You gain extra quality/brightness from the FEL.
Dolby Vision now possible through MP4 Mux.
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.
Re: Dolby Vision now possible through MP4 Mux.
What would be the command line to accomplish this?RESET_9999 wrote:of course, no different than any HDR10 + P8 encode.
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.
only if you compare it to DV on a device that support FEL.
I posted my cli a couple post ago.What would be the command line to accomplish this?
Re: Dolby Vision now possible through MP4 Mux.
Workflow 6-9 using your scripts?
I was referring to using dovibaker
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.
its a ffmpeg x265 cmd and can be used wit the dovi baker. Just change the variables.
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mattiswise
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Re: Dolby Vision now possible through MP4 Mux.
How would i bake the EL into the BL?
This is for FEL titles only correct?
Can someone translate this into noob for me please?
This is for FEL titles only correct?
Can someone translate this into noob for me please?
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speeddemon
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Re: Dolby Vision now possible through MP4 Mux.
Just curious, do you know why this produces better results?RESET_9999 wrote: ↑Tue Jun 27, 2023 2:14 pmThe only thing I don't do in the video is the project image scaling. I found out that if you set your project to 1080p with cubic algo, it produces much better metadata that are almost identical to the original.speeddemon wrote: ↑Mon Jun 26, 2023 10:02 pmAside from the time/effort involved. Is there a downside to doing this and/or anything you miss out on or that could be improved upon further from your tutorial?
https://ibb.co/r2tMX6n
Also, have you considered adding this note to the video description on YouTube? It might help others who follow along, but don't come read this message.
Why set the project to CMv4.0 instead of CMv2.9 then? Would you not get better results just initially setting to CMv2.9 to avoid the issues you demonstrated here with CMv2.9 when CMv4.0 analysis is used?RESET_9999 wrote: ↑Tue Jun 27, 2023 2:14 pmYour project set to CMV4.0 will produce L2 trims. My script by default, will remove them as explained recently in this thread.speeddemon wrote: ↑Mon Jun 26, 2023 10:02 pmAlso, what would it take to analyze for multiple trims or does it already do this? Have you ever attempted this?
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.
This video doesn't show issues. It just shows the difference between the format.speeddemon wrote: ↑Tue Jun 27, 2023 4:25 pmWhy set the project to CMv4.0 instead of CMv2.9 then? Would you not get better results just initially setting to CMv2.9 to avoid the issues you demonstrated here with CMv2.9 when CMv4.0 analysis is used?
CMV4.0 is the latest dolby algo and it produces better metadata and Dolby recommends using it even if you're going to deliver in CM v2.9
NOTE It’s currently recommended for all users to choose Dolby Vision v4.0 for analysis
and trimming, as it provides superior results. If you’re required to deliver Dolby Vision v2.9
metadata when mastering for backwards compatibility, DaVinci Resolve can now export
v2.9 metadata from projects using v4.0 workflows.
Re: Dolby Vision now possible through MP4 Mux.
do we need to download ALL these tools listed in the readme seperately?
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speeddemon
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Re: Dolby Vision now possible through MP4 Mux.
Maybe it's just the camera, but it looks to me like CMv4 analysis presented in CMv2.9 is crushing shadows in this image:RESET_9999 wrote: ↑Tue Jun 27, 2023 4:33 pmThis video doesn't show issues. It just shows the difference between the format.speeddemon wrote: ↑Tue Jun 27, 2023 4:25 pmWhy set the project to CMv4.0 instead of CMv2.9 then? Would you not get better results just initially setting to CMv2.9 to avoid the issues you demonstrated here with CMv2.9 when CMv4.0 analysis is used?
CMV4.0 is the latest dolby algo and it produces better metadata and Dolby recommends using it even if you're going to deliver in CM v2.9
NOTE It’s currently recommended for all users to choose Dolby Vision v4.0 for analysis
and trimming, as it provides superior results. If you’re required to deliver Dolby Vision v2.9
metadata when mastering for backwards compatibility, DaVinci Resolve can now export
v2.9 metadata from projects using v4.0 workflows.

Is that not the case in real life?
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.
My camera dynamic range is very limited. it will always make the black crush or blown highlight worse than they are in reality.
In reality that shot does look darker but not as crushed as you can see in the video. The video just shows how avg_pq metadata generation is different in cmv4.0.
If you compare cmv4.0 vs cmv2.9 with the same L1, its closer but overall, CMV4.0 always outperforms 2.9.
https://www.youtube.com/watch?v=c8aySWARxyM
FYI, most of the movies(90%+) are done in CM v4.0 but delivered in CM v2.9. You can know that by looking at the avg_pq metadata minimum: 10nits in 4.0 and 2.5nits in 2.9.
In reality that shot does look darker but not as crushed as you can see in the video. The video just shows how avg_pq metadata generation is different in cmv4.0.
If you compare cmv4.0 vs cmv2.9 with the same L1, its closer but overall, CMV4.0 always outperforms 2.9.
https://www.youtube.com/watch?v=c8aySWARxyM
FYI, most of the movies(90%+) are done in CM v4.0 but delivered in CM v2.9. You can know that by looking at the avg_pq metadata minimum: 10nits in 4.0 and 2.5nits in 2.9.
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speeddemon
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Re: Dolby Vision now possible through MP4 Mux.
Thanks for the explanation!RESET_9999 wrote: ↑Tue Jun 27, 2023 4:53 pmMy camera dynamic range is very limited. it will always make the black crush or blown highlight worse than they are in reality.
In reality that shot does look darker but not as crushed as you can see in the video. The video just shows how avg_pq metadata generation is different in cmv4.0.
If you compare cmv4.0 vs cmv2.9 with the same L1, its closer but overall, CMV4.0 always outperforms 2.9.
https://www.youtube.com/watch?v=c8aySWARxyM
FYI, most of the movies(90%+) are done in CM v4.0 but delivered in CM v2.9. You can know that by looking at the avg_pq metadata minimum: 10nits in 4.0 and 2.5nits in 2.9.
What would it take to actually export properly in CMv4 outputting proper L2 & L8?
Also, how far off are these results from what a professional colorist would come up with?
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RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.
You can't edit L2/L8 without a DV license so what you get is the default values from the dolby algo.speeddemon wrote: ↑Tue Jun 27, 2023 7:16 pmWhat would it take to actually export properly in CMv4 outputting proper L2 & L8?
Also, how far off are these results from what a professional colorist would come up with?
see my explanation of why you should remove them here: viewtopic.php?p=137417#p137417
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speeddemon
- Posts: 77
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Re: Dolby Vision now possible through MP4 Mux.
Is that a Dolby Encoding Engine license or a special DaVinci DV license? I'm wondering if I already have access to that through my work.RESET_9999 wrote: ↑Tue Jun 27, 2023 7:57 pmYou can't edit L2/L8 without a DV license so what you get is the default values from the dolby algo.speeddemon wrote: ↑Tue Jun 27, 2023 7:16 pmWhat would it take to actually export properly in CMv4 outputting proper L2 & L8?
Also, how far off are these results from what a professional colorist would come up with?
see my explanation of why you should remove them here: viewtopic.php?p=137417#p137417