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olivv-cs-ComfyUI-FunPack/funpack.py
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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
from typing import List, Tuple, Optional
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
import base64
from hashlib import md5
import time
def tensor_to_serializable(t: torch.Tensor) -> dict:
if not isinstance(t, torch.Tensor):
raise TypeError(f"Expected torch.Tensor, got {type(t)}")
arr = t.detach().cpu().numpy()
return {
"data": base64.b64encode(arr.tobytes()).decode("utf-8"),
"shape": list(arr.shape),
"dtype": str(arr.dtype)
}
def serializable_to_tensor(d: dict) -> torch.Tensor:
arr = np.frombuffer(base64.b64decode(d["data"]), dtype=d["dtype"]).reshape(d["shape"])
tensor = torch.from_numpy(arr).to(dtype=torch.float32)
if torch.cuda.is_available():
tensor = tensor.cuda()
return tensor
class FunPackGemmaEmbeddingRefiner:
_tokenizer = None
@classmethod
def _get_tokenizer(cls):
if cls._tokenizer is None:
try:
from transformers import AutoTokenizer
cls._tokenizer = AutoTokenizer.from_pretrained(
"DreamFast/gemma-3-12b-it-heretic-v2",
trust_remote_code=True,
use_fast=True
)
except Exception as e:
print(f"[FunPackGemmaEmbeddingRefiner] Tokenizer load failed: {e}")
cls._tokenizer = None
return cls._tokenizer
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"positive_conditioning": ("CONDITIONING",),
"rating": ("INT", {
"default": 5,
"min": 1,
"max": 10,
"step": 1,
"display": "slider",
"label": "Rating (1=absolutely horrific, 10=masterpiece)"
}),
"refinement_key": ("STRING", {"default": "my_style_v1", "multiline": False}),
},
"optional": {
"positive_prompt": ("STRING", {
"multiline": True,
"default": "",
"placeholder": "Positive prompt"
}),
"negative_prompt": ("STRING", {
"multiline": True,
"default": "",
"placeholder": "Negative prompt (optional)"
}),
"negative_conditioning": ("CONDITIONING",),
"latent": ("LATENT",),
"reset_session": ("BOOLEAN", {"default": False, "label": "Reset Session (clears ALL history)"}),
"unlimited_history": ("BOOLEAN", {
"default": False,
"label": "Unlimited History (never prunes)"
}),
}
}
RETURN_TYPES = ("CONDITIONING", "CONDITIONING", "LATENT", "STRING")
RETURN_NAMES = ("modified_positive_conditioning", "modified_negative_conditioning", "modified_latent", "status")
FUNCTION = "refine"
CATEGORY = "FunPack/Refinement"
@classmethod
def IS_CHANGED(cls, **kwargs):
return float("nan")
def _get_top_tokens(self, token_importance, tokenizer, top_k=10):
if not token_importance or not tokenizer:
return "N/A"
sorted_tokens = sorted(token_importance.items(), key=lambda x: x[1], reverse=True)[:top_k]
top_list = []
for tid_str, score in sorted_tokens:
try:
token_text = tokenizer.decode([int(tid_str)], skip_special_tokens=True).strip()
if token_text:
top_list.append(f"{token_text}({score:.2f})")
except:
top_list.append(f"ID{tid_str}({score:.2f})")
return ", ".join(top_list) if top_list else "None"
def refine(self, positive_conditioning, rating: int, refinement_key: str,
positive_prompt: str = "", negative_prompt: str = "",
negative_conditioning=None, latent=None,
reset_session: bool = False, unlimited_history: bool = False):
base_dir = os.path.dirname(os.path.abspath(__file__))
refinements_dir = os.path.join(base_dir, "refinements")
os.makedirs(refinements_dir, exist_ok=True)
safe_key = md5(refinement_key.encode("utf-8")).hexdigest()
json_file = os.path.join(refinements_dir, f"refine_{safe_key}.json")
if not positive_conditioning or not isinstance(positive_conditioning, list) or len(positive_conditioning) == 0:
return (positive_conditioning, negative_conditioning, latent, "ERROR: Empty positive CONDITIONING input")
item = positive_conditioning[0]
