I have a sequence in 2100HLG (rec2020 color space) that I’m trying to export in hevc (h265) for submission to youtube. I’m pretty sure I’m doing everything right, but youtube refuses to publish it in HDR…
Using the guidelines here: https://support.google.com/youtube/answer/7126552#zippy=%2Cupload-requirements
I’ve tried several exports, but the most exact to their specs are the two following mediainfos:
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6.2@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 15 s 15 ms
Bit rate : 79.0 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.159
Stream size : 141 MiB (100%)
Language : English
Encoded date : 2024-02-27 09:20:24 UTC
Tagged date : 2024-02-27 09:20:24 UTC
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
Codec configuration box : hvcC
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6.2@High
HDR format : SMPTE ST 2086, HDR10 compatible
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 15 s 15 ms
Bit rate : 78.6 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.158
Stream size : 141 MiB (100%)
Language : English
Encoded date : 2024-02-27 09:05:49 UTC
Tagged date : 2024-02-27 09:05:49 UTC
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : HLG
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0050 cd/m2, max: 1000 cd/m2
Codec configuration box : hvcC
Is there something glaring I’m missing?
These certainly play back fine locally in HDR but once uploaded to youtube they are interpreted as non-HDR (though they look relatively fine, just in SDR, like youtube is silently tonemapping)