Beispiel #1
0
        public static void Compress(Stream source, Stream target, SwfFormat compressionFormat)
        {
            var reader       = new SwfStreamReader(source);
            var outputWriter = new SwfStreamWriter(target);

            var fileInfo = reader.ReadSwfFileInfo();
            var rest     = reader.ReadRest();

            if (fileInfo.Format != SwfFormat.FWS)
            {
                MemoryStream mem = new MemoryStream();
                source.Seek(0, SeekOrigin.Begin);
                Decompress(source, mem);
                mem.Seek(0, SeekOrigin.Begin);
                reader   = new SwfStreamReader(mem);
                fileInfo = reader.ReadSwfFileInfo();
                rest     = reader.ReadRest();
            }

            outputWriter.WriteSwfFileInfo(new SwfFileInfo {
                Format     = compressionFormat,
                FileLength = (uint)(rest.Length) + 8,
                Version    = fileInfo.Version
            });

            var compressed = new MemoryStream();

            SwfZip.Compress(new MemoryStream(rest), compressed, compressionFormat);
            outputWriter.WriteBytes(compressed.ToArray());

            outputWriter.Flush();
        }
Beispiel #2
0
        public static void Decompress(Stream source, Stream target)
        {
            var reader       = new SwfStreamReader(source);
            var outputWriter = new SwfStreamWriter(target);

            var fileInfo = reader.ReadSwfFileInfo();

            if (fileInfo.Format == SwfFormat.Unknown)
            {
                throw new NotSupportedException("Illegal file format");
            }

            var rest = reader.ReadRest();

            if (fileInfo.Format == SwfFormat.FWS)
            {
                outputWriter.WriteSwfFileInfo(fileInfo);
                outputWriter.WriteBytes(rest);
                return;
            }

            var uncompressed = new MemoryStream();

            SwfZip.Decompress(new MemoryStream(rest), uncompressed, fileInfo.Format);

            outputWriter.WriteSwfFileInfo(new SwfFileInfo {
                Format     = SwfFormat.FWS,
                FileLength = (uint)(uncompressed.Length + 8),
                Version    = fileInfo.Version
            });
            outputWriter.WriteBytes(uncompressed.ToArray());
            outputWriter.Flush();
        }
Beispiel #3
0
        public static ISwfStreamReader GetSwfStreamReader(SwfFileInfo info, Stream stream)
        {
            if (info.Format == SwfFormat.FWS)
            {
                return(new SwfStreamReader(stream));
            }

            MemoryStream memoryStream = new MemoryStream();

            SwfZip.Decompress(stream, memoryStream, info.Format);
            return(new SwfStreamReader(memoryStream));
        }