public AssetBundleReader(string file)
{
FileStream fs = new FileStream(file, FileMode.Open);
BufferedStream bfs = new BufferedStream(fs);
byte[] bf = new byte[(int)fs.Length];
fs.Read(bf, 0, (int)fs.Length);
inData = new ByteArray(bf);
header.Read(inData);
if (!header.HasValidSignature())
{
Debug.LogError("Invalid signature");
return;
}
if (header.IsCompressed())
{
SevenZip.Compression.LZMA.Decoder coder = new SevenZip.Compression.LZMA.Decoder();
uint length = (uint)(fs.Length - header.GetHeaderSize());
byte[] inBytes = new byte[length];
inData.ReadBytes(inBytes, 0, length);
MemoryStream input = new MemoryStream(inBytes);
MemoryStream output = new MemoryStream();
// Read the decoder properties
byte[] properties = new byte[5];
input.Read(properties, 0, 5);
// Read in the decompress file size.
byte[] fileLengthBytes = new byte[8];
input.Read(fileLengthBytes, 0, 8);
long fileLength = BitConverter.ToInt64(fileLengthBytes, 0);
coder.SetDecoderProperties(properties);
coder.Code(input, output, input.Length, fileLength, null);
output.Position = 0;
inData = new ByteArray(output);
Debug.Log("fileLength:" + fileLength);
}
uint files = inData.ReadUInt();
Debug.Log(files);
for (int i = 0; i < files; i++)
{
AssetBundleEntryInfo entryInfo = new AssetBundleEntryInfo();
entryInfo.Read(inData);
entryInfos.Add(entryInfo);
Debug.Log("AssetBundleEntryInfo");
inData.Postion = (int)entryInfo.GetOffset();
AssetHeader assetHeader = new AssetHeader();
assetHeader.Read(inData);
Debug.Log("AssetHeader");
MetadataInfo metadataInfo = new MetadataInfo();
metadataInfo.Read(inData, assetHeader);
Debug.Log("MetadataInfo");
//后面的都是小端读取
inData.IsBigEndian = false;
ObjectInfoTable objectInfoTable = new ObjectInfoTable();
objectInfoTable.Read(inData);
Debug.Log("ObjectInfoTable");
FileIdentifierTable fileIdentifierTable = new FileIdentifierTable();
fileIdentifierTable.Read(inData, assetHeader);
Debug.Log("FileIdentifierTable");
}
Debug.Log(inData.Postion);
}