MPEG is working on a standard for Internet Video Coding. The aim is to develop a standard that includes a royalty free Baseline Profile, with performance that is comparable to the Baseline Profile of H.264/AVC.
The plan is to develop a final draft of the standard by July 2014. You can read the Call for Proposals here:
http://mpeg.chiariglione.org/standards/exploration/internet-video-coding/call-proposals-internet-video-coding-technology
and a draft of the Test Model (an early working version of the proposed standard) is available here:
http://mpeg.chiariglione.org/standards/exploration/internet-video-coding/internet-video-coding-test-model-itm-v-60
The Test Model includes familiar elements such as 16x16 macroblocks, a DCT-like transform and motion compensated prediction, with multiple reference pictures, bidirectional prediction and multi-hypothesis prediction.
We'll keep you posted as the IVC standard continues to develop.
- Iain Richardson