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Re: Dolby Vision now possible through MP4 Mux.
Posted: Thu Feb 11, 2021 6:32 am
by daddy
External subtitles works in mp4.
You just have to name the srt file exactly like the mp4 file.

Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Feb 12, 2021 2:04 am
by SeaZe
Hi I have read a lot about how to get Dolby Vision with FEL to play on my LG CX. It seems like the internal player of LG CX can only play Dolby Vision with MEL and not FEL is this true? Also what filetypes can it play, can the LG CX play mkv with Dolby Vision MEL? Will the LG CX’s internal player never be able to play Dolby vision with FEL?
If the internal player is not the way to go would I have to get the x700 to play Dolby Vision with FEL, or could some of these chinese oppo clones do it? Which one should I get, would the M9702 v3 be able to play Dolby Vision FEL with lossless audio? I saw one that costs 50 dollars on ebay is this legit? Where can I see what devices play Dolby Vision with FEL and the filetypes supported?
I’m new to the scene and just got my LG CX a few weeks ago would really appericiate if somebody could answer my questions. I feel like it is so hard to get information on this stuff compared to other tech stuff. There is just this and avforums that talk about it
Re: Dolby Vision now possible through MP4 Mux.
Posted: Fri Feb 12, 2021 7:56 pm
by shawnc22
galarond wrote: Fri Feb 12, 2021 6:48 pm
Im been reading for almost months now about this and the best choice is the lg ubk90 bluray player and use your external drive there, only till 2tb, it plays everything fine,but no isos or bluray rip carpets,so mkv, mp4, single dual layer all fine.
I don't know where you're getting your info from, but there have been no reports of the ubk90 being able to play dual layer files from any format outside of mp4, meaning it cannot do DL DV + lossless audio unless you're playing the physical disk. If you're reporting this info yourself from personal experience, then that's good news to the rest of us. The only devices that is confirmed capable of playing DL FEL DV + lossless audio is the x700/x800m2 (dual track m2ts/ts format) and the oppo 203/205 and its clones (bdmv/iso). And no, you will not find the oppo clones on ebay, especially not for under $300.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Feb 14, 2021 4:57 am
by shawnc22
galarond wrote: Sun Feb 14, 2021 4:17 am
As i read the x700 cant reproduce the new mkv dolby vision movies, the dual layer ones, or the dual layers mixed in 1 video file inside the mkv, im i wrong?
Like I said, the x700 can only play them in m2ts/ts containers. There are no devices out there at the moment that can play FEL DV in mkvs with full accuracy.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Feb 14, 2021 10:19 am
by tr000
daddy wrote: Thu Feb 11, 2021 6:32 am
External subtitles works in mp4.
You just have to name the srt file exactly like the mp4 file.
In general, yes, though some software has limited or no support for external .SRT files on .MP4 files (e.g., Windows Media Server).
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Feb 14, 2021 11:09 pm
by blenky
I have a Sony ubp-x700 player. Can someone explain how I can use that to play DV MT2S files? Do I have to copy them to USB or can I access files on my NAS? Cheers.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Feb 15, 2021 12:03 am
by staknhalo
If I don't care about per-pixel-perfection, outside of very obvious negative artifacts - would converting to profile 8 be best for broadest device playback compatibility vs keeping profile 7?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Feb 15, 2021 12:17 pm
by Roberespa
-Hello:
Could you provide me with the links to the latest version of
-python
-mp4muxer
and the one that brings everything incorporated including FFmpeg (The version that a user made that brings everything together).
Thanks a lot.
Please, I can't find the last x32 and 64 Bits (python)!
Give me a hand
-Greetings to Crodiales.

Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Feb 15, 2021 1:29 pm
by deadchip12
Vlc 4.0 is announced, but no dolby vision support. Sad.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Feb 15, 2021 3:41 pm
by lexyz
staknhalo wrote: Mon Feb 15, 2021 12:03 am
If I don't care about per-pixel-perfection, outside of very obvious negative artifacts - would converting to profile 8 be best for broadest device playback compatibility vs keeping profile 7?
Yes
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Feb 15, 2021 10:45 pm
by daicon
XTrojan wrote: Fri Jan 29, 2021 11:46 pm
Anyone know if the new Google ChromeCast (4th generation) can playback DV BluRays formats with full support FEL etc?
Here say that work DV FEL:
https://www.avpasion.com/foro/t/nuevo-c ... -mel.3588/
Any try?
is true?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Feb 16, 2021 1:43 am
by shawnc22
I'm skeptical. Even if it's capable of playing FEL, I suspect that it's just ignoring the EL like what the Shield is doing. I highly doubt that the Chromecast has the dual decoders needed to properly playback FEL.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Feb 16, 2021 7:55 am
by daicon
shawnc22 wrote: Tue Feb 16, 2021 1:43 am
I'm skeptical. Even if it's capable of playing FEL, I suspect that it's just ignoring the EL like what the Shield is doing. I highly doubt that the Chromecast has the dual decoders needed to properly playback FEL.
I understand.
I have written in the forum, asking you to use the samples that were uploaded here to check if a device is removing the FEL "layer".
Let's see if in the meantime, someone has more information.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Feb 16, 2021 8:14 am
by yossSP
shawnc22 wrote: Tue Feb 16, 2021 1:43 am
I'm skeptical. Even if it's capable of playing FEL, I suspect that it's just ignoring the EL like what the Shield is doing. I highly doubt that the Chromecast has the dual decoders needed to properly playback FEL.
Hi all, I have made the test with the new Chromecast with Google TV (CCWGTV)
Test platform:
- TV OLED Panasonic TX-65HZ1000
- Emby/Plex beta MediaServer on Windows 10 Pro 64 bits
- Chromecast with Google TV (2020)
The results:
- test DT DL FEL: playback as HDR10 (CCWGTV can't play dual track DV)
- test SL p8 RPU: playback as HDR10 (without noise)
- test ST DL FEL: playback as DV with noise during 5 seconds
test ST DL FEL
https://ibb.co/p4mQSgr
test SL p8 RPU
https://ibb.co/rbCXb8V
Latest Emby beta can't play the file as DV it plays as HDR10, but I can do it with latest Plex beta, but only during 5 seconds, rendering the noise of the FEL layer as the picture shows .
After this 5 seconds Plex stops the playback and shows an error saying something like there isn't enought power to decode the file. I receive this error when Plex can't play a file without transcoding because I disable transcoding in Plex, but it never has ben shown in the middle of a playback, it always show before rendering.
Well, after the last firmware update on february this little device never ceases to amaze me.
Also I can play with latest Plex beta FEL files of 90Mb/s without issues.
So, after these results, can we say that this device fully supports FEL media?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Tue Feb 16, 2021 2:00 pm
by staknhalo
Is there a trick to enabling HDR10 base layer on a DV P8.1 file? When I make one, the DV metadata/part is enabled/plays fine, but when I disable DV, the HDR10 base layer is there (obvious, I muxed it in) but it's not playing in HDR10 - there are no highlights at all. Everything is muted like 10-bit color data is there, but highlight/brightness part metadata removed. Mediainfo shows DV P8-1 with HDR10 BL/HDR10 compatibility though.
'mp4muxer --dv-profile 8 --dv-bl-compatible-id 1 --input-file Video.hevc --input-file Audio.aac --media-lang eng --output-file FILENAME.mp4'
'--dv-bl-compatible-id 1' - is for the HDR10 BL, '--dv-bl-compatible-id 2' would be for an SDR layer, am I missing some more mux commands I needed?