Dolby Vision now possible through MP4 Mux.

[lionhunter]

I’m using the Chromecast Google TV, since it’s the only other thing that plays FEL. It’s not the most reliable either, though. And no lossless audio.
Are you able to run Plex on the x700? How do you get mkv files onto the thing to play them?

You're saying Chromecast Google TV plays FEL? Under what conditions? Using Plex? A specific version of Kodi? Dual track P7 Dolby Vision?

I can attest personally the Chromecast w/ Google TV and Tivo Stream 4k (they share the same video decoder) play DV FEL in SL DT format in mp4 container via Plex (mkv might work I just do mp4 for my own library/rips)

I posted video of the Tivo playing FEL somewhere back in this thread

Others here have the Chromecast and can back that up

Can you show me the metada of such a MP4 please? What video tracks it has, etc. I'm trying to determine whether CCwGT or Amazon FireCube 2nd gen is better for DV playback. ATM, they seem equally capable from my testing.

[RESET_9999]

Hello, I’m trying to makes things work for movies with Dolby Vision FEL and TrueHD Atmos/DTS:X.

1- Yes
2- I never tried with the HDMI out 2 but it should work, I don't see why it wouldn't. X700 supports DTS-X and TrueHD Atmos passthrough.
3- Yes, but the ethernet is only 100mbps. Lossless audio should be supported as well via your network. I use a USB, so maybe other users can confirm.

Why does DV mp4 from netflix play as HDR on non-DV screen while DV mp4 from disney plus will show a green sdr on non-DV screen? Is there a way to convert the disney DV?

Because most of the Netflix web-dl were converted from profile 5 to profile 8 (with an HDR10 BL).
Some release groups prefer that instead of releasing a DV p5 and an HDR10 version.

There apparently was a big 158MB Google Chromecast update released today that includes Dolby Vision playback performance as a line item in the change log - anybody that can test if it improves performance or maybe allows lossless audio?

Thanks!

I wonder if they fixed the problem that LLDV is the default mode.

You're saying Chromecast Google TV plays FEL? Under what conditions? Using Plex? A specific version of Kodi? Dual track P7 Dolby Vision?

PLEX, MKV ST-DL.

[tr000]

I have a LG C1 and want to watch a Bluray ISO via USB/HDD. If i mount the ISO the format says: M2TS

What are the steps to watch this bluray on my TV with Dolby Vision?

Let me tell you what I have found.

I obtained raw Dolby Vision demo files from "Dolby.UHD.BluRay.Demo.Disc.March.2018". On my old TCL Dolby Vision TV, anything encoded in Profile 4 or 5 would generally work. As such, I encoded everything in the disc in this format and deleted the source BDMV folder. Here is what those files looked like:

Code: Select all

Video #1
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : SMPTE ST 2086, HDR10 compatible
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 1 min 14 s
Bit rate                                 : 58.3 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 60.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.117
Stream size                              : 518 MiB (97%)
Default                                  : Yes
Alternate group                          : 1
Encoded date                             : UTC 2021-02-07 11:04:44
Tagged date                              : UTC 2021-02-07 11:04:44
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: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 7386 cd/m2
Maximum Frame-Average Light Level        : 493 cd/m2
Codec configuration box                  : hvcC

Video #2
ID                                       : 2
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : Dolby Vision, Version 1.0, dvhe.04.09, EL+RPU, SDR compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 1 min 14 s
Bit rate                                 : 284 kb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 60.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.002
Stream size                              : 2.52 MiB (0%)
Default                                  : No
Alternate group                          : 1
Encoded date                             : UTC 2021-02-07 11:04:44
Tagged date                              : UTC 2021-02-07 11:04:44
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: 0.0050 cd/m2, max: 4000 cd/m2
Codec configuration box                  : hvcC+dvcC

