[mythtv] V30 release

Peter Bennett pb.mythtv at gmail.com
Mon Dec 17 21:45:12 UTC 2018

On 12/17/18 3:38 PM, Bjoern Voigt wrote:
> Bill Meek wrote:
>> On 12/16/18 7:07 AM, Bjoern Voigt wrote:
>>> I would like to test the DVB T2 HD HEVC functionality in MythTV 30, 
>>> so that the German DVB T2 HD users can use MythTV 30 with all 
>>> unencrypted broadcasts (also with 5.1 audio). This should work in 
>>> MythTV 30, because the needed functionality is in FFmpeg 3.4 which 
>>> is included in MythTV 30, but I should test it. Which is the 
>>> preferred Git branch for testing the upcoming 30 release? v30-Pre?
>> Do a: git checkout master. As of this email: git describe will show 
>> the tag and commit:
>> v30-Pre-1010-g98156d696b
> thanks.
> I tested MythTV v30-Pre-1011-g7d6974a9b6 (master branch). Watching 
> German DVB T2 HD (HEVC) live TV and recordings works, but only without 
> VDPAU. With VDPAU (tested with VDPAU High Quality) profile (which I 
> already configured with MythTV 29) playback crashes during start:
> See https://pastebin.com/DYxWELE9
> Other playback profiles (tested: High Quality, OpenGL High Quality) 
> work with German DVB T2 HD (HEVC). Also H264 works with VDPAU, but 
> H265/HEVC fails with VDPAU.
> My setup:
> - v30-Pre-1010-g98156d696b (master branch from 2018-12-16)
> - openSUSE Tumbleweed
> - Nvidia driver 410.78 with Nvidia Geforce GTX 1050 Ti
> Greetings,
> Björn

I tried it and confirm that it core dumps on h265. I am working on 
nvdec, which is nvidia's new decoding API. In the meantime I recommend 
you use an OpenGL playback profile for h265. You can create a custom 
profile that uses opengl for h265 and vdpau for others. Also, I have 
found that VDPAU does not work for anything bigger than 1920x1080. The 
new nvdec will work for h265 as well as 4K video.


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