Files
Meisoftcoltd-comfyui-sequen…/loop.py
T
Meisoftcoltd 0d794fc10e fix: decouple timeline from frame padding to prevent EOF crashes
Replaced artificial safe limit in AutoLoopCalculatorWan (video.py) and
AutoLoopCalculatorLTX (loop.py) with actual physical source frame limit.
This prevents trigger nodes from falsely requesting frames past the EOF
which resulted in "RuntimeError: No frames generated".
2026-04-12 10:26:08 +00:00

308 lines
13 KiB
Python

import random
import time
import urllib.request
import json
import gc
import torch
import comfy.model_management as mm
from . import register_node
global_loop_index = 0
global_accumulated_frames = 0
global_source_frame_count = 1
global_select_every_nth = 1
global_server_port = 8188 # 💡 NUEVO: Única fuente de la verdad para el puerto
global_ltx_mode = False
@register_node
class SequentialLoopStart:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"reset_loop": ("BOOLEAN", {"default": False}),
"loop_idx": ("INT", {"default": 0, "min": 0, "max": 10000}),
"port": ("INT", {"default": 8188, "min": 1, "max": 65535}), # 💡 FAIL-FAST: Pedimos el puerto aquí
}
}
RETURN_TYPES = ("INT",)
RETURN_NAMES = ("current_loop_index",)
FUNCTION = "get_index"
CATEGORY = "🔁 Sequential Batcher/Loop"
@classmethod
def IS_CHANGED(cls, **kwargs):
return time.time()
def get_index(self, reset_loop, loop_idx, port):
global global_loop_index
global global_accumulated_frames
global global_server_port
global global_ltx_mode
print(f"\n{'='*50}")
print(f"🚀 [DEBUG] NODO: Loop Start (Motor Dinámico)")
# --- PRE-FLIGHT CHECK (FAIL-FAST) ---
print(f" -> 📡 Verificando conexión con ComfyUI en el puerto {port}...")
try:
# Ping ultrarrápido a la API. Si falla, colapsa en 0.1 segundos.
req = urllib.request.Request(f"http://127.0.0.1:{port}/system_stats")
urllib.request.urlopen(req, timeout=2)
global_server_port = port # Guardamos el puerto correcto para el Trigger
print(f" -> ✅ Conexión establecida. Puerto blindado.")
except Exception as e:
print(f" -> ❌ ERROR FATAL: No se pudo conectar al puerto {port}.")
raise ValueError(f"🚨 EL PUERTO {port} ES INCORRECTO O COMFYUI NO RESPONDE. "
f"Cambia el puerto en el nodo 'Loop Start' antes de procesar. (Error: {e})")
# ------------------------------------
is_reset = str(reset_loop).lower() in ['true', '1', 't', 'y']
if is_reset or loop_idx == 0:
global_loop_index = 0
global_accumulated_frames = 0
global_ltx_mode = False # 💡 REINICIO DE SEGURIDAD PARA LTX
print(" -> 🔄 Bucle y Acumulador reiniciados a 0.")
else:
global_loop_index = loop_idx
print(f" -> 📍 Índice actual de bucle: {global_loop_index}")
print(f"{'='*50}\n")
return (global_loop_index,)
@register_node
class AutoLoopCalculatorLTX:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"source_frame_count": ("INT", {"forceInput": True}),
"target_frames_per_loop": ("INT", {"default": 81, "min": 9, "max": 257, "step": 8}),
"select_every_nth": ("INT", {"default": 1, "min": 1, "max": 100}),
"current_loop_index": ("INT", {"forceInput": True}),
},
"optional": {
"safe_faces_list": ("FACE_CUTS", {"forceInput": True}),
}
}
RETURN_TYPES = ("INT", "INT", "INT")
RETURN_NAMES = ("chunk_frames", "skip_frames", "select_every_nth")
FUNCTION = "calculate"
CATEGORY = "🔁 Sequential Batcher/Loop"
def calculate(self, source_frame_count, target_frames_per_loop, select_every_nth, current_loop_index, safe_faces_list=None):
# --- Ajuste Proporcional LTX (Regla DiT 8n + 1) ---
import math
from . import loop
potential_effective_frames = source_frame_count // select_every_nth
if potential_effective_frames < 9:
safe_effective_frames = 9
else:
safe_effective_frames = ((potential_effective_frames + 6) // 8) * 8 + 1
# 🚀 FIX: Conservamos el límite FÍSICO real del vídeo para el timeline global
physical_source_frame_count = potential_effective_frames * select_every_nth
loop.global_source_frame_count = physical_source_frame_count
effective_padding = safe_effective_frames - potential_effective_frames
# Ajuste proporcional
estimated_loops = math.ceil(safe_effective_frames / target_frames_per_loop)
if estimated_loops > 0:
optimal_target = math.ceil(safe_effective_frames / estimated_loops)
adjusted_target = ((optimal_target - 1 + 7) // 8) * 8 + 1
target_frames_per_loop = adjusted_target
print(f" -> ⚖️ Ajuste Proporcional LTX: Target recalculado a {adjusted_target} frames por ciclo.")