Audio
ID                                       : 3
Format                                   : E-AC-3 JOC
Format/Info                              : Enhanced AC-3 with Joint Object Coding
Commercial name                          : Dolby Digital Plus with Dolby Atmos
Format profile                           : Blu-ray Disc
Format settings                          : Dolby Surround EX
Codec ID                                 : ac-3
Duration                                 : 1 min 14 s
Bit rate mode                            : Constant
Bit rate                                 : 1 664 kb/s
Channel(s)                               : 8 channels
Channel layout                           : L R C LFE Ls Rs Lb Rb
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 14.8 MiB (3%)
Service kind                             : Complete Main
Default                                  : Yes
Alternate group                          : 2
Encoded date                             : UTC 2021-02-07 11:04:44
Tagged date                              : UTC 2021-02-07 11:04:44
Complexity index                         : Not present / 16
Number of dynamic objects                : 15
Bed channel count                        : 1 channel
Bed channel configuration                : LFE

So these played fine, triggering the DV logo, in the Roku Media Player via USB on my TCL DV TV. I elected to encode them in Profile 4 because it had HDR fallback support, and could be played fine on non-DV devices.

Now, we come to the C1. I try these files via USB, and they are completely green on the native WebOS player. So, I use MP4Demux https://github.com/DolbyLaboratories/dlb_mp4demux to get the HDR10 BL and DV EL. I then try all available profiles on MP4Muxer https://github.com/DolbyLaboratories/dlb_mp4base, encoding the demuxed files in Profile 4, 5, 7, and 8. I also used the latest built of TSMuxer and MKVToolNix with the demuxed files, which created a .ts/.m2ts and .mkv, respectively.

Some of the profiles trigger HDR10, others are just black screens. No luck.

Then, I try Yusesope's tool https://mega.nz/file/mdU00TZR#bCiuGx6-7 ... rjLOOKESeE. I use the muxing functionality to mux the BL and EL .hevc files into one file, and then feed that into the MP4Muxer along with the .ac3 audio, of course. Then, I try the same thing again. Encoded in Profile 4, 5, 7, and 8. I used TSMuxer and MKVToolNix again as well for good measure to see if the single-layer HEVC file would work in .ts/.m2ts or .mkv.

Only the .mp4 in Profile 5 and 8 successfully triggered Dolby Vision on the C1 WebOS player via USB. I elected to go with Profile 8 for the backwards compatibility with HDR10.

Here is the information of the working profile 8 file:

Code: Select all

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@High
HDR format                               : Dolby Vision, Version 1.0, dvhe.08.09, BL+EL+RPU, HDR10 compatible / SMPTE ST 2086, HDR10 compatible
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 1 min 14 s
Bit rate                                 : 58.6 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 60.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0 (Type 2)
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.118
Stream size                              : 521 MiB (97%)
Default                                  : Yes
Alternate group                          : 1
Encoded date                             : UTC 2021-12-08 14:15:38
Tagged date                              : UTC 2021-12-08 14:15:38
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: 0.0050 cd/m2, max: 4000 cd/m2
Maximum Content Light Level              : 7386 cd/m2
Maximum Frame-Average Light Level        : 493 cd/m2
Codec configuration box                  : hvcC+dvvC+hvcE

Audio
ID                                       : 2
Format                                   : E-AC-3 JOC
Format/Info                              : Enhanced AC-3 with Joint Object Coding
Commercial name                          : Dolby Digital Plus with Dolby Atmos
Format profile                           : Blu-ray Disc
Format settings                          : Dolby Surround EX
Codec ID                                 : ac-3
Duration                                 : 1 min 14 s
Bit rate mode                            : Constant
Bit rate                                 : 1 664 kb/s
Channel(s)                               : 8 channels
Channel layout                           : L R C LFE Ls Rs Lb Rb
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Stream size                              : 14.8 MiB (3%)
Service kind                             : Complete Main
Default                                  : Yes
Alternate group                          : 2
Encoded date                             : UTC 2021-12-08 14:15:38
Tagged date                              : UTC 2021-12-08 14:15:38
Complexity index                         : Not present / 16
Number of dynamic objects                : 15
Bed channel count                        : 1 channel
Bed channel configuration                : LFE

From here, I am left wondering how I can get lossless audio working, as the LG C1 supports eARC I can passthrough any format to my receiver. Obviously, MP4Muxer won't accept a .thd file as input, so I am unsure how to go about this. Perhaps someone who has been more consistently active here such as

can guide me to a solution to this. It's always very hard to get a lay of the current land in DV after not browsing this thread for months.

