Files
ComfyUI/comfy_api_nodes/nodes_runway.py
Alexander Piskun 22da0a83e9 [V3] convert Runway API nodes to the V3 schema (#9487)
* convert RunAway API nodes to the V3 schema

* fixed small typo

* fix: add tooltip for "seed" input
2025-09-03 16:18:27 -04:00

606 lines
21 KiB
Python

"""Runway API Nodes
API Docs:
- https://docs.dev.runwayml.com/api/#tag/Task-management/paths/~1v1~1tasks~1%7Bid%7D/delete
User Guides:
- https://help.runwayml.com/hc/en-us/sections/30265301423635-Gen-3-Alpha
- https://help.runwayml.com/hc/en-us/articles/37327109429011-Creating-with-Gen-4-Video
- https://help.runwayml.com/hc/en-us/articles/33927968552339-Creating-with-Act-One-on-Gen-3-Alpha-and-Turbo
- https://help.runwayml.com/hc/en-us/articles/34170748696595-Creating-with-Keyframes-on-Gen-3
"""
from typing import Union, Optional, Any
from typing_extensions import override
from enum import Enum
import torch
from comfy_api_nodes.apis import (
RunwayImageToVideoRequest,
RunwayImageToVideoResponse,
RunwayTaskStatusResponse as TaskStatusResponse,
RunwayTaskStatusEnum as TaskStatus,
RunwayModelEnum as Model,
RunwayDurationEnum as Duration,
RunwayAspectRatioEnum as AspectRatio,
RunwayPromptImageObject,
RunwayPromptImageDetailedObject,
RunwayTextToImageRequest,
RunwayTextToImageResponse,
Model4,
ReferenceImage,
RunwayTextToImageAspectRatioEnum,
)
from comfy_api_nodes.apis.client import (
ApiEndpoint,
HttpMethod,
SynchronousOperation,
PollingOperation,
EmptyRequest,
)
from comfy_api_nodes.apinode_utils import (
upload_images_to_comfyapi,
download_url_to_video_output,
image_tensor_pair_to_batch,
validate_string,
download_url_to_image_tensor,
)
from comfy_api.input_impl import VideoFromFile
from comfy_api.latest import ComfyExtension, io as comfy_io
from comfy_api_nodes.util.validation_utils import validate_image_dimensions, validate_image_aspect_ratio
PATH_IMAGE_TO_VIDEO = "/proxy/runway/image_to_video"
PATH_TEXT_TO_IMAGE = "/proxy/runway/text_to_image"
PATH_GET_TASK_STATUS = "/proxy/runway/tasks"
AVERAGE_DURATION_I2V_SECONDS = 64
AVERAGE_DURATION_FLF_SECONDS = 256
AVERAGE_DURATION_T2I_SECONDS = 41
class RunwayApiError(Exception):
"""Base exception for Runway API errors."""
pass
class RunwayGen4TurboAspectRatio(str, Enum):
"""Aspect ratios supported for Image to Video API when using gen4_turbo model."""
field_1280_720 = "1280:720"
field_720_1280 = "720:1280"
field_1104_832 = "1104:832"
field_832_1104 = "832:1104"
field_960_960 = "960:960"
field_1584_672 = "1584:672"
class RunwayGen3aAspectRatio(str, Enum):
"""Aspect ratios supported for Image to Video API when using gen3a_turbo model."""
field_768_1280 = "768:1280"
field_1280_768 = "1280:768"
def get_video_url_from_task_status(response: TaskStatusResponse) -> Union[str, None]:
"""Returns the video URL from the task status response if it exists."""
if hasattr(response, "output") and len(response.output) > 0:
return response.output[0]
return None
async def poll_until_finished(
auth_kwargs: dict[str, str],
api_endpoint: ApiEndpoint[Any, TaskStatusResponse],
estimated_duration: Optional[int] = None,
node_id: Optional[str] = None,
) -> TaskStatusResponse:
"""Polls the Runway API endpoint until the task reaches a terminal state, then returns the response."""
return await PollingOperation(
poll_endpoint=api_endpoint,
completed_statuses=[
TaskStatus.SUCCEEDED.value,
],
failed_statuses=[
TaskStatus.FAILED.value,
TaskStatus.CANCELLED.value,
],
status_extractor=lambda response: response.status.value,
auth_kwargs=auth_kwargs,
result_url_extractor=get_video_url_from_task_status,
estimated_duration=estimated_duration,
node_id=node_id,
progress_extractor=extract_progress_from_task_status,
).execute()
def extract_progress_from_task_status(
response: TaskStatusResponse,
) -> Union[float, None]:
if hasattr(response, "progress") and response.progress is not None:
return response.progress * 100
return None
def get_image_url_from_task_status(response: TaskStatusResponse) -> Union[str, None]:
"""Returns the image URL from the task status response if it exists."""
