mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2026-10-28 18:15:24 +08:00
Hao Chen
b5914511d4
The channel count passed as a 32-bit register (w3) is later used
as a 64-bit register (x3) for pointer offsets without proper sign
extension, resulting in misbehavior. This commit adds an explicit
sxtw instruction to ensure the channel count is properly sign-extended.
Additionally, standardizes the use of the 32-bit w2 and w12 registers
in the core length logic across functions to prevent sign extension
issues with lengths without relying on explicit 64-bit casting, matching
expected input bounds tracking.
Signed-off-by: Hao Chen <haochenc@google.com>
(cherry picked from commit 88ae625e69)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>