vdr/osm.c

/*
 * osm.c: On Screen Menu for the Video Disk Recorder
 *
 * Copyright (C) 2000 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/people/kls/vdr
 *
 * $Id: osm.c 1.3 2000/04/15 14:04:21 kls Exp $
 */

#include <signal.h>
#include "config.h"
#include "interface.h"
#include "menu.h"
#include "recording.h"
#include "tools.h"

#ifdef DEBUG_REMOTE
#define KEYS_CONF "keys-pc.conf"
#else
#define KEYS_CONF "keys.conf"
#endif

static int Interrupted = 0;

void SignalHandler(int signum)
{
  Interrupted = signum;
}

int main(int argc, char *argv[])
{
  openlog("vdr", LOG_PID | LOG_CONS, LOG_USER);
  isyslog(LOG_INFO, "started");

  Channels.Load("channels.conf");
  Timers.Load("timers.conf");
  if (!Keys.Load(KEYS_CONF))
     Interface.LearnKeys();
  Interface.Init();

  cChannel::SwitchTo(CurrentChannel);

  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);

  cMenuMain *Menu = NULL;
  cTimer *Timer = NULL;
  cRecording *Recording = NULL;

  while (!Interrupted) {
        AssertFreeDiskSpace();
        if (!Recording && !Timer && (Timer = cTimer::GetMatch()) != NULL) {
           DELETENULL(Menu);
           // make sure the timer won't be deleted:
           Timer->SetRecording(true);
           // switch to channel:
           cChannel::SwitchTo(Timer->channel - 1);
           // start recording:
           Recording = new cRecording(Timer);
           if (!Recording->Record())
              DELETENULL(Recording);
           }
        if (Timer && !Timer->Matches()) {
           // stop recording:
           if (Recording) {
              Recording->Stop();
              DELETENULL(Recording);
              }
           // release timer:
           Timer->SetRecording(false);
           // clear single event timer:
           if (Timer->IsSingleEvent()) {
              DELETENULL(Menu); // must make sure no menu uses it
              isyslog(LOG_INFO, "deleting timer %d", Timer->Index() + 1);
              Timers.Del(Timer);
              Timers.Save();
              }
           Timer = NULL;
           }
        eKeys key = Interface.GetKey();
        if (Menu) {
           switch (Menu->ProcessKey(key)) {
             default: if (key != kMenu)
                         break;
             case osBack:
             case osEnd: DELETENULL(Menu);
                         break;
             }
           }
        else {
           switch (key) {
             // Record/Replay Control:
             case kBegin:         DvbApi.Skip(-INT_MAX); break;
             case kRecord:        if (!DvbApi.Recording()) {
                                     cTimer *timer = new cTimer(true);
                                     Timers.Add(timer);
                                     Timers.Save();
                                     }
                                  else
                                     Interface.Error("Already recording!");
                                  break;
             case kPause:         DvbApi.PauseReplay(); break;
             case kStop:          DvbApi.StopReplay(); break;
             case kSearchBack:    DvbApi.FastRewind(); break;
             case kSearchForward: DvbApi.FastForward(); break;
             case kSkipBack:      DvbApi.Skip(-60); break;
             case kSkipForward:   DvbApi.Skip(60); break;
             // Menu Control:
             case kMenu: Menu = new cMenuMain;
                         Menu->Display();
                         break;
             case kUp:
             case kDown: {
                           int n = CurrentChannel + (key == kUp ? 1 : -1);
                           cChannel *channel = Channels.Get(n);
                           if (channel)
                              channel->Switch();
                         }
                         break;
             default:    break;
             }
           }
        }
  isyslog(LOG_INFO, "caught signal %d", Interrupted);
  DvbApi.StopRecord();
  DvbApi.StopReplay();
  //TODO kill any remaining sub-processes!
  isyslog(LOG_INFO, "exiting", Interrupted);
  closelog();
  return 0;
}