53 lines
2.2 KiB
C#
53 lines
2.2 KiB
C#
using SixLabors.ImageSharp;
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using SixLabors.ImageSharp.Formats.Webp;
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using SixLabors.ImageSharp.Processing;
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namespace Photomator;
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public static class Lib {
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public static async Task Convert(string src, string dest, ConvertOptions options) {
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Image img = await Image.LoadAsync(src);
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img.Mutate(i => {
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i.AutoOrient();
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Size currentSize = i.GetCurrentSize();
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if (currentSize.Height > currentSize.Width) {
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i.Resize(options.Resolution, 0);
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} else {
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i.Resize(0, options.Resolution);
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}
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});
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await img.SaveAsWebpAsync(dest, new WebpEncoder {
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FileFormat = options.Format
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});
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}
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public static async Task<ConvertError[]> ConvertList(string[] src, string dest, ConvertOptions options, Action<double> setProgress) {
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double progress = 0;
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List<ConvertError> unconverted = [];
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await Parallel.ForEachAsync(src, new ParallelOptions { MaxDegreeOfParallelism = Environment.ProcessorCount }, async (path, _) => {
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string filename = path.Split(Path.DirectorySeparatorChar)[^1];
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string[] splitted = filename.Split('.');
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splitted[^1] = "webp";
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try {
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await Convert(path, dest + Path.DirectorySeparatorChar + string.Join(".", splitted), options);
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} catch (UnknownImageFormatException) {
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unconverted.Add(new ConvertError(filename, "Das Dateiformat wird nicht unterstützt."));
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} catch (Exception e) {
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unconverted.Add(new ConvertError(filename, e.Message));
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}
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progress += 1.0 / src.Length;
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setProgress(progress);
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});
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return [.. unconverted];
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}
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}
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public readonly struct ConvertOptions(string? resolution, uint format) {
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public int Resolution { get; init; } = resolution != null ? Convert.ToInt32(resolution) : 1440;
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public WebpFileFormatType Format { get; init; } = format == 1 ? WebpFileFormatType.Lossless : WebpFileFormatType.Lossy;
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}
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public readonly struct ConvertError(string file, string message) {
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public string File { get; init; } = file;
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public string Message { get; init; } = message;
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} |