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import os
import asyncio
import logging
import tempfile
import requests
from datetime import datetime
import edge_tts
import gradio as gr
import torch
from transformers import GPT2Tokenizer, GPT2LMHeadModel
from keybert import KeyBERT
from moviepy.editor import VideoFileClip, concatenate_videoclips, AudioFileClip, CompositeAudioClip
import re
import math
from pydub import AudioSegment
from collections import Counter
import shutil
import json
# Configuración de logging MEJORADA
logging.basicConfig(
level=logging.DEBUG,
format='%(asctime)s - %(levelname)s - %(message)s',
handlers=[
logging.StreamHandler(),
logging.FileHandler('video_generator_full.log', encoding='utf-8')
]
)
logger = logging.getLogger(__name__)
logger.info("="*80)
logger.info("INICIO DE EJECUCIÓN - GENERADOR DE VIDEOS")
logger.info("="*80)
# Clave API de Pexels (configuración segura)
PEXELS_API_KEY = os.environ.get("PEXELS_API_KEY")
if not PEXELS_API_KEY:
logger.critical("NO SE ENCONTRÓ PEXELS_API_KEY EN VARIABLES DE ENTORNO")
raise ValueError("API key de Pexels no configurada")
else:
logger.info("API key de Pexels configurada correctamente")
# Inicialización de modelos CON LOGS DETALLADOS
MODEL_NAME = "datificate/gpt2-small-spanish"
logger.info(f"Inicializando modelo GPT-2: {MODEL_NAME}")
try:
tokenizer = GPTizer.from_pretrained(MODEL_NAME)
model = GPT2LMHeadModel.from_pretrained(MODEL_NAME).eval()
if tokenizer.pad_token is None:
tokenizer.pad_token = tokenizer.eos_token
logger.info(f"Modelo GPT-2 cargado | Vocabulario: {len(tokenizer)} tokens")
except Exception as e:
logger.error(f"FALLA CRÍTICA al cargar GPT-2: {str(e)}", exc_info=True)
tokenizer = model = None
logger.info("Cargando modelo KeyBERT...")
try:
kw_model = KeyBERT('distilbert-base-multilingual-cased')
logger.info("KeyBERT inicializado correctamente")
except Exception as e:
logger.error(f"FALLA al cargar KeyBERT: {str(e)}", exc_info=True)
kw_model = None
# [FUNCIÓN BUSCAR_VIDEOS_PEXELS ORIGINAL CON LOGS AÑADIDOS]
def buscar_videos_pexels(query, api_key, per_page=5):
logger.debug(f"Buscando en Pexels: '{query}' | Resultados: {per_page}")
headers = {"Authorization": api_key}
try:
params = {
"query": query,
"per_page": per_page,
"orientation": "landscape",
"size": "medium"
}
logger.debug(f"Params: {params}")
response = requests.get(
"https://api.pexels.com/videos/search",
headers=headers,
params=params,
timeout=20
)
response.raise_for_status()
try:
data = response.json()
logger.info(f"Pexels: {len(data.get('videos', []))} videos encontrados")
return data.get('videos', [])
except json.JSONDecodeError:
logger.error(f"Pexels: JSON inválido | Status: {response.status_code} | Respuesta: {response.text[:200]}...")
return []
except requests.exceptions.RequestException as e:
logger.error(f"Error de conexión Pexels: {str(e)}")
except Exception as e:
logger.error(f"Error inesperado Pexels: {str(e)}", exc_info=True)
return []
# [FUNCIÓN GENERATE_SCRIPT ORIGINAL CON LOGS]
def generate_script(prompt, max_length=150):
logger.info(f"Generando guión | Prompt: '{prompt[:50]}...' | Longitud máxima: {max_length}")
if not tokenizer or not model:
logger.warning("Modelos no disponibles - Usando prompt original")
return prompt
try:
enhanced_prompt = f"Escribe un guion corto y coherente sobre: {prompt}"
inputs = tokenizer(enhanced_prompt, return_tensors="pt", truncation=True, max_length=512)
logger.debug("Generando texto con GPT-2...")
outputs = model.generate(
**inputs,
max_length=max_length,
do_sample=True,
top_p=0.9,
top_k=40,
temperature=0.7,
repetition_penalty=1.5,
pad_token_id=tokenizer.pad_token_id,
eos_token_id=tokenizer.eos_token_id
)
text = tokenizer.decode(outputs[0], skip_special_tokens=True)
text = re.sub(r'<[^>]+>', '', text)
sentences = text.split('.')