if isinstance(item, (list, tuple)) and len(item) >= 2:
raw_positive = item[0]
positive_meta = item[1] if isinstance(item[1], dict) else {"pooled_output": None}
else:
raw_positive = item if isinstance(item, torch.Tensor) else None
positive_meta = {"pooled_output": None}
if not isinstance(raw_positive, torch.Tensor):
return (positive_conditioning, negative_conditioning, latent, "ERROR: No positive embedding tensor found")
prompt_key = positive_prompt
if negative_prompt:
prompt_key += f" |||NEG||| {negative_prompt}"
if reset_session or not os.path.exists(json_file):
data = {
"refinement_key": refinement_key,
"global_adaptive": {
"token_importance": {},
"infusion_tokens": {},
"token_library": {},
"exploration_base": 0.08,
"momentum": None,
"avg_reward_ema": 0.0,
"good_ratio": 0.0,
"dynamic_sim_threshold": 0.82
},
"prompt_histories": {
prompt_key: {
"reference_embeds": tensor_to_serializable(raw_positive),
"history": [],
"last_rating": rating
}
},
"last_prompt_key": prompt_key
}
with open(json_file, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2)
return (positive_conditioning, negative_conditioning, latent, "✓ New session started – Reference saved")
with open(json_file, "r", encoding="utf-8") as f:
data = json.load(f)
global_adaptive = data["global_adaptive"]
prompt_histories = data.get("prompt_histories", {})
if prompt_key in prompt_histories:
active = prompt_histories[prompt_key]
is_new_prompt = False
else:
is_new_prompt = True
active = {
"reference_embeds": tensor_to_serializable(raw_positive),
"history": [],
"last_rating": rating
}
prompt_histories[prompt_key] = active
old_reference = serializable_to_tensor(active["reference_embeds"])
device = old_reference.device
cur_positive = raw_positive.to(device) if raw_positive.device != device else raw_positive
tokenizer = self._get_tokenizer()
cur_token_ids = tokenizer.encode(positive_prompt, add_special_tokens=True) if tokenizer and positive_prompt else []
if is_new_prompt and tokenizer and cur_token_ids:
current_set = set(cur_token_ids)
token_importance = global_adaptive["token_importance"]
for other_key, other in prompt_histories.items():
if other_key == prompt_key:
continue
for entry in other.get("history", []):
if "prompt" not in entry or not entry["prompt"]:
continue
try:
old_tokens = tokenizer.encode(entry["prompt"], add_special_tokens=True)[:60]
matching = current_set & set(old_tokens)
r = entry.get("rating", 5)
adj = 1.25 if r >= 8 else 0.75 if r <= 3 else None
if adj is not None:
for tid in matching:
tid_str = str(tid)
if tid_str in token_importance:
token_importance[tid_str] = max(0.3, min(2.5, token_importance[tid_str] * adj))
except:
pass
active["reference_embeds"] = tensor_to_serializable(cur_positive)
reference = cur_positive.clone()
# ====================== TOKEN LIBRARY UPDATE ======================
token_library = global_adaptive.setdefault("token_library", {})
if tokenizer and cur_token_ids:
for tid in cur_token_ids:
tid_str = str(tid)
if tid_str not in token_library:
token_library[tid_str] = {
"fqc": 0,
"unique_prompts": 0,
"high_rated_count": 0,
"low_rated_count": 0,
"good_pairs": {}
}
lib_entry = token_library[tid_str]
lib_entry["fqc"] += 1
if is_new_prompt:
lib_entry["unique_prompts"] += 1
if rating >= 8:
for i, tid1 in enumerate(cur_token_ids):
tid1_str = str(tid1)
for tid2 in cur_token_ids[i+1:]:
tid2_str = str(tid2)
if tid1_str in token_library and tid2_str in token_library:
if tid2_str not in token_library[tid1_str]["good_pairs"]:
token_library[tid1_str]["good_pairs"][tid2_str] = 0
if tid1_str not in token_library[tid2_str]["good_pairs"]:
token_library[tid2_str]["good_pairs"][tid1_str] = 0
token_library[tid1_str]["good_pairs"][tid2_str] += 1
token_library[tid2_str]["good_pairs"][tid1_str] += 1
