[Asterisk-video] h324m_handshake (was: app_mp4 fixed video playback)

klaus.mailinglists at pernau.at klaus.mailinglists at pernau.at
Mon Sep 3 14:16:35 CDT 2007


> The case of 3G calling to a sip phone is a bit more complicated, the 3g
> call is received and the dial is launched in the pseudo channel. When the
> sip client answer it start sending audio and video (which is going to be
> lost) and receiving no data and the h245 negotiation begins.
> When the 3G call is correctly negotiated and the media is correctly
> bridged to the sip client and it recieves correctly firs phone I frame.
> The problem is, again, the 3g phone will start receiving the sip client
> video from a random point and the video will be mangled till the sip
> client decides to send another iframe.

I made some test calls (nokia 6630 and eyebeam) and quality is IMO
acceptable although in the beginning the video misses the Iframe (some
black zones in the video).

klaus




More information about the asterisk-video mailing list