Re: [Linphone-developers] Contract Project: 720p and 1080p support

[Christophe Deschamps]

> I just wish that the L16 codec would work properly and I'd have uncompressed 
> audio to go with the nice video. The VOIP codecs are pretty poor for 
> non-speech content.


opus seems a good option :-) 


On Dec 20, 2012, at 10:00 PM, Jonathan Rosser wrote:

> On 20/12/12 20:52, Nathan Stratton wrote:
>> On Thu, Dec 20, 2012 at 3:16 AM, Jonathan Rosser <
>> address@hidden> wrote:
>> 
>>> 
>>> This is really quite trivial. Search for ENABLE_HD in
>>> coreapi/linphonecore.c. It's a one line patch to turn that on.
>>> 
>> 
>> :) It looks quite trivial, but have you tried it? There are other issues of
>> the code, if you ENABLE_HD you can select say 720p, but the encoded video
>> is NOT 720p.
>> 
> 
> Yes - I am using it in a LAN scenario daily. I've heavily modified msx264 and 
> we get low latency, 10-30Mbits of traffic and excellent quality video from 
> semi-pro and professional video cameras. The coding quality is good enough 
> that the limiting factor is the quality of the sensor/optics on the camera.
> 
> You need to do mods to msx264 to enable HD1080 encoding over a certain 
> bitrate threshold - that and ENABLE_HD should get you going with the existing 
> code quite easily. It is then necessary to specify the bitrate in the video 
> codecs dialog to be greater than the threshold you set for 1080 encoding in 
> msx264.
> 
> I just wish that the L16 codec would work properly and I'd have uncompressed 
> audio to go with the nice video. The VOIP codecs are pretty poor for 
> non-speech content.
> 
> Hope this helps,
> Jon.
> 
> 
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