Class RANSNx16Encode

java.lang.Object
htsjdk.samtools.cram.compression.rans.RANSEncode<RANSNx16Params>
htsjdk.samtools.cram.compression.rans.RANSNx16Encode
public class RANSNx16Encode extends RANSEncode<RANSNx16Params>
Encoder for the CRAM 3.1 rANSNx16 codec. Internal encoding uses byte[] with backwards-write to eliminate the O(N) reverse pass. Pack/RLE/Stripe preprocessing still bridges through ByteBuffer where CompressionUtils methods require it.

  • Constructor Details

    • RANSNx16Encode

      public RANSNx16Encode()

  • Method Details

    • compress

      public byte[] compress(byte[] input, RANSNx16Params ransNx16Params)
      Compress a byte array using the rANS Nx16 codec. Applies the transformations specified by the params (PACK, RLE, STRIPE) as preprocessing, then encodes the result with Order-0 or Order-1 rANS using 4-way or 32-way interleaving.
      Specified by:
      compress in class RANSEncode<RANSNx16Params>
      Parameters:
      input - the data to compress
      ransNx16Params - encoding parameters specifying order, interleave width, and transformations
      Returns:
      the compressed byte stream