[DDVT Tool] Dolby Vision RPU Demuxing / Injecting / Editing. - Page 58

ManilaByNight · 25th October 2025, 23:53

Some development .....

I double clicked the mouse and hit the space bar and for some reason the removal process started but I am perplexxed why it would do this? Shouldn't the process start immediately the moment I hit the enter key after typing in the command line? Why would it do this or is there something wrong here?

Thanks.

Thaddäus · 2nd November 2025, 19:26

I have a question about the profile and whether I should choose to convert it:
My attempt is to mux a DV-layer from a Web-source to it's HDR10-only UHD Blu-ray-counterpart. But I not just want to have the MKV, I want to mux it into a Blu-ray structure. I've only done it once before and IIRC here's what I did:

1. Demuxing BL and RPU from the DV-version with DDVT Demuxer
2. Converting the BL to a H.265 HDR10 1080p-version with low bitrate, e.g. 2500 kBit/s
3. Injecting the RPU into the converted BL to be come my new EL-layer
4. Muxing the Blu-ray source (as BL) and the newly created EL together into an ISO or Blu-ray folder using tsMuxeR

However, the DV-source I have has Profile 8 and when trying to demux it, I can choose between "No conversion", "Profile 8.1 HDR10" and "Profile 8.4 HLG". Which would be best for what I'm trying to do? I guess either just leaving it as it is or converting it to 8.1 would be the right choice, but I just wanted to check back.

GodzilaAvenger · 3rd November 2025, 08:17

Blu-rays use Profile 7 (P7) DV, which can be MEL or FEL. DDVT (and the underlying dovi_tool) can't convert P8 to P7.

Also, I'm a bit confused with your process. Why are you turning the BL into a 1080p stream and adding that in as the EL?

Thaddäus · 3rd November 2025, 19:17

I know Blu-ray usually use P7. I'm not really into all that stuff about the profiles, but I thought P7 is more or less the same just with a MEL or FEL-layer, which I'm trying to recreate with the 1080p-version plus the RPU-data.
Unfortunately I just can't find it right now, but I once saw a tutorial somewhere, where they did the exact same thing and when I tried it myself around the same time last year it also worked. So I just wanted to try it again, I just can't remember how exactly which settings I used to extract the DV-layer.

GodzilaAvenger · 4th November 2025, 22:23

P7 is either RPU on its own (MEL) or RPU plus a 1080p stream (FEL). The 1080p stream is the remainder of the original 12-bit video signal and when added to the BL would reconstruct it. When you add in an encoded version of BL as the EL you're probably messing up the tonemapping and brightness settings applied by the RPU since that RPU came from a web source that has calculated those parameters for only the BL, not BL+EL (and your EL is not the source EL anyways). Aside from this, I think the frame order of your encoded version won't match that of the BL (I ran into this when I wanted to inject the original EL into a re-encoded BL). Bottomline is, I don't think you need that 1080p stream and are better off just injecting the RPU into the BL.

Deithwen · 29th November 2025, 01:24

What's casuing this error? I'm trying to convert P5 file to P8

Code:

 == INFORMATIONS ========================================================================================================

Filename        : test.mkv
DV Filename     : test_[RPU_CONVERTED-P8.4]_[P8].xml

 == OPERATIONS ==========================================================================================================
	
[Extracting Video Layer]
Command: "D:\Programs\DDVT_v0.72.1_FULL\tools\mkvextract.exe" "C:\Users\Name\Desktop\New folder\test.mkv" tracks --ui-language en  0:"C:\Users\Name\Desktop\New folder\DDVT_NCgXO_TMP\temp.hevc"
Done.

