Dolby Vision now possible through MP4 Mux.

[FubbAyH]

Are not those files all FEL P7? We need P8 and P7 MEL to properly test to see if it's indeed fake DV

Good point. Yes, they are FEL P7.The Dolby 8.1 test file I tried played in Plex as HDR10 and with the extreme stutter. Do we know of any P7 MEL test files that have a very noticeable RPU for testing? Perhaps we could make one of those from the FEL test file using dovi_tool?

[FubbAyH]

Okay, I think I managed to make a MEL P7 version of the test file from AVS by demuxing, then using dovi_tool:

Code: Select all

dovi_tool.exe -m 1 convert --discard .\feltest.hevc

and then remuxing again. The file is 61% of the size of the original, so it looks like it worked.

The playback results are the same as the FEL P7. That is, in Plex it triggers DV mode on the TV, but RPU is ignored, so it still seems to be fake DV I'm afraid.

[RESET_9999]

Thank you very much for that link, those files are super useful. I just tested them out and the MKV plays in Plex and triggers the DV logo on the TV (yay!) but there are no dramatic brightness changes from 27 seconds as described in the post, so the RPU is being ignored and it is indeed fake DV (boo!) Playing the MP4 version puts the TV in HDR10 mode and the playback is extremely stuttery, so maybe it's trying to transcode on the fly.

try the files here viewtopic.php?p=111083#p111083

[FubbAyH]

try the files here viewtopic.php?p=111083#p111083

Thank you again! Those play in Plex on Apple TV with stutter, they show the DV logo, but there are no obvious brightness differences between them, so again the conclusion seems to be that the RPU is being ignored.

[RESET_9999]

try the files here viewtopic.php?p=111083#p111083

Thank you again! Those play in Plex on Apple TV with stutter, they show the DV logo, but there are no obvious brightness differences between them, so again the conclusion seems to be that the RPU is being ignored.

what if you make it profile 5(not following dv specs) ? is there a brightness adjustment at the 3-4 sec mark? or on the samples from avs forum
I wouldn't be surprised if the appletv can actually only play true profile 5 with a full range color from streaming websites.

[RESET_9999]

deleted

[FubbAyH]

what if you make it profile 5(not following dv specs) ? is there a brightness adjustment at the 3-4 sec mark? or on the samples from avs forum

What do you mean by "make it profile 5"? By messing with the metadata/headers? Is there a tool to do that easily?

I wouldn't be surprised if the appletv can actually only play true profile 5 with a full range color from streaming websites.

I suspect that's right, hence my idea to transcode my profile 7 rips to profile 5.

[RESET_9999]

What do you mean by "make it profile 5"? By messing with the metadata/headers? Is there a tool to do that easily?

demux, then :

Code: Select all

mp4muxer_64bits.exe --dv-profile 5 --input-file X:\DV.hevc --output-file output.mp4

[RESET_9999]

Anybody know if theres any rip of avengers 1 or 2 in DV? Dont know if theres a version of man of steel in DV too.

lol, you won't find that information on any public forum. Not even on private trackers forum.
There's a public way only for Widevine L3 which is for 1080p or lower resolution , 2160p use L1 and Disney+ use L1 even for 1080p.

[FubbAyH]

What do you mean by "make it profile 5"? By messing with the metadata/headers? Is there a tool to do that easily?

demux, then :

Code: Select all

mp4muxer_64bits.exe --dv-profile 5 --input-file X:\DV.hevc --output-file output.mp4

Thank you! I've tried that now and the fake profile 5 file plays as DV in Plex and Infuse, but I don't see a brightness change in either of them, unfortunately. So that's disappointing.

[glc650]

Thank you. That's great news because Infuse is my preferred player too. I'm testing the 8.1 test files from Dolby and from Mystery Box, though, and they are both playing as HDR10 for me. I've set output to 4K SDR with Match Dynamic Range on as you suggested, but I get the HDR10 logo on my TV when playing the files rather than the DV logo. Do you have some sample files that are working for you that I could try?

I've only come across one maybe two P8 files recently. I don't even recall which show they were. I know they were P8 (at least according to mediainfo) because I usually check all DV downloads to see what I need to do (if anything) to get them to work with my sources. I was actually surprised to see P8 downloads since all streaming is P5. I guess someone did that because they thought it would increase compatibility or maybe mediainfo just ID'd it wrong? I think I have had trouble with mkv P5 but not mp4 P5 (Infuse). I'll try the P8's from the link above and see what happens.

[RESET_9999]

Thank you! I've tried that now and the fake profile 5 file plays as DV in Plex and Infuse, but I don't see a brightness change in either of them, unfortunately. So that's disappointing.

wow, in the past years we've seen a lot of people commenting here on how they don't see anything wrong about profile 5 uhd bluray rip played on the appleTV 4K. They are actually watching fake DV !!!
nothing surprises me anymore from apple though, they can't even get SDR color right for two generations in a row and it took them years just to fix the 24fps playback.
the chance that they will allow any dv playback other than true p5 is close to 0 IMO

[glc650]

Thank you. That's great news because Infuse is my preferred player too. I'm testing the 8.1 test files from Dolby and from Mystery Box

I do have the glass blowing demo saved from elsewhere but there is clearly something up with the file. Mediainfo says it is HDR10 and it only plays back as SDR in Infuse. If I remux it it plays back as HDR10 even though mediainfo shows it being 8.05 DV. I have some LG P4 and P5 test files in .ts container. The P5s play as expected but the P4s play as SDR.

[staknhalo]

That Dolby Vision UHD 8.1 glass blowing test file doesn't have dvhe set as the codec ID (bug of their Dolby MP4 muxer)

Here is the file with the correct codec ID set: https://mega.nz/file/1XRRCS5C#1tRtdkEet ... XHiMOymkeU

[glc650]

That Dolby Vision UHD 8.1 glass blowing test file doesn't have dvhe set as the codec ID (bug of their Dolby MP4 muxer)

Here is the file with the correct codec ID set: https://mega.nz/file/1XRRCS5C#1tRtdkEet ... XHiMOymkeU

Infuse plays that one back as HDR10. My X800M2 plays it back as DV but without audio (unless I remux to ts).