NuPlayer: add missing getSelectedTrack in CCDecoder

Test: cts
Bug: 119938763
Change-Id: I0dcc35ec65f0912d43aa5b0e3a797334d2581a78
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
index 5ea600f..b487c01 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
@@ -825,20 +825,31 @@
 
         case kWhatGetSelectedTrack:
         {
+            int32_t type32;
+            CHECK(msg->findInt32("type", (int32_t*)&type32));
+            media_track_type type = (media_track_type)type32;
+
+            size_t inbandTracks = 0;
             status_t err = INVALID_OPERATION;
+            ssize_t selectedTrack = -1;
             if (mCurrentSourceInfo.mSource != NULL) {
                 err = OK;
-
-                int32_t type32;
-                CHECK(msg->findInt32("type", (int32_t*)&type32));
-                media_track_type type = (media_track_type)type32;
-                ssize_t selectedTrack = mCurrentSourceInfo.mSource->getSelectedTrack(type);
-
-                PlayerMessage* reply;
-                CHECK(msg->findPointer("reply", (void**)&reply));
-                reply->add_values()->set_int32_value(selectedTrack);
+                inbandTracks = mCurrentSourceInfo.mSource->getTrackCount();
+                selectedTrack = mCurrentSourceInfo.mSource->getSelectedTrack(type);
             }
 
+            if (selectedTrack == -1 && mCCDecoder != NULL) {
+                err = OK;
+                selectedTrack = mCCDecoder->getSelectedTrack(type);
+                if (selectedTrack != -1) {
+                    selectedTrack += inbandTracks;
+                }
+            }
+
+            PlayerMessage* reply;
+            CHECK(msg->findPointer("reply", (void**)&reply));
+            reply->add_values()->set_int32_value(selectedTrack);
+
             sp<AMessage> response = new AMessage;
             response->setInt32("err", err);
 
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp
index e215965..a9f2104 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp
@@ -199,6 +199,18 @@
     return OK;
 }
 
+ssize_t NuPlayer2::CCDecoder::getSelectedTrack(media_track_type type) const {
+    if (mSelectedTrack != -1) {
+        CCTrack track = mTracks[mSelectedTrack];
+        if (track.mTrackType == kTrackTypeCEA608 || track.mTrackType == kTrackTypeCEA708) {
+            return (type == MEDIA_TRACK_TYPE_SUBTITLE ? mSelectedTrack : -1);
+        }
+        return (type == MEDIA_TRACK_TYPE_UNKNOWN ? mSelectedTrack : -1);
+    }
+
+    return -1;
+}
+
 bool NuPlayer2::CCDecoder::isSelected() const {
     return mSelectedTrack >= 0 && mSelectedTrack < (int32_t)getTrackCount();
 }
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.h b/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.h
index 57d5ea2..97834d1 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.h
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.h
@@ -38,6 +38,7 @@
     size_t getTrackCount() const;
     sp<AMessage> getTrackInfo(size_t index) const;
     status_t selectTrack(size_t index, bool select);
+    ssize_t getSelectedTrack(media_track_type type) const;
     bool isSelected() const;
     void decode(const sp<ABuffer> &accessUnit);
     void display(int64_t timeUs);