# note: An ANMF chunk whose declared length is odd.
# expect: reject
# anim: reject
# info: reject
# roundtrip: no
# exercises: The padding rule, one layer in. A frame chunk always comes out
#   even -- its header is sixteen bytes and every sub-chunk inside it is
#   padded already -- so an odd length is a contradiction. The demuxer does
#   not test for it: it rounds the length up like any other chunk, and what
#   refuses the file is the pad byte left over at the end, one short of a
#   chunk header. webpinfo does test for it, by name -- "ANMF chunk size
#   should always be even".
chunk_size ANMF 37
frame
frame_duration 100
lossless
width 16
height 16
argb 0xff800000 x256