www.makemkv.com

DaMacFunkin wrote: Wed Dec 23, 2020 6:58 am I’m off to get some popcorn for round 2, this is freakin’ awesome

daddy wrote: Tue Dec 22, 2020 6:29 pm

Pacer wrote: Mon Dec 21, 2020 5:28 pm Hello everyone,

first I wanted to say a big THANK YOU to everyone so dedicated to get the DV playback riddle solved, first of all to yusesope, whose tool I've tried to use.

I've just had one UDH Bluray Disc (MI: Fallout), which I tried to get to run in DV after ripping it. With the help of yusesope's tool I was able to create an mp4 file which my LG OLED65GX9LA liked to play. I used the software and procedure described on p199 in this forum:

- ffmpeg to demux from BD m2ts file
- MUX_AND_CONVERT_TO_PROFILE_81.bat
- mp4muxer to get an .mp4 file

The file triggered DV on my LG TV, but I am not sure if it displayed the content correctly. That's why I would like to ask you more experienced people to take a look at my photo comparison (DSLR in manual mode). From left to right you see:

- MKV ripped with 1.15.3 from BD disc, played on my HiMedia Q10 Pro (which plays the file only in HDR10)
- same file, but played from my LG OLED65GX9LA with internal player via DLNA (which also plays it in HDR10)
- mp4-File created with the above procedure, played from my LG's internal player with active DV

Bildschirmfoto 2020-12-12 um 19.55.51.jpg

To me, the colors look quite different compared to the HDR10 variants of the movie. I do not have a hardware BD-UHD player to see how the movie would look like when played from there :-/

What are your thoughts on this?
In my expectation the colors should not differ between HDR10 and DV, right?

The EL is a 10-bit video bitstream that carries the residual between the source and the BL and the “dynamic” metadata for DV. An enhancement layer that carries a residual signal is = 0 (zero), that is, the decoder does not need to process the residual signal, is called minimum enhancement layer (MEL). If the residual signal is > 0, it is called full enhancement layer (FEL)

MI Fallout is a FEL Dolby Vision movie. (BL + EL (>0) + RPU)
Making DV files in single layer profile works only with MEL (EL=0).
The only correct method to have dual layers files (or dual tracks of single layer) is with mp4muxer with Dolby Vision in profile 7.

MastaG wrote: Wed Dec 23, 2020 9:12 am So which players are capable of playing FEL remuxes from network sources (Plex/Emby/SMB), e.g. the full deal retaining the 12bit 4000nits final picture like when playing the original disc?
e.g. remuxed into a TS or MKV container so I can add a high def audio track?

MastaG wrote: Wed Dec 23, 2020 9:12 am So which players are capable of playing FEL remuxes from network sources (Plex/Emby/SMB), e.g. the full deal retaining the 12bit 4000nits final picture like when playing the original disc?
e.g. remuxed into a TS or MKV container so I can add a high def audio track?

If instead I choose to play my files with the profiles dvhe.05 and dvhe.08 ..., the hardware decoder will try to process the Base Layer (BL) and to improve it through RPU metadata by discarding the EL layer.
however, the Base Layer is non-standard (it has a different color space than the IPTPQc2/IPT one) as extracted from a Bluray disk.
It should appear better than an HDR stream (since metadata is dynamic and non-static) but will not reach its maximum splendor due to the lack of data contained in the EL layer.
The lack of this information, however, could lead, in some cases, to evident chromatic aberrations.

When encoded using the dual-layer scheme, the Dolby Vision stream consists of a base layer, an enhancement layer, and a reference processing unit:
...
• The enhancement layer carries the color and brightness differences between the graded source (that is, a source that is graded to Dolby Vision standards) and base-layer version of the source.
• The reference processing unit is a special Network Abstraction Layer (NAL) unit that contains the Dolby Vision metadata. It is also a complete Dolby Vision metadata access unit for the current picture.
...

RESET_9999 wrote: Mon Dec 21, 2020 3:05 pm

Will2106 wrote: Mon Dec 21, 2020 1:01 pm Question regarding the Sony X700 and profile 7 playback from file.

1) The best option is dual track single layer 7.06 (green screen when stop) or new single track dual layer 7.06 bl+el+rpu (no green screen when stop)? or are the same...

2) How to mux a mkv dual layer 7.06 in m2ts working file on X700? i have demos working ok but when i mux with tsmuxer (differents versions) always fail...

Thanks, sorry for my english.

