Add angular example (#653)

apps/angular-app/src/app/app.component.html

@@ -0,0 +1,111 @@
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * The content below * * * * * * * * * * * -->
+<!-- * * * * * * * * * * is only a placeholder * * * * * * * * * * -->
+<!-- * * * * * * * * * * and can be replaced.  * * * * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * Delete the template below * * * * * * * * * -->
+<!-- * * * * * * * to get started with your project! * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+
+<style>
+  :host {
+    --bright-blue: oklch(51.01% 0.274 263.83);
+    --electric-violet: oklch(53.18% 0.28 296.97);
+    --french-violet: oklch(47.66% 0.246 305.88);
+    --vivid-pink: oklch(69.02% 0.277 332.77);
+    --hot-red: oklch(61.42% 0.238 15.34);
+    --orange-red: oklch(63.32% 0.24 31.68);
+
+    --gray-900: oklch(19.37% 0.006 300.98);
+    --gray-700: oklch(36.98% 0.014 302.71);
+    --gray-400: oklch(70.9% 0.015 304.04);
+
+    --red-to-pink-to-purple-vertical-gradient: linear-gradient(
+      180deg,
+      var(--orange-red) 0%,
+      var(--vivid-pink) 50%,
+      var(--electric-violet) 100%
+    );
+
+    --red-to-pink-to-purple-horizontal-gradient: linear-gradient(
+      90deg,
+      var(--orange-red) 0%,
+      var(--vivid-pink) 50%,
+      var(--electric-violet) 100%
+    );
+
+    --pill-accent: var(--bright-blue);
+
+    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
+      Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
+      "Segoe UI Symbol";
+    box-sizing: border-box;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+  }
+
+  h1 {
+    font-size: 3.125rem;
+    color: var(--gray-900);
+    font-weight: 500;
+    line-height: 100%;
+    letter-spacing: -0.125rem;
+    margin: 0;
+    font-family: "Inter Tight", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
+      Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
+      "Segoe UI Symbol";
+  }
+
+  p {
+    margin: 0;
+    color: var(--gray-700);
+  }
+
+  main {
+    width: 100%;
+    min-height: 100%;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    padding: 1rem;
+    box-sizing: inherit;
+    position: relative;
+  }
+
+  @media screen and (max-width: 650px) {
+    .content {
+      flex-direction: column;
+      width: max-content;
+    }
+
+    .divider {
+      height: 1px;
+      width: 100%;
+      background: var(--red-to-pink-to-purple-horizontal-gradient);
+      margin-block: 1.5rem;
+    }
+  }
+</style>
+
+<main class="main">
+  <div *ngIf="loaded">
+    <video src="{{ videoURL }}" controls></video>
+    <br />
+    <button (click)="transcode()">Transcode avi to mp4</button>
+    <p>{{ message }}</p>
+  </div>
+  <div *ngIf="!loaded">
+    <button (click)="load()">Load ffmpeg-core</button>
+  </div>
+</main>
+
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * The content above * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * is only a placeholder * * * * * * * * * * * -->
+<!-- * * * * * * * * * * and can be replaced.  * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * End of Placeholder  * * * * * * * * * * * * -->
+<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
+
+
+<router-outlet></router-outlet>

apps/angular-app/src/app/app.component.spec.ts

@@ -0,0 +1,29 @@
+import { TestBed } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [AppComponent],
+    }).compileComponents();
+  });
+
+  it('should create the app', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app).toBeTruthy();
+  });
+
+  it(`should have the 'angular-app' title`, () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app.title).toEqual('angular-app');
+  });
+
+  it('should render title', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.nativeElement as HTMLElement;
+    expect(compiled.querySelector('h1')?.textContent).toContain('Hello, angular-app');
+  });
+});

apps/angular-app/src/app/app.component.ts

@@ -0,0 +1,48 @@
+import { Component } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { RouterOutlet } from '@angular/router';
+import { FFmpeg } from '@ffmpeg/ffmpeg';
+import { fetchFile, toBlobURL } from '@ffmpeg/util';
+
+const baseURL = "https://unpkg.com/@ffmpeg/core-mt@0.12.5/dist/esm";
+
+@Component({
+  selector: 'app-root',
+  standalone: true,
+  imports: [CommonModule, RouterOutlet],
+  templateUrl: './app.component.html',
+  styleUrl: './app.component.css',
+})
+export class AppComponent {
+  loaded = false;
+  ffmpeg = new FFmpeg();
+  videoURL = "";
+  message = "";
+  async load() {
+    this.ffmpeg.on("log", ({ message }) => {
+      this.message = message;
+    });
+    await this.ffmpeg.load({
+      coreURL: await toBlobURL(`${baseURL}/ffmpeg-core.js`, "text/javascript"),
+      wasmURL: await toBlobURL(
+        `${baseURL}/ffmpeg-core.wasm`,
+        "application/wasm"
+      ),
+      workerURL: await toBlobURL(
+        `${baseURL}/ffmpeg-core.worker.js`,
+        "text/javascript"
+      ),
+    });
+    this.loaded = true;
+  };
+  async transcode() {
+    const videoURL = "https://raw.githubusercontent.com/ffmpegwasm/testdata/master/video-15s.avi";
+    await this.ffmpeg.writeFile("input.avi", await fetchFile(videoURL));
+    await this.ffmpeg.exec(["-i", "input.avi", "output.mp4"]);
+    const fileData = await this.ffmpeg.readFile('output.mp4');
+    const data = new Uint8Array(fileData as ArrayBuffer);
+    this.videoURL = URL.createObjectURL(
+      new Blob([data.buffer], { type: 'video/mp4' })
+    );
+  };
+}

apps/angular-app/src/app/app.config.ts

@@ -0,0 +1,8 @@
+import { ApplicationConfig } from '@angular/core';
+import { provideRouter } from '@angular/router';
+
+import { routes } from './app.routes';
+
+export const appConfig: ApplicationConfig = {
+  providers: [provideRouter(routes)]
+};

apps/angular-app/src/app/app.routes.ts

@@ -0,0 +1,3 @@
+import { Routes } from '@angular/router';
+
+export const routes: Routes = [];

apps/angular-app/src/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>AngularApp</title>
+  <base href="/">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body>
+  <app-root></app-root>
+</body>
+</html>

apps/angular-app/src/main.ts

@@ -0,0 +1,6 @@
+import { bootstrapApplication } from '@angular/platform-browser';
+import { appConfig } from './app/app.config';
+import { AppComponent } from './app/app.component';
+
+bootstrapApplication(AppComponent, appConfig)
+  .catch((err) => console.error(err));

apps/angular-app/src/styles.css

@@ -0,0 +1 @@
+/* You can add global styles to this file, and also import other style files */