Add image overlay on video FFmpeg

Question

I have a video, test.mp4, and an image, test.png.

test.png is a black image with a transparent \"hole\" in the center.

Answer 1

I used this on android and its working fine :-

String[] cmd = new String[]{ "-i", video.mp4, "-i", image.png, "-filter_complex", "overlay=0:main_h-overlay_h", outputFile.getPath()};