mediaplayer: reset flags when pre-reading multiple buffers

Bug: 17521470
Change-Id: I15ee9b1d3dd4ad29f4961a642f7fadafd9fe5b24
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index bd67cbd..3eb87a4 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -1256,6 +1256,8 @@
 
             sp<ABuffer> buffer = mediaBufferToABuffer(mbuf, trackType, actualTimeUs);
             track->mPackets->queueAccessUnit(buffer);
+            formatChange = false;
+            seeking = false;
             ++numBuffers;
         } else if (err == WOULD_BLOCK) {
             break;