How to tell if UHD backup is Dolby Vision

[plutoscarab]

I have some 4K UHD backup images (decrypted). How can I tell if the HDR is Dolby Vision? For example, this one says its Dolby Vision and this is what I see in MediaInfo on the biggest stream file. I was maybe expecting to see Dolby Vision on the "HDR format" line.

hdr.png (98.79 KiB) Viewed 8388 times

[MartyMcNuts]

I have some 4K UHD backup images (decrypted). How can I tell if the HDR is Dolby Vision? For example, this one says its Dolby Vision and this is what I see in MediaInfo on the biggest stream file. I was maybe expecting to see Dolby Vision on the "HDR format" line.

hdr.png

Are you sure that file has DV? How old is your MediaInfo version? What version of MakeMKV did you use to create the MKV?

It should look more like this:

Capture.JPG (54.83 KiB) Viewed 8378 times

If you mean m2ts file, for DV, there should be a secondary 1080p track within the main m2ts file. This is the DV layer.

[ArArdin]

If you mean images as in ISO's or UHD-BD folder structure, the m2ts and the playlists that refer to it will show 2 videostreams in MediaInfo.
Where the big 3840x2160 is the baselayer.
And the second video is 1920x1080 enhancement layer, being MEL or FEL.

Also when importing a UHDBD or mkv containing Dolby Vision, MakeMKV will tell you.

[plutoscarab]

Oh, I see! Yes, there's a 1080p stream of video in the same m2ts. Thank you both.

[plutoscarab]

MartyMcNuts, what is your image from? I'm not seeing Dolby Vision in MediaInfo which is windows version 21.09. This is a backup folder structure created from MakeMKV 1.16.5 and I was looking at a single m2ts file.

[MartyMcNuts]

MartyMcNuts, what is your image from? I'm not seeing Dolby Vision in MediaInfo which is windows version 21.09. This is a backup folder structure created from MakeMKV 1.16.5 and I was looking at a single m2ts file.

It is from the DV MKV file created using MakeMKV.

[lordvader]

I thought I'll ask the question here, rather than create a new thread.
I've ripped some UHDs (backup, not to mkv), and I notice that media info doesn't mention Dolby Vision in the m2ts file:

Code: Select all

General
ID                                       : 0 (0x0)
Complete name                            : C:\Video\backup\Ready Player One (2018)\BDMV\STREAM\00014.m2ts
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 79.5 GiB
Duration                                 : 2 h 19 min
Overall bit rate mode                    : Variable
Overall bit rate                         : 81.3 Mb/s
Maximum Overall bit rate                 : 109 Mb/s

Video #1
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : 36
Duration                                 : 2 h 19 min
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 725 cd/m2
Maximum Frame-Average Light Level        : 162 cd/m2

Video #2
ID                                       : 4117 (0x1015)
Menu ID                                  : 1 (0x1)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : 36
Duration                                 : 2 h 19 min
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2

However, if I take that backup, and use makemkv to create an mkv, media info does report Dolby Vision:

Code: Select all

General
Unique ID                                : 308528094891246814808916124328690516446 (0xE81C59838D68304C795BACA3001101DE)
Complete name                            : C:\Video\Ready Player One\Ready Player One_t02.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 77.4 GiB
Duration                                 : 2 h 19 min
Overall bit rate mode                    : Variable
Overall bit rate                         : 79.1 Mb/s
Movie name                               : Ready Player One
Encoded date                             : UTC 2022-02-10 23:30:38
Writing application                      : MakeMKV v1.16.5 win(x64-release)
Writing library                          : libmakemkv v1.16.5 (1.3.10/1.5.2) win(x64-release)

Video
ID                                       : 1
ID in the original source medium         : 4113 (0x1011)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 2 h 19 min
Bit rate                                 : 63.0 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.317
Stream size                              : 61.6 GiB (80%)
Language                                 : English
Default                                  : No
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 725 cd/m2
Maximum Frame-Average Light Level        : 162 cd/m2
Original source medium                   : Blu-ray

Is the minimal metadata on the m2ts file to be expected?

[MartyMcNuts]

I thought I'll ask the question here, rather than create a new thread.
I've ripped some UHDs (backup, not to mkv), and I notice that media info doesn't mention Dolby Vision in the m2ts file:

Code: Select all

General
ID                                       : 0 (0x0)
Complete name                            : C:\Video\backup\Ready Player One (2018)\BDMV\STREAM\00014.m2ts
Format                                   : BDAV
Format/Info                              : Blu-ray Video
File size                                : 79.5 GiB
Duration                                 : 2 h 19 min
Overall bit rate mode                    : Variable
Overall bit rate                         : 81.3 Mb/s
Maximum Overall bit rate                 : 109 Mb/s

Video #1
ID                                       : 4113 (0x1011)
Menu ID                                  : 1 (0x1)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : 36
Duration                                 : 2 h 19 min
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 725 cd/m2
Maximum Frame-Average Light Level        : 162 cd/m2

Video #2
ID                                       : 4117 (0x1015)
Menu ID                                  : 1 (0x1)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : 36
Duration                                 : 2 h 19 min
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2

However, if I take that backup, and use makemkv to create an mkv, media info does report Dolby Vision:

Code: Select all

General
Unique ID                                : 308528094891246814808916124328690516446 (0xE81C59838D68304C795BACA3001101DE)
Complete name                            : C:\Video\Ready Player One\Ready Player One_t02.mkv
Format                                   : Matroska
Format version                           : Version 2
File size                                : 77.4 GiB
Duration                                 : 2 h 19 min
Overall bit rate mode                    : Variable
Overall bit rate                         : 79.1 Mb/s
Movie name                               : Ready Player One
Encoded date                             : UTC 2022-02-10 23:30:38
Writing application                      : MakeMKV v1.16.5 win(x64-release)
Writing library                          : libmakemkv v1.16.5 (1.3.10/1.5.2) win(x64-release)

Video
ID                                       : 1
ID in the original source medium         : 4113 (0x1011)
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 2 h 19 min
Bit rate                                 : 63.0 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 23.976 (24000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.317
Stream size                              : 61.6 GiB (80%)
Language                                 : English
Default                                  : No
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : BT.2020
Mastering display luminance              : min: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 725 cd/m2
Maximum Frame-Average Light Level        : 162 cd/m2
Original source medium                   : Blu-ray

Is the minimal metadata on the m2ts file to be expected?

The second video track (the 1080p one) is the DV metadata track.

[lordvader]

Figured that - but there's no metadata that mentions Dolby Vision - so how can a player know?