Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion. Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules. |
14th September 2018, 18:07 | #52401 | Link |
Registered User
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,406
|
I am simply mildly annoyed that they call RGB "RGB 4:4:4", as if there could be something like "RGB 4:2:2". Describing the chroma sampling pattern for RGB formats makes no sense.
But nothing is wrong with the image, and it does have full resolution "chroma".
__________________
madVR options explained |
14th September 2018, 18:49 | #52403 | Link |
Registered Developer
Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,342
|
Not with HDMI you can't.
__________________
LAV Filters - open source ffmpeg based media splitter and decoders |
14th September 2018, 19:15 | #52404 | Link |
Registered User
Join Date: May 2007
Posts: 454
|
In relation to the new Nvidia RTX graphic cards and the video decoding they support I read the following for those intrsted (from guru3d)...
The video processor also has had a bit of an update and offers an improved video and hardware en/decoder. HEVC 8K30 HDR real-time sees 25% bitrate savings. H.264 up to 15% bitrate savings. Turing GPUs can drive two 8K displays at 60 Hz with one cable for each display. Turing’s new display engine supports HDR processing natively in the display pipeline. Tone mapping has also been added to the HDR pipeline. Tone mapping is a technique used to approximate the look of high dynamic range images on standard dynamic range displays. Turing supports the tone mapping formula defined by the ITU-R Recommendation BT.2100 standard to avoid color shift on different HDR displays. Turing GPUs also ship with an enhanced NVENC encoder unit that adds support for H.265 (HEVC) 8K encode at 30 fps. The new NVENC encoder provides up to 25% bitrate savings for HEVC and up to 15% bitrate savings for H.264. Turing’s new NVDEC decoder has also been updated to support decoding of HEVC YUV444 10/12b HDR at 30 fps, H.264 8K, and VP9 10/12b HDR. |
15th September 2018, 01:52 | #52406 | Link |
Registered User
Join Date: Nov 2012
Posts: 32
|
Hi guys!
I didn't want to start a flame, just understand and learn a little bit more from who knows really more than I do! That's my situation now: after checking every option in LAV, the output is NV12 for SD and HD 8 Bit (MPeg2 DVDs, and H264 .mkv) and P010 for HEVC 10 Bit UHD; with the same settings of before, madVR produces dropped frames: I suppose because colorspace conversion and chroma upsampling are on his shoulder, and I have to re-optimize. If I simply enable SVP to do frame rate conversion for SD and HD, LAV changes automatically his output to YV12: I suppose to "talk" with FFDshow input, am I right? In this situation, FFDShow output at NV12: wouldn't be better to force his output at YV12 (to avoid the YV12 - > NV12 conversion), and let madVR do directly the YV12 - > RGB conversion?
__________________
Best Regards! Leo! |
15th September 2018, 02:18 | #52407 | Link | |||
Registered User
Join Date: Oct 2012
Posts: 7,903
|
Quote:
Quote:
Quote:
|
|||
15th September 2018, 19:22 | #52408 | Link | |
Registered User
Join Date: Jul 2007
Posts: 161
|
Quote:
|
|
15th September 2018, 20:10 | #52410 | Link |
Registered User
Join Date: Oct 2016
Posts: 896
|
They can't claim they're HDMI 2.1 yet even if the hardware has been designed to be, because they have to wait for the official certification test spec: https://www.hdmi.org/manufacturer/hdmi_2_1/ (section 'Testing and Certification FAQs')
Samsung just announced a 8K TV but when asked if it had HDMI 2.1 inputs they said they had to wait for the certification to say anything: https://www.cnet.com/reviews/samsung-85q900fn-preview/ (search page for HDMI 2.1) So if you absolutely want 4K 60 Hz 10/12-bit RGB, the best is to specifically ask NVIDIA if the cards support that, but not ask them if the cards will be HDMI 2.1.
__________________
HTPC: Windows 10 22H2, MediaPortal 1, LAV Filters/ReClock/madVR. DVB-C TV, Panasonic GT60, Denon 2310, Core 2 Duo E7400 oc'd, GeForce 1050 Ti 536.40 |
15th September 2018, 20:16 | #52411 | Link | |
Registered User
Join Date: Jul 2007
Posts: 161
|
Quote:
Last edited by kostik; 15th September 2018 at 20:18. |
|
15th September 2018, 20:30 | #52412 | Link |
Registered User
Join Date: Oct 2012
Posts: 7,903
|
GPU just have HDMI ports end of story. what type of signal it can send depends on there display engine. if there display engine can produce a signal that is HDMI 2.1 complain they can update the driver to do that.
that's why all kepler cards can do HDMI 2.0 with the HDMI 1.4 bandwidth the a b c was always meaningless for GPUs the display engine matters and well HDCP which can't be updated. |
15th September 2018, 20:34 | #52413 | Link |
Registered Developer
Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,342
|
Adding features like that is just software though, what we're really after with HDMI 2.1 is increased bandwidth. Now they may have planned ahead for that, but its a different situation entirely, since it needs stronger hardware to be able to do the increased bandwidth.
__________________
LAV Filters - open source ffmpeg based media splitter and decoders |
15th September 2018, 20:38 | #52414 | Link |
Registered User
Join Date: Oct 2012
Posts: 7,903
|
according to the source the hardware to create a signal "like" that is present.
as said before you should never believe in such a thing and never buy hardware in hope they add it until they confirm it and/or it is added. |
15th September 2018, 21:11 | #52415 | Link |
Registered User
Join Date: May 2004
Posts: 5,351
|
Which is great and all but everything in your chain has to support it. Meaning you need a TV that can receive it even if the GPU is capable. And if you pass it through a receiver, the receiver must also be compliant. That's why Nev is waiting to upgrade all his stuff. LOL I got impatient and bit the bullet this summer so I'm stuck on HDMI 2.0 equipment. But if you want full bandwidth, remember that it's more than just a GPU upgrade.
__________________
HTPC: Windows 11, AMD 5900X, RTX 3080, Pioneer Elite VSX-LX303, LG G2 77" OLED |
16th September 2018, 07:56 | #52416 | Link |
Registered User
Join Date: Dec 2007
Posts: 652
|
The good news is when Madshi's HDR->SDR is done, we can just run everything in 8-Bit and there is plenty of Bandwidth with HDMI 2.0 even with UHD @ 60p. I'll not need to upgrade to 2.1 till 8K content comes out... and that is going to be awhile anyway.
|
16th September 2018, 09:24 | #52417 | Link |
Is this for real?
Join Date: Mar 2016
Location: Norway
Posts: 168
|
Have Madshi stopped development of MadVr? There hasn't been any new release since late April as far as I can see.
__________________
My HTPC : i9 10900K | nVidia RTX 4070 Super | TV : Samsung 75Q9FN QLED |
16th September 2018, 12:34 | #52420 | Link | |
Registered User
Join Date: May 2018
Posts: 259
|
Quote:
All I need to do is change 1 number, and it either does not save, it saves what I don't want, and it does its own thing at a seemingly locked nVidia framerate. How did you get it to keep a custom res you actually needed, or how does it read it as whenever I have something in there it ignores it anyway ? |
|
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
Thread Tools | Search this Thread |
Display Modes | |
|
|