| jj2000.j2k.entropy.encoder.CodedCBlkDataSrcEnc
All known Subclasses: jj2000.j2k.entropy.encoder.EntropyCoder,
| CodedCBlkDataSrcEnc | | public interface CodedCBlkDataSrcEnc extends ForwWTDataProps(Code) | | This interface defines a source of entropy coded data and methods to
transfer it in a code-block by code-block basis. In each call to
'getNextCodeBlock()' a new coded code-block is returned. The code-block are
retruned in no specific-order.
This interface is the source of data for the rate allocator. See the
'PostCompRateAllocator' class.
For each coded-code-block the entropy-coded data is returned along with
the rate-distortion statistics in a 'CBlkRateDistStats' object.
See Also: PostCompRateAllocator
See Also: CBlkRateDistStats
See Also: EntropyCoder |
| Method Summary | |
| public CBlkRateDistStats | getNextCodeBlock(int c, CBlkRateDistStats ccb)
Returns the next coded code-block in the current tile for the specified
component, as a copy (see below). | | public int | getPPX(int t, int c, int r)
Returns the width of a packet for the specified tile-
component and resolution level. | | public int | getPPY(int t, int c, int r)
Returns the height of a packet for the specified tile-
component and resolution level. | | public boolean | precinctPartitionUsed(int c, int t)
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| getNextCodeBlock | | public CBlkRateDistStats getNextCodeBlock(int c, CBlkRateDistStats ccb)(Code) | | Returns the next coded code-block in the current tile for the specified
component, as a copy (see below). The order in which code-blocks are
returned is not specified. However each code-block is returned only
once and all code-blocks will be returned if the method is called 'N'
times, where 'N' is the number of code-blocks in the tile. After all
the code-blocks have been returned for the current tile calls to this
method will return 'null'.
When changing the current tile (through 'setTile()' or 'nextTile()')
this method will always return the first code-block, as if this method
was never called before for the new current tile.
The data returned by this method is always a copy of the internal
data of this object, if any, and it can be modified "in place" without
any problems after being returned.
Parameters:
c - The component for which to return the next code-block.
Parameters:
ccb - If non-null this object might be used in returning the codedcode-block in this or any subsequent call to this method. If null a newone is created and returned. If the 'data' array of 'cbb' is not nullit may be reused to return the compressed data. The next coded code-block in the current tile for component'n', or null if all code-blocks for the current tile have beenreturned.
See Also: CBlkRateDistStats |
| getPPX | | public int getPPX(int t, int c, int r)(Code) | | Returns the width of a packet for the specified tile-
component and resolution level.
Parameters:
t - The tile
Parameters:
c - The component
Parameters:
r - The resolution level The width of a packet for the specified tile-component and resolution level. |
| getPPY | | public int getPPY(int t, int c, int r)(Code) | | Returns the height of a packet for the specified tile-
component and resolution level.
Parameters:
t - The tile
Parameters:
c - The component
Parameters:
r - The resolution level The height of a packet for the specified tile-component and resolution level. |
| precinctPartitionUsed | | public boolean precinctPartitionUsed(int c, int t)(Code) | | Returns true if the precinct partition is used for the
specified component and tile, returns false otherwise
Parameters:
c - The component
Parameters:
t - The tile |
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