cpython/Demo/sgi/video/vinfo.py

91 lines
1.8 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 main():
delta = 0
short = 0
try:
opts, names = getopt.getopt(sys.argv[1:], 'ds')
except getopt.error, msg:
sys.stderr.write(msg + '\n')
sys.stderr.write('usage: vinfo [-d] [-s] [file] ...\n')
sys.exit(2)
for opt, arg in opts:
if opt == '-d': delta = 1 # print delta between frames
elif opt == '-s': short = 1 # short: don't print times
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
if pf == 0:
size = w*h*4
else:
size = (w/pf) * (h/pf)
print name, ':', w, 'x', h, '; pf =', pf, ', size =', size,
if pf == 0:
print '(color)',
else:
print '(' + `(w/pf)` + 'x' + `(h/pf)` + ')',
if (w/pf)%4 <> 0: print '!!!',
print
num = 0
try:
otijd = 0
while not short:
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()