Method isScrubbing

tests/VideoCacheThread.cpp:45–45

    void    setLastDir(int d) { last_dir.store(d); }
    void    forceUserSeekFlag() { userSeeked.store(true); }
    bool    isScrubbing() const { return scrub_active.load(); }
    bool    getUserSeekedFlag() const { return userSeeked.load(); }
    bool    getPrerollOnNextFill() const { return preroll_on_next_fill.load(); }
    bool    getClearCacheOnNextFill() const { return clear_cache_on_next_fill.load(); }