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* avfilter/vf_hqx: optimize table initMichael Niedermayer2014-06-241-8/+15
| | | | | | | | | | 5389024880 -> 1389386610 dezicycles This surely can be optimized more, i just didnt want to cause a slowdown when trying to make the fate test bitexact. Further optimization left to ubitux Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avfilter/vf_hqx: avoid floatsMichael Niedermayer2014-06-241-6/+6
| | | | | | | | this likely fixes fate failures 2748170880 -> 5389024880 dezicycles Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avfilter/vf_hqx: remove << 0Michael Niedermayer2014-06-221-1/+1
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avfilter/vf_hqx: partly fix big endian fate testMichael Niedermayer2014-06-221-1/+1
| | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* avfilter/hqx: add some self promotion in doxy.Clément Bœsch2014-06-211-0/+1
| | | | This is useful to understand how it's different from the original code.
* avfilter/hqx: unroll the pattern calculationClément Bœsch2014-06-211-15/+9
| | | | Code si smaller, no speed difference.
* avfilter: add hqx filter (hq2x, hq3x, hq4x)Clément Bœsch2014-06-211-0/+560
Partially fixes Ticket #3404 (xbr filter remaining)
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