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Re: Dolby Vision now possible through MP4 Mux.
Posted: Sat Jul 25, 2020 11:41 pm
by SamuriHL
RESET_9999 wrote: Mon Jul 20, 2020 2:10 pm
in the scaler tab, you select ''RGB FULL'' for colorspace and ''follow'' for deep color.
Most people will likely understand this inherently but it should be noted for those that may wonder why the picture "looks dark" with this fix, if you're on an LG display while this fix is enabled, you will want to change the Black setting to HIGH in the picture mode. Because black is getting expanded to full (obviously, I know). I'm using this fix right now with Top Gun. Man, this is bliss.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 4:22 pm
by FusionNeo
https://www.nvidia.com/en-us/geforce/fo ... n/2717745/
Someone copy/pasted RESET_9999's post with the fix for Dolby Vision so I asked NVIDIA to take a look. Apparently they're testing it internally and said removing the BT.2020 flag did not make a difference on their end. They have ordered an HDFury to see what else it's doing to try to eliminate that red push.
Glad to see they are listening and working on it. If that red push gets eliminated, I think this will be THE device for Dolby Vision since you'll be able to playback through Plex which is far better than the network capabilities of either the M9702 or the X700.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 4:43 pm
by SamuriHL
Yes, if they fix this foolish issue it'll be the best device for DV playback. It's already 90% of the way there. Player support will continue to improve, nVidia will get their uhhh stuff together and get the bugs fixed, and we'll have a unified library that'll play on anything.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 4:53 pm
by RESET_9999
SamuriHL wrote: Sat Jul 25, 2020 11:41 pm
Most people will likely understand this inherently but it should be noted for those that may wonder why the picture "looks dark" with this fix, if you're on an LG display while this fix is enabled, you will want to change the Black setting to HIGH in the picture mode. Because black is getting expanded to full (obviously, I know). I'm using this fix right now with Top Gun. Man, this is bliss.
I didn't change any of my LG C8 Dolby vision settings and there was no brightness or black level difference at all. But I only tested with true profile 5 DV which is encoded in color range ''FULL'".
I have to try with a uhd-bd remux which is encoded in a "limited" color range but my x700 also send those uhd-bd DV in RGB FULL, so I don't expect any difference(at least not with MEL movies).
Disney+ file I tested:
Code: Select all
Video
ID : 4117 (0x1015)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@High
HDR format : Dolby Vision, Version 1.0, dvhe.05.06, BL+RPU
Codec ID : 36
Duration : 2 h 4 min
Bit rate : 20.9 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.105
Stream size : 18.2 GiB (85%)
Color range : Full
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 4:56 pm
by RESET_9999
FusionNeo wrote: Sun Jul 26, 2020 4:22 pm
Apparently they're testing it internally and said removing the BT.2020 flag did not make a difference on their end.
that's surprising. The vertex definitely fixes the DV red push on netflix, disney+, movies anywhere... So I guess the vertex is doing more than just removing the bt2020 flag..
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 4:58 pm
by SamuriHL
RESET_9999 wrote: Sun Jul 26, 2020 4:53 pm
SamuriHL wrote: Sat Jul 25, 2020 11:41 pm
Most people will likely understand this inherently but it should be noted for those that may wonder why the picture "looks dark" with this fix, if you're on an LG display while this fix is enabled, you will want to change the Black setting to HIGH in the picture mode. Because black is getting expanded to full (obviously, I know). I'm using this fix right now with Top Gun. Man, this is bliss.
I didn't change any of my LG C8 Dolby vision settings and there was no brightness or black level difference at all. But I only tested with true profile 5 DV which is encoded in colorspace ''FULL'".
I have to try with a uhd-bd remux which are encoded in a limited colorspace but my x700 also send those uhd-bd DV in RGB FULL, so I don't expect any difference(at least not with MEL movies).
