> For the complete documentation index, see [llms.txt](https://agpt.co/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://agpt.co/docs/integrations/block-integrations/loop.md).

# Video Loop

This block repeats a video to extend its duration, either to a specific length or a set number of repetitions.

## Loop Video

### What it is

Block to loop a video to a given duration or number of repeats.

### How it works

The block uses MoviePy's Loop effect to repeat a video clip. You can specify either a target duration (the video will repeat until reaching that length) or a number of loops (the video will repeat that many times). The Loop effect handles both video and audio looping automatically, maintaining sync. Either `duration` or `n_loops` must be provided. The output is encoded with H.264 video codec and AAC audio codec.

### Inputs

| Input     | Description                                                                                      | Type       | Required |
| --------- | ------------------------------------------------------------------------------------------------ | ---------- | -------- |
| video\_in | The input video (can be a URL, data URI, or local path).                                         | str (file) | Yes      |
| duration  | Target duration (in seconds) to loop the video to. Either duration or n\_loops must be provided. | float      | No       |
| n\_loops  | Number of times to repeat the video. Either n\_loops or duration must be provided.               | int        | No       |

### Outputs

| Output     | Description                                                    | Type       |
| ---------- | -------------------------------------------------------------- | ---------- |
| error      | Error message if the operation failed                          | str        |
| video\_out | Looped video returned either as a relative path or a data URI. | str (file) |

### Possible use case

* Extending a short background video to match the length of narration audio
* Creating seamless looping content for digital signage
* Repeating a product demo video multiple times for emphasis
* Extending short clips to meet minimum duration requirements for platforms

***


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