That's from the Royal Albert Hall in 2000 (as on The Who's DVD from that show). He's got a camera on his headstock which shows his playing close-up. Note how halfway through he uses his midrange control like a wah-wah while playing only with his left hand, then uses his detuner to shift between low E and D, then does his signature two-handed hammer-on typewriter tapping runs. This is done, of course, on his custom Status Graphite Buzzard bass, I assume played through his Digitech pre-amp and Ashdown rig.
