packettrailer

func StripTrailer ¶

func StripTrailer(payload []byte, isEndOfFrame bool) int

StripTrailer returns the number of bytes to strip from the end of an RTP payload if it contains an LKTS trailer. The trailer is located by checking for the "LKTS" magic suffix and then reading the XORed trailer_len byte immediately before it. isEndOfFrame must be set only for packets ending an encoded frame, i. e. where a trailer could have been appended. Returns 0 if absent or ineligible.