How can I pass a rotation angle to the ffmpeg library?

Question

For crop the video in Android, the only solution I founded: ffmpeg library. After reading documentation I do not quite understand what parameters the command line receives. For example,

String[] cmd = {"-i", in, "-filter:v", "crop=" + 240 + ":" + 120 + ":" + 100 + ":" + 100, "-c:a", "copy", out};

How can apply the Rotation Angle?

What is the correct cmd for video cropping?

Please, see my answer http://stackoverflow.com/questions/41138683/how-to-crop-video-with-ffmpeg-library-in-android/41298781#41298781 — Dylan, Dec 23 '16 at 09:38

score 1 · Accepted Answer · edited May 23 '17 at 10:30

1

Just quick googling found following.

Cropping video (Nicely explained answer)

Video rotation ffmpeg command

ffmpeg -i in.mov -vf "transpose=1" out.mov

valid options for transpose

0 = 90CounterCLockwise and Vertical Flip (default)
1 = 90Clockwise
2 = 90CounterClockwise
3 = 90Clockwise and Vertical Flip

I hope this helps

video rotation answer source

edited May 23 '17 at 10:30

Community

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answered Dec 13 '16 at 13:59

Nakul

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How can I pass a rotation angle to the ffmpeg library?

1 Answers1