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Merge pull request #8645 from radarhere/mozjpeg

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Hugo van Kemenade 2025-01-08 18:44:21 +02:00 committed by GitHub
commit 6bce9aa461
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4 changed files with 39 additions and 5 deletions
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13
Tests/test_file_jpeg.py
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@ -281,7 +281,10 @@ class TestFileJpeg:
assert not im2.info.get("progressive")
assert im3.info.get("progressive")
assert_image_equal(im1, im3)
if features.check_feature("mozjpeg"):
assert_image_similar(im1, im3, 9.39)
else:
assert_image_equal(im1, im3)
assert im1_bytes >= im3_bytes
def test_progressive_large_buffer(self, tmp_path: Path) -> None:
@ -423,8 +426,12 @@ class TestFileJpeg:
im2 = self.roundtrip(hopper(), progressive=1)
im3 = self.roundtrip(hopper(), progression=1) # compatibility
assert_image_equal(im1, im2)
assert_image_equal(im1, im3)
if features.check_feature("mozjpeg"):
assert_image_similar(im1, im2, 9.39)
assert_image_similar(im1, im3, 9.39)
else:
assert_image_equal(im1, im2)
assert_image_equal(im1, im3)
assert im2.info.get("progressive")
assert im2.info.get("progression")
assert im3.info.get("progressive")

4
src/PIL/features.py
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@ -127,6 +127,7 @@ features: dict[str, tuple[str, str | bool, str | None]] = {
"fribidi": ("PIL._imagingft", "HAVE_FRIBIDI", "fribidi_version"),
"harfbuzz": ("PIL._imagingft", "HAVE_HARFBUZZ", "harfbuzz_version"),
"libjpeg_turbo": ("PIL._imaging", "HAVE_LIBJPEGTURBO", "libjpeg_turbo_version"),
"mozjpeg": ("PIL._imaging", "HAVE_MOZJPEG", "libjpeg_turbo_version"),
"zlib_ng": ("PIL._imaging", "HAVE_ZLIBNG", "zlib_ng_version"),
"libimagequant": ("PIL._imaging", "HAVE_LIBIMAGEQUANT", "imagequant_version"),
"xcb": ("PIL._imaging", "HAVE_XCB", None),
@ -300,7 +301,8 @@ def pilinfo(out: IO[str] | None = None, supported_formats: bool = True) -> None:
if name == "jpg":
libjpeg_turbo_version = version_feature("libjpeg_turbo")
if libjpeg_turbo_version is not None:
v = "libjpeg-turbo " + libjpeg_turbo_version
v = "mozjpeg" if check_feature("mozjpeg") else "libjpeg-turbo"
v += " " + libjpeg_turbo_version
if v is None:
v = version(name)
if v is not None:

16
src/_imaging.c
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@ -76,6 +76,13 @@
#ifdef HAVE_LIBJPEG
#include "jconfig.h"
#ifdef LIBJPEG_TURBO_VERSION
#define JCONFIG_INCLUDED
#ifdef __CYGWIN__
#define _BASETSD_H
#endif
#include "jpeglib.h"
#endif
#endif
#ifdef HAVE_LIBZ
@ -4367,6 +4374,15 @@ setup_module(PyObject *m) {
Py_INCREF(have_libjpegturbo);
PyModule_AddObject(m, "HAVE_LIBJPEGTURBO", have_libjpegturbo);
PyObject *have_mozjpeg;
#ifdef JPEG_C_PARAM_SUPPORTED
have_mozjpeg = Py_True;
#else
have_mozjpeg = Py_False;
#endif
Py_INCREF(have_mozjpeg);
PyModule_AddObject(m, "HAVE_MOZJPEG", have_mozjpeg);
PyObject *have_libimagequant;
#ifdef HAVE_LIBIMAGEQUANT
have_libimagequant = Py_True;

11
src/libImaging/JpegEncode.c
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@ -134,7 +134,16 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
return -1;
}
/* Compressor configuration */
/* Compressor configuration */
#ifdef JPEG_C_PARAM_SUPPORTED
/* MozJPEG */
if (!context->progressive) {
/* Do not use MozJPEG progressive default */
jpeg_c_set_int_param(
&context->cinfo, JINT_COMPRESS_PROFILE, JCP_FASTEST
);
}
#endif
jpeg_set_defaults(&context->cinfo);
/* Prevent RGB -> YCbCr conversion */