[Creating DV RPU Binary]
Command: "D:\Programs\DDVT_v0.72.1_FULL\tools\dovi_tool.exe" generate --xml "C:\Users\Name\Desktop\New folder\DDVT Demuxer (test_[RPU_CONVERTED-P8.4].bin).log""C:\Users\Name\Desktop\New folder\test_[RPU_CONVERTED-P8.4]_[P8].xml" --canvas-width 1920 --canvas-height 1080 --rpu-out "C:\Users\Name\Desktop\New folder\DDVT_NCgXO_TMP\RPU-CREATED.bin"
Parsing XML metadata...
Error.
.
 == ERROR(S) ============================================================================================================

1 Error(s) during processing.

 == LOGFILE END =========================================================================================================

sk2316 · 5th January 2026, 01:20

How to Convert a Dolby Vision Profile 8 file to Profile 7?

GodzilaAvenger · 5th January 2026, 19:33

I don't think you can, at least not with DDVT. There's a small chance dovi_tool supports it but I'm not sure so check it's documentation.

sk2316 · 6th January 2026, 04:03

Quote:

Originally Posted by GodzilaAvenger

I don't think you can, at least not with DDVT. There's a small chance dovi_tool supports it but I'm not sure so check it's documentation.

Kuler087 [DoVi_Scripts]
In the next Beta, there will be a way to encode profile 7 FEL/MEL but it will require DEE. It will even have the option to tone map the base layer to lower brightness like the studios often do.

JazzCZ · 8th January 2026, 14:19

I'm not super familiar with how HDR works but can I extract the DV metadata from one inferior source and inject it into a superior SDR stream?
I somehow managed it but the result is looking quite different from the original, and it wouldn't work unless I changed the transfer characteristics, color primaries, ... headers.

GodzilaAvenger · 8th January 2026, 21:37

As far as I know SDR uses the 8-bit BT.709 colorspace whereas HDR uses the 10-bit BT.2020 colorspace, so yeah, to go from SDR to HDR you need to do the things you mentioned. Once you have an HDR source (technically PQ when it doesn't have any metadata) you can add the DV metadata for dynamic tone mapping and brightness. I've never done SDR to HDR so I don't really know what exact steps it requires.

JazzCZ · 9th January 2026, 09:44

Re-thinking the approach, I think it's impossible to make it look the same. Injecting DoVi/HDR10+ normally works because it's only dynamic metadata on top of the "static" HDR layer that's baked into video stream whereas what I'm trying to do is forcing the BT709 colorspace to be displayed as BT2020, which will inherently result in incorrect colors

dbuser38 · 12th January 2026, 13:34

Is it possible that we can get a MACOS version of the DDTV tools ?

AgentXXL · 16th January 2026, 19:24

Quote:

Originally Posted by dbuser38

Is it possible that we can get a MACOS version of the DDTV tools ?

While you can run the scripts from Powershell on MacOS, many of the tools required for operations are only available on Windows. You could use VirtualBox or another VM engine and run a Win VM on your Mac.

-QfG- · 18th January 2026, 14:39

Quote:

Originally Posted by GodzilaAvenger

As far as I know DDVT can't bake the FEL into the stream. You can use the injector to inject the RPU.bin converted from P7 to P8 into the .hevc stream, but not the EL.hevc (i.e. you'll be losing the FEL).

That is not correct. You can inject the full EL layer in the BL layer without problems.

GodzilaAvenger · 18th January 2026, 22:23

Yes, but wouldn't injecting the EL into the BL result in the original P7 file?

Let's say you extract the BL, EL, and RPU. Then inject the EL into the BL, then convert the P7 RPU into P8 and inject that into BL+EL. Would that be playable? Wouldn't the player just ignore the EL at this point since P8 is not supposed to have the 1080p stream of the FEL?

-QfG- · 19th January 2026, 16:19

If you inject a RPU in a single layer Profile 7 file, the RPU erases the EL. You have BL + EL and now you inject a Profile 8 RPU, You have BL+RPU (without EL).

But, you can edit a Profile 7 RPU and inject this RPU in the EL and then you can Mux this modified EL into the BL.

frandan · 20th January 2026, 10:18

Hi to everyone.

I usually use Dovibaker for HDR ripping when FEL layer modifies the colors/luminance of the base layer. After the ripping, i inject the profile 8 RPU in the ripped HEVC file.

