Update app.py

app.py

@@ -145,13 +145,9 @@ def get_text_from_mp3_whisper(inputType:str, mp3_file: str, url_path: str, taskN
     output_file = 'subtitled.mp4'
     try:
         print("attempt to output file")
-        (
-            ffmpeg
-            .input(input_file)
-            .filter('subtitles', subtitles_file)
-            .output(output_file)
-            .run()
-        )
+        video = ffmpeg.input(input_file)
+        audio = video.audio
+        ffmpeg.concat(video.filter("subtitles", subtitles_file), audio, v=1, a=1).output(output_file).run()
     except Exception as e:
         print("failed to output file")
         print(e)