public interface IVLCObject : IDisposable
{
    IntPtr ObjectHandle { get; }

    bool IsInvalid { get; }
}

public interface IVLCMedia : IVLCObject
{
    Uri Location { get; }
    void AddOption(string mediaOption);
    long Duration { get; }
    ...
}

public interface IVLCMediaPlayer : IVLCObject
{
    IVLCMedia Media { get; set; }
    bool Play();
    void Pause();
    void Stop();
    ...
}

internal class VLCMediaPlayer
    : VLCObject<VLCMediaPlayer.libvlc_media_player_release_t>, IVLCMediaPlayer
{
    public VLCMediaPlayer(IVLCObject vlcObject)
        : base(libvlc_media_player_new(vlcObject,
            vlcObject.GetType().GetInterface("IVLCMedia") != null), libvlc_media_player_release)
    {
    }

    ....

    private static IntPtr libvlc_media_player_new(IVLCObject vlcObject, bool fromMedia = false)
    {
        return Environment.Is64BitProcess
            ? fromMedia
                ? libvlc_media_player_new_from_media64(vlcObject.ObjectHandle)
                : libvlc_media_player_new64(vlcObject.ObjectHandle)
            : fromMedia
                ? libvlc_media_player_new_from_media32(vlcObject.ObjectHandle)
                : libvlc_media_player_new32(vlcObject.ObjectHandle);
    }
}