In the DDVT injector tool, I noticed the "RPU L6 to Video HDR" option, set by default on OFF: is this something about the modifications that the FEL layer makes on the luminance of the base layer? Thanks in advance for your answers, and excuse me for the probably not inherent question.

Fuso · 20th January 2026, 23:46

I decided to test the capabilities of the Xbox Series X regarding Dolby Vision playback through PLEX. P8 is not supported but "my" "fake Profile 5" is playing with no problems, even supports Dolby TrueHD Atmos. I will test also fake P5 mp4 with DTS:X but I don't see a reason not to be played correctly. But no Profile 7 support (even through fake P5 - the EL is ignored).

8th January 2026, 14:19	#1150 \| Link
JazzCZ Registered User Join Date: Sep 2014 Posts: 2	I'm not super familiar with how HDR works but can I extract the DV metadata from one inferior source and inject it into a superior SDR stream? I somehow managed it but the result is looking quite different from the original, and it wouldn't work unless I changed the transfer characteristics, color primaries, ... headers. Last edited by JazzCZ; 8th January 2026 at 14:21.

19th January 2026, 16:19	#1157 \| Link
-QfG- QfG Group Germany Join Date: Oct 2018 Location: Germany Posts: 278	If you inject a RPU in a single layer Profile 7 file, the RPU erases the EL. You have BL + EL and now you inject a Profile 8 RPU, You have BL+RPU (without EL). But, you can edit a Profile 7 RPU and inject this RPU in the EL and then you can Mux this modified EL into the BL. __________________ DDVT Tool Dolby Vision RPU Demuxing / Injecting / Editing.

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25th October 2025, 23:53	#1141 \| Link
ManilaByNight Registered User Join Date: Jun 2025 Posts: 4	Some development ..... I double clicked the mouse and hit the space bar and for some reason the removal process started but I am perplexxed why it would do this? Shouldn't the process start immediately the moment I hit the enter key after typing in the command line? Why would it do this or is there something wrong here? Thanks.

2nd November 2025, 19:26	#1142 \| Link
Thaddäus Registered User Join Date: Jun 2016 Posts: 33	I have a question about the profile and whether I should choose to convert it: My attempt is to mux a DV-layer from a Web-source to it's HDR10-only UHD Blu-ray-counterpart. But I not just want to have the MKV, I want to mux it into a Blu-ray structure. I've only done it once before and IIRC here's what I did: 1. Demuxing BL and RPU from the DV-version with DDVT Demuxer 2. Converting the BL to a H.265 HDR10 1080p-version with low bitrate, e.g. 2500 kBit/s 3. Injecting the RPU into the converted BL to be come my new EL-layer 4. Muxing the Blu-ray source (as BL) and the newly created EL together into an ISO or Blu-ray folder using tsMuxeR However, the DV-source I have has Profile 8 and when trying to demux it, I can choose between "No conversion", "Profile 8.1 HDR10" and "Profile 8.4 HLG". Which would be best for what I'm trying to do? I guess either just leaving it as it is or converting it to 8.1 would be the right choice, but I just wanted to check back.

3rd November 2025, 08:17	#1143 \| Link
GodzilaAvenger Registered User Join Date: Jul 2022 Posts: 166	Blu-rays use Profile 7 (P7) DV, which can be MEL or FEL. DDVT (and the underlying dovi_tool) can't convert P8 to P7. Also, I'm a bit confused with your process. Why are you turning the BL into a 1080p stream and adding that in as the EL?

3rd November 2025, 19:17	#1144 \| Link
Thaddäus Registered User Join Date: Jun 2016 Posts: 33	I know Blu-ray usually use P7. I'm not really into all that stuff about the profiles, but I thought P7 is more or less the same just with a MEL or FEL-layer, which I'm trying to recreate with the 1080p-version plus the RPU-data. Unfortunately I just can't find it right now, but I once saw a tutorial somewhere, where they did the exact same thing and when I tried it myself around the same time last year it also worked. So I just wanted to try it again, I just can't remember how exactly which settings I used to extract the DV-layer.

