Dolby Vision now possible through MP4 Mux.

[MastaG]

some of the performance problems with FEL remuxes.

What kind of performance problems ? Ob my LG C7 ( not 2018 but close ) I didn't saw any.

Movies such as 1917 or Gemini Man (which is a high frame rate movie) will only play if you remux them with metadata only (mode 2 using yusesope's tool).
If you remux it as dual pid (using mp4muxer) or mode 1 with yusesope's tool (e.g. keeping the full enhancement layer). It will stutter.

[RESET_9999]

Here's proof that the red artifacts on the Doctor Sleep UHD-BD rip is a different issue and have nothing to do with the BT2020 flag. But that doesn't mean the bt2020 flag does nothing to the image.

Shield Default bt2020 RGB Movies Anywhere (fullrange profile 5) VS Shield Default bt2020 UHD-BD RIP
https://screenshotcomparison.com/comparison/5222

So there are actually 2 issues:

1- one that causes a red push on all the UHD-BD rip. The problem is not the file because the SL-DL is identical to the profile 7 DL on my x700 as shown here: https://screenshotcomparison.com/comparison/4913

2- a 2nd red push caused by the bt2020 flag that affects all the streaming app and plex
Shield Default bt2020 UHD-BD RIP VS Shield RGB vertex UHD-BD RIP
https://screenshotcomparison.com/comparison/5224

Shield Default bt2020 RGB Movies Anywhere VS Shield RGB vertex Movies Anywhere
https://screenshotcomparison.com/comparison/5225

Shield Default bt2020 RGB NETFLIX VS Shield RGB vertex NETFLIX:
https://screenshotcomparison.com/comparison/5188


you can clearly see that removing the bt2020 flag fix the red push on profile 5 full range files. In fact, it's slightly affecting all the colors. blue green red yellow

[shawnc22]

Here's proof that the red artifacts on the Doctor Sleep UHD-BD rip is a different issue and have nothing to do with the BT2020 flag. But that doesn't mean the bt2020 flag does nothing to the image.

Shield Default bt2020 RGB Movies Anywhere (fullrange profile 5) VS Shield Default bt2020 UHD-BD RIP
https://screenshotcomparison.com/comparison/5222

So there are actually 2 issues:

1- one that causes a red push on all the UHD-BD rip. The problem is not the file because the SL-DL is identical to the profile 7 DL on my x700 as shown here: https://screenshotcomparison.com/comparison/4913

2- a 2nd red push caused by the bt2020 flag that affects all the streaming app and plex
Shield Default bt2020 UHD-BD RIP VS Shield RGB vertex UHD-BD RIP
https://screenshotcomparison.com/comparison/5224

Shield Default bt2020 RGB Movies Anywhere VS Shield RGB vertex Movies Anywhere
https://screenshotcomparison.com/comparison/5225

Shield Default bt2020 RGB NETFLIX VS Shield RGB vertex NETFLIX:
https://screenshotcomparison.com/comparison/5188


you can clearly see that removing the bt2020 flag fix the red push on profile 5 full range files. In fact, it's slightly affecting all the colors. blue green red yellow

The tag is going away in the next firmware release so I'm glad we're at least solving one issue. Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

[RESET_9999]

The tag is going away in the next firmware release so I'm glad we're at least solving one issue.

Really can't wait for that !!!

Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

Damn, this is on my todo list but I completely forgot. I'll try that tomorrow night. thank's for reminding me.

[SamuriHL]

Well....it's an improvement. We'll see what they turn up. Especially with their discussion with Dolby. But at least the BT.2020 flag being removed should help. I still don't understand how that works with my UB820 because it's sending the BT.2020 flag and it's definitely doing the correct colors.

[McZuzlak]

Out of curiousity did anyone try reencoding the BL ( same res just lower bitrate x265 ) and then mux it with the original EL into mp4? I wonder if that would be still playble on my LG C7 internal player.

[BringerChaos]

I don't suppose anyone happens to know which profile(s) work on Sony Bravia KD-65X9500G via plex OR Firestick 4K plex?
Also if its capable of playing both BL+EL+RPU or BL+RPU?
TV doesn't have a dolby vision icon haha.

