Is it at all possible to save h.264 video from the Flash/Actionscript Camera (i.e. webcam) without needing a streaming server (like fms/wowza/red5)?
Where I'm also going with this is, I'd like to take the sampleData from Microphone, and transcode it client-side so that a user can record h.264/aac (or mp3) and store it locally or remotely for easy viewing in a mp4 container....
Any tips before I re-invent the wheel or run into a roadblock?
Adobe made sure that you need a streaming server for the recording.
At least Red5 server is free, and can be installed as part of your Air application.
Web applications will definitely need a streaming server.
Came across something interesting, which you might want to try also: http://www.zeropointnine.com/blog/updated-flv-encoder-alchem/
It uses an external library.
I would suggest a more free codec that h.264 or mp3 (about licensing with h.264: ZDnet article).
That being said, MicRecording (code) is an audio recording class that has been developed to save audio to a file.
It uses Adobe's Microphone class, which has a wealth of examples and ideas.
Flash 11 supports recording video in H.264 but not AAC. So you can record a video with H.264 and Speex.
来源：https://stackoverflow.com/questions/8709629/record-h-264-video-in-flash-without-streaming-server