tv_controller.py

   1
   2 import os
   3 import string
   4 import signal
   5 import alsaaudio
   6
   7 class VideoController:
   8
   9         def __init__(self):
  10                 self.vars = "XAUTHORITY=/home/honza801/.Xauthority DISPLAY=:0.0"
  11
  12         def is_running(self):
  13                 process = os.popen('pgrep vlc').readline()
  14                 if process != "":
  15                         return int(string.strip(process))
  16                 return -1
  17
  18         def getchannels(self):
  19                 process = os.popen('tv lschan').readline()
  20                 if process != "":
  21                         channels = map(string.strip, process.split(","))
  22                         return channels
  23                 return -1
  24
  25         def kill(self):
  26                 pid = self.is_running()
  27                 if pid < 0:
  28                         print "PID < 0"
  29                         return
  30                 else:
  31                         print "Sending SIGTERM to", pid
  32                         os.kill(pid,signal.SIGTERM)
  33
  34         def play_tv(self, channel):
  35                 pid = self.is_running()
  36                 if pid > 0:
  37                         print "Another mplayer is running with pid", pid
  38                         return
  39                 else:
  40                         q = self.vars+" screen -X screen /home/honza801/bin/tv "+channel
  41                         ret = os.system(q)
  42                         print q, ret
  43
  44         def play(self, file):
  45                 if not os.path.isfile(file):
  46                         return
  47                 pid = self.is_running()
  48                 if pid > 0:
  49                         print "Another mplayer is running with pid", pid
  50                         return
  51                 else:
  52                         q = self.vars+" screen -X screen /home/honza801/bin/tv \""+file+"\""
  53                         ret = os.system(q)
  54                         print q, ret
  55
  56
  57 class VolumeController:
  58
  59         def __init__(self, mixdevice='Master'):
  60                 self.mixdevice = alsaaudio.Mixer(mixdevice)
  61
  62         def getvolume(self):
  63                 return self.mixdevice.getvolume()
  64
  65         def volup(self):
  66                 newvol = int(self.mixdevice.getvolume()[0])+10
  67                 if newvol > 100:
  68                         newvol = 100
  69                 self.mixdevice.setvolume(newvol)
  70
  71         def voldown(self):
  72                 newvol = int(self.mixdevice.getvolume()[0])-10
  73                 if newvol < 0:
  74                         newvol = 0
  75                 self.mixdevice.setvolume(newvol)
  76
  77 class MonitorController:
  78
  79         def turnon(self):
  80                 ret = os.system("m on")
  81                 return ret
  82
  83         def turnoff(self):
  84                 ret = os.system("m off")
  85                 return ret
  86
  87
  88 if __name__ == "__main__":
  89         mpc = VideoController()
  90         mpc.play_tv("ct1")
  91