Function av_mdct_init

pub unsafe extern "C" fn av_mdct_init(
    nbits: i32,
    inverse: i32,
    scale: f64,
) -> *mut FFTContext

@deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_MDCT, with a flag of AV_TX_FULL_IMDCT for a replacement to av_imdct_calc.