cpython/Demo/sgi/video/vinfo.py

81 lines
1.6 KiB
Python
Executable File

from gl import *
from GL import *
from DEVICE import *
import time
import sys
import getopt
class Struct(): pass
epoch = Struct()
EndOfFile = 'End of file'
bye = 'bye'
def openvideo(filename):
f = open(filename, 'r')
line = f.readline()
if not line: raise EndOfFile
if line[:4] == 'CMIF': line = f.readline()
x = eval(line[:-1])
if len(x) == 3: w, h, pf = x
else: w, h = x; pf = 2
return f, w, h, pf
def loadframe(f, w, h, pf):
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
f.seek(size, 1)
return tijd
def saveframe(name, w, h, tijd, data):
f = open(name, 'w')
f.write(`w,h` + '\n')
f.write(`tijd` + '\n')
f.write(data)
f.close()
def main():
delta = 0
opts, names = getopt.getopt(sys.argv[1:], 'd')
for opt, arg in opts:
if opt == '-d': delta = 1
if names == []:
names = ['film.video']
for name in names:
try:
f, w, h, pf = openvideo(name)
except:
sys.stderr.write(name + ': cannot open\n')
continue
print name, ':', w, 'x', h, '; pf =', pf
num = 0
try:
otijd = 0
while 1:
try:
tijd = loadframe(f, w, h, pf)
if delta: print '\t', tijd-otijd,
else: print '\t', tijd,
otijd = tijd
num = num + 1
if num % 8 == 0:
print
except EndOfFile:
raise bye
except bye:
pass
if num % 8 <> 0:
print
f.close()
main()