FP2-1667: DO NOT MERGE Added few memsets to avoid uninitiali

DO NOT MERGE Added few memsets to avoid uninitialized reads for error clips

Also aligned few allocations to 4 byte boundary

Bug: 25070493
Bug: 24686670
Change-Id: I59c996161053e313c873381c5bf6f8c36488483f
(cherry picked from commit b9f7c2c45c6fe770b7daffb9a4e61522d1f12d51)
2 files changed