[Asterisk-video] app_mp4 fixed video playback

[Sergio Garcia]

---------- Original Message ----------------------------------
From: Klaus Darilion <klaus.mailinglists at pernau.at>
Reply-To: Development discussion of video media support in Asterisk<asterisk-video at lists.digium.com>
Date:  Fri, 31 Aug 2007 08:11:02 +0200
>
>
>Sergio Garcia schrieb:
>  > The problem is that I don't want to answer the phone without knowing
>> if there is anyone at the other side. The idea I have is implment an
>> h324m_gw_answer that answer the channel and wait for a control
>> command (probably AST_CONTROL_VIDUPDATE) to return control..
>
>What about options for h324m_gw, e.g.:
>  'a': answer the incoming call immediately. This is
>       useful in video applications where the incoming
>       call will be answered for sure.
>
>  'w': wait for H245 channel negotiation. When using this option,
>       h324m_gw starts the pseudo channel after H245 handshake. Thus,
>       the pseudo channel can start playback of audio and video
>       immediately without loosing frames. Note: 'w' implies 'a'

That could be another option, but the  I don't see "a" option it. 
I mean, I don't see in which case you would like to answer the phone without
waiting for the h245 to finish. 
The only case I would be if you have something that is not instant in the local
channel (like for example grabbing caller user data) that would take a few seconds
so you want to run the h245 negotiation and the user data process in parallel.
But then you'll have to synchronize both channels for waiting each other..

Perhaps a mixed solution could be good here.. and implementing a AST_CONTROL_VIDUPDATE
to signal the 3g phone is also somehting that we need.. 

BR
Sergio