BitHelper.ReadAniClip C# (CSharp) Method

    public static FB.PosePlus.AniClip ReadAniClip(System.IO.Stream s)
    {
        var buf4 = new byte[4];

        var clip = new FB.PosePlus.AniClip();
        //name
        int slen = s.ReadByte();
        byte[] buf = new byte[slen];
        s.Read(buf, 0, slen);
        clip.name = System.Text.Encoding.UTF8.GetString(buf);
        //fps
        s.Read(buf4, 0, 4);
        clip.fps = BitConverter.ToSingle(buf4, 0);
        //loop
        clip.loop = s.ReadByte() > 0;
        {
            //boneinfo
            s.Read(buf4, 0, 4);
            int bcount = BitConverter.ToInt32(buf4, 0);

            for (int i = 0; i < bcount; i++)
            {
                slen = s.ReadByte();
                buf = new byte[slen];
                s.Read(buf, 0, slen);
                string bone = System.Text.Encoding.UTF8.GetString(buf);
                clip.boneinfo.Add(bone);
            }
        }
        {
            //subclips
            s.Read(buf4, 0, 4);
            int scount = BitConverter.ToInt32(buf4, 0);
            for (int i = 0; i < scount; i++)
            {
                FB.PosePlus.SubClip sc = new FB.PosePlus.SubClip();
                slen = s.ReadByte();
                buf = new byte[slen];
                s.Read(buf, 0, slen);
                sc.name = System.Text.Encoding.UTF8.GetString(buf);
                sc.loop = s.ReadByte() > 0;
                s.Read(buf4, 0, 4);
                sc.startframe = BitConverter.ToUInt32(buf4,0);
                s.Read(buf4, 0, 4);
                sc.endframe = BitConverter.ToUInt32(buf4,0);

                clip.subclips.Add(sc);
            }
        }
        {//frame
            s.Read(buf4, 0, 4);
            int fcount = BitConverter.ToInt32(buf4, 0);

            for (int i = 0; i < fcount; i++)
            {
                FB.PosePlus.Frame f = new FB.PosePlus.Frame();
                s.Read(buf4, 0, 4);
                f.fid = BitConverter.ToInt32(buf4, 0);
                f.key = s.ReadByte() > 0;
                clip.frames.Add(f);

                for (int ib = 0; ib < clip.boneinfo.Count; ib++)
                {
                    clip.frames[i].bonesinfo.Add(new FB.PosePlus.PoseBoneMatrix());
                    clip.frames[i].bonesinfo[ib].Load(s,
                        i > 0 ? clip.frames[i - 1].bonesinfo[ib] : null);
                }
            }
        }
        return clip;
    }
}

        public AniClip GetAniClip(string name)
        {
            FB.PosePlus.AniClip clip = null;
            if (loadaniclipcache.TryGetValue(name, out clip))
            {
                return(clip);
            }

            byte[] buf = bufs[name];
            using (System.IO.MemoryStream ms = new System.IO.MemoryStream(buf))
            {
                clip = BitHelper.ReadAniClip(ms);
            }

            return(clip);
        }