2009/5/20 Javier G?lvez Guerrero <javier.galvez.guerrero at gmail.com> > Hi, > > Thanks a lot for your answers. They have been very helpful. > > I tried pjsua and recommended options as Roman suggested and it worked for > what I needed (with an issue I'll comment next). I assume that if I'd like > to implement a program myself which allowed me to do what I asked for, then > I should use PJSUA-LIB API. Anyway, in case I needed to use simpleua, I > guess I could see in the pjsua source code what is used to map a file as the > audio source (pjmedia master port?). > > So, although I succeeded in establishing a SIP/RTP session between two > hosts and stream a wav audio file, in the receiver side I get sound in a > very choppy way. I tried changing sender and receiver hosts, but got the > same results. Wireshark show me that all RTP packets are sent (all sequence > numbers are received). However, some RTP packets are marked. Could this be > the problem? > > RTP packets are marked if they are the start of talksprut, it shouldn't be a problem. > Sender side > # ./pjsua-i686-pc-linux-gnu --play-file > /home/dulceangustia/Desktop/file.wav --auto-answer 200 --auto-play > --auto-loop --no-tcp > > Receiver side > # ./pjsua-i686-pc-linux-gnu sip:147.83.47.179:5060 > > I tried with mono 8kHz and 16 kHz sampled audio files (WAV) and specyfing > it in the command line but got the same choppy audio. Note that the file is > correctly encoded as it's properly played in the local host. Also note that > the sound gaps appear randomly, in every try but not in the same place in > the audio file. Both computers are connected through a LAN network with > UTP/Ethernet cables. > > Any idea about what this issue can be caused for? > > It could be the jitter. Try with adding --null-audio on the sender side to see if it helps (and this would be more similar to your requirement too). cheers Benny > > Thanks for your help. > > Regards, > Javi > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090521/e5d686ce/attachment.html>