4th November 2025, 22:23	#1145 \| Link
GodzilaAvenger Registered User Join Date: Jul 2022 Posts: 166	P7 is either RPU on its own (MEL) or RPU plus a 1080p stream (FEL). The 1080p stream is the remainder of the original 12-bit video signal and when added to the BL would reconstruct it. When you add in an encoded version of BL as the EL you're probably messing up the tonemapping and brightness settings applied by the RPU since that RPU came from a web source that has calculated those parameters for only the BL, not BL+EL (and your EL is not the source EL anyways). Aside from this, I think the frame order of your encoded version won't match that of the BL (I ran into this when I wanted to inject the original EL into a re-encoded BL). Bottomline is, I don't think you need that 1080p stream and are better off just injecting the RPU into the BL.

5th January 2026, 01:20	#1147 \| Link
sk2316 Registered User Join Date: Aug 2014 Posts: 28	How to Convert a Dolby Vision Profile 8 file to Profile 7?

5th January 2026, 19:33	#1148 \| Link
GodzilaAvenger Registered User Join Date: Jul 2022 Posts: 166	I don't think you can, at least not with DDVT. There's a small chance dovi_tool supports it but I'm not sure so check it's documentation.

8th January 2026, 21:37	#1151 \| Link
GodzilaAvenger Registered User Join Date: Jul 2022 Posts: 166	As far as I know SDR uses the 8-bit BT.709 colorspace whereas HDR uses the 10-bit BT.2020 colorspace, so yeah, to go from SDR to HDR you need to do the things you mentioned. Once you have an HDR source (technically PQ when it doesn't have any metadata) you can add the DV metadata for dynamic tone mapping and brightness. I've never done SDR to HDR so I don't really know what exact steps it requires.

9th January 2026, 09:44	#1152 \| Link
JazzCZ Registered User Join Date: Sep 2014 Posts: 2	Re-thinking the approach, I think it's impossible to make it look the same. Injecting DoVi/HDR10+ normally works because it's only dynamic metadata on top of the "static" HDR layer that's baked into video stream whereas what I'm trying to do is forcing the BT709 colorspace to be displayed as BT2020, which will inherently result in incorrect colors

12th January 2026, 13:34	#1153 \| Link
dbuser38 Registered User Join Date: Jan 2026 Posts: 1	Is it possible that we can get a MACOS version of the DDTV tools ?

18th January 2026, 22:23	#1156 \| Link
GodzilaAvenger Registered User Join Date: Jul 2022 Posts: 166	Yes, but wouldn't injecting the EL into the BL result in the original P7 file? Let's say you extract the BL, EL, and RPU. Then inject the EL into the BL, then convert the P7 RPU into P8 and inject that into BL+EL. Would that be playable? Wouldn't the player just ignore the EL at this point since P8 is not supposed to have the 1080p stream of the FEL?

20th January 2026, 10:18	#1158 \| Link
frandan Registered User Join Date: Jun 2016 Posts: 14	Hi to everyone. I usually use Dovibaker for HDR ripping when FEL layer modifies the colors/luminance of the base layer. After the ripping, i inject the profile 8 RPU in the ripped HEVC file. In the DDVT injector tool, I noticed the "RPU L6 to Video HDR" option, set by default on OFF: is this something about the modifications that the FEL layer makes on the luminance of the base layer? Thanks in advance for your answers, and excuse me for the probably not inherent question.

20th January 2026, 23:46	#1159 \| Link
Fuso Registered User Join Date: Dec 2010 Posts: 41	I decided to test the capabilities of the Xbox Series X regarding Dolby Vision playback through PLEX. P8 is not supported but "my" "fake Profile 5" is playing with no problems, even supports Dolby TrueHD Atmos. I will test also fake P5 mp4 with DTS:X but I don't see a reason not to be played correctly. But no Profile 7 support (even through fake P5 - the EL is ignored).