Anyone with a good grasp on HLG workflow care to share how to work with it in FCPX, PP, Vegas etc? Primarily interested in how to export out to YouTube in an HDR recognized and playable format, and how to export out in normal REC709 for typical HD use. Would like to spend the next two nights shooting 10 bit 4:2:2 HLG HD files at work, very high contrast ENG stuff, to see how HLG looks.

What would be the recommended HLG settings to start off with...don't know what HLG, HLG1, 2, 3 etc mean...not looking to grade, just shoot and render HD REC709 for news and then play with the HDR baked into the clips when I get home.

My starting point... https://support.apple.com/en-us/HT208283

Using the settings specified in the Apple link, my 4K HDR ProRes422 clips playback as "HD" only, with no HDR indicator displayed. Other 4K HDR clips on YouTube say 4K HDR on my TV screen.

Paul

Managed to get a working "4K HDR" video on YouTube...none of the export codecs or settings in FCPX, including any flavor of ProRes, will add the required HDR metadata YT needs. I had to export to Compressor as Apple Devices 4K HEVC...took 32 minutes to export a 27 second test clip.

The results were...MEH...looked really no different than SDR...my TV only does 350nit, so not 1000nit, maybe it would look better on a newer set, but still, the dynamic range was identical, just stretched over the extended NIT range. Highlights will still blow out exactly the same as in REC709.

Paul

Why did you think you'd see HDR footage on a non-HDR television?

Why would you think I would get a "4K HDR" icon on a non HDR TV viewing YouTube? :-P

My TV is HDR, just not a high end super bright one.

Paul

What model is it?

Samsung UN40JU7100...2015 model, predates HLG.

Paul

Two test renders, one with all toggles set to HLG, the other with HLG to PQ conversion settings. Please let me know how these look in HDR, assuming they are working correctly. I checked off the "add HDR metadata" box on Apple HEVC Compressor.

https://youtu.be/qDn923IS6Rs

https://youtu.be/Da_7yzzykkw

Two test renders, one with all toggles set to HLG, the other with HLG to PQ conversion settings. Please let me know how these look in HDR, assuming they are working correctly. I checked off the "add HDR metadata" box on Apple HEVC Compressor.



The first - all HLG - looked great in HDR, the lights and the reflective material pop and there is detail in the unlit parts. The second is awful - all blacks crushed so there is zero detail in the dark spots.

Yes first one works, the second one is too dark.

Did you use the PQ curve while grading?
For instance in DaVinci Resolve you should use: Rec2100 - ST2084

Samsung UN40JU7100...2015 model, predates HLG.

It’s just a 4K TV. It doesn’t support any HDR modes.

I can't grade HLG on my Macbook, it requires an external video card device...the HLG version was just dumped on the timeline, set all to HLG, and exported. The PQ version was all set to PQ, and HLG to PQ conversion option was checked. YouTube and Apple all indicate you are supposed to use PQ for HDR, so guess that info is not entirely accurate.

Paul

It’s just a 4K TV. It doesn’t support any HDR modes.

Yes, it received an HDR10 update, and has HDR app support for Netflix and Amazon, but not YouTube. For YouTube, I need to feed it through my Chromecast Ultra.

Still trying to figure out how to export to SDR REC709...I think the BT2020 color mode was a mistake, will test HLG with REC709 color tonight. All my attempts to convert to standard 709 files come out with the colors, red especially, looking desaturated and off color.

Paul

You need to convert the HLG curve to the PQ curve for your HDR10 video to work.

Also for YouTube you need to set the primaries and other options.

For instance here is an example where you tag the mkv with a custom fallback LUT:

mkvmerge.exe -o video_youtube.mkv --colour-matrix 0:9 --colour-range 0:1 --colour-transfer-characteristics 0:16 --colour-primaries 0:9 --max-content-light 0:1000 --max-frame-light 0:300 --max-luminance 0:1000 --min-luminance 0:0.01 --chromaticity-coordinates 0:0.68,0.32,0.265,0.690,0.15,0.06 --white-colour-coordinates 0:0.3127,0.3290 --attachment-mime-type application/x-cube --attach-file sdr.cube video.mkv

I did HLG to PQ option in FCPX.

