commit befcc42572b88c6ff983d1000fa4eddc4bb41f26
author David Barker <david.barker@argondesign.com> Tue Jan 31 09:42:10 2017 +0000
committer Debargha Mukherjee <debargha@google.com> Sun Feb 12 10:32:52 2017 +0000
tree 901dfb5c4258b40ca2f788b23becf9af695bf913
parent b05e5d10ce310e348a8f6df5b4f276fdadb2b30d

Fix segfault with loop-restoration on x86.

The WienerInfo struct requires a 16-byte alignment on x86,
since it contains filter coefficients which are loaded using
SSE aligned load instructions. But on 32-bit x86, the default
alignment of aom_malloc/aom_realloc is only 8 bytes, leading
to occasional segfaults.

To fix this, rather than using aom_realloc to resize WienerInfo
structures, we always free and re-allocate them using aom_memalign

BUG=aomedia:345

Change-Id: Ib1b2a42d4a2fa215dcc81ea481c51271ab068a37