1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
#!/ufs/guido/bin/sgi/python-405
# Receive live video UDP packets.
# Usage: Vreceive [port]
import sys
import struct
from socket import *
import select
import gl, GL, DEVICE
sys.path.append('/ufs/guido/src/video')
import LiveVideoOut
PKTMAX = 16*1024
WIDTH = 400
HEIGHT = 300
HOST = ''
PORT = 5555
def main():
port = PORT
if sys.argv[1:]:
port = eval(sys.argv[1])
width, height = WIDTH, HEIGHT
gl.foreground()
gl.prefsize(width, height)
wid = gl.winopen('Vreceive')
gl.qdevice(DEVICE.ESCKEY)
gl.qdevice(DEVICE.WINSHUT)
gl.qdevice(DEVICE.WINQUIT)
x, y = gl.getorigin()
lvo = LiveVideoOut.LiveVideoOut().init(wid, (x, y, width, height), \
width, height)
s = socket(AF_INET, SOCK_DGRAM)
s.bind(HOST, port)
ifdlist = [gl.qgetfd(), s.fileno()]
ofdlist = []
xfdlist = []
timeout = 1.0
selectargs = (ifdlist, ofdlist, xfdlist, timeout)
while 1:
if gl.qtest():
dev, val = gl.qread()
if dev in (DEVICE.ESCKEY, \
DEVICE.WINSHUT, DEVICE.WINQUIT):
break
if dev == DEVICE.REDRAW:
gl.clear()
elif s.avail():
data = s.recv(16*1024)
pos, w, h = struct.unpack('hhh', data[:6])
if (w, h) <> (width, height):
x, y = gl.getorigin()
y = y + height - h
width, height = w, h
lvo.close()
lvo = LiveVideoOut.LiveVideoOut() \
.init(wid, (x, y, width, height), \
width, height)
lvo.putnextpacket(pos, data[6:])
else:
x = select.select(selectargs)
lvo.close()
main()
|