1- I prefer dual track dual layer p7 because every movie works and creating the TS/m2ts files is much faster than any other method. But yeah, there's the green screen bug when you stop playback.
2- you create the single track dual layer with Makemkv or yusesope tool, and then you remux to TS or M2TS with the latest tsmuxer.

glc650 wrote: Mon Dec 21, 2020 1:04 pm And is that from LAN (DLNA?) or just USB drives?

this player got only a 100mbps ethernet port so it's not fast enough for high bitrate movies.

rocsen wrote: Thu Dec 24, 2020 1:44 pm
I find if I copy the original m2ts from the BD rip, it plays perfectly fine on the X700 without the green screen bug.

galarond wrote: Thu Dec 24, 2020 6:39 am Ok, so i give up after all my attempts, like 20 programs, cmd lines, etc.
Ive read at least 100 pages of this topic, but any kind soul can explain me in detail how i create a dual layer dolby vision mp4 with ac3 audio from the bluray backup but that works with the Lg b6?
Ive read too that the 2016 series of lg oleds cant read dual layer dolby vision but thats not true, i have a hobbit mp4 file downloaded from torrent that displays as dolby vision in my lg b6, when i use mp4box to demuxe the mp4 i see 3 files .hev1 .dvhe and ac3. files inside the mp4, so what i need to do to get this thing?Of course i tried the tsmux, mp4muxer with profile 7 comand line and that mp4 is only playable on my pc.
Thank you in advance

pete19 wrote: Wed Dec 23, 2020 6:03 am

quietvoid wrote: Tue Dec 22, 2020 10:49 pm 420 is not wrong, the patent specs also only mention 12 bit YCbCr 420 reconstructed output.
As for the HDMI transmission, it is detailed as 12 bit YCbCr 422 because the metadata is also transported into the least significant bits.

first off, nobody said 420 is "wrong" - that is your wording. 420 simply has less color resolution, hence 422 is more desirable.

Second, both STD and LLDV output a 12bit 422 signal yet only STD contains in addition the dynamic metadata because it's tv-led. so the player-led stream (already DV decoded) which also contains 12bit 422 signal requires less bandwidth, hence it provides low latency...

again, BOTH DV stream types contain 12bit 422 signal (because that's the Dolby spec), yet LLDV has less data than the other... only STD carries metadata in the stream, not LLDV.... hence your 2nd statement is also wrong.

to recap:
all DV streams are 12 bit 422.
only tv-led contains the full dynamic metadata, so full stream requirements, hence RGB tunneling in 8bit float container is used.
player-led requires less bandwidth because it contains less data (still 12 bit 422 signal).
MEL is also 12 bit 422 but only contains a 10bit 420 signal, padded.

and to stress this part:

quietvoid wrote: Tue Dec 22, 2020 10:49 pm because the metadata is also transported into the least significant bits.

you make it sound like that "explains" a 12bit 420 final output. no, the metadata allows to reconstruct the full 12bit 422 master, which is why it is a 12bit 422 signal.

if final output was 12bit 420 (so EL only contains luminance, Y difference) for FEL STD, they wouldn't need a 12 bit 422 stream, they'd use a 12bit 420 stream. Metadata is the mere difference, it doesn't need "extra" space on top of the difference, especially since it's encoded as well.

aboulfad wrote: Thu Dec 24, 2020 11:29 am Hi,
Can someone elaborate on yusesope´s comment copied below. Would (and how) DV streaming providers (NF, Apple) have to deal with the lack of EL in a DV profile 5 and potential « issues » such as chromatic aberrations. Or are those issues a side effect of yusesope method for creating a single track single layer DV media ?

One point that seems not so obvious, is that a Profile 5 can make use of dynamic metadata carried in the RPU- Reference Processing Unit, what is this? Thank you.

If instead I choose to play my files with the profiles dvhe.05 and dvhe.08 ..., the hardware decoder will try to process the Base Layer (BL) and to improve it through RPU metadata by discarding the EL layer.
however, the Base Layer is non-standard (it has a different color space than the IPTPQc2/IPT one) as extracted from a Bluray disk.
It should appear better than an HDR stream (since metadata is dynamic and non-static) but will not reach its maximum splendor due to the lack of data contained in the EL layer.
The lack of this information, however, could lead, in some cases, to evident chromatic aberrations.

shawnc22 wrote: Thu Dec 24, 2020 5:03 pm When you’re doing conversions from a UHD disc to single layer, you’re going to lose data (neglible in MEL). ... The issue complicates when you further force the single-layer product to profile 5. Original profile 5 videos are encoded in a different colorspace than UHD discs, and the current available conversion process is not doing any colorspace conversions. When a player encounters a converted profile 5 video, it will play it in the p5 (IPTPQc2) colorspace, but the file is still encoded in the original UHD profile 7 colorspace— leading to potential chromatic abberations. Streaming services don’t have this issue simply because their content is encoded in profile 5 to begin with. The BL in these content is completely different than the one found on UHD discs. For more reading on BLs, ELs, RPUs, and anything DV/HDR related, I would start here: https://forum.blu-ray.com/showpost.php? ... ostcount=4.

RESET_9999 wrote: Thu Dec 24, 2020 2:42 pm

rocsen wrote: Thu Dec 24, 2020 1:44 pm
I find if I copy the original m2ts from the BD rip, it plays perfectly fine on the X700 without the green screen bug.

Yep, but that is fake DV. Press ''display'' on your remote and you will see that it say ''HDR'' only instead of ''Dolby Vision HDR'' .
To get real DV on the x700, you have to remux the original m2ts with tsMuxer or the mp4muxer.