Demo/sgi/al/alwatch.py

   1 import time
   2 import al, AL
   3 import string
   4
   5 dev = AL.DEFAULT_DEVICE
   6
   7 source_name = ['line', 'microphone', 'digital']
   8
   9 params = al.queryparams(dev)
  10 for i in range(1, len(params), 2):
  11         params[i] = -1
  12 while 1:
  13         time.sleep(0.1)
  14         old = params[:]
  15         al.getparams(dev, params)
  16         if params <> old:
  17                 for i in range(0, len(params), 2):
  18                         if params[i+1] <> old[i+1]:
  19                                 name = al.getname(dev, params[i])
  20                                 if params[i] == AL.INPUT_SOURCE:
  21                                         if 0 <= old[i+1] < len(source_name):
  22                                                 oldval = source_name[old[i+1]]
  23                                         else:
  24                                                 oldval = ''
  25                                         newval = source_name[params[i+1]]
  26                                 else:
  27                                         oldval = `old[i+1]`
  28                                         newval = `params[i+1]`
  29                                 print string.ljust(name, 25),
  30                                 print '(' + string.rjust(oldval, 10) + ')',
  31                                 print '-->',
  32                                 print string.rjust(newval, 10)
  33                 print