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olivv-cs-ComfyUI-FunPack/funpack.py
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2026-01-23 20:53:31 +02:00

1400 lines
59 KiB
Python

import os
import torch
from transformers import LlamaConfig, LlamaForCausalLM, LlavaForConditionalGeneration, AutoModelForCausalLM, AutoTokenizer, AutoConfig
from huggingface_hub import hf_hub_download, snapshot_download
from safetensors.torch import load_file, save_file, safe_open
import glob
import comfy.model_management as mm
import comfy.sd as sd
import folder_paths
import nodes
import tempfile
import gc # Import garbage collector
import torch.nn as nn
import torch.nn.functional as F
import numpy as np
from PIL import Image
import folder_paths
from comfy.utils import ProgressBar
import comfy.clip_vision
import math
import json
from comfy.utils import ProgressBar
import random
import re
# Constants from StoryMem
IMAGE_FACTOR = 28
VIDEO_MIN_PIXELS = 48 * IMAGE_FACTOR * IMAGE_FACTOR # 37,632
MIN_FRAME_SIMILARITY = 0.9
MAX_KEYFRAME_NUM = 3
ADAPTIVE_ALPHA = 0.01
HPSV3_QUALITY_THRESHOLD = 3.0
class FunPackLorebookEnhancer:
"""
Injects context from SillyTavern-style lorebook JSON files.
Always appends activated entries to the END of the prompt.
Supports multiple lorebooks, constants, selective filtering, probability, etc.
"""
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"prompt": ("STRING", {
"multiline": True,
"default": "The brave explorer enters an ancient forest temple at twilight, discovering glowing runes on the walls."
}),
},
"optional": {
"lorebook_1": ("STRING", {"default": "", "multiline": False}),
"lorebook_2": ("STRING", {"default": "", "multiline": False}),
"lorebook_3": ("STRING", {"default": "", "multiline": False}),
"lorebook_4": ("STRING", {"default": "", "multiline": False}),
"context_history": ("STRING", {"multiline": True, "default": ""}),
"scan_depth": ("INT", {
"default": 4,
"min": 1,
"max": 12,
"step": 1
}),
}
}
RETURN_TYPES = ("STRING", "STRING")
RETURN_NAMES = ("enhanced_prompt", "injected_content")
FUNCTION = "enhance"
CATEGORY = "FunPack"
OUTPUT_NODE = True
def _match_keys(self, keys, text):
if not keys:
return False
if isinstance(keys, str):
keys = [k.strip() for k in keys.split(",") if k.strip()]
text = text.lower()
for key in keys:
key = key.strip()
if not key:
continue
if key.startswith("/") and key.endswith("/"):
try:
pattern = re.compile(key[1:-1], re.IGNORECASE)
if pattern.search(text):
return True
except:
continue
elif key.lower() in text:
return True
return False
def _match_secondary(self, secs, text, logic):
if not secs:
return True
if isinstance(secs, str):
secs = [s.strip() for s in secs.split(",") if s.strip()]
matches = [self._match_keys([s], text) for s in secs]
if logic == 0: return any(matches)
elif logic == 1: return all(matches)
elif logic == 2: return not any(matches)
elif logic == 3: return not all(matches)
return True
def _process_lorebook(self, path, scan_text, activated):
if not path or not os.path.exists(path):
print(f"[Lorebook Enhancer] File not found: {path}")
return activated
try:
with open(path, 'r', encoding='utf-8') as f:
lorebook = json.load(f)
entries = lorebook.get("entries", [])
if isinstance(entries, dict):
entries = list(entries.values())
for entry in entries:
if not entry.get("enabled", True):
continue
is_constant = entry.get("constant", False)
if not is_constant:
if not self._match_keys(entry.get("key", []), scan_text):
continue
if entry.get("selective", False):
sec_keys = entry.get("keysecondary", []) or entry.get("secondary_keys", [])
logic = entry.get("selectiveLogic", 0)
if not self._match_secondary(sec_keys, scan_text, logic):
continue
prob = entry.get("extensions", {}).get("probability", 100)
if random.randint(1, 100) > prob:
continue
activated.append(entry)
except json.JSONDecodeError as e:
print(f"[Lorebook Enhancer] JSON decode error in {path}: {str(e)}")
except Exception as e:
print(f"[Lorebook Enhancer] Failed to process {path}: {type(e).__name__}: {str(e)}")
return activated
def enhance(self, prompt,
lorebook_1="", lorebook_2="", lorebook_3="", lorebook_4="",
context_history="", scan_depth=4):
full_text = (context_history + "\n" + prompt).lower()
lines = full_text.splitlines()
scan_text = "\n".join(lines[-scan_depth:]) if scan_depth > 0 else full_text
activated = []
for path in [lorebook_1, lorebook_2, lorebook_3, lorebook_4]:
if path.strip():
activated = self._process_lorebook(path.strip(), scan_text, activated)
if not activated:
return (prompt, "No lorebook entries were triggered.")
activated.sort(key=lambda e: e.get("insertion_order", e.get("order", 0)))
injected = []
enhanced = prompt.strip() # clean up any trailing space
for entry in activated:
content = entry.get("content", "").strip()
if not content:
continue
# Always append to the end - this is the requested behavior
if enhanced:
enhanced += "\n" + content
else:
enhanced = content
source = entry.get("comment") or entry.get("name") or f"uid:{entry.get('uid','?')}" or "unnamed"
injected.append(f"[{source}] {content}")
injected_text = "\n\n".join(injected) if injected else "No content injected"
return (enhanced, injected_text)
class FunPackStoryMemJSONConverter:
"""
FunPack StoryMem LoRA JSON Converter - supports both manual input and Qwen-generated output.
Features:
- Lenient parsing: auto-adjusts mismatched lengths for cut/first_frame_prompt
- Handles 'cut' as single bool (replicates) or list
- NO forced first cut=True (user can control via prompt or manual input)
- Safe defaults on invalid data → no crashes
- Splits full Qwen story into up to 3 separate scene JSONs
When use_qwen_output=False → uses manual per-scene inputs with the same leniency.
