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08cd413f0bbbc4f701389ec35e7eff7e3fadf5b1
banodoco-steerable-motion/SteerableMotion.py
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POM 08cd413f0b Refactor VideoContinuationGenerator for clarity 
- Replaces confusing 'when_to_start' parameters with a single 'continuation_mode' dropdown.
- New modes ('Generate new content', 'Stitch to existing sequence') are goal-oriented for better UX.
- 'Generate new content' (default) uses control frames from C0 and masks the middle for inpainting.
- 'Stitch to existing sequence' skips overlapping control frames and treats them as known areas.
- This change makes the node's behavior more intuitive and easier to understand.
2025-06-23 11:27:08 +02:00

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# Standard library imports
from ast import literal_eval
from io import BytesIO
import logging
import math
import gc
# Third-party library imports
import numpy as np
import torch
import torchvision.transforms as transforms
from PIL import Image
import matplotlib
import matplotlib.pyplot as plt
# Local application/library specific imports
from .imports.ComfyUI_IPAdapter_plus.IPAdapterPlus import IPAdapterBatchImport, IPAdapterTiledBatchImport, IPAdapterTiledImport, PrepImageForClipVisionImport, IPAdapterAdvancedImport, IPAdapterNoiseImport
from .imports.ComfyUI_Frame_Interpolation.vfi_models.film import FILM_VFIImport
from comfy.utils import common_upscale
try:
from .utils import log # If your .utils has a log object
except ImportError:
log = logging.getLogger(__name__) # Fallback to standard logging
class BatchCreativeInterpolationNode:
@classmethod
def IS_CHANGED(cls, **kwargs):
return float("NaN")
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"positive": ("CONDITIONING", ),
"negative": ("CONDITIONING", ),
"images": ("IMAGE", ),
"model": ("MODEL", ),
"ipadapter": ("IPADAPTER", ),
"clip_vision": ("CLIP_VISION",),
"type_of_frame_distribution": (["linear", "dynamic"],),
"linear_frame_distribution_value": ("INT", {"default": 16, "min": 4, "max": 64, "step": 1}),
"dynamic_frame_distribution_values": ("STRING", {"multiline": True, "default": "0,10,26,40"}),
"type_of_key_frame_influence": (["linear", "dynamic"],),
"linear_key_frame_influence_value": ("STRING", {"multiline": False, "default": "(1.0,1.0)"}),
"dynamic_key_frame_influence_values": ("STRING", {"multiline": True, "default": "(1.0,1.0),(1.0,1.5)(1.0,0.5)"}),
"type_of_strength_distribution": (["linear", "dynamic"],),
"linear_strength_value": ("STRING", {"multiline": False, "default": "(0.3,0.4)"}),
"dynamic_strength_values": ("STRING", {"multiline": True, "default": "(0.0,1.0),(0.0,1.0),(0.0,1.0),(0.0,1.0)"}),
"buffer": ("INT", {"default": 4, "min": 1, "max": 16, "step": 1}),
"high_detail_mode": ("BOOLEAN", {"default": True}),
},
"optional": {
"base_ipa_advanced_settings": ("ADVANCED_IPA_SETTINGS",),
"detail_ipa_advanced_settings": ("ADVANCED_IPA_SETTINGS",),
}
}
RETURN_TYPES = ("IMAGE","CONDITIONING","CONDITIONING","MODEL","STRING","INT", "INT", "STRING")
RETURN_NAMES = ("GRAPH","POSITIVE","NEGATIVE","MODEL","KEYFRAME_POSITIONS","BATCH_SIZE", "BUFFER","FRAMES_TO_DROP")
FUNCTION = "combined_function"
CATEGORY = "Steerable-Motion"
def combined_function(self,positive,negative,images,model,ipadapter,clip_vision,
type_of_frame_distribution,linear_frame_distribution_value,
dynamic_frame_distribution_values, type_of_key_frame_influence,linear_key_frame_influence_value,
dynamic_key_frame_influence_values,type_of_strength_distribution,
linear_strength_value,dynamic_strength_values,
buffer, high_detail_mode,base_ipa_advanced_settings=None,
detail_ipa_advanced_settings=None):
# set the matplotlib backend to 'Agg' to prevent crash on macOS
# 'Agg' is a non-interactive backend that can be used in a non-main thread
matplotlib.use('Agg')
def get_keyframe_positions(type_of_frame_distribution, dynamic_frame_distribution_values, images, linear_frame_distribution_value):
if type_of_frame_distribution == "dynamic":
# Check if the input is a string or a list
if isinstance(dynamic_frame_distribution_values, str):
# Parse the keyframe positions, sort them, and then increase each by 1 except the first
keyframes = sorted([int(kf.strip()) for kf in dynamic_frame_distribution_values.split(',')])
elif isinstance(dynamic_frame_distribution_values, list):
# Sort the list and then increase each by 1 except the first
keyframes = sorted(dynamic_frame_distribution_values)
else:
# Calculate the number of keyframes based on the total duration and linear_frames_per_keyframe
# Increase each by 1 except the first
keyframes = [(i * linear_frame_distribution_value) for i in range(len(images))]
# Increase all values by 1 except the first
if len(keyframes) > 1:
return [keyframes[0]] + [kf + 1 for kf in keyframes[1:]]
else:
return keyframes
def create_mask_batch(last_key_frame_position, weights, frames):
# Hardcoded dimensions
width, height = 512, 512
# Map frames to their corresponding reversed weights for easy lookup
frame_to_weight = {frame: weights[i] for i, frame in enumerate(frames)}
# Create masks for each frame up to last_key_frame_position
masks = []
for frame_number in range(last_key_frame_position):
# Determine the strength of the mask
strength = frame_to_weight.get(frame_number, 0.0)
# Create the mask with the determined strength
mask = torch.full((height, width), strength)
masks.append(mask)
# Convert list of masks to a single tensor
masks_tensor = torch.stack(masks, dim=0)
return masks_tensor
def create_weight_batch(last_key_frame_position, weights, frames):
# Map frames to their corresponding reversed weights for easy lookup
frame_to_weight = {frame: weights[i] for i, frame in enumerate(frames)}
# Create weights for each frame up to last_key_frame_position
weights = []
for frame_number in range(last_key_frame_position):
# Determine the strength of the weight
strength = frame_to_weight.get(frame_number, 0.0)
weights.append(strength)
return weights
def plot_weight_comparison(cn_frame_numbers, cn_weights, ipadapter_frame_numbers, ipadapter_weights, buffer):
plt.figure(figsize=(12, 8))
