Class TIFFJPEGDecompressor

java.lang.Object
com.github.jaiimageio.plugins.tiff.TIFFDecompressor
com.github.jaiimageio.impl.plugins.tiff.TIFFJPEGDecompressor
Direct Known Subclasses:
TIFFOldJPEGDecompressor

public class TIFFJPEGDecompressor extends TIFFDecompressor
  • Field Details

  • Constructor Details

    • TIFFJPEGDecompressor

      public TIFFJPEGDecompressor()
  • Method Details

    • beginDecoding

      public void beginDecoding()
      Description copied from class: TIFFDecompressor
      This routine is called prior to a sequence of calls to the decode method, in order to allow any necessary tables or other structures to be initialized based on metadata values. This routine is guaranteed to be called any time the metadata values have changed.

      The default implementation computes tables used by the decode method to rescale components to different bit depths. Thus, if this method is overridden, it is important for the subclass method to call super(), unless it overrides decode as well.

      Overrides:
      beginDecoding in class TIFFDecompressor
    • decodeRaw

      public void decodeRaw(byte[] b, int dstOffset, int bitsPerPixel, int scanlineStride) throws IOException
      Description copied from class: TIFFDecompressor
      Decodes the source data into the provided byte array b, starting at the offset given by dstOffset. Each pixel occupies bitsPerPixel bits, with no padding between pixels. Scanlines are separated by scanlineStride bytes.
      Specified by:
      decodeRaw in class TIFFDecompressor
      Parameters:
      b - a byte array to be written.
      dstOffset - the starting offset in b to be written.
      bitsPerPixel - the number of bits for each pixel.
      scanlineStride - the number of bytes to advance between that starting pixels of each scanline.
      Throws:
      IOException - if an error occurs reading from the source ImageInputStream.
    • finalize

      protected void finalize() throws Throwable
      Overrides:
      finalize in class Object
      Throws:
      Throwable