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In 16x8 motion compensation, for lower 16x8 region, the input to mpeg_motion() for motion_y was "motion_y + 16", which causes wrong rounding. For 4:2:0, chroma scaling for y is dividing by two and rounding toward zero. When motion_y < 0 and motion_y + 16 > 0, the rounding direction of "motion_y" and "motion_y + 16" is different and rounding "motion_y + 16" would be incorrect. We should input "motion_y" as is to round correctly. I add "is_16x8" flag to do that. Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> |
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.. | ||
api | ||
checkasm | ||
fate | ||
filtergraphs | ||
ref | ||
.gitignore | ||
audiogen.c | ||
audiomatch.c | ||
base64.c | ||
copycooker.sh | ||
extended.ffconcat | ||
fate-run.sh | ||
fate-valgrind.supp | ||
fate.sh | ||
lavf-regression.sh | ||
Makefile | ||
md5.sh | ||
refcmp-metadata.awk | ||
reference.pnm | ||
regression-funcs.sh | ||
rotozoom.c | ||
simple1.ffconcat | ||
simple2.ffconcat | ||
test.ffmeta | ||
tiny_psnr.c | ||
tiny_ssim.c | ||
utils.c | ||
videogen.c |