124          }
00125          mxm::smart<mxmStringList> enumerateCapabilities(
00126                                      const mxmString &interface) {
00127             return(_enumerateCapabilities(interface));
00128          }
00129          IComponent *newComponent() {
00130             return(new HTTPGetStreamSource());
00131          }
00132       };
00133     public:
00135       static IComponentInvoker *newInvoker() {
00136          return(new Invoker());
00137       }
00138       
00139     private:
00140       QTcpSocket *AsyncSocket;
00141       
00142     public:
00143       HTTPGetStreamSource();
00144       ~HTTPGetStreamSource();
00145       
00146     public:
00148       mxm::smart<mxmStringList> enumerateInterfaces() {
00149          return(_enumerateInterfaces());
00150       }
00152       mxm::smart<mxmStringList> enumerateCapabilities(
00153                                    const mxmString &interface) {
00154          return(_enumerateCapabilities(interface));
00155       }
00156       
00158       int fetchStreamBytes(mxm::u8 *buffer, int num);
00160       bool stillUp();
00162       bool waitForStreamBytes(int timeout_ms = 0);
00163       
00164     private:
00166       void establishConnection();
00168       void abortConnection();
00170       bool readChar(char *c);
00172       void send(const mxmString &txt);
00173    };
00174 };
00175 
00176 
00177 
00178 #endif   // __MX_HTTPGETSTREAMSOURCE_H__

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