Fixed switching devices to the transponders of VPS recordings in case there are only bonded devices

HISTORY

@@ -6960,7 +6960,7 @@ Video Disk Recorder Revision History
   which was made in version 1.1.10, so please report if this has any unwanted
   side effects.
 
-2012-03-05: Version 1.7.26
+2012-03-06: Version 1.7.26
 
 - Now checking for NULL in cOsd::AddPixmap() (suggested by Christoph Haubrich).
 - Fixed the German translation of "VDR will shut down in %s minutes" (thanks to
@@ -6976,3 +6976,6 @@ Video Disk Recorder Revision History
 - Made the ST:TNG skin the default in case the user selected skin is not available.
 - Improved displaying signal strength and quality in the ST:TNG skin's channel
   display.
+- Fixed switching devices to the transponders of VPS recordings in case there
+  are only bonded devices. The cDevice's "avoid device" mechanism has been replaced
+  by using "occupied".

device.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: device.c 2.55 2012/03/03 11:43:05 kls Exp $
+ * $Id: device.c 2.56 2012/03/06 12:32:38 kls Exp $
  */
 
 #include "device.h"
@@ -68,7 +68,6 @@ int cDevice::nextCardIndex = 0;
 int cDevice::currentChannel = 1;
 cDevice *cDevice::device[MAXDEVICES] = { NULL };
 cDevice *cDevice::primaryDevice = NULL;
-cDevice *cDevice::avoidDevice = NULL;
 cList<cDeviceHook> cDevice::deviceHooks;
 
 cDevice::cDevice(void)
@@ -228,8 +227,6 @@ static int GetClippedNumProvidedSystems(int AvailableBits, cDevice *Device)
 
 cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView, bool Query)
 {
-  cDevice *AvoidDevice = avoidDevice;
-  avoidDevice = NULL;
   // Collect the current priorities of all CAM slots that can decrypt the channel:
   int NumCamSlots = CamSlots.Count();
   int SlotPriority[NumCamSlots];
@@ -259,8 +256,6 @@ cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView
       if (NumUsableSlots && SlotPriority[j] > MAXPRIORITY)
          continue; // there is no CAM available in this slot
       for (int i = 0; i < numDevices; i++) {
-          if (device[i] == AvoidDevice)
-             continue; // this device shall be temporarily avoided
           if (Channel->Ca() && Channel->Ca() <= CA_DVB_MAX && Channel->Ca() != device[i]->CardIndex() + 1)
              continue; // a specific card was requested, but not this one
           if (NumUsableSlots && !CamSlots.Get(j)->Assign(device[i], true))
@@ -319,6 +314,26 @@ cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView
   return d;
 }
 
+cDevice *cDevice::GetDeviceForTransponder(const cChannel *Channel, int Priority)
+{
+  cDevice *Device = NULL;
+  for (int i = 0; i < cDevice::NumDevices(); i++) {
+      if (cDevice *d = cDevice::GetDevice(i)) {
+         if (d->IsTunedToTransponder(Channel))
+            return d; // if any device is tuned to the transponder, we're done
+         if (d->ProvidesTransponder(Channel)) {
+            if (d->MaySwitchTransponder(Channel))
+               Device = d; // this device may switch to the transponder without disturbing any receiver or live view
+            else if (!d->Occupied()) {
+               if (d->Priority() < Priority && (!Device || d->Priority() < Device->Priority()))
+                  Device = d; // use this one only if no other with less impact can be found
+               }
+            }
+         }
+      }
+  return Device;
+}
+
 bool cDevice::HasCi(void)
 {
   return false;

device.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: device.h 2.36 2012/03/02 10:23:13 kls Exp $
+ * $Id: device.h 2.37 2012/03/06 12:13:46 kls Exp $
  */
 
 #ifndef __DEVICE_H
@@ -109,7 +109,6 @@ private:
   static int useDevice;
   static cDevice *device[MAXDEVICES];
   static cDevice *primaryDevice;
-  static cDevice *avoidDevice;
 public:
   static int NumDevices(void) { return numDevices; }
          ///< Returns the total number of devices.
@@ -158,9 +157,11 @@ public:
          ///< in order to just determine whether a device is available for the given
          ///< Channel.
          ///< See also ProvidesChannel().
-  static void SetAvoidDevice(cDevice *Device) { avoidDevice = Device; }
+  static cDevice *GetDeviceForTransponder(const cChannel *Channel, int Priority);
-         ///< Sets the given Device to be temporarily avoided in the next call to
+         ///< Returns a device that is not currently "occupied" and can be tuned to
-         ///< GetDevice(const cChannel, int, bool).
+         ///< the transponder of the given Channel, without disturbing any receiver
+         ///< at priorities higher or equal to Priority.
+         ///< If no such device is currently available, NULL will be returned.
   static void Shutdown(void);
          ///< Closes down all devices.
          ///< Must be called at the end of the program.

