feat: add audio channel test, av sync test

.gitignore

@@ -1,3 +1,6 @@
+assets/generated/*
+!assets/generated/.gitkeep
+
 .DS_Store
 node_modules
 /build

Earthfile

@@ -1,6 +1,30 @@
 VERSION 0.7
 FROM node:lts
 
+site:
+    RUN npm install -g pnpm
+    COPY package.json pnpm-lock.yaml /site
+    WORKDIR /site
+    CACHE --id=pnpm $HOME/.local/share/pnpm
+    RUN pnpm install --frozen-lockfile --prod
+    COPY . /site
+    COPY +assets-generated/* /site/assets/generated
+    RUN pnpm build
+    SAVE ARTIFACT build AS LOCAL build
+
+deploy:
+    FROM alpine
+    RUN apk add openssh-client rsync
+    RUN --secret SSH_CONFIG --secret SSH_UPLOAD_KEY --secret SSH_KNOWN_HOSTS \
+        mkdir -p $HOME/.ssh && \
+        echo "$SSH_CONFIG" > $HOME/.ssh/config && \
+        echo "$SSH_UPLOAD_KEY" > $HOME/.ssh/id_rsa && \
+        echo "$SSH_KNOWN_HOSTS" > $HOME/.ssh/known_hosts && \
+        chmod 600 $HOME/.ssh/*
+    COPY +site/build /build
+    RUN --secret SSH_TARGET --push rsync -cvrz --delete /build/ $SSH_TARGET
+
+
 avsync-video-components:
     # https://pptr.dev/troubleshooting
     RUN apt-get update && apt-get -y install libgtk-3-dev libnotify-dev libgconf-2-4 libnss3 libxss1 libasound2 && rm -rf /var/lib/apt/lists/*
@@ -16,8 +40,8 @@ avsync-video-components:
     ARG CYCLES=16
     ARG SIZE=1200
     RUN pnpm av:render:video --fps $FPS --cycles 1 --size $SIZE --output /var/tmp/frames
-    RUN pnpm av:render:audio -i beep.wav -o /var/tmp/track.wav --repeats $CYCLES
     SAVE ARTIFACT /var/tmp/frames
+    RUN pnpm av:render:audio -i beep.wav -o /var/tmp/track.wav --repeats $CYCLES
     SAVE ARTIFACT /var/tmp/track.wav
 
 avsync-video:
@@ -76,25 +100,7 @@ audio-channel-tracks-mp3:
         for file in /output/wav/7.1/*.wav; do ffmpeg -i $file -c:a libmp3lame /output/mp3/7.1/$(basename $file .wav).mp3 -hide_banner -loglevel error; done
     SAVE ARTIFACT /output/mp3
 
-site:
-    RUN npm install -g pnpm
-    COPY package.json pnpm-lock.yaml /site
-    WORKDIR /site
-    CACHE --id=pnpm $HOME/.local/share/pnpm
-    RUN pnpm install --frozen-lockfile --prod
-    COPY . /site
-    RUN pnpm build
-    SAVE ARTIFACT build AS LOCAL build
-
-deploy:
-    FROM alpine
-    RUN apk add openssh-client rsync
-    RUN --secret SSH_CONFIG --secret SSH_UPLOAD_KEY --secret SSH_KNOWN_HOSTS \
-        mkdir -p $HOME/.ssh && \
-        echo "$SSH_CONFIG" > $HOME/.ssh/config && \
-        echo "$SSH_UPLOAD_KEY" > $HOME/.ssh/id_rsa && \
-        echo "$SSH_KNOWN_HOSTS" > $HOME/.ssh/known_hosts && \
-        chmod 600 $HOME/.ssh/*
-    COPY +site/build /build
-    RUN --secret SSH_TARGET --push rsync -cvrz --delete /build/ $SSH_TARGET
-
+assets-generated:
+    COPY +avsync-video/avsync.webm /assets/avsync.webm
+    COPY +audio-channel-tracks-mp3/mp3 /assets/audio/
+    SAVE ARTIFACT /assets/* AS LOCAL assets/generated/

package.json

@@ -10,6 +10,7 @@
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"lint": "prettier --check . && eslint .",
 		"format": "prettier --write .",
+		"generate-assets": "earthly +assets-generated",
 		"av:dev": "cd av-sync && vite",
 		"av:render:video": "cd av-sync && concurrently -P -k -s command-1 \"vite --port 8626\" \"wait-on http://localhost:8626 && node render-video.js --url http://localhost:8626 {@}\" --",
 		"av:render:audio": "cd av-sync && node render-audio.js"

src/routes/+layout.svelte

@@ -25,7 +25,7 @@
 
 <TestCard full={onlyCard} on:focus={() => goto('/card')} />
 <main class:content={!onlyCard} class:sub={$page.url.pathname !== '/' && !onlyCard}>
-	<a href="/" class="button button-back"><i class="ti ti-arrow-back" />Back</a>
+	<a href=".." class="button button-back"><i class="ti ti-arrow-back" />Back</a>
 	<slot />
 </main>
 

