Transpose rows with columns in the input video and optionally flip it. For more in depth examples see the transpose video filter, which shares mostly the same options.

It accepts the following parameters:

dir

Specify the transposition direction.

Can assume the following values:

cclock_flip

Rotate by 90 degrees counterclockwise and vertically flip. (default)

clock

Rotate by 90 degrees clockwise.

cclock

Rotate by 90 degrees counterclockwise.

clock_flip

Rotate by 90 degrees clockwise and vertically flip.

passthrough

Do not apply the transposition if the input geometry matches the one specified by the specified value. It accepts the following values:

none

Always apply transposition. (default)

portrait

Preserve portrait geometry (when height >= width).

landscape

Preserve landscape geometry (when width >= height).