[vlc-devel] will streaming protocols survive OR will http become the protocol of choice?!
Marc E. Fiuczynski
mef at CS.Princeton.EDU
Tue Jan 29 20:29:29 CET 2008
I've been playing a bit with VLC using both the client and server
components of RTSP, and am excited to see the recent submitted patches
on supporting client-side RTMP. I'm just curious what the developers of
VLC consider the longevity of (legacy) RT*P streaming protocols. It
seems that one can do everything (except multicast) via HTTP.
Specifically, the perceived benefits of streaming protocols (e.g., RTSP,
RTMP) are to the best of my knowledge:
1) security (users cannot easily save a stream to disk)
2) trick play (seek to arbitrary points)
3) lower bandwidth utilization
None of those benefits hold any more, as one can now:
1) easily save streams to disk using various media players,
2) trick play is now supported either through the use of HTTP range
queries or on the server side via a CGI (see youtube), and
3) http servers designed for delivering multimedia "just in time"
(versus ASAP bulk downloads) in ways that mirrors what streaming
protocols (again a simple experiment with youtube reveals that they pace
the outgoing data delivery).
Very curious about your take on the longevity of RT*P protocols.
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