Update api/ltx_server.py

api/ltx_server.py

@@ -540,15 +540,15 @@ class VideoService:
         return nova_list
 
     def _concat_mp4s_no_reencode(self, lista_mp4, output_path):
-    import tempfile, subprocess
-    with tempfile.NamedTemporaryFile("w", delete=False, suffix=".txt") as f:
-        for mp4 in lista_mp4:
-            f.write(f"file '{os.path.abspath(mp4)}'\n")
-        lista_path = f.name
-
-    print(f"[DEBUG] Concatenando {len(lista_mp4)} partes em {output_path}")
-    cmd = f'ffmpeg -y -f concat -safe 0 -i "{lista_path}" -c copy "{output_path}"'
-    subprocess.run(cmd, shell=True, check=True)
+    
+        with tempfile.NamedTemporaryFile("w", delete=False, suffix=".txt") as f:
+            for mp4 in lista_mp4:
+                f.write(f"file '{os.path.abspath(mp4)}'\n")
+            lista_path = f.name
+
+        print(f"[DEBUG] Concatenando {len(lista_mp4)} partes em {output_path}")
+        cmd = f'ffmpeg -y -f concat -safe 0 -i "{lista_path}" -c copy "{output_path}"'
+        subprocess.run(cmd, shell=True, check=True)