Selur's Little Message Board

Hello!

When I use the SelectEvery plugin, it drops the output FPS to something that looks wrong to me. Ex: going from 29.97 to 23.976 gives a resulting 5.994 fps.

Here's the script generated by Hybrid:

Code:
# Imports

import vapoursynth as vs

# getting Vapoursynth core

core = vs.core

# source: '/Users/admin/Desktop/in.mp4'

# current color space: YUV420P8, bit depth: 8, resolution: 656x480, fps: 29.97, color matrix: 470bg, yuv luminance scale: limited, scanorder: progressive

# Loading /Users/admin/Desktop/in.mp4 using LibavSMASHSource

clip = core.lsmas.LibavSMASHSource(source="/Users/admin/Desktop/in.mp4")

# Setting color matrix to 470bg.

clip = core.std.SetFrameProps(clip, _Matrix=5)

clip = clip if not core.text.FrameProps(clip,'_Transfer') else core.std.SetFrameProps(clip, _Transfer=5)

clip = clip if not core.text.FrameProps(clip,'_Primaries') else core.std.SetFrameProps(clip, _Primaries=5)

# Setting color range to TV (limited) range.

clip = core.std.SetFrameProp(clip=clip, prop="_ColorRange", intval=1)

# making sure frame rate is set to 29.970

clip = core.std.AssumeFPS(clip=clip, fpsnum=30000, fpsden=1001)

# adjusting frame with SelectEvery

clip = core.std.SelectEvery(clip=clip, cycle=5, offsets=[0,1,2,3])

clip = core.std.AssumeFPS(clip=clip,fpsnum=2997, fpsden=500)# new fps: 5.994

# adjusting output color from: YUV420P8 to YUV422P10 for ProResModel

clip = core.resize.Bicubic(clip=clip, format=vs.YUV422P10, range_s="limited")

# Output

clip.set_output()

The problem seems to be with the line:

Code:
clip = core.std.AssumeFPS(clip=clip,fpsnum=2997, fpsden=500)# new fps: 5.994

If I change it to fpsnum=24000 and fpsden=1001, I get a good 23.976 fps output.

I'm on mac (latest version 2022.03.20.1).

Is this a bug or do I miss something?

Thanks!!

iirc. that's a bug I fixed. Smile

Will send you a link to a dev version I compiled for mac a while ago which should contain the fix.

Cu Selur

Ahh,... I just saw the problem when I tried to reproduce the issue. Smile

I enter:

Code:
0 1 2 3

as offsets and get:

Code:
# making sure frame rate is set to 29.970

clip = core.std.AssumeFPS(clip=clip, fpsnum=30000, fpsden=1001)

# adjusting frame with SelectEvery

clip = core.std.SelectEvery(clip=clip, cycle=5, offsets=[0, 1, 2, 3])

clip = core.std.AssumeFPS(clip=clip,fpsnum=24000, fpsden=1001)# new fps: 23.976

but, you entered

Code:
0,1,2,3

which is interpreted as one number.

Quote:Offsets:
Offsets used by SelectEvery, allowed values are between 0 and 'cycle -1'.
The offsets should be separated by spaces.

source: the tool-tip. Smile

Cu Selur

annael

Selur

Selur