static std::string TIMED_TEXT_PACKAGE_LABEL = "File Package: SMPTE 429-5 clip wrapping of D-Cinema Timed Text data";
static std::string TIMED_TEXT_DEF_LABEL = "Timed Text Track";
static std::string TIMED_TEXT_PACKAGE_LABEL = "File Package: SMPTE 429-5 clip wrapping of D-Cinema Timed Text data";
static std::string TIMED_TEXT_DEF_LABEL = "Timed Text Track";