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YouTubeHDR / hdr_metadata

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"You uploaded an HDR video, but the pixel format is incorrect" #11

Closed zmarty closed 6 years ago

zmarty commented 7 years ago

While I upload HDR videos I see this less than helpful message on the YouTube website:

You uploaded an HDR video, but the pixel format is incorrect. For more information on best practices for creating HDR content please refer to this article.

The article does not say anything about "pixel format". Can you be a bit more specific?

nbirkbeck commented 7 years ago

Can you share an example video id?

The message is referring to the pixel format needing to be at least 10-bit.

zmarty commented 7 years ago

Here is one example: https://www.youtube.com/watch?v=74SZXCQb44s

This is 10 bit video in a 12 bit DNxHR HQX format.

nbirkbeck commented 7 years ago

Thanks for sharing the video and for filing the bug report!

The warning definitely should not have shown up on the video. The problem has been fixed. I'll file a request to get the help text updated.

zmarty commented 7 years ago

Thanks! Please close this item once it's fixed. Also, it would be great if you guys could take a look at the other open items.

TruVetCommando commented 6 years ago

I get the same problem does the video come out in HDR in the end?

nbirkbeck commented 6 years ago

@TruVetCommando can you please share a video id?

TruVetCommando commented 6 years ago

It is still processing at the moment

https://youtu.be/8R_aST3LzHM

nbirkbeck commented 6 years ago

I'm seeing the pixel format of yuv420p on that video (meanin it is bit depth=8). YouTube won't recognize it as HDR unless it is higher bit depth (>= 10). You will need to use an HDR10 profile.

TruVetCommando commented 6 years ago

so when I use mvkmerge to convert from h265 hevc ( xboxonex direct capture from console ) to mvk its dropping the bit depth?

TruVetCommando commented 6 years ago

can sony vegas 15 produce the required pixel format required?

TruVetCommando commented 6 years ago

image this is the original capture from the xbox

nbirkbeck commented 6 years ago

mkvmerge is just transmuxing (it doesn't touch the underlying elementary encoded bitstream). The issue with using a source that is 8-bit in HDR is the presence of banding (visibly observable bands between even the nearest gray level codes in the video)--and this is why YouTube won't respect an 8-bit file marked with HDR transfer functions.

I haven't used Sony Vegas, but I imagine it can manipulate higher bit depth video (again, the problem is going to be that the original source bit depth is too low). Another option for editing/coloring is Davinci Resolve (I think there is a free version).