Thanks Nanang, you are right about PJMEDIA_MEM_NO_LOOP. Your message helps me understand why i heard some bytes replayed. Thanks! However, I am still not able to figure out how to play an audio data stream (stored in buffers) to a port associated with a call. If i create a mem player for each audio buffer, i would hear the silence between each audio buffer. It seems to me i am trying to do this in a wrong way. Is there a better way to do this? thanks a lot! -Jessica > Date: Wed, 25 Jun 2008 19:38:02 +0700> From: nanang@xxxxxxxxx> To: pjsip at lists.pjsip.org> Subject: Re: Play buffer to a port associated with a call> > Hi Jess,> > Not sure what you want to achieve, but normally you should create mem> player port for each audio. Last few bytes replayed sounds like length> inconsistency among audio's put in the buffer. Other possibility is> PJMEDIA_MEM_NO_LOOP option is not set when creating memplayer.> > Regards,> nanang> > > 2008/6/25 vopjessie <jessievop at hotmail.com>:> > Hi Nanang, thanks for the message again. It sounds like the last a few bytes> > are replayed. You are right. I was actually not sure if the way i am doing> > is the right way to play data in a buffer to a port associated with a call.> > Is there a better way to do it?> >> > thanks a lot> >> > Jessica> >> >> Date: Wed,25 Jun 2008 18:15:54 +0700> >> From: nanang at pjsip.org> >> To: pjsip at lists.pjsip.org> >> Subject: Re: [pjsip] Play buffer to a port associated with a call> >>> >> Hi Jess,> >>> >> Could you describe more detail on "I can hear the audio, but it> >> doesn't sound correct", did it play correct audio but then continued> >> with previous audio? or audio was played slower/faster? IMHO, it is> >> rather unusual idea to replace the memplayer's audio buffer in EOF> >> callback since you should make sure that the clock rate, channel> >> number, and PCM length must be exactly same.> >>> >> Regards,> >> nanang> >>> >>> >> 2008/6/25 vopjessie <jessievop at hotmail.com>:> >> > I need to play audio data in a buffer to a sip inbound or outbound. The> >> > following steps are what I am doing:> >> >> >> > - call pjmedia_conf_create() to create a conference bridge> >> > - call pjmedia_mem_player_create() to create a port for the audio buffer> >> > - call pjmedia_mem_player_set_eof_cb() to register a call back> >> > - call pjmedia_conf_add_port() to add the port associated with the sip> >> > call> >> > (inbound or outbound) to the conference bridge> >> > - call pjmedia_conf_add_port() to add the port associated with the audio> >> > buffer the same conference bridge> >> > - call pjmedia_conf_connect_port() to connect the port associated with> >> > the> >> > audio buffer to the port associated with the sip call (inbound or> >> > outbound)> >> > - call pjmedia_null_port_create() to create a null port> >> > - call pjmedia_master_port_create() to create a master port with the> >> > null> >> > port as the upstream and the master port obtained from the conference> >> > bridge> >> > as the downstream> >> > - call pjmedia_master_port_start() to start the master port created in> >> > the> >> > last step> >> >> >> > I can hear the audio, but it doesn't sound correct. Since i fill the> >> > audio> >> > data to the buffer every time the call back function is called, i write> >> > the> >> > data filled in the audio buffer to a file in the call back function, the> >> > audio data in the file are correct. Does anyone know if i have done> >> > anything> >> > wrong.> >> >> >> > thanks in advance> >> >> >> > -Jessica> >> >> >> > ________________________________> >> > "?????????" ?????> >> > _______________________________________________> >> > 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> >> >> >> >> >> _______________________________________________> >> 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> >> >> > ________________________________> > ???Hotmail???????? Windows Live Mail? ?????> > _______________________________________________> > 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> >> >> _______________________________________________> 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 _________________________________________________________________ ?????????????MSN????TA????? http://im.live.cn/emoticons/?ID=18 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080626/cb478c9d/attachment-0001.html
