MP4 progressive download needs hint tracks in MP4 file?

[bongtv]

I'm wondering if RTP hint tracks in MP4 files are necessary to provide
progressive download functionality over my NGINX server configuration. I
can't remember where but I read somewhere that these additional tracks
support the server by seeking operations (byte-range). 
Thanks for your feedback, Hannes

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,272831,272831#msg-272831