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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Kc ooi<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If you use the current CVS you can use the existing CIF definition and add<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'>codec.SetMaxBitRate()<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>to <yourEndpoint>::OpenVideoChannel() <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>on the encoder side there is a call back to the codec to limit the sending bitrate to 256k (which will limit the CIF frame rate in this case) <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>on the decoder side there is a flow control request sent after the OLC to limit the remote sending to 256k<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Simon<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> h323plus-bounces@lists.packetizer.com [mailto:h323plus-bounces@lists.packetizer.com] <b>On Behalf Of </b>kc ooi<br><b>Sent:</b> Wednesday, July 21, 2010 6:24 PM<br><b>To:</b> h323plus@lists.packetizer.com<br><b>Subject:</b> Re: [h323plus] H264 PLUGIN In H323Plus<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p>Hi All,<o:p></o:p></p><p>Currently, I am working on H.264 codec to limit it's maximum video rate always less than 256kbps.<o:p></o:p></p><p>I use the settings as below:<br>---------------------------------------- <br>Profile: baseline profile<br>Level: 1.2 <br>resolution: CIF resolution<br>frame rate: 10fps. <o:p></o:p></p><p>However, In the H.264 Recommendation, the level 1.2 has default value maximum bit rate with 384kbps.<br>So, anyway to customize my H.264 codec (or do setting on my x264 encoder) to produce the video size <br>always less than 256kbit / sec.<o:p></o:p></p><p>Thanks.<o:p></o:p></p></div></body></html>