In this video, I turn a series of images from my GoPro into a time-lapse video. This includes cropping and scaling the images to convert them from 4:3 to 16:9.
Create Time-lapse with Multiple Folders of Images
~/Downloads/ffmpeg -framerate 30 -pattern_type glob -i '*/*.JPG' -vf crop=in_w:in_w*9/16,scale=1920:1080 -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4
Create Time-lapse with Single Folders of Images
~/Downloads/ffmpeg -framerate 30 -pattern_type glob -i '*.JPG' -vf crop=in_w:in_w*9/16,scale=1920:1080 -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4
Download FFmpeg here: https://ffmpeg.org/download.html
The Unarchiver (Mac) for unzipping FFmpeg download: https://itunes.apple.com/us/app/the-unarchiver/id425424353?mt=12