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

# SeedVR2TemporalChunk - ComfyUI Built-in Node Documentation

> Complete documentation for the SeedVR2TemporalChunk node in ComfyUI. Learn its inputs, outputs, parameters and usage.

This node splits a SeedVR2 video latent into smaller temporal chunks that can be processed one at a time within available VRAM. It automatically calculates the optimal chunk size based on your GPU memory or lets you specify the chunk size manually, and outputs the chunks in sequence order for processing.

## Inputs

| Parameter          | Description                                                                                            | Data Type | Required | Range                    |
| ------------------ | ------------------------------------------------------------------------------------------------------ | --------- | -------- | ------------------------ |
| `latent`           | The VAE-encoded SeedVR2 latent to split. Must be a 5‑D tensor with the correct channel count.          | LATENT    | Yes      | -                        |
| `temporal_overlap` | Latent frames shared between adjacent chunks and crossfaded at merge; 0 means no overlap (default: 0). | INT       | No       | 0 to 16384               |
| `chunking_mode`    | Manual uses `frames_per_chunk` exactly; auto predicts the largest chunk that fits free VRAM.           | COMBO     | Yes      | `"auto"`<br />`"manual"` |

When `chunking_mode` is set to `"manual"`, an additional parameter becomes available:

| Parameter          | Description                                                                                     | Data Type | Required | Range      |
| ------------------ | ----------------------------------------------------------------------------------------------- | --------- | -------- | ---------- |
| `frames_per_chunk` | Pixel frames per temporal chunk. Must be a 4n+1 value (1, 5, 9, 13, 17, 21, ...) (default: 21). | INT       | Yes      | 1 to 16384 |

Note: The `frames_per_chunk` parameter only appears when `chunking_mode` is set to `"manual"`. The value must satisfy the formula `(frames_per_chunk - 1) % 4 == 0`, meaning it must be one of: 1, 5, 9, 13, 17, 21, etc. If the total pixel frames in the latent are equal to or less than the chosen chunk size, the node returns the original latent as a single chunk with zero overlap.

## Outputs

| Output Name        | Description                                                                                                                                     | Data Type |
| ------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------- | --------- |
| `latents`          | The temporal chunks in sequence order. Each chunk is a LATENT with the same batch, channel, height, and width but a reduced temporal dimension. | LATENT    |
| `temporal_overlap` | The effective latent-frame overlap between adjacent chunks, for Merge SeedVR2 Latents.                                                          | INT       |

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/SeedVR2TemporalChunk/en.md)

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