# note: An uncompressed plane 44 bytes longer than the picture needs.
# expect: ok
# exercises: ALPHInit() tests "alpha_data_size >= alpha_decoded_size", so a
#   plane may be longer than width by height and the tail is simply never read.
#   The boundary partner of alph-raw-short.
chunks VP8X ALPH VP8
alpha 1
alph_raw 300
width 16
height 16
yac_qi 30
macroblock
coeffs y2 -20
coeffs y[2] 1:5 -3