summaryrefslogtreecommitdiff
path: root/vdr.c
blob: 051e3d850791a304a9f7509d92f59bbe67734c45 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
/*
 * vdr.c: Video Disk Recorder main program
 *
 * Copyright (C) 2000, 2003 Klaus Schmidinger
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
 *
 * The author can be reached at kls@cadsoft.de
 *
 * The project's page is at http://www.cadsoft.de/vdr
 *
 * $Id: vdr.c 1.167 2003/09/05 13:01:00 kls Exp $
 */

#include <getopt.h>
#include <locale.h>
#include <signal.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
#include "audio.h"
#include "channels.h"
#include "config.h"
#include "cutter.h"
#include "device.h"
#include "diseqc.h"
#include "dvbdevice.h"
#include "eitscan.h"
#include "i18n.h"
#include "interface.h"
#include "keys.h"
#include "lirc.h"
#include "menu.h"
#include "osd.h"
#include "plugin.h"
#include "rcu.h"
#include "recording.h"
#include "sources.h"
#include "timers.h"
#include "tools.h"
#include "videodir.h"

#define MINCHANNELWAIT  10 // seconds to wait between failed channel switchings
#define ACTIVITYTIMEOUT 60 // seconds before starting housekeeping
#define SHUTDOWNWAIT   300 // seconds to wait in user prompt before automatic shutdown
#define MANUALSTART    600 // seconds the next timer must be in the future to assume manual start

static int Interrupted = 0;

static void SignalHandler(int signum)
{
  if (signum != SIGPIPE) {
     Interrupted = signum;
     Interface->Interrupt();
     }
  signal(signum, SignalHandler);
}

static void Watchdog(int signum)
{
  // Something terrible must have happened that prevented the 'alarm()' from
  // being called in time, so let's get out of here:
  esyslog("PANIC: watchdog timer expired - exiting!");
  exit(1);
}

int main(int argc, char *argv[])
{
  // Save terminal settings:

  struct termios savedTm;
  bool HasStdin = (tcgetpgrp(STDIN_FILENO) == getpid() || getppid() != (pid_t)1) && tcgetattr(STDIN_FILENO, &savedTm) == 0;

  // Initiate locale:

  setlocale(LC_ALL, "");

  // Command line options:

#define DEFAULTSVDRPPORT 2001
#define DEFAULTWATCHDOG     0 // seconds
#define DEFAULTPLUGINDIR PLUGINDIR

  int SVDRPport = DEFAULTSVDRPPORT;
  const char *AudioCommand = NULL;
  const char *ConfigDirectory = NULL;
  bool DisplayHelp = false;
  bool DisplayVersion = false;
  bool DaemonMode = false;
  int SysLogTarget = LOG_USER;
  bool MuteAudio = false;
  int WatchdogTimeout = DEFAULTWATCHDOG;
  const char *Terminal = NULL;
  const char *Shutdown = NULL;
  cPluginManager PluginManager(DEFAULTPLUGINDIR);

  static struct option long_options[] = {
      { "audio",    required_argument, NULL, 'a' },
      { "config",   required_argument, NULL, 'c' },
      { "daemon",   no_argument,       NULL, 'd' },
      { "device",   required_argument, NULL, 'D' },
      { "epgfile",  required_argument, NULL, 'E' },
      { "help",     no_argument,       NULL, 'h' },
      { "lib",      required_argument, NULL, 'L' },
      { "log",      required_argument, NULL, 'l' },
      { "mute",     no_argument,       NULL, 'm' },
      { "plugin",   required_argument, NULL, 'P' },
      { "port",     required_argument, NULL, 'p' },
      { "record",   required_argument, NULL, 'r' },
      { "shutdown", required_argument, NULL, 's' },
      { "terminal", required_argument, NULL, 't' },
      { "version",  no_argument,       NULL, 'V' },
      { "video",    required_argument, NULL, 'v' },
      { "watchdog", required_argument, NULL, 'w' },
      { NULL }
    };

