Hi, For video there is no conference bridge, the video device is connected directly to the video stream. There is a video tee port object which allows the camera device to feed both a video preview window and the outgoing stream. Audio and video are recorded separately and have separate stream objects and RTP streams. Synchronization is theoretically possible at the receiving endpoint using RTP timestamps, but I don't think PJSIP implements any stream synchronization (I could be wrong). Bill On 5/29/2014 12:42 AM, Jason Chen ??? wrote: > > Hi all > > I've read Media Flow, there is the > diagram(http://trac.pjsip.org/repos/wiki/media-flow): > > I have some question about video call. > > 1, I can understand it in the voice call, but when make a video call, > does it work in the same way? > > 2, Video calls, including images and sound. Are image and sound are > recorded separately? > > 3, How sound and image are synchronized > > Best Regards, > > jason.chen > > > > _______________________________________________ > 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/20140529/5c1a3bfd/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/png Size: 14964 bytes Desc: not available URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20140529/5c1a3bfd/attachment.png>