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Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
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12
docs/handbook/image-file-formats.rst
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@ -27,15 +27,15 @@ Fully supported formats
AVIF AVIF
^^^^ ^^^^
Pillow reads and writes AVIF files, including AVIF sequence images. Currently, Pillow reads and writes AVIF files, including AVIF sequence images.
it is only possible to save 8-bit AVIF images, and all AVIF images are decoded It is only possible to save 8-bit AVIF images, and all AVIF images are decoded
as 8-bit RGB(A). as 8-bit RGB(A).
The :py:meth:`~PIL.Image.Image.save` method supports the following options: The :py:meth:`~PIL.Image.Image.save` method supports the following options:
**quality** **quality**
Integer, 0-100, defaults to 75. 0 gives the smallest size and poorest Integer, 0-100, defaults to 75. 0 gives the smallest size and poorest
quality, 100 the largest and best quality. quality, 100 the largest size and best quality.
**subsampling** **subsampling**
If present, sets the subsampling for the encoder. Defaults to ``4:2:0``. If present, sets the subsampling for the encoder. Defaults to ``4:2:0``.
@ -47,14 +47,14 @@ The :py:meth:`~PIL.Image.Image.save` method supports the following options:
* ``4:4:4`` * ``4:4:4``
**speed** **speed**
Quality/speed trade-off (0=slower-better, 10=fastest). Defaults to 6. Quality/speed trade-off (0=slower/better, 10=fastest). Defaults to 6.
**max_threads** **max_threads**
Limit the number of active threads used. By default, there is no limit. If the aom Limit the number of active threads used. By default, there is no limit. If the aom
codec is used, there is a maximum of 64. codec is used, there is a maximum of 64.
**range** **range**
YUV range, either "full" or "limited". Defaults to "full" YUV range, either "full" or "limited". Defaults to "full".
**codec** **codec**
AV1 codec to use for encoding. Specific values are "aom", "rav1e", and AV1 codec to use for encoding. Specific values are "aom", "rav1e", and
@ -315,7 +315,7 @@ following options are available::
**append_images** **append_images**
A list of images to append as additional frames. Each of the A list of images to append as additional frames. Each of the
images in the list can be single or multiframe images. images in the list can be single or multiframe images.
This is currently supported for AVIF, GIF, PDF, PNG, TIFF and WebP. This is supported for AVIF, GIF, PDF, PNG, TIFF and WebP.
It is also supported for ICO and ICNS. If images are passed in of relevant It is also supported for ICO and ICNS. If images are passed in of relevant
sizes, they will be used instead of scaling down the main image. sizes, they will be used instead of scaling down the main image.

2
src/PIL/AvifImagePlugin.py
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@ -230,7 +230,7 @@ def _save(
is_single_frame = total == 1 is_single_frame = total == 1
try: try:
for ims in [im] + append_images: for ims in [im] + append_images:
# Get # of frames in this image # Get number of frames in this image
nfr = getattr(ims, "n_frames", 1) nfr = getattr(ims, "n_frames", 1)
for idx in range(nfr): for idx in range(nfr):