  int c;
  while ((c = getopt_long(argc, argv, "a:c:dD:E:hl:L:mp:P:r:s:t:v:Vw:", long_options, NULL)) != -1) {
        switch (c) {
          case 'a': AudioCommand = optarg;
                    break;
          case 'c': ConfigDirectory = optarg;
                    break;
          case 'd': DaemonMode = true; break;
          case 'D': if (isnumber(optarg)) {
                       int n = atoi(optarg);
                       if (0 <= n && n < MAXDEVICES) {
                          cDevice::SetUseDevice(n);
                          break;
                          }
                       }
                    fprintf(stderr, "vdr: invalid DVB device number: %s\n", optarg);
                    return 2;
                    break;
          case 'E': cSIProcessor::SetEpgDataFileName(*optarg != '-' ? optarg : NULL);
                    break;
          case 'h': DisplayHelp = true;
                    break;
          case 'l': {
                      char *p = strchr(optarg, '.');
                      if (p)
                         *p = 0;
                      if (isnumber(optarg)) {
                         int l = atoi(optarg);
                         if (0 <= l && l <= 3) {
                            SysLogLevel = l;
                            if (!p)
                               break;
                            if (isnumber(p + 1)) {
                               int l = atoi(p + 1);
                               if (0 <= l && l <= 7) {
                                  int targets[] = { LOG_LOCAL0, LOG_LOCAL1, LOG_LOCAL2, LOG_LOCAL3, LOG_LOCAL4, LOG_LOCAL5, LOG_LOCAL6, LOG_LOCAL7 };
                                  SysLogTarget = targets[l];
                                  break;
                                  }
                               }
                            }
                         }
                    if (p)
                       *p = '.';
                    fprintf(stderr, "vdr: invalid log level: %s\n", optarg);
                    return 2;
                    }
                    break;
          case 'L': if (access(optarg, R_OK | X_OK) == 0)
                       PluginManager.SetDirectory(optarg);
                    else {
                       fprintf(stderr, "vdr: can't access plugin directory: %s\n", optarg);
                       return 2;
                       }
                    break;
          case 'm': MuteAudio = true;
                    break;
          case 'p': if (isnumber(optarg))
                       SVDRPport = atoi(optarg);
                    else {
                       fprintf(stderr, "vdr: invalid port number: %s\n", optarg);
                       return 2;
                       }
                    break;
          case 'P': PluginManager.AddPlugin(optarg);
                    break;
          case 'r': cRecordingUserCommand::SetCommand(optarg);
                    break;
          case 's': Shutdown = optarg;
                    break;
          case 't': Terminal = optarg;
                    if (access(Terminal, R_OK | W_OK) < 0) {
                       fprintf(stderr, "vdr: can't access terminal: %s\n", Terminal);
                       return 2;
                       }
                    break;
          case 'V': DisplayVersion = true;
                    break;
          case 'v': VideoDirectory = optarg;
                    while (optarg && *optarg && optarg[strlen(optarg) - 1] == '/')
                          optarg[strlen(optarg) - 1] = 0;
                    break;
          case 'w': if (isnumber(optarg)) { int t = atoi(optarg);
                       if (t >= 0) {
                          WatchdogTimeout = t;
                          break;
                          }
                       }
                    fprintf(stderr, "vdr: invalid watchdog timeout: %s\n", optarg);
                    return 2;
                    break;
          default:  return 2;
          }
        }

