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<title>Re: [Live-devel] doEventLoop with fWatchVariable</title>
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<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">I have written directshow filter for receiving streams.I have encapsulate playcomman.cpp in my code. I am able to play the stream I
have spawn a thread<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">startStreaming<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">{<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New""> Watch = 0<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New""> Spawn the
</span></font><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;
color:navy">Thread</span></font><font size="2" face="Courier New"><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">}<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">Thread<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">{<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New""> startPlayingStreams();<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New""> env->taskScheduler().doEventLoop(&watch)</span></font><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;
color:navy"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">}<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">In stopStreaming()<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">{<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">Watch = 1;// it force doEventLoop to exit
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="green" face="Courier New"><span style="font-size:10.0pt;font-family:"Courier New";color:green">sessionAfterPlaying();</span></font><font size="2" face="Courier New"><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">//if I use this method I successfully send and recive Teradown message.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">//If comment watch=1 then teardown response become wrong WHY ?</span></font><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">}
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">In pauseStreaming<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">{<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">Watch = 1;// it force doEventLoop to exit as well as
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">pauseMediaSession<font color="green"><span style="color:green"> ();</span></font><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">//if I use this method I successfully send and recive pause message.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Courier New"><span style="font-size:10.0pt;
font-family:"Courier New"">//If comment watch=1 then pause response become wrong WHY ?</span></font><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">}
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy">After pause streaming again I invoke
</span></font><font size="2" face="Courier New"><span style="font-size:10.0pt;font-family:"Courier New"">startStreaming but after this call bytesReads() (groupsockhelper.cpp) return -1 ?
<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="navy" face="Arial"><span style="font-size:
10.0pt;font-family:Arial;color:navy"><o:p> </o:p></span></font></p>
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<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;
font-family:Tahoma;font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma"> live-devel-bounces@ns.live555.com
[mailto:live-devel-bounces@ns.live555.com] <b><span style="font-weight:bold">On Behalf Of
</span></b>Ross Finlayson<br>
<b><span style="font-weight:bold">Sent:</span></b> Thursday, January 22, 2009 11:47 AM<br>
<b><span style="font-weight:bold">To:</span></b> <st1:PersonName w:st="on">LIVE555 Streaming Media - development & use</st1:PersonName><br>
<b><span style="font-weight:bold">Subject:</span></b> Re: [Live-devel] doEventLoop with fWatchVariable</span></font><o:p></o:p></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">I am using the fWatchVariable to notift the eventLoop to exit. (as it should be)</span></font><o:p></o:p></p>
</blockquote>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt" type="cite" cite="">
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">However if no connection is avaialble (nothing is waking the loop), this variable will not be tested and the eventLoop is blocked.</span></font><o:p></o:p></p>
</blockquote>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt" type="cite" cite="">
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;
font-family:Arial">Is there some "refresh" command to the loop that will force it to wake , so the variable can be tested?</span></font><o:p></o:p></p>
</blockquote>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><o:p> </o:p></span></font></p>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt">Yes, see http://lists.live555.com/pipermail/live-devel/2006-March/004192.html<o:p></o:p></span></font></p>
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<pre><font size="2" face="Courier New"><span style="font-size:10.0pt"><x-sigsep>-- <o:p></o:p></span></font></pre>
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<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:
12.0pt"><br>
</x-sigsep>Ross Finlayson<br>
Live Networks, Inc.<br>
http://www.live555.com/<o:p></o:p></span></font></p>
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