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115 lines
3.5 KiB
115 lines
3.5 KiB
#!/usr/bin/env python
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# Copyright (C) 2014 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Script to take a set of frames (PNG files) for a recovery animation
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and turn it into a single output image which contains the input frames
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interlaced by row. Run with the names of all the input frames on the
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command line, in order, followed by the name of the output file.
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"""
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from __future__ import print_function
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import argparse
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import os.path
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import sys
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try:
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import Image
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import PngImagePlugin
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except ImportError:
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print("This script requires the Python Imaging Library to be installed.")
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sys.exit(1)
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def interlace(output, inputs):
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frames = [Image.open(fn).convert("RGB") for fn in inputs]
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assert len(frames) > 0, "Must have at least one input frame."
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sizes = set()
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for fr in frames:
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sizes.add(fr.size)
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assert len(sizes) == 1, "All input images must have the same size."
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w, h = sizes.pop()
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N = len(frames)
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out = Image.new("RGB", (w, h*N))
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for j in range(h):
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for i in range(w):
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for fn, f in enumerate(frames):
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out.putpixel((i, j*N+fn), f.getpixel((i, j)))
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# When loading this image, the graphics library expects to find a text
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# chunk that specifies how many frames this animation represents. If
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# you post-process the output of this script with some kind of
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# optimizer tool (eg pngcrush or zopflipng) make sure that your
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# optimizer preserves this text chunk.
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meta = PngImagePlugin.PngInfo()
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meta.add_text("Frames", str(N))
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out.save(output, pnginfo=meta)
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def deinterlace(output, input):
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# Truncate the output filename extension if it's '.png'.
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if os.path.splitext(output)[1].lower() == '.png':
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output = output[:-4]
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img2 = Image.open(input)
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print(img2.mode)
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palette = img2.getpalette()
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img = img2.convert("RGB")
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num_frames = int(img.info.get('Frames', 1))
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print('Found %d frames in %s.' % (num_frames, input))
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assert num_frames > 0, 'Invalid Frames meta.'
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# palette = img.getpalette()
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print(palette)
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width, height = img.size
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height /= num_frames
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for k in range(num_frames):
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out = Image.new('RGB', (width, height))
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out.info = img.info
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for i in range(width):
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for j in range(height):
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out.putpixel((i, j), img.getpixel((i, j * num_frames + k)))
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# out.putpalette(img.getpalette(), rawmode='RGB')
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out2 = out.convert(mode='P', palette=palette)
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#out2 = out
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print(out2.mode)
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# out2.putpalette(palette)
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filename = '%s%02d.png' % (output, k)
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out2.save(filename)
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print('Frame %d written to %s.' % (k, filename))
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def main(argv):
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parser = argparse.ArgumentParser(description='Parse')
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parser.add_argument('--deinterlace', '-d', action='store_true')
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parser.add_argument('--output', '-o', required=True)
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parser.add_argument('input', nargs='+')
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args = parser.parse_args(argv)
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if args.deinterlace:
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# args.input is a list, and we only process the first when deinterlacing.
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deinterlace(args.output, args.input[0])
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else:
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interlace(args.output, args.input)
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if __name__ == '__main__':
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main(sys.argv[1:])
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