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135 lines
2.8 KiB
Python
Executable File
135 lines
2.8 KiB
Python
Executable File
# Copy a video file, interactively, frame-by-frame.
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import sys
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import getopt
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from gl import *
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from DEVICE import *
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import VFile
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import string
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import imageop
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def report(time, iframe):
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print 'Frame', iframe, ': t =', time
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def usage():
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sys.stderr.write('usage: vcopy [-t type] [-m treshold] [-a] infile outfile\n')
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sys.stderr.write('-t Convert to other type\n')
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sys.stderr.write('-a Automatic\n')
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sys.stderr.write('-m Convert grey to mono with treshold\n')
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sys.stderr.write('-d Convert grey to mono with dithering\n')
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sys.exit(2)
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def help():
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print 'Command summary:'
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print 'n get next image from input'
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print 'w write current image to output'
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def main():
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foreground()
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opts, args = getopt.getopt(sys.argv[1:], 't:am:d')
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if len(args) <> 2:
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usage()
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[ifile, ofile] = args
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print 'open film ', ifile
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ifilm = VFile.VinFile().init(ifile)
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print 'open output ', ofile
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ofilm = VFile.VoutFile().init(ofile)
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ofilm.setinfo(ifilm.getinfo())
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use_grabber = 0
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continuous = 0
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tomono = 0
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tomonodither = 0
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for o, a in opts:
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if o == '-t':
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ofilm.format = a
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use_grabber = 1
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if o == '-a':
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continuous = 1
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if o == '-m':
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if ifilm.format <> 'grey':
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print '-m only supported for greyscale'
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sys.exit(1)
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tomono = 1
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treshold = string.atoi(a)
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ofilm.format = 'mono'
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if o == '-d':
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if ifilm.format <> 'grey':
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print '-m only supported for greyscale'
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sys.exit(1)
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tomonodither = 1
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ofilm.format = 'mono'
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ofilm.writeheader()
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#
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prefsize(ifilm.width, ifilm.height)
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w = winopen(ifile)
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qdevice(KEYBD)
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qdevice(ESCKEY)
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qdevice(WINQUIT)
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qdevice(WINSHUT)
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print 'qdevice calls done'
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#
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help()
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#
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time, data, cdata = ifilm.getnextframe()
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ifilm.showframe(data, cdata)
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iframe = 1
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report(time, iframe)
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#
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while 1:
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if continuous:
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dev = KEYBD
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else:
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dev, val = qread()
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if dev in (ESCKEY, WINQUIT, WINSHUT):
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break
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if dev == REDRAW:
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reshapeviewport()
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elif dev == KEYBD:
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if continuous:
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c = '0'
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else:
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c = chr(val)
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#XXX Debug
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if c == 'R':
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c3i(255,0,0)
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clear()
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if c == 'G':
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c3i(0,255,0)
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clear()
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if c == 'B':
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c3i(0,0,255)
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clear()
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if c == 'w' or continuous:
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if use_grabber:
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data, cdata = ofilm.grabframe()
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if tomono:
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data = imageop.grey2mono(data, \
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ifilm.width, ifilm.height, \
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treshold)
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if tomonodither:
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data = imageop.dither2mono(data, \
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ifilm.width, ifilm.height)
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ofilm.writeframe(time, data, cdata)
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print 'Frame', iframe, 'written.'
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if c == 'n' or continuous:
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try:
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time,data,cdata = ifilm.getnextframe()
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ifilm.showframe(data, cdata)
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iframe = iframe+1
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report(time, iframe)
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except EOFError:
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print 'EOF'
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if continuous:
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break
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ringbell()
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elif dev == INPUTCHANGE:
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pass
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else:
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print '(dev, val) =', (dev, val)
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ofilm.close()
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main()
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