FCPX has an area for HDR metadata, but you cannot access or change it, it just is all greyed out. At the point where I have to hex edit a video file to get it to work right is the point I get out of video production. :-D

The worst part of this HLG workflow, is that I cannot preview it on my Macbook, or my TV, so unable to grade or adjust anything. It takes about an hour to spit out 30 seconds of footage through Compressor, upload to YouTube, wait for it to process, then watch it on my TV...and that's just for testing each setting, it's driving me crazy.

Paul

After reading the below article, it would appear HLG would have no use for me. I can only see a use for it specifically feeding YouTube for HDR playback...any attempts to view in SDR or 4K without HDR capability, would result in horrible looking footage. I thought YT had some sort of conversion going on for it's SDR versions of uploaded HDR content, but doesn't look that way to me at this point.

So chalking up HLG to a novelty, similar to my VR goggles that came with my Samsung phone, used once, now collecting dust. Will post a full 1:30 HDR clip of the crash scene on the smaller clips...one thing my scenes have is high contrast and high intensity colors that pop! :-D

Paul

http://www.xdcam-user.com/2017/07/what-is-hlg-and-what-is-it-supposed-to-be-used-for/

You should switch to Resolve.

Shoot in HLG, REC2020 color.

In settings, set to Resolve Color Management.

Set the input color space, timeline color space and output color space to REC.2100 HLG. Set 'Timeline to Output Tone Mapping' to Luminance Mapping.

Edit, whatever.

Then render (Deliver) using the DNxHR HQX 10bit codec.

Resolve will *automatically* insert the correct metadata (no additional step). The output is ready for Youtube. YouTube will play the video in HDR if you have an HDR and HLG-enabled viewer, otherwise it will play a converted REC709 version. The REC709 version it creates looks fine. Not "horrible looking" footage. You are giving up too soon.

Now, if you want to make a REC709 version of your HLG video, set the input color space to REC.2100 HLG as before but the timeline color space and output color space to REC.709 Gamma 2.4.

Edit (you will have to pay attention to the reduced DR), and render in whatever codec you want.

Very easy.

Here's an HLG HDR video I made in Resolve, in this case from shooting in Slog2 (so then the input color space was Slog2, the rest REC.2100 HLG as above).

https://youtu.be/l5qyzrndY-Q

and this,

https://youtu.be/cUifzspxp_c

Thanks for the tips...I have the newest Resolve on my Macbook, but do you need the PAID version to export 4K files?

And not really giving up, just relegating HLG to "hobby" status, off my list for shooting normal ENG with. I am playing around with my raw clips to see if I can export something in REC709 that doesn't look like raw Hypergamma footage. Will be testing HLG with REC709 color tonight, but I am not sure if you NEED to be in BT2020 in order for HDR to work with FCPX. All the FCPX timeline property selections for HDR show only 2020..the lone 709 one is SDR.

Paul

My HD HLG REC709 color test FAILED...uploaded to YouTube, but HDR simply isn't working, and I cannot convert the HDR highlights to anything usable in FCPX...apparently, it seems it doesn't recognize the HDR content encoded as 709, only 2020.

Here is the full length HLG 4K clip as promised. Also including a 1080p HDR to SDR REC709 setting export from FCPX, so you can see what the 4K HLG footage looks like when I try to use it for broadcast...barf. It looks almost like raw S-log graded using levels instead of a LUT.

Paul

https://youtu.be/U0dFtmv57Ws

https://youtu.be/QAPBez0rg2U

Just for kicks, a few clips shot in normal 4K REC709, no HLG or BT2020, just standard PP4 for comparison.

https://youtu.be/S9QLZTXTBFo

I have apparently lost the ability to view youTube HDR...my previous clips that were saying 4K HDR now say only HD with no HRD icon. Unless someone knows how to view HDR on a TV set that takes HDR10 inputs, then I am going to call this a wrap on my end.

Paul

Yes, it received an HDR10 update, and has HDR app support for Netflix and Amazon, but not YouTube.

It supports the signal, but from what I am seeing about your model, it is physically unable to actually display HDR content, which is why you can’t see much of a difference.