colors = ['b', 'g', 'r', 'c', 'm', 'y', 'k']
# Handle None values for frame numbers and weights
cn_frame_numbers = cn_frame_numbers if cn_frame_numbers is not None else []
cn_weights = cn_weights if cn_weights is not None else []
ipadapter_frame_numbers = ipadapter_frame_numbers if ipadapter_frame_numbers is not None else []
ipadapter_weights = ipadapter_weights if ipadapter_weights is not None else []
max_length = max(len(cn_frame_numbers), len(ipadapter_frame_numbers))
label_counter = 1 if buffer < 0 else 0
for i in range(max_length):
if i < len(cn_frame_numbers):
label = 'cn_strength_buffer' if (i == 0 and buffer > 0) else f'cn_strength_{label_counter}'
plt.plot(cn_frame_numbers[i], cn_weights[i], marker='o', color=colors[i % len(colors)], label=label)
if i < len(ipadapter_frame_numbers):
label = 'ipa_strength_buffer' if (i == 0 and buffer > 0) else f'ipa_strength_{label_counter}'
plt.plot(ipadapter_frame_numbers[i], ipadapter_weights[i], marker='x', linestyle='--', color=colors[i % len(colors)], label=label)
if label_counter == 0 or buffer < 0 or i > 0:
label_counter += 1
plt.legend()
# Adjusted generator expression for max_weight
all_weights = cn_weights + ipadapter_weights
max_weight = max(max(sublist) for sublist in all_weights if sublist) * 1.5
plt.ylim(0, max_weight)
buffer_io = BytesIO()
plt.savefig(buffer_io, format='png', bbox_inches='tight')
plt.close()
buffer_io.seek(0)
img = Image.open(buffer_io)
img_tensor = transforms.ToTensor()(img)
img_tensor = img_tensor.unsqueeze(0)
img_tensor = img_tensor.permute([0, 2, 3, 1])
return img_tensor,
def extract_strength_values(type_of_key_frame_influence, dynamic_key_frame_influence_values, keyframe_positions, linear_key_frame_influence_value):
if type_of_key_frame_influence == "dynamic":
# Process the dynamic_key_frame_influence_values depending on its format
if isinstance(dynamic_key_frame_influence_values, str):
dynamic_values = eval(dynamic_key_frame_influence_values)
else:
dynamic_values = dynamic_key_frame_influence_values
# Iterate through the dynamic values and convert tuples with two values to three values
dynamic_values_corrected = []
for value in dynamic_values:
if len(value) == 2:
value = (value[0], value[1], value[0])
dynamic_values_corrected.append(value)
return dynamic_values_corrected
else:
# Process for linear or other types
if len(linear_key_frame_influence_value) == 2:
linear_key_frame_influence_value = (linear_key_frame_influence_value[0], linear_key_frame_influence_value[1], linear_key_frame_influence_value[0])
return [linear_key_frame_influence_value for _ in range(len(keyframe_positions) - 1)]
def extract_influence_values(type_of_key_frame_influence, dynamic_key_frame_influence_values, keyframe_positions, linear_key_frame_influence_value):
# Check and convert linear_key_frame_influence_value if it's a float or string float
# if it's a string that starts with a parenthesis, convert it to a tuple
if isinstance(linear_key_frame_influence_value, str) and linear_key_frame_influence_value[0] == "(":
linear_key_frame_influence_value = eval(linear_key_frame_influence_value)
if not isinstance(linear_key_frame_influence_value, tuple):
if isinstance(linear_key_frame_influence_value, (float, str)):
try:
value = float(linear_key_frame_influence_value)
linear_key_frame_influence_value = (value, value)
except ValueError:
raise ValueError("linear_key_frame_influence_value must be a float or a string representing a float")
number_of_outputs = len(keyframe_positions) - 1
if type_of_key_frame_influence == "dynamic":
# Convert list of individual float values into tuples
if all(isinstance(x, float) for x in dynamic_key_frame_influence_values):
dynamic_values = [(value, value) for value in dynamic_key_frame_influence_values]
elif isinstance(dynamic_key_frame_influence_values[0], str) and dynamic_key_frame_influence_values[0] == "(":
string_representation = ''.join(dynamic_key_frame_influence_values)
dynamic_values = eval(f'[{string_representation}]')
else:
dynamic_values = dynamic_key_frame_influence_values if isinstance(dynamic_key_frame_influence_values, list) else [dynamic_key_frame_influence_values]
return dynamic_values[:number_of_outputs]
else:
return [linear_key_frame_influence_value for _ in range(number_of_outputs)]
def calculate_weights(batch_index_from, batch_index_to, strength_from, strength_to, interpolation,revert_direction_at_midpoint, last_key_frame_position,i, number_of_items,buffer):
# Initialize variables based on the position of the keyframe
range_start = batch_index_from
range_end = batch_index_to
# if it's the first value, set influence range from 1.0 to 0.0
if i == number_of_items - 1:
range_end = last_key_frame_position
steps = range_end - range_start
diff = strength_to - strength_from
# Calculate index for interpolation
index = np.linspace(0, 1, steps // 2 + 1) if revert_direction_at_midpoint else np.linspace(0, 1, steps)
# Calculate weights based on interpolation type
if interpolation == "linear":
weights = np.linspace(strength_from, strength_to, len(index))
elif interpolation == "ease-in":
weights = diff * np.power(index, 2) + strength_from
elif interpolation == "ease-out":
weights = diff * (1 - np.power(1 - index, 2)) + strength_from
elif interpolation == "ease-in-out":
weights = diff * ((1 - np.cos(index * np.pi)) / 2) + strength_from
if revert_direction_at_midpoint:
weights = np.concatenate([weights, weights[::-1]])
# Generate frame numbers
frame_numbers = np.arange(range_start, range_start + len(weights))
# "Dropper" component: For keyframes with negative start, drop the weights
if range_start < 0 and i > 0:
drop_count = abs(range_start)
weights = weights[drop_count:]
frame_numbers = frame_numbers[drop_count:]
# Dropper component: for keyframes a range_End is greater than last_key_frame_position, drop the weights
if range_end > last_key_frame_position and i < number_of_items - 1:
drop_count = range_end - last_key_frame_position
weights = weights[:-drop_count]
frame_numbers = frame_numbers[:-drop_count]
return weights, frame_numbers
def process_weights(frame_numbers, weights, multiplier):
