Function libheif_sys::heif_context_assign_thumbnail

pub unsafe extern "C" fn heif_context_assign_thumbnail(
    arg1: *mut heif_context,
    master_image: *const heif_image_handle,
    thumbnail_image: *const heif_image_handle
) -> heif_error

Assign ‘thumbnail_image’ as the thumbnail image of ‘master_image’.