45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
const musicMetadata = require("music-metadata-browser");
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export {Decrypt}
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const audio_mime_type = {
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mp3: "audio/mpeg",
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flac: "audio/flac"
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};
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async function Decrypt(file) {
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let tag = await musicMetadata.parseBlob(file);
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let pic_url = "";
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if (tag.common.picture !== undefined && tag.common.picture.length > 0) {
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let pic = new Blob([tag.common.picture[0].data], {type: tag.common.picture[0].format});
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pic_url = URL.createObjectURL(pic);
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}
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let file_url = URL.createObjectURL(file);
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let filename_no_ext = file.name.substring(0, file.name.lastIndexOf("."));
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let filename_array = filename_no_ext.split("-");
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let filename_ext = file.name.substring(file.name.lastIndexOf(".") + 1, file.name.length).toLowerCase();
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const mime = audio_mime_type[filename_ext];
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let title = tag.common.title;
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let artist = tag.common.artist;
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if (filename_array.length > 1) {
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if (artist === undefined) artist = filename_array[0].trim();
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if (title === undefined) title = filename_array[1].trim();
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} else if (filename_array.length === 1) {
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if (title === undefined) title = filename_array[0].trim();
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}
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const filename = artist + " - " + title + "." + filename_ext;
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return {
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status:true,
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filename: filename,
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title: title,
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artist: artist,
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album: tag.common.album,
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picture: pic_url,
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file: file_url,
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mime: mime
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}
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}
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