mirror of https://github.com/VERT-sh/VERT.git
89 lines
2.7 KiB
TypeScript
89 lines
2.7 KiB
TypeScript
import { VertFile } from "$lib/types";
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import { Converter, FormatInfo } from "./converter.svelte";
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import { FFmpeg } from "@ffmpeg/ffmpeg";
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import { browser } from "$app/environment";
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import { error, log } from "$lib/logger";
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import { addToast } from "$lib/store/ToastProvider";
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import { m } from "$lib/paraglide/messages";
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export class FFmpegConverter extends Converter {
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private ffmpeg: FFmpeg = null!;
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public name = "ffmpeg";
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public ready = $state(false);
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public supportedFormats = [
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new FormatInfo("mp3", true, true),
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new FormatInfo("wav", true, true),
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new FormatInfo("flac", true, true),
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new FormatInfo("ogg", true, true),
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new FormatInfo("oga", true, true),
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new FormatInfo("opus", true, true),
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new FormatInfo("aac", true, true),
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new FormatInfo("m4a", true, true),
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new FormatInfo("wma", true, true),
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new FormatInfo("amr", true, true),
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new FormatInfo("ac3", true, true),
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new FormatInfo("alac", true, false),
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new FormatInfo("aiff", true, true),
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new FormatInfo("aif", true, true),
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];
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public readonly reportsProgress = true;
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constructor() {
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super();
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log(["converters", this.name], `created converter`);
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if (!browser) return;
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try {
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// this is just to cache the wasm and js for when we actually use it. we're not using this ffmpeg instance
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this.ffmpeg = new FFmpeg();
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(async () => {
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const baseURL =
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"https://cdn.jsdelivr.net/npm/@ffmpeg/core@0.12.10/dist/esm";
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await this.ffmpeg.load({
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coreURL: `${baseURL}/ffmpeg-core.js`,
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wasmURL: `${baseURL}/ffmpeg-core.wasm`,
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});
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this.ready = true;
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})();
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} catch (err) {
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error(["converters", this.name], `error loading ffmpeg: ${err}`);
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addToast(
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"error",
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m["workers.errors.ffmpeg"](),
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);
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}
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}
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public async convert(input: VertFile, to: string): Promise<VertFile> {
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if (!to.startsWith(".")) to = `.${to}`;
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const ffmpeg = new FFmpeg();
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ffmpeg.on("progress", (progress) => {
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input.progress = progress.progress * 100;
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});
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const baseURL =
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"https://cdn.jsdelivr.net/npm/@ffmpeg/core@0.12.6/dist/esm";
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await ffmpeg.load({
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coreURL: `${baseURL}/ffmpeg-core.js`,
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wasmURL: `${baseURL}/ffmpeg-core.wasm`,
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});
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const buf = new Uint8Array(await input.file.arrayBuffer());
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await ffmpeg.writeFile("input", buf);
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log(
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["converters", this.name],
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`wrote ${input.name} to ffmpeg virtual fs`,
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);
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await ffmpeg.exec(["-i", "input", "output" + to]);
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log(["converters", this.name], `executed ffmpeg command`);
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const output = (await ffmpeg.readFile(
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"output" + to,
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)) as unknown as Uint8Array;
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log(
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["converters", this.name],
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`read ${input.name.split(".").slice(0, -1).join(".") + to} from ffmpeg virtual fs`,
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);
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ffmpeg.terminate();
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return new VertFile(new File([output], input.name), to);
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}
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}
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