Vapoursynth

[Myrsloik]

R54 released. Same list of changes as RC1 but it's been recompiled with a newer visual studio.

[Dann0245]

On Ubuntu, how can I get vapoursynth plugins?

Or I have to compile all plugins one by one, compiling stuff is difficult for me.

[quietvoid]

Originally Posted by Dann0245

On Ubuntu, how can I get vapoursynth plugins?

Or I have to compile all plugins one by one, compiling stuff is difficult for me.

Maybe this could work? https://github.com/makedeb/makedeb
The AUR has a lot of plugin packages: https://aur.archlinux.org/packages/?...ursynth-plugin

[Selur]

Using:

# Imports
import vapoursynth as vs
# getting Vapoursynth core
core = vs.core
# Loading Plugins
core.std.LoadPlugin(path="I:/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/vslsmashsource.dll")
# source: 'G:\TestClips&Co\files\ProRes\Test Patterns Resolve 4444 12-bit.mov'
# current color space: YUV444P16, bit depth: 12, resolution: 720x576, fps: 25, color matrix: 709, yuv luminance scale: limited, scanorder: progressive
# Loading G:\TestClips&Co\files\ProRes\Test Patterns Resolve 4444 12-bit.mov using LibavSMASHSource
clip = core.lsmas.LibavSMASHSource(source="G:/TestClips&Co/files/ProRes/Test Patterns Resolve 4444 12-bit.mov")
# making sure input color matrix is set as 709
clip = core.resize.Point(clip, matrix_in_s="709",range_s="limited")
# making sure frame rate is set to 25
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
# Setting color range to TV (limited) range.
clip = core.std.SetFrameProp(clip=clip, prop="_ColorRange", intval=1)
# adjusting color space from YUV444P16 to RGB48 for vsLevels
clip = core.resize.Bicubic(clip=clip, format=vs.RGB48, matrix_in_s="709", range_s="limited")
# Color Adjustment
clip = core.std.Levels(clip=clip, min_in=256, max_in=3760, min_out=256, max_out=3760)

# set output frame rate to 25.000fps
clip = core.std.AssumeFPS(clip=clip, fpsnum=25, fpsden=1)
# Output
clip.set_output()

I get a black output.
without the:

# Color Adjustment
clip = core.std.Levels(clip=clip, min_in=256, max_in=3760, min_out=256, max_out=3760)

Same when using:

# Color Adjustment
clip = core.std.Limiter(clip=clip, min=0, max=4080)

Is this a bug/limitation or am I missing something?


Shared the input in my GoogleDrive.
Happens with both Vapoursynth R53 and R54.

Cu Selur

[poisondeathray]

Originally Posted by Selur

# adjusting color space from YUV444P16 to RGB48 for vsLevels
clip = core.resize.Bicubic(clip=clip, format=vs.RGB48, matrix_in_s="709", range_s="limited")
# Color Adjustment
clip = core.std.Levels(clip=clip, min_in=256, max_in=3760, min_out=256, max_out=3760)


Is this a bug/limitation or am I missing something?

It's the expected result for RGB48 (16bit goes from 0 to 65535)

[StainlessS]

Selur, I think your numbers are for 12 bit.

[shph]

Few more interesting test results:

If i render with Hybrid to ProRes 444 MKV (instead of original MOV container) and put that rendered MKV file back to Hybrid - i got black screen preview when apply Levels even if UseRGB is unchecked.

If i use ProRes444 file, apply Levels with any settings and render to ProRes 444 - i got MOV file that is simply black.

[Selur]

It's the expected result for RGB48 (16bit goes from 0 to 65535)

+

Selur, I think your numbers are for 12 bit.

DOH,... since the input was 12bit I forgot to properly scale!

Thanks totally overlooked that.

Cu Selur

[ChaosKing]

In VS get_plugins() can show some basic information about plugins like name, functions, identifier etc. But it only works for loaded dlls.
Is it somehow possible to get the same (or almost same) information without (successfully) loading a plugin first?
I want to automate things for vsdb.top + more show some infos in vsrepogui.


Most important would be identifier + all function names

[Myrsloik]

Originally Posted by ChaosKing

In VS get_plugins() can show some basic information about plugins like name, functions, identifier etc. But it only works for loaded dlls.
Is it somehow possible to get the same (or almost same) information without (successfully) loading a plugin first?
I want to automate things for vsdb.top + more show some infos in vsrepogui.


