Function av_samples_alloc_array_and_samples 

pub unsafe extern "C" fn av_samples_alloc_array_and_samples(
    audio_data: *mut *mut *mut u8,
    linesize: *mut i32,
    nb_channels: i32,
    nb_samples: i32,
    sample_fmt: i32,
    align: i32,
) -> i32