  // Help and version info:

  if (DisplayHelp || DisplayVersion) {
     if (!PluginManager.HasPlugins())
        PluginManager.AddPlugin("*"); // adds all available plugins
     PluginManager.LoadPlugins();
     if (DisplayHelp) {
        printf("Usage: vdr [OPTIONS]\n\n"          // for easier orientation, this is column 80|
               "  -a CMD,   --audio=CMD    send Dolby Digital audio to stdin of command CMD\n"
               "  -c DIR,   --config=DIR   read config files from DIR (default is to read them\n"
               "                           from the video directory)\n"
               "  -d,       --daemon       run in daemon mode\n"
               "  -D NUM,   --device=NUM   use only the given DVB device (NUM = 0, 1, 2...)\n"
               "                           there may be several -D options (default: all DVB\n"
               "                           devices will be used)\n"
               "  -E FILE   --epgfile=FILE write the EPG data into the given FILE (default is\n"
               "                           %s); use '-E-' to disable this\n"
               "                           if FILE is a directory, the default EPG file will be\n"
               "                           created in that directory\n"
               "  -h,       --help         print this help and exit\n"
               "  -l LEVEL, --log=LEVEL    set log level (default: 3)\n"
               "                           0 = no logging, 1 = errors only,\n"
               "                           2 = errors and info, 3 = errors, info and debug\n"
               "                           if logging should be done to LOG_LOCALn instead of\n"
               "                           LOG_USER, add '.n' to LEVEL, as in 3.7 (n=0..7)\n"
               "  -L DIR,   --lib=DIR      search for plugins in DIR (default is %s)\n"
               "  -m,       --mute         mute audio of the primary DVB device at startup\n"
               "  -p PORT,  --port=PORT    use PORT for SVDRP (default: %d)\n"
               "                           0 turns off SVDRP\n"
               "  -P OPT,   --plugin=OPT   load a plugin defined by the given options\n"
               "  -r CMD,   --record=CMD   call CMD before and after a recording\n"
               "  -s CMD,   --shutdown=CMD call CMD to shutdown the computer\n"
               "  -t TTY,   --terminal=TTY controlling tty\n"
               "  -v DIR,   --video=DIR    use DIR as video directory (default: %s)\n"
               "  -V,       --version      print version information and exit\n"
               "  -w SEC,   --watchdog=SEC activate the watchdog timer with a timeout of SEC\n"
               "                           seconds (default: %d); '0' disables the watchdog\n"
               "\n",
               cSIProcessor::GetEpgDataFileName() ? cSIProcessor::GetEpgDataFileName() : "'-'",
               DEFAULTPLUGINDIR,
               DEFAULTSVDRPPORT,
               VideoDirectory,
               DEFAULTWATCHDOG
               );
        }
     if (DisplayVersion)
        printf("vdr (%s) - The Video Disk Recorder\n", VDRVERSION);
     if (PluginManager.HasPlugins()) {
        if (DisplayHelp)
           printf("Plugins: vdr -P\"name [OPTIONS]\"\n\n");
        for (int i = 0; ; i++) {
            cPlugin *p = PluginManager.GetPlugin(i);
            if (p) {
               const char *help = p->CommandLineHelp();
               printf("%s (%s) - %s\n", p->Name(), p->Version(), p->Description());
               if (DisplayHelp && help) {
                  printf("\n");
                  puts(help);
                  }
               }
            else
               break;
            }
        }
     return 0;
     }

  // Log file:

  if (SysLogLevel > 0)
     openlog("vdr", LOG_PID | LOG_CONS, SysLogTarget);

  // Check the video directory:

  if (!DirectoryOk(VideoDirectory, true)) {
     fprintf(stderr, "vdr: can't access video directory %s\n", VideoDirectory);
     return 2;
     }

  // Daemon mode:

  if (DaemonMode) {
#if !defined(DEBUG_OSD)
     pid_t pid = fork();
     if (pid < 0) {
        fprintf(stderr, "%m\n");
        esyslog("ERROR: %m");
        return 2;
        }
     if (pid != 0)
        return 0; // initial program immediately returns
     fclose(stdin);
     fclose(stdout);
     fclose(stderr);
#else
     fprintf(stderr, "vdr: can't run in daemon mode with DEBUG_OSD on!\n");
     return 2;
#endif
     }
  else if (Terminal) {
     // Claim new controlling terminal
     stdin  = freopen(Terminal, "r", stdin);
     stdout = freopen(Terminal, "w", stdout);
     stderr = freopen(Terminal, "w", stderr);
     HasStdin = true;
     }

  isyslog("VDR version %s started", VDRVERSION);

