[mythtv-users] Gigabyte Brix Celeron N2807

Gerald Brandt gbr at majentis.com
Tue Nov 17 21:00:41 UTC 2015


Hi,

That might be it.  I'll test when I get home.

Gerald


On 2015-11-17 02:18 PM, Mark Perkins wrote:
>
>
>
>
> On 18 Nov 2015, at 1:44 am, Gerald Brandt <gbr at majentis.com 
> <mailto:gbr at majentis.com>> wrote:
>
>>
>>
>> On 2015-11-17 07:57 AM, Gerald Brandt wrote:
>>>
>>>
>>> On 2015-11-17 07:27 AM, Tom Bongiorno wrote:
>>>> On Tue, Nov 17, 2015 at 8:11 AM, Gerald Brandt <gbr at majentis.com 
>>>> <mailto:gbr at majentis.com>> wrote:
>>>>
>>>>     Hi,
>>>>
>>>>     I just bought one of these units
>>>>     (http://www.gigabyte.com/products/product-page.aspx?pid=5038#ov).
>>>>     The price was right, and I had the RAM and SSD already.
>>>>
>>>>     The first thing I did was install Lubuntu and a mythfrontend. 
>>>>     It works pretty well, but my regular frontend is a quad core
>>>>     AMD with an Nvidia GT 730.  There are definitely quality
>>>>     differences in the video.
>>>>
>>>>     vainfo gives me this:
>>>>
>>>>     vainfo: VA-API version: 0.38 (libva 1.6.0)
>>>>     vainfo: Driver version: Intel i965 driver for Intel(R) Bay
>>>>     Trail - 1.6.0
>>>>     vainfo: Supported profile and entrypoints
>>>>           VAProfileMPEG2Simple            : VAEntrypointVLD
>>>>           VAProfileMPEG2Simple            : VAEntrypointEncSlice
>>>>           VAProfileMPEG2Main              : VAEntrypointVLD
>>>>           VAProfileMPEG2Main              : VAEntrypointEncSlice
>>>>           VAProfileH264ConstrainedBaseline: VAEntrypointVLD
>>>>           VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
>>>>           VAProfileH264Main               : VAEntrypointVLD
>>>>           VAProfileH264Main               : VAEntrypointEncSlice
>>>>           VAProfileH264High               : VAEntrypointVLD
>>>>           VAProfileH264High               : VAEntrypointEncSlice
>>>>           VAProfileH264StereoHigh         : VAEntrypointVLD
>>>>           VAProfileVC1Simple              : VAEntrypointVLD
>>>>           VAProfileVC1Main                : VAEntrypointVLD
>>>>           VAProfileVC1Advanced            : VAEntrypointVLD
>>>>           VAProfileNone                   : VAEntrypointVideoProc
>>>>           VAProfileJPEGBaseline           : VAEntrypointVLD
>>>>
>>>>     Is there anything I can do to tweak the video? Kodi seems to
>>>>     give me better quality.
>>>>
>>>>     I'd probably be better off with the Brix i3 version and Intel
>>>>     HD 5500 video, but it has a fan and I'm not sure how much noise
>>>>     it generates.
>>>>
>>>>     Gerald
>>>>
>>>>     _______________________________________________
>>>>     mythtv-users mailing list
>>>>     mythtv-users at mythtv.org <mailto:mythtv-users at mythtv.org>
>>>>     http://lists.mythtv.org/mailman/listinfo/mythtv-users
>>>>     http://wiki.mythtv.org/Mailing_List_etiquette
>>>>     MythTV Forums: https://forum.mythtv.org
>>>>
>>>>
>>>> Questions like this come up over and over again. They should 
>>>> continue to be asked, even if only to serve as gauge of the 
>>>> interest in Intel Graphics support.
>>>>
>>>> Interlaced Video: You will surely see a difference in video 
>>>> quality. Mythfrontend does not utilize the latest deinterlacers 
>>>> provided by the Intel Graphics driver. Even if it did, I am not 
>>>> sure that they are as good as the Nvidia GPU deinterlacers. Kodi 
>>>> has a much larger developer group and most likely uses the latest 
>>>> features of the Intel Graphics driver.
>>>>
>>>> Progressive Video: I would think that they would be the same, but I 
>>>> admit that I know little about decoding video. Maybe someone else 
>>>> can give better info on this one.
>>>>
>>>> Buying the i3 version with Intel HD 5500 GPU will not improve your 
>>>> video quality at all.
>>>>
>>>> -Tom
>>>>
>>>>
>>>
>>> Interestingly, after I ran Kodi, the MythTV de-interlacing looked 
>>> much better.  I'll have to experiment a bit.
>>>
>>> Gerald
>>>
>>
>> Hi,
>>
>> Nah, I couldn't duplicate it.
>>
>> The video is so bad under MythFrontend and the WAF is zero for Kodi, 
>> so I'll fix my Quad Core AMD/Nvidia GT 730 system and go back to 
>> that.  Too bad.
>>
>> Gerald
>>
>> _______________________________________________
>
> Are you testing using LiveTV? At one point (IIRC) there was a bug that 
> every other channel change (ie alternating) would revert to software 
> decoding.
>
> https://code.mythtv.org/trac/ticket/12319
>
> Comment appears to indicate it is fixed in master only.
>
>
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