[mythtv-users] New Rpi 4B - looks like it would make a great frontend
Peter Bennett
pb.mythtv at gmail.com
Thu Jun 27 22:54:08 UTC 2019
On 6/27/19 4:47 PM, Stefan Davids wrote:
> On 27/06/2019 21:27, Jay Foster wrote:
>> On 6/27/2019 11:28 AM, Stefan Davids wrote:
>>> On 27/06/2019 17:11, Mike Bibbings wrote:
>>>> I have the 4GB RAM version of pi 4, so far it looks good.
>>>>
>>>> The operating system changes from Raspbian Stretch to Buster, and
>>>> is applicable to all Pi variants now.
>>>>
>>>> It will do 4k @ 60Hz, but software support is limited at this time,
>>>> and mythtv will probably need changes.
>>>>
>>>> I have repackaged mythtv-light to run under Buster and tested on Pi
>>>> 3 and Pi 4 1920x1080 @50Hz, it should also work on Pi 2 (not yet
>>>> tested).
>>>>
>>>> Anyone wanting to try please see
>>>> https://forum.mythtv.org/viewtopic.php?f=46&t=3221
>>>
>>> Is the h265 decoding a possibility with mythtv or is that one of the
>>> things that will require mythtv changes to get support for?
>
>> I don't know about the RPi, but regular MythTV added support for
>> H.265 in version 0.28, at least for decode and playback.
>
> Yes but RPi3, for example, doesn't have hardware decoding for h265 and
> doesn't have the CPU power to do software decoding and produce
> watchable video.
>
> The reviews imply the new RPi4 can do hardware decoding of h265, so
> I'm curious if anyone knows if mythtv can take advantage of that or if
> this is one of the cases of current limited software support...
>
> Stefan
>
The existing code will use software decoding for H265, which may be too
slow. A code change will be needed to set the appropriate OpenMAX
decoder type for H265 on the raspberry pi4
Peter
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