vdr  2.4.1
receiver.c
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1 /*
2  * receiver.c: The basic receiver interface
3  *
4  * See the main source file 'vdr.c' for copyright information and
5  * how to reach the author.
6  *
7  * $Id: receiver.c 4.4 2017/05/01 08:49:20 kls Exp $
8  */
9 
10 #include "receiver.h"
11 #include <stdio.h>
12 #include "tools.h"
13 
14 cReceiver::cReceiver(const cChannel *Channel, int Priority)
15 {
16  device = NULL;
18  numPids = 0;
23  lastEitInjection = 0;
24  SetPids(Channel);
25 }
26 
28 {
29  if (device) {
30  const char *msg = "ERROR: cReceiver has not been detached yet! This is a design fault and VDR will abort now!";
31  esyslog("%s", msg);
32  fprintf(stderr, "%s\n", msg);
33  abort();
34  }
35 }
36 
37 void cReceiver::SetPriority(int Priority)
38 {
40 }
41 
42 bool cReceiver::AddPid(int Pid)
43 {
44  if (Pid) {
45  if (numPids < MAXRECEIVEPIDS) {
46  if (!WantsPid(Pid)) {
47  pids[numPids++] = Pid;
48  if (device)
49  device->AddPid(Pid);
50  }
51  }
52  else {
53  dsyslog("too many PIDs in cReceiver (Pid = %d)", Pid);
54  return false;
55  }
56  }
57  return true;
58 }
59 
60 bool cReceiver::AddPids(const int *Pids)
61 {
62  if (Pids) {
63  while (*Pids) {
64  if (!AddPid(*Pids++))
65  return false;
66  }
67  }
68  return true;
69 }
70 
71 bool cReceiver::AddPids(int Pid1, int Pid2, int Pid3, int Pid4, int Pid5, int Pid6, int Pid7, int Pid8, int Pid9)
72 {
73  return AddPid(Pid1) && AddPid(Pid2) && AddPid(Pid3) && AddPid(Pid4) && AddPid(Pid5) && AddPid(Pid6) && AddPid(Pid7) && AddPid(Pid8) && AddPid(Pid9);
74 }
75 
76 bool cReceiver::SetPids(const cChannel *Channel)
77 {
78  numPids = 0;
79  if (Channel) {
80  channelID = Channel->GetChannelID();
81  return AddPid(Channel->Vpid()) &&
82  (Channel->Ppid() == Channel->Vpid() || AddPid(Channel->Ppid())) &&
83  AddPids(Channel->Apids()) &&
84  AddPids(Channel->Dpids()) &&
85  AddPids(Channel->Spids());
86  }
87  return true;
88 }
89 
90 void cReceiver::DelPid(int Pid)
91 {
92  if (Pid) {
93  for (int i = 0; i < numPids; i++) {
94  if (pids[i] == Pid) {
95  for ( ; i < numPids; i++) // we also copy the terminating 0!
96  pids[i] = pids[i + 1];
97  numPids--;
98  if (device)
99  device->DelPid(Pid);
100  return;
101  }
102  }
103  }
104 }
105 
106 void cReceiver::DelPids(const int *Pids)
107 {
108  if (Pids) {
109  while (*Pids)
110  DelPid(*Pids++);
111  }
112 }
113 
114 bool cReceiver::WantsPid(int Pid)
115 {
116  if (Pid) {
117  for (int i = 0; i < numPids; i++) {
118  if (pids[i] == Pid)
119  return true;
120  }
121  }
122  return false;
123 }
124 
126 {
127  if (device)
128  device->Detach(this);
129 }
#define MAXRECEIVEPIDS
Definition: receiver.h:15
#define dsyslog(a...)
Definition: tools.h:37
int Ppid(void) const
Definition: channels.h:155
cReceiver(const cChannel *Channel=NULL, int Priority=MINPRIORITY)
Creates a new receiver for the given Channel with the given Priority.
Definition: receiver.c:14
virtual ~cReceiver()
Definition: receiver.c:27
#define esyslog(a...)
Definition: tools.h:35
void Detach(cFilter *Filter)
Detaches the given filter from this device.
Definition: device.c:699
void DelPid(int Pid, ePidType PidType=ptOther)
Deletes a PID from the set of PIDs this device shall receive.
Definition: device.c:606
bool AddPids(const int *Pids)
Adds the given zero terminated list of Pids to the list of PIDs of this receiver. ...
Definition: receiver.c:60
int scramblingTimeout
Definition: receiver.h:27
const int * Spids(void) const
Definition: channels.h:159
cDevice * device
Definition: receiver.h:20
#define MINPRIORITY
Definition: config.h:40
int numPids
Definition: receiver.h:24
const int * Apids(void) const
Definition: channels.h:157
int Priority(void)
Definition: receiver.h:57
time_t startScrambleDetection
Definition: receiver.h:26
void DelPids(const int *Pids)
Deletes the given zero terminated list of Pids from the list of PIDs of this receiver.
Definition: receiver.c:106
const int * Dpids(void) const
Definition: channels.h:158
T constrain(T v, T l, T h)
Definition: tools.h:68
bool SetPids(const cChannel *Channel)
Sets the PIDs of this receiver to those of the given Channel, replacing any previously stored PIDs...
Definition: receiver.c:76
bool AddPid(int Pid)
Adds the given Pid to the list of PIDs of this receiver.
Definition: receiver.c:42
int pids[MAXRECEIVEPIDS]
Definition: receiver.h:23
int Vpid(void) const
Definition: channels.h:154
void DelPid(int Pid)
Deletes the given Pid from the list of PIDs of this receiver.
Definition: receiver.c:90
time_t lastScrambledPacket
Definition: receiver.h:25
tChannelID channelID
Definition: receiver.h:21
tChannelID GetChannelID(void) const
Definition: channels.h:190
time_t lastEitInjection
Definition: receiver.h:29
#define MAXPRIORITY
Definition: config.h:39
int priority
Definition: receiver.h:22
bool WantsPid(int Pid)
Definition: receiver.c:114
void SetPriority(int Priority)
Definition: receiver.c:37
time_t startEitInjection
Definition: receiver.h:28
void Detach(void)
Definition: receiver.c:125
bool AddPid(int Pid, ePidType PidType=ptOther, int StreamType=0)
Adds a PID to the set of PIDs this device shall receive.
Definition: device.c:541