Remove wrong function call

join.py

@@ -2,7 +2,5 @@ import ffmpeg
 
 def join_artifacts():
     audio_in = ffmpeg.input('audio_out.mp3')
-    video_in = ffmpeg.input('out.mp4')
-    ffmpeg.concat(video_in.filter("subtitles", "audio_out.srt"), audio_in, v=1, a=1).output('av_out.mp4').run()
-
-join_artifacts()
+    video_in = ffmpeg.input('video_out.mp4')
+    ffmpeg.concat(video_in.filter("subtitles", "audio_out.srt"), audio_in, v=1, a=1).output('av_out.mp4').run()