"""
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"use_qwen_output": ("BOOLEAN", {
"default": False,
"label_on": "Use Qwen Output (ignores manual scenes below)",
"label_off": "Use Manual Scene Inputs",
"tooltip": "Toggle between Qwen-generated full story JSON or classic manual per-scene setup"
}),
"qwen_output": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "Connect STRING output from Kijai's WanVideoPromptExtender / Qwen enhancer here.\nDrag wire onto the left side of this box to convert to input socket."
}),
"story_name": ("STRING", {
"default": "",
"tooltip": "Story title (used in all output JSONs)"
}),
"story_overview": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "Overall story summary (shared across all scenes)"
}),
# Scene 1
"scene1_video_prompts": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "One prompt per line (each = 5-sec clip)"
}),
"scene1_first_frame_prompts": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "First frame description per prompt (will auto-adjust to match count)"
}),
"scene1_cut_values": ("STRING", {
"default": "",
"tooltip": "Comma-separated booleans: true,false,true,... (will auto-adjust to match prompt count)"
}),
# Scene 2
"scene2_video_prompts": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "One prompt per line (each = 5-sec clip)"
}),
"scene2_first_frame_prompts": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "First frame description per prompt (will auto-adjust to match count)"
}),
"scene2_cut_values": ("STRING", {
"default": "",
"tooltip": "Comma-separated booleans: true,false,true,... (will auto-adjust to match prompt count)"
}),
# Scene 3
"scene3_video_prompts": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "One prompt per line (each = 5-sec clip)"
}),
"scene3_first_frame_prompts": ("STRING", {
"multiline": True,
"default": "",
"tooltip": "First frame description per prompt (will auto-adjust to match count)"
}),
"scene3_cut_values": ("STRING", {
"default": "",
"tooltip": "Comma-separated booleans: true,false,true,... (will auto-adjust to match prompt count)"
}),
},
"optional": {
"qwen_mode_notice": ("STRING", {
"multiline": True,
"default": "!!! QWEN MODE ACTIVE !!!\nAll manual inputs below are completely ignored\nConnect the Qwen JSON string above.",
"tooltip": "Reminder - only visible/meaningful when use_qwen_output = True"
})
}
}
RETURN_TYPES = ("STRING", "STRING", "STRING")
RETURN_NAMES = ("json_scene_1", "json_scene_2", "json_scene_3")
OUTPUT_NODE = True
FUNCTION = "convert"
CATEGORY = "FunPack"
def convert(self,
use_qwen_output,
qwen_output,
story_name, story_overview,
scene1_video_prompts, scene1_first_frame_prompts, scene1_cut_values,
scene2_video_prompts, scene2_first_frame_prompts, scene2_cut_values,
scene3_video_prompts, scene3_first_frame_prompts, scene3_cut_values,
qwen_mode_notice=""):
if use_qwen_output:
if not qwen_output.strip():
raise ValueError("Qwen mode enabled but 'qwen_output' is empty! Connect Kijai's prompt enhancer output.")
pbar = ProgressBar(2)
try:
full_data = json.loads(qwen_output)
except json.JSONDecodeError as e:
raise ValueError(f"Failed to parse Qwen output as JSON:\n{str(e)}\n\nMake sure system prompt instructs Qwen to return **only** valid JSON.")
story_name = full_data.get("story_name", "Generated Story")
story_overview = full_data.get("story_overview", "Generated overview")
scenes = full_data.get("scenes", [])
if not isinstance(scenes, list) or not scenes:
raise ValueError("Qwen JSON must contain non-empty 'scenes' list.")
outputs = ["", "", ""]
for i, scene in enumerate(scenes[:3]):
if not isinstance(scene, dict):
continue
scene_num = scene.get("scene_num", i+1)
video_prompts = scene.get("video_prompts", [])
first_frame_prompt = scene.get("first_frame_prompt", [])
cut = scene.get("cut", [])
if not video_prompts:
continue
num_prompts = len(video_prompts)
# Lenient: adjust first_frame_prompt
if len(first_frame_prompt) < num_prompts:
if first_frame_prompt:
first_frame_prompt += [first_frame_prompt[-1]] * (num_prompts - len(first_frame_prompt))
else:
first_frame_prompt = [""] * num_prompts
elif len(first_frame_prompt) > num_prompts:
first_frame_prompt = first_frame_prompt[:num_prompts]
# Lenient: handle cut (single bool or mismatched list)
if isinstance(cut, bool):
cut = [cut] * num_prompts
elif not isinstance(cut, list) or not all(isinstance(c, bool) for c in cut):
cut = [False] * num_prompts # Default to no cuts
else:
if len(cut) < num_prompts:
cut += [cut[-1] if cut else False] * (num_prompts - len(cut))
elif len(cut) > num_prompts:
cut = cut[:num_prompts]
# NO forced first cut=True anymore
single_scene_data = {
"scene_num": scene_num,
"video_prompts": video_prompts,
"first_frame_prompt": first_frame_prompt,
"cut": cut
}
json_data = {
"story_name": story_name,
"story_overview": story_overview,
"scenes": [single_scene_data]
}
outputs[i] = json.dumps(json_data, indent=2, ensure_ascii=False)
pbar.update(2)
return tuple(outputs)
else:
# Manual mode - same leniency
scenes_input = [
(scene1_video_prompts, scene1_first_frame_prompts, scene1_cut_values, 1),
(scene2_video_prompts, scene2_first_frame_prompts, scene2_cut_values, 2),
(scene3_video_prompts, scene3_first_frame_prompts, scene3_cut_values, 3),
]
outputs = ["", "", ""]
for i, (video_text, first_text, cuts_text, scene_num) in enumerate(scenes_input):
if not video_text.strip():
continue
video_prompts = [p.strip() for p in video_text.split("\n") if p.strip()]
if not video_prompts:
continue