  // Load plugins:

  if (!PluginManager.LoadPlugins(true))
     return 2;

  // Configuration data:

  if (!ConfigDirectory)
     ConfigDirectory = VideoDirectory;

  cPlugin::SetConfigDirectory(ConfigDirectory);

  Setup.Load(AddDirectory(ConfigDirectory, "setup.conf"));
  if (!(Sources.Load(AddDirectory(ConfigDirectory, "sources.conf"), true, true) &&
        Diseqcs.Load(AddDirectory(ConfigDirectory, "diseqc.conf"), true, true) &&
        Channels.Load(AddDirectory(ConfigDirectory, "channels.conf"), false, true) &&
        Timers.Load(AddDirectory(ConfigDirectory, "timers.conf")) &&
        Commands.Load(AddDirectory(ConfigDirectory, "commands.conf"), true) &&
        RecordingCommands.Load(AddDirectory(ConfigDirectory, "reccmds.conf"), true) &&
        SVDRPhosts.Load(AddDirectory(ConfigDirectory, "svdrphosts.conf"), true) &&
        CaDefinitions.Load(AddDirectory(ConfigDirectory, "ca.conf"), true) &&
        Keys.Load(AddDirectory(ConfigDirectory, "remote.conf")) &&
        KeyMacros.Load(AddDirectory(ConfigDirectory, "keymacros.conf"), true)
        ))
     return 2;

  // DVB interfaces:

  cDvbDevice::Initialize();

  // Initialize plugins:

  if (!PluginManager.InitializePlugins())
     return 2;

  // Primary device:

  cDevice::SetPrimaryDevice(Setup.PrimaryDVB);
  if (!cDevice::PrimaryDevice() || !cDevice::PrimaryDevice()->HasDecoder()) {
     if (cDevice::PrimaryDevice() && !cDevice::PrimaryDevice()->HasDecoder())
        isyslog("device %d has no MPEG decoder", cDevice::PrimaryDevice()->DeviceNumber() + 1);
     for (int i = 0; i < cDevice::NumDevices(); i++) {
         cDevice *d = cDevice::GetDevice(i);
         if (d && d->HasDecoder()) {
            isyslog("trying device number %d instead", i + 1);
            if (cDevice::SetPrimaryDevice(i + 1)) {
               Setup.PrimaryDVB = i + 1;
               break;
               }
            }
         }
     if (!cDevice::PrimaryDevice()) {
        const char *msg = "no primary device found - using first device!";
        fprintf(stderr, "vdr: %s\n", msg);
        esyslog("ERROR: %s", msg);
        if (!cDevice::SetPrimaryDevice(0))
           return 2;
        if (!cDevice::PrimaryDevice()) {
           const char *msg = "no primary device found - giving up!";
           fprintf(stderr, "vdr: %s\n", msg);
           esyslog("ERROR: %s", msg);
           return 2;
           }
        }
     }

  // OSD:

  cOsd::Initialize();

  // User interface:

  Interface = new cInterface(SVDRPport);

  // Start plugins:

  if (!PluginManager.StartPlugins())
     return 2;

  // Remote Controls:
#if defined(REMOTE_RCU)
  new cRcuRemote("/dev/ttyS1");
#elif defined(REMOTE_LIRC)
  new cLircRemote("/dev/lircd");
#endif
#if defined(REMOTE_KBD)
  if (!DaemonMode && HasStdin)
     new cKbdRemote;
#endif
  Interface->LearnKeys();