vdr.c

@@ -22,7 +22,7 @@
  *
  * The project's page is at http://www.tvdr.de
  *
- * $Id: vdr.c 2.31 2012/03/05 10:44:33 kls Exp $
+ * $Id: vdr.c 2.32 2012/03/06 12:14:17 kls Exp $
  */
 
 #include <getopt.h>
@@ -762,9 +762,13 @@ int main(int argc, char *argv[])
            if ((!Menu || CheckHasProgramme) && Now - lastTime > MINCHANNELWAIT) { // !Menu to avoid interfering with the CAM if a CAM menu is open
               cChannel *Channel = Channels.GetByNumber(cDevice::CurrentChannel());
               if (Channel && (Channel->Vpid() || Channel->Apid(0))) {
-                 if (!Channels.SwitchTo(cDevice::CurrentChannel()) // try to switch to the original channel...
+                 if (cDevice::GetDeviceForTransponder(Channel, LIVEPRIORITY) && Channels.SwitchTo(Channel->Number())) // try to switch to the original channel...
-                     && !(LastTimerChannel > 0 && Channels.SwitchTo(LastTimerChannel))) // ...or the one used by the last timer...
                     ;
+                 else if (LastTimerChannel > 0) {
+                    Channel = Channels.GetByNumber(LastTimerChannel);
+                    if (Channel && cDevice::GetDeviceForTransponder(Channel, LIVEPRIORITY) && Channels.SwitchTo(LastTimerChannel)) // ...or the one used by the last timer
+                       ;
+                    }
                  }
               lastTime = Now; // don't do this too often
               LastTimerChannel = -1;
@@ -878,31 +882,12 @@ int main(int argc, char *argv[])
                      }
                   if (NeedsTransponder || InVpsMargin) {
                      // Find a device that provides the required transponder:
-                     cDevice *Device = NULL;
+                     cDevice *Device = cDevice::GetDeviceForTransponder(Timer->Channel(), MINPRIORITY);
-                     bool DeviceAvailable = false;
+                     if (!Device && InVpsMargin)
-                     for (int i = 0; i < cDevice::NumDevices(); i++) {
+                        Device = cDevice::GetDeviceForTransponder(Timer->Channel(), LIVEPRIORITY);
-                         cDevice *d = cDevice::GetDevice(i);
-                         if (d && d->ProvidesTransponder(Timer->Channel())) {
-                            if (d->IsTunedToTransponder(Timer->Channel())) {
-                               // if any device is tuned to the transponder, we're done
-                               Device = d;
-                               break;
-                               }
-                            if (d->MaySwitchTransponder(Timer->Channel())) {
-                               DeviceAvailable = true; // avoids using the actual device below
-                               Device = d;
-                               }
-                            else if (!d->Occupied() && !Device && InVpsMargin && !d->Receiving() && d->ProvidesTransponderExclusively(Timer->Channel()))
-                               Device = d; // use this one only if no other with less impact can be found
-                            }
-                         }
-                     if (!Device && InVpsMargin && !DeviceAvailable) {
-                        cDevice *d = cDevice::ActualDevice();
-                        if (!d->Receiving() && d->ProvidesTransponder(Timer->Channel()) && !d->Occupied())
-                           Device = d; // use the actual device as a last resort
-                        }
                      // Switch the device to the transponder:
                      if (Device) {
+                        bool HadProgramme = cDevice::PrimaryDevice()->HasProgramme();
                         if (!Device->IsTunedToTransponder(Timer->Channel())) {
                            if (Device == cDevice::ActualDevice() && !Device->IsPrimaryDevice())
                               cDevice::PrimaryDevice()->StopReplay(); // stop transfer mode
@@ -910,13 +895,8 @@ int main(int argc, char *argv[])
                            if (Device->SwitchChannel(Timer->Channel(), false))
                               Device->SetOccupied(TIMERDEVICETIMEOUT);
                            }
-                        if (cDevice::PrimaryDevice()->HasDecoder() && !cDevice::PrimaryDevice()->HasProgramme()) {
+                        if (cDevice::PrimaryDevice()->HasDecoder() && HadProgramme && !cDevice::PrimaryDevice()->HasProgramme())
-                           // the previous SwitchChannel() has switched away the current live channel
+                           Skins.Message(mtInfo, tr("Upcoming recording!")); // the previous SwitchChannel() has switched away the current live channel
-                           cDevice::SetAvoidDevice(Device);
-                           if (!Channels.SwitchTo(cDevice::CurrentChannel())) // try to switch to the original channel on a different device...
-                              Channels.SwitchTo(Timer->Channel()->Number()); // ...or avoid toggling between old channel and black screen
-                           Skins.Message(mtInfo, tr("Upcoming recording!"));
-                           }
                         }
                      }
                   }