Ginga  0.13.6
 All Classes Namespaces Functions Variables
SectionFilter.h
1 /******************************************************************************
2 Este arquivo eh parte da implementacao do ambiente declarativo do middleware
3 Ginga (Ginga-NCL).
4 
5 Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia
6 
7 Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
8 os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
9 Software Foundation.
10 
11 Este programa eh distribuido na expectativa de que seja util, porem, SEM
12 NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
13 ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
14 GNU versao 2 para mais detalhes.
15 
16 Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
17 com este programa; se nao, escreva para a Free Software Foundation, Inc., no
18 endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.
19 
20 Para maiores informacoes:
21 ncl @ telemidia.puc-rio.br
22 http://www.ncl.org.br
23 http://www.ginga.org.br
24 http://www.telemidia.puc-rio.br
25 ******************************************************************************
26 This file is part of the declarative environment of middleware Ginga (Ginga-NCL)
27 
28 Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.
29 
30 This program is free software; you can redistribute it and/or modify it under
31 the terms of the GNU General Public License version 2 as published by
32 the Free Software Foundation.
33 
34 This program is distributed in the hope that it will be useful, but WITHOUT ANY
35 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
36 PARTICULAR PURPOSE. See the GNU General Public License version 2 for more
37 details.
38 
39 You should have received a copy of the GNU General Public License version 2
40 along with this program; if not, write to the Free Software
41 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
42 
43 For further information contact:
44 ncl @ telemidia.puc-rio.br
45 http://www.ncl.org.br
46 http://www.ginga.org.br
47 http://www.telemidia.puc-rio.br
48 *******************************************************************************/
49 
50 #ifndef SECTIONFILTER_H_
51 #define SECTIONFILTER_H_
52 
53 extern "C" {
54  #include <sys/stat.h>
55  #include <stdio.h>
56  #include <stdio.h>
57 }
58 
59 #include "util/functions.h"
60 using namespace ::br::pucrio::telemidia::util;
61 
62 #include "system/thread/Thread.h"
63 using namespace ::br::pucrio::telemidia::ginga::core::system::thread;
64 
65 #include "tsparser/IDemuxer.h"
66 #include "tsparser/ITSPacket.h"
67 #include "tsparser/ITransportSection.h"
68 #include "tsparser/IFilterListener.h"
69 using namespace ::br::pucrio::telemidia::ginga::core::tsparser;
70 
71 #include <string>
72 #include <map>
73 #include <set>
74 #include <iostream>
75 using namespace std;
76 
77 namespace br {
78 namespace pucrio {
79 namespace telemidia {
80 namespace ginga {
81 namespace core {
82 namespace dataprocessing {
83  struct SectionHandler {
84  // Last section's packet continuityCounter.
85  int lastContinuityCounter;
86  char sectionHeader[8];
87  unsigned int headerSize;
88  int recvPack;
89  ITransportSection* section;
90  };
91 
92  class SectionFilter : public ITSFilter {
93  private:
94  map<unsigned int, SectionHandler*> sectionPidSelector;
95 
96  IFilterListener* listener;
97  set<string> processedSections;
98 
99  int lastPid;
100  map<int, ITransportSection*> hFilteredSections;
101  pthread_mutex_t stlMutex;
102 
103  public:
104  SectionFilter();
105  virtual ~SectionFilter();
106 
107  void addPid(int pid){};
108 
109  private:
110  string setDestinationUri(string dstUri){return dstUri;};
111  void setSourceUri(string srcUri, bool isPipe){};
112 
113  void resetHandler(SectionHandler* handler);
114  void ignore(unsigned int pid);
115  SectionHandler* getSectionHandler(unsigned int pid);
116  void process(ITransportSection* section, unsigned int pid);
117  void verifyAndAddData(ITSPacket* pack, bool lastPacket);
118  bool verifyAndCreateSection(ITSPacket* pack);
119  bool setSectionParameters(ITSPacket* pack);
120 
121  public:
122  void setListener(IFilterListener* listener);
123  bool checkProcessedSections(string sectionName);
124  void addProcessedSection(string sectionName);
125  void removeProcessedSection(string sectionName);
126  void clearProcessedSections();
127  bool checkSectionVersion(ITransportSection* section);
128  void receiveTSPacket(ITSPacket* pack);
129  void receiveSection(char* buf, int len, IFrontendFilter* filter);
130  void receivePes(char* buf, int len, IFrontendFilter* filter);
131  };
132 }
133 }
134 }
135 }
136 }
137 }
138 
139 #endif /*SECTIONFILTER_H_*/