Again, not really RTMP streaming as this method is obsolete.
Video with poster image and multilingual subtitles.
The subtitles need to be placed in a folder on your site. The plugin reads automatically all available subtitles files and places them as selections in the CC button on the player:
It is not possible currently to place subtitles on AWS since we did not found a way to filter file types in a bucket without requiring root access to the account, which is not recommended. Also, since JW Player version 7.7, we noticed that special characters no longer show up properly when using html encoding (http://www.miracletutorials.com/how-to-fix-subtitle-problems-in-foreign-languages/). This means they resolved finally that issue. This also means that you need to redo all subtitles if you used html encoding, but the good news is that you can now write subtitles with special characters (accents included) without problems.
And with normal watermark and subtitles waiting for user action (captions behaviour):
With subtitles set to play automatically: