Function gstreamer_audio_sys::gst_buffer_add_audio_meta

pub unsafe extern "C" fn gst_buffer_add_audio_meta(
    buffer: *mut GstBuffer, 
    info: *const GstAudioInfo, 
    samples: size_t, 
    offsets: *mut size_t
) -> *mut GstAudioMeta

This is supported on crate feature v1_16 only.