FFmpeg CLI

H.264 + MP4 container, no audio

ffmpeg -i in.avi -vcodec h264 out.mp4
ffmpeg -i in.avi -ss 00:12:34 -t 01:23:45 out.mp4

-ss : the starting timecode, hh:mm:ss.xxx -t : the duration to transcode after the starting timecode, If omitted, will encode to the end.

-vcodec copy -acodec copy -vn : ignore video -an : ignore audio

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To encode an image sequence to a video file:

ffmpeg -framerate 25 -i “image_%03d.png” -vcodec h264 -b:v 10485760 out.mp4
ffmpeg -framerate 24 -start_number 12 -i “image_%03d.png” -vcodec h264 -b:v 10485760 out.mp4

-b:v : the video bitrate of the output file

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Transcode a video to an image sequence:

ffmpeg -i in.mp4 -vocdec png -an “image_%03d.png”

 

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Rotate video

0 = 90CounterClockwise and Vertical Flip (default)

1 = 90Clockwise

2 = 90CounterClockwise

3 = 90Clockwise and Vertical Flip

To rotate 180 degress, instead use “transpose=2,transpose=2”

ffmpeg -i in.mp4 -vf “transpose=1” -codec:a copy out.mp4