Well, I can tell you the obvious stuff.
Canon in D is a very popular chord progression. Uses a lot of perfect fifths.
Chord progression is as follows:
||D A|Bm F#m|G D|G A||
However, he may title his post Canon in D, but his key is actually G, unless I've gone COMPLETELY and ABSOLUTELY insane, his first bass note is a G, and his second note is a D. So:
||G D|Em Bm|C G|C D||
So for the first part of that video, he just plays the bass notes. That is,
Code:
|------------------------------|
|------------------------------|
|10----------------------------|
|---10-12-7-8-3-8-10-----------|
He starts to get a little more complicated, playing root, fifth and octave. That's a power chord, if anyone's wondering.
Code:
|----12--------------------------------------|
|--12------12----14--9---10--5---10----12----|
|10------12----14---9--10---5--10----12------|
|------10----12----7--8----3--8----10--------|
Then he double thumbs it, Wooten style.
That's all I can really say right now. I'm sure you've figured that out already, but just a reference for everyone.