public int Compress(PointCloudTile tile, byte[] uncompressedBuffer, int count, byte[] compressedBuffer)
{
MemorableMemoryStream compressedStream = new MemorableMemoryStream(compressedBuffer);
using (ZipOutputStream zipStream = new ZipOutputStream(compressedStream, true))
{
zipStream.CompressionMethod = Ionic.Zip.CompressionMethod.Deflate;
zipStream.CompressionLevel = Ionic.Zlib.CompressionLevel.BestSpeed;
zipStream.PutNextEntry("a");
zipStream.Write(uncompressedBuffer, 0, count);
}
return (int)compressedStream.MaxPosition;
}
public int Compress(PointCloudTile tile, byte[] uncompressedBuffer, int count, byte[] compressedBuffer)
{
SevenZipCompressor compressor = new SevenZipCompressor
{
CompressionMethod = SevenZip.CompressionMethod.Lzma2,
CompressionLevel = CompressionLevel.Fast
};
MemoryStream uncompressedStream = new MemoryStream(uncompressedBuffer, 0, count, false);
// custom stream is required because the position is always 32 instead of the end of the stream
MemorableMemoryStream compressedStream = new MemorableMemoryStream(compressedBuffer);
compressor.CompressStream(uncompressedStream, compressedStream);
return (int)compressedStream.MaxPosition;
}
