RESTRICT AUTOMERGE aac: fix initial timestamp

Use timestamp from the first non-empty work, not the very first one
which may be empty with an invalid timestamp.

Bug: 122218114
Bug: 121018382
Test: bug repro steps
Change-Id: I50f68765355b1fd3af4241adad0c6199fd7b4de8
2 files changed
tree: 1aa8fa30d650c59f4836c5fb261d76201fa95a06
  1. Android.bp
  3. codec2/
  4. hooks/
  5. media/