Added support for LCN (Logical Channel Numbers)

CONTRIBUTORS

@@ -1194,6 +1194,7 @@ Rolf Ahrenberg <Rolf.Ahrenberg@sci.fi>
  for fixing a problem with subtitles not being displayed because the broadcaster
  doesn't set the data's version numbers as required by the DVB standard
  for the "binary skip" patch
+ for adding support for LCN (Logical Channel Numbers)
 
 Ralf Klueber <ralf.klueber@vodafone.com>
  for reporting a bug in cutting a recording if there is only a single editing mark

HISTORY

@@ -8450,3 +8450,5 @@ Video Disk Recorder Revision History
 - Made cRecording::GetResume() public (suggested by Stefan Braun).
 - Fixed setting the read index in cDvbPlayer::Goto() in case Still is false.
 - The function cDvbPlayer::Goto() now automatically calls Play() if Still is false.
+- Added support for LCN (Logical Channel Numbers), which plugins may use to sort
+  channels (thanks to Rolf Ahrenberg).

channels.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: channels.c 3.7 2015/01/14 12:15:03 kls Exp $
+ * $Id: channels.c 3.8 2015/02/01 13:47:05 kls Exp $
  */
 
 #include "channels.h"
@@ -248,6 +248,15 @@ void cChannel::SetId(int Nid, int Tid, int Sid, int Rid)
      }
 }
 
+void cChannel::SetLcn(int Lcn)
+{
+  if (lcn != Lcn) {
+     if (Number())
+        dsyslog("changing lcn of channel %d (%s) from %d to %d\n", Number(), name, lcn, Lcn);
+     lcn = Lcn;
+     }
+}
+
 void cChannel::SetName(const char *Name, const char *ShortName, const char *Provider)
 {
   if (!isempty(Name)) {

channels.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: channels.h 3.2 2014/01/04 15:01:21 kls Exp $
+ * $Id: channels.h 3.3 2015/02/01 13:30:26 kls Exp $
  */
 
 #ifndef __CHANNELS_H
@@ -121,6 +121,7 @@ private:
   int tid;
   int sid;
   int rid;
+  int lcn;       // Logical channel number assigned by data stream (or -1 if not available)
   int number;    // Sequence number assigned on load
   bool groupSep;
   int __EndData__;
@@ -174,6 +175,7 @@ public:
   int Tid(void) const { return tid; }
   int Sid(void) const { return sid; }
   int Rid(void) const { return rid; }
+  int Lcn(void) const { return lcn; }
   int Number(void) const { return number; }
   void SetNumber(int Number) { number = Number; }
   bool GroupSep(void) const { return groupSep; }
@@ -192,6 +194,7 @@ public:
   void CopyTransponderData(const cChannel *Channel);
   bool SetTransponderData(int Source, int Frequency, int Srate, const char *Parameters, bool Quiet = false);
   void SetId(int Nid, int Tid, int Sid, int Rid = 0);
+  void SetLcn(int Lcn);
   void SetName(const char *Name, const char *ShortName, const char *Provider);
   void SetPortalName(const char *PortalName);
   void SetPids(int Vpid, int Ppid, int Vtype, int *Apids, int *Atypes, char ALangs[][MAXLANGCODE2], int *Dpids, int *Dtypes, char DLangs[][MAXLANGCODE2], int *Spids, char SLangs[][MAXLANGCODE2], int Tpid);

nit.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: nit.c 3.3 2014/03/16 10:38:31 kls Exp $
+ * $Id: nit.c 3.4 2015/02/01 13:46:00 kls Exp $
  */
 
 #include "nit.h"
@@ -357,6 +357,40 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
                    }
                  }
                  break;
+            case SI::LogicalChannelDescriptorTag: {
+                 SI::LogicalChannelDescriptor *lcd = (SI::LogicalChannelDescriptor *)d;
+                 SI::LogicalChannelDescriptor::LogicalChannel LogicalChannel;
+                 for (SI::Loop::Iterator it4; lcd->logicalChannelLoop.getNext(LogicalChannel, it4); ) {
+                     int lcn = LogicalChannel.getLogicalChannelNumber();
+                     int sid = LogicalChannel.getServiceId();
+                     if (LogicalChannel.getVisibleServiceFlag()) {
+                        for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
+                            if (!Channel->GroupSep() && Channel->Sid() == sid && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
+                               Channel->SetLcn(lcn);
+                               break;
+                               }
+                            }
+                        }
+                     }
+                 }
+                 break;
+            case SI::HdSimulcastLogicalChannelDescriptorTag: {
+                 SI::HdSimulcastLogicalChannelDescriptor *lcd = (SI::HdSimulcastLogicalChannelDescriptor *)d;
+                 SI::HdSimulcastLogicalChannelDescriptor::HdSimulcastLogicalChannel HdSimulcastLogicalChannel;
+                 for (SI::Loop::Iterator it4; lcd->hdSimulcastLogicalChannelLoop.getNext(HdSimulcastLogicalChannel, it4); ) {
+                     int lcn = HdSimulcastLogicalChannel.getLogicalChannelNumber();
+                     int sid = HdSimulcastLogicalChannel.getServiceId();
+                     if (HdSimulcastLogicalChannel.getVisibleServiceFlag()) {
+                        for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
+                            if (!Channel->GroupSep() && Channel->Sid() == sid && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
+                               Channel->SetLcn(lcn);
+                               break;
+                               }
+                            }
+                        }
+                     }
+                 }
+                 break;
             default: ;
             }
           delete d;