static const ID4 PCP_CHAN_INFO = "info";
static const ID4 PCP_CHAN_INFO_TYPE = "type";
+static const ID4 PCP_CHAN_INFO_STREAMTYPE = "styp";
+static const ID4 PCP_CHAN_INFO_STREAMEXT = "sext";
static const ID4 PCP_CHAN_INFO_BITRATE = "bitr";
static const ID4 PCP_CHAN_INFO_GENRE = "gnre";
static const ID4 PCP_CHAN_INFO_NAME = "name";