Utiliser imgp sur macOS avec Docker

Introduction

Lorsque j'ai essayé d'utiliser imgp qui est un outil CLI pour le traitement d'images en Python sur macOS (M3), l'installation d'imgp a échoué comme suit.

clang: warning: argument unused during compilation: '-msse4' [-Wunused-command-line-argument]
src/libImaging/AlphaComposite.c:28:5: error: use of undeclared identifier '__m128i'
    __m128i mm_max_alpha = _mm_set1_epi32(255);
    ^
src/libImaging/AlphaComposite.c:29:5: error: use of undeclared identifier '__m128i'
    __m128i mm_max_alpha2 = _mm_set1_epi32(255 * 255);
    ^
src/libImaging/AlphaComposite.c:30:5: error: use of undeclared identifier '__m128i'
    __m128i mm_zero = _mm_setzero_si128();
    ^
src/libImaging/AlphaComposite.c:31:5: error: use of undeclared identifier '__m128i'
    __m128i mm_half = _mm_set1_epi16(128);
    ^
src/libImaging/AlphaComposite.c:32:5: error: use of undeclared identifier '__m128i'
    __m128i mm_get_lo = _mm_set_epi8(
    ^
src/libImaging/AlphaComposite.c:34:5: error: use of undeclared identifier '__m128i'
    __m128i mm_get_hi = _mm_set_epi8(
    ^
src/libImaging/AlphaComposite.c:137:13: error: use of undeclared identifier '__m128i'
            __m128i mm_dst, mm_dst_lo, mm_dst_hi;
            ^
src/libImaging/AlphaComposite.c:138:13: error: use of undeclared identifier '__m128i'
            __m128i mm_src, mm_src_hi, mm_src_lo;
            ^
src/libImaging/AlphaComposite.c:139:13: error: use of undeclared identifier '__m128i'
            __m128i mm_dst_a, mm_src_a, mm_out_a, mm_blend;
            ^
src/libImaging/AlphaComposite.c:140:13: error: use of undeclared identifier '__m128i'
            __m128i mm_coef1, mm_coef2, mm_out_lo, mm_out_hi;
            ^
src/libImaging/AlphaComposite.c:143:13: error: use of undeclared identifier 'mm_dst'
            mm_dst = _mm_loadu_si128((__m128i *) &dst[x]);
            ^
src/libImaging/AlphaComposite.c:143:22: error: call to undeclared function '_mm_loadu_si128'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
            mm_dst = _mm_loadu_si128((__m128i *) &dst[x]);
                    ^
src/libImaging/AlphaComposite.c:143:48: error: expected expression
            mm_dst = _mm_loadu_si128((__m128i *) &dst[x]);
                                                ^
src/libImaging/AlphaComposite.c:143:39: error: use of undeclared identifier '__m128i'
            mm_dst = _mm_loadu_si128((__m128i *) &dst[x]);
                                    ^
src/libImaging/AlphaComposite.c:145:13: error: use of undeclared identifier 'mm_dst_lo'
            mm_dst_lo = _mm_unpacklo_epi8(mm_dst, mm_zero);
            ^
src/libImaging/AlphaComposite.c:145:25: error: call to undeclared function '_mm_unpacklo_epi8'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
            mm_dst_lo = _mm_unpacklo_epi8(mm_dst, mm_zero);
                        ^
src/libImaging/AlphaComposite.c:145:43: error: use of undeclared identifier 'mm_dst'
            mm_dst_lo = _mm_unpacklo_epi8(mm_dst, mm_zero);
                                        ^
src/libImaging/AlphaComposite.c:145:51: error: use of undeclared identifier 'mm_zero'
            mm_dst_lo = _mm_unpacklo_epi8(mm_dst, mm_zero);
                                                ^
src/libImaging/AlphaComposite.c:147:13: error: use of undeclared identifier 'mm_dst_hi'
            mm_dst_hi = _mm_unpackhi_epi8(mm_dst, mm_zero);
            ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
error: command '/usr/bin/clang' failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for pillow-simd
Failed to build pillow-simd
ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (pillow-simd)

Cette erreur est un problème connu comme ci-dessous.

https://github.com/uploadcare/pillow-simd/issues/43

Solution

La construction sur macOS (M3) n'est pas prise en charge, j'ai donc essayé d'installer imgp à l'aide de Docker. Le processus d'installation est décrit ci-dessous.

(1) Démarrer le conteneur Docker

docker run-v $PWD:/work --rm --platform linux/amd64 -it python:3.12-slim /bin/bash

(2) Installer des packages pour la construction

apt update
apt install build-essential zlib1g-dev libjpeg-dev

(3) Installer imgp

pip install imgp

(4) Vérifier le binaire installé

root@cc0fa40c9237:~# imgp
usage: imgp [-h] [-x res] [-o deg] [-a] [-c] [-e] [-f] [-H] [-i] [-k] [-m] [-M res] [-n] [-N] [-O] [-P] [-q N] [-r] [-s byte] [-w] [-d] [PATH ...]

Resize, rotate JPEG and PNG images.

positional arguments:
  PATH                  source file or dir [default: current dir]

options:
  -h, --help            show this help message and exit
  -x res, --res res     output resolution in HxV or percentage
  -o deg, --rotate deg  rotate clockwise by angle (in degrees)
  -a, --adapt           adapt to resolution by orientation [default: off]
  -c, --convert         convert PNG to JPG format [default: off]
  -e, --eraseexif       erase exif metadata [default: off]
  -f, --force           force to exact specified resolution [default: off]
  -H, --hidden          include hidden (dot) files [default: off]
  -i, --includeimgp     re-process _IMGP files. * RISKY: refer to docs
  -k, --keep            skip (honors -c or --pr) images matching specified
                        H or V or --res=100 [default: off]
  -m, --mute            operate silently [default: informative]
  -M res, --minres res  min resolution in HxV or percentage of --res to resize
  -n, --enlarge         enlarge smaller images [default: off]
  -N, --nearest         use nearest neighbour interpolation for PNG [default: antialias]
  -O, --optimize        optimize the output images [default: off]
  -P, --progressive     save JPEG images as progressive [default: off]
  -q N, --quality N     quality factor (N=1-95, JPEG only) [default: 75]
  -r, --recurse         process non-symbolic dirs recursively [default: off]
  -s byte, --size byte  minimum size to process an image [default: 1024]
  -w, --overwrite       overwrite source images [default: off]
  -d, --debug           enable debug logs [default: off]

Version 2.9
Copyright © 2016-2023 Arun Prakash Jana <engineerarun@gmail.com>
License: GPLv3
Webpage: https://github.com/jarun/imgp

Note

$ uname -a
Darwin weizen.local 23.4.0 Darwin Kernel Version 23.4.0: Wed Feb 21 21:45:48 PST 2024; root:xnu-10063.101.15~2/RELEASE_ARM64_T8122 arm64

$ docker -v
Docker version 26.1.1, build 4cf5afa

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