[mythtv] MythTV Raspberry Pi2 frontend testers

[Chris Weiland]

I'm still not able to compile natively.  I got closer by adding the
/opt/vc/include and /opt/vc/include/interface/vcos/pthreads to the includes
and /opt/vc/lib to the libraries.  That got the openmax support enabled.
However, the configure script still can't enable the OpenGL ES 2.0
support.  Even when I add /opt/vc/include/GLES2 to the includes.

In other news, I was able to run the pre-compiled 0.27-80 package.
However, playback is a little scratchy.  The audio and video are a little
stuttery.  CPU usage is ~25%.  I tried advanced, fast, and line-double
deinterlacers, none of which looked any different or improved/degraded
performance.  The jerkiness coincides with messages saying "Player(1):
Waited 102ms for video buffers" with a bunch of capital letters afterward.
I couldn't find any log prints about whether or not a deinterlacer actually
got used.

I'm running Raspbian, if that makes any difference.

Let me know if you need any more details or to run any more tests.

On Sun, Nov 29, 2015 at 4:39 AM, Lawrence Rust <lvr at softsystem.co.uk> wrote:

> On Sat, 2015-11-28 at 20:04 +0000, Thomas Mashos wrote:
> [snip]
> > I think we're getting closer. It's finding everything now but still
> failing
> > on the build. Looks like it's failing on videoout_omx.o. Build snippet
> > below. Full build log at
> >
> https://launchpadlibrarian.net/227870406/buildlog_ubuntu-wily-armhf.mythtv_2%3A0.27.5%2Bfixes.20151128.54a9cda-0ubuntu1_BUILDING.txt.gz
> >
> > In file included from /opt/vc/include/interface/vcos/vcos.h:116:0,
> >                  from
> /opt/vc/include/interface/vmcs_host/vc_dispmanx.h:33,
> >                  from /opt/vc/include/bcm_host.h:50,
> >                  from videoout_omx.cpp:14:
> > /opt/vc/include/interface/vcos/pthreads/vcos_platform.h: In function
> > 'void vcos_event_signal(VCOS_EVENT_T*)':
> > /opt/vc/include/interface/vcos/pthreads/vcos_platform.h:535:8:
> > warning: variable 'ok' set but not used [-Wunused-but-set-variable]
> >     int ok = 0;
> >         ^
> > videoout_omx.cpp: In member function 'virtual bool
> > VideoOutputOMX::CanVisualise(AudioPlayer*, MythRender*)':
> > videoout_omx.cpp:762:69: error: conditional expression between
> > distinct pointer types 'MythRenderEGL*' and 'MythRender*' lacks a cast
> >      return VideoOutput::CanVisualise(audio, m_context ? m_context :
> render);
> >                                                                      ^
> > videoout_omx.cpp: In member function 'virtual bool
> > VideoOutputOMX::SetupVisualisation(AudioPlayer*, MythRender*, const
> > QString&)':
> > videoout_omx.cpp:770:33: error: conditional expression between
> > distinct pointer types 'MythRenderEGL*' and 'MythRender*' lacks a cast
> >          m_context ? m_context : render, name);
> >                                  ^
> > videoout_omx.cpp: In member function 'virtual QStringList
> > VideoOutputOMX::GetVisualiserList()':
> > videoout_omx.cpp:777:49: error: invalid use of incomplete type 'class
> > MythRenderEGL'
> >          VideoVisual::GetVisualiserList(m_context->Type()) :
> >                                                  ^
> > In file included from videoout_omx.cpp:1:0:
> > videoout_omx.h:14:7: note: forward declaration of 'class MythRenderEGL'
> >  class MythRenderEGL;
> >        ^
> > Makefile:7130: recipe for target 'videoout_omx.o' failed
> > make[4]: *** [videoout_omx.o] Error 1
>
> Hi Thomas,
>
> Two problems:
>
> 1. The code that you have is out of date.  I recently fixed a problem
> with videoout_omx.cpp when building without OpenGLES2.
>
> 2. It appears that the macro USING_OPENGLES is not defined, which
> happens if MythTV's configure script doesn't detect Qt's OpenGL support
> correctly.  There are several patches to 'configure' in my
> fixes-0.27-rpi branch that handle this.  Maybe you are building against
> a version of Qt without OpenGLES2 support?
>
> To confirm this, add the following to the top of videoout_omx.cpp:
>
> #ifndef USING_OPENGLES
> #error USING_OPENGLES undefined
> #endif
>
> This will error if USING_OPENGLES is undefined.  The code should be
> built with OpenGLES - it hasn't been tested without.
>
> -- Lawrence Rust
>
>
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