MrMC

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

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.

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.

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?

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?

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.