Hannes, you may have a look at RFC5168 (http://tools.ietf.org/html/rfc5168), which describes sending and processing of picture fast update command in SIP INFO (actually supported by linphone). Cheers Wolfgang On Apr 24, 2014 4:55 PM, "Hannes Lechner" <h.lechner at ognios.com> wrote: > Hi! > > > > whenever I make a video call with pjsip to a grandstream-phone (using > H.264) I need to make sure that the video?s content I?m sending (usually > webcam) changes substantially (e.g. move my hand directly in front of the > camera so it gets pretty dark) to start the stream at the remote side > (grandstream). this is true for pjsip on windows (pjsua) as well as on > android (CSipSimple)? > > once the video-stream starts showing on the remote side, it works > flawlessly? > > > > (when I call from pjsip to e.g. linphone on windows the video starts > automatically every time) > > > > any ideas on how to trigger that ?initial spark? somehow automatically?! > > any special H.264 parameters for the grandstream? (I tried changing > pjsip?s H.264 preferences in ffmpeg_vid_codecs.c ? but it didn?t help so > far?) > > > > Thanks, > > Hannes > > _______________________________________________ > 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/20140428/4a766902/attachment.html>