if sentences:
final_text = sentences[0] + '.'
logger.info(f"Guion generado: '{final_text[:100]}...'")
return final_text
return text
except Exception as e:
logger.error(f"Error generando guion: {str(e)}", exc_info=True)
return prompt
# [FUNCIÓN TEXT_TO_SPEECH ORIGINAL CON LOGS]
async def text_to_speech(text, output_path, voice="es-ES-ElviraNeural"):
logger.info(f"Convirtiendo texto a voz | Caracteres: {len(text)} | Voz: {voice}")
try:
communicate = edge_tts.Communicate(text, voice)
await communicate.save(output_path)
logger.info(f"Audio guardado en: {output_path} | Tamaño: {os.path.getsize(output_path)} bytes")
return True
except Exception as e:
logger.error(f"Error en TTS: {str(e)}", exc_info=True)
return False
# [FUNCIÓN DOWNLOAD_VIDEO_FILE ORIGINAL CON LOGS]
def download_video_file(url, temp_dir):
if not url:
logger.warning("URL de video no proporcionada")
return None
try:
logger.info(f"Descargando video desde: {url[:50]}...")
file_name = f"video_{datetime.now().strftime('%H%M%S%f')}.mp4"
output_path = os.path.join(temp_dir, file_name)
with requests.get(url, stream=True, timeout=30) as r:
r.raise_for_status()
with open(output_path, 'wb') as f:
for chunk in r.iter_content(chunk_size=8192):
f.write(chunk)
logger.info(f"Video descargado: {output_path} | Tamaño: {os.path.getsize(output_path)} bytes")
return output_path
except Exception as e:
logger.error(f"Error descargando video: {str(e)}", exc_info=True)
return None
# [FUNCIÓN LOOP_AUDIO_TO_LENGTH ORIGINAL CON LOGS]
def loop_audio_to_length(audio_clip, target_duration):
logger.debug(f"Ajustando audio | Duración actual: {audio_clip.duration:.2f}s | Objetivo: {target_duration:.2f}s")
if audio_clip.duration >= target_duration:
return audio_clip.subclip(0, target_duration)
loops = math.ceil(target_duration / audio_clip.duration)
logger.debug(f"Creando {loops} loops de audio")
audios = [audio_clip] * loops
return concatenate_videoclips(audios).subclip(0, target_duration)
# [FUNCIÓN EXTRACT_VISUAL_KEYWORDS_FROM_SCRIPT ORIGINAL CON LOGS]
def extract_visual_keywords_from_script(script_text):
logger.info("Extrayendo palabras clave del guion")
clean_text = re.sub(r'[^\w\sáéíóúñ]', '', script_text.lower())
if kw_model:
try:
keywords = kw_model.extract_keywords(
clean_text,
keyphrase_ngram_range=(1, 1),
stop_words='spanish',
top_n=3
)
if keywords:
logger.debug(f"KeyBERT keywords: {keywords}")
return [kw[0].replace(" ", "+") for kw in keywords]
except Exception as e:
logger.warning(f"KeyBERT falló: {str(e)}")
words = clean_text.split()
stop_words = {"el", "la", "los", "las", "de", "en", "y", "a", "que", "es", "un", "una", "con"}
keywords = [word for word in words if len(word) > 3 and word not in stop_words]
if not keywords:
logger.warning("Usando palabras clave predeterminadas")
return ["naturaleza", "ciudad", "paisaje"]
word_counts = Counter(keywords)
top_keywords = [word.replace(" ", "+") for word, _ in word_counts.most_common(3)]
logger.info(f"Palabras clave finales: {top_keywords}")
return top_keywords
# [FUNCIÓN CREAR_VIDEO ORIGINAL CON LOGS]
def crear_video(prompt_type, input_text, musica_file=None):
logger.info("="*80)
logger.info(f"INICIANDO CREACIÓN DE VIDEO | Tipo: {prompt_type}")
logger.debug(f"Input: '{input_text[:100]}...'")