[tr000]

Regarding LG WebOS players and DV inside .TS containers.
They always seem to stutter, was there ever a fix for this?
Then I use the latest nightly of TSmuxer to mux the resulting hevc + ac3 5.1 audio inside a .TS container (no HD audio or whatsover).

Hi, what you want to do if you don't care about lossless audio or all this FEL/MEL nonsense is possible (see above post detailing it). You are on the right track using Yusesope's tool to create a single layer file from the BL and EL. Once you have the combined .HEVC file, you'll want to use the Dolby MP4Muxer and mux it to whatever profile works for you (it's dependent on TV models, because the DV chipset is different) along with your .ac3 file. Basically, grab the mp4muxer.exe from GitHub, open a PowerShell in the directory it's in and do

Code: Select all

mp4muxer -i BL.hevc -i EL.hevc -i audio.ac3 --dv-profile 8 --dv-bl-compatible-id 1

changing the filenames and profiles to yours, of course. You only need the last argument if you're working with profile 8. This will result in a perfectly working MP4 file that the WebOS player will handle fine.

[RESET_9999]

can guide me to a solution to this. It's always very hard to get a lay of the current land in DV after not browsing this thread for months.

True profile 8 ( BL + RPU ) in a TS container works just fine on LG OLED TVs as long as the first audio is lossy. I don't know what happens when eARC and passthrough are enabled though.
So since your TV doesn't support the EL, just remove it by making a true p8 instead of a profile 7 file in a p8 container like the mediainfo in your post.

Code: Select all

dovi_tool.exe -m 2 extract-rpu EL.hevc

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dovi_tool.exe inject-rpu -i BL.hevc --rpu-in rpu.bin

you can also use yusesope tool ''MUX_AND_CONVERT_TO_PROFILE_81.bat''

I will buy a new C1 or C2(when out) soon and if p8 + lossless audio via earc really works, that would be great. please let me know

[PlatypusW]

Fairly certain you won’t be able to get lossless audio out of the LG Oled TV, doesn’t matter if it’s earc/passthrough - the tv (CX onwards) doesn’t support DTS/DTS-HD/Dolby TrueHD.

If you are trying to get a Blu-ray playing ‘fully’ I.e. profile 7 Dolby vision and lossless audio, you’ll need an external player.

[RESET_9999]

Fairly certain you won’t be able to get lossless audio out of the LG Oled TV, doesn’t matter if it’s earc/passthrough - the tv (CX onwards) doesn’t support DTS/DTS-HD/Dolby TrueHD.

If you are trying to get a Blu-ray playing ‘fully’ I.e. profile 7 Dolby vision and lossless audio, you’ll need an external player.

Then what's the point of having eARC, just marketing BS ? or just for LPCM ?
Thought the decoding was done by the AVR with passthrough enabled.


https://www.reddit.com/r/OLED/comments/ ... _lg_c9_to/

[MaxBane]

Then what's the point of having eARC, just marketing BS ? or just for LPCM ?
Thought the decoding was done by the AVR with passthrough enabled.

eARC on the LG CX/C1 can still pass-through Dolby Atmos/Surround, but yea, many blurays use DTS where it will have to be pass-through as LPCM where eARC supports uncompressed 5.1/7.1. I was also ticked when I found that eARC on the C1 can't pass-through DTS:X which some UHD blurays use instead of Atmos such as Gladiator or The Fast and The Furious where I will have to connect my PC directly to the receiver for those movies as 120 Hz isn't needed for that, but it sure is a hassle.

