process all SEI messages for CC extraction

bug: 19297083
Change-Id: I5b89e35cc2bd5fb2f332872941e7978f15a6f403
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h
index 5e06f4e..77fb0fe 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.h
@@ -49,6 +49,7 @@
     bool isTrackValid(size_t index) const;
     int32_t getTrackIndex(size_t channel) const;
     bool extractFromSEI(const sp<ABuffer> &accessUnit);
+    bool parseSEINalUnit(int64_t timeUs, const uint8_t *nalStart, size_t nalSize);
     sp<ABuffer> filterCCBuf(const sp<ABuffer> &ccBuf, size_t index);
 
     DISALLOW_EVIL_CONSTRUCTORS(CCDecoder);