feat: metadata setting

need to update vertd next

optimizes metadata code too (oops)

messages/en.json

@@ -77,7 +77,7 @@
 			"vertd_not_found": "Could not find the vertd instance to start video conversion. Are you sure the instance URL is set correctly?",
 			"worker_downloading": "The {type} converter is currently being initialized, please wait a few moments.",
 			"worker_error": "The {type} converter had an error during initialization, please try again later.",
-			"worker_timeout": "The {type} converter is taking longer than expected to initialize, please wait a few moments.",
+			"worker_timeout": "The {type} converter is taking longer than expected to initialize, please wait a few more moments or refresh the page.",
 			"audio": "audio",
 			"doc": "document",
 			"image": "image"
@@ -104,6 +104,10 @@
 			"filename_format": "File name format",
 			"filename_description": "This will determine the name of the file on download, <b>not including the file extension.</b> You can put these following templates in the format, which will be replaced with the relevant information: <b>%name%</b> for the original file name, <b>%extension%</b> for the original file extension, and <b>%date%</b> for a date string of when the file was converted.",
 			"placeholder": "VERT_%name%",
+			"metadata": "File metadata",
+			"metadata_description": "This changes whether any metadata (EXIF, song info, etc.) on the original file is preserved in converted files.",
+			"keep": "Keep",
+			"remove": "Remove",
 			"quality": "Conversion quality",
 			"quality_description": "This changes the default output quality of the converted files (in its category). Higher values may result in longer conversion times and file size.",
 			"quality_video": "This changes the default output quality of the converted video files. Higher values may result in longer conversion times and file size.",

src/lib/converters/ffmpeg.svelte.ts

@@ -83,9 +83,9 @@ export class FFmpegConverter extends Converter {
 			(async () => {
 				const baseURL =
 					"https://cdn.jsdelivr.net/npm/@ffmpeg/core@0.12.10/dist/esm";
-				
+
 				this.status = "downloading";
-				
+
 				await this.ffmpeg.load({
 					coreURL: `${baseURL}/ffmpeg-core.js`,
 					wasmURL: `${baseURL}/ffmpeg-core.wasm`,
@@ -289,8 +289,23 @@ export class FFmpegConverter extends Converter {
 		const userSampleRate = Settings.instance.settings.ffmpegSampleRate;
 		const customSampleRate =
 			Settings.instance.settings.ffmpegCustomSampleRate ?? 44100;
+		const keepMetadata = Settings.instance.settings.metadata;
+
 		let audioBitrateArgs: string[] = [];
 		let sampleRateArgs: string[] = [];
+		let metadataArgs: string[] = [];
+
+		log(["converters", this.name], `keep metadata: ${keepMetadata}`);
+		if (!keepMetadata) {
+			metadataArgs = [
+				"-map_metadata", // remove metadata
+				"-1",
+				"-map_chapters", // remove chapters
+				"-1",
+				"-map", // remove cover art
+				"a",
+			];
+		}
 
 		const isLosslessToLossy =
 			lossless.includes(inputFormat) && !lossless.includes(outputFormat);
@@ -366,6 +381,7 @@ export class FFmpegConverter extends Converter {
 				"input",
 				"-map",
 				"0:a:0",
+				...metadataArgs,
 				...audioBitrateArgs,
 				...sampleRateArgs,
 				"output" + to,
@@ -379,7 +395,9 @@ export class FFmpegConverter extends Converter {
 				`Converting audio ${input.from} to video ${to}`,
 			);
 
-			const hasAlbumArt = await this.extractAlbumArt(ffmpeg);
+			const hasAlbumArt = keepMetadata
+				? await this.extractAlbumArt(ffmpeg)
+				: false;
 			const codecArgs = toArgs(to);
 
 			if (hasAlbumArt) {
@@ -402,6 +420,7 @@ export class FFmpegConverter extends Converter {
 					"-r",
 					"1",
 					...codecArgs,
+					...metadataArgs,
 					...audioBitrateArgs,
 					...sampleRateArgs,
 					"output" + to,
@@ -421,6 +440,7 @@ export class FFmpegConverter extends Converter {
 					"-r",
 					"1",
 					...codecArgs,
+					...metadataArgs,
 					...audioBitrateArgs,
 					...sampleRateArgs,
 					"output" + to,
@@ -439,6 +459,7 @@ export class FFmpegConverter extends Converter {
 			"input",
 			"-c:a",
 			audioCodec,
+			...metadataArgs,
 			...audioBitrateArgs,
 			...sampleRateArgs,
 			"output" + to,

