[mythtv] MythCodecContext: 2 concurrent hardware frames contexts

[John Pilkington]

On 08/02/2020 15:36, John Pilkington wrote:
> On 08/02/2020 14:36, John Pilkington wrote:
>> On 08/02/2020 14:06, John Pilkington wrote:
>>> On 08/02/2020 12:30, Mark Kendall wrote:
>>>> On Fri, 7 Feb 2020 at 19:54, John Pilkington <johnpilk222 at gmail.com> 
>>>> wrote:
>>>>
>>>>>> Is the issue with OpenGL/EGL etc resolved?
>>>>>
>>>>> Only in the sense that it works (ffmpeg-only system) with the preamble
>>>>> and doesn't play content without.  Should I just export the ev?
>>>>
>>>> I'm not sure how you are building - but have you done a complete
>>>> re-build? i.e. uninstall, distclean and run configure again.
>>>>
>>>> The fix I was hoping would resolve your problem is in the configure 
>>>> script.
>>>>
>>>> If you've done so, can you post the output of configure and the
>>>> contents of configure.ep so I can see what is going on.
>>>>
>>>> Thanks and regards
>>>> Mark
>>>
>>> I'm afraid the build process is rather 'black box-ish' to me;  I'm using
>>>
>>> https://github.com/garybuhrmaster/packaging/tree/master/MythTV/rpm
>>>
>>> but the box in question runs el7 with the kde/plasma desktop.  That 
>>> requires a myth-incompatible version of vpx, so my builds have just 
>>> disabled vpx while Gary's build the proper version.   And I notice 
>>> other recent activity on the site, which won't have affected my el7 
>>> builds to date.
>>>
>>> However, my understanding is that the builds are all done in a clean 
>>> environment.  Much of the logging is deleted on success, but I'll see 
>>> if I can find anything that looks relevant.
>>>
>>> John
>>>
>> These?
>>
>> https://drive.google.com/open?id=1swPeTGUURUCIcnjNaeW69GFnKU88DBOl
>>
>> https://drive.google.com/open?id=1SDBkzkcn2gxsEc3tQCxPs3kZBQ5B6z15
> ===========
> 
> ...  and, of course, I'm building on a different machine and installing 
> the packages.  Can a config-based mechanism do that?

============

Continuing on this topic, which has again diverged from the subject:

I now have master (46f8404) from the ppa:mythbuntu/32 running in a 
window on the kubuntu/bionic core2duo laptop.  It has the same problem.

As usual for me, I'm running mythbackend in one konsole tab and

MYTHTV_NO_EGL=1 mythfrontend.real -v playback

in another.  Without the preamble there is no playback, and the first 
line of the log is

"Display: Requesting EGL for 'Mesa Project, 1.4'"

The current ppa 31 version is older (3df1369) and probably has other 
problems too.

HTH

John