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/*
* receiver.c: The basic receiver interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: receiver.c 4.3 2017/04/02 10:08:49 kls Exp $
*/
#include "receiver.h"
#include <stdio.h>
#include "tools.h"
cReceiver::cReceiver(const cChannel *Channel, int Priority)
{
device = NULL;
SetPriority(Priority);
numPids = 0;
lastScrambledPacket = 0;
startScrambleDetection = 0;
scramblingTimeout = 0;
SetPids(Channel);
}
cReceiver::~cReceiver()
{
if (device) {
const char *msg = "ERROR: cReceiver has not been detached yet! This is a design fault and VDR will abort now!";
esyslog("%s", msg);
fprintf(stderr, "%s\n", msg);
abort();
}
}
void cReceiver::SetPriority(int Priority)
{
priority = constrain(Priority, MINPRIORITY, MAXPRIORITY);
}
bool cReceiver::AddPid(int Pid)
{
if (Pid) {
if (numPids < MAXRECEIVEPIDS) {
if (!WantsPid(Pid)) {
pids[numPids++] = Pid;
if (device)
device->AddPid(Pid);
}
}
else {
dsyslog("too many PIDs in cReceiver (Pid = %d)", Pid);
return false;
}
}
return true;
}
bool cReceiver::AddPids(const int *Pids)
{
if (Pids) {
while (*Pids) {
if (!AddPid(*Pids++))
return false;
}
}
return true;
}
bool cReceiver::AddPids(int Pid1, int Pid2, int Pid3, int Pid4, int Pid5, int Pid6, int Pid7, int Pid8, int Pid9)
{
return AddPid(Pid1) && AddPid(Pid2) && AddPid(Pid3) && AddPid(Pid4) && AddPid(Pid5) && AddPid(Pid6) && AddPid(Pid7) && AddPid(Pid8) && AddPid(Pid9);
}
bool cReceiver::SetPids(const cChannel *Channel)
{
numPids = 0;
if (Channel) {
channelID = Channel->GetChannelID();
return AddPid(Channel->Vpid()) &&
(Channel->Ppid() == Channel->Vpid() || AddPid(Channel->Ppid())) &&
AddPids(Channel->Apids()) &&
AddPids(Channel->Dpids()) &&
AddPids(Channel->Spids());
}
return true;
}
void cReceiver::DelPid(int Pid)
{
if (Pid) {
for (int i = 0; i < numPids; i++) {
if (pids[i] == Pid) {
for ( ; i < numPids; i++) // we also copy the terminating 0!
pids[i] = pids[i + 1];
numPids--;
if (device)
device->DelPid(Pid);
return;
}
}
}
}
void cReceiver::DelPids(const int *Pids)
{
if (Pids) {
while (*Pids)
DelPid(*Pids++);
}
}
bool cReceiver::WantsPid(int Pid)
{
if (Pid) {
for (int i = 0; i < numPids; i++) {
if (pids[i] == Pid)
return true;
}
}
return false;
}
void cReceiver::Detach(void)
{
if (device)
device->Detach(this);
}
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