Add @mediabunny/dts extension package

docs/guide/extensions/dts.md

@@ -0,0 +1,37 @@
+---
+description: The @mediabunny/dts extension provides fast DTS decoders and encoders for both browser and server environments.
+---
+
+# @mediabunny/dts
+
+Browsers have no support for the DTS audio codec in their WebCodecs implementations. This extension package provides both a decoder and encoder for use with Mediabunny, allowing you to decode and encode this codec directly in the browser. It is implemented using Mediabunny's [custom coder API](../supported-formats-and-codecs#custom-coders) and uses a fast, size-optimized WASM build of [FFmpeg](https://ffmpeg.org/)'s DTS coders under the hood.
+
+<a class="!no-underline inline-flex items-center gap-1.5" :no-icon="true" href="https://github.com/Vanilagy/mediabunny/blob/main/packages/dts/README.md">
+	GitHub page
+	<span class="vpi-arrow-right" />
+</a>
+
+## Installation
+
+This library peer-depends on Mediabunny. Install both using npm:
+```bash
+npm install mediabunny @mediabunny/dts
+```
+
+Alternatively, directly include them using a script tag:
+```html
+<script src="mediabunny.js"></script>
+<script src="mediabunny-dts.js"></script>
+```
+
+This will expose the global objects `Mediabunny` and `MediabunnyDts`. Use `mediabunny-dts.d.ts` to provide types for these globals. You can download the built distribution files from the [releases page](https://github.com/Vanilagy/mediabunny/releases).
+
+## Usage
+
+```ts
+import { registerDtsDecoder, registerDtsEncoder } from '@mediabunny/dts';
+
+registerDtsDecoder();
+registerDtsEncoder();
+```
+That's it - Mediabunny now uses the registered DTS decoder and encoder automatically.