The "HDR" on my TV basically pumps the backlight brightness to 100%, drops the REC709 area levels to 100cd/m, and allows the upper portions of the HDR signal take up the remaining 100-350cd/m range the set produces. The wonderful side effect of having a 100cd/m normal image with 100% backlight, is that black levels are horrible, and it looks like a TFT LCD panel from 1996! :-P

The Tick on Amazon HDR looks amazing though. :-D

Paul

Paul - in the bottom video there is a guy getting into the AMR paramedic vehicle and he is wearing kaki pants with yellow SOLAS reflectors on the cuffs. That’s a good move because car headlights point downward and the cuff reflectors really show up in the headlights.

Canadian ferry crew also wear pants with SOLAS reflectors on the cuffs; HOWEVER, our Washington State ferry crews wear black pants, black shoes, and no reflectors - BUT … they have a chest vest with reflectors. I’ve mentioned to the state ferry safety inspectors, our elected Olympia representative, and a few others about how they should have reflective cuffs. When they’re directing traffic in a large and not that well lit parking lot at night, and one has the windshield wipers going (hey, this is Washington), maybe a bit of fogging on the windows, they don’t show up all that well.

I like that picture! Oh, and the red, white, and blue colors show up good too. Just noticed they even have reflector tape or LED lights on the door, good idea. T-shirt weather, ooooh can’t wait to shed this flannel shirt and heavy sweater.

Speaking of TVs, would the station have anything that would work? Umm, borrow???

Yeah, those AMR jackets are BRIGHT!!! I always have to throw a 109-100IRE effect at those clips! :-D

And good news on my HLG testing...I was able to get the Apple Compressor HEVC "Apple Devices" m4v files to playback and be recognized as HDR by my TV, simply by changing the file extension from m4v to mp4. Apparently, Samsung has issued a firmware update that enabled HLG functions, but as Samsung doesn't every give a list of what has been added, changed or fixed on it's firmware, no one knew. :-)

Paul

So here is my last HLG video upload. Since HLG is not tone mapped, meaning the areas of normal exposure are not mapped to a peak of 100cd/m, and instead are standard REC709 gamma, the HLG footage I am able to view in HDR mode on my set is identical to the SDR version. With the HDR on my set forcing 100% backlight, instead of HDR10 inky blacks with bright highlights, I just get raised REC709 levels that look like watching SDR with backlight turned up. To be more clear, when I watch YouTube, Amazon, Netflix HDR, the scenes without highlights appear 100cd/m (dim) even with my sets backlight to maximum, which for SDR would mean a 20% backlight for 100cd/m. Maybe some of you with higher end TV sets can see better HDR effect than I can, but I do not honestly believe this camera is able to produce any extreme highlight details above the REC709 footage...it seems HLG on this camera is just a gimmick*?

*FCPX has the option to convert/conform HLG clips to standard PQ tone mapping HDR, for final mastering in HDR10 or Dolby Vision, which may allow it to look more like expected real HDR material.

Here is about 4 minutes of RAW HLG/BT2020 4K 100Mbps footage ungraded and unaltered exported and uploaded to YouTube. The 4 minute HEVC export on my Macbook Pro took 7 hours. :-|

https://youtu.be/qMqm_7ZieJw

Regarding the 7 hours of export, sounds like your computer was using a software-based solution. Newer Macs have hardware-based HEVC codecs.

Here is a test I did back in January showing a very dramatic speedup of hardware-based HEVC:

Granted, the source material was only HD, but I believe the encode/decode will be linear for higher-resolution footage as well as higher framerate. Thus, your footage on a hardware-based HEVC Mac should also be much faster.

Note: The 2017 MacBook Pros contain 7th-gen Intel Core processors. I believe they would be able to support hardware accelerated HEVC. Older MacBook Pros would not.

ORIGINAL TEST (2-Jan-2018):

Finally able to conduct some tests today with a 3 minute, 18-second H.264 clip (1080p, 8-bit 4:2:0, 29.97 fps).

Old Mac (2012 12-Core Mac Pro, 32 GB RAM, Radeon HD 5870 1 GB). Source drive read speed of 100 MBps. Destination drive (separate) a write speed of around 120 MBps. Conversion would have taken around 45 minutes (I stopped it at the 6-minute mark and it had around 40 minutes left to go).

