Dune HD Real Vision 4K

[Skynet92 5]

2 hours ago, rodainas said:

Yes, all the fire devices are 32bit at present time.

it's strange to put a 32 bits OS since the time.

There was a big controversy between the tube and pro shield with less performance.

[Luke 37116]

Have your questions been answered?

[Skynet92 5]

1 hour ago, Luke said:

Have your questions been answered?

Yes, thank you very much. 

[generiq 113]

There is another aspect to consider...the muxing/demuxing. Dolby Vision in mkv is still very new, and many demuxers won't fully support the variants, if at all. Here's an example.

I have this file from the Dolby developer site:

Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (mp42/isom/iso5)
File size                                : 329 MiB
Duration                                 : 2 min 58 s
Overall bit rate                         : 15.5 Mb/s
Encoded date                             : UTC 2020-10-06 22:55:02
Tagged date                              : UTC 2020-10-06 22:55:02

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@Main
HDR format                               : Dolby Vision, Version 1.0, dvhe.08.05, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 2 min 55 s
Bit rate                                 : 15.1 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.121
Stream size                              : 315 MiB (96%)
Default                                  : Yes
Alternate group                          : 1
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
Codec configuration box                  : hvcC+dvvC

It's mp4 and plays without issue.

 

I have this file, which is a new show that is currently airing:

Format                                   : Matroska
Format version                           : Version 4
File size                                : 1.50 GiB
Duration                                 : 33 min 20 s
Overall bit rate                         : 6 458 kb/s
Encoded date                             : UTC 2021-09-12 18:02:42
Writing application                      : mkvmerge v61.0.0 ('So') 64-bit
Writing library                          : libebml v1.4.2 + libmatroska v1.6.4

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@Main
HDR format                               : Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU, HDR10 compatible / SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 33 min 20 s
Bit rate                                 : 6 200 kb/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)                       : 0.031
Stream size                              : 1.44 GiB (96%)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : PQ
Matrix coefficients                      : BT.2020 non-constant
Mastering display color primaries        : Display P3
Mastering display luminance              : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level              : 580 cd/m2
Maximum Frame-Average Light Level        : 136 cd/m2

It only plays the audio, with a black screen.

The only major difference is the container, mp4 vs mkv. You can also see that the codec IDs are different. The mp4 reads as hev1, but the mkv is V_MPEGH/ISO/HEVC. 

I'm playing these on a Windows 10 machine with the official Dolby Labs extension, and with the Movies & TV app (yes it plays DV correctly). If I play them in mpv (mpv doesn't support DV), it plays the HDR10(+) correctly, (also correctly in VLC).

So the suggestion is that maybe the demuxer needs to catch up. This may be why it works in the native player of the Dune, but not in other players. They may have a more up to date demuxer (which I would expect them to have). Windows/Dolby extension also needs to be updated.