public GZipDecompress(Stream read, Stream write)
{
_streamRead = read;
_streamWrite = write;
var header = FrameHelper.ReadWindowHeaderFromCompressedStream(_streamRead);
FramesCount = header.FramesCount;
_streamWrite.SetLength(header.SourceLength);
}
public GZipCompress(Stream toRead, Stream toWrite, int frameLength, int headerId)
{
_streamToRead = toRead;
_streamToWrite = toWrite;
_frameLength = frameLength;
_headerId = headerId;
FramesCount = _streamToRead.Length / _frameLength + (_streamToRead.Length % _frameLength > 0 ? 1 : 0);
var header = new WindowHeader(1, 1, _streamToRead.Length, FramesCount);
FrameHelper.WriteWindowHeaderToStream(_streamToWrite, header);
}
public IEnumerable <Frame> Read()
{
while (_streamRead.Position < _streamRead.Length)
{
if (ReadFramesCount >= FramesCount)
{
break;
}
var frame = FrameHelper.ReadCompressedFrameFromStream(_streamRead);
ReadFramesCount++;
yield return(frame);
}
}
public IEnumerable <Frame> Read()
{
while (_streamToRead.Position < _streamToRead.Length)
{
if (ReadFramesCount >= FramesCount)
{
break;
}
var needToRead = (int)(((_streamToRead.Length - _streamToRead.Position) > _frameLength)
? _frameLength
: _streamToRead.Length - _streamToRead.Position);
yield return(FrameHelper.CreateUncompressedFrameFromStream(_streamToRead, needToRead, _headerId, ReadFramesCount++));
}
}
public void Write(Frame frame)
{
FrameHelper.WriteFrameToStream(_streamToWrite, frame);
}