Update app.py

app.py

@@ -85,9 +85,12 @@ async def convert_video_task(input_path, downscale, faster, use_mp3, audio_only,
 
     # Compress video without audio
     video_cmd = [
-        'ffmpeg', '-y', '-hwaccel', accel, '-i', input_path
-    ]
+    'ffmpeg', '-y', '-hwaccel', accel, '-i', input_path
+]
 
+if downscale:
+    video_cmd += ['-vf', 'scale=-2:144']
+    
     if custom_bitrate:
         video_cmd += ['-b:v', f"{int(video_bitrate)}k"]
     else: