Constant AV_TX_DOUBLE_FFT

pub const AV_TX_DOUBLE_FFT: u32 = 2; // 2u32

Standard complex to complex FFT with sample data type of AVComplexFloat, AVComplexDouble or AVComplexInt32, for each respective variant.

Output is not 1/len normalized. Scaling currently unsupported. The stride parameter must be set to the size of a single sample in bytes.