Encodes a packet and returns the buffer containing the encoded packet header. The code-blocks appear in a 3D array of CBlkRateDistStats, 'cbs'. The first index is the tile index in lexicographical order, the second index is the subband index (as defined in the Subband class), and the third index is the code-block index (whithin the subband tile) in lexicographical order as well. The indexes of the new truncation points for each code-block are specified by the 3D array of int 'tIndx'. The indices of this array are the same as for cbs. The truncation point indices in 'tIndx' are the indices of the elements of the 'truncIdxs' array, of the CBlkRateDistStats class, that give the real truncation points. If a truncation point index is negative it means that the code-block has not been included in any layer yet. If the truncation point is less than or equal to the highest truncation point used in previous layers then the code-block is not included in the packet. Otherwise, if larger, the code-block is included in the packet. The body of the packet can be obtained with the getLastBodyBuf() and getLastBodyLen() methods.

       <p>Layers must be coded in increasing order, in consecutive manner, for
       each tile, component and resolution level (e.g., layer 1, then layer 2,
       etc.). For different tile, component and/or resolution level no
       particular order must be followed.</p>

Declaration

public virtual BitOutputBuffer encodePacket(int ly, int c, int r, int t, CBlkRateDistStats[][] cbs, int[][] tIndx, BitOutputBuffer hbuf, byte[] bbuf, int pIdx)

Public Overridable Function encodePacket(ly As Integer, c As Integer, r As Integer, t As Integer, cbs As CBlkRateDistStats()(), tIndx As Integer()(), hbuf As BitOutputBuffer, bbuf As Byte(), pIdx As Integer) As BitOutputBuffer

encodePacket Method

encodePacket(int, int, int, int, CBlkRateDistStats[][], int[][], BitOutputBuffer, byte[], int)

Declaration

Parameters

Returns

Type	Name	Description
int	ly	The layer index (starts at 1).
int	c	The component index.
int	r	The resolution level
int	t	Index of the current tile
CBlkRateDistStats[][]	cbs	The 3D array of coded code-blocks.
int[][]	tIndx	The truncation point indices for each code-block.
BitOutputBuffer	hbuf	The header buffer. If null a new BitOutputBuffer is created and returned. This buffer is reset before anything is written to it.
byte[]	bbuf	The body buffer. If null a new one is created. If not large enough a new one is created.
int	pIdx	The precinct index.