Crash when fast forward video

[sharkhuang]

2.2 develop branch.
User case: play several videos consecutive as playlist. customize media player to control moving forward or backward, which means customize seekto() function to find position cross the videos. Crash happens when call seekTo(int sourceIndex, long positionMs) .

                                                                                java.lang.NullPointerException: Attempt to get length of null array
                                                                                    at com.google.android.exoplayer2.extractor.ExtractorSampleSource.getExtractedSamplesCount(ExtractorSampleSource.java:543)
                                                                                    at com.google.android.exoplayer2.extractor.ExtractorSampleSource.onLoadError(ExtractorSampleSource.java:428)
                                                                                    at com.google.android.exoplayer2.extractor.ExtractorSampleSource.onLoadError(ExtractorSampleSource.java:62)
                                                                                    at com.google.android.exoplayer2.upstream.Loader$LoadTask.handleMessage(Loader.java:393)
                                                                                    at android.os.Handler.dispatchMessage(Handler.java:102)
                                                                                    at android.os.Looper.loop(Looper.java:148)
                                                                                    at android.os.HandlerThread.run(HandlerThread.java:61)
                                                                                    at com.google.android.exoplayer2.util.PriorityHandlerThread.run(PriorityHandlerThread.java:40)

[andrewlewis]

This should be fixed in dev-v2. There is still a known issue relating seeking and reuse of MediaPeriods which will likely be fixed in the next push. Thanks.