src/lib/converters/magick.svelte.ts

@@ -139,6 +139,8 @@ export class MagickConverter extends Converter {
 		}
 
 		// every other format handled by magick worker
+		const keepMetadata: boolean = Settings.instance.settings.metadata ?? true;
+		log(["converters", this.name], `keep metadata: ${keepMetadata}`);
 		const msg = {
 			type: "convert",
 			input: {
@@ -149,6 +151,7 @@ export class MagickConverter extends Converter {
 			},
 			to,
 			compression,
+			keepMetadata,
 		} as WorkerMessage;
 		const res = await this.sendMessage(msg);
 

src/lib/sections/settings/Conversion.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
 	import FancyTextInput from "$lib/components/functional/FancyInput.svelte";
 	import Panel from "$lib/components/visual/Panel.svelte";
-	import { RefreshCwIcon } from "lucide-svelte";
+	import { PauseIcon, PlayIcon, RefreshCwIcon } from "lucide-svelte";
 	import type { ISettings } from "./index.svelte";
 	import {
 		CONVERSION_BITRATES,
@@ -12,6 +12,7 @@
 	import { m } from "$lib/paraglide/messages";
 	import Dropdown from "$lib/components/functional/Dropdown.svelte";
 	import FancyInput from "$lib/components/functional/FancyInput.svelte";
+	import { effects } from "$lib/store/index.svelte";
 
 	const { settings }: { settings: ISettings } = $props();
 </script>
@@ -43,6 +44,43 @@
 					type="text"
 				/>
 			</div>
+			<div class="flex flex-col gap-4">
+				<div class="flex flex-col gap-2">
+					<p class="text-base font-bold">
+						{m["settings.conversion.metadata"]()}
+					</p>
+					<p class="text-sm text-muted font-normal italic">
+						{m["settings.conversion.metadata_description"]()}
+					</p>
+				</div>
+				<div class="flex flex-col gap-3 w-full">
+					<div class="flex gap-3 w-full">
+						<button
+							onclick={() => (settings.metadata = true)}
+							class="btn {$effects
+								? ''
+								: '!scale-100'} {settings.metadata
+								? 'selected'
+								: ''} flex-1 p-4 rounded-lg text-black dynadark:text-white flex items-center justify-center"
+						>
+							<PlayIcon size="24" class="inline-block mr-2" />
+							{m["settings.conversion.keep"]()}
+						</button>
+
+						<button
+							onclick={() => (settings.metadata = false)}
+							class="btn {$effects
+								? ''
+								: '!scale-100'} {settings.metadata
+								? ''
+								: 'selected'} flex-1 p-4 rounded-lg text-black dynadark:text-white flex items-center justify-center"
+						>
+							<PauseIcon size="24" class="inline-block mr-2" />
+							{m["settings.conversion.remove"]()}
+						</button>
+					</div>
+				</div>
+			</div>
 			<div class="flex flex-col gap-4">
 				<div class="flex flex-col gap-2">
 					<p class="text-base font-bold">
@@ -100,7 +138,9 @@
 						/>
 					</div>
 					<div class="flex flex-col gap-2">
-						<p class="text-sm font-bold select-none">&nbsp;&nbsp;</p>
+						<p class="text-sm font-bold select-none">
+							&nbsp;&nbsp;
+						</p>
 						<FancyInput
 							bind:value={
 								settings.ffmpegCustomSampleRate as unknown as string

src/lib/sections/settings/index.svelte.ts

@@ -7,8 +7,10 @@ export { default as Conversion } from "./Conversion.svelte";
 export { default as Vertd } from "./Vertd.svelte";
 export { default as Privacy } from "./Privacy.svelte";
 
