Vapoursynth

[trip_let]

Originally Posted by Selur

@trip_let: simply add ?black? borders to both the logo and the alpha channel? does that make sense?

Erm, not sure how Overlay works. Never used it.

You may want to use the mask parameter, specifying that you're allowing a change in the part where you're putting the logo (area where the mask is white), and not allowing a change elsewhere (area where the mask is black).

# black clip the size of logo
mask = core.std.BlankClip(logo)
# now change to white
mask = core.std.Invert(mask)
# add black borders to right and bottom of the area (apply logo to upper-left)
mask = core.std.AddBorders(mask, right=clip.width-logo.width, bottom=clip.height-logo.height)

warning: didn't test; am not a regular user of these functions and not that familiar with VS


Or I guess if you max out the alpha in the logo for the garbage/padding, it would be 100% transparent and not change the picture there. That's probably easier, actually.

[Selur]

@HolyWu: as I understood it alphy=True returns two clips, don't I need to take both?

[logo, alpha] = core.imwrif.Read(filename="F:/TestClips&Co/background.png", alpha=True)

-> okay forget that just understood the [0] and [1] part

tried:

# Imports
import sys
import os
import vapoursynth as vs
core = vs.get_core()
# Import Scripts Folder
scriptPath = 'G:/Hybrid/vsscripts'
sys.path.append(os.path.abspath(scriptPath))
# Import havsfunc
import havsfunc as havsfunc
# Loading Plugins
core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/SourceFilter/Imagemagick/libimwri.dll")
core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/SourceFilter/LSmashSource/vslsmashsource.dll")
core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/Support/fmtconv.dll")
# Loading F:\TestClips&Co\test.avi using LWLibavSource
clip = core.lsmas.LWLibavSource(source="F:/TestClips&Co/test.avi", cache=0)
# adding 'F:\TestClips&Co\background.png' using Overlay
[logo, alpha] = core.imwrif.Read(filename="F:/TestClips&Co/background.png", alpha=True)
logo = core.resize.Bicubic(clip=logo, format=clip.format.id, matrix_s="709")
alpha = core.fmtc.bitdepth(clip=alpha, bits=clip.format.bits_per_sample)
clip=havsfunc.Overlay(clipa=clip, clipb=logo, mask=alpha)
# Output
clip.set_output()

but that still ignored the alpha (background all black)

[Selur]

]Here's the png I used.

Cu Selur

[Selur]

Thanks! That works!
Positioning and only showing the logo for a short time works fine too:

# Imports
import sys
import os
import vapoursynth as vs
core = vs.get_core()
# Import Scripts Folder
scriptPath = 'G:/Hybrid/vsscripts'
sys.path.append(os.path.abspath(scriptPath))
# Import havsfunc
import havsfunc as havsfunc
# Loading Plugins
core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/SourceFilter/Imagemagick/libimwri.dll")
core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/Support/fmtconv.dll")
core.std.LoadPlugin(path="G:/Hybrid/Vapoursynth/vapoursynth64/plugins/SourceFilter/LSmashSource/vslsmashsource.dll")
# Loading F:\TestClips&Co\test.avi using LWLibavSource
clip = core.lsmas.LWLibavSource(source="F:/TestClips&Co/test.avi", cache=0)
# adding 'F:\TestClips&Co\background.png' using Overlay
[logo, alpha] = core.imwrif.Read(filename="F:/TestClips&Co/background.png", alpha=True)
logo = core.resize.Bicubic(clip=logo, format=clip.format.id, matrix_s="709")
alpha = core.fmtc.bitdepth(clip=alpha, bits=clip.format.bits_per_sample, fulld=True).std.Invert()
beforeLogo = core.std.Trim(clip,last=49)
selection = core.std.Trim(clip,first=50,last=100)
afterLogo = core.std.Trim(clip,first=101)
selection = havsfunc.Overlay(clipa=selection, clipb=logo, mask=alpha, x=20, y=40)
clip = beforeLogo + selection + afterLogo
# Output
clip.set_output()

-> Next question: How to fade the logo in and out over x frames?

Cu Selur

[splinter98]

Originally Posted by Selur

-> Next question: How to fade the logo in and out over x frames?

Try my crossfade function from: http://forum.doom9.org/showthread.ph...34#post1755234

[Selur]

Will do Thanks!

