FFmpeg將多張圖片合成視頻 - CSDN博客 https://blog.csdn.net/wangshuainan/article/details/77914508
Slideshow – FFmpeg https://trac.ffmpeg.org/wiki/Slideshow
多線程
15幀每秒 且 每5秒切換圖片 === 獨立
./ffmpeg -y -threads 5 -loop 1 -r 0.5 -i /tmp/image%04d.jpg -i concat:"{}" -pix_fmt yuv420p -vcodec libx264 -b:v 300k -r:v 15 -preset medium -crf 30 -s 1200x414 -t {} {}
子視頻合並
.\ffmpeg.exe -i "concat:a.avi |b.avi | c.avi " -acodec copy test.mp4
.\ffmpeg.exe -i "concat:a.avi |b.avi | c.avi " -acodec copy test.avi