Disney+ I tested:
Code: Select all
Video
ID : 4117 (0x1015)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@High
HDR format : Dolby Vision, Version 1.0, dvhe.05.06, BL+RPU
Codec ID : 36
Duration : 2 h 4 min
Bit rate : 20.9 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.105
Stream size : 18.2 GiB (85%)
Color range : Full
I realized later that the black level when the TV is in Dolby Vision mode is greyed out and locked. So it would appear that it doesn't matter.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 5:06 pm
by FusionNeo
RESET_9999 wrote: Sun Jul 26, 2020 4:56 pm
FusionNeo wrote: Sun Jul 26, 2020 4:22 pm
Apparently they're testing it internally and said removing the BT.2020 flag did not make a difference on their end.
that's surprising. The vertex definitely fixes the DV red push on netflix, disney+, movies anywhere... So I guess the vertex is doing more than just removing the bt2020 flag..
That's what I'm thinking as well. It does make a noticeable difference in the screenshots you posted, particularly in the metal on C-3PO so the Vertex definitely fixes it. Either way, looks like NVIDIA is purchasing a Vertex so they can test on their end and see what the Vertex is doing exactly that resolves the issue. Thanks for sharing your findings, I think it's pushing them in the right direction and sooner or later they'll get the colorspace right without the need for additional hardware.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Jul 26, 2020 5:53 pm
by SamuriHL
That means, however, that we should be able to play around with the HD Fury settings to see if we can narrow down exactly what the Fury is doing to fix the issue. If it's not that it's stripping out bt.2020, perhaps it's a colorspace change.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 7:26 am
by lexyz
shawnc22 wrote: Sat Jul 18, 2020 11:31 pm
fingers crossed for incidental FEL support on the Shield
As far as I know there is no test pattern to tell if FEL active or not.
S&M UHD Benchmark disk has DV demo clip both FEL and MEL versions. It should be good source to spot any difference.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 3:24 pm
by shawnc22
lexyz wrote: Mon Jul 27, 2020 7:26 am
shawnc22 wrote: Sat Jul 18, 2020 11:31 pm
fingers crossed for incidental FEL support on the Shield
As far as I know there is no test pattern to tell if FEL active or not.
S&M UHD Benchmark disk has DV demo clip both FEL and MEL versions. It should be good source to spot any difference.
I’m sure @RESET9999 has just been combing through his collection looking for good scenes to compare. Is the benchmark disc widely available?
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 3:35 pm
by RESET_9999
shawnc22 wrote: Mon Jul 27, 2020 3:24 pm
I’m sure @RESET9999 has just been combing through his collection looking for good scenes to compare. Is the benchmark disc widely available?
Indeed. I planned on comparing Alita UHD-BD on x700
VS Shield BL+EL+RPU
VS Shield BL+RPU
VS real profile 5 BL+RPU Movies Anywhere.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 3:41 pm
by SamuriHL
The Spears and Munsil UHD benchmark disc is a must have IMO. I use it for testing madvr's tone mapping but it's useful for calibration as well as other things. It's not available for download, no, but, you can purchase it easily enough.
EDIT:
Hmmm, that's a good idea actually. Rip both the FEL and MEL tracks to MKV and run them through the SHIELD using Kodi+ExoPlayer and see if there's a notieable difference.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 4:12 pm
by lexyz
shawnc22 wrote: Mon Jul 27, 2020 3:24 pm
Is the benchmark disc widely available?
Yep. On Amazon and in the wild.
Full name is "Spears & Munsil UHD HDR Benchmark"
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 4:21 pm
by shawnc22
Ah I see, although there is a chance that the MEL and FEL tracks were mastered differently so you might see differences that're not attributed to the Shield's playback abilities. You might have to check with BDInfo to see if the BL from both tracks are the same size/bitrate, but even then the RPUs might also be different between the MEL/FEL tracks.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Mon Jul 27, 2020 5:58 pm
by SamuriHL
Maybe but I've looked at them both on the UB820 and didn't notice any discernible difference. And this is a disc I've looked at a lot. Far more than I care to think about. LOL