# note: An ANIM chunk of two bytes.
# expect: reject
# anim: reject
# info: reject
# exercises: The other side of anim-anim-chunk-padded. The demuxer treats
#   six bytes as the minimum an ANIM chunk may be and refuses anything
#   shorter outright, because the background colour and loop count it is
#   about to read are not there. Longer is tolerated; shorter is not.
payload ANIM 0011
frame
frame_duration 100
lossless
width 16
height 16
argb 0xff800000 x256