  // External audio:

  if (AudioCommand)
     new cExternalAudio(AudioCommand);

  // Channel:

  Channels.SwitchTo(Setup.CurrentChannel);
  if (MuteAudio)
     cDevice::PrimaryDevice()->ToggleMute();
  else
     cDevice::PrimaryDevice()->SetVolume(Setup.CurrentVolume, true);

  cSIProcessor::Read();

  // Signal handlers:

  if (signal(SIGHUP,  SignalHandler) == SIG_IGN) signal(SIGHUP,  SIG_IGN);
  if (signal(SIGINT,  SignalHandler) == SIG_IGN) signal(SIGINT,  SIG_IGN);
  if (signal(SIGTERM, SignalHandler) == SIG_IGN) signal(SIGTERM, SIG_IGN);
  if (signal(SIGPIPE, SignalHandler) == SIG_IGN) signal(SIGPIPE, SIG_IGN);
  if (WatchdogTimeout > 0)
     if (signal(SIGALRM, Watchdog)   == SIG_IGN) signal(SIGALRM, SIG_IGN);

  // Watchdog:

  if (WatchdogTimeout > 0) {
     dsyslog("setting watchdog timer to %d seconds", WatchdogTimeout);
     alarm(WatchdogTimeout); // Initial watchdog timer start
     }

  // Main program loop:

  cOsdObject *Menu = NULL;
  cOsdObject *Temp = NULL;
  int LastChannel = -1;
  int LastTimerChannel = -1;
  int PreviousChannel[2] = { 1, 1 };
  int PreviousChannelIndex = 0;
  time_t LastChannelChanged = time(NULL);
  time_t LastActivity = 0;
  int MaxLatencyTime = 0;
  bool ForceShutdown = false;
  bool UserShutdown = false;

