New command line option '-r'

HISTORY

@@ -778,3 +778,5 @@ Video Disk Recorder Revision History
   word and the options.
 - The current volume setting is now saved to setup.conf and restored at the
   next program start.
+- New command line option '-r' to define a command that gets called before and
+  after each recording (see INSTALL for details).

INSTALL

@@ -158,6 +158,21 @@ particular hard- and software environment.
 If the '-s' option is present, the VDR machine can be turned off by pressing
 the "Power" key on the remote control.
 
+Executing commands before and after a recording:
+------------------------------------------------
+
+You can use the '-r' option to define a program or script that gets called
+before and after a recording is performed.
+
+The program will be called with one integer parameter that is "1" if this
+is *before* the recording, and "0" if this is *after* the recording.
+
+Within this program you can do anything you would like to do before and/or
+after a recording. However, the program must return as soon as possible,
+because otherwise it will block further execution of VDR. Be expecially careful
+to make sure the program returns before the watchdog timeout you may have set
+up with the '-w' option!
+
 Command line options:
 ---------------------
 

menu.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 1.125 2001/09/21 16:22:15 kls Exp $
+ * $Id: menu.c 1.126 2001/09/22 14:17:27 kls Exp $
  */
 
 #include "menu.h"
@@ -2104,6 +2104,8 @@ eOSState cDisplayChannel::ProcessKey(eKeys Key)
 
 // --- cRecordControl --------------------------------------------------------
 
+const char *cRecordControl::userCommand = NULL;
+
 cRecordControl::cRecordControl(cDvbApi *DvbApi, cTimer *Timer)
 {
   eventInfo = NULL;
@@ -2128,6 +2130,7 @@ cRecordControl::cRecordControl(cDvbApi *DvbApi, cTimer *Timer)
         Summary = eventInfo->GetExtendedDescription();
         }
      cRecording Recording(timer, Subtitle, Summary);
+     InvokeUserCommand(true);
      if (dvbApi->StartRecord(Recording.FileName(), Channels.GetByNumber(timer->channel)->ca, timer->priority))
         Recording.WriteSummary();
      Interface->DisplayRecording(dvbApi->CardIndex(), true);
@@ -2170,6 +2173,17 @@ bool cRecordControl::GetEventInfo(void)
   return false;
 }
 
+void cRecordControl::InvokeUserCommand(bool Before)
+{
+  if (userCommand) {
+     char *cmd;
+     asprintf(&cmd, "%s %d", userCommand, Before);
+     isyslog(LOG_INFO, "executing '%s'", cmd);
+     system(cmd);
+     delete cmd;
+     }
+}
+
 void cRecordControl::Stop(bool KeepInstant)
 {
   if (timer) {
@@ -2184,6 +2198,7 @@ void cRecordControl::Stop(bool KeepInstant)
         }
      timer = NULL;
      Interface->DisplayRecording(dvbApi->CardIndex(), false);
+     InvokeUserCommand(false);
      }
 }
 

menu.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.h 1.28 2001/09/14 15:09:49 kls Exp $
+ * $Id: menu.h 1.29 2001/09/22 14:02:37 kls Exp $
  */
 
 #ifndef _MENU_H
@@ -71,14 +71,17 @@ public:
 
 class cRecordControl {
 private:
+  static const char *userCommand;
   cDvbApi *dvbApi;
   cTimer *timer;
   const cEventInfo *eventInfo;
   char *instantId;
   bool GetEventInfo(void);
+  void InvokeUserCommand(bool Before);
 public:
   cRecordControl(cDvbApi *DvbApi, cTimer *Timer = NULL);
   virtual ~cRecordControl();
+  static void SetUserCommand(const char *UserCommand) { userCommand = UserCommand; }
   bool Process(time_t t);
   bool Uses(cDvbApi *DvbApi) { return DvbApi == dvbApi; }
   void Stop(bool KeepInstant = false);

vdr.c

@@ -22,7 +22,7 @@
  *
  * The project's page is at http://www.cadsoft.de/people/kls/vdr
  *
- * $Id: vdr.c 1.74 2001/09/22 13:38:28 kls Exp $
+ * $Id: vdr.c 1.75 2001/09/22 14:05:40 kls Exp $
  */
 
 #define _GNU_SOURCE
@@ -96,6 +96,7 @@ int main(int argc, char *argv[])
       { "help",     no_argument,       NULL, 'h' },
       { "log",      required_argument, NULL, 'l' },
       { "port",     required_argument, NULL, 'p' },
+      { "record",   required_argument, NULL, 'r' },
       { "shutdown", required_argument, NULL, 's' },
       { "terminal", required_argument, NULL, 't' },
       { "video",    required_argument, NULL, 'v' },
@@ -106,7 +107,7 @@ int main(int argc, char *argv[])
 
   int c;
   int option_index = 0;
-  while ((c = getopt_long(argc, argv, "a:c:dD:E:hl:p:s:t:v:V:w:", long_options, &option_index)) != -1) {
+  while ((c = getopt_long(argc, argv, "a:c:dD:E:hl:p:r:s:t:v:V:w:", long_options, &option_index)) != -1) {
         switch (c) {
           case 'a': cDvbApi::SetAudioCommand(optarg);
                     break;
@@ -143,6 +144,7 @@ int main(int argc, char *argv[])
                            "                           2 = errors and info, 3 = errors, info and debug\n"
                            "  -p PORT,  --port=PORT    use PORT for SVDRP (default: %d)\n"
                            "                           0 turns off SVDRP\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"
@@ -180,6 +182,8 @@ int main(int argc, char *argv[])
                        return 2;
                        }
                     break;
+          case 'r': cRecordControl::SetUserCommand(optarg);
+                    break;
           case 's': Shutdown = optarg;
                     break;
           case 't': Terminal = optarg;