When trying to convert a multi-page pdf to jpeg i got a pdf file
instead of a jpeg file. I figured that the pdf that worked was
a one-page pdf and the pdf that did not work was a two-page pdf.
My theory was that the two pages was loaded as to images in the
wand and that the format was set on the first page and it exported
the second page. And since the second page had the old format, it
was exported as a pdf.
Resetting the page iterator before exporting the image fixed the
bug, and the multi-page pdf was exported as a jpeg. The image that
was exported was just the first page, but it works for my usage.
get_image_page (MagickGetImagePage) is especially useful
for determining the overall dimensions of a GIF, which may have
frames with different widths and heights. In such cases,
get_image_width and get_image_height report the dimensions of
the last frame only.
Using the changes from @gadomski along with some additional work, to get the
generated bindings working again. Works on macOS and FreeBSD 11. A couple of
hacks are needed for FreeBSD, but nothing too serious.
Changed to use the libc prefix, and changed to use the generated enums.
Fixes#22, #15, and #14
cargo test passes
This method goes down to `MagickGetImagesBlob`, which allows for
creating animated gifs.
I didn't abstract out common operations between the two in the interest
of not overly polluting the codebase. However, this new method is almost
identical to `write_image_blob` so you could probably abstract something
out of there.
