Fuzzer finds fixedpoint failure.
Fuzzer finds fixedpoint failure.

A 32-bit number overflows. It's then capped to compute a 16-bit value.
This CL introduces a 64-bit variable on which equivalent operations are
performed instead.

Bug: chromium:864883
Change-Id: I371af869c6586256b900356491f467bed357e11d
Reviewed-on: https://webrtc-review.googlesource.com/89584
Reviewed-by: Sam Zackrisson <b1a93beadfe1d2f7f0106ee02b6ffcdc950aa103@webrtc.org>
Commit-Queue: Alex Loiko <999d0b481e5703ad7006f0848e249f8b2c3f29bd@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#24041}
ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc