Field Detail

• len

  public final int len

  The length counts only the data field, not itself, the chunk type code, or the CRC. Zero is a valid length. Although encoders and decoders should treat the length as unsigned, its value must not exceed 231-1 bytes.

• idbytes

  public final byte[] idbytes

  A 4-byte chunk type code. uppercase and lowercase ASCII letters

• id

  public final String id

• data

  public byte[] data

  The data bytes appropriate to the chunk type, if any. This field can be of zero length. Does not include crc. If it's null, it means that the data is ot available

• crcval

  public byte[] crcval

  A 4-byte CRC (Cyclic Redundancy Check) calculated on the preceding bytes in the chunk, including the chunk type code and chunk data fields, but not including the length field.

Constructor Detail

• ChunkRaw

  public ChunkRaw(int len,
          String id,
          boolean alloc)

• ChunkRaw

  public ChunkRaw(int len,
          byte[] idbytes,
          boolean alloc)

Method Detail

• allocData

  public void allocData()

• writeChunk

  public void writeChunk(OutputStream os)

  Computes the CRC and writes to the stream. If error, a PngjOutputException is thrown Note that this is only used for non

• checkCrc

  public void checkCrc()

• updateCrc

  public void updateCrc(byte[] buf,
               int off,
               int len)

• getOffset

  public long getOffset()

• setOffset

  public void setOffset(long offset)

• toString

  public String toString()

  Overrides:

  toString in class Object

• hashCode

  public int hashCode()

  Overrides:

  hashCode in class Object

• equals

  public boolean equals(Object obj)

  Overrides:

  equals in class Object