Video + Screen recording combined

README.md

Recording simultaneously Screen + Camera

Set-up

• macOS (tested with macOS Monterey 12.3)
• QuickTime Player (tested with 10.5)
• ffmpeg (tested with 5.1.1)

Recording

Run 2 recordings in parallel.

In Quicktime

• Quicktime > File > New Video Recording
• Quicktime > File > New Screen Recording
• Stop both when over
• Save the 2 files as .mov files

Stitching together

ffmpeg command

ffmpeg -i file1.mov -i file2.mov -filter_complex "[0]scale=iw/4:ih/4 [pip]; [1][pip] overlay=main_w-overlay_w-10:10" -profile:v main -level 3.1 -vcodec h264 -acodec mp3 output.mp4

params

Sound track

Only the camera recording should come with a sound track.

Picture in Picture & Scale

-filter_complex "[0]scale=iw/4:ih/4 [pip]; [1][pip] overlay=main_w-overlay_w-10:10" -profile:v main -level 3.1 -vcodec h264 -acodec mp3 output.mp4

Says that file #0 (first arg) should be used as pip, at 25% its original size

PiP is positioned in the top right, as is defined by overlay=main_w-overlay_w-10:10 Alternatives:

• Bottom left : overlay=main_w-overlay_w-10-10:main_h-overlay_h-10
• Top left: overlay=10:10
• Bottom right:overlay=main_w-overlay_w-10-10:main_h-overlay_h-10