Changed section handling; replaced 'libdtv' with 'libsi'

1 files changed, 74 insertions, 0 deletions

diff --git a/filter.h b/filter.h
new file mode 100644
index 00000000..09703e02
--- /dev/null
+++ b/filter.h
@@ -0,0 +1,74 @@
+/*
+ * filter.h: Section filter
+ *
+ * See the main source file 'vdr.c' for copyright information and
+ * how to reach the author.
+ *
+ * $Id: filter.h 1.1 2003/12/22 11:41:40 kls Exp $
+ */
+
+#ifndef __FILTER_H
+#define __FILTER_H
+
+#include <sys/types.h>
+#include "tools.h"
+
+class cFilterData : public cListObject {
+public:
+  u_short pid;
+  u_char tid;
+  u_char mask;
+  bool sticky;
+  cFilterData(void);
+  cFilterData(u_short Pid, u_char Tid, u_char Mask, bool Sticky);
+  bool Is(u_short Pid, u_char Tid, u_char Mask);
+  bool Matches(u_short Pid, u_char Tid);
+  };
+
+class cSectionHandler;
+
+class cFilter : public cListObject {
+  friend class cSectionHandler;
+private:
+  cSectionHandler *sectionHandler;
+  cList<cFilterData> data;
+  bool on;
+protected:
+  cFilter(void);
+  cFilter(u_short Pid, u_char Tid, u_char Mask = 0xFF);
+  virtual ~cFilter();
+  virtual void SetStatus(bool On);
+       ///< Turns this filter on or off, depending on the value of On.
+       ///< If the filter is turned off, any filter data that has been
+       ///< added without the Sticky parameter set to 'true' will be
+       ///< automatically deleted. Those parameters that have been added
+       ///< with Sticky set to 'true' will be automatically reused when
+       ///< SetStatus(true) is called.
+  virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length) = 0;
+       ///< Processes the data delivered to this filter.
+       ///< Pid and Tid is one of the combinations added to this filter by
+       ///< a previous call to Add(), Data is a pointer to Length bytes of
+       ///< data. This function will be called from the section handler's
+       ///< thread, so it has to use proper locking mechanisms in case it
+       ///< accesses any global data. It is guaranteed that if several cFilters
+       ///< are attached to the same cSectionHandler, only _one_ of them has
+       ///< its Process() function called at any given time. It is allowed
+       ///< that more than one cFilter are set up to receive the same Pid/Tid.
+       ///< The Process() function must return as soon as possible.
+  int Source(void);
+       ///< Returns the source of the data delivered to this filter.
+  int Transponder(void);
+       ///< Returns the transponder of the data delivered to this filter.
+  bool Matches(u_short Pid, u_char Tid);
+       ///< Indicates whether this filter wants to receive data from the given Pid/Tid.
+  void Set(u_short Pid, u_char Tid, u_char Mask = 0xFF);
+       ///< Sets the given filter data by calling Add() with Sticky = true.
+  void Add(u_short Pid, u_char Tid, u_char Mask = 0xFF, bool Sticky = false);
+       ///< Adds the given filter data to this filter.
+       ///< If Sticky is true, this will survive a status change, otherwise
+       ///< it will be automatically deleted.
+  void Del(u_short Pid, u_char Tid, u_char Mask = 0xFF);
+       ///< Deletes the given filter data from this filter.
+  };
+
+#endif //__FILTER_H