  while (!Interrupted) {
        // Handle emergency exits:
        if (cThread::EmergencyExit()) {
           esyslog("emergency exit requested - shutting down");
           break;
           }
        // Attach launched player control:
        cControl::Attach();
        // Make sure we have a visible programme in case device usage has changed:
        if (!EITScanner.Active() && cDevice::PrimaryDevice()->HasDecoder() && !cDevice::PrimaryDevice()->HasProgramme()) {
           static time_t lastTime = 0;
           if (time(NULL) - lastTime > MINCHANNELWAIT) {
              if (!Channels.SwitchTo(cDevice::CurrentChannel()) // try to switch to the original channel...
                  && !(LastTimerChannel > 0 && Channels.SwitchTo(LastTimerChannel)) // ...or the one used by the last timer...
                  && !cDevice::SwitchChannel(1) // ...or the next higher available one...
                  && !cDevice::SwitchChannel(-1)) // ...or the next lower available one
                 lastTime = time(NULL); // don't do this too often
              LastTimerChannel = -1;
              }
           }
        // Restart the Watchdog timer:
        if (WatchdogTimeout > 0) {
           int LatencyTime = WatchdogTimeout - alarm(WatchdogTimeout);
           if (LatencyTime > MaxLatencyTime) {
              MaxLatencyTime = LatencyTime;
              dsyslog("max. latency time %d seconds", MaxLatencyTime);
              }
           }
        // Channel display:
        if (!EITScanner.Active() && cDevice::CurrentChannel() != LastChannel) {
           if (!Menu)
              Menu = Temp = new cDisplayChannel(cDevice::CurrentChannel(), LastChannel > 0);
           LastChannel = cDevice::CurrentChannel();
           LastChannelChanged = time(NULL);
           }
        if (time(NULL) - LastChannelChanged >= Setup.ZapTimeout && LastChannel != PreviousChannel[0] && LastChannel != PreviousChannel[1])
           PreviousChannel[PreviousChannelIndex ^= 1] = LastChannel;
        // Timers and Recordings:
        if (!Timers.BeingEdited()) {
           time_t Now = time(NULL); // must do both following calls with the exact same time!
           cRecordControls::Process(Now);
           cTimer *Timer = Timers.GetMatch(Now);
           if (Timer) {
              if (!cRecordControls::Start(Timer))
                 Timer->SetPending(true);
              else
                 LastTimerChannel = Timer->Channel()->Number();
              }
           }
        // CAM control:
        if (!Menu && !Interface->IsOpen())
           Menu = CamControl();
        // User Input:
        cOsdObject *Interact = Menu ? Menu : cControl::Control();
        eKeys key = Interface->GetKey(!Interact || !Interact->NeedsFastResponse());
        if (NORMALKEY(key) != kNone) {
           EITScanner.Activity();
           LastActivity = time(NULL);
           }
        // Keys that must work independent of any interactive mode:
        switch (key) {
          // Menu control:
          case kMenu:
               key = kNone; // nobody else needs to see this key
               if (Menu) {
                  DELETENULL(Menu);
                  if (!Temp)
                     break;
                  }
               if (cControl::Control())
                  cControl::Control()->Hide();
               Menu = new cMenuMain(cControl::Control());
               Temp = NULL;
               break;
          #define DirectMainFunction(function...)\
            DELETENULL(Menu);\
            if (cControl::Control())\
               cControl::Control()->Hide();\
            Menu = new cMenuMain(cControl::Control(), function);\
            Temp = NULL;\
            key = kNone; // nobody else needs to see this key
          case kSchedule:   DirectMainFunction(osSchedule); break;
          case kChannels:   DirectMainFunction(osChannels); break;
          case kTimers:     DirectMainFunction(osTimers); break;
          case kRecordings: DirectMainFunction(osRecordings); break;
          case kSetup:      DirectMainFunction(osSetup); break;
          case kCommands:   DirectMainFunction(osCommands); break;
          case kUser1 ... kUser9: cRemote::PutMacro(key); key = kNone; break;
          case k_Plugin:    DirectMainFunction(osPlugin, cRemote::GetPlugin()); break;
          // Channel up/down:
          case kChanUp|k_Repeat:
          case kChanUp:
          case kChanDn|k_Repeat:
          case kChanDn:
               cDevice::SwitchChannel(NORMALKEY(key) == kChanUp ? 1 : -1);
               break;
          // Volume Control:
          case kVolUp|k_Repeat:
          case kVolUp:
          case kVolDn|k_Repeat:
          case kVolDn:
          case kMute:
               if (key == kMute) {
                  if (!cDevice::PrimaryDevice()->ToggleMute() && !Menu) {
                     key = kNone; // nobody else needs to see these keys
                     break; // no need to display "mute off"
                     }
                  }
               else
                  cDevice::PrimaryDevice()->SetVolume(NORMALKEY(key) == kVolDn ? -VOLUMEDELTA : VOLUMEDELTA);
