1 files changed, 84 insertions, 0 deletions
diff --git a/eitscan.c b/eitscan.c
new file mode 100644
index 0000000..f620b09
--- /dev/null
+++ b/eitscan.c
@@ -0,0 +1,84 @@
+/*
+ * eitscan.c: EIT scanner
+ *
+ * See the main source file 'vdr.c' for copyright information and
+ * how to reach the author.
+ *
+ * $Id: eitscan.c 1.2 2002/06/02 09:02:05 kls Exp $
+ */
+
+#include "eitscan.h"
+
+cEITScanner::cEITScanner(void)
+{
+  lastScan = lastActivity = time(NULL);
+  currentChannel = 0;
+  lastChannel = 0;
+  numTransponders = 0;
+  transponders = NULL;
+}
+
+cEITScanner::~cEITScanner()
+{
+  delete transponders;
+}
+
+bool cEITScanner::TransponderScanned(cChannel *Channel)
+{
+  for (int i = 0; i < numTransponders; i++) {
+      if (transponders[i] == Channel->frequency)
+         return true;
+      }
+  transponders = (int *)realloc(transponders, ++numTransponders * sizeof(int));
+  transponders[numTransponders - 1] = Channel->frequency;
+  return false;
+}
+
+void cEITScanner::Activity(void)
+{
+  if (currentChannel) {
+     Channels.SwitchTo(currentChannel);
+     currentChannel = 0;
+     }
+  lastActivity = time(NULL);
+}
+
+void cEITScanner::Process(void)
+{
+  if (Setup.EPGScanTimeout && Channels.MaxNumber() > 1) {
+     time_t now = time(NULL);
+     if (now - lastScan > ScanTimeout && now - lastActivity > ActivityTimeout) {
+        for (int i = 0; i < MAXDEVICES; i++) {
+            cDevice *Device = cDevice::GetDevice(i + 1, MAXPRIORITY + 1);
+            if (Device) {
+               if (Device != cDevice::PrimaryDevice() || (cDevice::NumDevices() == 1 && Setup.EPGScanTimeout && now - lastActivity > Setup.EPGScanTimeout * 3600)) {
+                  if (!(Device->Receiving() || Device->Replaying()/*XXX+ || Device->Transferring()XXX*/)) {
+                     int oldCh = lastChannel;
+                     int ch = oldCh + 1;
+                     while (ch != oldCh) {
+                           if (ch > Channels.MaxNumber()) {
+                              ch = 1;
+                              numTransponders = 0;
+                              }
+                           cChannel *Channel = Channels.GetByNumber(ch);
+                           if (Channel) {
+                              if (Channel->ca <= MAXDEVICES && !Device->ProvidesCa(Channel->ca))
+                                 break; // the channel says it explicitly needs a different card
+                              if (Channel->pnr && !TransponderScanned(Channel)) {
+                                 if (Device == cDevice::PrimaryDevice() && !currentChannel)
+                                    currentChannel = Device->Channel();
+                                 Channel->Switch(Device, false);
+                                 lastChannel = ch;
+                                 break;
+                                 }
+                              }
+                           ch++;
+                           }
+                     }
+                  }
+               }
+            }
+        lastScan = time(NULL);
+        }
+     }
+}