I am trying to export HDR for YouTube in Compressor from FCPX 10.4 and I keep getting this warning. "Using an 8 bit codec with HDR content may affect video quality". But it is was shot on Panasonic VLogL at 10bit and was setup in FCPX as wide gamut. Can anyone tell me why I am getting this warning and how to fix it?
iMac (Retina 5K, 27-inch, 2017), macOS High Sierra (10.13.2), 32 Gb Ram, 8 Gb Video
The YouTube preset is H.264, and it does not use a format that's 10-bit capable. You need to export either a ProRes 422 HQ or higher file from FCP, or use Compressor creating an HEVC 10-bit preset. Be warned HEVC 10-bit is really, really slow. Your choice: large high res file with long upload, or small file with longer encode.
The YouTube preset is H.264, and it does not use a format that's 10-bit capable. You need to export either a ProRes 422 HQ or higher file from FCP, or use Compressor creating an HEVC 10-bit preset. Be warned HEVC 10-bit is really, really slow. Your choice: large high res file with long upload, or small file with longer encode.
I see. You're using the default YouTube preset.
Make a copy of the preset in Compressor. Change the default codec from H.264 to HEVC. Then set the Profile to 10-bit color.
The problem is not with hoe the clips were recorded but how they are being exported. It seems that you are exporting using the youtube destination and probably that will create an H264 file. I am guessing that this is where the 8bit limitation is showing.
It’s not 8-bit and yes, it’s true FCPX doesn’t display the bit depth, but it does display the color profile of the gh5 .mov files. The color profile shows as Rec. 2020 HLG. Those files are 10-bit 422 HLG from the gh5. Should not be getting an 8-bit file warning.
Not seeing that if I use ProRes 4444 for the 4K output, but it probably depends on what setting you're using in Compressor. I assume you're using the HDR Tools HLG to PQ conversion in FCP.
YouTube now supports HDR. I have tried both doing this through the Compressor directly to YouTube and that is where the warning shows and sharing as a master file at ProRes 422HQ which is surely 10 bit. Also the exported file, looks very different from what I see in the viewer of FCPX and I am assuming that is because my iMac is not HDR.
This seems like a glitch, or a constant warning regardless of the bit depth that is used. I get the same thing using 10-bit 422 HLG footage (.MOV) from the Panasonic GH5. FCPX reads the footage as 2020 HLG in the metadata. How in the world can that be considered an 8-bit video file?
I have no idea if it's going to be changed. Probably not for some time as the vast majority of content on YT is still H.264. Currently there is very little HDR generated output, and far, far fewer HDR capable displays. 4K HDR 10-bit honestly seems pretty pointless on an iPhone X screen.
Wait. How are you getting from 2020 HLG to 8-bit? FCP doesn’t display bit depth unfortunately.
Please show what you’re seeing. I don’t know what you’re talking about? Is the library set to wide gamut HDR?
It displays it as a warning after sharing to compressor. For example, as I am selecting a destination.
Could you please post a screenshot of what you're looking at where? Is the library set to wide gamut HDR? Is your project HDR Rec 2020? Are you outputting HDR? To which setting are you outputting?
I am not near my computer at this moment. I created an HDR project in FCPX 10.4 using a wide Gamut library and then set the project up as HDR PQ. i Am getting the warning in compressor.
I see, thank you for the information. Is the YouTube preset (H.264) going to be fixed in FCPX in the future, or is this related to the conflicting issue of YouTube VP9 and HEVC codecs?
I'm getting the same thing within FCPX .. export to YouTube. You can see from the screenshot that it's set to Wide Gamut - Rec. 2020 HLG .. for YouTube. The warning shows up when exporting to YouTube, Vimeo, and Apple 4k devices.
Using an 8 bit codec with HDR content may affect video quality
