mirror of https://github.com/python/cpython.git
130 lines
2.4 KiB
Python
130 lines
2.4 KiB
Python
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import sys
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from socket import *
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from gl import *
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from GL import *
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from DEVICE import *
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from time import millitimer
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HS = 40 # Header size (must be same as in tv.py)
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# Rely on UDP packet (de)fragmentation for smoother images
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# (Changed for broadcast)
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MAX = 16000
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PF = 2 # Default packfactor
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# Default receiver station is voorn.
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# Kwik has no yellow pages, so...
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HOST = '192.16.201.121'
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PORT = 5555
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if sys.argv[1:]:
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PF = eval(sys.argv[1])
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if sys.argv[2:]:
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HOST = sys.argv[2]
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if HOST = 'all':
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HOST = '<broadcast>'
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MAX = 1400
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PF2 = PF*PF
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def main():
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centerx, centery = 400, 300
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foreground()
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wid = winopen('cam')
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RGBmode()
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doublebuffer()
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gconfig()
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qdevice(ESCKEY)
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w, h = getsize()
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ortho2(0, w, 0, h)
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w = w/PF*PF
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h = h/PF*PF
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readsource(SRC_FRAMEGRABBER)
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s = socket(AF_INET, SOCK_DGRAM)
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if HOST = '<broadcast>':
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s.allowbroadcast(1)
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addr = HOST, PORT
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bytesperline = w/PF2
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linesperchunk = MAX/bytesperline
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linesperchunk = linesperchunk/PF*PF
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nchunks = (h+linesperchunk-1)/linesperchunk
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print 'MAX=', MAX,
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print 'linesperchunk=', linesperchunk,
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print 'nchunks=', nchunks,
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print 'w=', w, 'h=', h
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x1, x2 = 0, w-1
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t1 = millitimer()
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nframes = 0
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fps = 0
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msg = ''
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while 1:
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while qtest():
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dev, val = qread()
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if dev = REDRAW:
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reshapeviewport()
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w, h = getsize()
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ortho2(0, w, 0, h)
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w = w/PF*PF
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h = h/PF*PF
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bytesperline = w/PF2
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linesperchunk = MAX/bytesperline
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linesperchunk = linesperchunk/PF*PF
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nchunks = (h+linesperchunk-1)/linesperchunk
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print 'MAX=', MAX,
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print 'linesperchunk=', linesperchunk,
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print 'nchunks=', nchunks,
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print 'w=', w, 'h=', h
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x1, x2 = 0, w-1
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fps = 0
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elif dev = ESCKEY:
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winclose(wid)
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return
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readsource(SRC_FRAMEGRABBER)
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nframes = nframes+1
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if nframes >= fps:
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t2 = millitimer()
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if t2 <> t1:
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fps = int(10000.0*nframes/(t2-t1)) * 0.1
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msg = `fps` + ' frames/sec'
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t1 = t2
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nframes = 0
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RGBcolor(255,255,255)
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cmov2i(9,9)
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charstr(msg)
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swapbuffers()
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rectcopy(centerx-w/2, centery-w/2, centerx+w/2, centery+w/2, 0, 0)
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for i in range(nchunks):
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y1 = i*linesperchunk
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y2 = y1 + linesperchunk-1
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if y2 >= h: y2 = h-1
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data = lrectread(x1, y1, x2, y2)
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data2 = packrect(x2-x1+1, y2-y1+1, PF, data)
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prefix = `w, h, PF, x1, y1, x2, y2`
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prefix = prefix + ' ' * (HS-len(prefix))
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data3 = prefix + data2
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s.sendto(data3, addr)
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main()
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