Adobe has released yesterday Flash Media Encoder 2.5.
FME 2.5 adds support for pushing high quality h.264 video streams to the Flash Media Server (or to CDN’s).
You can also push AAC audio streams if you purchase this [update 10/8/2015: plugin’s website is no longer online] AAC Encoding plugin for FME from MainConcept.
FME 2.5 also adds a few neat features like command-line control, auto-restart after system restarts and a auto-adjust feature that enables you to maintain a high-quality video stream in uncertain network conditions.
FME 2.5 can be downloaded for free from the Adobe website but it is currently only available for Windows.
Also I want to remind you that AVConference can display a video/audio stream coming from FME via FMS. Users will see the video stream coming from FME just as another user in the users list. You can read more details about this feature here.
Using FMS3 and FME 2.5 you will now be able to push high quality video streams to your users logged into AVConference. Some of our customers are using a similar setup to push video feeds from classrooms, training sessions and studio interviews.
FME product page on the Adobe website