switch GIF save to frame at a time
And make a new colormap if the frame average changes. This keeps memory use low, even for very large GIFs, though is somewhat slower.
See https://github.com/libvips/libvips/pull/2445
* Add jpeg restart_interval option.
This allows saving a jpeg with MCU restarts.
* Fix code style. Add description of restart_interval.
* Add a basic test based on output length.
* Update main change log.
We used to assume (in several places) that any source with a filename was
seekable. This patch adds a is_file test, and makes all the loaders use it.
see https://github.com/libvips/libvips/issues/2467
We were looping over pages, cropping each one out, and saving.
Now there's a single loop for thw whole of the image, so things like
percent reporting work in the obvious way.
See https://github.com/libvips/libvips/issues/2450
remove shutdown from atexit
Because atexit() can be called at almost any point during process termination,
including after worker threads have been force-quit, we can't use it for
cleanup.
New policy: use vips_shutdown() explicitly if you need to clean up,
though it's optional. Only use atexit() for leak checking.
* fic gtk-doc typenames in cgif
* fix flatten clipping
flatten could produce out of range values if max_alpha was less than
the limit of the numeric range of the format
https://github.com/libvips/libvips/issues/2431
* Ensure UBSan exits with a non-zero code on error
* Avoid misaligned member access in mosaic_fuzzer
* Add missing VIPS_CLIP in scRGB2sRGB/scRGB2BW
* Fix UBSan error in flatten
By using saturated casts for the int types (copied from vips_cast).
* CI: ensure fuzzer log is printed on error
* Avoid UB in heifload
* Revert flatten change
I could no longer reproduce this with clang 12 locally.
* Indentation fixes [skip ci]
Provides control over the maximum number of colours in the output
image palette, making the API more closely match that of pngsave.
Lowering the bitdepth to 7 (from the default value of 8), which
halves the maximum number of colours from 255 to 127, typically
reduces encoding time by ~20%.
* Simplify CI workflow
* CI: upgrade Ubuntu's Clang version to 12
* CI: upgrade macOS runner to version 11 (Big Sur)
* CI: temporarily disable the M1 runner
* CI: output test suite log upon failure
* CI: avoid brew update/upgrade steps
Since it may take a long time.
* CI: all jobs are supposed to succeed
* Fix test_descriptors.c failure after f8c2a36
Use a RANDOM image to create many crops from one source.
By making the sequential line cache non-persistent, and only minimising
when the read point is well past the image.
On large arrayjoin operations, this saves many GB of memory.
See https://github.com/kleisauke/net-vips/issues/135
arrayjoin with a sequential pipeline will now minimise inputs when they
are no longer being used. This drops the number of open file handles
needed to construct large arrays.
Sadly, memory savings are minimal.
see https://github.com/kleisauke/net-vips/issues/135