               if (!Menu && !Interface->IsOpen())
                  Menu = Temp = cDisplayVolume::Create();
               cDisplayVolume::Process(key);
               key = kNone; // nobody else needs to see these keys
               break;
          // Pausing live video:
          case kPause:
               if (!cControl::Control()) {
                  DELETENULL(Menu);
                  Temp = NULL;
                  if (!cRecordControls::PauseLiveVideo())
                     Interface->Error(tr("No free DVB device to record!"));
                  key = kNone; // nobody else needs to see this key
                  }
               break;
          // Instant recording:
          case kRecord:
               if (!cControl::Control()) {
                  if (cRecordControls::Start())
                     ;//XXX Interface->Info(tr("Recording"));
                  else
                     Interface->Error(tr("No free DVB device to record!"));
                  key = kNone; // nobody else needs to see this key
                  }
               break;
          // Power off:
          case kPower: isyslog("Power button pressed");
                       DELETENULL(Menu);
                       cControl::Shutdown();
                       Temp = NULL;
                       if (!Shutdown) {
                          Interface->Error(tr("Can't shutdown - option '-s' not given!"));
                          break;
                          }
                       if (cRecordControls::Active()) {
                          if (Interface->Confirm(tr("Recording - shut down anyway?")))
                             ForceShutdown = true;
                          }
                       LastActivity = 1; // not 0, see below!
                       UserShutdown = true;
                       break;
          default: break;
          }
        Interact = Menu ? Menu : cControl::Control(); // might have been closed in the mean time
        if (Interact) {
           eOSState state = Interact->ProcessKey(key);
           if (state == osUnknown && ISMODELESSKEY(key) && cControl::Control() && Interact != cControl::Control())
              state = cControl::Control()->ProcessKey(key);
           switch (state) {
             case osPause:  DELETENULL(Menu);
                            cControl::Shutdown(); // just in case
                            Temp = NULL;
                            if (!cRecordControls::PauseLiveVideo())
                               Interface->Error(tr("No free DVB device to record!"));
                            break;
             case osRecord: DELETENULL(Menu);
                            Temp = NULL;
                            if (cRecordControls::Start())
                               ;//XXX Interface->Info(tr("Recording"));
                            else
                               Interface->Error(tr("No free DVB device to record!"));
                            break;
             case osRecordings:
                            DELETENULL(Menu);
                            cControl::Shutdown();
                            Temp = NULL;
                            Menu = new cMenuMain(false, osRecordings);
                            break;
             case osReplay: DELETENULL(Menu);
                            cControl::Shutdown();
                            Temp = NULL;
                            cControl::Launch(new cReplayControl);
                            break;
             case osStopReplay:
                            DELETENULL(Menu);
                            cControl::Shutdown();
                            Temp = NULL;
                            break;
             case osSwitchDvb:
                            DELETENULL(Menu);
                            cControl::Shutdown();
                            Temp = NULL;
                            Interface->Info(tr("Switching primary DVB..."));
                            cDevice::SetPrimaryDevice(Setup.PrimaryDVB);
                            break;
             case osPlugin: DELETENULL(Menu);
                            Menu = Temp = cMenuMain::PluginOsdObject();
                            if (Menu)
                               Menu->Show();
                            break;
             case osBack:
             case osEnd:    if (Interact == Menu)
                               DELETENULL(Menu);
                            else
                               cControl::Shutdown();
                            Temp = NULL;
                            break;
             default:       ;
             }
           }
        else {
           // Key functions in "normal" viewing mode:
           switch (key) {
             // Toggle channels:
             case k0: {
                  if (PreviousChannel[PreviousChannelIndex ^ 1] == LastChannel || LastChannel != PreviousChannel[0] && LastChannel != PreviousChannel[1])
                     PreviousChannelIndex ^= 1;
                  Channels.SwitchTo(PreviousChannel[PreviousChannelIndex ^= 1]);
                  break;
                  }
             // Direct Channel Select:
