private bool ReadHeader() { // Read file signature this.signature = Encoding.ASCII.GetString(this.swf.ReadUI8(3)); // "FWS" or "CWS" for ZLIB compressed (v6.0 or later) if (this.signature != "FWS" && this.signature != "CWS") { Trace.WriteLine("Not a valid SWF (Flash) file signature"); return(false); } TraceManager.Add(String.Format("Signature : {0}", this.Signature)); // Read file version this.version = this.swf.ReadUI8(); TraceManager.Add(String.Format("Version : {0}", this.Version)); // File length this.fileLength = this.swf.ReadUI32(); TraceManager.Add(String.Format("File length : {0} bytes", this.FileLength)); // If the file is compressed, this is where the ZLIB decompression ("inflate") begins if (this.signature == "CWS") { // Begin inflating stream ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputStream inflatedStream = new ICSharpCode.SharpZipLib.Zip.Compression.Streams.InflaterInputStream(this.stream); swf.Stream = inflatedStream; } // Frame size Rect frameSize = new Rect(swf); this.frameWidth = frameSize.XMax; this.frameHeight = frameSize.YMax; TraceManager.Add(String.Format("Frame width : {0} twips ({1} pixels)", this.FrameWidth, this.FrameWidth / 20)); TraceManager.Add(String.Format("Frame height: {0} twips ({1} pixels)", this.FrameHeight, this.FrameHeight / 20)); // Frame rate (stored in UI8.UI8 format) ushort frameRateMinor = swf.ReadUI8(); ushort frameRateMajor = swf.ReadUI8(); this.frameRate = Convert.ToSingle(String.Format("{0}.{1}", frameRateMajor, frameRateMinor)); // TODO: Improve this later TraceManager.Add(String.Format("Frame rate : {0} fps", this.FrameRate)); // Frame count this.frameCount = swf.ReadUI16(); TraceManager.Add(String.Format("Frame count : {0}", this.FrameCount)); return(true); }
public Tag(SWFReader swf) { ushort tagInfo = swf.ReadUI16(); this.id = (ushort)(tagInfo >> 6); this.length = (ulong)(tagInfo & 0x3f); // Is this a long data block? if (this.length == 0x3f) { this.length = swf.ReadUI32(); } Trace.WriteLine(String.Format("Tag : {0}", GetType(this.ID))); // For now, just skip the remainder of the tag // ** This is normally where you'd process each tag in the file ** for (ulong index = 0; index < length; index++) { swf.Stream.ReadByte(); } }
public Tag(SWFReader swf) { ushort tagInfo = swf.ReadUI16(); this.id = (ushort)(tagInfo >> 6); this.length = (ulong)(tagInfo & 0x3f); // Is this a long data block? if (this.length == 0x3f) { this.length = swf.ReadUI32(); } Trace.WriteLine(String.Format("Tag : {0}", GetType(this.ID))); // For now, just skip the remainder of the tag // ** This is normally where you'd process each tag in the file ** for (ulong index = 0; index < length; index++) { swf.Stream.ReadByte(); } }