I released support for Matroska (.mkv) Events storage.
By the way all works fine, exept Timeline and single Image view ( I'm not expert in web, and so it is difficult for me to understand how to do this)
New option, ZM_USE_MKV_STORAGE, which enables this feature is added You will not loose any old images when this option is enabled (when no .mkv file is found Eventstream will fall back to previous method of view)
Plus there is some patches for proper handling RTSP protocol (fragmentation fixes and so on...)
But !!! Patch is about 130k (unzipped) in size and I'm interesting where to place it...

If there is interest in it tell me...