New Mac (2017 10-Core iMac Pro. 64 GB RAM, Radeon Pro Vega 56 8 GB). Source RAID read speed of 600 MBps. Destination RAID (separate unit) a write speed of 400 MBps. Conversion took around 56 seconds.

I just used Apple's 'QuickTime Player' to do an export to 1080p while checking the HEVC checkbox. Both systems also running the same macOS (10.13.2).

Yes...my HTPC at home is an i7-6700K, and it has the Intel Quicksync options in Handbrake for h264 and HEVC...unbelievably quick rendering with almost no CPU usage, since it's routed through some little special encoder portion of the chip!

Unfortunately, my 2015 Macbook Pro is stuck with a 4th Gen i7...I am sure even a low end 2 core 13" Macbook Pro circa 2017 would export quicker in HEVC due to the new encoders. The 8 bit HEVC option is not available for my Mac in Compressor, only 10 bit...go figure on that one!

Paul

Please pray for me as I dive into the wonderful world of trying to make my HLG camera footage look like HDR...will begin exporting millions of little test ProRes files to YouTube using various settings, in he hope that one day, I may be able to see what my camera can create. :-)

Now for my reading list, step 1...

http://downloads.bbc.co.uk/rd/pubs/papers/HDR/BBC_HDRTV_PQ_HLG_Transcode_v2.pdf

After some more extensive export and transcode testing, here is what I have learned.

FCPX compatibility with YouTube...the ONLY types of files that can be exported out of FCPX that "earn" a YouTube HDR badge, are HDR PQ exports as PRORES. HDR HLG projects, regardless of any other settings, will not earn the HDR badge once uploaded to YouTube. Also, any type of mp4 file I can generate, either exporting a PQ project, or transcoding of an HLG ProRes file through Catalyst Browse, will not earn the HDR badge. The only type of file that will play back on my TV as HDR, is HEVC transcodes, including those from FCPX HLG projects, but these successful HDR playable local files, WILL NOT earn the YouTube HDR badging.

So for local file viewing, I must export HEVC at 1-2 minutes per second of footage, resulting in an HDR experience of lifted blacks and raised REC709 gamma, and no apparent HDR highlight improvements.

For sharing HRD footage, I must export PQ ProRes files, which results in 20GB files that have ultra crushed blacks with slammed gamma and are not viewable in any meaningful manner, but are HDR per YouTube.

I have run out of FCPX options here...open to any suggestions or questions.

Paul

*EDIT The two ProRes files below play as HDR on YouTube app on my Samsung Galaxy S8 phone and look pretty damn good, aside from the phones screen adding a horrendous magenta cast.

https://youtu.be/RQeMVK7CXSk

https://youtu.be/nA2XOkON4g0

So it turns out Handbrake makes a special 10 bit h264/HEVC version, available on their daily builds, the one not labeled CLI.

https://handbrake.fr/nightly.php


It is able to retain HDR metadata, and as a result, I am able to transcode PQ ProRes files in a manageable time and size, to upload as working HDR files for YouTube. Using the link above, download the non CLI daily build, set your video encoder to 10 bit h264, but ensure you select profile to HIGH10. The file that works on YouTube on my TV and phone app, will activate HDR when played locally, but the video goes whacky, since I chose level 5.2, which may be too new for the TV to know what to do with. Regardless, below you will find the ProRes LT PQ file converted to 100Mbps 10 bit h264 level 5.2 in handbrake.

https://youtu.be/5okbTvfgR6s

Thank you for the research on all this Paul. Thankfully, I'm avoiding all this mess for now as I have very limited playback of such material. Also quite dissapointed with Apple in their move to 10-bit color displays, but limited to the Display P3 color space.

Currently, everything I do is based around sRGB and Rec 709 (which are pretty close to each other). That covers both my photography and videography needs. And I remain on HD for now. I was hoping the iMac Pro would have a display capable of Adobe RGB so I could finally move to that space for photography. Nope. And the HDR capability of the iMac Pro display seems to be some consumer-grade version.

So until the industry gives me a way to capture, edit and display Adobe RGB and HDR Rec 2020 material at a reasonable price, I'm staying away.

