Constant AV_TX_REAL_TO_IMAGINARY

pub const AV_TX_REAL_TO_IMAGINARY: u32 = 16; // 16u32

Perform a real to half-complex RDFT. Only the real, or imaginary coefficients will be output, depending on the flag used. Only available for forward RDFTs. Output array must have enough space to hold N complex values (regular size for a real to complex transform).