if hasattr(response, "output") and len(response.output) > 0:
return response.output[0]
return None
async def get_response(
task_id: str, auth_kwargs: dict[str, str], node_id: Optional[str] = None, estimated_duration: Optional[int] = None
) -> TaskStatusResponse:
"""Poll the task status until it is finished then get the response."""
return await poll_until_finished(
auth_kwargs,
ApiEndpoint(
path=f"{PATH_GET_TASK_STATUS}/{task_id}",
method=HttpMethod.GET,
request_model=EmptyRequest,
response_model=TaskStatusResponse,
),
estimated_duration=estimated_duration,
node_id=node_id,
)
async def generate_video(
request: RunwayImageToVideoRequest,
auth_kwargs: dict[str, str],
node_id: Optional[str] = None,
estimated_duration: Optional[int] = None,
) -> VideoFromFile:
initial_operation = SynchronousOperation(
endpoint=ApiEndpoint(
path=PATH_IMAGE_TO_VIDEO,
method=HttpMethod.POST,
request_model=RunwayImageToVideoRequest,
response_model=RunwayImageToVideoResponse,
),
request=request,
auth_kwargs=auth_kwargs,
)
initial_response = await initial_operation.execute()
final_response = await get_response(initial_response.id, auth_kwargs, node_id, estimated_duration)
if not final_response.output:
raise RunwayApiError("Runway task succeeded but no video data found in response.")
video_url = get_video_url_from_task_status(final_response)
return await download_url_to_video_output(video_url)
class RunwayImageToVideoNodeGen3a(comfy_io.ComfyNode):
@classmethod
def define_schema(cls):
return comfy_io.Schema(
node_id="RunwayImageToVideoNodeGen3a",
display_name="Runway Image to Video (Gen3a Turbo)",
category="api node/video/Runway",
description="Generate a video from a single starting frame using Gen3a Turbo model. "
"Before diving in, review these best practices to ensure that "
"your input selections will set your generation up for success: "
"https://help.runwayml.com/hc/en-us/articles/33927968552339-Creating-with-Act-One-on-Gen-3-Alpha-and-Turbo.",
inputs=[
comfy_io.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Text prompt for the generation",
),
comfy_io.Image.Input(
"start_frame",
tooltip="Start frame to be used for the video",
),
comfy_io.Combo.Input(
"duration",
options=[model.value for model in Duration],
),
comfy_io.Combo.Input(
"ratio",
options=[model.value for model in RunwayGen3aAspectRatio],
),
comfy_io.Int.Input(
"seed",
default=0,
min=0,
max=4294967295,
step=1,
control_after_generate=True,
display_mode=comfy_io.NumberDisplay.number,
tooltip="Random seed for generation",
),
],
outputs=[
comfy_io.Video.Output(),
],
hidden=[
comfy_io.Hidden.auth_token_comfy_org,
comfy_io.Hidden.api_key_comfy_org,
comfy_io.Hidden.unique_id,
],
is_api_node=True,
)
@classmethod
async def execute(
cls,
prompt: str,
start_frame: torch.Tensor,
duration: str,
ratio: str,
seed: int,
) -> comfy_io.NodeOutput:
validate_string(prompt, min_length=1)
validate_image_dimensions(start_frame, max_width=7999, max_height=7999)
validate_image_aspect_ratio(start_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
auth_kwargs = {
"auth_token": cls.hidden.auth_token_comfy_org,
"comfy_api_key": cls.hidden.api_key_comfy_org,
}
download_urls = await upload_images_to_comfyapi(
start_frame,
max_images=1,
mime_type="image/png",
auth_kwargs=auth_kwargs,
)
return comfy_io.NodeOutput(
await generate_video(
RunwayImageToVideoRequest(
promptText=prompt,
seed=seed,
model=Model("gen3a_turbo"),
duration=Duration(duration),
ratio=AspectRatio(ratio),
promptImage=RunwayPromptImageObject(
root=[
RunwayPromptImageDetailedObject(
uri=str(download_urls[0]), position="first"
)
]
),
),
auth_kwargs=auth_kwargs,
node_id=cls.hidden.unique_id,
)
)
class RunwayImageToVideoNodeGen4(comfy_io.ComfyNode):
@classmethod
def define_schema(cls):
return comfy_io.Schema(
node_id="RunwayImageToVideoNodeGen4",
display_name="Runway Image to Video (Gen4 Turbo)",
category="api node/video/Runway",
description="Generate a video from a single starting frame using Gen4 Turbo model. "
"Before diving in, review these best practices to ensure that "
"your input selections will set your generation up for success: "
"https://help.runwayml.com/hc/en-us/articles/37327109429011-Creating-with-Gen-4-Video.",
inputs=[
comfy_io.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Text prompt for the generation",
