public override int Read(byte[] buffer, int offset, int count)
{
int requiredCount = count - offset;
int remainingCount = requiredCount;
for (; _chunkIndex < _stream.Chunks.Count && remainingCount > 0;)
{
IStreamChunk currentChunk = _stream.Chunks[_chunkIndex];
int currentChunkLength = currentChunk.Length - _chunkOffset;
if (currentChunkLength > remainingCount)
{
currentChunkLength = remainingCount;
}
int currentReadCount = currentChunk.Stream.Read(buffer, offset, currentChunkLength);
offset += currentReadCount;
remainingCount -= currentReadCount;
_chunkOffset += currentChunkLength;
_position += currentReadCount;
if (_chunkOffset >= currentChunk.Length)
{
_chunkOffset = 0;
_chunkIndex++;
}
}
return(requiredCount - remainingCount);
}
protected virtual void ProcessInputStreamChunk(InputWorkItem workItem, IStreamChunk inputStreamChunk, Stream compressionStream)
{
using (Stream chunkStream = new BufferedStream(inputStreamChunk.Stream))
{
byte[] buffer = new byte[inputStreamChunk.Length];
int readedBytes = inputStreamChunk.Stream.Read(buffer, 0, (int)inputStreamChunk.Length);
if (readedBytes < inputStreamChunk.Length)
{
throw new CompressionException("Cannot read input stream");
}
compressionStream.Write(buffer, 0, inputStreamChunk.Length);
}
}