Set muted attribute for videos in Textmedia if autoplay is active
In most current browsers, autoplay for videos (and audio files) seems to work only if the video has no audio track or is muted. (see https://www.w3schools.com/tags/att_video_autoplay.asp)
Therefore, it might make sense to set the attribute "muted" if the option "autoplay" is activated in the content element "textmedia". The generated code would then be, for example:
<video controls autoplay muted> <source src="movie.mp4" type="video/mp4"> </video>
Perhaps an additional checkbox would also be possible to set the attribute "controls" or not.