On Apr 25, 2008, at 7:41 AM, douglas a. welton wrote:
Bob,
re: Quartz Composer
Did you check the "Asynchronous Mode" checkbox on the Movie Loader
patch's Settings panel? This box is specifically available to
allow for playback of streaming material.
Eh? I don't see a patch called "Movie Loader" at all. I see a
Generator patch called "Image With Movie", and the only setting is
"Highest Quality". I'm doing all development under Tiger because I
have to deploy on older systems, could you be describing something
which is new to Leopard? I should repeat my tests under 10.5, it is
possible one of these approaches will "just work". That isn't
necessarily a solution since I would have to persuade the client to
upgrade a pile of old G5 systems, but I should find out if this
problem is only on Tiger.
re: QT flaw
The supposition that QuickTime is fundamentally flawed is not
accurate. If you had time to explore, I would point you in the
direction of the QT Broadcaster interface and the sample code
available for receiving (and parsing) RTSP/RTP streams. If you
don't have time, don't go down this path - the API is cryptic (at
best) and very poorly documented.
Today I agree with you, my jumped-to conclusion isn't justified.
Sorry, I was feeling a bit frustrated last night. There is surely
some way to get this to work by using the QuickTime C APIs directly,
but some subtlety involved in streaming just isn't being handled by
the Cocoa APIs, at least not on 10.4. However, other than doing some
tests on 10.5, I have to set this aside due to time constraints.
I've got something deliverable now, hopefully I'll have a chance to
figure out how to do it right later.
Thanks!
Bob
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