Update app.py

app.py

@@ -16,7 +16,8 @@ jobs = {}  # job_id: {"status": "processing/completed/failed", "output_file": ..
 def download_file(url, filename):
     try:
         logging.info(f"Downloading file from: {url}")
-        r = requests.get(url, stream=True)
+        headers = {"User-Agent": "Mozilla/5.0"}  # Pretend to be a browser
+        r = requests.get(url, headers=headers, stream=True)
         r.raise_for_status()
         with open(filename, 'wb') as f:
             for chunk in r.iter_content(chunk_size=8192):
@@ -27,6 +28,7 @@ def download_file(url, filename):
         raise
 
 
+
 def run_ffmpeg(base_file, overlay_file, output_file):
     cmd = [
         "ffmpeg", "-y", "-i", base_file, "-i", overlay_file,