Dolby Vision now possible through MP4 Mux.

[sergonnn111]

Guys can i do ts file dolby vision with ts muxer nightly for native tv player LG OLED 2018 from blu ray bdmv dolby vision ?

[RESET_9999]

Like I posted last month
mp4box with following command can also get dolby vision to work:
mp4box -add BL_RPU.hevc -new p5.dvh1.mp4
mp4box -add BL_RPU.hevc:dv-profile=8.1 -new p8.hvc1.mp4(this doesn't work, it's a SMB bug)
mp4box -add BL_RPU.hevc:dv-profile=f8.1 -new p8.dvh1.mp4

sorry, your post was about an ipad and sdr output, I didnt give much attention to it back then.

But fake p5.dvh1 is the most stable way, it guarantee DV play.
Besides there are official release use fake p5.dvh1(those Apple TV screensaver).
And I've never seen p8 with dvh1 except from my experiment result.
So I think it's better for us to not make this even more complicated and just stick to fake p5.dvh1 for now.

I disagree, I prefer using a format that follows Dolby's specifications.
Apple products are stupid and always does stuff differently, I learned to never trust them.

I don't know what the mp4 headers should be, so I just let those tools to decide.

I did not change the headers!
but when you import LPCM audio to an existing DV mp4 with mp4box, the headers are not the same and the pcm audio no longer works on AppleTV.

What's that? Will that cause a problem in DV play? If it doesn't affect final image, I wouldn't bother to change it.

That's the mastering display luminance specs. I don't know if it affects the final image but it can easily be fixed, see quietvoid's reply.

[sw5163]

But fake p5.dvh1 is the most stable way, it guarantee DV play.
Besides there are official release use fake p5.dvh1(those Apple TV screensaver).
And I've never seen p8 with dvh1 except from my experiment result.
So I think it's better for us to not make this even more complicated and just stick to fake p5.dvh1 for now.

I disagree, I prefer using a format that follows Dolby's specifications.

p8.dvh1 contrast is wrong on my iPad, if ATV can handle it, okay then.

Apple products are stupid and always does stuff differently, I learned to never trust them.

I agree.

That's the mastering display luminance specs. I don't know if it affects the final image but it can easily be fixed, see quietvoid's reply.

Thanks for the explanation!

[RESET_9999]

p8.dvh1 contrast is wrong on my iPad, if ATV can handle it, okay then.

oh indeed, that could be a problem... since your ipad output SDR, could you take screenshots that show the difference?
thanks

@ragico, could you compare the P5 and P8 version of the SM clip please?

[ragico]

p8.dvh1 contrast is wrong on my iPad, if ATV can handle it, okay then.

@ragico, could you compare the P5 and P8 version of the SM clip please?

To my eyes, P5 looks brighter and has more contrast.

[sw5163]

p8.dvh1 contrast is wrong on my iPad, if ATV can handle it, okay then.

oh indeed, that could be a problem... since your ipad output SDR, could you take screenshots that show the difference?
thanks

Sure.
From Apple screen saver: (left p8.dvh1 right p5.dvh1)

1.PNG (1.45 MiB) Viewed 18165 times

From your test sample: (left p8.dvh1 right p5.dvh1)

The attachment 2.PNG is no longer available

The attachment 3.PNG is no longer available

These screenshots can stand for what I'm seeing.
Left image has very low contrast, looks definitely wrong.
But RPU are working on both.
So I guess Apple treat p8.dvh1 as HLG BL as they were shot by iPhone.

[RESET_9999]

p8 clearly isn't tonemapped to SDR on those pic. (looks like PQ)

but since ragico report the same on the ATV, then I stand corrected.

[sw5163]

p8 clearly isn't tonemapped to SDR on those pic. (looks like PQ)

I'm not sure but Apple recognize them as HDR, see top left corner.

But RPU are working on both.
So I guess Apple treat p8.dvh1 as HLG BL as they were shot by iPhone.

You may also wanna answer sergonnn111's question? He's been asking a several times.

Guys can i do ts file dolby vision with ts muxer nightly for native tv player LG OLED 2018 from blu ray bdmv dolby vision ?

[RESET_9999]

You may also wanna answer sergonnn111's question? He's been asking a several times.

yeah I don't answer those questions anymore
All he has to do is to check the Playback Device sheet in my signature.

[sw5163]

You may also wanna answer sergonnn111's question? He's been asking a several times.

yeah I don't answer those questions anymore
All he has to do is to check the Playback Device sheet in my signature.

Right, @sergonnn111 maybe do more research before asking? I actually tested all profiles and codecs I could think of before posting the Apple MEL thing. I even tried to hybrid a p5.dvh1 and concat a FEL track to it to see if Apple indeed doesn't support FEL, LOL.

