Port Cube
Port Cube
Finding #5: Frame properties
When using std-b67, the _Transfer frame property is 18. When using st2084, the _Transfer frame property is 16. All other properties are the same.
So we will focus initially on the last stage and seek out the reason for the discrepancy. I'll have to bring up avsresize in the debugger. That will take a little time to get going.
When using std-b67, the _Transfer frame property is 18. When using st2084, the _Transfer frame property is 16. All other properties are the same.
So we will focus initially on the last stage and seek out the reason for the discrepancy. I'll have to bring up avsresize in the debugger. That will take a little time to get going.
Port Cube
@Guest 2
Just for fun, add this parameter to all z calls and see if things go faster.
approximate_gamma=true
And modify avsresize to support CUDASynth protocol. It's not difficult.
Just for fun, add this parameter to all z calls and see if things go faster.
approximate_gamma=true
And modify avsresize to support CUDASynth protocol. It's not difficult.
- Bullwinkle
- Posts: 344
- Joined: Thu Sep 05, 2019 6:37 pm
Port Cube
Rocky is ill and may not get back to coding for some days.
Any luck with the approximate_gamma hack?
Any luck with the approximate_gamma hack?
Port Cube
My best wishes.
- Bullwinkle
- Posts: 344
- Joined: Thu Sep 05, 2019 6:37 pm
Port Cube
Thank you, big t.
BTW, I slipstreamed a change to DGCube to map negative values to 0. People should not create cubes with negative values but I'll be nice and try to help them. Redownload to get the change.
Any luck with the approximate_gamma hack?
BTW, I slipstreamed a change to DGCube to map negative values to 0. People should not create cubes with negative values but I'll be nice and try to help them. Redownload to get the change.
Any luck with the approximate_gamma hack?
Port Cube
I was about sending you the url of the message
I need to empty the encoding queue before trying. Will do ASAP.
Port Cube
I had some time to test approx gamma.
UHD: Thor – Love and thunder, mixed frames (1722 frames in total)
Script:
Replacing the cube part with
I get
Not so much to risk issues with gamma approx.
UHD: Thor – Love and thunder, mixed frames (1722 frames in total)
Script:
Code: Select all
SetMemoryMax()
LoadPlugin("D:\Eseguibili\Media\DGDecNV\DGDecodeNV.dll")
LoadPlugin("D:\Eseguibili\Media\DGCube\DGCube.dll")
DGSource("F:\In\1_58 Thor Love and thunder\thor.dgi",ct=280,cb=280,cl=0,cr=0)
propClearAll()
z_ConvertFormat(pixel_type="RGBP16", colorspace_op="2020:st2084:2020:limited=>rgb:st2084:2020:full", resample_filter_uv="spline64", dither_type="error_diffusion")
DGCube("D:\Programmi\Media\AviSynth+\cube\1a_PQ1000_HLG_mode-nar_in-nar_out-nar_nocomp.cube", in="full", lut="full", out="full")
z_ConvertFormat(pixel_type="YUV420P10", colorspace_op="rgb:std-b67:2020:full=>2020:std-b67:2020:limited", resample_filter_uv="spline64", dither_type="error_diffusion")
fmtc_bitdepth (bits=10, dmode=8)
Prefetch(8)
Code: Select all
AVSMeter64.exe "Thor 4K HLG BBC ext.avs"
AVSMeter 3.0.8.0 (x64), (c) Groucho2004, 2012-2021
AviSynth+ 3.7.3 (r3689, 3.7, x86_64) (3.7.3.0)
Number of frames: 1722
Length (hh:mm:ss.ms): 00:01:11.822
Frame width: 3840
Frame height: 1600
Framerate: 23.976 (24000/1001)
Colorspace: YUV420P10
Frames processed: 1722 (0 - 1721)
FPS (min | max | average): 0.839 | 322580 | 16.01
Process memory usage (max): 2840 MiB
Thread count: 27
CPU usage (average): 71.5%
Time (elapsed): 00:01:47.571
Code: Select all
z_ConvertFormat(pixel_type="RGBP16", colorspace_op="2020:st2084:2020:limited=>rgb:st2084:2020:full", resample_filter_uv="spline64", dither_type="error_diffusion",approximate_gamma=true)
DGCube("D:\Programmi\Media\AviSynth+\cube\1a_PQ1000_HLG_mode-nar_in-nar_out-nar_nocomp.cube", in="full", lut="full", out="full")
z_ConvertFormat(pixel_type="YUV420P10", colorspace_op="rgb:std-b67:2020:full=>2020:std-b67:2020:limited", resample_filter_uv="spline64", dither_type="error_diffusion",approximate_gamma=true)
Code: Select all
Frames processed: 1722 (0 - 1721)
FPS (min | max | average): 0.606 | 344828 | 16.62
Process memory usage (max): 2697 MiB
Thread count: 27
CPU usage (average): 70.5%
Time (elapsed): 00:01:43.608
Port Cube
OK, nowhere near the speedup hoped for. Thank you for your testing.
Port Cube
Completed my last coaching cert today and Sherman is taking over the radios. I'll try to make sense of z source code to extract the matrices they are using for comparison to mine.
Port Cube
Ooh, I think I found the place in the code where the coefficients are generated. Let's see if I can hit it in the debugger.
Port Cube
I don't follow that because the HLG is part of the 3D LUT. I've shown the discrepancies for the two operations before and after the 3D LUT application, i.e., the YUV -> RGB and RGB -> YUV conversions.
Port Cube
I was reading https://github.com/WolframRhodium/VapourSynth-BM3DCUDA and I noticed:
Perhaps you can find some trick in the source to increase transfer speed.
P.S: I really would like to see its AVS+ native by your talented hands.
Code: Select all
fast:
Multi-threaded copy between CPU and GPU at the expense of 4x memory consumption.
Default True.
P.S: I really would like to see its AVS+ native by your talented hands.
Port Cube
And now, it's time for a message from our sponsor.