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import getopt
from gl import *
from GL import *
from DEVICE import *
import time
import sys
import al
import AL
sys.path.append('/ufs/guido/src/video') # Increase chance to find colorsys
import colorsys
BUFFERSIZE = 32000
class Struct(): pass
epoch = Struct()
epoch.correcttiming = 1
EndOfFile = 'End of file'
bye = 'bye'
def openspkr():
conf = al.newconfig()
conf.setqueuesize(BUFFERSIZE)
conf.setwidth(AL.SAMPLE_16)
conf.setchannels(AL.MONO)
return al.openport('spkr','w',conf)
def openvideo(name):
try:
f = open(name, 'r')
except:
sys.stderr.write(name + ': cannot open\n')
sys.exit(1)
line = f.readline()
if not line: raise EndOfFile
colorinfo = (8, 0, 0, 0)
if line[:4] == 'CMIF':
if line[:14] == 'CMIF video 2.0':
line = f.readline()
colorinfo = eval(line[:-1])
line = f.readline()
x = eval(line[:-1])
if len(x) == 3: w, h, pf = x
else: w, h = x; pf = 2
if pf and w/pf % 4 <> 0:
sys.stderr.write( \
'warning: stride not a multiple of 4 -- may not work on Indigo XS\n')
return f, w, h, pf, colorinfo
def loadframe(f,w,h,pf,af,spkr, (ybits,ibits,qbits,chrompack),mf):
line = f.readline()
if line == '':
raise EndOfFile
x = eval(line[:-1])
if type(x) == type(0) or type(x) == type(0.0):
tijd = x
if pf == 0:
size = w*h*4
else:
size = (w/pf) * (h/pf)
else:
tijd, size = x
data = f.read(size)
if len(data) <> size:
raise EndOfFile
if pf:
w = w/pf
h = h/pf
if chrompack:
cw = (w+chrompack-1)/chrompack
ch = (h+chrompack-1)/chrompack
chromdata = f.read(2*cw*ch)
rectzoom(pf*chrompack*mf,pf*chrompack*mf)
pixmode(PM_SIZE,16)
writemask(0x7ff - ((1<<ybits)-1))
lrectwrite(0,0,cw-1,ch-1,chromdata)
writemask((1<<ybits)-1)
pixmode(PM_SIZE,8)
if pf:
rectzoom(pf*mf, pf*mf)
elif mf <> 1:
rectzoom(mf,mf)
lrectwrite(0,0,w-1,h-1,data)
# This is ugly here, but the only way to get the two
# channels started in sync
#if af <> None:
# playsound(af,spkr)
ct = time.millitimer() - epoch.epoch
if epoch.correcttiming and tijd > 0 and ct < tijd:
time.millisleep(tijd-ct)
#swapbuffers()
return tijd
def initcmap(ybits,ibits,qbits,chrompack):
if ybits+ibits+qbits > 11:
raise 'Sorry, 11 bits max'
maxy = pow(2,ybits)
maxi = pow(2,ibits)
maxq = pow(2,qbits)
for i in range(2048,4096-256):
mapcolor(i, 0, 255, 0)
for y in range(maxy):
yv = float(y)/float(maxy-1)
for i in range(maxi):
if maxi == 1: iv = 0
else: iv = (float(i)/float(maxi-1))-0.5
for q in range(maxq):
if maxq == 1: qv = 0
else: qv = (float(q)/float(maxq-1))-0.5
index = 2048 + y + (i << ybits) + (q << (ybits+ibits))
rv,gv,bv = colorsys.yiq_to_rgb(yv,iv,qv)
r,g,b = int(rv*255.0), int(gv*255.0), int(bv*255.0)
if index < 4096 - 256:
mapcolor(index, r,g,b)
def playsound(af, spkr):
nsamp = spkr.getfillable()
data = af.read(nsamp*2)
spkr.writesamps(data)
def main():
looping = 0
packfactor = 0
magfactor = 1
try:
opts, args = getopt.getopt(sys.argv[1:], 'm:p:lF')
except getopt.error:
sys.stderr.write('usage: video ' + \
'[-l] [-p pf] [-m mag] [-F] [moviefile [soundfile [skipbytes]]]\n')
sys.exit(2)
for opt, arg in opts:
if opt == '-m':
magfactor = int(eval(arg))
elif opt == '-p':
packfactor = int(eval(arg))
elif opt == '-l':
looping = 1
elif opt == '-F':
epoch.correcttiming = 0
if args:
filename = args[0]
else:
filename = 'film.video'
f, w, h, pf, cinfo = openvideo(filename)
if 0 < packfactor <> pf:
w = w/pf*packfactor
h = h/pf*packfactor
pf = packfactor
if args[1:]:
audiofilename = args[1]
af = open(audiofilename, 'r')
spkr = openspkr()
afskip = 0
if args[2:]:
afskip = eval(args[2])
af.seek(afskip)
else:
af, spkr = None, None
foreground()
prefsize(w*magfactor,h*magfactor)
win = winopen(filename)
if pf:
#doublebuffer()
cmode()
else:
RGBmode()
#doublebuffer()
gconfig()
if pf:
initcmap(cinfo)
color(2048)
clear()
writemask(2047)
pixmode(PM_SIZE,8) # 8 bit pixels
qdevice(ESCKEY)
qdevice(WINSHUT)
qdevice(WINQUIT)
running = 1
epoch.epoch = time.millitimer()
nframe = 0
tijd = 1
if looping:
looping = f.tell()
try:
while 1:
if running:
try:
tijd = loadframe(f, w, h, pf, af, spkr, cinfo,magfactor)
nframe = nframe + 1
except EndOfFile:
running = 0
t = time.millitimer()
if tijd > 0:
print 'Recorded at',
print 0.1 * int(nframe * 10000.0 / tijd),
print 'frames/sec'
print 'Played', nframe, 'frames at',
print 0.1 * int(nframe * 10000.0 / (t-epoch.epoch)),
print 'frames/sec'
if looping:
f.seek(looping)
epoch.epoch = time.millitimer()
nframe = 0
running = 1
if af <> None:
af.seek(afskip)
if af <> None:
playsound(af,spkr)
if not running or qtest():
dev, val = qread()
if dev in (ESCKEY, WINSHUT, WINQUIT):
raise bye
elif dev == REDRAW:
reshapeviewport()
except bye:
pass
main()
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