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This patch eliminates the intermediate diff buffer usage by
combining the short idct and the add residual into one function.
The encoder can use the same code as well.
Change-Id: Iea7976b22b1927d24b8004d2a3fddae7ecca3ba1
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This commit added pre/post scaling for first half of fDCT16x16 to
reduce error, by simulation of 100,000 blocks for random inputs,
the average sse reduced from 2.1/block to 0.0498/block.
also enabled tests for 16x16 fDCT and iDCT
Change-Id: Id2a95f0464c6dd4118797d456237ae90274c0f02
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for idct 16x16 unit test
Change-Id: I51da9405c3a4d7bb3f4cdf062aaccaa90b33dca4
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test for forward transform will be enabled later after re-do forward
transform
Change-Id: Ie7c7cf88baf7ecbebbe52fe027e1c3b33d3b9d49
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Change-Id: Idcf827d8ae6429ee5b673c3398f838dbeacb4e74
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Change-Id: Ib8f8a66c9fd31e508cdc9caa662192f38433aa3d
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s/([vV][pP])8/$19/
additionally dct.h was removed; declare the _c functions that are used
in the tests. the TODO for conversion to parameterized tests still
remains.
Change-Id: I73db9425a57075bbb78a92693ba6b320578981cd
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Change-Id: Ic084c475844b24092a433ab88138cf58af3abbe4
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The commit replaces run-time initialization of cosine constants with
static constant values, which provides ~30% relief on slow speed. The
real solution, however will be to implement integer versions of those
functions that current use float/double.
Change-Id: Ie3ff1793509653d78dd1aeaf88cc6737da1bc55f
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Set on all 16x16 intra/inter modes
Features:
- Butterfly fDCT/iDCT
- Loop filter does not filter internal edges with 16x16
- Optimize coefficient function
- Update coefficient probability function
- RD
- Entropy stats
- 16x16 is a config option
Have not tested with experiments.
hd: 2.60%
std-hd: 2.43%
yt: 1.32%
derf: 0.60%
Change-Id: I96fb090517c30c5da84bad4fae602c3ec0c58b1c
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