details about MP4.DolbyVision single-layer

[signals]

What are the chances of ditching mp4 and/or adding a ts.dolbyvision profile? then you can have a copy video AND a copy audio setting to preserve hd-audio+atmos/dts:x

The chances of ditching mp4 are zero. It is one of the most universally playable file formats. It may not currently do this, but that may change over time.

[0tr]

So Wilson.Wang is there any actual quality difference between single layer and dual layer? I mean there must be something that is less in the single layer file if the second layer goes missing...

[Grencola]

What are the chances of ditching mp4 and/or adding a ts.dolbyvision profile? then you can have a copy video AND a copy audio setting to preserve hd-audio+atmos/dts:x

[Wilson.Wang]

hi jlp,

Below is from Dev Guy,
Single stream is BL+RPU,
Two Stream is Main Stream HDR10 video, Second Stream EL+RPU
And Dolby Vision is in RPU, Both will have Dolby Vision.

Single Stream not have EL for now. It is not Dolby Vision, it some info for HDR10 to 12bit .
Mp4 container not have such mode as in Dolby Demo files for now.

yours,
Wilson

[jlp]

when demuxed the MP4 with dolby's mp4demuxer_64bits, i got regular h265 stream called dv_el_out_1.h265

Video
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
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        : Display P3
Mastering display luminance              : min: 0.0001 cd/m2, max: 1000 cd/m2

[jlp]

attaching.. thanks.. as you cann see, single stream is "missing" 4.6GB. Pet Sematary DoVi Single Stream.txt dvdfab_internal.log Pet Sematary DoVi Two Stream.txt

[Mona]

Hi jlp,

Please use mediainfo to analyze the resulted mp4 file and post the result here.

Also, when you set it to copy video in the advanced settings window, there are two options available, please check image attached and try "Copy Video" to see the result.
If still have same problem, please post dvdfab log files and the media info result from the output file. Thanks.

[jlp]

i don't know the complete know-how, just want to be sure... for example.. Pet Sematary.. it has about 5GB Dolby Vision layer. But whe i rip it to MP4.DolbyVision Single Stream, it's big exactly as without that DoVi layer. Is it really preserved? how then?