ComfyUI/comfy/comfy_types
Jacob Segal 46fb2153e1 Add basic support for videos as types
This PR adds support for VIDEO as first-class types. In order to avoid
unnecessary costs, VIDEO outputs must implement the `VideoInput` ABC,
but their implementation details can vary. Included are two
implementations of this type which can be returned by other nodes:

* `VideoFromFile` - Created with either a path on disk (as a string) or
  a `io.BytesIO` containing the contents of a file in a supported format
  (like .mp4). This implementation won't actually load the video unless
  necessary. It will also avoid re-encoding when saving if possible.
* `VideoFromComponents` - Created from an image tensor and an optional
  audio tensor.

Currently, only h264 encoded videos in .mp4 containers are supported for
saving, but the plan is to add additional encodings/containers in the
near future (particularly .webm).
2025-04-27 20:56:55 -07:00
..

Comfy Typing

Type hinting for ComfyUI Node development

This module provides type hinting and concrete convenience types for node developers. If cloned to the custom_nodes directory of ComfyUI, types can be imported using:

from comfy.comfy_types import IO, ComfyNodeABC, CheckLazyMixin

class ExampleNode(ComfyNodeABC):
    @classmethod
    def INPUT_TYPES(s) -> InputTypeDict:
        return {"required": {}}

Full example is in examples/example_nodes.py.

Types

A few primary types are documented below. More complete information is available via the docstrings on each type.

IO

A string enum of built-in and a few custom data types. Includes the following special types and their requisite plumbing:

  • ANY: "*"
  • NUMBER: "FLOAT,INT"
  • PRIMITIVE: "STRING,FLOAT,INT,BOOLEAN"

ComfyNodeABC

An abstract base class for nodes, offering type-hinting / autocomplete, and somewhat-alright docstrings.

Type hinting for INPUT_TYPES

INPUT_TYPES auto-completion in Visual Studio Code

INPUT_TYPES return dict

INPUT_TYPES return value type hinting in Visual Studio Code

Options for individual inputs

INPUT_TYPES return value option auto-completion in Visual Studio Code