For a given pixel at out_offset, get the first required input pixel at in_offset and the
return.length filter coefficients.
Note that for interlaced content, in_offset needs to be incremented with 2 to get the next input line.
| this |
a Scaler |
| out_offset |
an output offset |
| in_offset |
result input offset |
| n_taps |
result n_taps |
|
an array of |