---
title: Video file formats – Overcast
description: To create a video proxy preview, files are transcoded.  Some file headers, especially CCTV, can be complex and difficult to decode. If there is a codec, we will do our best to support the format.  Below is a list of…
url: "https://www.overcasthq.com/docs/file-formats-overcast/"
updated: "2021-05-23"
category: Requirements
---

# Video file formats – Overcast

To create a video proxy preview, files are transcoded.  Some file headers, especially CCTV, can be complex and difficult to decode. If there is a codec, we will do our best to support the format.  Below is a list of containers and codecs  that are supported.

 

| Container | Video codecs supported with container |
| --- | --- |
| No Container | DV/DVCPRO, AVC (H.264), HEVC (H.265), MPEG-1, MPEG-2 |
| 3G2 | AVC (H.264), H.263, MPEG-4 part 2 |
| 3GP | AVC (H.264), H.263, MPEG-4 part 2 |
| Audio Video Interleave (AVI) | Uncompressed, Canopus HQ, DivX/Xvid, DV/DVCPRO |
| Adobe Flash | AVC (H.264), Flash 9 File, H.263 |
| Matroska | AVC (H.264), PCM, MPEG-2, MPEG-4 part 2, VC-1 |
| IMF | Apple ProRes, JPEG 2000 (J2K) |
| MPEG Program Streams (MPEG-PS) | MPEG-2 |
| MPEG Transport Streams (MPEG-TS) | AVC (H.264), HEVC (H.265), MPEG-2, VC-1 |
| MPEG-1 System Streams | MPEG-1, MPEG-2 |
| MPEG-4 | Uncompressed, AVC Intra 50/100, DivX/Xvid, H.261, H.262, H.263, AVC (H.264), HEVC (H.265), JPEG 2000, MPEG-2, MPEG-4 part 2, VC-1 |
| MXF | Uncompressed, Apple ProRes ([supported types](https://docs.aws.amazon.com/mediaconvert/latest/ug/supported-types-for-apple-prores-inputs.html)), AVC Intra 50/100, VC-3, DV/DVCPRO, DV25, DV50, DVCPro HD, AVC (H.264), JPEG 2000 (J2K), MPEG-2, Panasonic P2, SonyXDCam, SonyXDCam MPEG-4 Proxy |
| QuickTime | Uncompressed, Apple ProRes ([supported types](https://docs.aws.amazon.com/mediaconvert/latest/ug/supported-types-for-apple-prores-inputs.html)), AVC Intra 50/100, DivX/Xvid, DV/DVCPRO, H.261, H.262, H.263, AVC (H.264), HEVC (H.265), JPEG 2000 (J2K), MJPEG, MPEG-2, MPEG-4 part 2, QuickTime Animation (RLE) |
| WebM | VP8, VP9 |
| WMV/ASF | VC-1 |

 

 

**Apple formats that are supported include:**

- Apple ProRes 4444 XQ
- Apple ProRes 4444
- Apple ProRes 422 HQ
- Apple ProRes 422
- Apple ProRes LT
- Apple ProRes Proxy