tree 9ebbf3668050cd4d4c1d380f328039c72990d478
parent e41b5f31148f9cfb7316295c900c7d3c695510b2
author Joshua J. Drake <android-open-source@qoop.org> 1428558402 -0500
committer Nick Kralevich <nnk@google.com> 1428623765 -0700

MPEG4Extractor: still more NULL dereference fixes

When processing various FourCC values within MP4 media, mLastTrack is accessed
without first ensuring that a track has been encoutered. Check for NULL and
bail out instead of crashing.

Bug: 20139950
Change-Id: Ie16687024d17348f576a0e13bd60bd4d6898de91