# note: A RIFF header claiming 11 bytes, one less than the smallest legal
#   value.
# expect: reject
# exercises: The "size < TAG_SIZE + CHUNK_HEADER_SIZE" test in ParseRIFF(): a
#   RIFF size must leave room for "WEBP" and one chunk header. 11 is the last
#   value that does not.
riff_size 11
width 32
height 32
yac_qi 30
macroblock
coeffs y2 -20
coeffs y[6] 1:4 -2
macroblock
intra_y_mode V_PRED
coeffs y2 12
macroblock count 2