[aculnaig]

Can't build vapoursynth ( gcc (GCC) 6.2.1 20160830 )

VapourSynth ( latest git )

git describe --tags
R33.1-18-gf65402b

zimg ( latest git )

git describe --tags
release-2.2.1-13-g1855661

Errors

src/core/vsresize.cpp:33:2: error: #error zAPI v2 or greater required
 #error zAPI v2 or greater required
  ^~~~~


src/core/vsresize.cpp:121:23: error: ‘ZIMG_TRANSFER_ST2084’ was not declared in this scope
         { "st2084",   ZIMG_TRANSFER_ST2084 },
                       ^~~~~~~~~~~~~~~~~~~~
src/core/vsresize.cpp:122:23: error: ‘ZIMG_TRANSFER_ARIB_B67’ was not declared in this scope
         { "std-b67",  ZIMG_TRANSFER_ARIB_B67 },
                       ^~~~~~~~~~~~~~~~~~~~~~
src/core/vsresize.cpp:123:5: error: no matching function for call to ‘std::unordered_map<std::__cxx11::basic_string<char>, zimg_transfer_characteristics_e>::unordered_map(<brace-enclosed initializer list>)’
     };

src/core/vsresize.cpp:760:26: error: ‘struct vszimgxx::zfilter_graph_builder_params’ has no member named ‘nominal_peak_luminance’
                 m_params.nominal_peak_luminance = propGetScalarDef<double>(in, "nominal_luminance", NAN, vsapi);

[Myrsloik]

You need to use the hdr branch of zimg to build it.

[aculnaig]

Thanks, It worked.

[Sm3n]

Hello,

can you tell me if my guesses are true. Can I compile zimg on debian?
if yes why can't I compile it? Not sure I actualy can.
System: Debian wheezy x64

Here is my error code: http://paste2.org/tgXKhezc

cheers in advance

[Myrsloik]

Originally Posted by Sm3n

Hello,

can you tell me if my guesses are true. Can I compile zimg on debian?
if yes why can't I compile it? Not sure I actualy can.
System: Debian wheezy x64

Here is my error code: http://paste2.org/tgXKhezc

cheers in advance

You compiler is too old.

[Sm3n]

OK. And do you think I can upgrade it? I'm not very confortable with debian - that's why I ask but I can manage it eventualy.
I'm trying to look for it right now...

[Are_]

Originally Posted by Sm3n

OK. And do you think I can upgrade it? I'm not very confortable with debian - that's why I ask but I can manage it eventualy.
I'm trying to look for it right now...

https://linuxconfig.org/how-to-upgra...stable-release

[Sm3n]

Originally Posted by Are_

https://linuxconfig.org/how-to-upgra...stable-release

Thx a lot.

[Selur]

I'm trying to get Vapoursynth working on mac, using:

# Imports
import vapoursynth as vs
core = vs.get_core()
# Loading Plugins
core.std.LoadPlugin(path="/Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib")
# Loading /Users/selur/Desktop/公演后感言.mp4 using FFMS2
clip = core.ffms2.Source(source="/Users/selur/Desktop/公演后感言.mp4",cachefile="/Users/selur/Desktop/temp/mp4_d59244d4d4de113a5823257ae88125fc_16807.ffindex")
# Output
clip.set_output()

I get:

Failed to evaluate the script:
Python exception: Failed to load /Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib. Error given: dlopen(/Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib, 1): image not found
Traceback (most recent call last):
  File "src/cython/vapoursynth.pyx", line 1491, in vapoursynth.vpy_evaluateScript (src/cython/vapoursynth.c:26897)
  File "/Users/selur/Desktop/temp/tempPreviewVapoursynthFile21_04_39_802.vpy", line 5, in <module>
    core.std.LoadPlugin(path="/Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib")
  File "src/cython/vapoursynth.pyx", line 1383, in vapoursynth.Function.__call__ (src/cython/vapoursynth.c:25204)
vapoursynth.Error: Failed to load /Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib. Error given: dlopen(/Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib, 1): image not found

Do I need to load the filter in another way ?
(I'm on mac osx, vapoursynth was installed using homebrew, ffms2 was separately compiled and copied to '/Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib' )

[kolak]

Use L-SMASH Source- I found it more reliable than ffms2, which is far from being perfect.

[Selur]

haven't figured out to compile l-smash on mac and I'm not sure if I the loading script is correct,...

[jackoneill]

Originally Posted by Selur

Do I need to load the filter in another way ?
(I'm on mac osx, vapoursynth was installed using homebrew, ffms2 was separately compiled and copied to '/Users/selur/build-Hybrid-Desktop-Release/Hybrid.app/Contents/MacOS/vsfilters/SourceFilter/FFMS2/ffms2.dylib' )

Are you sure you have the right file name? Are you sure that file is a library?

[kolak]

Originally Posted by Selur

haven't figured out to compile l-smash on mac and I'm not sure if I the loading script is correct,...

Vapoursynth OSX installer has it. You can find post about it in vs section.

[Selur]

Are you sure you have the right file name? Are you sure that file is a library?

Ahhh it was a typo. Now I get a 'Video codec not found', but that is probably due to some mistake during the ffms2 compilation. (forgot the ffmpeg libs) Thanks totally didn't see the typo yesterday.

Vapoursynth OSX installer has it. You can find post about it in vs section.

Problem with that is that it interferes with the vapoursynth version I installed through homebrew to be able to compile my own vsedit version (contains some limited ipc capabilities).
+ There doesn't seem to be a way to uninstall it and it's r33 not r33.1