num_prompts = len(video_prompts)
first_prompts = [f.strip() for f in first_text.split("\n") if f.strip()]
# Lenient adjust first_prompts
if len(first_prompts) < num_prompts:
if first_prompts:
first_prompts += [first_prompts[-1]] * (num_prompts - len(first_prompts))
else:
first_prompts = [""] * num_prompts
elif len(first_prompts) > num_prompts:
first_prompts = first_prompts[:num_prompts]
# Parse cuts leniently
if cuts_text.strip():
cuts_str = [c.strip().lower() for c in cuts_text.split(",") if c.strip()]
cuts = []
for c in cuts_str:
if c in ("true", "t", "1", "yes"):
cuts.append(True)
else:
cuts.append(False) # default for invalid or false
else:
cuts = [False] * num_prompts
# Lenient adjust cuts
if len(cuts) < num_prompts:
cuts += [cuts[-1] if cuts else False] * (num_prompts - len(cuts))
elif len(cuts) > num_prompts:
cuts = cuts[:num_prompts]
# NO forced first cut=True
scene = {
"scene_num": scene_num,
"video_prompts": video_prompts,
"first_frame_prompt": first_prompts,
"cut": cuts
}
full_json = {
"story_name": story_name.strip() or "Manual Story",
"story_overview": story_overview.strip() or "Manual overview",
"scenes": [scene]
}
outputs[i] = json.dumps(full_json, indent=2, ensure_ascii=False)
return tuple(outputs)
class FunPackImg2LatentInterpolation:
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"images": ("IMAGE",),
"frame_count": ("INT", {"default": 25, "min": 1, "max": 125, "step": 4}),
}
}
RETURN_TYPES = ("IMAGE", "IMAGE")
RETURN_NAMES = ("img_batch_for_encode", "img_for_start_image")
FUNCTION = "process"
CATEGORY = "FunPack"
def process(self, images, frame_count):
device = images.device
total_input_frames = images.shape[0]
# 1. Take the last frame as our starting point
last_frame = images[-1:]
# 2. Generate smooth transition from this frame
interpolated = []
# First frame is exact copy of last input frame (for perfect continuity)
interpolated.append(last_frame.clone())
# Generate remaining frames with increasing denoise
for i in range(1, frame_count):
# Calculate denoise strength (0 at start, 1 at end)
denoise_strength = i / (frame_count - 1)
# Apply denoising
noise = torch.randn_like(last_frame)
blended = (1 - denoise_strength) * last_frame + denoise_strength * noise
interpolated.append(blended)
# Convert to tensor
output = torch.cat(interpolated, dim=0)
# Preview is first frame (same as input's last frame)
preview = interpolated[0].clone()
return (output, preview)
class FunPackPromptEnhancer:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"user_prompt": ("STRING", {"multiline": True, "default": "A photo of a [subject] in a [setting]. [action]."}),
"system_prompt": ("STRING", {
"multiline": True,
"default": "<You are a creative AI assistant tasked with describing videos.\n\nDescribe the video by detailing the following aspects:\n1. The main content and theme of the video.\n2. The color, shape, size, texture, quantity, text, and spatial relationships of the objects.\n3. Actions, events, behaviors temporal relationships, physical movement changes of the objects.\n4. background environment, light, style and atmosphere.\n5. camera angles, movements, and transitions used in the video:"
}),
"model_path_type": (["Local Safetensors", "HuggingFace Pretrained"],),
"model_path": ("STRING", {"multiline": False, "default": "mlabonne/NeuralLlama-3-8B-Instruct-abliterated"}),
"llm_safetensors_file": (folder_paths.get_filename_list('clip'),),
"top_p": ("FLOAT", {"min": 0.0, "max": 2.0, "step": 0.05, "default": 0.75}),
"top_k": ("INT", {"min": 0, "max": 1000, "step": 1, "default": 40}),
"temperature": ("FLOAT", {"min": 0.0, "max": 2.0, "step": 0.01, "default": 0.6}),
"max_new_tokens": ("INT", {"min": 64, "max": 4096, "step": 64, "default": 512}),
"repetition_penalty": ("FLOAT", {"min": 0.0, "max": 3.0, "step": 0.01, "default": 1.0}),
}
}
RETURN_TYPES = ("STRING",)
RETURN_NAMES = ("enhanced_prompt",)
FUNCTION = "enhance_prompt"
CATEGORY = "FunPack"
def enhance_prompt(self, user_prompt, system_prompt, model_path_type, model_path, llm_safetensors_file, top_p, top_k, temperature, max_new_tokens, repetition_penalty):
llm_model = None
llm_tokenizer = None
llm_model_device = "cuda" if torch.cuda.is_available() else "cpu"
print(f"[FunPackPromptEnhancer] Starting prompt enhancement...")
try:
if model_path_type == "HuggingFace Pretrained":
print(f"[FunPackPromptEnhancer] Loading LLM from HuggingFace pretrained: {model_path}")
llm_tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
llm_model = AutoModelForCausalLM.from_pretrained(model_path, ignore_mismatched_sizes=True, trust_remote_code=True)
elif model_path_type == "Local Safetensors":
print(f"[FunPackPromptEnhancer] Loading LLM from local safetensors file: {llm_safetensors_file}")
full_safetensors_path = folder_paths.get_full_path('clip', llm_safetensors_file)
llm_tokenizer = AutoTokenizer.from_pretrained("xtuner/llava-llama-3-8b-v1_1-transformers", trust_remote_code=True)
config = AutoConfig.from_pretrained("xtuner/llava-llama-3-8b-v1_1-transformers", trust_remote_code=True)
model_base = AutoModelForCausalLM.from_config(config, trust_remote_code=True)
state_dict = load_file(full_safetensors_path, device="cpu")
model_base.load_state_dict(state_dict, strict=False)
llm_model = model_base
llm_model = llm_model.eval().to(torch.bfloat16 if llm_model_device == "cuda" else torch.float32).to(llm_model_device).requires_grad_(False)
print(f"[FunPackPromptEnhancer] LLM model loaded successfully to {llm_model_device}!")