# 1. Generar o usar guion
start_time = datetime.now()
if prompt_type == "Generar Guion con IA":
logger.info("Generando guion con IA...")
guion = generate_script(input_text)
else:
logger.info("Usando guion proporcionado")
guion = input_text
logger.info(f"Guion final ({len(guion)} caracteres): '{guion[:100]}...'")
if not guion.strip():
logger.error("El guion está vacío")
raise ValueError("El guion está vacío")
# Directorio temporal
temp_dir = tempfile.mkdtemp()
logger.info(f"Directorio temporal creado: {temp_dir}")
temp_files = []
try:
# 2. Generar audio de voz
logger.info("Generando audio de voz...")
voz_path = os.path.join(temp_dir, "voz.mp3")
if not asyncio.run(text_to_speech(guion, voz_path)):
logger.error("Fallo en generación de voz")
raise ValueError("Error generando voz")
temp_files.append(voz_path)
audio_tts = AudioFileClip(voz_path)
audio_duration = audio_tts.duration
logger.info(f"Duración audio voz: {audio_duration:.2f} segundos")
# 3. Extraer palabras clave
logger.info("Extrayendo palabras clave...")
try:
keywords = extract_visual_keywords_from_script(guion)
logger.info(f"Palabras clave identificadas: {keywords}")
except Exception as e:
logger.error(f"Error extrayendo keywords: {str(e)}")
keywords = ["naturaleza", "paisaje"]
# 4. Buscar y descargar videos
logger.info("Buscando videos en Pexels...")
videos_data = []
for keyword in keywords:
try:
videos = buscar_videos_pexels(keyword, PEXELS_API_KEY, per_page=3)
if videos:
videos_data.extend(videos)
logger.info(f"Encontrados {len(videos)} videos para '{keyword}'")
except Exception as e:
logger.warning(f"Error buscando videos para '{keyword}': {str(e)}")
if not videos_data:
logger.warning("No se encontraron videos - Usando palabras clave genéricas")
for keyword in ["naturaleza", "ciudad", "paisaje"]:
videos = buscar_videos_pexels(keyword, PEXELS_API_KEY, per_page=3)
if videos:
videos_data.extend(videos)
if not videos_data:
logger.error("No se encontraron videos para ninguna palabra clave")
raise ValueError("No se encontraron videos en Pexels para ninguna palabra clave")
video_paths = []
for video in videos_data:
if 'video_files' not in video or not video['video_files']:
continue
try:
best_quality = max(
video['video_files'],
key=lambda x: x.get('width', 0) * x.get('height', 0)
)
if 'link' in best_quality:
path = download_video_file(best_quality['link'], temp_dir)
if path:
video_paths.append(path)
temp_files.append(path)
logger.info(f"Video descargado: {best_quality['link']}")
except Exception as e:
logger.warning(f"Error procesando video: {str(e)}")
if not video_paths:
logger.error("No se pudo descargar ningún video")
raise ValueError("No se pudo descargar ningún video")
# 5. Procesar videos
logger.info("Procesando videos descargados...")
clips = []
current_duration = 0
for path in video_paths:
if current_duration >= audio_duration:
break
try:
clip = VideoFileClip(path)
usable_duration = min(clip.duration, 10)
if usable_duration > 1:
clips.append(clip.subclip(0, usable_duration))
current_duration += usable_duration
logger.debug(f"Clip añadido: {usable_duration:.1f}s (total: {current_duration:.1f}/{audio_duration:.1f}s)")
except Exception as e:
logger.warning(f"Error procesando video {path}: {str(e)}")
if not clips:
logger.error("No hay clips válidos para crear el video")
raise ValueError("No hay clips válidos para crear el video")
video_base = concatenate_videoclips(clips, method="compose")
logger.info(f"Duración base del video: {video_base.duration:.2f}s")
if video_base.duration < audio_duration:
num_repeats = math.ceil(audio_duration / video_base.duration)
logger.info(f"Repitiendo video {num_repeats} veces para ajustar duración")
video_base = concatenate_videoclips([video_base] * num_repeats).subclip(0, audio_duration)
# 6. Manejar música de fondo
logger.info("Procesando audio...")
final_audio = audio_tts
if musica_file:
try:
music_path = os.path.join(temp_dir, "musica.mp3")
shutil.copyfile(musica_file, music_path)
temp_files.append(music_path)
logger.info(f"Música copiada a: {music_path}")
musica_audio = AudioFileClip(music_path)
logger.debug(f"Duración música original: {musica_audio.duration:.2f}s")
if musica_audio.duration < audio_duration:
musica_audio = loop_audio_to_length(musica_audio, audio_duration)
logger.debug(f"Música looped: {musica_audio.duration:.2f}s")
final_audio = CompositeAudioClip([
musica_audio.volumex(0.3),
audio_tts.volumex(1.0)
])
logger.info("Mezcla de audio completada")
except Exception as e:
logger.warning(f"Error procesando música: {str(e)}")
# 7. Crear video final
logger.info("Renderizando video final...")
