ffmpeg

tags: tool video editor

ffmpeg

get all frame

//%03d 如果小於三位數以三位數呈現
ffmpeg -i "path.mp4" "path_%03d.jpg"

get fps

ffmpeg -i "file"

images to video

ffmpeg -i "%03d.png" -c:v libx264 -vf fps=25 -pix_fmt yuv420p "out.mp4"

png to gif

ffmpeg -i %04d.png -vf palettegen=reserve_transparent=1 palette.png
ffmpeg -framerate 25 -i %04d.png -i palette.png -lavfi paletteuse=alpha_threshold=128 -gifflags -offsetting treegif.gif

m4a to mp3

ffmpeg -i in.m4a -c:v copy -c:a libmp3lame -q:a 4 out.mp3

cut video

4:00~4:10

ffmpeg -ss 00:04:00 -i qg.mp4 -to 00:04:10 -c copy output.mp4

replace aduio on video

ffmpeg -i video.mp4 -i audio.wav -map 0:v -map 1:a -c:v copy -shortest output.mp4

Add audio

ffmpeg -i video.mkv -i audio.mp3 -map 0 -map 1:a -c:v copy -shortest output.mkv