if tid1_str in token_library:
token_library[tid1_str]["high_rated_count"] += 1
elif rating <= 4:
for tid in cur_token_ids:
tid_str = str(tid)
if tid_str in token_library:
token_library[tid_str]["low_rated_count"] += 1
for tid_str, entry in token_library.items():
total_rated = entry["high_rated_count"] + entry["low_rated_count"]
if total_rated == 0:
entry["is_general"] = False
entry["is_specific"] = False
entry["infusable"] = False
continue
appears_in_many = entry["unique_prompts"] >= 5
balanced = entry["high_rated_count"] > 0 and entry["low_rated_count"] > 0
mostly_high = entry["high_rated_count"] > entry["low_rated_count"] * 2
entry["is_general"] = appears_in_many and balanced
entry["is_specific"] = not entry["is_general"] and mostly_high and entry["unique_prompts"] <= 8
entry["infusable"] = entry["is_general"] or (entry["is_specific"] and entry["high_rated_count"] > 15)
# ====================== CORE REFINEMENT ======================
ref_mean = old_reference.mean(dim=1)
cur_mean = cur_positive.mean(dim=1)
similarity = torch.nn.functional.cosine_similarity(ref_mean, cur_mean, dim=-1).mean().item()
reward = (rating - 5.5) / 4.5
last_rating = active.get("last_rating", 5)
last_reward = (last_rating - 5.5) / 4.5
expl = global_adaptive["exploration_base"]
momentum = global_adaptive.get("momentum")
avg_reward_ema = global_adaptive["avg_reward_ema"]
good_ratio = global_adaptive["good_ratio"]
sim_threshold = global_adaptive["dynamic_sim_threshold"]
token_importance = global_adaptive["token_importance"]
infusion_tokens = global_adaptive["infusion_tokens"]
avg_reward_ema = 0.85 * avg_reward_ema + 0.15 * reward
if momentum is None or not isinstance(momentum, dict):
momentum = torch.zeros_like(reference)
else:
momentum = serializable_to_tensor(momentum)
if list(momentum.shape) != list(reference.shape):
momentum = torch.zeros_like(reference)
new_token_mask = None
infusion_active = False
if tokenizer and positive_prompt:
try:
cur_token_ids = tokenizer.encode(positive_prompt, add_special_tokens=True)
embed_seq_len = cur_positive.shape[1] if cur_positive.dim() == 3 else cur_positive.shape[0] if cur_positive.dim() == 2 else 1
new_token_mask = torch.ones(embed_seq_len, device=device)
prev_token_ids = tokenizer.encode(active.get("last_positive_prompt", ""), add_special_tokens=True) if "last_positive_prompt" in active else []
compare_len = min(len(cur_token_ids), len(prev_token_ids), embed_seq_len)
for i in range(compare_len):
if cur_token_ids[i] != prev_token_ids[i]:
new_token_mask[i] = 0.0
for tid in cur_token_ids[:embed_seq_len]:
tid_str = str(tid)
if tid_str not in token_importance:
token_importance[tid_str] = 1.0
is_new = tid not in prev_token_ids
update_strength = 1.8 if is_new else 1.0
token_importance[tid_str] = max(0.3, min(2.5,
token_importance[tid_str] + reward * 0.12 * update_strength))
if random.random() < 0.18 and token_library:
for tid in cur_token_ids[:embed_seq_len]:
tid_str = str(tid)
if tid_str not in token_library or not token_library[tid_str].get("infusable", False):
continue
entry = token_library[tid_str]
if not entry.get("good_pairs"):
continue
pair_scores = []
for ct in cur_token_ids[:embed_seq_len]:
ct_str = str(ct)
if ct_str in entry["good_pairs"]:
pair_scores.append(entry["good_pairs"][ct_str])
if pair_scores:
avg_pair = sum(pair_scores) / len(pair_scores)
if avg_pair > 1.2 or entry.get("is_general", False):
if tid_str not in infusion_tokens:
infusion_tokens[tid_str] = 0.0
infusion_tokens[tid_str] = min(3.0, infusion_tokens[tid_str] + 0.6)
infusion_active = True
except Exception as e:
print(f"[FunPackGemmaEmbeddingRefiner] Token comparison failed: {e}")
new_token_mask = None
history = active.get("history", [])
is_close = (not is_new_prompt) and (similarity >= sim_threshold)
