Andreas Rheinhardt:
> The earlier code did not account for the frame header as well
> as the block headers; furthermore, in case a large part of
> a block is unused (due to padding), the output size may
> exceed 3 * width * height (where the dimensions correspond
> to the visible pixels) due to the
The earlier code did not account for the frame header as well
as the block headers; furthermore, in case a large part of
a block is unused (due to padding), the output size may
exceed 3 * width * height (where the dimensions correspond
to the visible pixels) due to the overhead of the zlib header,