print(f" -> 🎞️ Capacidad del video original: {potential_effective_frames} frames (Nth: {select_every_nth})")
if effective_padding > 0:
print(f" -> 🛡️ Ajuste VAE: Se pedirán {safe_effective_frames} frames (Acolchado técnico: Se rellenarán {effective_padding} frames)")
else:
print(f" -> ✅ Ajuste VAE: Perfecto. Regla 8n+1 detectada.")
print(f" -> 📊 Timeline final: 0 a {physical_source_frame_count} (Límite Físico Real)")
loop.global_select_every_nth = select_every_nth
global global_ltx_mode
global_ltx_mode = True
current_pos = loop.global_accumulated_frames
print(f"\n{'='*50}")
print(f"📊 [DEBUG] NODO: Auto Loop Calculator (LTX 2.3)")
print(f" -> Timeline físico ajustado a LTX: {current_pos} / {physical_source_frame_count} (Original: {source_frame_count})")
if current_pos >= physical_source_frame_count:
return (1, current_pos, select_every_nth)
frames_left = physical_source_frame_count - current_pos
equitable_target = target_frames_per_loop * select_every_nth
ideal_cut = current_pos + equitable_target
if frames_left <= equitable_target:
best_cut = physical_source_frame_count
print(f" -> 🧮 Absorbiendo resto final: meta fijada en frame {best_cut}")
else:
best_cut = ideal_cut
if safe_faces_list and len(safe_faces_list) > 0:
closest_face = min(safe_faces_list, key=lambda x: abs(x - ideal_cut))
best_cut = closest_face
print(f" -> ✂️ Corte Inteligente proyectado: {best_cut} (Meta equitativa: {ideal_cut})")
else:
print(f" -> ⚖️ Sin caras. Forzando corte equitativo: {ideal_cut}")
effective_chunk_frames = math.ceil((best_cut - current_pos) / select_every_nth)
effective_chunk_frames = ((effective_chunk_frames + 6) // 8) * 8 + 1
if effective_chunk_frames < 9:
effective_chunk_frames = 9
if current_pos + (effective_chunk_frames * select_every_nth) >= physical_source_frame_count:
print(f" -> 🏁 Chunk final LTX detectado. Ajustando a {effective_chunk_frames} frames para mantener regla 8n+1.")
skip_frames = current_pos
print(f" -> 🚀 Ciclo {current_loop_index}: Solicitando {effective_chunk_frames} frames efectivos (Saltando {skip_frames})")
print(f"{'='*50}\n")
return (effective_chunk_frames, skip_frames, select_every_nth)
@register_node
class SequentialLoopTrigger:
@classmethod
def INPUT_TYPES(s):
return {
"required": {
"trigger_dependency": ("*", ),
},
"hidden": {"prompt": "PROMPT", "extra_pnginfo": "EXTRA_PNGINFO"}
}
RETURN_TYPES = ()
RETURN_NAMES = ()
OUTPUT_NODE = True
FUNCTION = "trigger_next"
CATEGORY = "🔁 Sequential Batcher/Loop"
@classmethod
def IS_CHANGED(cls, **kwargs):
return time.time()
def trigger_next(self, trigger_dependency, prompt=None, extra_pnginfo=None):
global global_loop_index
global global_accumulated_frames
global global_source_frame_count
global global_server_port
next_loop = global_loop_index + 1
is_final = global_accumulated_frames >= global_source_frame_count
print(f"\n{'='*50}")
print(f"🎯 [DEBUG] NODO: Loop Trigger")
print(f" -> Progreso del vídeo: {global_accumulated_frames} / {global_source_frame_count} frames.")