video_final = video_base.set_audio(final_audio)
output_path = os.path.join(temp_dir, "final_video.mp4")
video_final.write_videofile(
output_path,
fps=24,
threads=4,
codec="libx264",
audio_codec="aac",
preset="medium",
logger=None
)
total_time = (datetime.now() - start_time).total_seconds()
logger.info(f"VIDEO FINALIZADO: {output_path} | Tiempo total: {total_time:.2f}s")
return output_path
except Exception as e:
logger.error(f"ERROR EN CREAR_VIDEO: {str(e)}", exc_info=True)
raise
finally:
logger.info("Limpiando archivos temporales...")
for path in temp_files:
try:
if os.path.isfile(path):
os.remove(path)
except Exception as e:
logger.warning(f"No se pudo eliminar {path}: {str(e)}")
try:
shutil.rmtree(temp_dir, ignore_errors=True)
except Exception as e:
logger.warning(f"No se pudo eliminar {temp_dir}: {str(e)}")
# [FUNCIÓN RUN_APP ORIGINAL CON LOGS]
def run_app(prompt_type, prompt_ia, prompt_manual, musica_file):
logger.info("="*80)
logger.info("SOLICITUD RECIBIDA EN INTERFAZ")
input_text = prompt_ia if prompt_type == "Generar Guion con IA" else prompt_manual
if not input_text.strip():
logger.warning("Texto de entrada vacío")
return None, "Por favor ingresa texto"
try:
logger.info("Iniciando creación de video...")
video_path = crear_video(prompt_type, input_text, musica_file)
logger.info("Video creado exitosamente")
return video_path, "✅ Video generado exitosamente"
except ValueError as ve:
logger.warning(f"Error de validación: {str(ve)}")
return None, f"⚠️ {ve}"
except Exception as e:
logger.error(f"Error crítico: {str(e)}", exc_info=True)
return None, f"❌ Error: {str(e)}"
# [INTERFAZ DE GRADIO ORIGINAL COMPLETA]
with gr.Blocks(title="Generador de Videos con IA", theme=gr.themes.Soft(), css="""
.gradio-container {max-width: 800px; margin: auto;}
h1 {text-align: center;}
""") as app:
gr.Markdown("# 🎬 Generador Automático de Videos con IA")
with gr.Row():
with gr.Column():
prompt_type = gr.Radio(
["Generar Guion con IA", "Usar Mi Guion"],
label="Método de Entrada",
value="Generar Guion con IA"
)
with gr.Column(visible=True) as ia_guion_column:
prompt_ia = gr.Textbox(
label="Tema para IA",
lines=2,
placeholder="Ej: Un paisaje natural con montañas y ríos...",
max_lines=4
)
with gr.Column(visible=False) as manual_guion_column:
prompt_manual = gr.Textbox(
label="Tu Guion Completo",
lines=5,
placeholder="Ej: En este video exploraremos los misterios del océano...",
max_lines=10
)
musica_input = gr.Audio(
label="Música de fondo (opcional)",
type="filepath",
interactive=True
)
generate_btn = gr.Button("✨ Generar Video", variant="primary")
with gr.Column():
video_output = gr.Video(
label="Video Generado",
interactive=False,
height=400
)
status_output = gr.Textbox(
label="Estado",
interactive=False,
show_label=False,
placeholder="Esperando acción..."
)
prompt_type.change(
lambda x: (gr.update(visible=x == "Generar Guion con IA"),
gr.update(visible=x == "Usar Mi Guion")),
inputs=prompt_type,
outputs=[ia_guion_column, manual_guion_column]
)
generate_btn.click(
lambda: (None, "⏳ Procesando... (esto puede tomar 2-5 minutos)"),
outputs=[video_output, status_output],
queue=False
).then(
run_app,
inputs=[prompt_type, prompt_ia, prompt_manual, musica_input],
outputs=[video_output, status_output]
)
gr.Markdown("### Instrucciones:")
gr.Markdown("""
1. **Selecciona el tipo de entrada**:
- "Generar Guion con IA": Describe un tema
- "Usar Mi Guion": Escribe tu guion completo
2. **Sube música** (opcional): Selecciona un archivo de audio
3. **Haz clic en Generar Video"
4. Espera a que se procese el video (puede tomar varios minutos)
""")
if __name__ == "__main__":
logger.info("Iniciando aplicación Gradio...")
try:
app.launch(server_name="0.0.0.0", server_port=7860)
except Exception as e:
logger.critical(f"No se pudo iniciar la app: {str(e)}", exc_info=True)
raise |