src/routes/+page.svelte

@@ -9,10 +9,14 @@
 			<i class="ti ti-device-desktop"></i>
 			Screen
 		</a>
-		<a href="audio" class="disabled">
+		<a href="audio">
 			<i class="ti ti-volume"></i>
 			Audio
 		</a>
+		<a href="av-sync" class="disabled">
+			<i class="ti ti-time-duration-off"></i>
+			AV&nbsp;Sync
+		</a>
 		<a href="keyboard">
 			<i class="ti ti-keyboard"></i>
 			Keyboard

src/routes/audio/+layout.svelte

@@ -0,0 +1,5 @@
+<script lang="ts">
+</script>
+
+<h2><i class="ti ti-volume"></i> Audio test</h2>
+<slot />

src/routes/audio/+layout.ts

@@ -0,0 +1 @@
+export const trailingSlash = 'always';

src/routes/audio/+page.svelte

@@ -0,0 +1,20 @@
+<h3>Channel tests</h3>
+<ul>
+	<li><a href="channels/stereo">Stereo</a></li>
+	<li><a href="channels/5.1">5.1 Surround</a></li>
+	<li><a href="channels/7.1">7.1 Surround</a></li>
+</ul>
+
+<style>
+	ul {
+		list-style-type: none;
+		padding: 0;
+		margin: 0;
+
+		display: flex;
+		gap: 1rem;
+	}
+	li {
+		margin-bottom: 10px;
+	}
+</style>

src/routes/audio/channels/+layout.svelte

@@ -0,0 +1,82 @@
+<script lang="ts">
+	import { onDestroy } from 'svelte';
+
+	let channelsEl: HTMLDivElement;
+
+	let cycling = false;
+	async function cycleChannels() {
+		cycling = true;
+		const buttons = channelsEl.querySelectorAll('button');
+		buttons.forEach((button) => (button.disabled = true));
+		const channels = channelsEl.querySelectorAll('audio');
+		while (cycling) {
+			for (const channel of channels) {
+				await channel.play();
+				await new Promise((resolve) => {
+					channel.onended = resolve;
+				});
+				if (!cycling) {
+					break;
+				}
+			}
+		}
+		buttons.forEach((button) => (button.disabled = false));
+	}
+
+	function startCycle() {
+		cycling = !cycling;
+		if (cycling) {
+			cycleChannels();
+		}
+	}
+
+	onDestroy(() => {
+		cycling = false;
+	});
+</script>
+
+<div class="channels" bind:this={channelsEl}>
+	<slot />
+</div>
+<div class="controls">
+	<button on:click={startCycle}>Cycle all</button>
+</div>
+
+<style>
+	.channels {
+		display: flex;
+		flex-direction: column;
+		justify-content: space-evenly;
+		font-size: 2rem;
+		flex-grow: 1;
+
+		position: relative;
+	}
+
+	:global(.channels .row) {
+		display: flex;
+		justify-content: space-between;
+	}
+
+	.controls {
+		text-align: center;
+		margin: 2rem 0;
+		font-size: 1.5rem;
+	}
+
+	:global(.channels .center) {
+		font-size: 0.9em;
+	}
+
+	:global(.channels .label) {
+		opacity: 0.33;
+		font-size: 6rem;
+
+		position: absolute;
+		top: 50%;
+		left: 50%;
+		transform: translate(-50%, -50%);
+
+		pointer-events: none;
+	}
+</style>

src/routes/audio/channels/+page.svelte

@@ -0,0 +1,8 @@
+<script lang="ts">
+	import { onMount } from 'svelte';
+	import { goto } from '$app/navigation';
+
+	onMount(() => {
+		goto('..');
+	});
+</script>

src/routes/audio/channels/5.1/+page.svelte

@@ -0,0 +1,24 @@
+<script lang="ts">
+	import Speaker from '../speaker.svelte';
+	import frontLeftUrl from '@assets/audio/5.1/Front_Left.mp3';
+	import frontCenterUrl from '@assets/audio/5.1/Front_Center.mp3';
+	import frontRightUrl from '@assets/audio/5.1/Front_Right.mp3';
+	import rearLeftUrl from '@assets/audio/5.1/Rear_Left.mp3';
+	import rearRightUrl from '@assets/audio/5.1/Rear_Right.mp3';
+	import LfeUrl from '@assets/audio/5.1/LFE_Noise.mp3';
+</script>
+
+<div class="row">
+	<Speaker src={frontLeftUrl} left>Front Left</Speaker>
+	<div class="center">
+		<Speaker src={frontCenterUrl} center>Front Center</Speaker>
+	</div>
+	<Speaker src={frontRightUrl} right>Front Right</Speaker>
+</div>
+<div class="row">
+	<Speaker src={rearLeftUrl} left>Rear Left</Speaker>
+	<Speaker src={rearRightUrl} right>Rear Right</Speaker>
+</div>
+<Speaker src={LfeUrl} lfe>LFE</Speaker>
+
+<div class="label">5.1</div>

