Alongside this main specification, the Media Working Group also published two First Public Working Drafts to establish a registry for WebCodecs:
- The WebCodecs Codec Registry is intended to enhance interoperability among implementations and users of WebCodecs. In particular, this registry provides the means to identify and avoid collisions among codec strings and provides a mechanism to define codec-specific members of WebCodecs codec configuration dictionaries.
- The AVC (H.264) WebCodecs Registration is the first entry in the registry. It describes, for AVC (H.264), (1) the fully qualified codec strings, (2) the
VideoDecoderConfig.descriptionbytes, and (3) the codec-specific extensions to the