vf_pullup: simplify, fix double free error
wm4 authored
The memory allocation for f->diffs was freed multiple times in some
corner cases. Simplify the code so that this doesn't happen.
Signed-off-by: default avatarMichael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5b0ce5d4

)
Signed-off-by: default avatarMichael Niedermayer <michaelni@gmx.at>
81cfe391
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