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Re: QuickTime and SMIL

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From: andrew_kirkpatrick@wgbh.org
Date: Jun 5, 2003 11:37AM

Sarah,
What Jared said sounds good. Additional information: my client is able to stream on port 554 from other servers (apple). I have heard that the QT
client may try to negotiate with the port 80 server if there is any problem with the port 554 stream, which could explain the difficulty.

You should look at hint tracks (I assumed you did have one but am questioning that assumption):
http://www.apple.com/quicktime/tools_tips/tutorials/hinttracks.html

AWK

6/5/2003 12:48:17 PM, Jared Smith < <EMAIL REMOVED> > wrote:

>Sarah-
>
>Both video and captions work fine for me on Windows XP in both
>Netscape 7 and IE6. However, if the client is not capable of receiving
>video streams through the rtsp port 554, then it doesn't work. This is
>commonly caused if the user uses proxy servers or firewalls that
>restrict rtsp data. You can fix this by setting your Quicktime server
>to allow streaming on port 80. This will fix the problem for just
>about everyone, even if they have a firewall. Unfortunately, this only
>works if the Quicktime server is not acting as a Web server (which
>also uses port 80) and I noticed that your QT server has Apache Web
>server installed. For this to work, you will have to turn off Apache
>or change the port that it uses.
>
>It seems to me that the problem does not lie in your SMIL, but in the
>ability for your QT streams to bypass firewalls and proxies.
>
>Nice video, by the way.
>
>Jared Smith
>WebAIM (Web Accessibility In Mind)
>Center for Persons with Disabilities
>Utah State University
>
>
>***************
>On Wednesday, June 04, 2003 you sent:
>SH> Hello! I am working on a captioning project for some Web videos. We are using MAGpie <http://ncam.wgbh.org/webaccess/magpie/>; to generate the
captions and the SMIL files (thanks, NCAM!). It's all
>SH> pretty straightforward, but I'm having trouble getting the video/captions to play on Windows XP in either Netscape 7 or IE 6.
>
>SH> Here's the URL of the test page:
>
>SH> <http://www.dartmouth.edu/~shorton/smil/>;
>
>SH> and here's the SMIL code:
>
>SH> <smil xmlns:qt="http://www.apple.com/quicktime/resources/smilextensions" xmlns="http://www.w3.org/TR/REC-smil" qt:time-slider="true"
qt:autoplay="true">
>SH> <head>
>SH> <meta name="title" content="Academic Success for Dartmouth College Students: Time Management" />
>SH> <meta name="author" content="Academic Skills Center at Dartmouth College" />
>SH> <meta name="copyright" content="Dartmouth College" />
>SH> <layout>
>SH> <root-layout height="330" width="330" background-color="black" />
>SH> <region height="240" width="320" background-color="black" left="5" top="5" id="videoregion" />
>SH> <region height="60" width="320" background-color="white" left="5" top="255" id="textregion" />
>SH> </layout>
>SH> </head>
>SH> <body>
>SH> <par dur="0:16:42.30">
>SH> <video alt="Time Management" dur="0:16:42.30" region="videoregion" src="rtsp://quicktime.dartmouth.edu/~cc/smil/TM.mov" />
>SH> <textstream alt="English captions for Time Management" dur="0:16:42.30" region="textregion" src="TM.txt" />
>SH> </par>
>SH> </body>
>SH> </smil>
>
>SH> Any help would be much appreciated!
>
>SH> Thanks!
>SH> Sarah Horton
>SH> Dartmouth College
>
>
>SH> ----
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>
>
>***************
>
>
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