I think the BlackMagic Design Mini Monitor 4K is like $200 brand new, and does HDR...if I had a 1000 nit TV, I might be tempted to pick one up.

The last video I posted, the Handbrake one, was a FCPX project, with an HDR Tools PQ to HLG effect...not what is recommended by Apple. So below, is a video clip that follows the posted guidelines from Apple and Google, on how to export and post an HDR video to YouTube. Project settings Wide Gamut HDR PQ. Project files on timeline are HLG, with HLG to PQ HDR Tools effect thrown at them to conform tomPQ timeline, as specified by Apple. HLG clips set to color space BT2020 HLG. Exported as ProRes, then converted to 10 bit h264 by Handbrake, high10 level 5.2. The result below is basically wheat you get when you take files direct from camera, in what Sony calls "Instant HDR", and throw them at YouTube instantly...looks a bit dark to me...how does it look to you?

Paul

https://youtu.be/cDkmw6htv4o

Found an article written on how to take Sony S-log footage and turn it into HDR material for YouTube, using the free version of Da Vinci Resolve on a PC, or Mac I presume. The article is specific on how to use Resolve and grade on a normal SDR display.

Grading HDR Video on a Rec.709 Monitor (For YouTube & Beyond) ? Wesley Knapp (http://www.wesleyknapp.com/blog/hdr)

Paul

Thank you for the research on all this Paul.
+1
It has been really helpful.

The “4K HDR 10 bit h264 Handbrake transcode of ProRes LT PQ HDR/HLG” in post #30 “pops” really good. On the left side of the screen shot there is a grey-looking house with a couple a couple bright lights that shows up well, and another building just to it’s left. The clothing on the medics show up well and while their vehicle lights are bright the open door has nice detail. It seems a good compromise especially for your news reel.

With regard to the post #32, at first glance, it looks more, uh, shall we say, a bit muddy? But on the plus side the lower lights don’t look so burned out (do the upper and lower one blink alternatively?), one can still see detail in the house on the left, the medics clothes have some detail but not quite as much as in #30. For TV viewing #30 might work better, but for reality … #32???

Disclaimer: I'm no colorist.

For me, thinking out loud, this whole thing about moving to HEVC 10-bit has me a bit bummed out. Just spent the better part of a couple days searching for a video card to run H.265 on my Mac Pro 5,1 and it doesn’t look good. It appears that every option is fraught with undesirable compromises and major expense. Thinking now that I pulled the trigger too soon in selling the AX100.

Agreed John, #30 was using the "wrong" HDR filter (PQ to HLG), the exact opposite of what Apple and Google expressly declare should be used with HLG footage on PQ timeline. #32 is an example of "by the book", following their explicit instructions, which as you said, looks all dark and muddy to me too. On my Samsung Galaxy S8 phone with Mobile HDR display, #30 and #32, look identical with HDR active...so go figure! All clips uploaded as 10 bit 100Mbps h264.

Sony is calling their HLG "Instant HDR", which I think you can agree, is simply NOT THE CASE. There was nothing instant about this...I have something like 20-30 test uploads over several days of trying to figure out how the heck to get working HDR material onto the primary site for user uploaded HDR content. Sony Catalyst Browse was no help, neither is Vegas 15.

For giggles, after viewing this new and amazing Sony HLG HDR material from their newest camera, take a peek at some old Z150 SDR 4K footage in this post, and I dare you to tell me the "Instant HDR" stuff looks even close to as good. :-)

http://www.dvinfo.net/forum/sony-4k-ultra-hd-handhelds/526187-x70-full-pp-color-correction-settings-6.html#post1917652

Grading HDR Video on a Rec.709 Monitor (For YouTube & Beyond) ? Wesley Knapp (http://www.wesleyknapp.com/blog/hdr)

Paul
That's just silly, you cannot grade HDR on an SDR monitor.

That's just silly, you cannot grade HDR on an SDR monitor.

I have to agree with Cary here. This is why for photography I'm sticking with sRGB. Until Apple comes out with a display cabable of AdobeRGB, I wouldn't be able to properly edit AdobeRGB photos. Same would hold true for video content. Just happy I at least have a 10-bit computer display now to properly see/edit 10-bit 4:2:2 HD content (Rec 709).

