Off-by-one skips last column in intraBC mesh search

[KuGua98]

In av2/encoder/mcomp.c, exhaustive_mesh_search() uses inclusive bounds for part_end_col:

for (c = part_start_col; c <= part_end_col; c += col_step)

But the scalar tail path currently iterates with:

for (i = 0; i < part_end_col - c; ++i)

This skips the candidate at c + i == part_end_col. When only one column remains, the loop does not run at all.

Suggested fix:

for (i = 0; i <= part_end_col - c; ++i)

[urvangjoshi]

Thanks for the report. Are you planning to submit a PR to fix this?

[urvangjoshi]

@msarwer2 @LuongQCT FYI

[KuGua98]

Thanks for the report. Are you planning to submit a PR to fix this?

OK, I will submit a PR to fix this