[shawnc22]

Fairly certain you won’t be able to get lossless audio out of the LG Oled TV, doesn’t matter if it’s earc/passthrough - the tv (CX onwards) doesn’t support DTS/DTS-HD/Dolby TrueHD.

If you are trying to get a Blu-ray playing ‘fully’ I.e. profile 7 Dolby vision and lossless audio, you’ll need an external player.

Then what's the point of having eARC, just marketing BS ? or just for LPCM ?
Thought the decoding was done by the AVR with passthrough enabled.


https://www.reddit.com/r/OLED/comments/ ... _lg_c9_to/

You don't need an HDMI 2.1 AVR to be able to use eARC. I have a Denon 3600H that can do eARC just fine without HDMI 2.1. There are limitations with DTS passthrough on the CX and onwards models (not sure about TrueHD), but the C9/B9 can surely passthrough lossless audio via eARC. I have an Xbox series X hooked up directly to my B9 and eARC has no issues passing through lossless audio from UHD discs.

[tr000]

True profile 8 ( BL + RPU ) in a TS container works just fine on LG OLED TVs as long as the first audio is lossy. I don't know what happens when eARC and passthrough are enabled though.

Ok, I'll try this out later and let you know. I'll put the muxed profile 8 .HEVC in a .TS file in TSMuxer and we'll see what happens.

Fairly certain you won’t be able to get lossless audio out of the LG Oled TV

Then what's the point of having eARC, just marketing BS ?

I was also ticked when I found that eARC on the C1 can't pass-through DTS:X which some UHD blurays use instead of Atmos such as Gladiator or The Fast and The Furious where I will have to connect my PC directly to the receiver for those movies as 120 Hz isn't needed for that, but it sure is a hassle.

There are limitations with DTS passthrough on the CX and onwards models (not sure about TrueHD), but the C9/B9 can surely passthrough lossless audio via eARC. I have an Xbox series X hooked up directly to my B9 and eARC has no issues passing through lossless audio from UHD discs.

You know what, I think I'm getting that "sinking feeling" with my recent purchase of the C1 after making these realizations. It seems to be a downgrade from my old TCL TV in this regard…the picture quality is amazing, but seriously, the way it handles formats is atrocious. The TCL could at least send 1536 kbps DTS 5.1 through ARC even though it didn't support eARC. Now I'm stuck with 448/640 kbps AC3 on the C1 or 768kbps if it's E-AC3 Atmos, both of which are easily delivered over ARC. WTF is the point of eARC, then?

When I loaded a Dolby TrueHD movie on the usb, with audio information:

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Audio #1
ID : 2
ID in the original source medium : 4352 (0x1100)
Format : MLP FBA 16-ch
Format/Info : Meridian Lossless Packing FBA with 16-channel presentation
Commercial name : Dolby TrueHD with Dolby Atmos
Codec ID : A_TRUEHD
Duration : 2 h 32 min
Bit rate mode : Variable
Bit rate : 4 446 kb/s
Maximum bit rate : 8 448 kb/s
Channel(s) : 8 channels
Channel layout : L R C LFE Ls Rs Lb Rb
Sampling rate : 48.0 kHz
Frame rate : 1 200.000 FPS (40 SPF)
Bit depth : 24 bits
Compression mode : Lossless
Stream size : 4.74 GiB (8%)
Title : TrueHD 7.1 Atmos
Language : English
Default : Yes
Forced : No
Original source medium : Blu-ray
Number of dynamic objects : 13
Bed channel count : 1 channel
Bed channel configuration : LFE

with eARC and passthrough enabled it just sends the core 640kbps (or worse, 448) AC3 and my reciever says "DD", no TrueHD or anything. Very disappointing. I guess there is no reason to even try to get lossless audio working unless I get a shield. It's basically limited to what my last TCL TV was, Dolby Vision with AC3. Except I've lost the ability to do HDR10 DTS content now.

