Yaowu Xu b62d093efa Improve the accuracy of forward walsh-hadamard transform ...

Besides the slight improvement in round trip error. This
also fixes a sign bias in the forward transform, so the
round trip errors are evenly distributed between +1s and
-1s. The old bias seemed to work well with the dc sign bias
in old fdct,  which no longer exist in the improved fdct.

Change-Id: I8635e7be16c69e69a8669eca5438550d23089cef

2010-06-28 22:10:48 -07:00

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arm

cosmetics: trim trailing whitespace

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generic

Redo the forward 4x4 dct

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ppc

cosmetics: trim trailing whitespace

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x86

Improve the accuracy of forward walsh-hadamard transform

2010-06-28 22:10:48 -07:00

bitstream.c

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bitstream.h

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block.h

Redo the forward 4x4 dct

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boolhuff.c

cosmetics: trim trailing whitespace

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boolhuff.h

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dct.c

Improve the accuracy of forward walsh-hadamard transform

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dct.h

Redo the forward 4x4 dct

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encodeframe.c

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encodeintra.c

Redo the forward 4x4 dct

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encodeintra.h

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encodemb.c

Redo the forward 4x4 dct

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encodemb.h

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encodemv.c

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encodemv.h

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ethreading.c

Redo the forward 4x4 dct

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firstpass.c

Moved DOUBLE_DIVIDE_CHECK to denominator (was on numerator)

2010-06-21 15:20:52 +01:00

firstpass.h

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mcomp.c

vp8cx : bestsad declared and initialized incorrectly.

2010-06-24 14:30:48 -04:00

mcomp.h

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modecosts.c

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modecosts.h

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onyx_if.c

Redo the forward 4x4 dct

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onyx_int.h

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parms.cpp

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pickinter.c

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pickinter.h

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picklpf.c

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preproc.c

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psnr.c

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psnr.h

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quantize.c

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quantize.h

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ratectrl.c

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ratectrl.h

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rdopt.c

Redo the forward 4x4 dct

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rdopt.h

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sad_c.c

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ssim.c

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tokenize.c

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tokenize.h

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treewriter.c

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treewriter.h

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variance_c.c

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variance.h

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