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switch from ogg -> m4a for Mobile Safari

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This commit is contained in:
Brian Beck 2026-03-12 17:57:22 -07:00
parent 6acccfa2a8
commit 9e7604d0e4
6279 changed files with 584 additions and 591 deletions
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24
scripts/convert-wav.ts
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@ -5,10 +5,10 @@ import { parseArgs } from "node:util";
const FFMPEG_PATH = process.env.FFMPEG_PATH || "ffmpeg";
/**
* Find all .wav files in `docs/base` and convert them to Opus OGG.
* Converted .ogg files are placed alongside the originals (analogous to
* Find all .wav files in `docs/base` and convert them to AAC M4A.
* Converted .m4a files are placed alongside the originals (analogous to
* how convert-dts.ts places .glb files alongside .dts files). The manifest
* ignores .ogg files; audioToUrl() swaps the extension at resolution time.
* ignores .m4a files; audioToUrl() swaps the extension at resolution time.
*/
async function run({
onlyNew,
@ -21,11 +21,11 @@ async function run({
}) {
const inputFiles: string[] = [];
for await (const wavFile of fs.glob("docs/base/**/*.{wav,WAV}")) {
const oggFile = wavFile.replace(/\.wav$/i, ".ogg");
const m4aFile = wavFile.replace(/\.wav$/i, ".m4a");
if (onlyNew) {
try {
await fs.stat(oggFile);
continue; // .ogg already exists, skip
await fs.stat(m4aFile);
continue; // .m4a already exists, skip
} catch {
/* expected */
}
@ -39,14 +39,14 @@ async function run({
}
console.log(
`Converting ${inputFiles.length} .wav file(s) to Opus OGG (${bitrate})…`,
`Converting ${inputFiles.length} .wav file(s) to AAC M4A (${bitrate})…`,
);
let completed = 0;
let failed = 0;
async function convert(wavFile: string) {
const oggFile = wavFile.replace(/\.wav$/i, ".ogg");
const m4aFile = wavFile.replace(/\.wav$/i, ".m4a");
try {
execFileSync(
FFMPEG_PATH,
@ -55,11 +55,13 @@ async function run({
"-i",
wavFile,
"-c:a",
"libopus",
"aac",
"-b:a",
bitrate,
"-movflags",
"+faststart",
"-vn",
oggFile,
m4aFile,
],
{ stdio: "pipe" },
);
@ -97,7 +99,7 @@ const { values } = parseArgs({
},
bitrate: {
type: "string",
default: "64k",
default: "96k",
short: "b",
},
concurrency: {