+// TODO: clean up settings & button code (componetize)
 export interface ISettings {
 	filenameFormat: string;
+	metadata: boolean;
 	plausible: boolean;
 	vertdURL: string;
 	vertdSpeed: ConversionSpeed; // videos
@@ -23,6 +25,7 @@ export class Settings {
 
 	public settings: ISettings = $state({
 		filenameFormat: "VERT_%name%",
+		metadata: true,
 		plausible: true,
 		vertdURL: PUB_VERTD_URL,
 		vertdSpeed: "slow",

src/lib/types/conversion-worker.ts

@@ -5,6 +5,7 @@ interface ConvertMessage {
 	input: VertFile;
 	to: string;
 	compression: number | null;
+	keepMetadata?: boolean;
 }
 
 interface FinishedMessage {

src/lib/workers/magick.ts

@@ -26,6 +26,7 @@ const handleMessage = async (message: any): Promise<any> => {
 	switch (message.type) {
 		case "convert": {
 			const compression: number | undefined = message.compression;
+			const keepMetadata: boolean = message.keepMetadata ?? true;
 			if (!message.to.startsWith(".")) message.to = `.${message.to}`;
 			message.to = message.to.toLowerCase();
 			if (message.to === ".jfif") message.to = ".jpeg";
@@ -69,6 +70,7 @@ const handleMessage = async (message: any): Promise<any> => {
 						const output = await magickConvert(
 							img,
 							message.to,
+							keepMetadata,
 							compression,
 						);
 						convertedImgs[i] = output;
@@ -111,6 +113,7 @@ const handleMessage = async (message: any): Promise<any> => {
 									}),
 								),
 								message.to,
+								keepMetadata,
 								compression,
 							);
 							files.push(
@@ -161,6 +164,7 @@ const handleMessage = async (message: any): Promise<any> => {
 							const converted = await magickConvert(
 								img,
 								message.to,
+								keepMetadata,
 								compression,
 							);
 							outputs.push(converted);
@@ -225,57 +229,11 @@ const handleMessage = async (message: any): Promise<any> => {
 				}),
 			);
 
-			// extract metadata
-			let metadata: Map<string, string> | undefined;
-			try {
-				metadata = new Map();
-
-				const exifProfile = img.getProfile("exif");
-				if (exifProfile) {
-					metadata.set("exif:profile", "true");
-				}
-
-				const iccProfile = img.getProfile("icc");
-				if (iccProfile) {
-					metadata.set("icc:profile", "true");
-				}
-
-				const attributeNames = img.attributeNames;
-				if (attributeNames && attributeNames.length > 0) {
-					for (const attrName of attributeNames) {
-						try {
-							if (
-								attrName.startsWith("exif:") ||
-								attrName.startsWith("icc:") ||
-								attrName.startsWith("date:") ||
-								attrName.startsWith("tiff:") ||
-								attrName.startsWith("xmp:") ||
-								attrName.startsWith("iptc:")
-							) {
-								const value = img.getAttribute(attrName);
-								if (value) {
-									metadata.set(attrName, value);
-								}
-							}
-						} catch {
-							// do nothing
-						}
-					}
-				}
-
-				console.log(`Parsed ${metadata.size} metadata values`);
-
-				if (metadata.size === 0) metadata = undefined;
-			} catch (e) {
-				console.warn("Failed to extract metadata:", e);
-				metadata = undefined;
-			}
-
 			const converted = await magickConvert(
 				img,
 				message.to,
+				keepMetadata,
 				compression,
-				metadata,
 			);
 
 			return {
@@ -305,8 +263,8 @@ const readToEnd = async (reader: ReadableStreamDefaultReader<Uint8Array>) => {
 const magickConvert = async (
 	img: IMagickImage,
 	to: string,
+	keepMetadata: boolean,
 	compression?: number,
-	originalMetadata?: Map<string, string>,
 ) => {
 	let fmt = to.slice(1).toUpperCase();
 	if (fmt === "JFIF") fmt = "JPEG";
@@ -314,16 +272,7 @@ const magickConvert = async (
 	const result = await new Promise<Uint8Array>((resolve) => {
 		// magick-wasm automatically clamps (https://github.com/dlemstra/magick-wasm/blob/76fc6f2b0c0497d2ddc251bbf6174b4dc92ac3ea/src/magick-image.ts#L2480)
 		if (compression) img.quality = compression;
-
-		if (originalMetadata) {
-			originalMetadata.forEach((value, key) => {
-				try {
-					if (!key.endsWith(":profile")) img.setAttribute(key, value);
-				} catch (e) {
-					console.warn(`Failed to set metadata ${key}: ${e}`);
-				}
-			});
-		}
+		if (!keepMetadata) img.strip();
 
 		img.write(fmt as unknown as MagickFormat, (o: Uint8Array) => {
 			resolve(structuredClone(o));