Best practice for streaming video with quickly (2-5 sec) changing sources

Hi!
In my flex app I have a videodisplay, which should change its
source every 2-5 seconds to an other clip (and or an other playhead
time). Im trying to reduce the buffering times between the source
changes, so that the resulting video plays without interceptions.
To reduce the buffering times i've tried multiple video instances
which preload its new source while an other instance is playing its
clip.
Are there better ways for doing this? Could SMIL be a
solution?
Thanks!

There are several ways you can do this:
1) If you really want to just reduce buffer times, while
continuing to switch clips manually, you can use the "2-phase
buffering" approach that developers commonly use to reduce startup
times. Just before you switch, set the buffer size to something
very small (0.5 secs is common). This will allow the buffer to fill
rapidly. When you get the buffer full status event, set it to
something more stable, like 2 secs, or 5 secs. Note that there will
always be a small gap in playback with this approach, but that may
be acceptable for your app.
2) Use client-side playlists. You can add your short clips to
the playlist using NetStream.play(reset=false). Each one will play
in turn, with no gap in between. This is a very powerful technique,
but it does require you to know somewhat in advance what clips
needs to be added to the list. If you need to switch immediately,
you'll still end up with a small gap in playback.
3) Flash Player 10, in combination with an upcoming release
of Flash Media Server, will support a feature called "Dynamic
Streaming" that will allow for seamless transitions between clips,
with very little latency. This may not help you out right now, but
be on the lookout for it!

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