Harrow Media VDO
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Company: Harrow Media Extension: vdo
This is a simple RLE-based animation format used in their promotional game.
File starts with the following header (all values are little-endian):
"Artform\0" 16-bit version (0 or 1) 16-bit width 16-bit height 16-bit unknown (usually zero) 768-byte palette
Then frame data with the following header follows:
32-bit zero 16-bit current frame width 16-bit current frame height 32-bit unknown 32-bit frame size
Frame data is split into line data, each one starting with 16-bit size and with the following RLE scheme: each opcode has length stored in its low six bits and actual operation in top two bits (0 = run, 1 = copy, other values are forbidden).