Transparent overlay on VapourSynth?

[SilSinn9801]

Originally Posted by poisondeathray

vfx[1] should be black and white

Yes, it was binary black and white (monochrome).

Originally Posted by poisondeathray

If you're loading as an array of RGB + alpha, you need to specify if it's using [0] or [1] . Those newer versions require alpha = True to load the alpha. So just omit that for the RGB background

If you're loading both (it will be a "dummy" alpha) . Since you want the RGB background, it should be [0]

rawlogoframe = core.std.AssumeFPS(rawlogo[0],fpsnum=60000,fpsden=1001)

I now get a new, different error when applying HolyWu’s Overlay:

Avisynth open failure:
Python exception: List index out of bounds

Traceback (most recent call last):
File "src\cython\vapoursynth.pyx", line 1927, in vapoursynth.vpy_evaluateScript
File "src\cython\vapoursynth.pyx", line 1928, in vapoursynth.vpy_evaluateScript
File "C:\(fakepath)\Script.vpy", line 134, in <module>
finallogo = haf.Overlay(logo,vfx[0],mask=vfx[1])
File "src\cython\vapoursynth.pyx", line 1402, in vapoursynth.VideoNode.__getitem__
IndexError: List index out of bounds

[poisondeathray]

Originally Posted by SilSinn9801

I now get a new, different error when applying HolyWu’s Overlay:

Avisynth open failure:
Python exception: List index out of bounds

Traceback (most recent call last):
File "src\cython\vapoursynth.pyx", line 1927, in vapoursynth.vpy_evaluateScript
File "src\cython\vapoursynth.pyx", line 1928, in vapoursynth.vpy_evaluateScript
File "C:\(fakepath)\Script.vpy", line 134, in <module>
finallogo = haf.Overlay(logo,vfx[0],mask=vfx[1])
File "src\cython\vapoursynth.pyx", line 1402, in vapoursynth.VideoNode.__getitem__
IndexError: List index out of bounds

If you're loading the alpha for "logo" you need to specify [0] or [1] . You want [0] for RGB

finallogo = haf.Overlay(logo[0],vfx[0],mask=vfx[1])

[SilSinn9801]

Originally Posted by poisondeathray

If you're loading the alpha for "logo" you need to specify [0] or [1] . You want [0] for RGB

finallogo = haf.Overlay(logo[0],vfx[0],mask=vfx[1])

I am not using alpha for logo.

[poisondeathray]

Originally Posted by SilSinn9801

I am not using alpha for logo.

Then don't load it. Use alpha=False or omit it for ffms2 for the logo

Use alpha=True for vfx ffms2 loading

[SilSinn9801]

Originally Posted by poisondeathray

Then don't load it. Use alpha=False or omit it for ffms2 for the logo

Use alpha=True for vfx ffms2 loading

Even with alpha=False for logo and alpha=True for each vfx image, I get the same error, and I am suspecting why:

Did you see above on my original script that I was repeating each VFX frame by either 2, 3, or 4 (using the * operator) and then concatenating all repeated frames together (with the + operator)? When trying separately vfx00[0].set_output(), vfx01[0].set_output(), vfx02[0].set_output(), … and vfx00[1].set_output(), vfx01[1].set_output(), vfx02[1].set_output(), …, I am not getting repeated frames, but rather single frames at the output. Is there some other way to repeat a frame without using the * operator?

[poisondeathray]

Originally Posted by SilSinn9801

Is there some other way to repeat a frame without using the * operator?

Loop
http://www.vapoursynth.com/doc/functions/loop.html

[SilSinn9801]

Originally Posted by poisondeathray

Loop
http://www.vapoursynth.com/doc/functions/loop.html

Using Loop:

vfx00 = core.std.Loop(vfx00, times=118)

I get error:

Python exception: Loop: argument clip is not of array type but more than one value was supplied

[SilSinn9801]

Apparently, for Loop not to crash, I have to issue the Loop command individually for both [0] and [1]:

vfx00[0] = core.std.Loop(vfx00[0], times=118)
vfx00[1] = core.std.Loop(vfx00[1], times=118)

So my code will get more tedious since I have to deal with 88 different VFX frames.

[poisondeathray]

You have to divide up the RGB, and alpha

eg.

clip = core.ffms2.Source(r'VFX__172.PNG', alpha=True)
clip2rgb = clip[0] * 30
clip2alpha = clip[1] * 30

clip2rgb.set_output()
#clip2alpha.set_output()

[poisondeathray]

Originally Posted by SilSinn9801

So my code will get more tedious since I have to deal with 88 different VFX frames.

I must say that avisynth handles it much better from a user standpoint...

There might be some 'python magic' that can simplify this

[SilSinn9801]

Originally Posted by poisondeathray

I must say that avisynth handles it much better from a user standpoint...

There might be some 'python magic' that can simplify this

Yes, I was originally an avisynth user, but got tired of it being non-Unicode-aware (and tired of having to either rename my sources to ASCII only or move them to ASCII-only filepaths).

[SilSinn9801]

Originally Posted by HolyWu

Since we are in python scripting, you can simply define a helper function for convenience.

def loop_vfx(c, times):
    c[0] = c[0] * times
    c[1] = c[1] * times
    return c

vfx00 = loop_vfx(core.ffms2.Source('VFX__000.png', alpha=True), 118)
vfx01 = loop_vfx(core.ffms2.Source('VFX__118.png', alpha=True), 8)
vfx02 = loop_vfx(core.ffms2.Source('VFX__126.png', alpha=True), 18)

Thanks. And I imagine I would have to do something similar for concatenating the various vfx## clips together with the + operator.

Finally got the result I desired. Thankee for all your support.