Interface - CODECs Codec is a portmanteau of coder-decoder. A codec encodes a data stream or a signal for transmission and storage, possibly in encrypted form, and the decoder function reverses the encoding for playback or editing. Codecs are used in videoconferencing, streaming media, and video editing applications. CODECs are in stock at Tenco Electronics. Tenco offers inventory, pricing, & datasheets for CODECs. To know more, please view our large section of CODECs below.