A Python module to deal with APNG file.
- Merge multiple images into one APNG file. (It use Pillow to convert images into PNG format)
- Read APNG file and extract each frames into PNG file.
- It doesn't do any optimization but only concat the images. This might be changed in the future.
- Pillow - Optional. You can still use pyAPNG without PIL but it can only read PNG files.
- pngcheck
- See requirements.txt for other dev-dependencies.
From pypi:
pip install apngConvert a series of images into APNG animation:
from apng import APNG
APNG.from_files(["1.jpg", "2.jpg", "3.jpg"], delay=100).save("result.png")Use different delays:
from apng import APNG
files = [
("1.jpg", 100),
("2.jpg", 200),
("3.jpg", 300)
]
im = APNG()
for file, delay in files:
im.append_file(file, delay=delay)
im.save("result.png")Extract frames from an APNG file:
from apng import APNG
im = APNG.open("animation.png")
for i, (png, control) in enumerate(im.frames):
png.save("{i}.png".format(i=i))Add a text chunk to the PNG file:
from apng import PNG, make_text_chunk
im = PNG.open("image.png")
im.chunks.append(make_text_chunk(key="Comment", value="Some text"))
im.save("image.png")If you want to convert some large JPGs into animation, the library has to convert your JPGs into PNGs then merge them into a single animation APNG file. The problems are:
- It is extremely slow.
- The file size of the APNG is extremely large. Probably 5x of the original or more.
In this case, I suggest trying an animation format called "ugoira", which is implemented by Pixiv.net. There is also an image viewer named "HoneyView" which can view it locally.
http://pyapng.readthedocs.io/en/latest/
- Add optimizer?
- 0.3.4 (Mar 11, 2020)
- Fix: exclude test files from the package.
- 0.3.3 (Feb 11, 2019)
- Fix: failed to extract frames containing multiple
fdATchunks.
- Fix: failed to extract frames containing multiple
- 0.3.2 (Jul 20, 2018)
- Add:
make_text_chunkfunction. - Add:
Chunkdata class. - Change: now
parse_chunksyieldsChunkinstead of a tuple. This should be safe sinceChunkis a namedtuple.
- Add:
- 0.3.1 (May 13, 2018)
- Add: universal wheel.
- 0.3.0 (May 13, 2018)
- Support Python 2.
- Add: PNG method
open_any,from_bytes. - Add: APNG method
append_file,from_bytes. - Add: module function
parse_chunks. - Drop: module function `is_png` and `chunks`.
- Change: `PNG.open` now only reads PNG images. To read non-PNG images, use `PNG.open_any`.
- Change: `APNG.append` now only accepts `PNG` instance. To append PNG files, use `APNG.append_file`.
- 0.2.1 (Apr 19, 2018)
- Add: support num_plays. (#4)
- 0.2.0 (Dec 8, 2017)
- 0.1.0 (May 30, 2016)
- First release.
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