Try to set the True-HD audio track to the second audio track in the mp4 file.DaMacFunkin wrote: ↑Mon Sep 28, 2020 6:08 amWhat audio file did you create for your mp4?Decidueye wrote: ↑Sun Sep 27, 2020 9:52 amHello everyone first post here complete newbie. I wanted to try if Dolby Vision playback with Mission Impossible movies is possible with my LG C9
First tried with Ghost Protocol. I followed the instructions on the first post and double checked, the new mp4 is successfully created but it doesn't work. The TV cannot read the file and says it is not supported.
Is there something I did incorrectly or is it because of the file or my TV?
Your LG won’t play an mp4 if the audio is True-HD.
Dolby Vision now possible through MP4 Mux.
Re: Dolby Vision now possible through MP4 Mux.
Re: Dolby Vision now possible through MP4 Mux.
Thanks for the feedback
With my second upload I should have solved the missing libraries problem.
Refer to THIS post (ignore the red line).
Keep in mind that you are in the middle of a testing phase (FEL -> MEL, read HERE an HERE).
To create unmodified files, just use "MUX.bat" and "DEMUX.bat" (following the same logic of the instructions of the first linked post)
Re: Dolby Vision now possible through MP4 Mux.
Yes, I did not use the TrueHD audio. I used the AC3 one for testing purposes. I also do not have dedicated streaming devices like the Shield.DaMacFunkin wrote: ↑Mon Sep 28, 2020 6:08 amWhat audio file did you create for your mp4?Decidueye wrote: ↑Sun Sep 27, 2020 9:52 amHello everyone first post here complete newbie. I wanted to try if Dolby Vision playback with Mission Impossible movies is possible with my LG C9
First tried with Ghost Protocol. I followed the instructions on the first post and double checked, the new mp4 is successfully created but it doesn't work. The TV cannot read the file and says it is not supported.
Is there something I did incorrectly or is it because of the file or my TV?
Your LG won’t play an mp4 if the audio is True-HD.
Only tried playing it back through DLNA (through a Windows 10 PC) and USB drive using LG's WebOS app / internal player. Also the error message is "File is not recognized". But it should work since the OP used his USB drive as well?
Re: Dolby Vision now possible through MP4 Mux.
Thank you for your great works. If you like, I can provide a zidoo z9x media player for your test. It does not require a special version of exoplayer to be installed. DV Mel MKV files can be played directly.
Re: Dolby Vision now possible through MP4 Mux.
My Windows download link doesn't work.yusesope wrote: ↑Mon Sep 28, 2020 7:39 amThanks for the feedback
With my second upload I should have solved the missing libraries problem.
Refer to THIS post (ignore the red line).
Keep in mind that you are in the middle of a testing phase (FEL -> MEL, read HERE an HERE).
To create unmodified files, just use "MUX.bat" and "DEMUX.bat" (following the same logic of the instructions of the first linked post)
Re: Dolby Vision now possible through MP4 Mux.
So these are the steps I take to convert FEL to MEL and remux with TrueHD/Atmos into an MKV:
- Extract hevc streams with ffmpeg: ffmpeg.exe -i X:\BDMV\STREAM\XXXXX.m2ts -map 0:0 -c copy X:\BL.hevc -map 0:1 -c copy X:\EL.hevc
- Feed both hevc files from step 1 into MUX_AND_CONVERT_TO_MEL.bat
- Feed single hevc file from step 2 into DEMUX.bat
- Use latest tsMuxeR nightly, add both hevc files from step 3 into input along with X:\BDMV\STREAM\XXXXX.m2ts from step 1, remove duplicate video tracks and output to ISO
- Use MakeMKV to convert ISO to MKV
I've converted and tested a few full length movies and the above method works flawlessly.
Thank you yusesope for all your hard work.
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Re: Dolby Vision now possible through MP4 Mux.
Does this have any benefit versus the original method in the first page if I own a c9 oled tv? Sorry haven't followed this thread for a while.iamTa wrote: ↑Mon Sep 28, 2020 11:49 amSo these are the steps I take to convert FEL to MEL and remux with TrueHD/Atmos into an MKV:
- Extract hevc streams with ffmpeg: ffmpeg.exe -i X:\BDMV\STREAM\XXXXX.m2ts -map 0:0 -c copy X:\BL.hevc -map 0:1 -c copy X:\EL.hevc
- Feed both hevc files from step 1 into MUX_AND_CONVERT_TO_MEL.bat
- Feed single hevc file from step 2 into DEMUX.bat
- Use latest tsMuxeR nightly, add both hevc files from step 3 into input along with X:\BDMV\STREAM\XXXXX.m2ts from step 1, remove duplicate video tracks and output to ISO
These MKVs can then be played back using the modded ExoPlayer and potentially the latest Emby beta (I've not tested Emby).
- Use MakeMKV to convert ISO to MKV
I've converted and tested a few full length movies and the above method works flawlessly.
Thank you yusesope for all your hard work.
Re: Dolby Vision now possible through MP4 Mux.
iamTa wrote: ↑Mon Sep 28, 2020 11:49 amSo these are the steps I take to convert FEL to MEL and remux with TrueHD/Atmos into an MKV:
- Extract hevc streams with ffmpeg: ffmpeg.exe -i X:\BDMV\STREAM\XXXXX.m2ts -map 0:0 -c copy X:\BL.hevc -map 0:1 -c copy X:\EL.hevc
- Feed both hevc files from step 1 into MUX_AND_CONVERT_TO_MEL.bat
- Feed single hevc file from step 2 into DEMUX.bat
- Use latest tsMuxeR nightly, add both hevc files from step 3 into input along with X:\BDMV\STREAM\XXXXX.m2ts from step 1, remove duplicate video tracks and output to ISO
These MKVs can then be played back using the modded ExoPlayer and potentially the latest Emby beta (I've not tested Emby).
