Re: [Linphone-users] pixelated decoded video on Ubuntu 13.04

[Guillaume Beraudo]

Hello,

Have you tried vp8?

Install libvp8 dev before compiling linphone.


Guillaume

On Wed, Oct 09, 2013 at 02:04:24AM -0300, Daniel Noguchi wrote:
> Hello all,
> 
> I'm trying to use linphone on Ubuntu 13.04, but I am experiencing some video
> issues.
> 
> First I've tried to use the linphone package for this distribution, but the
> camera didn't work. On other applications (like 'cheese' for instance) the
> video stream was fine, but when using linphone all I got was a black screen.
> 
> Then, I've tried to use the package from the linphone PPA (from
> https://launchpad.net/~linphone/+archive/release). This seems to fix the
> video,
> but when calling another linphone user (on a ubuntu 12.10 machine), the
> decoded
> video stream appeared pixelated or lacking quality. I am using the H263-1998
> codec.
> 
> When using linphone on Ubuntu 12.04 machines the quality using the same
> codec was very good.
> 
> I've tried compiling linphone versions 3.5.0, 3.5.2, 3.6.0 and 3.6.1.
> 3.5.x versions had the camera issue (black screen)
> 3.6.x worked alright, _but_ when making a call the decoded (received) video
> was
> pixelated.
> 
> I've tried other codecs (H263 only, x-snow, MP4V-ES) but they either did't
> work
> (showed no video) or presented a pixelated image.
> 
> Does anybody have any idea on why is this happening? On the other machine
> (Ubuntu 12.04 or ubuntu 12.10), the decoded image looks fine.
> 
> If anybody has any idea or could point me to the right direction I'd be much
> appreciated!
> 
> Here are some more information about my setup:
> 
> uname -a
> Linux ubuntu 3.8.0-19-generic #29-Ubuntu SMP Wed Apr 17 18:16:28 UTC 2013
> x86_64 x86_64 x86_64 GNU/Linux
> 
> Ubuntu dist: 13.04
> --
> Daniel Noguchi

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