User17118107778795745250 (WHAT FILMS) asked a question.
DOLBYVISION ERROR MULTIPLE LEVEL2
Hello,
I'm having trouble with a DOVI project and wanted to know if you ever knew what for and how:
I have an IMF master that is trouble free to start with. (IMF REC2020 PQ - MasterDisplay BT2020,D65,ST2084,1000)
Metafier doesn't see any errors if I validate.
After importing the IMF into RESOLVE without any action on my part
if I export an IMF or even just the METADATAS from RESOLVE
I get errors on all :
ERROR: Multiple Level2 Targets with similar Max Luminance 600
ERROR: Multiple Level2 Targets with similar Max Luminance 1000
I've noticed that 2 display targets have been added that are not in the original xml:
ID 28 - 600-nit, BT2020, ST.2084
ID 49 - 1000-nit, BT 2020, ST.2084
In the original, only these display targets appear:
ID 1 - 100 nit BT.709, BT 1886
ID 27 - 600 nit, P3, D65, ST.2084
ID 48 - 1000 nit, P3, D65, ST.2084
(The strange thing is that RESOLVE has a target ID 49 which corresponds to Mastering Display(1000-nit, BT 2020, ST.2084 ))
Do you know why RESOLVE adds these targets?
The problem was tested on 3 different versions of Resolve (PC and MAC):
-18.2
-18.5
-18.6
Thanks for your help,
I'm having trouble with a DOVI project and wanted to know if you ever knew what for and how:
I have an IMF master that is trouble free to start with. (IMF REC2020 PQ - MasterDisplay BT2020,D65,ST2084,1000)
Metafier doesn't see any errors if I validate.
After importing the IMF into RESOLVE without any action on my part
if I export an IMF or even just the METADATAS from RESOLVE
I get errors on all :
ERROR: Multiple Level2 Targets with similar Max Luminance 600
ERROR: Multiple Level2 Targets with similar Max Luminance 1000
I've noticed that 2 display targets have been added that are not in the original xml:
ID 28 - 600-nit, BT2020, ST.2084
ID 49 - 1000-nit, BT 2020, ST.2084
In the original, only these display targets appear:
ID 1 - 100 nit BT.709, BT 1886
ID 27 - 600 nit, P3, D65, ST.2084
ID 48 - 1000 nit, P3, D65, ST.2084
(The strange thing is that RESOLVE has a target ID 49 which corresponds to Mastering Display(1000-nit, BT 2020, ST.2084 ))
Do you know why RESOLVE adds these targets?
The problem was tested on 3 different versions of Resolve (PC and MAC):
-18.2
-18.5
-18.6
Thanks for your help,
Thank you for reaching out to us with your question.
The L2 metadata entries that you see inside a v4.0 XML are automatically generated by the system, for backward compatibility with legacy playback devices that are in the market. And the system is designed to insert target trims that match the mastering display that you select for the project that you are using.
In your case, I suspect the original IMF that you are importing was created with a P3 Mastering display. When you import this IMF into a project in Resolve that has a Mastering Monitor set to Rec2020, Resolve will insert Rec2020 targets for the L2 metadata that it creates, during the IMF creation process.
The workaround for this is to import the IMF into a project in Resolve that has the Mastering Monitor set to P3, to match that of the original IMF.
Newer versions of Resolve will now give you a warning if there is a mismatch between the imported metadata parameters, and that of the project you are working in.
Let us know if this works for you, or if you have any further questions.
Thanks.
/-
Dolby (Burbank)