RTSPSource: Do not update time when there are no tracks, i.e., when aborted.

        }

        if (!mAllTracksHaveTime) {

            bool allTracksHaveTime = true;

            bool allTracksHaveTime = (mTracks.size() > 0);

            for (size_t i = 0; i < mTracks.size(); ++i) {

                TrackInfo *track = &mTracks.editItemAt(i);

                if (track->mNTPAnchorUs < 0) {