# Model detection to apply correct chat template
llm_tokenizer.chat_template = """{% set loop_messages = messages %}{% for message in loop_messages %}{% set content = '<|start_header_id|>' + message['role'] + '<|end_header_id|>\n\n' + message['content'] | trim + '<|eot_id|>' %}{% if loop.first %}{{ '<|begin_of_text|>' + content }}{% else %}{{ content }}{% endif %}{% endfor %}{{ '<|start_header_id|>assistant<|end_header_id|>\n\n' if add_generation_prompt else '' }}"""
messages = [
{"role": "system", "content": system_prompt},
{"role": "user", "content": user_prompt}
]
if llm_tokenizer.pad_token_id is None:
llm_tokenizer.pad_token = llm_tokenizer.eos_token
llm_tokenizer.pad_token_id = llm_tokenizer.eos_token_id
llm_tokens = llm_tokenizer.apply_chat_template(
messages,
add_generation_prompt=True,
return_tensors="pt",
tokenize=True
).to(llm_model_device)
print("[FunPackPromptEnhancer] Generating enhanced prompt...")
with torch.no_grad():
generated_ids = llm_model.generate(
input_ids=llm_tokens,
do_sample=True,
top_p=top_p,
top_k=top_k,
temperature=temperature,
max_new_tokens=max_new_tokens,
repetition_penalty=repetition_penalty,
pad_token_id=llm_tokenizer.pad_token_id
)
output_text = llm_tokenizer.decode(generated_ids[0][llm_tokens.shape[1]:], skip_special_tokens=True)
print(f"[FunPackPromptEnhancer] Enhanced prompt generated: {output_text}")
return (output_text,)
except Exception as e:
print(f"[FunPackPromptEnhancer] Error during prompt enhancement: {e}")
raise
finally:
if llm_model is not None:
del llm_model
llm_model = None
if llm_tokenizer is not None:
del llm_tokenizer
llm_tokenizer = None
if torch.cuda.is_available():
torch.cuda.empty_cache()
gc.collect()
print("[FunPackPromptEnhancer] LLM model and tokenizer unloaded and memory cleared.")
class FunPackStoryWriter:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"user_prompt": ("STRING", {"multiline": True, "default": "A photo of a [subject] in a [setting]. [action]."}),
"story_system_prompt": ("STRING", {
"multiline": True,
"default": ""
}),
"sequence_system_prompt": ("STRING", {
"multiline": True,
"default": ""
}),
"model_path_type": (["Local Safetensors", "HuggingFace Pretrained"],),
"model_path": ("STRING", {"multiline": False, "default": "mlabonne/NeuralLlama-3-8B-Instruct-abliterated"}),
"llm_safetensors_file": (folder_paths.get_filename_list('clip'),),
"prompt_count": ("INT", {"min": 1, "max": 5, "step": 1, "default": 3}),
"top_p": ("FLOAT", {"min": 0.0, "max": 2.0, "step": 0.05, "default": 0.75}),
"top_k": ("INT", {"min": 0, "max": 1000, "step": 1, "default": 40}),
"temperature": ("FLOAT", {"min": 0.0, "max": 2.0, "step": 0.01, "default": 0.6}),
"max_new_tokens": ("INT", {"min": 64, "max": 4096, "step": 64, "default": 512}),
"repetition_penalty": ("FLOAT", {"min": 0.0, "max": 3.0, "step": 0.01, "default": 1.0}),
"mode": (["Sequences from story", "Sequences from user prompt"],),
"sanity_check": ("BOOLEAN", {"default": True, "label": "Enable Sanity Check"}),
"sequence_system_prompt": ("STRING", {
"multiline": True,
"default": "Analyze the given sequence and perform a correction, if the sequence does not match the given requirements:\n1. The sequence is related to given user's prompt.\n2. The sequence contains only physically possible actions.\n3. The sequence contains information about characters, their appearances, positioning, actions, camera angle, focus and zoom.\n4. The sequence is fully describing the requested action.\n\nOutput ONLY corrected sequence, or return it unchanged if it matches the requirements. No additional text except for sequence is allowed."
}),
}
}
RETURN_TYPES = ("STRING","STRING","STRING","STRING","STRING",)
RETURN_NAMES = ("prompt1","prompt2","prompt3","prompt4","prompt5",)
FUNCTION = "write_story"
CATEGORY = "FunPack"
def write_story(self, user_prompt, story_system_prompt, sequence_system_prompt, model_path_type, model_path, llm_safetensors_file, prompt_count, top_p, top_k, temperature, max_new_tokens, repetition_penalty, mode, sanity_check):
llm_model = None
llm_tokenizer = None
llm_model_device = "cuda" if torch.cuda.is_available() else "cpu"
print(f"[FunPackPromptEnhancer] Making initial story...")
try:
if model_path_type == "HuggingFace Pretrained":
print(f"[FunPackStoryWriter] Loading LLM from HuggingFace pretrained: {model_path}")
llm_tokenizer = AutoTokenizer.from_pretrained(model_path, trust_remote_code=True)
llm_model = AutoModelForCausalLM.from_pretrained(model_path, ignore_mismatched_sizes=True, trust_remote_code=True)
elif model_path_type == "Local Safetensors":
print(f"[FunPackStoryWriter] Loading LLM from local safetensors file: {llm_safetensors_file}")
full_safetensors_path = folder_paths.get_full_path('clip', llm_safetensors_file)
llm_tokenizer = AutoTokenizer.from_pretrained("xtuner/llava-llama-3-8b-v1_1-transformers", trust_remote_code=True)
config = AutoConfig.from_pretrained("xtuner/llava-llama-3-8b-v1_1-transformers", trust_remote_code=True)
model_base = AutoModelForCausalLM.from_config(config, trust_remote_code=True)
state_dict = load_file(full_safetensors_path, device="cpu")
model_base.load_state_dict(state_dict, strict=False)
llm_model = model_base
llm_model = llm_model.eval().to(torch.bfloat16 if llm_model_device == "cuda" else torch.float32).to(llm_model_device).requires_grad_(False)
print(f"[FunPackStoryWriter] LLM model loaded successfully to {llm_model_device}!")
