The following text was added to djvuchanges.txt recently:
The NAVM chunk format specification (section 8.3.3) states that each
bookmark encoding starts with a single byte specifying the number of
child bookmarks followed by three bytes specifying the bookmark
description text length in big-endian order. In order to allow more
complex document outlines, this format has been subtly changed: the
number of child bookmarks is now encoded as two bytes in small-endian
order, and the length of the description text is encoded as two bytes
in big-endian order.
This change results in the same encoding as long as there are less
than 256 child bookmarks and less that 65536 bytes in the bookmark
description text. Since it is unlikely that a description text
contains more than 64k characters, djvu files created with the
specified NAVM format are read correctly by a program implementing the
new NAVM format. However, djvu files created with the new NAVM format
and containing bookmark entries with more than 256 children will be
read incorrectly by a program that strictly implements the
specification.
sndjvu_format will have to deal with this somehow.
The following text was added to djvuchanges.txt recently:
sndjvu_format will have to deal with this somehow.