fix codec buffer leak in error handling when timestamp goes backward

don't touch codec buffer if we decided to drop a frame with bad pts

Bug: 11971963
Change-Id: I9b4c56210f64258f1be257b14184381a1133e0d6
(cherry picked from commit b63d2433350d56bda9f3477549086c90bb6d535e)
1 file changed