---
agentTools:
  projectIndex: https://docs.rainway.com/llms.txt
---

# Web SDK - IVideoCodec.data

[Home](https://docs.rainway.com/reference/about) > [@rainway/web](web-sdk) > [IVideoCodec](./web-sdk-ivideocodec) > [data](./web-sdk-ivideocodec-data)

## IVideoCodec.data property

Bytes encoding a "Parameter Set" for this codec. In particular, data\[5..7] are the "avcoti" bytes that can be used to construct a MIME type string like `video/mp4; codecs="avc1.42001e"`.

<b>Signature:</b>

```typescript
data: Uint8Array;
```