Using 4.17 master branch.
Is it possible to playback media clips in the Sequencer using 4.17?
We want to scrub through the Sequencer containing media clips as seen in this frame from "The Human Race’ GDC 2017 demo.
Thanks!
This is not yet possible in the Master branch.
We’re having the code for this in a separate branch and are still working on cleaning it up. The implementation of the GDC version was put together rather quickly and is built on top of the existing Media Framework. We’re building a whole new version of the Media Framework to support this use case more generally and with better performance. Media Framework 3.0 is currently scheduled for 4.17, but that code, too, is still in a separate branch.
Thanks. Looking forward this being included. It will open up the engine to the previz/post production market, which is kind of a big deal. 
Hi all - this is still the first result on Google about it. Is this now supported as part of 4.18 or has it not made it in yet?
A preview version of this was released in 4.17 with the MediaCompositing plug-in. It allows for playing EXR image sequences as seen in The Human Race demo.
Cheers, thanks!