# Multiply weights by the multiplier and apply the bounds of 0.0 and 1.0
adjusted_weights = [min(max(weight * multiplier, 0.0), 1.0) for weight in weights]
# Filter out frame numbers and weights where the weight is 0.0
filtered_frames_and_weights = [(frame, weight) for frame, weight in zip(frame_numbers, adjusted_weights) if weight > 0.0]
# Separate the filtered frame numbers and weights
filtered_frame_numbers, filtered_weights = zip(*filtered_frames_and_weights) if filtered_frames_and_weights else ([], [])
return list(filtered_frame_numbers), list(filtered_weights)
def calculate_influence_frame_number(key_frame_position, next_key_frame_position, distance):
# Calculate the absolute distance between key frames
key_frame_distance = abs(next_key_frame_position - key_frame_position)
# Apply the distance multiplier
extended_distance = key_frame_distance * distance
# Determine the direction of influence based on the positions of the key frames
if key_frame_position < next_key_frame_position:
# Normal case: influence extends forward
influence_frame_number = key_frame_position + extended_distance
else:
# Reverse case: influence extends backward
influence_frame_number = key_frame_position - extended_distance
# Return the result rounded to the nearest integer
return round(influence_frame_number)
# GET KEYFRAME POSITIONS
keyframe_positions = get_keyframe_positions(type_of_frame_distribution, dynamic_frame_distribution_values, images, linear_frame_distribution_value)
shifted_keyframes_position = [position + buffer - 2 for position in keyframe_positions]
shifted_keyframe_positions_string = ','.join(str(pos) for pos in shifted_keyframes_position)
if buffer > 0:
# add front buffer
keyframe_positions = [position + buffer - 1 for position in keyframe_positions]
keyframe_positions.insert(0, 0)
# add end buffer
last_position_with_buffer = keyframe_positions[-1] + buffer + 1
keyframe_positions.append(last_position_with_buffer)
# GET BASE ADVANCED SETTINGS OR SET DEFAULTS
if base_ipa_advanced_settings is None:
if high_detail_mode:
base_ipa_advanced_settings = {
"ipa_starts_at": 0.0,
"ipa_ends_at": 0.3,
"ipa_weight_type": "ease in-out",
"ipa_weight": 1.0,
"ipa_embeds_scaling": "V only",
"ipa_noise_strength": 0.0,
"use_image_for_noise": False,
"type_of_noise": "fade",
"noise_blur": 0,
}
else:
base_ipa_advanced_settings = {
"ipa_starts_at": 0.0,
"ipa_ends_at": 0.75,
"ipa_weight_type": "ease in-out",
"ipa_weight": 1.0,
"ipa_embeds_scaling": "V only",
"ipa_noise_strength": 0.0,
"use_image_for_noise": False,
"type_of_noise": "fade",
"noise_blur": 0,
}
# GET DETAILED ADVANCED SETTINGS OR SET DEFAULTS
if detail_ipa_advanced_settings is None:
if high_detail_mode:
detail_ipa_advanced_settings = {
"ipa_starts_at": 0.25,
"ipa_ends_at": 0.75,
"ipa_weight_type": "ease in-out",
"ipa_weight": 1.0,
"ipa_embeds_scaling": "V only",
"ipa_noise_strength": 0.0,
"use_image_for_noise": False,
"type_of_noise": "fade",
"noise_blur": 0,
}
strength_values = extract_strength_values(type_of_strength_distribution, dynamic_strength_values, keyframe_positions, linear_strength_value)
strength_values = [literal_eval(val) if isinstance(val, str) else val for val in strength_values]
corrected_strength_values = []
for val in strength_values:
if len(val) == 2:
val = (val[0], val[1], val[0])
corrected_strength_values.append(val)
strength_values = corrected_strength_values
# GET KEYFRAME INFLUENCE VALUES
key_frame_influence_values = extract_influence_values(type_of_key_frame_influence, dynamic_key_frame_influence_values, keyframe_positions, linear_key_frame_influence_value)
key_frame_influence_values = [literal_eval(val) if isinstance(val, str) else val for val in key_frame_influence_values]
# CALCULATE LAST KEYFRAME POSITION
if len(keyframe_positions) == 4:
last_key_frame_position = (keyframe_positions[-1]) - 1
else:
last_key_frame_position = (keyframe_positions[-1])
class IPBin:
def __init__(self):
self.indicies = []
self.image_schedule = []
self.weight_schedule = []
self.imageBatch = []
self.bigImageBatch = []
self.noiseBatch = []
self.bigNoiseBatch = []
def length(self):
return len(self.image_schedule)
def add(self, image, big_image, noise, big_noise, image_index, frame_numbers, weights):
# Map frames to their corresponding reversed weights for easy lookup
frame_to_weight = {frame: weights[i] for i, frame in enumerate(frame_numbers)}
# Search for image index, if it isn't there add the image
try:
index = self.indicies.index(image_index)
except ValueError:
self.imageBatch.append(image)
self.bigImageBatch.append(big_image)
if noise is not None: self.noiseBatch.append(noise)
if big_noise is not None: self.bigNoiseBatch.append(big_noise)
self.indicies.append(image_index)
index = self.indicies.index(image_index)
self.image_schedule.extend([index] * (frame_numbers[-1] + 1 - len(self.image_schedule)))
self.weight_schedule.extend([0] * (frame_numbers[0] - len(self.weight_schedule)))
self.weight_schedule.extend(frame_to_weight[frame] for frame in range(frame_numbers[0], frame_numbers[-1] + 1))
# CREATE LISTS FOR WEIGHTS AND FRAME NUMBERS
all_cn_frame_numbers = []
all_cn_weights = []
all_ipa_weights = []
all_ipa_frame_numbers = []
# Start with one bin
bins = [IPBin()]
for i in range(len(keyframe_positions)):
keyframe_position = keyframe_positions[i]
interpolation = "ease-in-out"
# strength_from = strength_to = 1.0
image_index = 0
if i == 0: # buffer
image = images[0]
image_index = 0
strength_from = strength_to = strength_values[0][1]
batch_index_from = 0
batch_index_to_excl = buffer
weights, frame_numbers = calculate_weights(batch_index_from, batch_index_to_excl, strength_from, strength_to, interpolation, False, last_key_frame_position, i, len(keyframe_positions), buffer)
elif i == 1: # first image
# GET IMAGE AND KEYFRAME INFLUENCE VALUES
image = images[i-1]
image_index = i-1
key_frame_influence_from, key_frame_influence_to = key_frame_influence_values[i-1]
start_strength, mid_strength, end_strength = strength_values[i-1]
keyframe_position = keyframe_positions[i] + 1
next_key_frame_position = keyframe_positions[i+1] + 1
batch_index_from = keyframe_position
