Claudio Ortolina
28 lines
684 B
Elixir
28 lines
684 B
Elixir
defmodule MusicLibrary.Records.Cover do
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alias Vix.Vips.{Image, Operation}
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fallback_path = Application.app_dir(:music_library, ["priv", "cover-not-found.jpg"])
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fallback_data = File.read!(fallback_path)
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@external_resource fallback_path
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@size 2000
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def fallback_data, do: unquote(fallback_data)
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def resize(cover_data, size \\ @size) do
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{:ok, thumb} = Operation.thumbnail_buffer(cover_data, size)
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Image.write_to_buffer(thumb, ".jpg")
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end
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def hash(cover_data) do
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:crypto.hash(:sha256, cover_data) |> Base.encode16()
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end
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def correct_size?(cover_data) do
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{:ok, image} = Image.new_from_buffer(cover_data)
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Image.width(image) == @size
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end
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end
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