RE:
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>From: "Sean Wilson" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Subject: <lingo-l> streaming video
>Date: Sun, May 27, 2001, 10:20 PM
>Problems with the above:
>1). Potentailly a long time to wait for the DV file to download.
>2). How to know when to "start" the file playing/displaying so that while
>it's playing director doesn't reach the end of the file before it has
>streamed in. I want the progress to be seamless ie. NOT( play a little, DL
>some more, play that, etc. )
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That depends on the data rate. If you are willing to trade image quality
and motion for time, then you can stream directly to 56k users at around
4Kbytes/sec. That means expert compression and very low frame rates.
Higher than that, and you'll have an increasingly long preload buffer
necessary to allow continuous playback. I have some VERY low-bandwidth
video running in shockwave movies on www.ifmp.net. They're about 1.5 - 3
Kbytes/sec WITH sound.
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>Given the new Real xtra, is this a viable streaming alternative to QT?
>Reading suggests it doesn't have the ability to stream via http.
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You can do HTTP with Real, but you lose buffering, etc, after which, the
result usually plays worse than the equivalent QuickTime clip. The best
thing about Real is its server's ability to take a rather high data rate
clip and dynamically adjust the rate (dropping data) to prevailing
netclog. Outside of that, its not very interesting.
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>Also, is http streaming provided by the installation of QT, or by the .mov
>file format. I'm wondering whether now that QT5 supports MPEG video on
>Windows - and I'm probably going to have most end-users installing it -
>whether QT can stream an MPEG file? Anyone tried it?
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You'll never get data rates low enough with MPEG1 to stream over a modem
connection.
Steve Bennett
www.ifmp.net
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