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