- Use MakeMKV to convert ISO to MKV
I've converted and tested a few full length movies and the above method works flawlessly.
Thank you yusesope for all your hard work.
Can I ask for the ffmpeg download link?
Last edited by Tomas on Mon Sep 28, 2020 1:42 pm, edited 1 time in total.
Re: Dolby Vision now possible through MP4 Mux.
Ive been reading this thread for a very long time, but i settled for a method that works for me, and im wondering, would there be benefits of doing it differently / with newer tools?
Im still using:
- tsMuxer (can be any version im just using it for demuxing)
- bl_el_rpu_builder_v0.0.4_alfa_initial_release (combining BL+EL+RPU)
- v1.0.0 mp4muxer (making the final .mp4)
Im using profile 4 with mp4muxer
I know i do not get lossless audio with this, but with my current setup it is not necessary, but i wonder, is there benefit picturewise to change these tools/steps?
Im in the process of buying new audio equipment so i guess i have to rerip everything (i guess thats one big downside of doing the mp4s)
Thank you
Im still using:
- tsMuxer (can be any version im just using it for demuxing)
- bl_el_rpu_builder_v0.0.4_alfa_initial_release (combining BL+EL+RPU)
- v1.0.0 mp4muxer (making the final .mp4)
Im using profile 4 with mp4muxer
I know i do not get lossless audio with this, but with my current setup it is not necessary, but i wonder, is there benefit picturewise to change these tools/steps?
Im in the process of buying new audio equipment so i guess i have to rerip everything (i guess thats one big downside of doing the mp4s)
Thank you
Re: Dolby Vision now possible through MP4 Mux.
Yes, HD audio.deadchip12 wrote: ↑Mon Sep 28, 2020 12:10 pmDoes this have any benefit versus the original method in the first page if I own a c9 oled tv? Sorry haven't followed this thread for a while.
https://ffmpeg.org/download.html
https://www.gyan.dev/ffmpeg/builds/
Re: Dolby Vision now possible through MP4 Mux.
Appreciate the explanation as always. From that snippet of the dolby docs again (https://pbs.twimg.com/media/D9_hnb9XkAEIsF5.png) and if I'm reading it correctly, it seems like when some content is mastered on a 4000-nit display, the creator has a choice of either using FEL (1000-nit base layer + differential data in the EL to reconstruct the original 12bit signal) or MEL (4000-nit base layer + metadata only and accept the information lost of not being able to rebuild the 12bit signal). I guess what I'm wondering is if it may eventually be possible to use the differential data in the FEL's EL to build that high luminance base layer and pretend that the creator had chosen to go the MEL route in the first place. Agreed that it's probably not a big deal with the limitations of today's displays, but just curious nonetheless .yusesope wrote: ↑Sun Sep 27, 2020 9:12 amDuring decoding, the image generated by the data present in EL represents a residue (difference) of the original video content compared to the image obtained by processing the data present in BL.
EL is a 10-bit video bitstream that carries the residual between the mezzanine source and the base layer and the dynamic metadata for Dolby Vision.
By modifying the RPU the idea is to tell the decoder that the residual signal is equal to zero and that it should not bother to "read" the content.
The rest of the information, both static (eg, MaxFALL and MaxCLL) and dynamic (eg, min, max and avg luminance of each shot) remain unchanged.
By giving up the process of decoding the data in EL, I think it is normal that it is no longer possible to generate the 12bit signal as it was mastered by the creators (using monitors up to 10000 nits).
Keep also in mind that current consumer displays rarely exceed 2000 nits (LCD). OLEDs peak at 600-700 nits, and few home projectors are lucky enough to hit 150 nits. When the signal exceeds the capability of the TV, tone mapping is activated by reducing the luminance as the signal approaches the clipping point of the display (following a Perceptual Quantizer (PQ) curve, remaps luminance from the source values to the lower values the display can support)
iamTa wrote: ↑Mon Sep 28, 2020 5:01 pmYes, HD audio.deadchip12 wrote: ↑Mon Sep 28, 2020 12:10 pmDoes this have any benefit versus the original method in the first page if I own a c9 oled tv? Sorry haven't followed this thread for a while.
If you're playing off of the C9's internal player, then no. The C9 cannot playback truehd audio tracks and it also cannot play mkvs.
Re: Dolby Vision now possible through MP4 Mux.
True, although you could use one of the Plex/Emby apps in the LG app store for HD audio but I assume they won't be able to render DoVi at this point.
For HD audio and DoVi MKVs you'll need a Shield/Fire Stick etc with the modded ExoPlayer.
Re: Dolby Vision now possible through MP4 Mux.
No, it's a hardware limitation, not a software one. LG OLEDs cannot process truehd audio, regardless of the app. If you try to use Plex at least, it will try to transcode. If you have to play files off of your TV, stick with mp4.
Re: Dolby Vision now possible through MP4 Mux.
deadchip12 wrote: ↑Mon Sep 28, 2020 12:10 pmDoes this have any benefit versus the original method in the first page if I own a c9 oled tv?
No, no benefit! Unless you buy a high quality sound system.
Keep using mp4.
Basically you are asking for a DoVi software decoder ...
There would no longer be a need for a hardware decoder (and relative license).
Any device (powerful enough) could play DV content.
I'm sorry, I don't think I'm capable of it
Re: Dolby Vision now possible through MP4 Mux.
Just tested this using Xplay and you're absolutely right. The last time I used these LG app store apps I didn't have my 5.1.4 setup and wrongly assumed they would be able to bitstream HD audio.