pub unsafe extern "C" fn snd_pcm_area_copy(
dst_channel: *const snd_pcm_channel_area_t,
dst_offset: snd_pcm_uframes_t,
src_channel: *const snd_pcm_channel_area_t,
src_offset: snd_pcm_uframes_t,
samples: c_uint,
format: snd_pcm_format_t,
) -> c_int