web/src/decrypt/util.js

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JavaScript
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2020-01-21 11:03:41 +00:00
export {GetArrayBuffer, GetFileInfo, GetCoverURL, AudioMimeType}
// Also a new draft API: blob.arrayBuffer()
async function GetArrayBuffer(blobObject) {
return await new Promise(resolve => {
const reader = new FileReader();
reader.onload = (e) => {
resolve(e.target.result);
};
reader.readAsArrayBuffer(blobObject);
});
}
const AudioMimeType = {
mp3: "audio/mpeg",
flac: "audio/flac",
m4a: "audio/mp4",
ogg: "audio/ogg"
};
function GetFileInfo(artist, title, filenameNoExt, ext) {
let newArtist = "", newTitle = "";
let filenameArray = filenameNoExt.split("-");
if (filenameArray.length > 1) {
newArtist = filenameArray[0].trim();
newTitle = filenameArray[1].trim();
} else if (filenameArray.length === 1) {
newTitle = filenameArray[0].trim();
}
if (typeof artist == "string" && artist !== "") {
newArtist = artist;
}
if (typeof title == "string" && title !== "") {
newTitle = title;
}
let newFilename = newArtist + " - " + newTitle + "." + ext;
return {artist: newArtist, title: newTitle, filename: newFilename};
}
/**
* @return {string}
*/
function GetCoverURL(metadata) {
let pic_url = "";
if (metadata.common.picture !== undefined && metadata.common.picture.length > 0) {
let pic = new Blob([metadata.common.picture[0].data], {type: metadata.common.picture[0].format});
pic_url = URL.createObjectURL(pic);
}
return pic_url;
}