# Applying correct chat template
llm_tokenizer.chat_template = """{% set loop_messages = messages %}{% for message in loop_messages %}{% set content = '<|start_header_id|>' + message['role'] + '<|end_header_id|>\n\n' + message['content'] | trim + '<|eot_id|>' %}{% if loop.first %}{{ '<|begin_of_text|>' + content }}{% else %}{{ content }}{% endif %}{% endfor %}{{ '<|start_header_id|>assistant<|end_header_id|>\n\n' if add_generation_prompt else '' }}"""
# Inside write_story method, after model loading and template/pad fix
outputs = [""] * 5
# ── Initialize messages ONCE, depending on mode ────────────────────────────
if mode == "Sequences from story":
messages = [
{"role": "system", "content": story_system_prompt},
{"role": "user", "content": user_prompt}
]
# Generate hidden story
llm_tokens = llm_tokenizer.apply_chat_template(
messages, add_generation_prompt=True, return_tensors="pt", tokenize=True
).to(llm_model_device)
print("[FunPackStoryWriter] Generating hidden story...")
with torch.no_grad():
generated_ids = llm_model.generate(
input_ids=llm_tokens,
do_sample=True,
top_p=top_p, top_k=top_k, temperature=temperature,
max_new_tokens=max_new_tokens,
repetition_penalty=repetition_penalty,
pad_token_id=llm_tokenizer.pad_token_id,
eos_token_id=llm_tokenizer.eos_token_id,
)
story = llm_tokenizer.decode(generated_ids[0][llm_tokens.shape[1]:], skip_special_tokens=True).strip()
print(f"[FunPackStoryWriter] Hidden story: {story[:150]}...")
messages.append({"role": "assistant", "content": story})
else: # "Sequences from user prompt"
messages = [
{"role": "system", "content": sequence_system_prompt},
{"role": "user", "content": user_prompt}
]
# ── Now generate sequences — only add new instruction + append output ─────
for seq_idx in range(prompt_count):
# Add **only** the fresh sequence instruction each time
messages.append({"role": "user", "content": sequence_system_prompt})
llm_tokens = llm_tokenizer.apply_chat_template(
messages, add_generation_prompt=True, return_tensors="pt", tokenize=True
).to(llm_model_device)
print(f"[FunPackStoryWriter] Generating sequence {seq_idx + 1}/{prompt_count}...")
with torch.no_grad():
generated_ids = llm_model.generate(
input_ids=llm_tokens,
do_sample=True,
top_p=top_p,
top_k=top_k,
temperature=temperature,
max_new_tokens=max_new_tokens,
repetition_penalty=repetition_penalty,
pad_token_id=llm_tokenizer.pad_token_id,
eos_token_id=llm_tokenizer.eos_token_id,
)
seq_text = llm_tokenizer.decode(generated_ids[0][llm_tokens.shape[1]:], skip_special_tokens=True).strip()
if sanity_check == False:
print(f"[FunPackStoryWriter] Sequence {seq_idx + 1} (sanity check skipped): {seq_text}...")
# Performing sanity check - comparing sequence text to user's prompt according to rules in sanity check system prompt.
if sanity_check == True:
if mode == "Sequences from story":
sanity_messages = [
{"role": "system", "content": sanity_check_system_prompt},
{"role": "user", "content": f"""Original story: {story}
Original user prompt: {user_prompt}
Previous sequence (for continuity check): {outputs[seq_idx-1] if seq_idx > 0 else "This is the first sequence"}
Sequence to validate and correct if needed: {seq_text}}"""
]
else:
sanity_messages = [
{"role": "system", "content": sanity_check_system_prompt},
{"role": "user", "content": f"""Original user prompt: {user_prompt}
Previous sequence (for continuity check): {outputs[seq_idx-1] if seq_idx > 0 else "This is the first sequence"}
Sequence to validate and correct if needed: {seq_text}}"""
]
llm_tokens = llm_tokenizer.apply_chat_template(
sanity_messages, add_generation_prompt=True, return_tensors="pt", tokenize=True
).to(llm_model_device)
print(f"[FunPackStoryWriter] Performing sanity check on sequence {seq_idx + 1}/{prompt_count}...")
with torch.no_grad():
generated_ids = llm_model.generate(
input_ids=llm_tokens,
do_sample=False,
top_p=0.95,
top_k=top_k,
temperature=0.2,
max_new_tokens=1024,
repetition_penalty=1.05,
pad_token_id=llm_tokenizer.pad_token_id,
eos_token_id=llm_tokenizer.eos_token_id,
)
seq_text = llm_tokenizer.decode(generated_ids[0][llm_tokens.shape[1]:], skip_special_tokens=True).strip()
print(f"[FunPackStoryWriter] Sequence {seq_idx + 1} (sanity check performed): {seq_text}...")
outputs[seq_idx] = seq_text
# Append generated sequence — this is what chains everything
messages.append({"role": "assistant", "content": seq_text})
return tuple(outputs)
except Exception as e:
print(f"[FunPackStoryWriter] Error during prompt enhancement: {e}")
raise
finally:
if llm_model is not None:
del llm_model
llm_model = None
if llm_tokenizer is not None:
del llm_tokenizer
llm_tokenizer = None
if torch.cuda.is_available():
torch.cuda.empty_cache()
gc.collect()
print("[FunPackStoryWriter] LLM model and tokenizer unloaded and memory cleared.")
class FunPackVideoStitch:
CATEGORY = "FunPack"
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("STITCHED",)
FUNCTION = "stitch"
INPUT_TYPES = lambda: {
"required": {
"blend_frames": ("INT", {"default": 8, "min": 1, "max": 64}),
},
"optional": {
"video1": ("IMAGE",),
"video2": ("IMAGE",),
"video3": ("IMAGE",),
"video4": ("IMAGE",),
"video5": ("IMAGE",),
"video6": ("IMAGE",),
"video7": ("IMAGE",),
"video8": ("IMAGE",),
}
}
def linear_blend(self, batch_a, batch_b, blend_frames):
if blend_frames == 1:
blended_frame = 0.5 * batch_a[-1] + 0.5 * batch_b[0]
return blended_frame.unsqueeze(0)
blended = []
for i in range(blend_frames):
alpha = i / (blend_frames - 1)
blended_frame = (1 - alpha) * batch_a[-blend_frames + i] + alpha * batch_b[i]
blended.append(blended_frame.unsqueeze(0))
return torch.cat(blended, dim=0)
def stitch(self, blend_frames, video1=None, video2=None, video3=None, video4=None, video5=None, video6=None, video7=None, video8=None):
input_videos = [video1, video2, video3, video4, video5, video6, video7, video8]
video_batches = [v for v in input_videos if v is not None]
if len(video_batches) < 2:
raise ValueError("VideoStitch requires at least 2 connected video inputs.")