batch_index_to_excl = calculate_influence_frame_number(keyframe_position, next_key_frame_position, key_frame_influence_to)
weights, frame_numbers = calculate_weights(batch_index_from, batch_index_to_excl, mid_strength, end_strength, interpolation, False, last_key_frame_position, i, len(keyframe_positions), buffer)
# interpolation = "ease-in"
elif i == len(keyframe_positions) - 2: # last image
# GET IMAGE AND KEYFRAME INFLUENCE VALUES
image = images[i-1]
image_index = i - 1
key_frame_influence_from,key_frame_influence_to = key_frame_influence_values[i-1]
start_strength, mid_strength, end_strength = strength_values[i-1]
if len(keyframe_positions) == 4:
keyframe_position = keyframe_positions[i] - 1
else:
keyframe_position = keyframe_positions[i]
previous_key_frame_position = keyframe_positions[i-1]
batch_index_from = calculate_influence_frame_number(keyframe_position, previous_key_frame_position, key_frame_influence_from)
batch_index_to_excl = keyframe_position + 1
weights, frame_numbers = calculate_weights(batch_index_from, batch_index_to_excl, start_strength, mid_strength, interpolation, False, last_key_frame_position, i, len(keyframe_positions), buffer)
# interpolation = "ease-out"
elif i == len(keyframe_positions) - 1: # buffer
image = images[i-2]
image_index = i - 2
strength_from = strength_to = strength_values[i-2][1]
if len(keyframe_positions) == 4:
batch_index_from = keyframe_positions[i-1]
batch_index_to_excl = last_key_frame_position - 1
else:
batch_index_from = keyframe_positions[i-1] + 1
batch_index_to_excl = last_key_frame_position
weights, frame_numbers = calculate_weights(batch_index_from, batch_index_to_excl, strength_from, strength_to, interpolation, False, last_key_frame_position, i, len(keyframe_positions), buffer)
else: # middle images
# GET IMAGE AND KEYFRAME INFLUENCE VALUES
image = images[i-1]
image_index = i - 1
key_frame_influence_from,key_frame_influence_to = key_frame_influence_values[i-1]
start_strength, mid_strength, end_strength = strength_values[i-1]
keyframe_position = keyframe_positions[i]
# CALCULATE WEIGHTS FOR FIRST HALF
previous_key_frame_position = keyframe_positions[i-1]
batch_index_from = calculate_influence_frame_number(keyframe_position, previous_key_frame_position, key_frame_influence_from)
batch_index_to_excl = keyframe_position + 1
first_half_weights, first_half_frame_numbers = calculate_weights(batch_index_from, batch_index_to_excl, start_strength, mid_strength, interpolation, False, last_key_frame_position, i, len(keyframe_positions), buffer)
# CALCULATE WEIGHTS FOR SECOND HALF
next_key_frame_position = keyframe_positions[i+1]
batch_index_from = keyframe_position
batch_index_to_excl = calculate_influence_frame_number(keyframe_position, next_key_frame_position, key_frame_influence_to) + 2
second_half_weights, second_half_frame_numbers = calculate_weights(batch_index_from, batch_index_to_excl, mid_strength, end_strength, interpolation, False, last_key_frame_position, i, len(keyframe_positions), buffer)
# COMBINE FIRST AND SECOND HALF
weights = np.concatenate([first_half_weights, second_half_weights])
frame_numbers = np.concatenate([first_half_frame_numbers, second_half_frame_numbers])
# PROCESS WEIGHTS
ipa_frame_numbers, ipa_weights = process_weights(frame_numbers, weights, 1.0)
prepare_for_clip_vision = PrepImageForClipVisionImport()
prepped_image, = prepare_for_clip_vision.prep_image(image=image.unsqueeze(0), interpolation="LANCZOS", crop_position="pad", sharpening=0.1)
if base_ipa_advanced_settings["ipa_noise_strength"] > 0:
if base_ipa_advanced_settings["use_image_for_noise"]:
noise_image = prepped_image
else:
noise_image = None
ipa_noise = IPAdapterNoiseImport()
negative_noise, = ipa_noise.make_noise(type=base_ipa_advanced_settings["type_of_noise"], strength=base_ipa_advanced_settings["ipa_noise_strength"], blur=base_ipa_advanced_settings["noise_blur"], image_optional=noise_image)
else:
negative_noise = None
if high_detail_mode and detail_ipa_advanced_settings["ipa_noise_strength"] > 0:
if detail_ipa_advanced_settings["use_image_for_noise"]:
noise_image = image.unsqueeze(0)
else:
noise_image = None
ipa_noise = IPAdapterNoiseImport()
big_negative_noise, = ipa_noise.make_noise(type=detail_ipa_advanced_settings["type_of_noise"], strength=detail_ipa_advanced_settings["ipa_noise_strength"], blur=detail_ipa_advanced_settings["noise_blur"], image_optional=noise_image)
else:
big_negative_noise = None
if len(ipa_frame_numbers) > 0:
# Fill up bins with image frames. Bins will automatically be created when needed but all the frames should be able to be packed into two bins
active_index = -1
# Find a bin that we can fit the next image into
for i, bin in enumerate(bins):
if bin.length() <= ipa_frame_numbers[0]:
active_index = i
break
# If we didn't find a suitable bin, add a new one
if active_index == -1:
bins.append(IPBin())
active_index = len(bins) - 1
# Add the image to the bin
bins[active_index].add(prepped_image, image.unsqueeze(0), negative_noise, big_negative_noise, image_index, ipa_frame_numbers, ipa_weights)
all_ipa_frame_numbers.append(ipa_frame_numbers)
all_ipa_weights.append(ipa_weights)
# Go through the bins and create IPAdapters for them
for i, bin in enumerate(bins):
ipadapter_application = IPAdapterBatchImport()
negative_noise = torch.cat(bin.noiseBatch, dim=0) if len(bin.noiseBatch) > 0 else None
model, *_ = ipadapter_application.apply_ipadapter(model=model, ipadapter=ipadapter, image=torch.cat(bin.imageBatch, dim=0), weight=[x * base_ipa_advanced_settings["ipa_weight"] for x in bin.weight_schedule], weight_type=base_ipa_advanced_settings["ipa_weight_type"], start_at=base_ipa_advanced_settings["ipa_starts_at"], end_at=base_ipa_advanced_settings["ipa_ends_at"], clip_vision=clip_vision,image_negative=negative_noise,embeds_scaling=base_ipa_advanced_settings["ipa_embeds_scaling"], encode_batch_size=1, image_schedule=bin.image_schedule)
if high_detail_mode:
tiled_ipa_application = IPAdapterTiledBatchImport()
negative_noise = torch.cat(bin.bigNoiseBatch, dim=0) if len(bin.bigNoiseBatch) > 0 else None
