[automerger skipped] Use index mask when there is no valid input mask from...

[automerger skipped] Use index mask when there is no valid input mask from output mask. am: 3e1b3e70 -s ours am: 07f32b58 -s ours

am skip reason: Merged-In Ie6b5d80899a7eeea1fcb88fcdf8cd50bc1a97321 with SHA-1 faa67ff6 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/20520697



Change-Id: I9207afe0e89ebe24071161c2c7f96fa35c786851
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>