src/routes/audio/channels/7.1/+page.svelte

@@ -0,0 +1,31 @@
+<script lang="ts">
+	import Speaker from '../speaker.svelte';
+	import frontLeftUrl from '@assets/audio/7.1/Front_Left.mp3';
+	import frontCenterUrl from '@assets/audio/7.1/Front_Center.mp3';
+	import frontRightUrl from '@assets/audio/7.1/Front_Right.mp3';
+	import sideLeftUrl from '@assets/audio/7.1/Side_Left.mp3';
+	import sideRightUrl from '@assets/audio/7.1/Side_Right.mp3';
+	import rearLeftUrl from '@assets/audio/7.1/Rear_Left.mp3';
+	import rearRightUrl from '@assets/audio/7.1/Rear_Right.mp3';
+	import LfeUrl from '@assets/audio/7.1/LFE_Noise.mp3';
+</script>
+
+<div class="row">
+	<Speaker src={frontLeftUrl} left>Front Left</Speaker>
+	<div class="center">
+		<Speaker src={frontCenterUrl} center>Front Center</Speaker>
+	</div>
+	<Speaker src={frontRightUrl} right>Front Right</Speaker>
+</div>
+<div class="row">
+	<Speaker src={sideLeftUrl} left>Side Left</Speaker>
+	<Speaker src={sideRightUrl} right>Side Right</Speaker>
+</div>
+
+<div class="row">
+	<Speaker src={rearLeftUrl} left>Rear Left</Speaker>
+	<Speaker src={rearRightUrl} right>Rear Right</Speaker>
+</div>
+<Speaker src={LfeUrl} lfe>LFE</Speaker>
+
+<div class="label">7.1</div>

src/routes/audio/channels/speaker.svelte

@@ -0,0 +1,68 @@
+<script lang="ts">
+	import { createEventDispatcher, onMount } from 'svelte';
+	const dispatch = createEventDispatcher<{ end: void }>();
+
+	export let src: string;
+	export let left = false;
+	export let center = false;
+	export let right = false;
+	export let lfe = false;
+
+	let currentTime = 0;
+	let paused = true;
+	function play() {
+		currentTime = 0;
+		paused = false;
+	}
+</script>
+
+<button
+	class="speaker"
+	class:left
+	class:right
+	class:center
+	class:lfe
+	class:playing={!paused}
+	on:click={play}
+>
+	{#if !lfe}
+		<i class="ti ti-volume"></i>
+	{:else}
+		<i class="ti ti-wave-sine"></i>
+	{/if}
+	<label><slot /></label>
+	<audio bind:currentTime bind:paused {src}></audio>
+</button>
+
+<style>
+	.speaker {
+		border: none;
+		background: transparent;
+
+		display: inline-flex;
+		flex-direction: column;
+		text-align: center;
+
+		& .ti {
+			font-size: 3em;
+		}
+
+		&.right .ti {
+			display: block;
+			transform: rotate(180deg);
+		}
+
+		&.center .ti {
+			display: block;
+			transform: rotate(90deg);
+		}
+
+		&:disabled {
+			opacity: 0.33;
+		}
+
+		&.playing {
+			opacity: 0.66;
+		}
+	}
+</style>

src/routes/audio/channels/stereo/+page.svelte

@@ -0,0 +1,14 @@
+<script lang="ts">
+	import Speaker from '../speaker.svelte';
+	import leftUrl from '@assets/audio/stereo/Left.mp3';
+	import centerUrl from '@assets/audio/stereo/Center.mp3';
+	import rightUrl from '@assets/audio/stereo/Right.mp3';
+</script>
+
+<div class="row">
+	<Speaker src={leftUrl} left>Left</Speaker>
+	<div class="center">
+		<Speaker src={centerUrl} center>Center</Speaker>
+	</div>
+	<Speaker src={rightUrl} right>Right</Speaker>
+</div>

src/routes/av-sync/+page.svelte

@@ -0,0 +1,30 @@
+<script lang="ts">
+	import videoUrl from '@assets/avsync.webm';
+	let paused = true;
+</script>
+
+<h2><i class="ti ti-time-duration-off"></i> Audio/Video Synchronization</h2>
+<!-- svelte-ignore a11y-media-has-caption -->
+<video
+	class:playing={!paused}
+	autoplay
+	loop
+	bind:paused
+	src={videoUrl}
+	on:click={() => (paused = false)}
+></video>
+
+<style>
+	video {
+		flex-grow: 1;
+
+		&:not(.playing) {
+			opacity: 0.5;
+			filter: grayscale(0.8);
+		}
+
+		transition:
+			opacity 0.3s,
+			filter 0.3s;
+	}
+</style>

vite.config.ts

@@ -1,6 +1,17 @@
 import { sveltekit } from '@sveltejs/kit/vite';
 import { defineConfig } from 'vite';
+import * as path from 'path';
 
 export default defineConfig({
-	plugins: [sveltekit()]
+	plugins: [sveltekit()],
+	resolve: {
+		alias: {
+			'@assets': path.join(__dirname, 'assets/generated')
+		}
+	},
+	server: {
+		fs: {
+			allow: [path.join(__dirname, 'assets/generated')]
+		}
+	}
 });