mirror of https://github.com/python/cpython
166 lines
3.2 KiB
Python
Executable File
166 lines
3.2 KiB
Python
Executable File
#! /ufs/guido/bin/sgi/python
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# Play CMIF movie files
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# Help function
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def help():
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print 'Usage: Vplay [options] [file] ...'
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print
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print 'Options:'
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print '-q : quiet, no informative messages'
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print '-m : create monochrome (greyscale) image files'
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print '-f prefix : create image files with names "prefix000.rgb"'
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print 'file ... : file(s) to play; default film.video'
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# Imported modules
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import sys
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sys.path.append('/ufs/guido/src/video') # Increase chance of finding VFile
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import VFile
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import time
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import getopt
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import string
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import imgfile
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import imgconv
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# Global options
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quiet = 0
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prefix = 'film'
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seqno = 0
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mono = 0
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# Main program -- mostly command line parsing
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def main():
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global quiet, prefix, mono
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# Parse command line
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'qmf:')
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except getopt.error, msg:
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sys.stdout = sys.stderr
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print 'Error:', msg, '\n'
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help()
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sys.exit(2)
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# Interpret options
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try:
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for opt, arg in opts:
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if opt == '-q': quiet = 1
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if opt == '-f': prefix = arg
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if opt == '-m': mono = 1
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except string.atoi_error:
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sys.stdout = sys.stderr
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print 'Option', opt, 'requires integer argument'
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sys.exit(2)
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# Process all files
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if not args: args = ['film.video']
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sts = 0
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for filename in args:
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sts = (process(filename) or sts)
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# Exit with proper exit status
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sys.exit(sts)
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# Process one movie file
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def process(filename):
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try:
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vin = VFile.VinFile().init(filename)
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except IOError, msg:
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sys.stderr.write(filename + ': I/O error: ' + `msg` + '\n')
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return 1
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except VFile.Error, msg:
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sys.stderr.write(msg + '\n')
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return 1
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except EOFError:
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sys.stderr.write(filename + ': EOF in video header\n')
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return 1
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if not quiet:
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vin.printinfo()
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width, height = int(vin.width), int(vin.height)
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try:
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if mono:
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cf = imgconv.getconverter(vin.format, 'grey')
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else:
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cf = imgconv.getconverter(vin.format, 'rgb')
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except imgconv.error:
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print 'Sorry, no converter available for type',vin.format
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return
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if mono:
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depth = 1
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else:
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depth = 3
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pf = testpackfactor(vin.packfactor)
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if pf == None:
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print 'Sorry, packfactor not supported:', vin.packfactor
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convert(vin, cf, width, height, depth, pf)
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def convert(vin, cf, width, height, depth, pf):
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global seqno
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while 1:
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try:
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time, data, cdata = vin.getnextframe()
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except EOFError:
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return
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if cdata:
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print 'Film contains chromdata!'
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return
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if pf:
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data = applypackfactor(data, width, height, pf)
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s = `seqno`
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s = '0'*(4-len(s)) + s
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fname = prefix + s + '.rgb'
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seqno = seqno + 1
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if not quiet:
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print 'Writing',fname,'...'
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imgfile.write(fname, data, width, height, depth)
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def testpackfactor(pf):
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if type(pf) == type(()):
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xpf, ypf = pf
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else:
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if pf in (0, 1):
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return 0
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return None
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if xpf <> 1:
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return None
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return pf
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def applypackfactor(image, w, h, pf):
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if type(pf) == type(()):
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xpf, ypf = pf
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else:
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xpf = ypf = 1
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rows = []
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for i in range(0, (w*h+ypf-1)/abs(ypf), w):
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rows.append(image[i:i+w])
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if ypf < 0:
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rows.reverse()
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ypf = -ypf
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image = ''
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for i in range(0, h):
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image = image + rows[i/ypf]
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return image
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# Don't forget to call the main program
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try:
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main()
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except KeyboardInterrupt:
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print '[Interrupt]'
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