[mythtv-users] H265 support

[Michael Wisniewski]

I really don't have any plans to use h265 for quite some time.  I really
doubt the cable companies are going to start using it since many of them
are still stuck on mpeg2.  I also can't see OTA changing that much too, but
I could be wrong.

I would guess since Myth is mostly for DVR type recordings, I don't think
it will be well supported.  Another guess is that most of the support for
h265 within myth would be done outside of myth with an external player.
Again, these are only guesses and speculations.

If you have a big library with h265, you might want to look at Kodi.  v14
has it built in (software decoding), and v15 nightlies has it for hardware
decoding (limited).



On Fri, Apr 10, 2015 at 6:01 PM, dennis <deg at outlook.com> wrote:

>
>
> It looks like H265 playback is already supported in the master branch (
> 0.28 ).  I'm guessing it was added automatically with new version of ffmpeg
> being used.
>
> Playback of a 4k video does work, but has occasional pauses when played
> through mythtv ( but plays smoothly through vlc on my system).   It would
> only playback using xvideo,  as the opengl render crashes the frontend
> immediately on playback.
>
> I'll take a deeper look at the code and see what it would take to add
> support for H265_VDPAU.    First glance,  it looks like only a few files
> that would need to change.
>
> Dennis
>
>
>
>
> On 04/10/2015 02:14 PM, dennis wrote:
>
>>
>> I see in the 'configure' file that there is an option for
>> --enable-libx265, so I was assuming someone was working on this, or already
>> has it working.
>>
>> I tried to enable and compile but got errors:
>> libavcodec/libmythavcodec.so: undefined reference to `x265_picture_init'
>>
>> From what I can tell,  it should be as simple as installing some
>> libraries and re-compiling.   I already installed the x265 package, but
>> still get the errors.   It does look like the Nvidia vdpau support will
>> require some coding.
>>
>> Thanks,
>> Dennis
>>
>>
>> On 04/10/2015 01:04 PM, Gary Buhrmaster wrote:
>>
>>> On Fri, Apr 10, 2015 at 5:20 PM, dennis <deg at outlook.com> wrote:
>>> ....
>>>
>>>> Does anyone know if or when H.265 support is planned for mythtv?
>>>>
>>> I believe the current answer is "When you have written and contributed
>>> it" :-)
>>>
>>> There is nothing wrong with adding HEVC support to the wishlist/feature
>>> request list on the forum, but one should understand that the list is not
>>> a priority list, it is just a list.  People who contribute to MythTV
>>> work on
>>> what interests them (at the moment), and as of right now, I have seen
>>> no great interest expressed by anyone for making all the changes
>>> needed for HEVC (probably because there is a dearth of actual
>>> interesting content, and the hardware support is very limited at this
>>> time).  As with all such capabilities, that will eventually change,
>>> so perhaps when the BBC remasters "The Planet" into "Ultra" 4K and
>>> people expect to be able to walk up to their 80" OLED and see the
>>> dust on the hummingbird's wings someone will jump into the fray.
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