mirror of https://github.com/python/cpython
95 lines
1.9 KiB
Python
95 lines
1.9 KiB
Python
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#!/ufs/guido/bin/sgi/python-405
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# Send live video UDP packets.
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# Usage: Vsend [host [port]]
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import sys
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import time
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import struct
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from socket import *
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import gl, GL, DEVICE
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sys.path.append('/ufs/guido/src/video')
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import LiveVideoIn
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import LiveVideoOut
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PKTMAX_UCAST = 16*1024 - 6
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PKTMAX_BCAST = 1450
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WIDTH = 400
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HEIGHT = 300
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HOST = '<broadcast>'
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PORT = 5555
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def main():
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if not LiveVideoIn.have_video:
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print 'Sorry, no video (use python-405 on roos)'
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sys.exit(1)
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host = HOST
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port = PORT
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if sys.argv[1:]:
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host = sys.argv[1]
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if sys.argv[2:]:
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port = eval(sys.argv[2])
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if host == '<broadcast>':
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pktmax = PKTMAX_BCAST
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else:
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pktmax = PKTMAX_UCAST
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gl.foreground()
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gl.prefsize(WIDTH, HEIGHT)
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wid = gl.winopen('Vsend')
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gl.keepaspect(WIDTH, HEIGHT)
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gl.stepunit(8, 6)
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gl.winconstraints()
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gl.qdevice(DEVICE.ESCKEY)
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gl.qdevice(DEVICE.WINSHUT)
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gl.qdevice(DEVICE.WINQUIT)
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width, height = gl.getsize()
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x, y = gl.getorigin()
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lvo = LiveVideoOut.LiveVideoOut().init(wid, (x, y, width, height), \
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width, height)
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lvi = LiveVideoIn.LiveVideoIn().init(pktmax, width, height)
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s = socket(AF_INET, SOCK_DGRAM)
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s.allowbroadcast(1)
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while 1:
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if gl.qtest():
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dev, val = gl.qread()
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if dev in (DEVICE.ESCKEY, \
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DEVICE.WINSHUT, DEVICE.WINQUIT):
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break
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if dev == DEVICE.REDRAW:
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w, h = gl.getsize()
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x, y = gl.getorigin()
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if (w, h) <> (width, height):
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lvi.close()
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width, height = w, h
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lvi = LiveVideoIn.LiveVideoIn() \
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.init(pktmax, width, height)
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lvo.close()
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lvo = LiveVideoOut.LiveVideoOut() \
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.init(wid, \
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(x, y, width, height), \
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width, height)
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rv = lvi.getnextpacket()
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if not rv:
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time.millisleep(10)
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continue
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pos, data = rv
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lvo.putnextpacket(pos, data)
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hdr = struct.pack('hhh', pos, width, height)
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s.sendto(hdr + data, (host, port))
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lvi.close()
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lvo.close()
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main()
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