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Re: [Linphone-developers] video call on raspberry pi

From: Russell
Subject: Re: [Linphone-developers] video call on raspberry pi
Date: Tue, 2 Jun 2015 11:43:42 +0800


this is what I got on gdb session, any idea that I can get a full stacktrace?

Program received signal SIGABRT, Aborted.
0x76d1a8dc in raise () from /lib/arm-linux-gnueabihf/
(gdb) bt
#0  0x76d1a8dc in raise () from /lib/arm-linux-gnueabihf/
#1  0x76d1e65c in abort () from /lib/arm-linux-gnueabihf/
#2  0x00000120 in ?? ()
#3  0x00000120 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

On Mon, Jun 1, 2015 at 6:50 PM, Guillaume Bienkowski <address@hidden> wrote:
Well, there’s no automatic way to use the OMX driver of the RasPi through V4L, so no, we don’t use it (yet).
If you feel like contributing to the effort of adding a mediastreamer2 plugin for it, be our guest!

Also, your problem with XV is that you must be using a non-accelerated desktop which does not support XV as graphics acceleration. 
Check out how to enable it in your distribution.

The problem of python on RPi2 is strange though. Could you run it into GDB and grab a stracktrace to have an idea of the problem ?

Guillaume Bienkowski

Le 1 juin 2015 à 12:39, Russell <address@hidden> a écrit :

There is a saying that the video lags because linphone does not "use the PI hardware acceleration for video encode/decode". Is that (still) true? maybe that is what causes the problem of ubuntu mate on raspberry pi.

On Mon, Jun 1, 2015 at 6:35 PM, Russell <address@hidden> wrote:

Is it possible to make a video call on the raspbian system, I tested it with linphone 3.8.2 and the video preview windows just shows a black screen (ortp-error-Could not find suitable format or Xv port to work with). The ubuntu mate system installed on raspberry pi 2 does show video preview, but it lag a pretty long time.

linphone python claims to be working on raspberry pi, but when I enable video on the other end (a linphone-android app), the end running linphone python aborted without much information.


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