tree 2747a7d03940038c905134e28d90cb186eac5460
parent 3e0fd6db55a446aaef9a28c87922c0bb23c80c95
author Changyeon Jo <changyeon@google.com> 1623956676 -0700
committer Changyeon Jo <changyeon@google.com> 1624883010 +0000

Clear buffer references when a video stream stops

When CarEvsCameraPreviewActivity requests to stop a video stream
currently in use, it may hold references of delivered frame buffers that
are already invalidated by EvsManager.  These invalid buffer references
could break a frame buffer circulation if CarEvsCameraPreviewActivity is
resumed.

This CL addresses this issue by dropping all buffer references when
handleVideoStreamLocked() decides to stop a current video stream.

Bug: 187407895
Bug: 188076578
Test: Launches the preview activity and turns on and off the display by
      injecting power keyevent (26).
Change-Id: I41edb718fe11933730f484605b8ad15cfce0a9dc