# note: The two reserved bits of the ALPH header byte set.
# expect: reject
# exercises: The "rsrv != 0" arm of the same test. Unlike VP8X, whose
#   reserved bits ride through untouched, ALPH refuses a header with anything
#   in its top two bits.
chunks VP8X ALPH VP8
alpha 1
alph_reserved 3
width 16
height 16
yac_qi 30
macroblock
coeffs y2 -20
coeffs y[2] 1:5 -3