This works for me on Android and desktop and does several other formats beside video which might be useful for your project.
http://richlinks.tiddlyspot.com On android my filename looks something like this, but I think it works with relative paths too; <<richlink "file:////storage/Photos/VID_20171210_132934.mp4">> Search the forum for 'richlinks'. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/1d872edb-d368-4a02-8fd8-dd83b561e1c0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
