How do I zoom out and move picture with avisynth

[xicudiz]

I have 1 png picture (transparent). I want add this picture (keep transparent) to my video using avisynth.
I want zoom picture from exam 100% to 50% in frame 300 to 400, and want to move this picture from x1,y1 to x2,y2 in frame 300 to 400.
So anyone please tell me script to zoom and move picture
Thank you so much

[El Heggunte]

http://avisynth.org.ru/docs/english/corefilters/animate.htm

[xicudiz]

http://avisynth.org.ru/docs/english/corefilters/animate.htm

Thanks for reply, but i want exactly zoom and move a png picture, not zoom and move video. Does your link did it?

[jagabo]

Use ImageSource() to convert your image to a video.

[xicudiz]

Use ImageSource() to convert your image to a video.

if convert image to video, is it still transparent?

[SLK001]

if convert image to video, is it still transparent?

You'll have to use masks and overlays, but yes, it can still be transparent.

[Gavino]

If the image is RGB32 with an alpha channel, use ImageSource(..., pixel_type="RGB32").
This will preserve the alpha (transparency) channel, and you can use the Layer() command to place it on top of another clip. You can also extract the alpha layer with the ShowAlpha() command to use as a mask with Overlay(). (Layer does not support YV12 for the underlying clip, but Overlay does.)