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110 lines
2.4 KiB
Python
110 lines
2.4 KiB
Python
#
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# The Python Imaging Library
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# $Id$
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#
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# split an animation into a number of frame files
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#
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from __future__ import print_function
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from PIL import Image
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import os, sys
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class Interval:
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def __init__(self, interval = "0"):
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self.setinterval(interval)
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def setinterval(self, interval):
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self.hilo = []
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for s in interval.split(","):
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if not s.strip():
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continue
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try:
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v = int(s)
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if v < 0:
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lo, hi = 0, -v
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else:
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lo = hi = v
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except ValueError:
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i = s.find("-")
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lo, hi = int(s[:i]), int(s[i+1:])
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self.hilo.append((hi, lo))
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if not self.hilo:
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self.hilo = [(sys.maxsize, 0)]
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def __getitem__(self, index):
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for hi, lo in self.hilo:
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if hi >= index >= lo:
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return 1
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return 0
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# --------------------------------------------------------------------
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# main program
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html = 0
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if sys.argv[1:2] == ["-h"]:
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html = 1
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del sys.argv[1]
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if not sys.argv[2:]:
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print()
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print("Syntax: python explode.py infile template [range]")
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print()
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print("The template argument is used to construct the names of the")
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print("individual frame files. The frames are numbered file001.ext,")
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print("file002.ext, etc. You can insert %d to control the placement")
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print("and syntax of the frame number.")
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print()
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print("The optional range argument specifies which frames to extract.")
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print("You can give one or more ranges like 1-10, 5, -15 etc. If")
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print("omitted, all frames are extracted.")
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sys.exit(1)
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infile = sys.argv[1]
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outfile = sys.argv[2]
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frames = Interval(",".join(sys.argv[3:]))
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try:
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# check if outfile contains a placeholder
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outfile % 1
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except TypeError:
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file, ext = os.path.splitext(outfile)
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outfile = file + "%03d" + ext
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ix = 1
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im = Image.open(infile)
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if html:
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file, ext = os.path.splitext(outfile)
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html = open(file+".html", "w")
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html.write("<html>\n<body>\n")
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while 1:
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if frames[ix]:
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im.save(outfile % ix)
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print(outfile % ix)
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if html:
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html.write("<img src='%s'><br>\n" % outfile % ix)
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try:
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im.seek(ix)
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except EOFError:
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break
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ix = ix + 1
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if html:
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html.write("</body>\n</html>\n")
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