Ricky -
Old Mac (2012 12-Core Mac Pro, 32 GB RAM, Radeon HD 5870 1 GB).
Just wondering, with regard to your 2012 Mac Pro, do you given any thought to, or researched, updating the graphics card to handle HEVC? Trying to find someone who has been down that path is difficult and I’d be interested in anything you have to say on that subject. It’d be really nice to find an “out of the box” fix, but unfortunately, I haven’t found one yet.

Edit: In the news today was an item that said Apple Inc. is designing and making its own display screens for the first time at a secret [Ooooh... it's a secret!] facility near its California headquarters. ... testing small screens .... as it gears up for the next-generation of MicroLED screens...

Just wondering, with regard to your 2012 Mac Pro, do you given any thought to, or researched, updating the graphics card to handle HEVC? Trying to find someone who has been down that path is difficult and I’d be interested in anything you have to say on that subject. It’d be really nice to find an “out of the box” fix, but unfortunately, I haven’t found one yet.

NVIDIA has cards that support HEVC. The 1080ti for instance supports 10 bit hardware HEVC encoding.

You can use ffmpeg to use NVIDIA hardware encoding: use: -c:v hevc_nvenc as the video codec.
If your decoding is hardware as well (only 8 bit encoding is supported in GeForce cards) you can even run a full hardware path by specifying -hwaccel.

Ricky -

Just wondering, with regard to your 2012 Mac Pro, do you given any thought to, or researched, updating the graphics card to handle HEVC? Trying to find someone who has been down that path is difficult and I’d be interested in anything you have to say on that subject. It’d be really nice to find an “out of the box” fix, but unfortunately, I haven’t found one yet.

Sorry, but I've moved on to a 2017 10-Core iMac Pro as of December. The GPUs for Apple's pro Macs are often custom parts, so attempting to find a solution can be very tricky (never did that myself). Along with better CPU and GPU, there are often numerous other features you gain when moving to a completely new machine (e.g. newest wireless specs). I upgrade computers on average every 3 to 4 years.

Yeah, Apple likes to keep even small but very useful items in reserve for the next years "model", just to push people to upgrade faster..."Well, the 2014 looks the same as the 2015, but it's got AC wireless!".

The Nvidia encoders don't have much use except for very specialized programs as far as I have seen...better off with Quicksync. From my limited research, the Nvidia encoders are about the same quality as Quicksync when transcoding at high bitrates, but the Nvidias go to crap as you force any serious compression on them.

Paul

So I guess I found the issue with my HLG exports from FCPX. Even though FCPX has a selection for HDR HLG projects, it will NOT EXPORT them as HDR files...FTW. The only option is a full PQ transformation.

And after even more testing, here is some additional useful data about the uselessness of HLG.

Exported raw Z90 HLG MXF HDR file directly to YouTube...it accepted it, but says "Sorry, not HDR".

I then used Catalyst Browse to transcode the raw XAVC-L HLG clip to both 8 bit XAVC-S and 10 bit XAVC-Intra...both did not receive any HDR metadata, meaning not only were they not able to flag as HDR on YouTube, they also fail to be recognized as HDR clips in FCPX, even if I wanted to convert to PQ.

So Catalyst Browse doesn't pass HDR metadata when transcoding...nice to know Sony is doing a bang up job on the "Instant HDR" front. It is worth noting that Catalyst Browse is full of the word HLG, BT202, HDR etc, but these don't seem to have any real world application or meaning. :-|

Paul

How about some Da Vinci Resolve 14 tests? You asked for it, well, not really, but here are the results.

Utter failure. Used the YouTube HDR guide, which BTW states that YouTube accepts HLG...set all the HLG settings and project as specified by YouTube. Exported out as 10 bit HEVC in Resolve, then uploaded to YouTube. FAIL...no HDR flag. The 7 second HEVC export took 11 minutes.

For those not aware, you can shoot S-log on the Z90 and render it on a PQ timeline to make HDR. Since any HDR content you must create at this time seems to REQUIRE PQ, it would seem to make much much more sense to just shoot S-log instead of this hybrid REC709 gamma with some HDR log highlights, since HLG is not really looking usable at this point.

