Page 6 of 7

Re: new appletv might be coming

Posted: 13 Sep 2017, 16:23
by davilla
loekf2 wrote:
13 Sep 2017, 16:06
cosmoxl wrote:
13 Sep 2017, 13:51
My understanding is that out of Vudu, Netflix, Amazon at least some of them stream Atmos metadata via the DD+ stream. But, this requires bitstream which the ATV4 and ATV4k won't do.
Not 100% correct, ATV can do bitstreaming, but you're limited to the formats tvOS supports:

- 5.1 PCM, though looks like 7.1 is possible based on Apple specs
7.1 PCM was always present.

Re: new appletv might be coming

Posted: 13 Sep 2017, 21:04
by cosmoxl
loekf2 wrote:
13 Sep 2017, 16:06
cosmoxl wrote:
13 Sep 2017, 13:51
My understanding is that out of Vudu, Netflix, Amazon at least some of them stream Atmos metadata via the DD+ stream. But, this requires bitstream which the ATV4 and ATV4k won't do.
Not 100% correct, ATV can do bitstreaming, but you're limited to the formats tvOS supports:

- 5.1 PCM, though looks like 7.1 is possible based on Apple specs
- DTS, DD, DD+ (E-AC3)

Apple has never supported DTS-HD and TrueHD in all those years. Looks like they didn't change their mind.

Oh btw... ATV4 (the current one) now supports HEVC / H.265. Guess tvOS 11 is the reason:

HEVC SDR up to 1080p, 30 fps, Main/Main 10 profile

So hardware decoding of 1080p is possible, though you're limited to 30 fps.

Hopefully MrMMC can make use of tvOS 11 hardware decoding soon.
What I meant was that the ATV4 and probably 4k won't bitstream DD+. Of course, I know they can bitstream DD and DTS.

Re: new appletv might be coming

Posted: 13 Sep 2017, 23:40
by davilla
cosmoxl wrote:
13 Sep 2017, 21:04
loekf2 wrote:
13 Sep 2017, 16:06
cosmoxl wrote:
13 Sep 2017, 13:51
My understanding is that out of Vudu, Netflix, Amazon at least some of them stream Atmos metadata via the DD+ stream. But, this requires bitstream which the ATV4 and ATV4k won't do.
Not 100% correct, ATV can do bitstreaming, but you're limited to the formats tvOS supports:

- 5.1 PCM, though looks like 7.1 is possible based on Apple specs
- DTS, DD, DD+ (E-AC3)

Apple has never supported DTS-HD and TrueHD in all those years. Looks like they didn't change their mind.

Oh btw... ATV4 (the current one) now supports HEVC / H.265. Guess tvOS 11 is the reason:

HEVC SDR up to 1080p, 30 fps, Main/Main 10 profile

So hardware decoding of 1080p is possible, though you're limited to 30 fps.

Hopefully MrMMC can make use of tvOS 11 hardware decoding soon.
What I meant was that the ATV4 and probably 4k won't bitstream DD+. Of course, I know they can bitstream DD and DTS.
I'm not so sure, to do Atmos, you need 192KHz sample rate and that was the missing bit to do DD+.

Once I get Xcode 9 up, then I'll be able to see what sample rates are supported.

Re: new appletv might be coming

Posted: 14 Sep 2017, 07:24
by vlaves
Do you guys think, that the SoC (A10X) is fast enough to do the yadif 2x deinterlacing? Or maybe Apple integrated a good hardware deinterlacer in the new ATV?

Re: new appletv might be coming

Posted: 14 Sep 2017, 13:49
by cosmoxl
vlaves wrote:
14 Sep 2017, 07:24
Do you guys think, that the SoC (A10X) is fast enough to do the yadif 2x deinterlacing? Or maybe Apple integrated a good hardware deinterlacer in the new ATV?
that would be nice!

Re: new appletv might be coming

Posted: 14 Sep 2017, 15:40
by davilla
vlaves wrote:
14 Sep 2017, 07:24
Do you guys think, that the SoC (A10X) is fast enough to do the yadif 2x deinterlacing? Or maybe Apple integrated a good hardware deinterlacer in the new ATV?
yadif 2x deinterlacing should work already for SD interlaced content. 1080i HD, not a chance under ATV4, under ATV5, maybe, just have to wait until they become available to tell for sure.

Re: new appletv might be coming

Posted: 14 Sep 2017, 18:54
by vlaves
davilla wrote:
14 Sep 2017, 15:40
vlaves wrote:
14 Sep 2017, 07:24
Do you guys think, that the SoC (A10X) is fast enough to do the yadif 2x deinterlacing? Or maybe Apple integrated a good hardware deinterlacer in the new ATV?
yadif 2x deinterlacing should work already for SD interlaced content. 1080i HD, not a chance under ATV4, under ATV5, maybe, just have to wait until they become available to tell for sure.
Thanx for the reply :) considering the benchmarks of the A10X which in some benchmarks reaches Core i3 level, I'm hoping that those benchmark categories are the one needed for yadif 2x :)

Re: new appletv might be coming

Posted: 14 Sep 2017, 18:59
by davilla

Re: new appletv might be coming

Posted: 15 Sep 2017, 04:29
by eazytv
Tim's gonna LOVE it. ;-)

Re: new appletv might be coming

Posted: 15 Sep 2017, 07:10
by timstephens24
Yeah I am. Ordered two!