Shift chroma pixels horizontally and/or vertically.

The filter accepts the following options:

cbh

Set amount to shift chroma-blue horizontally.

cbv

Set amount to shift chroma-blue vertically.

crh

Set amount to shift chroma-red horizontally.

crv

Set amount to shift chroma-red vertically.

edge

Set edge mode, can be smear, default, or warp.