[mike admin]

Out of curiousity did anyone try reencoding the BL ( same res just lower bitrate x265 ) and then mux it with the original EL into mp4? I wonder if that would be still playble on my LG C7 internal player.

Non-MEL EL contains residue - i.e. result=some_RPU_magic_function(BL+EL) . By changing BL (and re-encoding is a destructive process) you are bound to get an incorrect result.

[RESET_9999]

Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

Nop, I cannot get a match with that LG profile 4 BL+EL+RPU video or any video that has an EL.
Shield Plex RGB vertex VS LG C8 internal app
https://screenshotcomparison.com/comparison/5268


So I thought maybe the problem was caused by the DV files that are HDR10 and DV compatible(limited range). So I compared the Glass Blowing BL+ RPU demos. One is HDR10 and DV compatible(limited range) and the other video is full range profile 5 DV only.
looks pretty much the same to me.. I still see a slight difference compared to the C8(but not in real life) but nothing major like any BL+EL+RPU.

*notes: the glass blowing samples don't work in my x700 so that's why I used the c8 for the comparisons. Downside: almost impossible to pause at the same frame.

Shield-DV-HDR10-sample


Shield-DV only full-range-sample


LG C8 internal app Full range sample




full range sample:

Code: Select all

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.05.09, BL+RPU
Codec ID                                 : dvh1
Duration                                 : 2 min 55 s
Bit rate                                 : 15.2 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 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
Bit depth                                : 10 bits
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.031
Stream size                              : 317 MiB (96%)
Default                                  : Yes
Alternate group                          : 1
Color range                              : Full
Codec configuration box                  : hvcC+dvcC

DV + HDR10 sample:

Code: Select all

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.08.09, 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                                    : 3 840 pixels
Height                                   : 2 160 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)                       : 0.030
Stream size                              : 316 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

[shawnc22]

Have you had a chance to look at that LG profile 4 BL+EL+RPU video to see if you notice any oddities when compared to another soc?

Nop, I cannot get a match with that LG profile 4 BL+EL+RPU video or any video that has an EL.
Shield Plex RGB vertex VS LG C8 internal app
https://screenshotcomparison.com/comparison/5268

Ah that's disappointing. I went ahead and demuxed that demo file with yusecope's demuxer and it does look like it's FEL (~200MB BL:~50MB EL), so that could explain why it's not playing it correctly.

[RESET_9999]

I wonder if a dvhe.08.09, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible UHD-BD rip would output proper colors. Can we create such a file with the tools we have?

I know the EL is gone but if it is color accurate, that could be a good workaround until Nvidia finds what the problem is.

[shawnc22]

I wonder if a dvhe.08.09, BL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible UHD-BD rip would output proper colors. Can we create such a file with the tools we have?

I know the EL is gone but if it is color accurate, that could be a good workaround until Nvidia finds what the problem is.

Yep with yusecope's tool in mode 2 to strip out the EL and an unaltered nightly version of tsmuxer will give you a profile 8 video. I can try that with the doctor sleep scene actually. I'll post the clip shortly for you to try as well.

[shawnc22]

Here you go:

https://mega.nz/file/0CglFIoC#dqLlY_I_l ... -FlPYrNGI0

From first glance, there doesn't seem to be much of a difference between this and the profile 4 BL+EL+RPU video. But maybe there will be with the vertex workaround?

[RESET_9999]

thank's .. unfortunately, red artifacts still present.

[MastaG]

As I haven't been following much lately..
But I remember that the LG C8 internal player had some performance problems when remuxing some FEL Blu-ray movies.
Examples are 1917 and Gemini Man.
It doesn't really matter whether I used txmuxer or mp4muxer (profile 04 or 06) or even dual pid (profile 07).

The only way to get those movies to play smoothly was by discarding the EL layer by merging the two layers using yusesope's tool in mode 2 (BL+RPU).

Now some people claimed they got these movies to play smooth by merging both layers using yusesope's tool in mode 1 (BL+EL+RPU) and then using an old or modified version of txmuxer which would flag the movie as profile 08.

But that is like telling your TV there's no full EL right? As profile 08 and 05 are basically indicating BL+RPU.
So perhaps the reason for these FEL movies playing smooth when setting profile 08 is because the internal player doesn't process the EL at all?