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Hello,<br>
<br>
I was unable to find a detailed / concrete answer to my question, so
sorry if I haven't searched hard enough to find it... <br>
<br>
Anyways, the question is - What is the best way to implement custom
RTSP messages?<br>
I want to add a new RTSP message type, and use it to transfer a list
of files I can play from server.<br>
<br>
Is RTCP the way to do it like some mails have suggested?<br>
<br>
Thanks in advance,<br>
Aleksandar<br>
<div class="moz-signature">
<title>RT-RK @ IBC2011 Signature</title>
<p><font style="font-family: Arial,sans-serif; font-size: 12px;"><strong>Aleksandar
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Software Engineer<br>
<br>
Phone: +381-(0)21-4801-139<br>
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Mobile: +381-(0)64-31-666-82<br>
E-mail: <a href="mailto:Aleksandar.Milenkovic@rt-rk.com">Aleksandar.Milenkovic@rt-rk.com</a><br>
<br>
RT-RK Computer Based Systems LLC<br>
Fruskogorska 11<br>
21000 Novi Sad, Serbia<br>
<a href="http://www.rt-rk.com">www.rt-rk.com</a></font>
</p>
<p><font style="font-family: Arial,sans-serif; font-size: 12px;"><strong>RT-RK</strong>
invites you to visit us @ <span style="color: rgb(255, 0,
0);"><strong>IBC2011</strong></span>,
September 9-13 2011, stand <span style="color: rgb(0, 0,
255);"><strong>5.A01</strong></span>,
Amsterdam RAI.<br>
For more information please visit <a
href="http://www.bbt.rs/">www.bbt.rs</a></font></p>
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<br>
On 3/26/2012 1:58 PM, <a class="moz-txt-link-abbreviated" href="mailto:live-devel-request@ns.live555.com">live-devel-request@ns.live555.com</a> wrote:
<blockquote
cite="mid:mailman.1935.1332763128.879.live-devel@lists.live555.com"
type="cite">
<pre wrap="">Send live-devel mailing list submissions to
<a class="moz-txt-link-abbreviated" href="mailto:live-devel@lists.live555.com">live-devel@lists.live555.com</a>
To subscribe or unsubscribe via the World Wide Web, visit
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or, via email, send a message with subject or body 'help' to
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You can reach the person managing the list at
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When replying, please edit your Subject line so it is more specific
than "Re: Contents of live-devel digest..."
Today's Topics:
1. Re: RTSP server delivers HTTP 404 describe response to
certain clients (Ross Finlayson)
2. RTSP server delivers HTTP 404 describe response tocertain
clients (Shaheed Abdol)
----------------------------------------------------------------------
Message: 1
Date: Mon, 26 Mar 2012 00:55:36 -0700
From: Ross Finlayson <a class="moz-txt-link-rfc2396E" href="mailto:finlayson@live555.com"><finlayson@live555.com></a>
To: LIVE555 Streaming Media - development & use
<a class="moz-txt-link-rfc2396E" href="mailto:live-devel@ns.live555.com"><live-devel@ns.live555.com></a>
Subject: Re: [Live-devel] RTSP server delivers HTTP 404 describe
response to certain clients
Message-ID: <a class="moz-txt-link-rfc2396E" href="mailto:130340B0-DA38-416B-A167-8CA05830C1AD@live555.com"><130340B0-DA38-416B-A167-8CA05830C1AD@live555.com></a>
Content-Type: text/plain; charset="us-ascii"
</pre>
<blockquote type="cite">
<pre wrap="">I am using the StreamUCast.cpp file to run an RTSP server
</pre>
</blockquote>
<pre wrap="">
"StreamUCast.cpp" is not our file. It seems that you are working from the code for someone else's RTSP server application (that happens to be using our code). If that's the case, then perhaps you should first ask whoever it was who provided you with the "StreamUCast.cpp" file?
But anyway, you talk about getting "HTTP - 404" responses. You should not be trying to access the server using HTTP (unless you really know what you're doing, and are using RTSP-over-HTTP tunneling)? Instead, at least at first, you should be accessing the stream using RTSP only.
</pre>
<blockquote type="cite">
<pre wrap="">I have tried the RTSP client code provided in testProgs, but as expected I get the same "HTTP - 404" error in the continueAfterDESCRIBE function.
</pre>
</blockquote>
<pre wrap="">
Once again, why are you getting ***HTTP*** errors. I suggest that you first try using our (unmodified!) "testRTSPClient" application. If you continue to get HTTP (rather than RTSP) responses from your server, then there is something badly wrong with the way that you (or someone else) made use of (or modified) the LIVE555 RTSP server code, in which case I'm not going to be able to help you.
Ross Finlayson
Live Networks, Inc.
<a class="moz-txt-link-freetext" href="http://www.live555.com/">http://www.live555.com/</a>
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Message: 2
Date: Mon, 26 Mar 2012 13:58:25 +0200
From: "Shaheed Abdol" <a class="moz-txt-link-rfc2396E" href="mailto:Shaheed@scansoft.co.za"><Shaheed@scansoft.co.za></a>
To: <a class="moz-txt-link-rfc2396E" href="mailto:live-devel@ns.live555.com"><live-devel@ns.live555.com></a>
Subject: [Live-devel] RTSP server delivers HTTP 404 describe response
tocertain clients
Message-ID: <a class="moz-txt-link-rfc2396E" href="mailto:002962EA5927BE45B2FFAB0B5B5D67970A8C7B@SSTSVR1.sst.local"><002962EA5927BE45B2FFAB0B5B5D67970A8C7B@SSTSVR1.sst.local></a>
Content-Type: text/plain; charset="us-ascii"
Good morning Ross,
Firstly, thank you for the notification about the file name issue. It
seems the previous developer copied the testOnDemandRTSPServer code,
modified and saved it so a file named StreamUCast. My initial subject
line is incorrect - it should say "RTSP - 404 ...", which is generated
in the RTSPServer class - due to the RTPSink not being created in the
createNewRTPSink function.
I have poured over the FAQ and mailing list and have written my own
FramedSource class which encapsulates my live device source, and an
MP4VideoRTPSink which does nothing. I have replaced the MP4VideoRTPSink
with the MPEG4ESVideoRTPSink in the createNewRTPSink function in my
COnDemandSubsession class. This allows me to connect to my subsession,
but the frames I'm getting are not valid. I am using the unmodified
testRTSPClient and VLC to get the data for the frames. I have found a
previous issue: "Live555 Streaming from a live source", where you
instruct the developers to insert an MPEG4VideoStreamDiscreteFramer
downstream which will handle the data. I'm sure I must be a bother by
now, but a little bit more background on this would be appreciated,
since I cannot return the mp4 discrete framer from my createNewRTPSink
function. I am returning a derived DeviceSource instance which allows me
to get live data from the createNewStreamSource function. I'm not
exactly sure how to insert the MPEG4DiscreteFramer in this sequence of
filters. Should I allow my derived DeviceSource to inherit from the
discrete framer, or should I simply return the discrete framer from the
createNewStreamSource function? I do not see any method for the
FramedSource to query the OnDemandVideoInputSubsession (my own class)
for video data, and the DeviceSource class is (should be) the last
filter in the sequence.
Thank you
Regards
___________________________________
Shaheed Abdol
Web: <a class="moz-txt-link-abbreviated" href="http://www.scansoft.co.za">www.scansoft.co.za</a> <a class="moz-txt-link-rfc2396E" href="http://www.scansoft.co.za/"><http://www.scansoft.co.za/></a>
Tel: +27 21 913 8664
Cell: +27 79 835 8771
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*******************************************
</pre>
</blockquote>
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