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88 lines
2.5 KiB
Python
88 lines
2.5 KiB
Python
"""Functions for normalizing image resolutions"""
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import contextlib
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NAMED_RESOLUTIONS = {
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"HD": (1280, 720),
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"FHD": (1920, 1080),
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"HALF-FHD": (960, 540),
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"2K": (2048, 1080),
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"4K": (3840, 2160),
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"8K": (7680, 4320),
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"16K": (15360, 8640),
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"VGA": (640, 480),
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"SVGA": (800, 600),
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"XGA": (1024, 768),
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"SXGA": (1280, 1024),
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"WXGA+": (1440, 900),
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"HD+": (1600, 900),
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"UXGA": (1600, 1200),
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"WSXGA+": (1680, 1050),
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"WUXGA": (1920, 1200),
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"QWXGA": (2048, 1152),
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"QXGA": (2048, 1536),
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"UWFHD": (2560, 1080),
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"QHD": (2560, 1440),
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"WQXGA": (2560, 1600),
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"UWQHD": (3440, 1440),
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"240p": (426, 240),
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"360p": (640, 360),
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"480p": (854, 480),
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"720p": (1280, 720),
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"1080p": (1920, 1080),
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"1440p": (2560, 1440),
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"2160p": (3840, 2160),
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"NTSC": (720, 480),
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"PAL": (720, 576),
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"QVGA": (320, 240),
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"WVGA": (800, 480),
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"FWVGA": (854, 480),
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"WSVGA": (1024, 600),
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"HDV": (1440, 1080),
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"WQHD": (2560, 1440),
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"UW-UXGA": (2560, 1080),
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"UHD": (3840, 2160),
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"UHD+": (5120, 2880),
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"SVD": (1024, 576), # stable video diffusion
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}
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NAMED_RESOLUTIONS = {k.upper(): v for k, v in NAMED_RESOLUTIONS.items()}
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def normalize_image_size(resolution: str | int | tuple[int, int]) -> tuple[int, int]:
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size = _normalize_image_size(resolution)
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if any(s <= 0 for s in size):
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msg = f"Invalid resolution: {resolution!r}"
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raise ValueError(msg)
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return size
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def _normalize_image_size(resolution: str | int | tuple[int, int]) -> tuple[int, int]:
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match resolution:
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case (int(), int()):
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return resolution # type: ignore
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case int():
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return resolution, resolution
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case str():
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resolution = resolution.strip().upper()
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resolution = resolution.replace(" ", "").replace("X", ",").replace("*", ",")
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if resolution.upper() in NAMED_RESOLUTIONS:
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return NAMED_RESOLUTIONS[resolution.upper()]
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# is it WIDTH,HEIGHT format?
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try:
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width, height = resolution.split(",")
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return int(width), int(height)
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except ValueError:
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pass
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# is it just a single number?
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with contextlib.suppress(ValueError):
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return int(resolution), int(resolution)
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msg = f"Invalid resolution: '{resolution}'"
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raise ValueError(msg)
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case _:
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msg = f"Invalid resolution: {resolution!r}"
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raise ValueError(msg)
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