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You're bringing back some hurtful memories. Haha, I went through a similar process. Had to teach myself a lot of things, grab ideas from the few rare posts out there. But MPV has come a long way since, and has a decent community.

Not sure if you can get everything setup the way you want. But I'll try and give you some useful information.

Here's the absolute massive list of all the setting and configuration you can do:

https://mpv.io/manual/stable/

Here's the reddit community if you need to ask any questions, there should be people there that can help that know more than I do:

https://www.reddit.com/r/mpv/

There's some helpful people around here too.

What CPU and GPU are you using?

And what monitor/TV are using to watch and at what resolution?

MadVR is generally used to upscale videos.

So for example you give it a picture in 720p and you're playing it on a 1080p screen, instead of just stretching the 720p picture to 1080, it stretches it but it adds detail and sharpness for example and re-calculates colour spaces to give you a better quality picture.

So MadVR improves picture quality.

SVP transforms lower frame rate videos to higher frame rate videos, to remove motion blur basically.

See while a picture or a frame is sharp, moving pictures (like videos, movies, tv shows) are a little blurry because the standard was always to film in 24 frames per second for example.

What SVP does is for example transform those 24 frames into 48 frames in each second video (for example if you're using double the frame rate method). How SVP does this is complicated, but imagine frame 1 and 2 get separated, and a new frame is added in the middle of them. Say in frame one the man is running at the left of the picture, and in frame two he's in the middle of the picture, what SVP does is add an extra frame of the man being in between those two points, so the MOTION becomes smoother and the overall picture becomes less blurry.

Imagine playing a videogame at 30 fps compared to playing a video game at 60 fps, or playing a game at 120 fps. It's the same game. It's the same speed, but it's less blurry and feels and looks smoother the higher the frame rate.

Hope this helps. So SVP makes videos smoother and less blurry, that's the idea behind it. While Madvr improves the picture quality of those videos.

I can't explain the technical differences, but there's a great article linked below (where I got the shaders from originally), which has comparison charts to other shaders.

just scroll past the updates at the top and for the charts you can scroll right and left on them to see more comparisons:
https://artoriuz.github.io/mpv_upscaling.html

Yes I love the picture quality of MPV with 4K HDR content.

Is it? MPC x64 was always stuttering with 4K HDR for me (it was the main reason I switched away), and was extremely demanding even for just 4K it was using a lot of CPU power, but it was working (for non-HDR content).

I have 4790K @ 4.6Ghz right now and 4K HDR requires ~40% CPU usage with MPV (but MPV improved a lot over the last year). This was impossible with MPC x64, because CPU usage was ~90% I think and never worked (stuttering).

Did something change with MPC x64 that I don't know about over the last year. Anyway I am very happy with MPV and its performance, so I doubt I will switch back (I will put my MPV Configuration below).

I watch HDR content at 2x the speed (so 48FPS).

MPV CONFIGURATION: (for anyone interested to test, shaders have to be downloaded separately).

vo=gpu
profile=gpu-hq
fbo-format=rgba16hf
gpu-api=vulkan
vulkan-async-compute
gpu-context=winvk
hwdec=nvdec-copy
spirv-compiler=shaderc
vulkan-queue-count=4

volume-max=100

hdr-compute-peak=yes

video-sync=display

scale=ewa_lanczossharp
cscale=ewa_lanczossharp
dscale=ewa_lanczossharp
dither-depth=auto
correct-downscaling=yes
sigmoid-upscaling=yes

deband=yes
deband-iterations=5
deband-threshold=50
deband-range=16
deband-grain=48

sub-ass-shaper=complex
sub-font-size=35
sub-scale-by-window=yes
sub-pos=100
sub-align-x=center
sub-align-y=bottom
sub-margin-y=3

glsl-shader="C:\Users\musta\AppData\Roaming\mpv\Shaders\KrigBilateral.glsl"

profile-desc=cond:get('height', 0) < 1440
glsl-shader="C:\Users\musta\AppData\Roaming\mpv\Shaders\FSRCNNX_x2_8-0-4-1.glsl"

Haha

Or even when overclocking sometimes the BIOS resets in the process, and when I go back on Windows, you have to re-enter details (it rarely happened, but it used to when I was overclocking and looking for a stable clock). Edit: just a note here, the BIOS on my MB has two slots, default is F6, and overclocked profile is version F7 of the BIOS, so it's likely that the reset only used to happen when the BIOS switched between the two on-board firmwares.

Or when you do a clean format of Windows 10 upgrades when they come out. In a week or so I will probably be doing a clean install of Windows 10 1903, so I will enter my details again.

So OP, go on your manager and remove all the PC's there, register your current PC. And if after a week or two there are a couple of more re-added, then there's an issue. Otherwise you can remove access to all PC's connected to it, and then just register your current PC.

If your GPU is running fine while gaming and bench-marking, then it's not the GPU. Your CPU is more than powerful enough too.

I have a GTX 1070 and a 4790K @ 4.6Ghz and I run 4K HDR 10-bit content without issue.

Don't turn on HDR on your monitor/TV though, I just let MPV recover HDR colors and it does it very well.

What settings (configuration) are you using for MPV?

I uninstalled MPC a while ago, because it doesn't perform as well as MPV with the right settings anymore. MPV has become the best player for SVP with recent updates.

Haha love it Oh well, I'm just glad everything is back in working order

FIXED: Check edit at the bottom.

Okay, I decided to check MPV configuration file. Cut all the lines, clicked save, started the video and everything worked. Went back, clicked paste, same issue came back. So something changed in the update that's breaking SVP from working with MPV using these settings below, I'm going to try to narrow it down to what's causing the issue:

vo=gpu
profile=gpu-hq
fbo-format=rgba16hf
gpu-api=vulkan
gpu-context=winvk
hwdec=nvdec
spirv-compiler=shaderc

priority=high

scale=ewa_lanczossharp
cscale=ewa_lanczossharp
dscale=ewa_lanczossharp
dither-depth=auto
correct-downscaling=yes
sigmoid-upscaling=yes
deband=yes
deband-iterations=4
deband-threshold=50
deband-range=16
deband-grain=0

vd-lavc-dr=yes
vd-lavc-threads=16

sub-ass-shaper=complex
sub-font-size=35
sub-scale-by-window=yes
sub-pos=100
sub-align-x=center
sub-align-y=bottom
sub-margin-y=3

hdr-compute-peak=yes

glsl-shader="C:\Users\musta\AppData\Roaming\mpv\Shaders\KrigBilateral.glsl"

profile-desc=cond:get('height', 0) < 1440
glsl-shader="C:\Users\musta\AppData\Roaming\mpv\Shaders\FSRCNNX_x2_8-0-4-1.glsl"

----------------------------------------------

EDIT:

Changed hwdec=nvdec to hwdec=nvdec-copy and now it's working. I always used hwdec=nvdec before without issue though, weird.

Thanks

Just tested a few videos, but SVP is not kicking in when playing videos anymore with MPV.

Tested MPC and it works, but it's like SVP is not detecting MPV is running. I'm sure the fix is simple.