Update audio.py

audio.py

@@ -33,7 +33,12 @@ def gen_audio(subtitles, tmpdir):
         
         return CompositeVideoClip([clip, *txt_clips])
 
-    video_with_subtitles = add_subtitles(combined_clip, subtitles)
+    if len(subtitles) != 0:
+        video_with_subtitles = add_subtitles(combined_clip, subtitles)
+    else:
+        combined_clip.write_videofile(tmpdir + '/output_with_subtitles.mp4', fps=24)
+        print("Generated Video with Subtitles to:", tmpdir + '/output_with_subtitles.mp4')
+        return tmpdir + '/output_with_subtitles.mp4'
 
     def generate_audio(subtitles, total_duration):
         temp_audio_path = tempfile.mkdtemp()