),
comfy_io.Image.Input(
"start_frame",
tooltip="Start frame to be used for the video",
),
comfy_io.Combo.Input(
"duration",
options=[model.value for model in Duration],
),
comfy_io.Combo.Input(
"ratio",
options=[model.value for model in RunwayGen4TurboAspectRatio],
),
comfy_io.Int.Input(
"seed",
default=0,
min=0,
max=4294967295,
step=1,
control_after_generate=True,
display_mode=comfy_io.NumberDisplay.number,
tooltip="Random seed for generation",
),
],
outputs=[
comfy_io.Video.Output(),
],
hidden=[
comfy_io.Hidden.auth_token_comfy_org,
comfy_io.Hidden.api_key_comfy_org,
comfy_io.Hidden.unique_id,
],
is_api_node=True,
)
@classmethod
async def execute(
cls,
prompt: str,
start_frame: torch.Tensor,
duration: str,
ratio: str,
seed: int,
) -> comfy_io.NodeOutput:
validate_string(prompt, min_length=1)
validate_image_dimensions(start_frame, max_width=7999, max_height=7999)
validate_image_aspect_ratio(start_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
auth_kwargs = {
"auth_token": cls.hidden.auth_token_comfy_org,
"comfy_api_key": cls.hidden.api_key_comfy_org,
}
download_urls = await upload_images_to_comfyapi(
start_frame,
max_images=1,
mime_type="image/png",
auth_kwargs=auth_kwargs,
)
return comfy_io.NodeOutput(
await generate_video(
RunwayImageToVideoRequest(
promptText=prompt,
seed=seed,
model=Model("gen4_turbo"),
duration=Duration(duration),
ratio=AspectRatio(ratio),
promptImage=RunwayPromptImageObject(
root=[
RunwayPromptImageDetailedObject(
uri=str(download_urls[0]), position="first"
)
]
),
),
auth_kwargs=auth_kwargs,
node_id=cls.hidden.unique_id,
estimated_duration=AVERAGE_DURATION_FLF_SECONDS,
)
)
class RunwayFirstLastFrameNode(comfy_io.ComfyNode):
@classmethod
def define_schema(cls):
return comfy_io.Schema(
node_id="RunwayFirstLastFrameNode",
display_name="Runway First-Last-Frame to Video",
category="api node/video/Runway",
description="Upload first and last keyframes, draft a prompt, and generate a video. "
"More complex transitions, such as cases where the Last frame is completely different "
"from the First frame, may benefit from the longer 10s duration. "
"This would give the generation more time to smoothly transition between the two inputs. "
"Before diving in, review these best practices to ensure that your input selections "
"will set your generation up for success: "
"https://help.runwayml.com/hc/en-us/articles/34170748696595-Creating-with-Keyframes-on-Gen-3.",
inputs=[
comfy_io.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Text prompt for the generation",
),
comfy_io.Image.Input(
"start_frame",
tooltip="Start frame to be used for the video",
),
comfy_io.Image.Input(
"end_frame",
tooltip="End frame to be used for the video. Supported for gen3a_turbo only.",
),
comfy_io.Combo.Input(
"duration",
options=[model.value for model in Duration],
),
comfy_io.Combo.Input(
"ratio",
options=[model.value for model in RunwayGen3aAspectRatio],
),
comfy_io.Int.Input(
"seed",
default=0,
min=0,
max=4294967295,
step=1,
control_after_generate=True,
display_mode=comfy_io.NumberDisplay.number,
tooltip="Random seed for generation",
),
],
outputs=[
comfy_io.Video.Output(),
],
hidden=[
comfy_io.Hidden.auth_token_comfy_org,
comfy_io.Hidden.api_key_comfy_org,
comfy_io.Hidden.unique_id,
],
is_api_node=True,
)
@classmethod
async def execute(
cls,
prompt: str,
start_frame: torch.Tensor,
end_frame: torch.Tensor,
duration: str,
ratio: str,
seed: int,
) -> comfy_io.NodeOutput:
validate_string(prompt, min_length=1)
validate_image_dimensions(start_frame, max_width=7999, max_height=7999)
validate_image_dimensions(end_frame, max_width=7999, max_height=7999)
validate_image_aspect_ratio(start_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
validate_image_aspect_ratio(end_frame, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
auth_kwargs = {
"auth_token": cls.hidden.auth_token_comfy_org,
"comfy_api_key": cls.hidden.api_key_comfy_org,
}
stacked_input_images = image_tensor_pair_to_batch(start_frame, end_frame)
download_urls = await upload_images_to_comfyapi(
stacked_input_images,
max_images=2,
mime_type="image/png",
auth_kwargs=auth_kwargs,
)
if len(download_urls) != 2:
raise RunwayApiError("Failed to upload one or more images to comfy api.")
return comfy_io.NodeOutput(
await generate_video(
RunwayImageToVideoRequest(
promptText=prompt,
seed=seed,
model=Model("gen3a_turbo"),
duration=Duration(duration),
ratio=AspectRatio(ratio),
promptImage=RunwayPromptImageObject(
root=[
RunwayPromptImageDetailedObject(
uri=str(download_urls[0]), position="first"
),
RunwayPromptImageDetailedObject(
uri=str(download_urls[1]), position="last"
),
]
),
),
auth_kwargs=auth_kwargs,
node_id=cls.hidden.unique_id,
estimated_duration=AVERAGE_DURATION_FLF_SECONDS,
)
)
class RunwayTextToImageNode(comfy_io.ComfyNode):
@classmethod
def define_schema(cls):
return comfy_io.Schema(
node_id="RunwayTextToImageNode",
display_name="Runway Text to Image",
category="api node/image/Runway",
description="Generate an image from a text prompt using Runway's Gen 4 model. "
"You can also include reference image to guide the generation.",
inputs=[
comfy_io.String.Input(
"prompt",
multiline=True,
default="",
tooltip="Text prompt for the generation",
),
comfy_io.Combo.Input(
"ratio",
options=[model.value for model in RunwayTextToImageAspectRatioEnum],
),
comfy_io.Image.Input(
"reference_image",
tooltip="Optional reference image to guide the generation",
optional=True,
),
],
outputs=[
comfy_io.Image.Output(),
],
hidden=[
comfy_io.Hidden.auth_token_comfy_org,
comfy_io.Hidden.api_key_comfy_org,
comfy_io.Hidden.unique_id,
],
is_api_node=True,
)
@classmethod
async def execute(
cls,
prompt: str,
ratio: str,
reference_image: Optional[torch.Tensor] = None,
) -> comfy_io.NodeOutput:
validate_string(prompt, min_length=1)
auth_kwargs = {
"auth_token": cls.hidden.auth_token_comfy_org,
"comfy_api_key": cls.hidden.api_key_comfy_org,
}
# Prepare reference images if provided
reference_images = None
if reference_image is not None:
validate_image_dimensions(reference_image, max_width=7999, max_height=7999)
validate_image_aspect_ratio(reference_image, min_aspect_ratio=0.5, max_aspect_ratio=2.0)
download_urls = await upload_images_to_comfyapi(
reference_image,
max_images=1,
mime_type="image/png",
auth_kwargs=auth_kwargs,
)
reference_images = [ReferenceImage(uri=str(download_urls[0]))]
request = RunwayTextToImageRequest(
promptText=prompt,
model=Model4.gen4_image,
ratio=ratio,
referenceImages=reference_images,
)
initial_operation = SynchronousOperation(
endpoint=ApiEndpoint(
path=PATH_TEXT_TO_IMAGE,
method=HttpMethod.POST,
request_model=RunwayTextToImageRequest,
response_model=RunwayTextToImageResponse,
),
request=request,
auth_kwargs=auth_kwargs,
)
initial_response = await initial_operation.execute()
# Poll for completion
final_response = await get_response(
initial_response.id,
auth_kwargs=auth_kwargs,
node_id=cls.hidden.unique_id,
estimated_duration=AVERAGE_DURATION_T2I_SECONDS,
)
if not final_response.output:
raise RunwayApiError("Runway task succeeded but no image data found in response.")
return comfy_io.NodeOutput(await download_url_to_image_tensor(get_image_url_from_task_status(final_response)))
class RunwayExtension(ComfyExtension):
@override
async def get_node_list(self) -> list[type[comfy_io.ComfyNode]]:
return [
RunwayFirstLastFrameNode,
RunwayImageToVideoNodeGen3a,
RunwayImageToVideoNodeGen4,
RunwayTextToImageNode,
]
async def comfy_entrypoint() -> RunwayExtension:
return RunwayExtension()