vdr 2.7.4
filter.h
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1/*
2 * filter.h: Section filter
3 *
4 * See the main source file 'vdr.c' for copyright information and
5 * how to reach the author.
6 *
7 * $Id: filter.h 5.5 2024/10/13 09:47:18 kls Exp $
8 */
9
10#ifndef __FILTER_H
11#define __FILTER_H
12
13#include <sys/types.h>
14#include "tools.h"
15
17private:
20 bool random;
21 bool synced;
23 uint32_t segments; // bit flags for the 32 segments
24 uchar sections[32]; // holds 32 * 8 = 256 bits, as flags for the sections
25 void SetSectionFlag(uchar Section, bool On) { if (On) sections[Section / 8] |= (1 << (Section % 8)); else sections[Section / 8] &= ~(1 << (Section % 8)); }
26 bool GetSectionFlag(uchar Section) { return sections[Section / 8] & (1 << (Section % 8)); }
27public:
28 cSectionSyncer(bool Random = false);
37 void Reset(void);
38 bool Check(uchar Version, int SectionNumber);
42 bool Processed(int SectionNumber, int LastSectionNumber, int SegmentLastSectionNumber = -1);
48 bool Complete(void) { return complete; }
50 };
51
54public:
56 };
57
58class cFilterData : public cListObject {
59public:
60 u_short pid;
61 u_char tid;
62 u_char mask;
63 bool sticky;
64 cFilterData(void);
65 cFilterData(u_short Pid, u_char Tid, u_char Mask, bool Sticky);
66 cFilterData& operator= (const cFilterData &FilterData);
67 bool Is(u_short Pid, u_char Tid, u_char Mask);
68 bool Matches(u_short Pid, u_char Tid);
69 };
70
71class cChannel;
72class cSectionHandler;
73
74class cFilter : public cListObject {
75 friend class cSectionHandler;
76private:
79 bool on;
80protected:
81 cFilter(void);
82 cFilter(u_short Pid, u_char Tid, u_char Mask = 0xFF);
83 virtual ~cFilter();
84 virtual void SetStatus(bool On);
91 virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length) = 0;
102 int Source(void);
104 int Transponder(void);
106 const cChannel *Channel(void);
108 bool Matches(u_short Pid, u_char Tid);
110 void Set(u_short Pid, u_char Tid, u_char Mask = 0xFF);
112 void Add(u_short Pid, u_char Tid, u_char Mask = 0xFF, bool Sticky = false);
116 void Del(u_short Pid, u_char Tid, u_char Mask = 0xFF);
118 };
119
120#endif //__FILTER_H
cFilterData & operator=(const cFilterData &FilterData)
Definition filter.c:94
bool Matches(u_short Pid, u_char Tid)
Definition filter.c:108
bool Is(u_short Pid, u_char Tid, u_char Mask)
Definition filter.c:103
u_short pid
Definition filter.h:60
bool sticky
Definition filter.h:63
u_char tid
Definition filter.h:61
cFilterData(void)
Definition filter.c:78
u_char mask
Definition filter.h:62
void Set(u_short Pid, u_char Tid, u_char Mask=0xFF)
Sets the given filter data by calling Add() with Sticky = true.
Definition filter.c:182
virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length)=0
Processes the data delivered to this filter.
cSectionHandler * sectionHandler
Definition filter.h:77
int Transponder(void)
Returns the transponder of the data delivered to this filter.
Definition filter.c:139
virtual void SetStatus(bool On)
Turns this filter on or off, depending on the value of On.
Definition filter.c:149
int Source(void)
Returns the source of the data delivered to this filter.
Definition filter.c:134
const cChannel * Channel(void)
Returns the channel of the data delivered to this filter.
Definition filter.c:144
bool on
Definition filter.h:79
cList< cFilterData > data
Definition filter.h:78
void Del(u_short Pid, u_char Tid, u_char Mask=0xFF)
Deletes the given filter data from this filter.
Definition filter.c:195
void Add(u_short Pid, u_char Tid, u_char Mask=0xFF, bool Sticky=false)
Adds the given filter data to this filter.
Definition filter.c:187
virtual ~cFilter()
Definition filter.c:128
friend class cSectionHandler
Definition filter.h:75
cFilter(void)
Definition filter.c:115
bool Matches(u_short Pid, u_char Tid)
Indicates whether this filter wants to receive data from the given Pid/Tid.
Definition filter.c:171
cListObject(const cListObject &ListObject)
Definition tools.h:534
Definition tools.h:631
cSectionSyncerRandom(void)
< Helper class for having an array of random section syncers.
Definition filter.h:55
void SetSectionFlag(uchar Section, bool On)
Definition filter.h:25
bool Check(uchar Version, int SectionNumber)
Returns true if Version is not the current version, or the given SectionNumber has not been marked as...
Definition filter.c:31
int currentSection
Definition filter.h:19
cSectionSyncer(bool Random=false)
Sets up a new section syncer.
Definition filter.c:15
int currentVersion
Definition filter.h:18
bool complete
Definition filter.h:22
bool Processed(int SectionNumber, int LastSectionNumber, int SegmentLastSectionNumber=-1)
Marks the given SectionNumber as processed.
Definition filter.c:54
bool Complete(void)
Returns true if all sections have been processed.
Definition filter.h:48
uchar sections[32]
Definition filter.h:24
uint32_t segments
Definition filter.h:23
void Reset(void)
Definition filter.c:21
bool random
Definition filter.h:20
bool GetSectionFlag(uchar Section)
Definition filter.h:26
bool synced
Definition filter.h:21
unsigned char uchar
Definition tools.h:31