The streamer (see the instructions at the end of the email for building it)
broadcasts audio and video streams over RTP (likely in multicast), and can
be started with
    streamer <media file> [<multicast group> or <destination IP>] [<destination port>]
it prints out an SDP that can be saved on a file and used to receive the
stream with a standard RTP client (for example, vlc).

Some different media file formats and codecs are supported, but it it
recommended to start with "simple" mpeg files.
If a file contains multiple video streams, the streamer assumes they are the
same video encoded at different quality/bitrate.

The script Test/encode.sh can be used to generate a media file with
multiple video streams encoded at different bitrates (it uses ffmpeg for
the transcoding).

HOW TO BUILD:
The streamer is based on ffmpeg's libavformat. So, first you have to download
and compile ffmpeg
    tar xvzf avstreamer-v0.1.tgz
    cd AVStreamer
    svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg
    cd ffmpeg
    ./configure; make
then, you can compile the streamer
    cd ..
    make FFDIR=ffmpeg
It should create a "streamer" executable. 
