HLS vs MPEG-DASH vs pure MP4/WebM
What's the best format (?) for delivering video contents online?
Googling tells me that HLS and MPEG-DASH are mostly similar, and I should use one of those for adaptive bitrate streaming, yet YouTube seems to be sending raw MP4 or WebM files. Most video hosting companies seems to use HLS (or at least some kind of their own implementations on top of it).
If anyone has any insight on this, please help me out choosing the best format.