Dolby Vision now possible through MP4 Mux.

[RESET_9999]

yes the GTV Chromecast works very well for FEL P7 MKV rip as long as you don't try to resume or FF/RW. This is my experience with PLEX and I don't know about Kodi.

[JCLG8]

If I have an ST-DL file and it plays on the X700 is there a reason to convert it to DT-DL?

[tjreis2]

Hello @RESET_9999

My setup is the same as yours (x800m2 direct to the C2) but I am facing quite a strange scenario with two different DV movies.

Yesterday i was watching the new Wonka movie in the internal player of the C2 because the movie is cropped (3840x1604). Imediately i noticed that the movie was dimmer than normal levels. When i opened the same file in the x800m2, i noticed it was playing with a brighter image, albeit with grey bars.

Today i re-tested with a non cropped file (Aquaman 2) in both the C2 internal player and the x800m2 and now the brightness levels were the same in both players!

I have a shield pro, should i use that to see cropped content instead of the internal player?

[RESET_9999]

I would guess it's because CMV4.0 and this is why I always remove it. The L2 trims in Wonka is a global positive lift which is ignored by cmv4.0 devices.
In Aquaman, the L2 trims are not a positive lift. Try to remove CMV4.0 in wonka and I bet the brightness will match the x800m2.

Slope - Offset value over 2048 = positive lift
Power value under 2048 = positive lift

If I have an ST-DL file and it plays on the X700 is there a reason to convert it to DT-DL?

nop

[tjreis2]

I would guess it's because CMV4.0 and this is why I always remove it. The L2 trims in Wonka is a global positive lift which is ignored by cmv4.0 devices.
In Aquaman, the L2 trims are not a positive lift. Try to remove CMV4.0 in wonka and I bet the brightness will match the x800m2.

Slope - Offset value over 2048 = positive lift
Power value under 2048 = positive lift

Thank you! What is the workflow to convert to ts and remove the CMV4.0?

[RESET_9999]

2-1-5 in the latest version

[tjreis2]

2-1-5 in the latest version

Thank you! If i played the file in the Shield, would it still have the same problem? As it is a CMV4.0 device

[RESET_9999]

Shield is a cmv4.0 device, yes i guess so.

[JCLG8]

I would guess it's because CMV4.0 and this is why I always remove it. The L2 trims in Wonka is a global positive lift which is ignored by cmv4.0 devices.
In Aquaman, the L2 trims are not a positive lift. Try to remove CMV4.0 in wonka and I bet the brightness will match the x800m2.

Slope - Offset value over 2048 = positive lift
Power value under 2048 = positive lift

If I have an ST-DL file and it plays on the X700 is there a reason to convert it to DT-DL?

nop

Alright thanks, btw a few days ago I tried a file you recommended for testing black crush, the bars that flash are basically not visible at all when using dolby vision with local dimming at minimum, and a little visible with local dimming off. With HDR10 its completely visible even with local dimming.

[tjreis2]

Shield is a cmv4.0 device, yes i guess so.

Thank You! I have been following your work and the discussions associated with DV for quite some time in this forum, but everytime i think i undertstand the correct setup, there is some new discussion that throws me out of the loop!

If i understand correctly, all CMV 4.0 movies are better being converted to CMV2.9, despite of player (internal vs x800m2 vs shield) correct? The same applies to cropped vs non cropped movies?

The setup i was using is:

If movie is DV P7 FEL and Lossless - Workflow 4-3 and play on x800m2
If movie is DV P8 (non cropped) and lossy - tsmuxer and play on x800m2
If movie is DV P8 (cropped) and lossy - tsmuxer and play on C2 internal player.

Should I add a verification step (Workflow 2-3) to see if the movie is CMV4.0 and convert to CMV2.9? Or should i do this all the time? Furthermore, do I need to do something else in case of DV P8 (cropped) movies, to be played in the internal player, like editing L5?

Thank you so much once again, and sorry for all the questions, just trying to be sure what are the correct steps and players to use!

[RESET_9999]

You can set the script(line 99) to always remove cmv4.0 regardless of the workflow you use.

PS: I just asked Dolby and sent them a bunch of test files about CMV4.0 missing level 8 and L2 trim offset ignored in tv-led.
Let see what they say.

do I need to do something else in case of DV P8 (cropped) movies, to be played in the internal player, like editing L5?

cropped content from apple are missing L5 but it doesn't seem to cause any issue so you can leave it untouched or edit to 0

[tjreis2]

PS: I just asked Dolby and sent them a bunch of test files about CMV4.0 missing level 8 and L2 trim offset ignored in tv-led.
Let see what they say.

Thank You! Its super weird that something like this escapes in testing. Is there actually any way to correctly play CMV4.0 files? The internal player is CMV4.0 and the image was much darker, i doubt that was the intended mastering they wanted..

Regarding the setup im using, do you think i need to change anything?

[susanstone2022]

PS: I just asked Dolby and sent them a bunch of test files about CMV4.0 missing level 8 and L2 trim offset ignored in tv-led.
Let see what they say.

Thank You! Its super weird that something like this escapes in testing. Is there actually any way to correctly play CMV4.0 files? The internal player is CMV4.0 and the image was much darker, i doubt that was the intended mastering they wanted..

Regarding the setup im using, do you think i need to change anything?

Not only should we ask Dolby, but also ask LG, Sony, etc. Current behaviors of playback devices and display devices does not make sense to me.

[RESET_9999]

Regarding the setup im using, do you think i need to change anything?

No , it sounds right but you should try DV MKV with kodi on your C2, it works great on my end (PGS and SRT).
https://kodi.wiki/view/HOW-TO:Install_Kodi_for_webOS

[RESET_9999]

Not only should we ask Dolby, but also ask LG, Sony, etc. Current behaviors of playback devices and display devices does not make sense to me.

Well, unless you are new to this DV thing, we found out quite early that DV is a total mess filled with bugs.