media-libs/gstreamer-1.14.0 News here: https://gstreamer.freedesktop.org/releases/1.14/ ...may be this major update version gstreamer-1.14 will fit better with masked ffmpeg-4.0
gnome-next overlay already has this in case you are interested in doing some testing.
simple bumping all the ebuilds gst-1.14.0 to 1.14.1 from gnome-next works fine!
FYI I got 1.14.1 into the gnome-next overlay.
Is there an eta for when we can get this in the the main repo? gnome-next pulls in a lot more.
This week
*** Bug 657562 has been marked as a duplicate of this bug. ***
Main things should be done; some more auxilliary stuff to be done in the coming days. Testing appreciated, especially in the area of things involving OpenGL/GLESv2 (gst-plugins-base, gst-plugins-bad, gst-plugins-gtk, gst-plugins-vaapi)