Latency/hiccup between short clips in long playlist
- From: Michael Van Camp <mcamp@xxxxxxxxxx>
- Date: Thu, 28 Apr 2005 10:47:05 -0700
Hello,
I am trying to string together long sets of short clips in a dynamically
generated server side playlist on Windows Media Services 9. I am using RTSP
UDP, and the clips in question are on average about 7 seconds long each,
encoded in WMV 9... With dozens strung together and ideally playing
seamlessly. The player is Windows Media Player 9 embedded in a web page.
What I am seeing is that sometimes (like every 4th clip approximately) there
is a short black flicker of .5 to 1 second duration between clips. I have
tried tweaking server side and client side buffer settings to no avail. This
flicker is less common once all clips have cached, but it still happens.
What I am hearing is that it might be a problem with faststart server-side
optimizations being counter-productive in clips that are sub-20 seconds, or
that it might be a delay in the player handshaking with the server to check
if the clip has changed even though it has cached the whole clip already.
The googling and searching on the WMS docs site mostly turn up docs on
minimizing startup latency but those haven't helped me... Although I guess
technically each little clip has its own potential for startup delay?
If I am being a newb and missing some info here please let me know... Do you
need more specific codec information, etc...?
If anyone has any insight I would appreciate it...
Thanks!
-Mike
Mike at org dot vancamp (domain reversed to protect the innocent)
.
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