             case k1 ... k9:
                  Menu = new cDisplayChannel(key);
                  break;
             // Left/Right rotates trough channel groups:
             case kLeft|k_Repeat:
             case kLeft:
             case kRight|k_Repeat:
             case kRight:
                  Menu = new cDisplayChannel(NORMALKEY(key));
                  break;
             // Up/Down Channel Select:
             case kUp|k_Repeat:
             case kUp:
             case kDown|k_Repeat:
             case kDown:
                  cDevice::SwitchChannel(NORMALKEY(key) == kUp ? 1 : -1);
                  break;
             // Viewing Control:
             case kOk:   LastChannel = -1; break; // forces channel display
             // Key macros:
             case kRed:
             case kGreen:
             case kYellow:
             case kBlue: cRemote::PutMacro(key); break;
             default:    break;
             }
           }
        if (!Menu) {
           EITScanner.Process();
           if (!cCutter::Active() && cCutter::Ended()) {
              if (cCutter::Error())
                 Interface->Error(tr("Editing process failed!"));
              else
                 Interface->Info(tr("Editing process finished"));
              }
           }
        if (!Interact && ((!cRecordControls::Active() && !cCutter::Active() && (!Interface->HasSVDRPConnection() || UserShutdown)) || ForceShutdown)) {
           time_t Now = time(NULL);
           if (Now - LastActivity > ACTIVITYTIMEOUT) {
              // Shutdown:
              if (Shutdown && (Setup.MinUserInactivity || LastActivity == 1) && Now - LastActivity > Setup.MinUserInactivity * 60) {
                 cTimer *timer = Timers.GetNextActiveTimer();
                 time_t Next  = timer ? timer->StartTime() : 0;
                 time_t Delta = timer ? Next - Now : 0;
                 if (!LastActivity) {
                    if (!timer || Delta > MANUALSTART) {
                       // Apparently the user started VDR manually
                       dsyslog("assuming manual start of VDR");
                       LastActivity = Now;
                       continue; // don't run into the actual shutdown procedure below
                       }
                    else
                       LastActivity = 1;
                    }
                 if (UserShutdown && Next && Delta <= Setup.MinEventTimeout * 60 && !ForceShutdown) {
                    char *buf;
                    asprintf(&buf, tr("Recording in %d minutes, shut down anyway?"), Delta / 60);
                    if (Interface->Confirm(buf))
                       ForceShutdown = true;
                    else
                       UserShutdown = false;
                    free(buf);
                    }
                 if (!Next || Delta > Setup.MinEventTimeout * 60 || ForceShutdown) {
                    ForceShutdown = false;
                    if (timer)
                       dsyslog("next timer event at %s", ctime(&Next));
                    if (WatchdogTimeout > 0)
                       signal(SIGALRM, SIG_IGN);
                    if (Interface->Confirm(tr("Press any key to cancel shutdown"), UserShutdown ? 5 : SHUTDOWNWAIT, true)) {
                       int Channel = timer ? timer->Channel()->Number() : 0;
                       const char *File = timer ? timer->File() : "";
                       char *cmd;
                       asprintf(&cmd, "%s %ld %ld %d \"%s\" %d", Shutdown, Next, Delta, Channel, strescape(File, "\"$"), UserShutdown);
                       isyslog("executing '%s'", cmd);
                       SystemExec(cmd);
                       free(cmd);
                       }
                    else if (WatchdogTimeout > 0) {
                       alarm(WatchdogTimeout);
                       if (signal(SIGALRM, Watchdog) == SIG_IGN)
                          signal(SIGALRM, SIG_IGN);
                       }
                    LastActivity = time(NULL); // don't try again too soon
                    UserShutdown = false;
                    continue; // skip the rest of the housekeeping for now
                    }
                 }
              // Disk housekeeping:
              RemoveDeletedRecordings();
              // Plugins housekeeping:
              PluginManager.Housekeeping();
              }
           }
        }
  if (Interrupted)
     isyslog("caught signal %d", Interrupted);
  cRecordControls::Shutdown();
  cCutter::Stop();
  delete Menu;
  cControl::Shutdown();
  delete Interface;
  cOsd::Shutdown();
  Remotes.Clear();
  Audios.Clear();
  Setup.CurrentChannel = cDevice::CurrentChannel();
  Setup.CurrentVolume  = cDevice::CurrentVolume();
  Setup.Save();
  cDevice::Shutdown();
  PluginManager.Shutdown(true);
  if (WatchdogTimeout > 0)
     dsyslog("max. latency time %d seconds", MaxLatencyTime);
  isyslog("exiting");
  if (SysLogLevel > 0)
     closelog();
  if (HasStdin)
     tcsetattr(STDIN_FILENO, TCSANOW, &savedTm);
  if (cThread::EmergencyExit()) {
     esyslog("emergency exit!");
     return 1;
     }
  return 0;
}