DVDFab v12.0.7.3 (Win) Pumping of brightness at the beginning or end of a scene during the film

[LEXXE]

I have a problem with my DVDfab/MKV Passthrough Dolby Vision movies. It's only now that I've noticed that there is pumping of brightness at the beginning or end of a scene during the film. When I rip this movie to MP4 / Dolby Vision with DVDfab, this phenomenon is not noticeable. With MakeMKV, this problem is also not noticeable. Is it a hardware problem or is it a DVDfab problem? I'm grateful for any help. Thanks

[october262]

I have a problem with my DVDfab/MKV Passthrough Dolby Vision movies. It's only now that I've noticed that there is pumping of brightness at the beginning or end of a scene during the film. When I rip this movie to MP4 / Dolby Vision with DVDfab, this phenomenon is not noticeable. With MakeMKV, this problem is also not noticeable. Is it a hardware problem or is it a DVDfab problem? I'm grateful for any help. Thanks

see if post #1 will help - https://forum.dvdfab.cn/forum/uhd-co...through-mp4-dv

[LEXXE]

Thank you for your reply. I read this post and am amazed by it. If I create a film with MKV passthrough including Dolby Vision, the Dolby Vision logo is displayed on my TV and the TV settings also switch to Dolby Vision. My player is a Zidoo UHD 3000.

[LEXXE]

I don't understand, the same film is used. With MakeMKV, DolbyVision works perfectly with single layer and that is also via passthrough. Only DVDfab MKV Passthrough has problems with brightness pumping.

[Mona]

The QA team will test it.
Please give us a dvdfab_internal log file to better check it out. Thank you.

[LEXXE]

Hi Mona, thank you for wanting to help me. As mentioned before, the movie was ripped via passthrough, just like MakeMKV. But unfortunately there is a brief brightness pump in each new scene. 20220616-server.log dvdfab_internal.log fabcheck_internal.log burn_internal.log

[Mona]

I have a problem with my DVDfab/MKV Passthrough Dolby Vision movies. It's only now that I've noticed that there is pumping of brightness at the beginning or end of a scene during the film.

The source is an ISO file LOTR_FELLOWSHIP_OF_THE_RING_P1, work profile
MP4.4K.DolbyVision.H265.10Bit
MKV.4K.DolbyVision.H265.10Bit

To confirm, it was the result created using profile MKV.4K.DolbyVision.H265.10Bit that gives you the issue of "Pumping of brightness at the beginning or end of a scene during the film", correct?

[LEXXE]

Yes that is correct. I chose this profile (MKV.4K.DolbyVision.H265.10Bit) because it works fastest to get a video file with Dolby Vision (One Layer).
Maybe it's because of my Oled TV (Panasonic HZ2000) that outputs this file incorrectly?
I don't have this problem with the profile (MP4.4K.DolbyVision.H265.10Bit).

[Mona]

Thank you for the confirmation. We will test with the source we have and see if we could duplicate the problem. I will update you as soon as possible.

[LEXXE]

Thank you