[MaxBane]

with eARC and passthrough enabled it just sends the core 640kbps (or worse, 448) AC3 and my reciever says "DD", no TrueHD or anything. Very disappointing. I guess there is no reason to even try to get lossless audio working unless I get a shield. It's basically limited to what my last TCL TV was, Dolby Vision with AC3. Except I've lost the ability to do HDR10 DTS content now.

How are you seeing bit-rate information on the C1? When I play atmos, the receiver (Denon AVR-S750H) says atmos when playing a movie from my PC via eARC and HDMI diagnostics on C1 says 8ch 192 kHz, but not sure about the bit-rate the receiver is actually receiving.

[DaMacFunkin]

The problem is he is playing the file by usb, the internal media player is not passing the TrueHD or MA to the eARC.
Could be a physical limitation but most likely a software limitation due to licensing, in this scenario the USB is the transport.
A source via HDMI will have the correct licensing so this will be allowed to ‘eARC’ out to the receiver.

[Mattl0]

Why is the start time of tsmuxer always set to 4 seconds?

When writing hdr10 or dv (wich won’t work) with ffmpeg to a ts container it maitains the original start time of the m2ts file.

Even when converting a ts made from tsmuxer to another ts with ffmpeg , the original start time is set back.

[PlatypusW]

You know what, I think I'm getting that "sinking feeling" with my recent purchase of the C1 after making these realizations. It seems to be a downgrade from my old TCL TV in this regard…the picture quality is amazing, but seriously, the way it handles formats is atrocious.

If you were expecting the tv to be a player then unfortunately yeah. But for me the CX is absolutely amazing, have no regrets. Would buy another instantly if I had to.

A source via HDMI will have the correct licensing so this will be allowed to ‘eARC’ out to the receiver.

This - an external player will be needed to get lossless audio though I’ve never tested lossless with earc, I assume it works though

[eedwards86]

Hello Everyone,

I’ve been reading through this thread and hoping to get a few answers if possible. Before I ask, let me reference the following equipment and files being used.

TV (DV): Sony A80J
TV (non DV/HDR10/HDR10+): Samsung Q6FN / Samsung TU8000
Plex: Version 1.25.0.5282
Storage: Synology DS1618+ (~32TB)
Streaming Players: Nvidia Shield Pro 2019, Amazon Firestick 4K, Amazon Firestick 4K Max
No AVR/Soundbar
Assets: All UHD/HDR created through MakeMKV, every DV file is dvhe.07.06 (FEL or MEL)

Question #1: For any UHD Dolby Vision discs ripped to MKV using version 1.15.3 or earlier, can those MKV's be re-run through a newer version of MakeMKV to retain DV information? Or do you have to go back to the disc?

Question #2: Any MKV file played on the shield using Plex would only display as HDR10 rather than Dolby Vision on my Sony A80J. All MKV’s were made on v1.15.2 to v1.16.5. I confirmed that other DV sources work (such as Disney+). It seems others have had luck with playback of varying DV profiles using Shield Pro including profile 7. I had no luck with any profile 7 files, I was curious if this is typical or an issue only on my end?

Question #3: DV will playback successfully on my Sony using Firestick 4K and 4K Max through Plex with the exception of any MKV with HDR10+. Those files display a black screen with audio only. I only had issues with one non-HDR10+ title that would display black video and audio only (2001: A Space Odyssey). All other DV mkv files playback successfully using Profile 7 regardless if FEL or MEL. Anyone else notice this issue with HDR10+ files?

Question #4: Possible bug found with Firestick 4K vs. the 4K Max. Playback of DV/HDR10+ mkv files work fine on both Samsung TV’s; both show movies playing in HDR10+. However, when attempting to play the same files through the 4K Max only black screen and audio play. This clearly looks like an issue with the 4K Max vs regular 4K; does anyone have any more information on this?

Based on the above does it make sense to transcode any of these assets to mp4 and/or attempt to change their DV profiles? I’m assuming you lose lossless audio when transcoding to mp4?