DASH playback of AV1 video in Firefox

Bitmovin and Mozilla, both members of the Alliance for Open Media (AOM), are partnering to bring AV1 playback with HTML5 to Firefox as the first browser to play AV1 MPEG-DASH/HLS streams.
To make playback possible while the AV1 bitstream is still being finalized, we just need to ensure that the encoder and decoder use the same version of the bitstream. Bitmovin and Mozilla agreed on a simple, but for the time being useful, codec string, to ensure compatibility – check out the playback demo to see for yourself.

Link: https://hacks.mozilla.org/2017/11/dash-playback-of-av1-video/