Transcode on the fly and move cursor on the timeline

Hi, I need to check if EvoStream can do what i need. I need to transcode on the fly an mp4 stored on the linux platform who EMS is, apply a watermark logo and play on Jwplayer (or someother). But it can’t be a live stream. I need to forward, pause, stop, replay, backward when i want. My transcode working with that api call :

source=rtsp://my.server.pro:5544/vod/mp4:big_buck_bunny_720p_5mb.mp4 groupName=group videoBitrates=800k overlays=/var/evostreamms/media/logo_beta.png destinations=test keepalive=1

But its a Live stream… Not possible de seek time. Do you know if it possible ? Maybe use other protocols HLS,HDS ? There is a solution to source directly a file. Not an RTSP ? I read all the technical transcode guide, but the command failing :

transcode	
  source=file://C:videostest.mp4 groupName=group	videoBitrates=100k audioBitrates=copy	

Maybe the destination is not set… Help would be appreciate, to validate EvoStream capabilities. B