Documentation
VP8 Data Format and Decoding Guide
The Internet Engineering Task Force (IETF) published VP8 Data Format and Decoding Guide as RFC 6386 in November 2011.
WebM Multimedia Container Guidelines
- Complete text is available online.
RTP Payload Format for VP8 Video
https://tools.ietf.org/html/rfc7741
Encoder Parameters
Once you've built the reference encoder (vpxenc), you may want to try some of the encode parameters we've collected for common use cases.
The syntax shown here can serve as a model for ffmpeg encodes.