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This functions gets a DataBlk with the size of the current code-block and fills it with the ROI mask. The lowest scaling value in the mask for this code-block is returned by the function to be used for modifying the rate distortion estimations.
public abstract bool getROIMask(DataBlkInt db, Subband sb, int magbits, int c)
| Type | Name | Description |
|---|---|---|
| DataBlkInt | db | The data block that is to be filled with the mask |
| Subband | sb | The root of the current subband tree |
| int | magbits | The number of magnitude bits in this code-block |
| int | c | Component number |
| Type | Description |
|---|---|
| bool | Whether or not a mask was needed for this tile |