model, *_ = tiled_ipa_application.apply_tiled(model=model, ipadapter=ipadapter, image=torch.cat(bin.bigImageBatch, dim=0), weight=[x * detail_ipa_advanced_settings["ipa_weight"] for x in bin.weight_schedule], weight_type=detail_ipa_advanced_settings["ipa_weight_type"], start_at=detail_ipa_advanced_settings["ipa_starts_at"], end_at=detail_ipa_advanced_settings["ipa_ends_at"], clip_vision=clip_vision,sharpening=0.1,image_negative=negative_noise,embeds_scaling=detail_ipa_advanced_settings["ipa_embeds_scaling"], encode_batch_size=1, image_schedule=bin.image_schedule)
comparison_diagram, = plot_weight_comparison(all_cn_frame_numbers, all_cn_weights, all_ipa_frame_numbers, all_ipa_weights, buffer)
return comparison_diagram, positive, negative, model, shifted_keyframe_positions_string, last_key_frame_position, buffer, shifted_keyframes_position
class RemoveAndInterpolateFramesNode:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"images": ("IMAGE", ),
"frames_to_drop": ("STRING", {"multiline": True, "default": "[8, 16, 24]"}),
},
"optional": {}
}
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("image",)
FUNCTION = "replace_and_interpolate_frames"
CATEGORY = "Steerable-Motion"
def replace_and_interpolate_frames(self, images: torch.Tensor, frames_to_drop: str):
if isinstance(frames_to_drop, str):
frames_to_drop = eval(frames_to_drop)
frames_to_drop = sorted(frames_to_drop, reverse=True)
# Create instance of FILM_VFI within the function
film_vfi = FILM_VFIImport() # Assuming FILM_VFI does not require any special setup
for index in frames_to_drop:
if 0 < index < images.shape[0] - 1:
# Extract the two surrounding frames
batch = images[index-1:index+2:2]
# Process through FILM_VFI
interpolated_frames = film_vfi.vfi(
ckpt_name='film_net_fp32.pt',
frames=batch,
clear_cache_after_n_frames=10,
multiplier=2
)[0] # Assuming vfi returns a tuple and the first element is the interpolated frames
# Replace the original frames at the location
images = torch.cat((images[:index-1], interpolated_frames, images[index+2:]))
return (images,)
class IpaConfigurationNode:
WEIGHT_TYPES = ["linear", "ease in", "ease out", 'ease in-out', 'reverse in-out', 'weak input', 'weak output', 'weak middle', 'strong middle']
IPA_EMBEDS_SCALING_OPTIONS = ["V only", "K+V", "K+V w/ C penalty", "K+mean(V) w/ C penalty"]
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"ipa_starts_at": ("FLOAT", {"default": 0.0, "min": 0.0, "max": 1.0, "step": 0.01}),
"ipa_ends_at": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 1.0, "step": 0.01}),
"ipa_weight_type": (cls.WEIGHT_TYPES,),
"ipa_weight": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 2.0, "step": 0.01}),
"ipa_embeds_scaling": (cls.IPA_EMBEDS_SCALING_OPTIONS,),
"ipa_noise_strength": ("FLOAT", {"default": 0.3, "min": 0.0, "max": 1.0, "step": 0.01}),
"use_image_for_noise": ("BOOLEAN", {"default": False}),
"type_of_noise": (["fade", "dissolve", "gaussian", "shuffle"], ),
"noise_blur": ("INT", { "default": 0, "min": 0, "max": 32, "step": 1 }),
},
"optional": {}
}
FUNCTION = "process_inputs"
RETURN_TYPES = ("ADVANCED_IPA_SETTINGS",)
RETURN_NAMES = ("configuration",)
CATEGORY = "Steerable-Motion"
@classmethod
def process_inputs(cls, ipa_starts_at, ipa_ends_at, ipa_weight_type, ipa_weight, ipa_embeds_scaling, ipa_noise_strength, use_image_for_noise, type_of_noise, noise_blur):
return {
"ipa_starts_at": ipa_starts_at,
"ipa_ends_at": ipa_ends_at,
"ipa_weight_type": ipa_weight_type,
"ipa_weight": ipa_weight,
"ipa_embeds_scaling": ipa_embeds_scaling,
"ipa_noise_strength": ipa_noise_strength,
"use_image_for_noise": use_image_for_noise,
"type_of_noise": type_of_noise,
"noise_blur": noise_blur,
},
class VideoFrameExtractorAndMaskGenerator:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"input_video_frames": ("IMAGE", {"tooltip": "Input video frames (IMAGE batch) to extract from."}),
"total_output_frames": ("INT", {"default": 81, "min": 1, "max": 10000, "step": 4, "tooltip": "Total number of frames for the output guidance video and masks. Must satisfy: (frames - 1) divisible by 4."}),
"frame_selection_string": ("STRING", {"default": "0, 10:20", "multiline": False, "tooltip": "Comma-separated integers or ranges (e.g., 0, 5, 10:15, 20) of frames to extract from input video. Takes precedence over depth_frames."}),
"empty_frame_fill_level": ("FLOAT", {"default": 0.5, "min": 0.0, "max": 1.0, "step": 0.01, "tooltip": "Grayscale level (0.0 black, 1.0 white) for frames not explicitly selected or filled by depth."}),
},
"optional": {
"depth_video_frames": ("IMAGE", {"tooltip": "Optional depth frames (IMAGE batch). Placed if the slot is not already filled by frame_selection_string."}),
"master_inpaint_mask": ("MASK", {"tooltip": "Optional master inpaint mask. If provided, it defines the entire output mask, overriding masks for selected/depth frames."}),
},
}
RETURN_TYPES = ("IMAGE", "MASK",)
RETURN_NAMES = ("guidance_video_frames", "guidance_frame_masks",)
FUNCTION = "extract_frames_and_generate_masks"
CATEGORY = "Steerable-Motion"
DESCRIPTION = "Extracts/places frames from input/depth video into a new guidance video and generates corresponding masks. frame_selection_string takes precedence over depth frames."
def _parse_frame_selection_string(self, selection_string, max_frame_index_from_input):
selected_frame_indices = set()
selection_parts = selection_string.split(',')
for part in selection_parts:
part = part.strip()
if not part:
continue
if ':' in part:
try:
start_str, end_str = part.split(':')
start_frame = int(start_str)
end_frame = int(end_str)
if start_frame < 0 or end_frame < 0:
log.warning(f"Frame indices cannot be negative in '{part}'. Skipping.")
continue
if start_frame > end_frame:
log.warning(f"Range start {start_frame} is greater than end {end_frame} in '{part}'. Swapping.")
start_frame, end_frame = end_frame, start_frame
for frame_idx in range(start_frame, end_frame + 1): # Inclusive range
if 0 <= frame_idx <= max_frame_index_from_input:
selected_frame_indices.add(frame_idx)
else:
log.warning(f"Frame index {frame_idx} from range '{part}' is out of bounds for input video (0-{max_frame_index_from_input}). Skipping this specific index.")
