demos/py_simple/cam_view.py

   1 #!/usr/bin/env python
   2
   3 from sys import exit
   4 from time import sleep
   5
   6 import gfxprim.core as core
   7 import gfxprim.backends as backends
   8 import gfxprim.input as input
   9 import gfxprim.grabbers as grabbers
  10
  11 def main():
  12     # Open grabber (i.e. web camera)
  13     grabber = grabbers.GrabberV4L2Init("/dev/video0", 320, 240);
  14     assert(grabber)
  15
  16     # Create X11 window
  17     bk = backends.BackendX11Init(None, 0, 0, grabber.frame.w, grabber.frame.h, "Grabbers test", 0)
  18     assert(bk)
  19
  20     # Start grabber capture
  21     grabber.Start();
  22
  23     # Event loop
  24     while True:
  25         sleep(0.01)
  26
  27         if (grabber.Poll()):
  28             grabber.frame.Blit(0, 0, bk.pixmap, 0, 0, grabber.frame.w, grabber.frame.h)
  29             bk.Flip()
  30
  31         ev = bk.PollEvent()
  32
  33         if (ev is None):
  34             continue
  35
  36         input.EventDump(ev)
  37
  38         if (ev.type == input.EV_KEY):
  39            exit(0)
  40         elif (ev.type == input.EV_SYS):
  41            if (ev.code == input.EV_SYS_QUIT):
  42                exit(0)
  43
  44 if __name__ == '__main__':
  45     main()