Most important would be identifier + all function names

Sure, just look at the plugin loading code. See https://github.com/vapoursynth/vapoursynth/blob/master/src/core/vscore.cpp#L1517 for how it's done. You can more or less copy the code and simply supply your own configplugin and registerfunction callbacks.

[ChaosKing]

Thx. Will try to make a small cli app.

If I understand it correctly trying to read a plugin which uses cuda for example would still fail with LoadLibraryEx , wouldn't it? ( I don't have a cuda card in this case)

[Myrsloik]

Originally Posted by ChaosKing

Thx. Will try to make a small cli app.

If I understand it correctly trying to read a plugin which uses cuda for example would still fail with LoadLibraryEx , wouldn't it? ( I don't have a cuda card in this case)

Depends on how it was written. If the cuda libraries are either dynamically loaded (LoadLibrary) or delay loaded it'd work. If it's a static import it wouldn't. Note that in this case I think the check could mostly be considered to be whether or not the cuda libraries exist so you could borrow them from somewhere even if you, correctly, avoided nvidia.

[poisondeathray]

Originally Posted by Selur

# GLSL filter: adaptive-sharpen.glsl
# clip = core.placebo.Shader

Okay, that got solved, only master contained the shader_s-path not the current (1.1.0) release,..

Selur, were you able to get adaptive-sharpen.glsl working with placebo.Shader ? Just specifying shader=r'PATH\adaptive-sharpen.glsl' ?

It returns image for me, but no difference in image

I'm using this version of adaptive-sharpen.glsl
https://gist.github.com/igv/8a77e4eb...bb94c1c50c317e

I tried linearizing input first, then linearize=True, no difference

(I'm trying to compare CPU version in avisynth port that Dogway put up - that version works)

[BabaG]

installation question. trying to install on kubuntu 20.04 and getting an error that:

No package 'python-3.8' found

yet, when i query for a python version, i get this:

Python 3.8.10

i know almost nothing about installing from source or github or any of it so i'm not surprized at the problems. got past a missing 'zimg' and managed to get that to be found during ./configure but don't know what to do about this now.

thanks for any help,
babag

[Myrsloik]

Originally Posted by BabaG

installation question. trying to install on kubuntu 20.04 and getting an error that:

No package 'python-3.8' found

yet, when i query for a python version, i get this:

Python 3.8.10

i know almost nothing about installing from source or github or any of it so i'm not surprized at the problems. got past a missing 'zimg' and managed to get that to be found during ./configure but don't know what to do about this now.

thanks for any help,
babag

Usually it means you need something like the python-3.8-dev package or similar.

[BabaG]

edit:
ok. got past that one. continuing to look for things it's not finding.
end edit

thanks! i'll look into that. just figured out i should probably post more info on the error so here it is:

checking for python platform... linux
checking for python script directory... ${prefix}/lib/python3.8/site-packages
checking for python extension module directory... ${exec_prefix}/lib/python3.8/site-packages
checking for PYTHON3... no
checking for PYTHON3... no
configure: error: Package requirements (python-3.8) were not met:

No package 'python-3.8' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables PYTHON3_CFLAGS
and PYTHON3_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

[l33tmeatwad]

This should do it:

sudo apt install python3-dev python3-pip cython3

[BabaG]

i'm getting two errors as described here:

http://www.vapoursynth.com/doc/installation.html

first is:

vspipe: error while loading shared libraries: libvapoursynth-script.so.0: cannot open shared object file: No such file or directory

in response to the above error, i see this in the documentation but am not sure what to do with it (type it into my cli? put it in a config file someplace?

LD_LIBRARY_PATH=/usr/local/lib vspipe --version

when i just put it in the cli, i get this:

Failed to initialize VapourSynth environment

i also see this in the docs but, again, don't know what to do with it:

PYTHONPATH=/usr/local/lib/python3.8/site-packages vspipe --version

again, when i put it into my cli, i get:

vspipe: error while loading shared libraries: libvapoursynth-script.so.0: cannot open shared object file: No such file or directory

i do feel like i'm getting close. this is just the kind of thing i never do.

thanks,
babag

[l33tmeatwad]

Debian based platforms have a few quirks that are easily avoided with a few tricks that can be found in this walkthrough.

[BabaG]

thanks! i'll look at that.

babag