SwfDotNet.IO.Swf.UpdateData C# (CSharp) Method

        public void UpdateData()
        {
            IEnumerator tags = tagList.GetEnumerator();
            while (tags.MoveNext())
            {
                BaseTag tag = (BaseTag)tags.Current;
                tag.Resolve(this);
                tag.UpdateData(header.Version);
            }
        }

        /// <summary>
        /// Writes the (compressed or uncompressed) swf data to a stream.
        /// The stream gets flushed and closed afterwards.
        /// </summary>
        /// <param name="swf">Swf</param>
        public void Write(Swf swf)
        {
            if (swf == null)
            {
                return;
            }

            // add EndTag is is not the last one
            BaseTag lastTag = swf.Tags.GetLastOne();

            if (lastTag == null || !(lastTag is EndTag))
            {
                swf.Tags.Add(new EndTag());
            }

            // update tag lengths to adapt to bytecode length
            swf.UpdateData();
            SwfHeader header = swf.Header;

            // ASCII seems to be ok for Flash 5 and 6+ as well
            BufferedBinaryWriter writer     = new BufferedBinaryWriter(baseStream, System.Text.Encoding.GetEncoding("ascii"));
            BufferedBinaryWriter dataWriter = writer;

            bool isCompressed = (header.Signature[0] == 'C');

            if (isCompressed && swf.Version >= 6)
            {
                // SharpZipLib makes it easy for us, simply
                // chain a Deflater into the stream
                DeflaterOutputStream def = new DeflaterOutputStream(baseStream);
                dataWriter = new BufferedBinaryWriter(def);
            }

            // writer header data, always uncompressed
            writer.WriteString(header.Signature, 3);
            writer.Write(swf.Version);
            writer.Write(swf.ByteCount);
            writer.Flush();

            // write header data pt.2, using either
            // original stream or deflater stream
            header.Size.WriteTo(dataWriter);
            dataWriter.SynchBits();
            dataWriter.WriteFWord(header.Fps, 8, 8);
            dataWriter.Write(header.Frames);

            // write tags data
            IEnumerator tags = swf.Tags.GetEnumerator();

            while (tags.MoveNext())
            {
                BaseTag tagToWrite = (BaseTag)tags.Current;
                dataWriter.Write(tagToWrite.Data);
            }

            // flush + close
            dataWriter.Flush();
            dataWriter.Close();
        }