except ValueError:
log.error(f"Invalid range format '{part}'. Skipping.")
else:
try:
frame_idx = int(part)
if frame_idx < 0:
log.warning(f"Frame index {frame_idx} cannot be negative. Skipping.")
continue
if 0 <= frame_idx <= max_frame_index_from_input:
selected_frame_indices.add(frame_idx)
else:
log.warning(f"Frame index {frame_idx} is out of bounds for input video (0-{max_frame_index_from_input}). Skipping.")
except ValueError:
log.error(f"Invalid frame index '{part}'. Skipping.")
return sorted(list(selected_frame_indices))
def extract_frames_and_generate_masks(self, input_video_frames, total_output_frames, frame_selection_string, empty_frame_fill_level, depth_video_frames=None, master_inpaint_mask=None):
# Convert string parameter to integer
total_output_frames = int(total_output_frames)
if (total_output_frames - 1) % 4 != 0:
raise ValueError("total_output_frames must satisfy (frames - 1) divisible by 4")
if input_video_frames is None or input_video_frames.shape[0] == 0:
log.error("Input video_frames is empty. Cannot proceed.")
dummy_height, dummy_width, dummy_channels = 64, 64, 3
return (torch.zeros((total_output_frames, dummy_height, dummy_width, dummy_channels), dtype=torch.float32),
torch.ones((total_output_frames, dummy_height, dummy_width), dtype=torch.float32))
device = input_video_frames.device
dtype = input_video_frames.dtype
batch_size_input, frame_height, frame_width, num_channels = input_video_frames.shape
max_input_frame_index = batch_size_input - 1
# Initialize guidance video with empty_frame_fill_level
guidance_video_output = torch.ones((total_output_frames, frame_height, frame_width, num_channels), device=device, dtype=dtype) * empty_frame_fill_level
# Initialize base masks: 1 for unknown/inpaint, 0 for known
base_frame_masks = torch.ones((total_output_frames, frame_height, frame_width), device=device, dtype=dtype)
# 1. Process frame_selection_string (highest priority)
selected_input_frame_indices = self._parse_frame_selection_string(frame_selection_string, max_input_frame_index)
log.info(f"Frames selected by 'frame_selection_string': {selected_input_frame_indices}")
for input_frame_index in selected_input_frame_indices:
# The selected_input_frame_indices are indices from the *input_video*.
# We place them at the *same index* in the output guidance_video if that index is valid.
target_output_frame_index = input_frame_index
if target_output_frame_index < total_output_frames:
guidance_video_output[target_output_frame_index] = input_video_frames[input_frame_index].clone()
base_frame_masks[target_output_frame_index] = 0.0 # This frame is now known and prioritized
log.debug(f"Placed frame {input_frame_index} from input_video_frames into guidance_video at index {target_output_frame_index}.")
else:
log.warning(f"Selected frame index {input_frame_index} from input video maps to target index {target_output_frame_index}, which is >= total_output_frames ({total_output_frames}). It won't be placed.")
# 2. Process depth_video_frames (second priority)
if depth_video_frames is not None and depth_video_frames.shape[0] > 0:
log.info(f"Processing {depth_video_frames.shape[0]} depth_video_frames.")
processed_depth_frames = depth_video_frames.clone().to(device=device, dtype=dtype)
# Resize depth_video_frames if their dimensions don't match input_video_frames
if processed_depth_frames.shape[1:] != (frame_height, frame_width, num_channels):
log.info(f"Resizing depth_video_frames from {processed_depth_frames.shape[1:]} to {(frame_height, frame_width, num_channels)} to match input_video_frames.")
resized_depth_frame_list = []
for frame_idx in range(processed_depth_frames.shape[0]):
# common_upscale expects (B, C, H, W) or (B, H, W)
# IMAGE is (B,H,W,C), so permute, upscale, permute back
frame_to_resize = processed_depth_frames[frame_idx:frame_idx+1].permute(0, 3, 1, 2) # (1, C, H_depth, W_depth)
resized_frame = common_upscale(frame_to_resize, frame_width, frame_height, "lanczos", "disabled") # (1, C, H, W)
resized_depth_frame_list.append(resized_frame.permute(0, 2, 3, 1)) # (1, H, W, C)
processed_depth_frames = torch.cat(resized_depth_frame_list, dim=0)
num_depth_frames_to_place = min(processed_depth_frames.shape[0], total_output_frames)
for frame_idx in range(num_depth_frames_to_place):
# Check if this slot in guidance_video is still an "empty" placeholder
# (i.e., its mask is still 1.0, meaning not filled by frame_selection_string)
if base_frame_masks[frame_idx].mean() > 0.99: # Check if it's still (mostly) 1.0
guidance_video_output[frame_idx] = processed_depth_frames[frame_idx].clone()
# Keep mask as 1.0 for depth frames (inpaint area) - don't set to 0.0
log.debug(f"Placed frame {frame_idx} from depth_video_frames into guidance_video at index {frame_idx} (keeping as inpaint area).")
else:
log.debug(f"Skipping depth_frame {frame_idx} as guidance_video index {frame_idx} was already filled by frame_selection_string.")
else:
log.info("No depth_video_frames provided or depth_video_frames is empty.")
# 3. Handle optional master_inpaint_mask (this will override base_frame_masks if provided)
final_frame_masks = base_frame_masks
if master_inpaint_mask is not None:
log.info("Processing provided master_inpaint_mask. This will override masks derived from frame/depth selection.")
processed_master_mask = master_inpaint_mask.clone().to(device=device, dtype=dtype)
if processed_master_mask.shape[1:] != (frame_height, frame_width):
log.info(f"Resizing master_inpaint_mask from {processed_master_mask.shape[1:]} to {(frame_height, frame_width)}.")
processed_master_mask = common_upscale(
processed_master_mask.unsqueeze(1),
frame_width, frame_height, "nearest-exact", "disabled"
).squeeze(1)
if processed_master_mask.shape[0] != total_output_frames:
log.info(f"Adjusting master_inpaint_mask frame count from {processed_master_mask.shape[0]} to {total_output_frames}.")
if processed_master_mask.shape[0] == 0:
log.error("Received an empty master_inpaint_mask after processing. Using base masks.")
