Function avresample_get_matrix

pub unsafe extern "C" fn avresample_get_matrix(
    avr: *mut AVAudioResampleContext,
    matrix: *mut f64,
    stride: c_int,
) -> c_int

@deprecated use libswresample

Get the current channel mixing matrix.

If no custom matrix has been previously set or the AVAudioResampleContext is not open, an error is returned.

@param avr audio resample context @param matrix mixing coefficients; matrix[i + stride * o] is the weight of input channel i in output channel o. @param stride distance between adjacent input channels in the matrix array @return 0 on success, negative AVERROR code on failure