[RESET_9999]

concat a FEL track to it to see if Apple indeed doesn't support FEL, LOL.

yep, i tried that too in the Windows 10 app LOL.

about mp4box, I wonder if we should use:

-brand mp43isom -ab dby1

I have no idea what it does but i always used it with mp4box. I got that from yusesope a long time ago i think.

[sw5163]

about mp4box, I wonder if we should use:

-brand mp43isom -ab dby1

I have no idea what it does but i always used it with mp4box. I got that from yusesope a long time ago i think.

I don't know what that is either. I never used them, but seems everything is fine so far.
I like to use as few command as possible and left other things I don't know for the tool to decide.
I actually have tried yusesope's tool back in 2020. Back then there is no way to "remove_mapping" so I got green screen on iPad. But I knew DV on Apple is possible, it's just we didn't know how to modify RPU yet. Just like we just don't know how to do PCM/atmos now.
Look how far we've come from there.

update: they set the brand of file, so I don't think they will affect final image.

屏幕截图 2022-07-18 203947.png (19.5 KiB) Viewed 17556 times

[sw5163]

i tried:
-map 0:AUDIO_STREAM_ID -c pcm_s24be -ar 48000 -rf64 auto \path\to\audio.mov
and
-map 0:AUDIO_STREAM_ID -c pcm_s24le -ar 48000 -rf64 auto \path\to\audio.mov

How do you decide what pcm encoder to use?
My logic here is ffmpeg show:
Stream #0:2[0x1100]: Audio: truehd (AC-3 / 0x332D4341), 48000 Hz, 7.1, s32 (24 bit)
s̶3̶2̶ ̶(̶2̶4̶ ̶b̶i̶t̶)̶ ̶I̶ ̶t̶a̶k̶e̶ ̶t̶h̶a̶t̶ ̶a̶s̶ ̶2̶4̶ ̶b̶i̶t̶ ̶a̶u̶d̶i̶o̶ ̶+̶ ̶8̶ ̶b̶i̶t̶ ̶a̶t̶m̶o̶s̶
S̶o̶ ̶w̶o̶u̶l̶d̶ ̶i̶t̶ ̶b̶e̶ ̶c̶o̶r̶r̶e̶c̶t̶ ̶t̶o̶ ̶u̶s̶e̶ ̶p̶c̶m̶_̶s̶2̶4̶l̶e̶ ̶o̶r̶ ̶p̶c̶m̶_̶s̶3̶2̶l̶e̶?
Use pcm_s24le (little endian for compatibility)
If we are going to lose atmos anyway.

If we don't set -ar 48000 manually, will it chose proper sample rate automatically?
Also may I ask what does -rf64 auto mean?
Okay, found it:https://en.wikipedia.org/wiki/RF64

[RESET_9999]

i tried:
-map 0:AUDIO_STREAM_ID -c pcm_s24be -ar 48000 -rf64 auto \path\to\audio.mov
and
-map 0:AUDIO_STREAM_ID -c pcm_s24le -ar 48000 -rf64 auto \path\to\audio.mov

How do you decide what pcm encoder to use?
My logic here is ffmpeg show:
Stream #0:2[0x1100]: Audio: truehd (AC-3 / 0x332D4341), 48000 Hz, 7.1, s32 (24 bit)
s32 (24 bit) I take that as 24 bit audio + 8 bit atmos
So would it be correct to use pcm_s24le or pcm_s32le? (little endian for compatibility I think)
If we are going to lose atmos anyway.

If we don't set -ar 48000 manually, will it chose proper sample rate automatically?
Also may I ask what does -rf64 auto mean?

I have no idea, I ended up using your command line in my script. I'm really not an expert with audio encoding.

I got those cmd lines from yusesope as well:
https://mrmc.tv/forum/viewtopic.php?f=1 ... &start=310

[Mithrandir]

Hello, I've tried latest DoVI scripts (1.4.6).

Did the following:
1. Extracted all scripts and tools to C:\Temp\Dovi_Scripts
2. Commented out Dolby Encoder because I don't have it (line 59) ::set DEE_path=D:\other\DEE5.2.0\dee.exe
3. set tsmuxer.popup=YES and mkvtoolnix.popup=NO
4. Started .bat file and pointed it to network share

I did the following workflow 1-7-2-2

What happened is that whole TEMP folder was completely deleted.
This was an error message:
The process cannot access the file because it is being used by another process.
The system cannot find the path specified.

I didn't have anything critical in Temp folder so complete disaster was avoided (thank god I didn't run it from Program files).

But why it did delete the folder below where scripts are run (it also deleted scripts and folder itself).