Ffmpeg overlay size

Question

I have the following ffmpeg command which places an overlay image on top of the video. After ffmpeg encoding is completed, the overlay image appears too large, larger than the actual size. How to manage width and height dimensions for an overlay image.

ffmpeg -i 1.wmv -s 640x360 -f mp4 -b 800k -acodec libfaac -ab 64k -vf "movie=0:png:dollar.png [wm];[in][wm] overlay=0:0:1 [out]" out.mp4 

Answer 1

Try adding a filter with the sentence scale=width:height as follows:

 ffmpeg -i 1.wmv -s 640x360 -f mp4 -b 800k -acodec libfaac -ab 64k -vf "movie=0:png:dollar.png, scale=120:120 [wm];[in][wm] overlay=0:0:1 [out]" out.mp4 

Answer 2

Try it, it worked for me: ffmpeg -i basevideo.xxx -vf "movie = overlayvid.xxx [in]; [in] scale = width: height [scale]; [in] [scale] overlay = x: y [out ] "output.xxx