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https://github.com/OpenVGLab/OmniLottie.git
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73 lines
2.9 KiB
Python
73 lines
2.9 KiB
Python
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from .base import importer
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from ..parsers.baseporter import ExtraOption
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from ..parsers.pixel import (
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pixel_to_animation_paths, pixel_to_animation,
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raster_to_embedded_assets, raster_to_linked_assets
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)
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from ..parsers.svg.importer import parse_color
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try:
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from ..parsers.raster import raster_to_animation
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raster = True
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except ImportError:
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raster = False
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@importer("Raster image", ["bmp", "png", "gif", "webp", "tiff"], [
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ExtraOption("n_colors", type=int, default=1, help="Number of colors to quantize"),
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ExtraOption("palette", type=parse_color, default=[], nargs="+", help="Custom palette"),
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ExtraOption(
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"mode",
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default="embed",
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choices=["external", "embed", "pixel", "polygon"] + (["trace"] if raster else []),
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help="Vectorization mode:\n" +
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" * external : load images as linked assets\n" +
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" * embed : load images as embedded assets\n" +
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" * pixel : Vectorize the image into rectangles\n" +
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" * polygon : Vectorize the image into polygonal shapes\n" +
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" Looks the same as pixel, but a single shape per color\n" +
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" * trace : (if available) Use potrace to vectorize\n"
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),
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ExtraOption("frame_delay", type=int, default=4, help="Number of frames to skip between images"),
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ExtraOption("framerate", type=int, default=60, help="Frames per second"),
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ExtraOption("frame_files", nargs="+", default=[], help="Additional frames to import"),
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ExtraOption(
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"color_mode",
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default="nearest",
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choices=["nearest", "exact"],
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help="How to quantize colors.\n" +
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" * nearest will map each color to the most similar in the palette\n" +
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" * exact will only match exact colors"
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),
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ExtraOption(
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"embed_format",
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default=None,
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help="Format to store images internally when using `embed` mode"
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),
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])
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def import_raster(filenames, n_colors, palette, mode, frame_delay=1,
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framerate=60, frame_files=[], color_mode="nearest", embed_format=None):
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if not isinstance(filenames, list):
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filenames = [filenames]
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filenames = filenames + frame_files
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if mode == "embed":
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return raster_to_embedded_assets(filenames, frame_delay, framerate, embed_format)
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elif mode == "external":
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return raster_to_linked_assets(filenames, frame_delay, framerate)
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elif mode == "trace":
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from ..parsers.raster import QuanzationMode
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# TODO QuanzationMode for raster
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cm = QuanzationMode.Nearest if color_mode == "nearest" else QuanzationMode.Exact
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return raster_to_animation(
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filenames, n_colors, frame_delay,
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framerate=framerate,
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palette=palette,
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mode=cm
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)
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elif mode == "polygon":
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return pixel_to_animation_paths(filenames, frame_delay, framerate)
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else:
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return pixel_to_animation(filenames, frame_delay, framerate)
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