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Internet Video Codec (netvc) (WG)

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Applications and Real-Time Area Area Director(s):

Assigned Area Director


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Charter (as of 2015-05-18):


This WG is chartered to produce a high-quality video codec that meets the following conditions:

1. Is competitive (in the sense of having comparable or better performance) with current video codecs in widespread use.

2. Is optimized for use in interactive web applications.

3. Is viewed as having IPR licensing terms that allow it to be widely implemented and deployed.

To elaborate, this video codec will need to be commercially interesting to implement by being competitive with the video codecs in widespread use at the time it is finalized.

This video codec will need to be optimized for the real-world conditions of the public, best-effort Internet. It should include, but may not be limited to, the ability to support fast and flexible congestion control and rate adaptation, the ability to quickly join broadcast streams and the ability to be optimized for captures of content typically shared in interactive communications.

The objective is to produce a video codec that can be implemented, distributed, and deployed by open source and closed source software as well as implemented in specialized hardware.

The working group shall heed the preference stated in BCP 79: "In general, IETF working groups prefer technologies with no known IPR claims or, for technologies with claims against them, an offer of royalty-free licensing." In keeping with this BCP, the WG will prefer algorithms or tools where there are verifiable reasons to believe they are available on an royalty-free (RF) basis. In developing the codec specification, the WG may consider information concerning old prior art or the results of research indicating royalty-free availability of particular techniques. Note that the preference stated in BCP 79 cannot guarantee that the working group will produce an IPR unencumbered codec.


The core technical considerations for such a codec include, but are not necessarily limited to, the following:

1. High compression efficiency that is competitive with existing popular video codecs.

2. Reasonable computational complexity that permits real-time operation on existing, popular hardware, including mobile devices, and efficient implementation in new hardware designs.

3. Use in interactive real-time applications, such as point-to-point video calls, multi-party video conferencing, telepresence, teleoperation, and in-game video chat.

4. Resilient in the real-world transport conditions of the Internet, such as the flexibility to rapidly respond to changing bandwidth availability and loss rates, etc.

5. Integratable with common Internet applications and Web APIs (e.g., the HTML5