mirror of https://github.com/VDR4Arch/vdr.git
130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
/*
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* receiver.c: The basic receiver interface
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: receiver.c 4.4 2017/05/01 08:49:20 kls Exp $
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*/
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#include "receiver.h"
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#include <stdio.h>
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#include "tools.h"
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cReceiver::cReceiver(const cChannel *Channel, int Priority)
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{
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device = NULL;
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SetPriority(Priority);
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numPids = 0;
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lastScrambledPacket = 0;
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startScrambleDetection = 0;
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scramblingTimeout = 0;
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startEitInjection = 0;
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lastEitInjection = 0;
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SetPids(Channel);
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}
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cReceiver::~cReceiver()
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{
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if (device) {
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const char *msg = "ERROR: cReceiver has not been detached yet! This is a design fault and VDR will abort now!";
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esyslog("%s", msg);
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fprintf(stderr, "%s\n", msg);
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abort();
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}
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}
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void cReceiver::SetPriority(int Priority)
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{
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priority = constrain(Priority, MINPRIORITY, MAXPRIORITY);
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}
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bool cReceiver::AddPid(int Pid)
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{
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if (Pid) {
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if (numPids < MAXRECEIVEPIDS) {
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if (!WantsPid(Pid)) {
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pids[numPids++] = Pid;
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if (device)
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device->AddPid(Pid);
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}
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}
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else {
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dsyslog("too many PIDs in cReceiver (Pid = %d)", Pid);
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return false;
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}
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}
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return true;
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}
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bool cReceiver::AddPids(const int *Pids)
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{
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if (Pids) {
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while (*Pids) {
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if (!AddPid(*Pids++))
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return false;
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}
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}
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return true;
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}
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bool cReceiver::AddPids(int Pid1, int Pid2, int Pid3, int Pid4, int Pid5, int Pid6, int Pid7, int Pid8, int Pid9)
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{
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return AddPid(Pid1) && AddPid(Pid2) && AddPid(Pid3) && AddPid(Pid4) && AddPid(Pid5) && AddPid(Pid6) && AddPid(Pid7) && AddPid(Pid8) && AddPid(Pid9);
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}
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bool cReceiver::SetPids(const cChannel *Channel)
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{
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numPids = 0;
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if (Channel) {
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channelID = Channel->GetChannelID();
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return AddPid(Channel->Vpid()) &&
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(Channel->Ppid() == Channel->Vpid() || AddPid(Channel->Ppid())) &&
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AddPids(Channel->Apids()) &&
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AddPids(Channel->Dpids()) &&
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AddPids(Channel->Spids());
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}
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return true;
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}
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void cReceiver::DelPid(int Pid)
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{
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if (Pid) {
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for (int i = 0; i < numPids; i++) {
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if (pids[i] == Pid) {
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for ( ; i < numPids; i++) // we also copy the terminating 0!
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pids[i] = pids[i + 1];
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numPids--;
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if (device)
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device->DelPid(Pid);
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return;
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}
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}
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}
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}
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void cReceiver::DelPids(const int *Pids)
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{
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if (Pids) {
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while (*Pids)
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DelPid(*Pids++);
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}
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}
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bool cReceiver::WantsPid(int Pid)
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{
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if (Pid) {
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for (int i = 0; i < numPids; i++) {
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if (pids[i] == Pid)
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return true;
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}
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}
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return false;
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}
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void cReceiver::Detach(void)
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{
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if (device)
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device->Detach(this);
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}
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