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author | Oleg Oshmyan <chortos@inbox.lv> | 2014-03-13 03:15:18 +0000 |
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committer | Oleg Oshmyan <chortos@inbox.lv> | 2015-02-10 04:42:35 +0200 |
commit | 0f367cc55086e46070e4c4cda9a1800176bed3c0 (patch) | |
tree | fac7afe0b15febf7ee5d30e8b5c44ba30ceeadbb /libass/ass_render_api.c | |
parent | 461ba65d18957aa20c686c22d4f73d930c602146 (diff) | |
download | libass-0f367cc55086e46070e4c4cda9a1800176bed3c0.tar.bz2 libass-0f367cc55086e46070e4c4cda9a1800176bed3c0.tar.xz |
Calculate \be using [0..64] value range (like VSFilter)
To avoid banding in the output, the full [0..255] value range
is restored before the last \be pass, which then uses the full
range and hides the bands by virtue of being a blur.
With this, our \be finally closely matches VSFilter's.
The only visible difference (other than the lack of banding) is
in clipping: we add proper padding and output the whole blurred
image, while VSFilter does not add any padding and hence clips
the blurred image too early.
Diffstat (limited to 'libass/ass_render_api.c')
0 files changed, 0 insertions, 0 deletions