From 2adfad282320b6a6b116284507aac870d536a69a Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sat, 3 Feb 2001 17:44:25 +0100
Subject: [PATCH] The EPG scanner now scans each transponder only once per
 cycle

---
 HISTORY  |  1 +
 dvbapi.c | 26 +++++++++++++++++++++++---
 dvbapi.h |  7 ++++++-
 3 files changed, 30 insertions(+), 4 deletions(-)

diff --git a/HISTORY b/HISTORY
index 55037971..6a85b670 100644
--- a/HISTORY
+++ b/HISTORY
@@ -375,3 +375,4 @@ Video Disk Recorder Revision History
   Dave Chapman). Existing files will be read normally (and the teletext PID set
   to 0), but once they are written back (due to some channel editing) the file
   will have the new format.
+- The EPG scanner now scans each transponder only once per cycle.
diff --git a/dvbapi.c b/dvbapi.c
index f29e5a4b..94dd2c29 100644
--- a/dvbapi.c
+++ b/dvbapi.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.c 1.56 2001/02/03 16:00:23 kls Exp $
+ * $Id: dvbapi.c 1.57 2001/02/03 17:43:21 kls Exp $
  */
 
 #include "dvbapi.h"
@@ -2408,6 +2408,24 @@ 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)
@@ -2432,10 +2450,12 @@ void cEITScanner::Process(void)
                      int oldCh = lastChannel;
                      int ch = oldCh + 1;
                      while (ch != oldCh) {
-                           if (ch > Channels.MaxNumber())
+                           if (ch > Channels.MaxNumber()) {
                               ch = 1;
+                              numTransponders = 0;
+                              }
                            cChannel *Channel = Channels.GetByNumber(ch);
-                           if (Channel && Channel->pnr) {
+                           if (Channel && Channel->pnr && !TransponderScanned(Channel)) {
                               if (DvbApi == cDvbApi::PrimaryDvbApi && !currentChannel)
                                  currentChannel = DvbApi->Channel();
                               Channel->Switch(DvbApi, false);
diff --git a/dvbapi.h b/dvbapi.h
index c7c8fb40..634fabfe 100644
--- a/dvbapi.h
+++ b/dvbapi.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.h 1.32 2001/02/03 15:59:35 kls Exp $
+ * $Id: dvbapi.h 1.33 2001/02/03 17:39:33 kls Exp $
  */
 
 #ifndef __DVBAPI_H
@@ -48,6 +48,8 @@ const char *IndexToHMSF(int Index, bool WithFrame = false);
 int HMSFToIndex(const char *HMSF);
       // Converts the given string (format: "hh:mm:ss.ff") to an index.
 
+class cChannel;
+
 class cRecordBuffer;
 class cReplayBuffer;
 class cTransferBuffer;
@@ -256,8 +258,11 @@ private:
        };
   time_t lastScan, lastActivity;
   int currentChannel, lastChannel;
+  int numTransponders, *transponders;
+  bool TransponderScanned(cChannel *Channel);
 public:
   cEITScanner(void);
+  ~cEITScanner();
   bool Active(void) { return currentChannel; }
   void Activity(void);
   void Process(void);