elif processed_master_mask.shape[0] < total_output_frames:
num_mask_repeats = (total_output_frames + processed_master_mask.shape[0] - 1) // processed_master_mask.shape[0]
processed_master_mask = processed_master_mask.repeat(num_mask_repeats, 1, 1)[:total_output_frames]
else:
processed_master_mask = processed_master_mask[:total_output_frames]
final_frame_masks = processed_master_mask
return (guidance_video_output.cpu().float(), final_frame_masks.cpu().float())
class VideoContinuationGenerator:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"input_video_frames": ("IMAGE", {"tooltip": "Input video frames to create continuation from."}),
"total_output_frames": ("INT", {"default": 81, "min": 1, "max": 81, "step": 4, "tooltip": "Total number of frames for the output continuation video. Must satisfy: (frames - 1) divisible by 4."}),
"overlap_frames": ("INT", {"default": 3, "min": 1, "max": 50, "step": 1, "tooltip": "Number of frames from the end of input video to use as overlap at the start."}),
"empty_frame_fill_level": ("FLOAT", {"default": 0.5, "min": 0.0, "max": 1.0, "step": 0.01, "tooltip": "Grayscale level (0.0 black, 1.0 white) for empty continuation frames."}),
},
"optional": {
"end_frame": ("IMAGE", {"tooltip": "Optional single frame to place at the end of the continuation video."}),
"control_images": ("IMAGE", {"tooltip": "Optional control images to fill the empty frames."}),
"inpaint_mask": ("MASK", {"tooltip": "Optional inpaint mask to use for the empty frames, overriding the default mask."}),
"continuation_mode": (["Generate new content", "Stitch to existing sequence"], {"default": "Generate new content", "tooltip": "Choose 'Generate new content' if your control images are only for the new section. Choose 'Stitch to existing sequence' if your control images represent the full, final timeline."}),
},
}
RETURN_TYPES = ("IMAGE", "MASK",)
RETURN_NAMES = ("continuation_video_frames", "continuation_frame_masks",)
FUNCTION = "generate_continuation_video"
CATEGORY = "Steerable-Motion"
DESCRIPTION = "Creates a continuation video by placing overlap frames from the end of input video at the start, with optional end frame."
def generate_continuation_video(self, input_video_frames, total_output_frames, overlap_frames, empty_frame_fill_level, end_frame=None, control_images=None, inpaint_mask=None, continuation_mode="Generate new content"):
# 1. Validation and Setup
total_output_frames = int(total_output_frames)
if (total_output_frames - 1) % 4 != 0:
raise ValueError("total_output_frames must satisfy (frames - 1) divisible by 4")
if input_video_frames is None or input_video_frames.shape[0] == 0:
log.error("Input video_frames is empty. Cannot proceed.")
dummy_height, dummy_width, dummy_channels = 64, 64, 3
return (torch.zeros((total_output_frames, dummy_height, dummy_width, dummy_channels), dtype=torch.float32),
torch.ones((total_output_frames, dummy_height, dummy_width), dtype=torch.float32))
device = input_video_frames.device
dtype = input_video_frames.dtype
batch_size_input, frame_height, frame_width, num_channels = input_video_frames.shape
# 2. Prepare Start Frames (from overlap)
actual_overlap_frames = min(overlap_frames, batch_size_input, total_output_frames)
if actual_overlap_frames < overlap_frames:
log.warning(f"Requested {overlap_frames} overlap frames but input video only has {batch_size_input} frames or total output is smaller. Using {actual_overlap_frames} instead.")
overlap_start_idx = batch_size_input - actual_overlap_frames
start_frames_part = input_video_frames[overlap_start_idx : overlap_start_idx + actual_overlap_frames].clone()
# 3. Prepare End Frame
end_frame_part = torch.empty((0, frame_height, frame_width, num_channels), device=device, dtype=dtype)
num_end_frames = 0
if end_frame is not None and end_frame.shape[0] > 0 and total_output_frames > actual_overlap_frames:
num_end_frames = 1
end_frame_processed = end_frame[0].clone().to(device=device, dtype=dtype)
if end_frame_processed.shape != (frame_height, frame_width, num_channels):
log.info(f"Resizing end_frame from {end_frame_processed.shape} to {(frame_height, frame_width, num_channels)}.")
frame_to_resize = end_frame_processed.unsqueeze(0).permute(0, 3, 1, 2)
resized_frame = common_upscale(frame_to_resize, frame_width, frame_height, "lanczos", "disabled")
end_frame_processed = resized_frame.permute(0, 2, 3, 1).squeeze(0)
end_frame_part = end_frame_processed.unsqueeze(0)
# 4. Prepare Middle Frames
num_middle_frames = total_output_frames - actual_overlap_frames - num_end_frames
middle_frames_part = torch.empty((0, frame_height, frame_width, num_channels), device=device, dtype=dtype)
if num_middle_frames > 0:
if control_images is not None:
log.info(f"Using 'control_images' to fill the {num_middle_frames} middle frames with '{continuation_mode}' mode.")
control_images_resized = common_upscale(control_images.movedim(-1, 1), frame_width, frame_height, "lanczos", "disabled").movedim(1, -1)
if continuation_mode == "Generate new content":
# Use control frames from the beginning of the sequence (C0, C1, C2...)
if control_images_resized.shape[0] < num_middle_frames:
log.warning(f"Provided 'control_images' have {control_images_resized.shape[0]} frames, less than needed ({num_middle_frames}). Padding with 'empty_frame_fill_level'.")
padding_needed = num_middle_frames - control_images_resized.shape[0]
padding = torch.ones((padding_needed, frame_height, frame_width, num_channels), device=device, dtype=dtype) * empty_frame_fill_level
middle_frames_part = torch.cat([control_images_resized, padding], dim=0)
else:
middle_frames_part = control_images_resized[:num_middle_frames].clone()
else: # "Stitch to existing sequence"
# Skip the first overlap_frames control images to avoid duplication
duplicate_count = min(actual_overlap_frames, control_images_resized.shape[0])
available_after_dup = control_images_resized.shape[0] - duplicate_count
if available_after_dup < num_middle_frames:
log.info(f"After skipping {duplicate_count} control frames, only {available_after_dup} remain; padding {num_middle_frames - available_after_dup} frames with 'empty_frame_fill_level'.")
selected_control = control_images_resized[duplicate_count:]
padding_needed = num_middle_frames - selected_control.shape[0]
padding = torch.ones((padding_needed, frame_height, frame_width, num_channels), device=device, dtype=dtype) * empty_frame_fill_level
middle_frames_part = torch.cat([selected_control, padding], dim=0)
else:
middle_frames_part = control_images_resized[duplicate_count:duplicate_count + num_middle_frames].clone()
else:
log.info(f"No 'control_images', filling {num_middle_frames} middle frames with level {empty_frame_fill_level}.")