output_frames = []
for i in range(len(video_batches) - 1):
batch_a = video_batches[i]
batch_b = video_batches[i + 1]
if batch_a.shape[0] < blend_frames or batch_b.shape[0] < blend_frames:
raise ValueError(f"Each video batch must have at least {blend_frames} frames.")
stable_a = batch_a[:-blend_frames]
stable_b = batch_b[blend_frames:]
transition = self.linear_blend(batch_a, batch_b, blend_frames)
if i == 0:
output_frames.append(stable_a)
output_frames.append(transition)
output_frames.append(stable_b if i == len(video_batches) - 2 else batch_b[blend_frames:-blend_frames])
final_video = torch.cat(output_frames, dim=0)
return (final_video,)
class FunPackContinueVideo:
CATEGORY = "FunPack"
RETURN_TYPES = ("IMAGE",)
RETURN_NAMES = ("CONTINUED",)
FUNCTION = "continue_video"
INPUT_TYPES = lambda: {
"required": {
"images": ("IMAGE",),
"frame_count": ("INT", {"default": 1, "min": 1, "max": 9999}),
}
}
def continue_video(self, images, frame_count):
total_frames = images.shape[0]
if frame_count > total_frames:
raise ValueError(f"Cannot extract {frame_count} frames from video with only {total_frames} frames.")
continued = images[-frame_count:]
return (continued,)
class FunPackStoryMemKeyframeExtractor:
"""
Extracts keyframes from video frames using:
1. HPSv3 for quality assessment (optional)
2. CLIP Vision for frame similarity
3. Adaptive threshold to limit keyframe count
"""
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"frames": ("IMAGE",), # ComfyUI IMAGE format [B, H, W, C]
"clip_vision": (folder_paths.get_filename_list("clip_vision"),),
"max_keyframes": ("INT", {
"default": 3,
"min": 1,
"max": 20,
"step": 1,
"tooltip": "Maximum number of keyframes to extract"
}),
"similarity_threshold": ("FLOAT", {
"default": 0.9,
"min": 0.0,
"max": 1.0,
"step": 0.01,
"tooltip": "CLIP similarity threshold (lower = more keyframes)"
}),
"use_quality_filter": ("BOOLEAN", {
"default": False,
"tooltip": "Use HPSv3 to filter low-quality frames (requires hpsv3 package)"
}),
"quality_threshold": ("FLOAT", {
"default": 3.0,
"min": 0.0,
"max": 10.0,
"step": 0.1,
"tooltip": "HPSv3 quality threshold (higher = stricter)"
}),
},
"optional": {
"memory_frames": ("IMAGE", {
"tooltip": "Previous keyframes to compare against (avoid duplicates)"
}),
}
}
RETURN_TYPES = ("IMAGE", "INT",)
RETURN_NAMES = ("keyframes", "keyframe_count",)
FUNCTION = "extract_keyframes"
CATEGORY = "FunPack"
DESCRIPTION = "Extract keyframes using CLIP similarity + HPSv3 quality (StoryMem algorithm)"
def __init__(self):
self.quality_model = None
def load_clip_model(self, clip_vision_name):
"""Load CLIP Vision model from ComfyUI models/clip_vision folder"""
clip_path = folder_paths.get_full_path("clip_vision", clip_vision_name)
clip_vision = comfy.clip_vision.load(clip_path)
return clip_vision
def load_quality_model(self):
"""Load HPSv3 quality assessment model"""
if self.quality_model is not None:
return
try:
from hpsv3 import HPSv3RewardInferencer
device = "cuda" if torch.cuda.is_available() else "cpu"
self.quality_model = HPSv3RewardInferencer(device=device)
except ImportError:
print("WARNING: HPSv3 not installed. Install with: pip install hpsv3")
print("Quality filtering will be disabled.")
self.quality_model = None
def smart_resize(self, height: int, width: int) -> tuple:
"""Resize frame to efficient size for processing"""
factor = IMAGE_FACTOR
min_pixels = VIDEO_MIN_PIXELS
max_pixels = 256 * IMAGE_FACTOR * IMAGE_FACTOR
h_bar = max(factor, round(height / factor) * factor)
w_bar = max(factor, round(width / factor) * factor)
if h_bar * w_bar > max_pixels:
beta = math.sqrt((height * width) / max_pixels)
h_bar = math.floor(height / beta / factor) * factor
w_bar = math.floor(width / beta / factor) * factor
elif h_bar * w_bar < min_pixels:
beta = math.sqrt(min_pixels / (height * width))
h_bar = math.ceil(height * beta / factor) * factor
w_bar = math.ceil(width * beta / factor) * factor
return max(h_bar, factor), max(w_bar, factor)
def clip_preprocess(self, frame_chw: torch.Tensor, clip_vision) -> torch.Tensor:
"""Preprocess frame for CLIP Vision model"""
# ComfyUI CLIP Vision expects [B, H, W, C] format in range [0, 1]
# Convert from [C, H, W] to [1, H, W, C]
frame = frame_chw.permute(1, 2, 0).unsqueeze(0)
# Ensure [0, 1] range
if not torch.is_floating_point(frame):
frame = frame.float()
if frame.max() > 1.5:
frame = frame / 255.0
frame = frame.clamp(0.0, 1.0)
return frame
@torch.no_grad()
def get_clip_similarity(self, frame1: torch.Tensor, frame2: torch.Tensor, clip_vision) -> float:
# Preprocess frames to [1, H, W, C] format
x1 = self.clip_preprocess(frame1, clip_vision)
x2 = self.clip_preprocess(frame2, clip_vision)
# Get CLIP Vision embeddings
z1_raw = clip_vision.encode_image(x1)
z2_raw = clip_vision.encode_image(x2)
# Extract the actual embedding tensor from various possible return formats
def extract_embedding(output):
# Case 1: Direct tensor (older/basic models)
if isinstance(output, torch.Tensor):
return output
# Case 2: ComfyUI's custom Output wrapper (common with projection models)
if isinstance(output, comfy.clip_vision.Output): # Import at top if needed: import comfy.clip_vision
if hasattr(output, 'image_embeds'):
return output.image_embeds
elif hasattr(output, 'pooled_output'):
return output.pooled_output
# Fallback: treat like dict
try:
return output['image_embeds']
except:
pass
# Case 3: Dictionary (some models)
if isinstance(output, dict):
if 'image_embeds' in output:
return output['image_embeds']
if 'pooled_output' in output:
return output['pooled_output']
if 'last_hidden_state' in output:
return output['last_hidden_state'][:, 0] # CLS token if sequence
# Fallback: first tensor value
for v in output.values():
if isinstance(v, torch.Tensor) and v.ndim >= 2:
return v
# Case 4: Tuple (rare here, but safe)
if isinstance(output, (tuple, list)) and len(output) == 1:
return extract_embedding(output[0])
raise TypeError(f"Unexpected output from encode_image: {type(output)}. "
"Supported: tensor, dict, or comfy.clip_vision.Output with 'image_embeds'.")