if not is_final:
print(f" -> ⚙️ Preparando Ciclo {next_loop}...")
if prompt is not None:
# 🧠 HACKER MODE: Estimamos si el ciclo que vamos a encolar es el final
estimated_chunk = 50
for node_id, node_data in prompt.items():
if "AutoLoopCalculator" in node_data.get("class_type", ""):
# Rescata el chunk estimado del calculador en uso
estimated_chunk = node_data.get("inputs", {}).get("target_frames_per_loop", 50)
break
is_next_final = (global_accumulated_frames + estimated_chunk) >= global_source_frame_count
m_seeds = 0
for node_id, node_data in prompt.items():
inputs = node_data.get("inputs", {})
# Mutación de semillas
for key in ["seed", "noise_seed"]:
if key in inputs and isinstance(inputs[key], (int, float)):
inputs[key] = random.randint(1, 0xffffffff)
m_seeds += 1
# Mutación de índice
if node_data.get("class_type") == "SequentialLoopStart":
inputs["loop_idx"] = next_loop
inputs["reset_loop"] = False
# 🔪 CIRUGÍA DE GRAFO EN CALIENTE
if node_data.get("class_type") == "MasterSwitch":
print(f" -> 🔀 [Cirugía de Grafo] Mutando Master Switch para Ciclo {next_loop}...")
# Sobrescribimos el cable que viene del Stitcher por un booleano estático
inputs["is_final_cycle"] = is_next_final
if is_next_final:
if "on_false" in inputs:
del inputs["on_false"]
print(f" ✂️ Cable 'on_false' eliminado (Ahorro de VRAM en ruta inactiva).")
else:
if "on_true" in inputs:
del inputs["on_true"]
print(f" ✂️ Cable 'on_true' eliminado (Ruta pesada desconectada).")
print(f" -> 🎲 Semillas mutadas: {m_seeds}")
p = {"prompt": prompt}
if extra_pnginfo:
p["extra_data"] = {"extra_pnginfo": extra_pnginfo}
data = json.dumps(p).encode('utf-8')
req = urllib.request.Request(f"http://127.0.0.1:{global_server_port}/prompt", data=data, headers={'Content-Type': 'application/json'})
try:
urllib.request.urlopen(req, timeout=5)
print(f" -> ✅ Ciclo {next_loop} inyectado en la cola.")
except Exception as e:
print(f" -> ❌ Error HTTP: {e}")
# Limpieza ligera por ciclo para evitar fragmentación
import gc
import torch
import comfy.model_management as mm
gc.collect()
if torch.cuda.is_available():
torch.cuda.empty_cache()
else:
print(f" -> 🏁 ¡Generación Finalizada! Todos los frames ensamblados.")
# --- LIMPIEZA EXTREMA DE VRAM AUTOMÁTICA (Multi-Plataforma) ---
print(f" -> 🧹 Iniciando vaciado automático de VRAM...")
import gc
import torch
import comfy.model_management as mm
try:
# 1. Obligamos al motor interno de ComfyUI a soltar los modelos
mm.unload_all_models()
mm.soft_empty_cache()
except Exception as e:
print(f" -> ⚠️ Aviso: No se pudo usar model_management: {e}")
# 2. Forzamos al recolector de basura de Python
gc.collect()
# 3. Le arrancamos a PyTorch la memoria reservada (CUDA, ROCm y Mac MPS)
if torch.cuda.is_available():
torch.cuda.empty_cache()
torch.cuda.ipc_collect()
# HACK: Forzar la desfragmentación de la memoria caché de PyTorch
import ctypes
try:
ctypes.CDLL('libc.so.6').malloc_trim(0)
except Exception:
pass
elif hasattr(torch.backends, "mps") and torch.backends.mps.is_available():
torch.mps.empty_cache()
print(f" -> ✨ VRAM liberada con éxito. Gráfica lista para nuevos flujos.")
print(f"{'='*50}\n")
return ()