middle_frames_part = torch.ones((num_middle_frames, frame_height, frame_width, num_channels), device=device, dtype=dtype) * empty_frame_fill_level
# 5. Assemble Final Video
continuation_video_output = torch.cat([start_frames_part, middle_frames_part, end_frame_part], dim=0)
# 6. Create Mask
continuation_frame_masks = torch.ones((total_output_frames, frame_height, frame_width), device=device, dtype=dtype)
# Apply mask logic based on continuation_mode parameter
if continuation_mode == "Generate new content":
# Set known frames (overlap and end) to 0.0, rest stay as 1.0 (inpaint)
if actual_overlap_frames > 0:
continuation_frame_masks[0:actual_overlap_frames] = 0.0
if num_end_frames > 0:
continuation_frame_masks[-num_end_frames:] = 0.0
else: # "Stitch to existing sequence"
# Set known frames (overlap and end) to 0.0, but also set middle section based on control frame logic
if actual_overlap_frames > 0:
continuation_frame_masks[0:actual_overlap_frames] = 0.0
if num_end_frames > 0:
continuation_frame_masks[-num_end_frames:] = 0.0
# For middle section, follow the same logic as control frames
if control_images is not None and num_middle_frames > 0:
duplicate_count = min(actual_overlap_frames, control_images.shape[0])
available_after_dup = control_images.shape[0] - duplicate_count
if available_after_dup >= num_middle_frames:
# If we have enough control frames after skipping, set those middle frames as known (0.0)
middle_start = actual_overlap_frames
middle_end = middle_start + num_middle_frames
continuation_frame_masks[middle_start:middle_end] = 0.0
# 7. Handle optional inpaint_mask override
if inpaint_mask is not None:
log.info("Processing provided 'inpaint_mask', which will override the automatically generated mask.")
processed_mask = common_upscale(inpaint_mask.unsqueeze(1), frame_width, frame_height, "nearest-exact", "disabled").squeeze(1).to(device)
if processed_mask.shape[0] != total_output_frames:
log.info(f"Adjusting inpaint_mask frame count from {processed_mask.shape[0]} to {total_output_frames}.")
if processed_mask.shape[0] < total_output_frames:
num_repeats = (total_output_frames + processed_mask.shape[0] - 1) // processed_mask.shape[0]
processed_mask = processed_mask.repeat(num_repeats, 1, 1)[:total_output_frames]
else:
processed_mask = processed_mask[:total_output_frames]
continuation_frame_masks = processed_mask.to(dtype=dtype)
log.info(f"Generated continuation video. Start: {actual_overlap_frames} frames, Middle: {num_middle_frames} frames, End: {num_end_frames} frames.")
return (continuation_video_output.cpu().float(), continuation_frame_masks.cpu().float())
class WanInputFrameNumber:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"frame_number": ("INT", {"default": 81, "min": 1, "max": 10000, "step": 4, "tooltip": "Frame number where (frames - 1) is divisible by 4."}),
},
}
RETURN_TYPES = ("INT",)
RETURN_NAMES = ("frame_number",)
FUNCTION = "get_frame_number"
CATEGORY = "Steerable-Motion"
DESCRIPTION = "Outputs a frame number that satisfies the WAN constraint: (frames - 1) divisible by 4."
def get_frame_number(self, frame_number):
frame_number = int(frame_number)
if (frame_number - 1) % 4 != 0:
raise ValueError("frame_number must satisfy (frame_number - 1) divisible by 4")
return (frame_number,)
class WanVideoBlenderNode:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"overlap_frames": ("INT", {"default": 10, "min": 1, "max": 1000, "step": 1}),
"video_1": ("IMAGE",),
"video_2": ("IMAGE",),
},
}
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("blended_video_frames",)
FUNCTION = "blend_videos"
CATEGORY = "Steerable-Motion"
DESCRIPTION = "Blends two input videos with a cross-fade. The resolution of the second clip is resized to match the first."
def _resize_video(self, video, target_height, target_width):
"""Resize a batch of frames (B,H,W,C) to (target_height,target_width) using Lanczos."""
if video.shape[1] == target_height and video.shape[2] == target_width:
return video
# (B, H, W, C) -> (B, C, H, W)
video_permuted = video.permute(0, 3, 1, 2)
resized = common_upscale(video_permuted, target_width, target_height, "lanczos", "disabled") # (B, C, H, W)
return resized.permute(0, 2, 3, 1)
def _cross_fade(self, tail, head, overlap_frames):
"""Blend two tensors of shape (overlap_frames,H,W,C) using linear alpha."""
device, dtype = tail.device, tail.dtype
alphas = torch.linspace(0, 1, overlap_frames, device=device, dtype=dtype).view(-1, 1, 1, 1)
blended = tail * (1 - alphas) + head * alphas
return blended
def blend_videos(self, overlap_frames, video_1, video_2):
if video_1 is None or video_2 is None:
raise ValueError("Both video_1 and video_2 are required.")
# Reference dimensions and properties from first video
ref_h, ref_w = video_1.shape[1:3]
# Ensure second video matches size
video_2_resized = self._resize_video(video_2, ref_h, ref_w)
if video_1.shape[0] < overlap_frames or video_2_resized.shape[0] < overlap_frames:
raise ValueError(f"One of the videos is shorter than overlap_frames={overlap_frames}.")
# Extract segments for blending
tail = video_1[-overlap_frames:]
head = video_2_resized[:overlap_frames]
blended = self._cross_fade(tail, head, overlap_frames)
# Assemble new timeline
final_video = torch.cat([
video_1[:-overlap_frames],
blended,
video_2_resized[overlap_frames:]
], dim=0)
return (final_video.cpu().float(),)
# NODE MAPPING
NODE_CLASS_MAPPINGS = {
"BatchCreativeInterpolation": BatchCreativeInterpolationNode,
"IpaConfiguration": IpaConfigurationNode,
"RemoveAndInterpolateFrames": RemoveAndInterpolateFramesNode,
"VideoFrameExtractorAndMaskGenerator": VideoFrameExtractorAndMaskGenerator,
"VideoContinuationGenerator": VideoContinuationGenerator,
"WanInputFrameNumber": WanInputFrameNumber,
"WanVideoBlender": WanVideoBlenderNode,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"BatchCreativeInterpolation": "Batch Creative Interpolation 🎞️🅢🅜",
"IpaConfiguration": "IP-Adapter Configuration 🎞️🅢🅜",
"RemoveAndInterpolateFrames": "Remove and Interpolate Frames 🎞️🅢🅜",
"VideoFrameExtractorAndMaskGenerator": "Video Frame Extractor & Mask Generator 🎞️🅢🅜",
"VideoContinuationGenerator": "Video Continuation Generator 🎞️🅢🅜",
"WanInputFrameNumber": "WAN Input Frame Number 🎞️🅢🅜",
"WanVideoBlender": "WAN Video Blender 🎞️🅢🅜",
}
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