<html><div style='background-color:'><P><BR>Hi <FONT size=2>Mayank,</FONT></P>
<DIV><FONT size=2></FONT>
<DIV class=RTE><FONT size=2>Sorry for the delay. Here is my thoughts on this:</FONT></DIV>
<DIV class=RTE><FONT size=2>1) After you start RTSP. you&nbsp;open&nbsp;audio and&nbsp;video&nbsp;RTP&nbsp;channels.</FONT></DIV>
<DIV class=RTE><FONT size=2>2) You start your&nbsp;audio and video encoding&nbsp;engine.</FONT></DIV>
<DIV class=RTE><FONT size=2>3)&nbsp;After you get first video frame then start to send video and audio frames. This way you will have prefect a/v sync. </FONT></DIV>
<DIV class=RTE><FONT size=2>4) The video channel time stamp is calc use 90000Hz scale.&nbsp;And&nbsp;audio is use 8000&nbsp;Hz.</FONT></DIV>
<DIV class=RTE><FONT size=2>5) Also&nbsp;you need make sure to&nbsp;use system time to&nbsp;determine the timestamp not&nbsp;use video frame time or audio&nbsp;frame time in case of lose frames.</FONT></DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE><FONT size=2>Hope that help!</FONT></DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE><FONT size=2>Jingyi Hu</FONT>&nbsp;&nbsp;</DIV>
<P class=RTE><BR><BR></P>
<DIV></DIV>
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<DIV></DIV>From:&nbsp;&nbsp;<I>mayank agarwal &lt;may_ank77@yahoo.com&gt;</I><BR>Reply-To:&nbsp;&nbsp;<I>streaming@videolan.org</I><BR>To:&nbsp;&nbsp;<I>streaming@videolan.org</I><BR>Subject:&nbsp;&nbsp;<I>[streaming] Re: RTSP doubts</I><BR>Date:&nbsp;&nbsp;<I>Mon, 4 Jun 2007 20:33:03 -0700 (PDT)</I><BR>&gt;Hi Hu,<BR>&gt;Thanks for your reply.<BR>&gt;<BR>&gt;Actually i want to develop remote target control<BR>&gt;system and in that i have to use RTSP.i have two<BR>&gt;doubts in RTSP:<BR>&gt;<BR>&gt;1.how to resolve time lag between original audio/video<BR>&gt;playing and RTSP client.<BR>&gt;<BR>&gt;Regards,<BR>&gt;Mayank<BR>&gt;<BR>&gt;<BR>&gt;--- Jingyi Hu &lt;jhu2000@hotmail.com&gt; wrote:<BR>&gt;<BR>&gt;<BR>&gt;---------------------------------<BR>&gt;<BR>&gt;<BR>&gt;it need have a configurable parameter to control A/V<BR>&gt;delay if the delay is linear.<BR>&gt;<BR>&gt;Jingyi 
Hu<BR>&gt;<BR>&gt;<BR>&gt;<BR>&gt;<BR>&gt;---------------------------------<BR>&gt;<BR>&gt;From:&nbsp;&nbsp;mayank agarwal &lt;may_ank77@yahoo.com&gt;<BR>&gt;Reply-To:&nbsp;&nbsp;streaming@videolan.org<BR>&gt;To:&nbsp;&nbsp;streaming@videolan.org<BR>&gt;Subject:&nbsp;&nbsp;[streaming] RTSP doubts<BR>&gt;Date:&nbsp;&nbsp;Mon, 4 Jun 2007 05:51:36 -0700 (PDT)<BR>&gt; &gt;Hi all,<BR>&gt; &gt;i have following doubts regarding RTSP.<BR>&gt; &gt;<BR>&gt; &gt;:how to resolve time lag between audio/video plating<BR>&gt; &gt;and RTSP clinet.<BR>&gt; &gt;<BR>&gt; &gt;Regards,<BR>&gt; &gt;Mayank<BR>&gt; &gt;<BR>&gt; &gt;<BR>&gt; &gt;<BR>&gt; &gt;____________________________________________________________________________________<BR>&gt; &gt;Be a better Globetrotter. Get better travel answers<BR>&gt;from someone who knows. Yahoo! Answers - Check it out.<BR>&gt; 
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