Yaowu Xu d0dd01b8ce Redo the forward 4x4 dct ...

The new fdct lowers the round trip sum squared error for a
4x4 block ~0.12. or ~0.008/pixel. For reference, the old
matrix multiply version has average round trip error 1.46
for a 4x4 block.

Thanks to "derf" for his suggestions and references.

Change-Id: I5559d1e81d333b319404ab16b336b739f87afc79

2010-06-24 13:17:58 -07:00

..

csystemdependent.c

Redo the forward 4x4 dct

2010-06-24 13:17:58 -07:00