Makefile that merge two videos vertically with FFmpeg.
- youtube-dl
- FFmpeg
- ffprobe
- chiko_src.mov (1920x1080, 28s) -> chiko_trimmed.mov (1370x700, 2s)
- Youtube -> hazuki_src.mp4 (640x360, 60s) -> hazuki_trimmed.mp4 (640x360, 2s)
- chiko_trimmed.mov + hazuki_trimmed.mp4 -> merged.mp4 (640x720, 2s) -> merged.gif
chiko_src.mov is not uploaded and only in my iPhone.