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Kodi Media Player Options with 3D MVC & HD Audio - Printable Version

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--- Thread: Kodi Media Player Options with 3D MVC & HD Audio (/showthread.php?tid=221407)



RE: Kodi Media Player Options with Full 3D & HD Audio - noggin - 2016-03-23

(2016-03-23, 00:42)nick w Wrote: I currently have 1 x MVC 3d file and 2 x HSBS files. I now am looking at what technology of 3d glasses to purchase. Passive or Active.
Am i right in thinking that the HSBS files wont work with active glasses?

No - you're not right.

Passive and Active are just two different techniques to split the TV's feeds to each eye. Both Passive and Active 3D TVs sold now should accept HSBS, HTAB and Frame Packed (which is what Full HD MVC should be output as on a Pi) The TV processes the various 3D signals into a common format for display.

Passive works by differently polarising alternate lines of a display and thus each eye sees alternate lines (as each eye has a different polarising filter on it that will only see one of the two sets of lines). If you have a Full HD display this means you get half-HD resolution to each eye (1920x1080 lines are split into two 1920x540 eye feeds). However both eyes see lines simultaneously, so there is no perceived flicker.

If you display a 1920x1080 HSBS image that is 960x1080 on a Passive Full HD display you will get 960x540 resolution (effectively SD) to each eye. Not great.

Active works by running the display at twice the frame (or field if interlaced) rate and by wearing powered LCD shuttered glasses with an RF or IR link to the TV. These glasses alternately blank the left eye when the TV is showing the right eye feed, and then blank the right eye when the left eye feed is displayed. This means they flicker (and it can be horrible if you have discharge lighting flickering at 50/60Hz in your room). If you are sensitive to flicker (I am) you may not find them pleasant. You also have to ensure they are charged, and if there are lots of you in the family it gets quite expensive (Passive glasses are flicker free and a LOT cheaper) However because the eye sees the entire resolution of the panel you get full HD resolution for a full HD panel.

IMHO the best of both worlds is a UHD TV with Passive 3D (like our current UHD Sony displaY). This will deliver flicker-free pictures, works with low cost glasses, but will deliver Full HD resolution (1920x1080 Full HD from MVC or 960x1080 from HSBS upscaled to 3840x1080 to each eye - as each line of the 3840x2160 display is alternately polarised for alternate eyes)


RE: Kodi Media Player Options with Full 3D & HD Audio - nick w - 2016-03-23

Thanks for the reply Noggin.
Im not going to lie, i have read your reply 4 time already and still not sure on a thing or 2 but i am getting there

Thanks!


RE: Kodi Media Player Options with Full 3D & HD Audio - Koying - 2016-03-23

(2016-03-23, 01:15)noggin Wrote: IMHO the best of both worlds is a UHD TV with Passive 3D (like our current UHD Sony displaY).

Unfortunately, at least my Sony UHD 2015 does not support 3D in 4K resolution Sad
Totally stupid of them if you ask me, because it effectively mean you cannot watch 3D from the Android TV itself, as the TV *always* runs in 4K.


RE: Kodi Media Player Options with Full 3D & HD Audio - noggin - 2016-03-23

(2016-03-23, 11:07)Koying Wrote:
(2016-03-23, 01:15)noggin Wrote: IMHO the best of both worlds is a UHD TV with Passive 3D (like our current UHD Sony displaY).

Unfortunately, at least my Sony UHD 2015 does not support 3D in 4K resolution Sad
Totally stupid of them if you ask me, because it effectively mean you cannot watch 3D from the Android TV itself, as the TV *always* runs in 4K.

Does the internal Android TV support frame rate switching? (i.e. can you watch 24p content at 24p or is it fixed at 60p (*)?)

(*) or 1000/1001 variants.


RE: Kodi Media Player Options with Full 3D & HD Audio - noggin - 2016-03-23

(2016-03-23, 08:34)nick w Wrote: Thanks for the reply Noggin.
Im not going to lie, i have read your reply 4 time already and still not sure on a thing or 2 but i am getting there

Thanks!

Sorry if I wasn't clear - what bits can I clarify for you?


RE: Kodi Media Player Options with Full 3D & HD Audio - nick w - 2016-03-23

Its not you. I think its my slow grasp of the 3d tech.

i will do some testing with my new Pi3 and reply if i have any more questions

Thanks again Noggin!


RE: Kodi Media Player Options with Full 3D & HD Audio - Koying - 2016-03-23

(2016-03-23, 11:40)noggin Wrote: Does the internal Android TV support frame rate switching? (i.e. can you watch 24p content at 24p or is it fixed at 60p (*)?)

Nope. Fixed both in resolution and refresh rates (60Hz) Sad


RE: Kodi Media Player Options with Full 3D & HD Audio - noggin - 2016-03-23

(2016-03-23, 12:31)Koying Wrote:
(2016-03-23, 11:40)noggin Wrote: Does the internal Android TV support frame rate switching? (i.e. can you watch 24p content at 24p or is it fixed at 60p (*)?)

Nope. Fixed both in resolution and refresh rates (60Hz) Sad

So in reality a non-starter for Kodi use outside North America and other 60Hz territories where 3:2 is tolerated for 24p?

