- Add 'scratch' field to gif that holds temporary 'scratch buffer' used for rendering frames
- For DISPOSE_BACKGROUND: Set background color to transparent instead of 0
- For DISPOSE_BACKGROUND: Write background pixels into scratch after rendering current frame, so it will be used in next frame
- For DISPOSE_PREVIOUS: Save frames that are not disposed into 'previous' field in gif, when DISPOSE_PREVIOUS is specified start with that previous frame. see http://webreference.com/content/studio/disposal.html
- Add "ANIMEXTS1.0" to Application Extension parser
- Graphic Control Extension parser refactor
- Compare file contents to expected images for animated gifs in foreign tests
We had a 1gb limit on the amount of data we would read from a pipe
before giving up.
This patch adds vips_pipe_read_limit_set() and makes this limit
configurable.
See: https://github.com/libvips/libvips/issues/1540
The --rotate flag no longer did anything, so add a new --no-rotate flag
connected to the new no-rotate property. --rotate is still there, but
hidden and does nothing.
-o was much easier to remember than -f, so flip back to -o. -f still
works, but is a hidden synonym.
--iprofile, --eprofile were hard to remember. Add --import-profile and
--export-profile synonyms. iprofile / eprofile are still there and still
work, but are hidden.
This GIF has dispose set to DISPOSAL_UNSPECIFIED and seems to mean
transparent.
This patch makes gifload use DISPOSAL_UNSPECIFIED as well as _DO_NOT to
mean reuse previous frame.
Thanks DarthSim.
See https://github.com/libvips/libvips/issues/1543
We were usingh a global lock for metadata changes, but some functions
triggered from callbacks in the metadata hash table could also attempt
to acquire the same mutex, leading to deadlock.
This patch gives metadata change it's own lock. Thanks DarthSim.
See https://github.com/libvips/libvips/issues/1542
