[FFmpeg-soc] rfc: swscale-example weird output

[Keiji Costantini]

I pulled out getcoeff() from initFilter(), as a step for simplify the code.

The patch attached is the relevant part.

This patch changes output of swscale-example

for example:

- yuv420p 96x96 -> rgb565   64x  64 flags=32 SSD=   79,  983,  746
+ yuv420p 96x96 -> rgb565   64x  64 flags=32 SSD=   77,  980,  738

only a (relative) small number of lines are affected, but it's 
nonetheless strange that moving code makes different output.

Does anyone have any idea about how this can happens?
-- 
Keiji Costantini
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