Animate Overlay

[johnny27depp]

Hi there

I would like to block off a section of rolling credits in a video. How would I animate my overlay to go from y=0 to y=-1080 in a period of 204 frames? This is my code so far:

Credits=ffvideosource("E:\JAP.mkv").Trim(120491,120695)
mask=BlankClip(Credits, length=787, color=$347A34)

video=overlay(Credits,mask,x=0,y=0,opacity=1) #So I would like it to start here
video=overlay(Credits,mask,x=0,y=-1080,opacity=1) #And animate until here

I don't know how to fill those arguments in the Animate function.

I would appreciate any assistance, thanks!

[jagabo]

The easiest way to do this is to create your own function with only one variable and animate that:

function MyOverlay(clip v, clip o, int ypos)
{
  Overlay(v, o, x=0, y=ypos, opacity=1)
}

Credits=ffvideosource("E:\JAP.mkv").Trim(120491,120695)
mask=BlankClip(Credits, length=787, color=$347A34)
Animate(0,204, "MyOverlay", Credits,mask,0,  Credits,mask,-1080)

[Selur]

In case it's just rolling text, creating ass-Subtitles and adding them through a subtitle filter might also be an easy solution,..

[johnny27depp]

Thanks I didn't think of creating a custom function. This works well, putting overlay directly in Animate was giving me problems.

@Selur It's only a section I wanted covered after which I want it to continue as per normal. Thanks for the suggestion.

[johnny27depp]

What do you use to load ssa files?

I've tried this:

JAP=ffvideosource("E:\JAP.mkv")
JAP=TextSub(JAP,"C:\VirtualDub2_43602\JAP.ssa")
JAP

The output is weird though, it looks all interlaced, 720x576 and the text covers most of the frame. It's as if the filter is ignoring the video format details.

[Selur]

AssRender or one of the VSFilter versions (https://code.google.com/archive/p/vsfiltermod/, https://www.videohelp.com/software/VSFilter-DirectVobSub, http://www.codeforge.com/article/338839) should all work (depending on the sbutitle file one or the other might work better)

[johnny27depp]

I tried VSFilterMod, so there is a bit of an improvement. The video is the correct frame size, but the text is still covering most of the frame even though I specified size, font and position when converting to ssa.

AssRender seems good, do you know where I can get a compiled file for AviSynth+? Or if not then anything that'll work for AviSynth+?

[poisondeathray]

Edit the sub in aegisub or a text editor . There should be a PlayResX, PlayResY entry

[Selur]

The normal 32bit Avisynth ASSRenderer should work fine with 32bit Avisynth+, I don't think there was a port with extended color space support if that is what you are looking for.
Output of curiosity: Why are you using ssa and not ass? (most folks use ass)

Cu Selur

[johnny27depp]

Edit the sub in aegisub or a text editor . There should be a PlayResX, PlayResY entry

The .ssa file didn't have those entries.

The normal 32bit Avisynth ASSRenderer should work fine with 32bit Avisynth+, I don't think there was a port with extended color space support if that is what you are looking for.
Output of curiosity: Why are you using ssa and not ass? (most folks use ass)

Cu Selur

I opened the original .srt file in aegisub and saved an .ass file. How do I import AssRender into AviSynth+? The site has it in C code.

[Selur]

https://forum.doom9.org/showthread.php?t=148926 links to compiled version, for example: http://srsfckn.biz/assrender/assrender-0.25.7z

[johnny27depp]

Okay so I managed to get this code running:

JAP=ffvideosource("E:\JAP.mkv")
AssRender(JAP,"E:\JAP.ass", hinting=2, charset="UTF-8")

The only snag is, according to aegisub, the style is all set and everything, but when I view the output of this script, it's in a different font as if some default setting or something even though I used hinting.

[Selur]

Possible cause:

NOTE: the included fontconfig directory MUST be in the same folder as the .dll, or it'll crash!
Note 2: loading something the first time can be pretty slow, especially if you have a lot of fonts installed, because fontconfig needs to cache all your system fonts.

source: https://forum.doom9.org/showthread.php?t=148926
Also since you are not using

string fontdir:
    Additional font directory.
    Useful if you are lazy but want to keep your system fonts clean.

the fonts you use are in the usual system font folders, otherwise the fonts won't be found and alternatives of the same font family will be used.

Cu Selur

[johnny27depp]

Okay it's all good now. Thanks everyone, I really appreciate it!

[johnny27depp]

Hi there everyone

I was wondering if there is a filter or something that could output a trimmed subtitle file. Let's say I started like this:

JAP=ffvideosource("E:\JAP.mkv")
JAP=TextSub(JAP,"C:\VirtualDub2_43602\JAP.ssa")

and then I make a few edits

JAP.Trim(A, B)+JAP.Trim(C,D)

and then output an edited subtitle file that'll go with this footage. How could I do this in AviSynth?

Thanks for all the help

[hello_hello]

You can probably use MKVToolNixGUI for something like that, although you'll be limited to cutting on keyframes.

Open the MKV, add the subtitles file, use MKVToolNixGUI to cut out the section you don't want (split by parts based on frame numbers A-B,C-D), and finally extract the subtitles from the output MKV with gMKVExtractGUI or MKVCleaver.

I think that will work, otherwise you'd probably have to create the edited video, and manually edit the subtitles to match with something like SubtitleEdit.

[johnny27depp]

Okay cool, thanks for the recommendations!