if is_close and history:
last_entry = history[-1]
mod_data = last_entry.get("modified_embeds")
if mod_data is None:
prev_modified = torch.zeros_like(old_reference)
else:
prev_modified = serializable_to_tensor(mod_data)
if list(prev_modified.shape) != list(old_reference.shape):
prev_modified = torch.zeros_like(old_reference)
prev_delta = prev_modified - old_reference
multiplier = max(0.05, 1.0 + reward * 1.45)
if rating == last_rating and rating >= 8:
multiplier += 0.35
noise = torch.randn_like(old_reference) * (expl * (1.0 - avg_reward_ema * 0.7))
new_delta = (prev_delta * multiplier) + noise + (momentum * 0.6)
else:
good_deltas = []
for entry in history:
if entry.get("rating", 0) >= 7:
mod_data = entry.get("modified_embeds")
if mod_data is None:
continue
mod = serializable_to_tensor(mod_data)
if list(mod.shape) == list(old_reference.shape):
good_deltas.append(mod - old_reference)
if good_deltas:
new_delta = torch.stack(good_deltas).mean(dim=0) * (0.7 + reward * 0.4)
else:
if is_new_prompt and isinstance(momentum, torch.Tensor) and list(momentum.shape) == list(reference.shape):
seed_strength = min(0.3, abs(avg_reward_ema) * 0.4)
new_delta = momentum * seed_strength + torch.randn_like(reference) * expl * 0.3
else:
new_delta = torch.randn_like(reference) * expl * 0.45
if token_importance and cur_positive.dim() > 1:
seq_len = cur_positive.shape[1] if cur_positive.dim() == 3 else cur_positive.shape[0]
importance_tensor = torch.ones(seq_len, device=device)
for i, tid in enumerate(cur_token_ids[:seq_len]):
tid_str = str(tid)
if tid_str in token_importance:
importance_tensor[i] = token_importance[tid_str]
new_delta = new_delta * importance_tensor.unsqueeze(-1)
if new_token_mask is not None:
boost_factor = 1.0 + 1.8 * (1.0 - new_token_mask).unsqueeze(-1)
new_delta = new_delta * boost_factor
new_positive = reference + new_delta
new_positive = torch.clamp(new_positive, min=-60.0, max=60.0)
norm_factor = reference.norm(dim=-1, keepdim=True) + 1e-8
new_positive = new_positive / (new_positive.norm(dim=-1, keepdim=True) + 1e-8) * norm_factor
new_negative = None
negative_meta = {"pooled_output": None}
if negative_conditioning is not None:
neg_item = negative_conditioning[0]
if isinstance(neg_item, (list, tuple)) and len(neg_item) >= 2:
raw_negative = neg_item[0]
negative_meta = neg_item[1] if isinstance(neg_item[1], dict) else {"pooled_output": None}
else:
raw_negative = neg_item if isinstance(neg_item, torch.Tensor) else None
if isinstance(raw_negative, torch.Tensor):
neg_strength = 0.15 if rating <= 4 else 0.05
neg_delta = torch.randn_like(raw_negative) * neg_strength * (5.5 - rating) / 4.5
new_negative = raw_negative + neg_delta
new_negative = torch.clamp(new_negative, min=-60.0, max=60.0)
norm_factor_neg = raw_negative.norm(dim=-1, keepdim=True) + 1e-8
new_negative = new_negative / (new_negative.norm(dim=-1, keepdim=True) + 1e-8) * norm_factor_neg
momentum = 0.75 * momentum + 0.25 * (new_delta * reward)
if avg_reward_ema > 0.3:
sim_threshold = max(0.75, sim_threshold - 0.002)
if rating >= 8:
expl = max(0.015, expl * 0.96)
good_ratio = 0.9 * good_ratio + 0.1 * 1.0
else:
expl = min(0.12, expl * 1.08)
good_ratio = 0.9 * good_ratio + 0.1 * 0.0
global_adaptive.update({
"exploration_base": expl,
"momentum": tensor_to_serializable(momentum),
"avg_reward_ema": avg_reward_ema,
"good_ratio": good_ratio,
"dynamic_sim_threshold": sim_threshold,
"token_importance": token_importance,
"infusion_tokens": infusion_tokens
})
history_entry = {
"iteration": len(history) + 1,
"rating": rating,
"reward": round(reward, 3),
"modified_embeds": tensor_to_serializable(new_positive),
"similarity": round(similarity, 4),
"prompt": positive_prompt[:180]
}
if latent is not None and "samples" in latent:
history_entry["latent_samples"] = tensor_to_serializable(latent["samples"])
history.append(history_entry)
if not unlimited_history and len(history) > 200:
sorted_hist = sorted(history, key=lambda x: x.get("rating", 0), reverse=True)
top = sorted_hist[:40]
recent = history[-120:]
seen = {e["iteration"] for e in top}
history = top + [e for e in recent if e["iteration"] not in seen]
active["history"] = history
active["last_rating"] = rating
active["last_positive_prompt"] = positive_prompt
data["last_prompt_key"] = prompt_key
data["prompt_histories"] = prompt_histories
data["global_adaptive"] = global_adaptive
with open(json_file, "w", encoding="utf-8") as f:
json.dump(data, f, indent=2)
# ====================== ENHANCED STATUS WITH INFUSION TOKENS ======================
iter_num = len(history)
total_iterations = sum(len(p.get("history", [])) for p in prompt_histories.values())
total_history_count = sum(len(p.get("history", [])) for p in prompt_histories.values())
unique_prompts = len(prompt_histories)
infusion_count = len([v for v in infusion_tokens.values() if v > 0.5])
trend = "↑" if reward > last_reward else "↓" if reward < last_reward else "→"
health = "🚀 Strong convergence" if avg_reward_ema > 0.6 else "✅ Learning well" if avg_reward_ema > 0.3 else "⚠️ Still exploring" if avg_reward_ema > -0.2 else "🔄 Heavy correction"
current_top = self._get_top_tokens(token_importance, tokenizer, 10)
top_infusion = self._get_top_tokens(infusion_tokens, tokenizer, 8)
lib_size = len(token_library)
gen_count = sum(1 for e in token_library.values() if e.get("is_general", False))
status = (f"Iter {iter_num} | Total iters {total_iterations} | "
f"History {total_history_count} | Unique prompts {unique_prompts} | "
f"Infusion tokens {infusion_count}\n"
f"Rating {rating}/10 {trend} | Sim {similarity:.3f} | Reward {reward:+.2f} | "
f"EMA {avg_reward_ema:+.2f} | Good ratio {good_ratio:.0%} | Expl {expl:.3f} | {health}\n"
f"Current focus: {current_top}\n"
f"Top infusion: {top_infusion}\n"
f"Library: {lib_size} tokens ({gen_count} general)")
if is_new_prompt:
status += "\n✓ New prompt pair → fresh history + cross-prompt token transfer applied"
if new_token_mask is not None and (1.0 - new_token_mask).sum() > 0:
status += "\nNew tokens boosted"
if infusion_active:
status += "\n🔀 Random token infusion active (positive only)"
if rating <= 4:
status += "\nLow rating: importance down-weighted + negative strengthened"
modified_positive = [(new_positive, positive_meta)]
modified_negative = [(new_negative, negative_meta)] if new_negative is not None else negative_conditioning
modified_latent = latent
return (modified_positive, modified_negative, modified_latent, status)
# 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 FunPackPromptCombiner:
@classmethod
def INPUT_TYPES(cls):
return {
"required": {
"main_prompt": ("STRING", {
"multiline": True,
"default": "masterpiece, best quality, detailed background"
}),
},
"optional": {
"prompt1": ("STRING", {"default": "", "multiline": True}),
"prompt2": ("STRING", {"default": "", "multiline": True}),
"prompt3": ("STRING", {"default": "", "multiline": True}),
"prompt4": ("STRING", {"default": "", "multiline": True}),
"prompt5": ("STRING", {"default": "", "multiline": True}),
}
}
RETURN_TYPES = ("STRING", "STRING", "STRING", "STRING", "STRING")
RETURN_NAMES = ("out1", "out2", "out3", "out4", "out5")
FUNCTION = "combine"
CATEGORY = "FunPack"
OUTPUT_NODE = False
def combine(self, main_prompt,
prompt1="", prompt2="", prompt3="", prompt4="", prompt5=""):
main = main_prompt.strip()
def merge(base, addon):
addon = addon.strip()
if not addon:
return base
if not base:
return addon
# You can change separator style here
#return f"{base}, {addon}" # ← comma style (most common in SD)
