[kh99]

OK, you could try this: use a plugin on hook bbcode_create to replace the video handling function that's in $this->tag_list with your own function. Then have your function check for the provider option of "dailymotion", and do your special handing (return whatever html you want), and if it's not "dailymotion", call the existing function (or copy the code from the existing function). Or I suppose in your case you could just register your extra information to the bbcode_video template as you are doing in your plugin, then call the existing code.

See includes/class_bbcode.php, function vB_BbcodeParser() and function handle_bbcode_video().

I believe vB_BbcodeParser() is the constructor for a base class, so you may want to check the actual class before replacing the video handling function, so that the classes in class_bbcode_alt.php will still work as the default (for instance, when a text-only version is being rendered).