For any platform to be taken seriously as a media player it needs to support 23.976/24.000/50/59.94/60.00 Hz output without asymmetric (i.e. 3:2) display I'd suggest? The lack of 3D UHD support is quite low down the scale for me if a device can't render 23.976p or any 50i/p 2D content properly.


RE: Kodi Media Player Options with Full 3D & HD Audio - Koying - 2016-03-23

(2016-03-23, 14:33)noggin Wrote: So in reality a non-starter for Kodi use outside North America and other 60Hz territories where 3:2 is tolerated for 24p?

Actually, there has been internal talks about handling pulldown better, by inserting "merged" frames.
I'm sure @fritsch will pull that out of his sleeve one day Smile


RE: Kodi Media Player Options with Full 3D & HD Audio - noggin - 2016-03-23

(2016-03-23, 14:42)Koying Wrote:
(2016-03-23, 14:33)noggin Wrote: So in reality a non-starter for Kodi use outside North America and other 60Hz territories where 3:2 is tolerated for 24p?

Actually, there has been internal talks about handling pulldown better, by inserting "merged" frames.
I'm sure @fritsch will pull that out of his sleeve one day Smile

Eek - that's one step away from the devil's work that is "Motion Flow" or "Natural Motion" (interpolating frames is usually horrible unless you have very high quality motion tracking using Phase Correlation or similar) ffmpeg (or at least ffmbc) has a frame rate converter based on the work done on 50/60 conversion by the BBC for their 80s converters (before vector tracking became standard and when 4-field/4-line blending was the norm) I think it was added around the same time as Weston 3-field deinterlacing (also BBC work that is now out of patent life and has been folded into ffmbc)

(Though I do accept that if you can't alter your render rate then it may improve things. I watch 24/23.976Hz stuff with speed-up 2:2 at 50Hz rather than suffer 3:2 at 60Hz on non-24p-friendly displays)


RE: Kodi Media Player Options with Full 3D & HD Audio - tate1293 - 2016-03-23

(2016-03-23, 00:42)nick w Wrote: Im not sure which to go with now, active or passive

Running on a Pi3 with latest MillHouse build

Thanks
N

Are you asking which glasses to get or which TV or projector to get? I see in a previous post you said you have an Optoma HD28 projector. If you're asking about what will work with that, your only option is active glasses unless you set up a polarizing filter or dual projector setup. As noggin said, optimally, passive 3D with full resolution to each eye is the best, but the only way to get that is a passive UHD 3D TV or hacking a projector setup, since there aren't any out of the box passive 1080P projectors that I know of.


RE: Kodi Media Player Options with Full 3D & HD Audio - 3DBuff - 2016-03-23

I'm trying to understand this frame rate deal.

I have Epson project 5030UB connected to RPi2 and recently testing RPi3.
When looking at Kodi info screen I can see 23.97Hz but projector reports 24.00 half the time.

I don't see skipping frames every 20 seconds.

How accurate is RPi HDMI output refresh rate display in Kodi?
Is this possible for RPi to be set for 23.98fps and projector display at 24.00 at the same time. Would it work at all? How is the projector getting 24.00Hz number sometimes?

I have full post in more relevant thread "Adjust Display Refresh Rate..." but didn't get any reply.
http://forum.kodi.tv/showthread.php?tid=219796&pid=2287519#pid2287519

Any info on this subject would be appreciated.


RE: Kodi Media Player Options with Full 3D & HD Audio - hdmkv - 2016-03-24

I have an Epson 5025UB, which is basically the same as your 5030UB. These PJ's are NOT 100% accurate in reporting framerates. Try stopping playback of a 23.976 video, then restarting and press 'Menu' on Epson remote and check info tab again... it may now show "23.97". If not, it may show it the 3rd time you try.


RE: Kodi Media Player Options with Full 3D & HD Audio - Theetjuh - 2016-03-24

(2016-03-23, 12:31)Koying Wrote:
(2016-03-23, 11:40)noggin Wrote: Does the internal Android TV support frame rate switching? (i.e. can you watch 24p content at 24p or is it fixed at 60p (*)?)

Nope. Fixed both in resolution and refresh rates (60Hz) Sad
I must say watching [email protected] looks pretty good on my 4k Sony Android TV with Kodi v16.1 PT installed


RE: Kodi Media Player Options with Full 3D & HD Audio - noggin - 2016-03-25

(2016-03-24, 19:29)Theetjuh Wrote:
(2016-03-23, 12:31)Koying Wrote:
(2016-03-23, 11:40)noggin Wrote: Does the internal Android TV support frame rate switching? (i.e. can you watch 24p content at 24p or is it fixed at 60p (*)?)

Nope. Fixed both in resolution and refresh rates (60Hz) Sad
I must say watching [email protected] looks pretty good on my 4k Sony Android TV with Kodi v16.1 PT installed

Can you watch any 720/50p or 1080/50i native news channels with tickers (the scrolling text at the bottom of the screen)? The BBC News Channel ticker in the UK is a great test of motion rendition (if you see it at 60Hz it screams 'wrong' to me)


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