return f"{base}\n{addon}" # ← new line style
# return f"{base} | {addon}" # ← pipe style, etc.
results = []
for p in (prompt1, prompt2, prompt3, prompt4, prompt5):
combined = merge(main, p)
results.append(combined)
# Always return exactly 5 strings (even if some are just the main prompt)
return tuple(results)
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}),
"entry_delimiter": ("STRING", {"default": "", "multiline": True}),
"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)
is_constant = entry.get("constant", False)
if not is_constant:
keys = entry.get("keys", entry.get("key", [])) # Fixed: use "keys" (plural) first
if not self._match_keys(keys, 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
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, entry_delimiter=""):
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 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(
**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['input_ids'].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]."}),
"prompt1": ("STRING", {"multiline": False, "default": ""}),
"prompt2": ("STRING", {"multiline": False, "default": ""}),
"prompt3": ("STRING", {"multiline": False, "default": ""}),
"prompt4": ("STRING", {"multiline": False, "default": ""}),
"prompt5": ("STRING", {"multiline": False, "default": ""}),
"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}),
"min_p": ("FLOAT", {"min": 0.0, "max": 1.0, "step": 0.01, "default": 0.1}),
"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"],),
"vision_input": ("STRING", {"multiline": True, "default": "Put outputs of your VL model here to make the Story Writer aware of the starting image."}),
"sanity_check": ("BOOLEAN", {"default": True, "label": "Enable Sanity Check"}),
"sanity_check_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."
}),
"disable_continuity": ("BOOLEAN", {"default": False, "label": "Enable/disable continuity - if enabled, does not provide the history of previously generated sequences when generating new one."}),
"provide_current_id": ("BOOLEAN", {"default": True, "label": "If true, provides current sequence ID to the model even if continuity is disabled."}),
}
}
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, prompt1, prompt2, prompt3, prompt4, prompt5, story_system_prompt, sequence_system_prompt, model_path_type, model_path, llm_safetensors_file, prompt_count, top_p, top_k, min_p, temperature, max_new_tokens, repetition_penalty, mode, vision_input, sanity_check, sanity_check_system_prompt, disable_continuity, provide_current_id):
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, ignore_mismatched_sizes=True, 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", ignore_mismatched_sizes=True, 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
prompts = [""] * 5
prompts[0] = prompt1
prompts[1] = prompt2
prompts[2] = prompt3
prompts[3] = prompt4
prompts[4] = prompt5
recommended_loras = None
# ── 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(
**llm_tokens,
do_sample=True,
top_p=top_p,
top_k=top_k,
min_p=min_p,
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['input_ids'].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
if disable_continuity == True and provide_current_id == False:
messages = [
{"role": "system", "content": sequence_system_prompt},
{"role": "user", "content": user_prompt}
]
if prompts[seq_idx]:
messages.append({"role": "user", "content": f"""User's request for current scene only: {prompts[seq_idx]}"""})
elif disable_continuity == True and provide_current_id == True:
messages = [
{"role": "system", "content": sequence_system_prompt},
{"role": "user", "content": f"""Current request ID: {seq_idx+1}\nUser's instruction for all requests: {user_prompt}"""}
]
if prompts[seq_idx]:
messages.append({"role": "user", "content": f"""User's request for current scene only: {prompts[seq_idx]}"""})
else:
messages = [
{"role": "system", "content": sequence_system_prompt},
{"role": "user", "content": f"""Total amount of requests in this batch: {prompt_count}\nCurrently generating request ID {seq_idx+1} out of {prompt_count}\nRequests left in queue: {prompt_count - seq_idx - 1}\nUser's instruction for all requests: {user_prompt}"""},
{"role": "assistant", "content": f"""History:{chr(10).join([f"ID {i}: {text}" for i, text in enumerate(outputs[:seq_idx])]) if seq_idx > 0 else "No history available."}"""}
]
if prompts[seq_idx]:
messages.append({"role": "user", "content": f"""User's request for current scene only: {prompts[seq_idx]}"""})
if vision_input is not None:
messages.append({"role": "user", "content": f"""Reference image description (this is the starting image in the video batch): {vision_input}"""})
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 ID {seq_idx + 1}/{prompt_count}...")
