public static SwfPackage FromStream(Stream source) {
// get the header first so we know compression
SwfHeader header = SwfHeader.FromStream(source);
// uncompress the file based on compression method
Stream uncompressed;
if (header.Compression == SwfCompression.ZlibCompressed) {
uncompressed = new ZlibStream(source, CompressionMode.Decompress);
} else if (header.Compression == SwfCompression.LzmaCompressed {
}
}
public static SwfHeader FromStream(Stream source)
{
byte[] buffer = new byte[4];
source.Read(buffer, 0, 3);
// Magic bytes are {}, 0x57, 0x53
if (buffer[1] != 0x57 || buffer[2] != 0x53)
{
throw new SwfReadException("File is not a valid SWF file");
}
// Check for compression
SwfCompression compression;
switch (buffer[0])
{
case 0x46: // "F"
compression = SwfCompression.Uncompressed;
break;
case 0x43: // "C"
compression = SwfCompression.ZlibCompressed;
break;
case 0x5A: // "L"
compression = SwfCompression.LzmaCompressed;
break;
default:
throw new SwfReadException("Unable to recognize compression of SWF file");
}
// Check for version
source.Read(buffer, 0, 1);
byte version = buffer[0];
// Check for size
source.Read(buffer, 0, 4);
uint fileLength = BitConverter.ToUInt32(buffer, 0);
// Resolve for SwfHeader object
SwfHeader header = new SwfHeader(compression, version, fileLength);
Console.WriteLine("Resolved for header {0}", header);
return(header);
}
public SwfPackage(SwfHeader header, Rectangle boundingRect)
{
Header = header;
BoundingRect = boundingRect;
}