RE: 1/2 of packets are droped - Solved
"Eren AYKOC" <[email protected]> Fri, 14 Nov 2008 09:38:04 +0200
| Newsgroups | gmane.comp.gnu.ccrtp.devel |
|---|---|
| Message-ID | <[email protected]> |
This is a multi-part message in MIME format. --===============1129839431== Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C9462B.EE10EB7F" Content-class: urn:content-classes:message This is a multi-part message in MIME format. ------_=_NextPart_001_01C9462B.EE10EB7F Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi,=20 =20 I've managed to solve the problem.=20 =20 One cycle in the while loop of SingleThreadRTPSession::run() was taking nearly 60 milliseconds and therefore every 1 of 2 packets become expired. I saw that setCancel method (which calls Thread::sleep(1)) made the thread sleep much more than 1 millisecond. When I changed Thread::yield() method to sleep(0) in commoncpp\src\thread.cpp (line 1198) my problem was solved. =20 Sincerely, =20 Eren =20 From: [email protected] [mailto:[email protected]] On Behalf = Of Eren AYKOC Sent: Wednesday, November 12, 2008 6:56 PM To: [email protected] Subject: [Ccrtp-devel] 1/2 of packets are droped=20 =20 Hi, =20 I'm trying to build an application using ccRTP (1.6.2) and I'm having some problems. My application is a SIP IVR application and right now I'm using PCMU payload.=20 =20 In my -Thread and TimerPort derived- thread class's run() method, my application is sending -30ms long (240 bytes)- audio packets to destination and nearly for the half of the packets, my -SingleThreadRTPSession derived- socket class's onExpireSend method is triggered. When I sniff the network with Wireshark for UDP packets I don't see the dropped ones and the sound is distorted on the destination side.=20 =20 My code is nearly the same as the demo application audiotx.cpp except the audio source mechanism.=20 =20 In the mailing list archives I've found a similar problem (http://lists.gnu.org/archive/html/ccrtp-devel/2003-03/msg00000.html) but the patch for this bug is already in my copy of ccRTP library. =20 I'm using MS Visual Studio 6.0 (sp6) on a Windows XP Prof (sp3) machine. =20 I'd be glad if you may help me. =20 Sincerely, =20 Eren AYKOC ------_=_NextPart_001_01C9462B.EE10EB7F Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"> <meta name=3DGenerator content=3D"Microsoft Word 12 (filtered medium)"> <style> <!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} @font-face {font-family:Tahoma; panose-1:2 11 6 4 3 5 4 4 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri","sans-serif";} a:link, span.MsoHyperlink {mso-style-priority:99; color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:purple; text-decoration:underline;} p.MsoAcetate, li.MsoAcetate, div.MsoAcetate {mso-style-priority:99; mso-style-link:"Balloon Text Char"; margin:0cm; margin-bottom:.0001pt; font-size:8.0pt; font-family:"Tahoma","sans-serif";} span.BalloonTextChar {mso-style-name:"Balloon Text Char"; mso-style-priority:99; mso-style-link:"Balloon Text"; font-family:"Tahoma","sans-serif";} span.EmailStyle19 {mso-style-type:personal; font-family:"Calibri","sans-serif"; color:windowtext;} span.EmailStyle20 {mso-style-type:personal-reply; font-family:"Calibri","sans-serif"; color:#1F497D;} .MsoChpDefault {mso-style-type:export-only; font-size:10.0pt;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 70.85pt 70.85pt 70.85pt;} div.Section1 {page:Section1;} --> </style> <!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--> </head> <body lang=3DEN-US link=3Dblue vlink=3Dpurple> <div class=3DSection1> <p class=3DMsoNormal><span style=3D'color:#1F497D'>Hi, = <o:p></o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'><o:p> </o:p></span></p> <p class=3DMsoNormal><span style=3D'color:#1F497D'>I’ve managed to = solve the problem. <o:p></o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'><o:p> </o:p></span></p> <p class=3DMsoNormal><span style=3D'color:#1F497D'>One cycle in the = while loop of SingleThreadRTPSession::run() was taking nearly 60 milliseconds and therefore every 1 of 2 = packets become expired. I saw that setCancel method (which calls Thread::sleep(1)) made = the thread sleep much more than 1 millisecond. When I changed = Thread::yield() method to sleep(0) in commoncpp\src\thread.cpp (line 1198) my = problem was solved.<o:p></o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'><o:p> </o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'>Sincerely,<o:p></o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'><o:p> </o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'>Eren<o:p></o:p></span></p> <p class=3DMsoNormal><span = style=3D'color:#1F497D'><o:p> </o:p></span></p> <div> <div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt = 0cm 0cm 0cm'> <p class=3DMsoNormal><b><span = style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>= </b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> [email protected] [mailto:[email protected]] <b>On = Behalf Of </b>Eren AYKOC<br> <b>Sent:</b> Wednesday, November 12, 2008 6:56 PM<br> <b>To:</b> [email protected]<br> <b>Subject:</b> [Ccrtp-devel] 1/2 of packets are droped = <o:p></o:p></span></p> </div> </div> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>Hi,<o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>I’m trying to build an application using = ccRTP (1.6.2) and I’m having some problems. My application is a SIP IVR = application and right now I’m using PCMU payload. <o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>In my -Thread and TimerPort derived- thread = class’s run() method, my application is sending -30ms long (240 bytes)- audio = packets to destination and nearly for the half of the packets, my = -SingleThreadRTPSession derived- socket class’s onExpireSend method is triggered. When I = sniff the network with Wireshark for UDP packets I don’t see the dropped = ones and the sound is distorted on the destination side. <o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>My code is nearly the same as the demo application audiotx.cpp except the audio source mechanism. <o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>In the mailing list archives I’ve found a = similar problem (<a href=3D"http://lists.gnu.org/archive/html/ccrtp-devel/2003-03/msg00000.ht= ml">http://lists.gnu.org/archive/html/ccrtp-devel/2003-03/msg00000.html</= a>) but the patch for this bug is already in my copy of ccRTP = library.<o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>I’m using MS Visual Studio 6.0 (sp6) on a = Windows XP Prof (sp3) machine. <o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>I’d be glad if you may help = me.<o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>Sincerely,<o:p></o:p></p> <p class=3DMsoNormal><o:p> </o:p></p> <p class=3DMsoNormal>Eren AYKOC<o:p></o:p></p> </div> </body> </html> ------_=_NextPart_001_01C9462B.EE10EB7F-- --===============1129839431== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Ccrtp-devel mailing list [email protected] http://lists.gnu.org/mailman/listinfo/ccrtp-devel --===============1129839431==--