YouTube HDR... finally

[Kuschelmonschter]

YouTube HDR content is finally available!

You will find a playlist here. However, these clips will be played as SDR on Sonys for now.

With youtube-dl you can find vp9.2 encodings for those clips:

330          webm       256x144    144p60  156k , vp9.2, 60fps, video only, 2.38MiB
331          webm       426x240    240p60  256k , vp9.2, 60fps, video only, 3.87MiB
332          webm       640x360    360p60  485k , vp9.2, 60fps, video only, 7.35MiB
333          webm       854x480    480p60  909k , vp9.2, 60fps, video only, 13.83MiB
334          webm       1280x720   720p60 1991k , vp9.2, 60fps, video only, 28.18MiB
335          webm       1920x1080  1080p60 3201k , vp9.2, 60fps, video only, 49.70MiB
336          webm       2560x1440  1440p60 11166k , vp9.2, 60fps, video only, 170.23MiB
337          webm       3840x2160  2160p60 20122k , vp9.2, 60fps, video only, 335.45MiB

Those are webm however which the native Video app won't play.

We will see whether we will get support for it soon, even for the early 2016 models with the old MediaTek SoC from last year. At least Sony promised that back at CES:

Spoiler

YouTube will also start streaming in HDR quality later this year, using a new VP9-Profile 2 codec that brings HDR support to Google’s VP9 video format. Sony’s Motoi Kawamura, Head of TV Product Planning for Sony Europe, confirmed to FlatpanelsHD that the 2016 models will support VP9-Profile 2 and be capable of streaming YouTube in HDR. We saw a demo at CES and it looked very good.

Source

[Risc0n]

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@Kuschelmonschterwrote:

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@Risc0nschrieb:

The iPhone app was revently updated for HDR on iPhone X. So I think this will be the reason.

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That contradicts my theory though. Are you sure that the TV switches to the VP9.2 stream when doing Chromecast? I actually doubt it...

I doubt that the mobile's capabilities have anything to do with Chromecast playback.

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Defo HDR as my TV switches just does not switch colour space.

[Kuschelmonschter]

I was able to try YouTube HDR via Chromecast on XF90 with FW 6.5164. It indeed worked even from a non-HDR iPhone 7.

This is what Chromium reports now:

05-22 16:51:58.062 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=256; height=144; framerate=60 -> true
05-22 16:51:58.062 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=426; height=240; framerate=60 -> true
05-22 16:51:58.062 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=640; height=360; framerate=60 -> true
05-22 16:51:58.063 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=854; height=480; framerate=60 -> true
05-22 16:51:58.063 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=1280; height=720; framerate=60 -> true
05-22 16:51:58.063 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=1920; height=1080; framerate=60 -> true
05-22 16:51:58.063 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=2560; height=1440; framerate=60 -> true
05-22 16:51:58.064 17674 17727 I chromium: [17674:17727:INFO:media_capabilities_bindings.cc(432)] CanDisplayType type=video/webm; codecs="vp09.02.51.10.01.09.16.09"; width=3840; height=2160; framerate=60 -> true

And Chromium indeed selects the HDR stream fmt=337 (2160p60 HDR VP9.2). Colorspace is still wrong. The TV also does not max out the backlight.

The stock YouTube app still does not select the VP9.2 streams.

[rooobb]

just wanted to add that (I don't know since when, but I just applied the latest firmware on my KD55A1) also my very poor Samsung J5-2016 now can cast 4K HDR video to the TV (even if it is not nor 4k neither HDR capable).

Colour space seems right to me (no changes between auto and BT2020). Not all the video will play tough, for some the screen is black. But mostly they run

[stormyuk]

Hmm i tried recently with my Moto G5, can you give me an example link that your Samsung will cast in HDR?

[rooobb]

I.e. 

https://youtu.be/mkggXE5e2yk

https://youtu.be/0asvzeLD8a8

https://youtu.be/Cg0QwoHh9w4

Obviously the a1 demo

https://youtu.be/74SZXCQb44s

This one  no

https://youtu.be/tO01J-M3g0 Ps... I was wrong colour space is wrong you have to set it to bt2020 at least on this

[stormyuk]

Well blow me down, they are working using my phone to cast now too. Thanks for the heads up. Just need Sony to fix iPlayer HLG and ill be pretty happy.

[rooobb]

👍

[Itom86]

Casting my Moto Z to XD83 the HDR really does work, unfortunately the colour space is bt.709 for me 😒

[mobilyuk]

How do you change colour space?

[mobilyuk]

I can't seem to get HDR working on the youtube app.. do I need to download another app to get HDR working?