Create app.py

app.py

@@ -0,0 +1,97 @@
+import gradio as gr
+from pydub import AudioSegment
+import uuid
+import os
+
+UPLOAD_DIR = "uploads"
+OUTPUT_DIR = "outputs"
+CROSSFADE_MS = 20_000  # 20 segundos reales
+
+os.makedirs(UPLOAD_DIR, exist_ok=True)
+os.makedirs(OUTPUT_DIR, exist_ok=True)
+
+# -------------------------
+# MOTOR DE MEZCLA REAL
+# -------------------------
+
+def create_mix(files, progress=gr.Progress()):
+    if not files or len(files) < 2 or len(files) > 4:
+        raise gr.Error("Sube entre 2 y 4 canciones")
+
+    progress(0, desc="Validando archivos…")
+
+    paths = []
+    for f in files:
+        ext = f.name.split(".")[-1].lower()
+        if ext not in ["mp3", "wav", "flac", "m4a"]:
+            raise gr.Error("Formato no soportado")
+
+        name = f"{uuid.uuid4().hex}.{ext}"
+        path = os.path.join(UPLOAD_DIR, name)
+
+        # Copia segura (NO rename, esto arregla bugs en HF)
+        with open(f.name, "rb") as src, open(path, "wb") as dst:
+            dst.write(src.read())
+
+        paths.append(path)
+
+    progress(10, desc="Cargando primera canción…")
+
+    current = AudioSegment.from_file(paths[0])
+    step = 80 // (len(paths) - 1)
+
+    for i, p in enumerate(paths[1:], start=1):
+        progress(10 + step * (i - 1), desc=f"Mezclando canción {i + 1}")
+        next_track = AudioSegment.from_file(p)
+        current = current.append(next_track, crossfade=CROSSFADE_MS)
+
+    progress(95, desc="Exportando mix…")
+
+    out_name = f"monx_ai_mix_{uuid.uuid4().hex}.wav"
+    out_path = os.path.join(OUTPUT_DIR, out_name)
+    current.export(out_path, format="wav")
+
+    progress(100, desc="Mix listo 🎶")
+
+    return out_path
+
+# -------------------------
+# INTERFAZ GRADIO
+# -------------------------
+
+with gr.Blocks(title="MONX AI") as demo:
+    gr.Markdown(
+        """
+        <div style="text-align:center">
+          <h1>🎵 MONX AI</h1>
+          <p>Fusión de audio inteligente con crossfade</p>
+        </div>
+        """
+    )
+
+    with gr.Column():
+        files = gr.File(
+            label="Sube de 2 a 4 canciones",
+            file_count="multiple",
+            file_types=[".mp3", ".wav", ".flac", ".m4a"]
+        )
+
+        btn = gr.Button("✨ Crear Mix", variant="primary")
+
+        output = gr.Audio(
+            label="Resultado",
+            type="filepath"
+        )
+
+    btn.click(
+        fn=create_mix,
+        inputs=files,
+        outputs=output
+    )
+
+# -------------------------
+# HF ENTRYPOINT
+# -------------------------
+
+if __name__ == "__main__":
+    demo.launch()