Ffmpeg
Show video details
Extracting video information of a video file using ffmpeg
ffmpeg -i video.mp4
Downsample Video
by scale
ffmpeg -i in.mp4 -s 640x480 out.mp4
by frame per second
ffmpeg -i big_buck_bunny.y4m fps-fps=30 big_buck_bunny.mp4
to target size
~/bin/custom/ffmpeg_resize_to_target_size.sh
Add Audio to video
How to add a new audio (not mixing) into a video using ffmpeg?
ffmpeg -i video.avi -i audio.mp3 -map 0 -map 1 -vcodec copy -shortest output_video.avi
Remove Audio
ffmpeg -i infile.avi -an -c:v copy outfile.avi
(-c:v copy says to copy instead of using a codec.)
Extract Audio from video
ffmpeg -i input-file-name-with-path output-filename.mp3
Join mp4 video files
Concat multiple (self-generated) videos using ffmpeg
ffmpeg -f concat -i "./list" -c copy out.mp4
Cut mp4 into pieces
ffmpeg -i YourFile.mp4 -ss 00:10:25 -t 00:00:05 -acodec copy -vcodec copy Output.mp4
Rotate Video
ffmpeg -i in.mov -vf "transpose=1" out.mov
For the transpose parameter you can pass:
0 = 90CounterCLockwise and Vertical Flip (default) 1 = 90Clockwise 2 = 90CounterClockwise 3 = 90Clockwise and Vertical Flip
And to flip it horizontally ffmpeg documentation:
For example to horizontally flip the video in input with ffmpeg:
ffmpeg -i in.avi -vf "hflip" out.avi