Also, the Main Daala page has more links, including the "Intro to Video" series, which is rather more than an intro and is a good read. It's a broad survey of modern video coding.
Now, a big raw dump of emails between me, ryg, and JM Valin. I'm gonna try to color them to make it a bit easier to follow. Thusly :
And this all starts with me being not very clear on PVQ so the beginning is a little fuzzy.
I will be following this up with a "summary of PVQ as I now understand it" which is probably more useful for most people. So, read that, not this.
(also jebus the internet is rindoculuos. Can I have BBS's back? Like literally 1200 baud text is better than the fucking nightmare that the internet has become. And I wouldn't mind playing a little Trade Wars once a day...)