z1 = extract_embedding(z1_raw)
z2 = extract_embedding(z2_raw)
# Final check
if not (isinstance(z1, torch.Tensor) and isinstance(z2, torch.Tensor)):
raise RuntimeError(f"Failed to extract tensor embeddings: {type(z1)}, {type(z2)}")
# Normalize and compute cosine similarity
z1 = F.normalize(z1, dim=-1)
z2 = F.normalize(z2, dim=-1)
similarity = (z1 * z2).sum(dim=-1).item()
return similarity
def is_low_quality(self, frame: torch.Tensor, threshold: float) -> bool:
"""Check if frame quality is below threshold using HPSv3"""
if self.quality_model is None:
return False # Skip quality check if model not available
# Convert to PIL Image
frame_np = frame.permute(1, 2, 0).cpu().numpy()
frame_np = (frame_np * 255).astype(np.uint8).clip(0, 255)
pil_image = Image.fromarray(frame_np)
# Get quality score
try:
rewards = self.quality_model.reward(image_paths=[pil_image], prompts=[""])
score = rewards[0][0].item()
return score < threshold
except Exception as e:
print(f"Quality check failed: {e}")
return False
def extract_keyframe_indices(self, frames: torch.Tensor, threshold: float,
quality_threshold: float, use_quality: bool, clip_vision) -> list:
"""
Extract keyframe indices using CLIP similarity and quality filtering
Args:
frames: [N, C, H, W] tensor
threshold: CLIP similarity threshold
quality_threshold: HPSv3 quality threshold
use_quality: Whether to use quality filtering
clip_vision: ComfyUI CLIP Vision model
Returns:
List of keyframe indices
"""
num_frames, _, height, width = frames.shape
# Resize frames for efficient processing
resized_h, resized_w = self.smart_resize(height, width)
resized_frames = F.interpolate(
frames,
size=(resized_h, resized_w),
mode="bilinear",
align_corners=False
).float()
# Load quality model if needed
if use_quality:
self.load_quality_model()
# Find first high-quality frame
first_idx = 0
if use_quality and self.quality_model is not None:
while first_idx < num_frames:
if not self.is_low_quality(resized_frames[first_idx], quality_threshold):
break
first_idx += 1
if first_idx >= num_frames:
return [] # No high-quality frames found
# Initialize keyframes
keyframe_indices = [first_idx]
last_keyframe = resized_frames[first_idx]
# Iterate through remaining frames
pbar = ProgressBar(num_frames - first_idx - 1)
for i in range(first_idx + 1, num_frames):
current_frame = resized_frames[i]
# Calculate similarity with last keyframe
similarity = self.get_clip_similarity(last_keyframe, current_frame, clip_vision)
# Check if frame is different enough and high quality
is_different = similarity < threshold
is_quality = True
if use_quality and self.quality_model is not None:
is_quality = not self.is_low_quality(current_frame, quality_threshold)
if is_different and is_quality:
keyframe_indices.append(i)
last_keyframe = current_frame
pbar.update(1)
return keyframe_indices
def check_memory_duplicates(self, keyframes: torch.Tensor,
memory_frames: torch.Tensor,
clip_vision,
threshold: float = 0.9) -> list:
"""
Filter out keyframes that are too similar to memory frames
Returns:
List of boolean flags (True = keep, False = duplicate)
"""
keep_flags = []
for keyframe in keyframes:
is_duplicate = False
for memory_frame in memory_frames:
similarity = self.get_clip_similarity(keyframe, memory_frame, clip_vision)
if similarity > threshold:
is_duplicate = True
break
keep_flags.append(not is_duplicate)
return keep_flags
def extract_keyframes(self, frames, clip_vision, max_keyframes, similarity_threshold,
use_quality_filter, quality_threshold, memory_frames=None):
"""
Main extraction function
Args:
frames: ComfyUI IMAGE format [B, H, W, C] in range [0, 1]
clip_vision: CLIP Vision model name from dropdown
max_keyframes: Maximum number of keyframes
similarity_threshold: Initial CLIP similarity threshold
use_quality_filter: Whether to use HPSv3 filtering
quality_threshold: HPSv3 threshold
memory_frames: Optional previous keyframes to avoid duplicates
Returns:
(keyframes, keyframe_count)
"""
# Load CLIP Vision model from ComfyUI models folder
clip_vision_model = self.load_clip_model(clip_vision)
# Convert ComfyUI format [B, H, W, C] to PyTorch [B, C, H, W]
frames_tensor = frames.permute(0, 3, 1, 2).contiguous()
# Adaptive threshold loop
threshold = similarity_threshold
while True:
keyframe_indices = self.extract_keyframe_indices(
frames_tensor,
threshold,
quality_threshold,
use_quality_filter,
clip_vision_model
)
# Check if we have too many keyframes
if len(keyframe_indices) <= max_keyframes:
break
# Increase threshold to get fewer keyframes
threshold -= ADAPTIVE_ALPHA
# Safety check
if threshold < 0.5:
# Take first N keyframes
keyframe_indices = keyframe_indices[:max_keyframes]
break
print(f"Extracted {len(keyframe_indices)} keyframes at threshold {threshold:.3f}")
# Extract keyframes
if len(keyframe_indices) == 0:
# Return first frame as fallback
keyframes_out = frames[:1]
return (keyframes_out, 1)
keyframes_tensor = frames_tensor[keyframe_indices]
