2009/5/20 Benny Prijono <bennylp at teluu.com> > 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. > Maybe a stupid question but... what is 'talksprut'? > > > >> 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). > This didn't solve it. I've also tried changing the jitter buffer size but it neither worked (in fact, I don't know which buffer size I should use, in case this is the way to solve it). Dropping --auto-loop neither worked. But, is this issue just happening to me or is a general problem (I mean playing a WAV file in a pjsua session and getting choppy audio)? Sorry if my questions seem so stupid, but I'm a completely newbie (as you may have already noted). Any help or suggestion is so much appreciated. Thanks for your time, Javi > > cheers > Benny > > > >> >> Thanks for your help. >> >> Regards, >> Javi >> >> > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090521/e9c8870f/attachment-0001.html>
