File	Doc	Category	Size	Date	Package
JPEGImageReadParam.java	API Doc	Android 1.5 API	3744	Wed May 06 22:41:54 BST 2009	javax.imageio.plugins.jpeg

JPEGImageReadParam

• java.lang.Object
  • javax.imageio.IIOParam
    • javax.imageio.ImageReadParam

Fields Summary
private JPEGQTable[]	qTables The q tables.
private JPEGHuffmanTable[]	dcHuffmanTables The dc huffman tables.
private JPEGHuffmanTable[]	acHuffmanTables The ac huffman tables.

Constructors Summary
public JPEGImageReadParam() Instantiates a new JPEGImageReadParam.

Methods Summary
public boolean	areTablesSet() Returns true if tables are set, false otherwise. return true, if tables are set, false otherwise. return qTables != null;
public javax.imageio.plugins.jpeg.JPEGHuffmanTable[]	getACHuffmanTables() Gets the AC Huffman tables. return the AC Huffman tables which are set, or null. return acHuffmanTables == null ? null : acHuffmanTables.clone();
public javax.imageio.plugins.jpeg.JPEGHuffmanTable[]	getDCHuffmanTables() Gets the DC Huffman tables. return the DC Huffman tables which are set, or null. return dcHuffmanTables == null ? null : dcHuffmanTables.clone();
public javax.imageio.plugins.jpeg.JPEGQTable[]	getQTables() Gets the quantization tables. return the quantization tables, or null. return qTables == null ? null : qTables.clone();
public void	setDecodeTables(javax.imageio.plugins.jpeg.JPEGQTable[] qTables, javax.imageio.plugins.jpeg.JPEGHuffmanTable[] DCHuffmanTables, javax.imageio.plugins.jpeg.JPEGHuffmanTable[] ACHuffmanTables) Sets the quantization and Huffman tables for using in decoding streams. param qTables the quantization tables. param DCHuffmanTables the standart DC Huffman tables. param ACHuffmanTables the standart AC huffman tables. if (qTables == null || DCHuffmanTables == null || ACHuffmanTables == null) { throw new IllegalArgumentException("Invalid JPEG table arrays"); } if (DCHuffmanTables.length != ACHuffmanTables.length) { throw new IllegalArgumentException("Invalid JPEG table arrays"); } if (qTables.length > 4 || DCHuffmanTables.length > 4) { throw new IllegalArgumentException("Invalid JPEG table arrays"); } // Do the shallow copy, it should be enough this.qTables = qTables.clone(); dcHuffmanTables = DCHuffmanTables.clone(); acHuffmanTables = ACHuffmanTables.clone();
public void	unsetDecodeTables() Unset all decoded tables. qTables = null; dcHuffmanTables = null; acHuffmanTables = null;