# Check against memory frames to avoid duplicates
if memory_frames is not None:
memory_tensor = memory_frames.permute(0, 3, 1, 2).contiguous()
keep_flags = self.check_memory_duplicates(
keyframes_tensor,
memory_tensor,
clip_vision_model,
threshold=MIN_FRAME_SIMILARITY
)
# Filter keyframes
kept_indices = [i for i, keep in enumerate(keep_flags) if keep]
if len(kept_indices) > 0:
keyframes_tensor = keyframes_tensor[kept_indices]
else:
# Keep at least one keyframe
keyframes_tensor = keyframes_tensor[:1]
# Convert back to ComfyUI format [B, H, W, C]
keyframes_out = keyframes_tensor.permute(0, 2, 3, 1).contiguous()
return (keyframes_out, keyframes_out.shape[0])
class FunPackStoryMemLastFrameExtractor:
"""Extract last frame and last N frames for MI2V/MM2V continuity"""
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"frames": ("IMAGE",),
"n_frames": ("INT", {
"default": 5,
"min": 1,
"max": 20,
"step": 1,
"tooltip": "Number of frames to extract from end (for MM2V)"
}),
}
}
RETURN_TYPES = ("IMAGE", "IMAGE",)
RETURN_NAMES = ("last_frame", "motion_frames",)
FUNCTION = "extract"
CATEGORY = "FunPack"
DESCRIPTION = "Extract last frame and last N frames for shot continuity (MI2V/MM2V)"
def extract(self, frames, n_frames):
"""
Extract last frame and last N frames
Returns:
(last_frame [1, H, W, C], motion_frames [N, H, W, C])
"""
last_frame = frames[-1:]
motion_frames = frames[-n_frames:]
return (last_frame, motion_frames)
import os
import json
class FunPackCreativeTemplate:
@classmethod
def INPUT_TYPES(s):
# Path to templates.json in the same directory as this script
template_file = os.path.join(os.path.dirname(__file__), "templates.json")
templates = {}
if os.path.exists(template_file):
with open(template_file, 'r') as f:
try:
templates = json.load(f)
except json.JSONDecodeError:
templates = {}
template_names = sorted(list(templates.keys())) + ["Custom"]
default_template = template_names[0] if template_names else "Custom"
return {
"required": {
"template_name": (template_names, {"default": default_template}),
"template_text": ("STRING", {"multiline": True, "default": ""}),
"replacements": ("STRING", {"multiline": True, "default": ""}),
},
"optional": {
"save_name": ("STRING", {"default": ""}),
}
}
RETURN_TYPES = ("STRING",)
FUNCTION = "replace"
CATEGORY = "FunPack/Text"
DESCRIPTION = "Select or create text templates, replace placeholders, and output the result."
def replace(self, template_name, template_text, replacements, save_name=""):
# Load templates
template_file = os.path.join(os.path.dirname(__file__), "templates.json")
templates = {}
if os.path.exists(template_file):
with open(template_file, 'r') as f:
try:
templates = json.load(f)
except json.JSONDecodeError:
templates = {}
# Get the template string
if template_name == "Custom":
if not template_text.strip():
return ("",) # Empty if no custom text provided
template_str = template_text
else:
template_str = templates.get(template_name, "")
# Parse replacements (format: KEY: value per line)
replace_dict = {}
for line in replacements.splitlines():
if ':' in line:
key, val = line.split(':', 1)
replace_dict[key.strip()] = val.strip()
# Perform replacements
for key, val in replace_dict.items():
template_str = template_str.replace(f"[{key}]", val)
# Save new template if save_name provided and using Custom
if save_name and template_name == "Custom" and template_text.strip():
templates[save_name] = template_text
# Create directories if needed (though unlikely)
os.makedirs(os.path.dirname(template_file), exist_ok=True)
with open(template_file, 'w') as f:
json.dump(templates, f, indent=4)
return (template_str,)
# Update NODE_CLASS_MAPPINGS and NODE_DISPLAY_NAME_MAPPINGS
NODE_CLASS_MAPPINGS = {
"FunPackStoryMemJSONConverter": FunPackStoryMemJSONConverter,
"FunPackStoryMemKeyframeExtractor": FunPackStoryMemKeyframeExtractor,
"FunPackStoryMemLastFrameExtractor": FunPackStoryMemLastFrameExtractor,
"FunPackImg2LatentInterpolation": FunPackImg2LatentInterpolation,
"FunPackPromptEnhancer": FunPackPromptEnhancer,
"FunPackStoryWriter": FunPackStoryWriter,
"FunPackVideoStitch": FunPackVideoStitch,
"FunPackContinueVideo": FunPackContinueVideo,
"FunPackCreativeTemplate": FunPackCreativeTemplate,
"FunPackLorebookEnhancer": FunPackLorebookEnhancer,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"FunPackStoryMemJSONConverter": "FunPack StoryMem JSON Converter",
"FunPackStoryMemKeyframeExtractor": "FunPack StoryMem Keyframe Extractor",
"FunPackStoryMemLastFrameExtractor": "FunPack StoryMem Last Frame Extractor",
"FunPackImg2LatentInterpolation": "FunPack Img2Latent Interpolation",
"FunPackPromptEnhancer": "FunPack Prompt Enhancer (Standalone)",
"FunPackStoryWriter": "FunPack Story Writer",
"FunPackVideoStitch": "FunPack Video Stitch",
"FunPackContinueVideo": "FunPack Continue Video",
"FunPackCreativeTemplate": "FunPack Creative Template",
"FunPackLorebookEnhancer": "FunPack Lorebook Enhancer"
}