Output in mp4 not mkv

lecturemunger.py

@@ -141,8 +141,8 @@ def do():
                 # Extract audio, process it, add it back to the video
                 video_in = dest
                 processed_audio = os.path.join(processed_audio_dir, filename.split(".")[0] + ".wav")
-                final_output_name = os.path.join(final, filename)
-                # do_command("Help: Command=Popmute")
+                final_output_name = os.path.join(final, filename.split(".")[0] + ".mp4")
+                do_command("New:")
                 do_command("Import2: Filename={}".format(video_in))
                 time.sleep(5)
                 do_command("SelectAll:")
@@ -156,12 +156,12 @@ def do():
                 do_command("SelectAll:")
                 do_command("RemoveTracks:")
                 time.sleep(5)
-                # do_command('Close:')
+                # do_command('Close:') TODO THis causes audacity to wait for a input
                 # final_output_name = "output-" +
                 # TODO Folderisation of output by lecture
                 print("Combining video at {} with audio at {}".format(video_in, processed_audio))
                 # https://superuser.com/questions/277642/how-to-merge-audio-and-video-file-in-ffmpeg
                 call('ffmpeg -i {} -i {} -acodec copy -vcodec copy -map 0:v:0 -map 1:a:0 {}'.format(video_in, processed_audio, final_output_name), shell=True)
-                print("\033[92mDone! Result is at {}".format(final_output_name))
-
+                print("\033[92mDone! Result is at {}\e[0m".format(final_output_name))
+        print("Munging complete!!!")
 do()