with torch.no_grad():
generated_ids = llm_model.generate(
**llm_tokens,
do_sample=True,
top_p=top_p,
top_k=top_k,
min_p=min_p,
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['input_ids'].shape[1]:], skip_special_tokens=True).strip()
# Append generated sequence — this is what chains everything
messages.append({"role": "assistant", "content": seq_text})
if sanity_check == False:
print(f"[FunPackStoryWriter] ID {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" and disable_continuity == False:
sanity_messages = [
{"role": "system", "content": sanity_check_system_prompt},
{"role": "user", "content": f"""Original story: {story}\n
Rules: {story_system_prompt}\n
User's instruction: {user_prompt}\n
Previous response: {outputs[seq_idx] if seq_idx > 0 else "No history available."}\n
Response to validate and correct if rules were broken: {seq_text}"""}
]
elif mode == "Sequences from user prompt" and disable_continuity == False:
sanity_messages = [
{"role": "system", "content": sanity_check_system_prompt},
{"role": "user", "content": f"""User's instruction: {user_prompt}\n
Rules: {sequence_system_prompt}\n
Previous response: {outputs[seq_idx] if seq_idx > 0 else "No history available."}\n
Response to validate and correct if rules were broken: {seq_text}"""}
]
else:
sanity_messages = [
{"role": "system", "content": sanity_check_system_prompt},
{"role": "user", "content": f"""User's instruction: {user_prompt}
Rules: {sequence_system_prompt}
Response to validate and correct if rules were broken: {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 ID {seq_idx + 1}/{prompt_count}...")
with torch.no_grad():
generated_ids = llm_model.generate(
**llm_tokens,
do_sample=False,
top_p=top_p,
top_k=top_k,
min_p=min_p,
temperature=temperature,
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['input_ids'].shape[1]:], skip_special_tokens=True).strip()
print(f"[FunPackStoryWriter] ID {seq_idx + 1} (sanity check performed): {seq_text}...")
outputs[seq_idx] = 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)
# Update NODE_CLASS_MAPPINGS and NODE_DISPLAY_NAME_MAPPINGS
NODE_CLASS_MAPPINGS = {
"FunPackPromptCombiner": FunPackPromptCombiner,
"FunPackStoryMemKeyframeExtractor": FunPackStoryMemKeyframeExtractor,
"FunPackStoryMemLastFrameExtractor": FunPackStoryMemLastFrameExtractor,
"FunPackPromptEnhancer": FunPackPromptEnhancer,
"FunPackStoryWriter": FunPackStoryWriter,
"FunPackVideoStitch": FunPackVideoStitch,
"FunPackContinueVideo": FunPackContinueVideo,
"FunPackLorebookEnhancer": FunPackLorebookEnhancer,
"FunPackGemmaEmbeddingRefiner": FunPackGemmaEmbeddingRefiner,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"FunPackPromptCombiner": "FunPack Prompt Combiner",
"FunPackStoryMemKeyframeExtractor": "FunPack StoryMem Keyframe Extractor",
"FunPackStoryMemLastFrameExtractor": "FunPack StoryMem Last Frame Extractor",
"FunPackPromptEnhancer": "FunPack Prompt Enhancer (Standalone)",
"FunPackStoryWriter": "FunPack Story Writer",
"FunPackVideoStitch": "FunPack Video Stitch",
"FunPackContinueVideo": "FunPack Continue Video",
"FunPackLorebookEnhancer": "FunPack Lorebook Enhancer",
"FunPackGemmaEmbeddingRefiner": "FunPack Gemma Embedding Refiner (Self-Refinement)"
}