Add an image as frame of video using ffmpeg
Basic syntax is

ffmpeg -i 20190224_081118.mp4 -framerate 30 -i frame.png -filter_complex "[0]pad=1920:1080:576:0[vid];[vid][1]overlay" -c:a copy -movflags +faststart out.mp4

This pads the video to the size of the frame image, and then overlays the frame on top. You may need to adjust the horizontal placement of the video by adjusting the x value ib the pad filter, currently 576.