[asterisk-dev] videop, was: Opus and VP8

[Olle E. Johansson]

28 maj 2013 kl. 23:41 skrev Hans Witvliet <asterisk at a-domani.nl>:

> -----Original Message-----
> From: Olle E. Johansson <oej at edvina.net>
> Reply-to: Asterisk Developers Mailing List
> <asterisk-dev at lists.digium.com>
> To: Asterisk Developers Mailing List <asterisk-dev at lists.digium.com>
> Cc: Olle E. Johansson <oej at edvina.net>
> Subject: Re: [asterisk-dev] Opus and VP8
> Date: Tue, 28 May 2013 08:30:33 +0200
> 
> 27 maj 2013 kl. 23:10 skrev Hans Witvliet <asterisk at a-domani.nl>:
> 
>> -----Original Message-----
>> 
>> ....
>> Any problem with including the format parts of this patch into Asterisk?
>> Asterisk has limited support for H.264 video. I don't suppose Asterisk
>> comes with a license for a H.264 video playback (let alone encoding).
>> ....
>> 
>> What do you mean by "limited support for H.264 video" ????
>> For quite some time i use asterisk and H.264/SVC clients without any
>> problems.
> 
> Asterisk has no video codecs, we only have support for passthrough.
> 
> -----Original Message-----
> 
> Sure?
> 
> http://www.voip-info.org/wiki/view/Asterisk+video claims:
> "Video in Asterisk The video features in Asterisk 1.4 include:
> -pass-through calling
> -playback (expect some delay)
> -record
> -video IVR
> -voicemail (recording and playback, with difficulties for greeting
> messages)
> 
> Some channels have support for video calls in Asterisk:
> -SIP
> -IAX2 "
> 
> Is the wiki mis-informed, are these dropped features since 1.4?

No, all of that is just passing through. We do not use a codec module to transcode.
You can't set up a call between one H.261 and one H.264 phone or
playback H.264 video files to a H.261 video call. You can not record a video
in a H.261 call to a H.264-encoded file. 

The codecs translate - encode or decode - media in Asterisk.

/O