> ## Documentation Index
> Fetch the complete documentation index at: https://docs.livepeer.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Video on demand overview

> Concepts for VOD in Livepeer Studio: assets, playback, recordings, clips, and encrypted assets.

An **asset** in Livepeer Studio is a video object you create by uploading a file, or by creating a **recording** or **clip** from a stream. Assets have a unique ID and **playback ID**; Livepeer handles storage, transcoding, and playback URLs.

## Creating assets

* **Upload** - Use the [Asset upload API](https://livepeer.studio/docs/api-reference/asset/upload) (TUS resumable recommended) or [upload via URL](https://livepeer.studio/docs/api-reference/asset/upload-via-url). See [Upload an asset](./upload-asset).
* **Recording** - When recording is enabled on a stream, the session can be stored as an asset when the stream ends.
* **Clip** - Clips created from a livestream are stored as assets. See [Clip a livestream](../livestream/clip-livestream).

Webhooks: `asset.created`, `asset.updated`, `asset.ready`, `asset.failed`, `asset.deleted`.

## Playback

* Use the **playback ID** with the [Livepeer Player](../player) or the [Playback Info API](https://livepeer.studio/docs/api-reference/playback/get) to get HLS/MP4 URLs.
* Short assets may have MP4 renditions for fast time-to-first-frame; longer assets use HLS. Viewership metrics are available via the [viewership API](https://livepeer.studio/docs/api-reference/viewership/get-viewership-metrics).

## Encrypted assets

You can upload **encrypted** video (AES-CBC, key encrypted with Livepeer's public key) and control access via [access control](../access-control/overview). See [Encrypted assets](./encrypted-assets).

## Guides

* [Upload an asset](./upload-asset)
* [Play an asset](./playback-asset)
* [Encrypted assets](./encrypted-assets)
* [Thumbnails (VOD)](./thumbnails-vod)
* [Transcode video](./transcode-video)