HDR mezzanine

[jpiesing]

There is an interest in creating test content for static and dynamic HDR. That in turn needs mezzanine content that is in HDR.

@haudiobe provided the following links on possible content.

In 3GPP, we collected a database of content including HDR and SDR.

Details on the sequences can be found in TR 26.955 here: https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=3741

The sequences can be accessed here: https://dash-large-files.akamaized.net/WAVE/3GPP/5GVideo/ReferenceSequences/. All sequences include copyright statements and metadata.

An overview of the sequences are provided here: https://dash-large-files.akamaized.net/WAVE/3GPP/5GVideo/ReferenceSequences/sequences.csv

@rbouqueau mentioned the following;

The HDR sequences from Netflix I talked about:
https://opencontent.netflix.com/

It was also mentioned that Ateme and Harmonic may be able to generate (dynamic) HDR from SDR.

[nicholas-fr]

Initial HDR10 mezzanine streams have been generated and can be found here:
https://dash-large-files.akamaized.net/WAVE/Mezzanine/development/2024-01-02/

Files (each with corresponding JSON):
sol_L1_1920x1080@25_60.mp4
sol_L1_1920x1080@30_60.mp4
sol_M1_2560x1440@25_60.mp4
sol_M1_2560x1440@30_60.mp4
sol_O1_3840x2160@25_60.mp4
sol_O1_3840x2160@30_60.mp4
sol_O1_3840x2160@50_30.mp4
sol_O1_3840x2160@50_60.mp4
sol_O1_3840x2160@60_30.mp4
sol_O1_3840x2160@60_60.mp4

Based on updated HEVC test vector sparse matrix here (now including cud1, clg1, chd1 in addition to chh1):
https://docs.google.com/spreadsheets/d/1Bmgv6-cfbWfgwn7l-z0McUUI1rMjaWEwrN_Q30jaWk4/edit?usp=sharing

They are based on the Netflix Sol Levante asset found here (CC BY 4.0) - thanks to Romain for mentioning them:
http://download.opencontent.netflix.com.s3.amazonaws.com/SolLevante/hdr10/SolLevante_HDR10_r2020_ST2084_UHD_24fps_1000nit.mov
http://download.opencontent.netflix.com.s3.amazonaws.com/SolLevante/imf/SolLevante_IMF_DolbyVision_PQP3D65_UHD_24fps/CPL_0a207596-a0f5-458a-811e-a97a4286d00c.xml

Next steps:

• Create HLG10 mezzanine streams using HLG source of EBU Croatia sequence.
• Resolve issues found with HDR10 streams if any.
• Create remaining missing HDR10 streams (including those for splicing tests: A1 / AD-A1 labelled streams).
• Update mezzanine scripts for HDR metadata handling (ST2086, MaxFALL, MaxCLL) - initial streams have been generated using some hardcoded values.
• Add dynamic metadata to HDR10 mezzanine streams (e.g. ST2094-10, ST2094-40).