Retrieves the stored 4x4 affine transformation matrix stored in meta in NDC coordinates. if meta is NULL, an identity matrix is returned.
NDC is a left-handed coordinate system
a #GstVideoAffineTransformationMeta
result of the 4x4 matrix
Retrieves the stored 4x4 affine transformation matrix stored in meta in NDC coordinates. if meta is NULL, an identity matrix is returned.
NDC is a left-handed coordinate system