Hi, 

 

I've managed to solve the problem. 

 

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.

 

Sincerely,

 

Eren

 

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Eren AYKOC
Sent: Wednesday, November 12, 2008 6:56 PM
To: ccrtp-devel@gnu.org
Subject: [Ccrtp-devel] 1/2 of packets are droped 

 

Hi,

 

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. 

 

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. 

 

My code is nearly the same as the demo application audiotx.cpp except
the audio source mechanism. 

 

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.

 

I'm using MS Visual Studio 6.0 (sp6) on a Windows XP Prof (sp3) machine.


 

I'd be glad if you may help me.

 

Sincerely,

 

Eren AYKOC

_______________________________________________
Ccrtp-devel mailing list
Ccrtp-devel@gnu.org
http://lists.gnu.org/mailman/listinfo/ccrtp-devel

Reply via email to