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<p class=MsoNormal><span lang=EN-US>Hi all :<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> I have made a test on window
mobile for openRTSP and I also add the “-q” option which will print
the qos message . And i got the print message showed that I have lost about 30%
packets . I have extended the socket receive buffer to 2,000,000 and I also used
the live555 media server included in the source code.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:5.25pt'><span lang=EN-US> The
strange thing is that if I transport only audio stream like “mp3 file”
the packet lost was very small ,but if I transport both audio and video
stream like “mp4,mpg files” the packet loss was really big. <o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:5.25pt'><span lang=EN-US> And I found
that a 6M mpg file only transport 37 seconds (sdp message “</span><span
lang=EN-US style='font-size:10.0pt;font-family:NSimSun;color:red'>a=range:npt=0-37.160</span><span
lang=EN-US>”) but a 5M mp3 file transport 301 seconds in the same network
environment.<o:p></o:p></span></p>
<p class=MsoNormal style='text-indent:5.25pt'><span lang=EN-US> My live555
version is 2009,9,28 and I have test the lib on pc it worked really good . Any
advice for the question ? please help me out of the strange problem !<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Thank in advance. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Following are the sdp message I got :<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>1.<span style='color:red'>Mpg file(size 6M)</span><o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>v=0<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>o=-
924739507 1 IN IP4 192.168.1.100<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>s=MPEG-1
or 2 Program Stream, streamed by the LIVE555 Media Server<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>i=pict.mpg<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>t=0
0<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=tool:LIVE555
Streaming Media v2009.09.28<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=type:broadcast<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=control:*<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=range:npt=0-37.160<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=x-qt-text-nam:MPEG-1
or 2 Program Stream, streamed by the LIVE555 Media Server<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=x-qt-text-inf:pict.mpg<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>m=video
0 RTP/AVP 32<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>c=IN
IP4 0.0.0.0<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=control:track1<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>m=audio
0 RTP/AVP 14<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>c=IN IP4
0.0.0.0<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif";
color:#17365D'>a=control:track2</span><span lang=EN-US style='font-size:10.0pt;
font-family:"Cambria","serif";color:#17365D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";
color:#17365D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";
color:red'>2.Mp3 file(size 5M)<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>v=0<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>o=-
5850143118 1 IN IP4 192.168.1.100<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>s=MPEG-1
or 2 Audio, streamed by the LIVE555 Media Server<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>i=test3.mp3<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>t=0
0<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=tool:LIVE555
Streaming Media v2009.09.28<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=type:broadcast<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=control:*<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=range:npt=0-301.840<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=x-qt-text-nam:MPEG-1
or 2 Audio, streamed by the LIVE555 Media Server<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>a=x-qt-text-inf:test3.mp3<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>m=audio
0 RTP/AVP 14<o:p></o:p></span></p>
<p class=MsoNormal align=left style='text-align:left;text-autospace:none'><span
lang=EN-US style='font-size:10.0pt;font-family:"Cambria","serif";color:#17365D'>c=IN
IP4 0.0.0.0<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Cambria","serif";
color:#17365D'>a=control:track1</span><span lang=EN-US style='font-family:"Cambria","serif";
color:#17365D'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Best regards,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:"Lucida Calligraphy"'>Kevin
Liu<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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