mirror of
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81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2018 Mike Fährmann
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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"""Convert pixiv ugoira to webm"""
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from .common import PostProcessor
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from .. import util
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import subprocess
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import tempfile
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import zipfile
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import os
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class UgoiraPP(PostProcessor):
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def __init__(self, pathfmt, options):
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PostProcessor.__init__(self)
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self.extension = options.get("extension") or "webm"
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self.args = options.get("ffmpeg-args")
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self.twopass = options.get("ffmpeg-twopass")
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self.delete = not options.get("keep-files", False)
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ffmpeg = options.get("ffmpeg-location")
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self.ffmpeg = util.expand_path(ffmpeg) if ffmpeg else "ffmpeg"
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def run(self, pathfmt):
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if (pathfmt.keywords["extension"] != "zip" or
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"frames" not in pathfmt.keywords):
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return
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framelist = [
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(frame["file"], frame["delay"] / 1000)
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for frame in pathfmt.keywords["frames"]
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]
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if self.extension != "gif":
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# repeat the last frame to prevent it from only being
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# displayed for a very short amount of time
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framelist.append(framelist[-1])
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with tempfile.TemporaryDirectory() as tempdir:
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# extract frames
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with zipfile.ZipFile(pathfmt.temppath) as zfile:
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zfile.extractall(tempdir)
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# write ffconcat file
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ffconcat = tempdir + "/ffconcat.txt"
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with open(ffconcat, "w") as file:
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file.write("ffconcat version 1.0\n")
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for name, duration in framelist:
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file.write("file '{}'\n".format(name))
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file.write("duration {}\n".format(duration))
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# invoke ffmpeg
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pathfmt.set_extension(self.extension)
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args = [self.ffmpeg, "-i", ffconcat]
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if self.args:
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args += self.args
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if self.twopass:
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if "-f" not in args:
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args += ["-f", self.extension]
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null = "NUL" if os.name == "nt" else "/dev/null"
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args += ["-passlogfile", tempdir + "/ffmpeg2pass", "-pass"]
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subprocess.Popen(args + ["1", "-y", null]).wait()
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subprocess.Popen(args + ["2", pathfmt.realpath]).wait()
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else:
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args.append(pathfmt.realpath)
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subprocess.Popen(args).wait()
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if self.delete:
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pathfmt.delete = True
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else:
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pathfmt.set_extension("zip")
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__postprocessor__ = UgoiraPP
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