hacks/stress.py

   1 #!/usr/bin/python3
   2
   3 import random
   4 import subprocess
   5
   6 def make_seeks(dcp, output, seeks):
   7     with open(output, 'w') as f:
   8         # Open the DCP and start it playing
   9         print("O %s" % dcp, file=f)
  10         print("P", file=f)
  11         for i in range(seeks):
  12             # Wait a bit
  13             print("W %d" % random.randint(500, 60000), file=f)
  14             # Seek
  15             print("K %d" % random.randint(0, 4095), file=f)
  16             # Make sure we're still playing
  17             print("P", file=f)
  18         print("S", file=f)
  19
  20 def make_repeated_play(dcp, output, plays):
  21     length_parts = subprocess.check_output(['dcpinfo', '-o', 'total-time', dcp]).decode('utf-8').split(' ')[1].split(':')
  22     # Hackily ignore frames here
  23     length = int(length_parts[0]) * 3600 + int(length_parts[1]) * 60 + int(length_parts[2])
  24     with open(output, 'w') as f:
  25         for i in range(0, plays):
  26             print("O %s" % dcp, file=f)
  27             print("P", file=f)
  28             print("W %d" % (length * 1000), file=f)
  29             print("S", file=f)
  30
  31 make_seeks("/home/carl/DCP/Examples/BohemianRhapsody_TLR-7_S_DE-XX_DE_51_2K_TCFG_20180514_TM_IOP_OV/", "boho_seek", 64)
  32 make_repeated_play("/home/carl/DCP/Examples/BohemianRhapsody_TLR-7_S_DE-XX_DE_51_2K_TCFG_20180514_TM_IOP_OV/", "boho_long", 1000)
  33
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