Anyone care to test Premier Pro? I would download the trial version of it but at this time I have too much of a headache to continue tonight.

https://youtu.be/2boMcUWgugM

Resolve HLG to REC709 2.2 gamma h264 conversion...for the curious wondering how the "works on SDR TV's!" part of HLG looks. Note blown out highlights.

https://youtu.be/8rumsmAB6hU

How about some Da Vinci Resolve 14 tests? You asked for it, well, not really, but here are the results.

Utter failure. Used the YouTube HDR guide, which BTW states that YouTube accepts HLG...set all the HLG settings and project as specified by YouTube. Exported out as 10 bit HEVC in Resolve, then uploaded to YouTube. FAIL...no HDR flag. The 7 second HEVC export took 11 minutes.

For those not aware, you can shoot S-log on the Z90 and render it on a PQ timeline to make HDR. Since any HDR content you must create at this time seems to REQUIRE PQ, it would seem to make much much more sense to just shoot S-log instead of this hybrid REC709 gamma with some HDR log highlights, since HLG is not really looking usable at this point.

Anyone care to test Premier Pro? I would download the trial version of it but at this time I have too much of a headache to continue tonight.

https://youtu.be/2boMcUWgugM

I am sorry, but I posted in this thread *for your benefit* how to make an HLG video in Resolve that YouTube will recognize, but you chose to ignore the instructions, despite my also posting video examples that work based on the workflow. What exactly are you trying to prove? That if one doesn't know what one is doing you get bad results? Resolve will easily produce an HLG YouTube compliant video. Why not try following the instructions I provided and stop wasting your time and that of others who are plowing through your failed experiments. I like your video example.

Mark, the posted YouTube link was following YouTubes posted instructions. I made an additional video clip earlier with "luminance mapping" checked off, but it also failed the HDR test for YouTube. Here is the clip following your instructions, save for rendering in HEVC, as upload several hours ago. I will render another in your specified format just to triple check...a success would assume Resolve can only pass through HLG metadata for HDR when exporting in it's own custom codec?

https://youtu.be/xzObgto9LLQ

Mark, below is the DNxHR HQX HLG HDR QT AARP DEA HIPPA upload, and it indeed does throw the HDR flag on YouTube. I will run the file through Handbrake to see if a less than 800Mbps (100MB/s!!!!!!) file size is possible with your HLG export workflow. :-D

*also throws flag on Resolve to ProRes export, not sure why straight 10 bit HEVC out of Resolve doesn't.

https://youtu.be/DxFzG2w0Pzo

Shot some daylight test footage. The clip below was shot in HLG1 with BT.2020 color in 4K. Converted it to PQ HEVC and upload to YouTube as with the previous clips. Used FCPX. Results are uninspiring to me visually...looks pretty dull and flat. Anything I upload to YouTube in HLG spec comes out with a weird magenta shadow tint, viewing on the only HLG capable viewer I have, so I don't do that anymore.

I shot a second series of the same shots in 1080p HLG/REC709, which was pretty pointless, as REC709 is incompatible with PQ HDR10 in any settings I am able to see. Not really sure why they include REC709 as an option with HLG...I am unable to even render out a usable simple SDR REC709 with those clips. Seems that the "HLG" S log portion begins at 70IRE, and anything above that when I try to convert to REC709 just hard clips...so imagine a 70IRE white/color clip.

:(

https://youtu.be/fHd9OqEx8fI

The clip below was shot in HLG1 with BT.2020 color in 4K. Converted it to PQ HEVC and upload to YouTube as with the previous clips. Used FCPX. Results are uninspiring to me visually...looks pretty dull and flat. Anything I upload to YouTube in HLG spec comes out with a weird magenta shadow tint, viewing on the only HLG capable viewer I have, so I don't do that anymore.

The uninspiring shot is in my opinion due to the lack of contrast and the high black levels (especially the wide shot on the parking lot).
I think the white balance in the last tire short shows very blue.

I shot a second series of the same shots in 1080p HLG/REC709, which was pretty pointless, as REC709 is incompatible with PQ HDR10 in any settings I am able to see.

Rec.709 is fine, you just have to convert the Rec.709 gamut to the Rec.2020 gamut.