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257 Commits

Author SHA1 Message Date
Hugo van Kemenade
43b2f61e79 Add 'from __future__ import annotations' using Ruff/isort 2023-12-21 13:13:31 +02:00
Benjamin Gilbert
14146732be Clarify JPEG tests for default/invalid subsampling 
-1 is the default; 3 is invalid and should behave the same as the default.
 2023-12-13 18:26:35 -06:00
Andrew Murray
f90827dfc8 Rearranged subsampling assertions 2023-12-13 18:26:35 -06:00
Benjamin Gilbert
4b422db243 Add keep_rgb option to prevent RGB -> YCbCr conversion during JPEG write 
libjpeg automatically converts RGB to YCbCr by default.  Add a keep_rgb
option to disable libjpeg's automatic conversion of RGB images during
write.
 2023-12-13 18:26:35 -06:00
Andrew Murray
4b308dc2bf
Merge pull request #7488 from bgilbert/jpeg-restart 
Allow configuring JPEG restart marker interval on save
 2023-11-14 23:42:50 +11:00
Benjamin Gilbert
e572722479 Allow configuring JPEG restart marker interval on save 
libjpeg allows specifying the marker interval either in MCU blocks or in
MCU rows.  Support both, via separate parameters, rather than requiring
callers to do the math.

Co-authored-by: Andrew Murray <radarhere@users.noreply.github.com>
 2023-10-31 17:47:25 -05:00
Andrew Murray
e10a58ccce Concatenate multiple EXIF markers 2023-10-26 21:46:38 +11:00
Benjamin Gilbert
4d7372bfd0 Implement streamtype=1 option for tables-only JPEG encoding 
We already support streamtype=2 to skip producing JPEG tables, but
streamtype=1, which skips everything but the tables, was never implemented.
The streamtype=1 stub code dates to Git pre-history, so it's not
immediately clear why.  Implement the missing support.

jpeg_write_tables() can't resume after a full output buffer (it fails with
JERR_CANT_SUSPEND), so it might seem that Pillow needs to pre-compute the
necessary buffer size.  However, in the normal case of producing an
interchange stream, the tables are written via the same libjpeg codepath
during the first jpeg_write_scanlines() call, and table writes aren't
resumable there either.  Thus, any buffer large enough for the normal case
will also be large enough for a tables-only file.

The streamtype option isn't documented and this commit doesn't change that.
It does add a test though.

Co-authored-by: Andrew Murray <radarhere@users.noreply.github.com>
 2023-10-24 20:30:45 -05:00
Andrew Murray
7319d86328 Catch struct.error from truncated EXIF when reading DPI 2023-10-12 10:13:46 +11:00
Andrew Murray
a3fd009875 Match warning message 2023-10-06 17:31:06 +11:00
Andrew Murray
f24222a954 Merge branch 'main' into jpeg_xmp 2023-10-06 17:23:53 +11:00
Andrew Murray
0a28840bc4 Expand buffer size when optimizing or progressive 2023-08-19 14:34:08 +10:00
Andrew Murray
3f78ba80f9 Do not require curly bracket in tag name 2023-07-10 22:05:28 +10:00
Andrew Murray
2488167f33 Allow for zero-byte padding at end of XMP data 2023-07-10 22:00:30 +10:00
Matthew Treinish
6215cd3e0f
Update tests to handle no longer raising 2023-07-06 09:28:35 -04:00
Andrew Murray
93e507294b Only assert image is similar 2023-05-05 08:19:43 +10:00
Ishant Mrinal Haloi
5377b0735f add _repr_jpg_ for ipython display 
Signed-off-by: Ishant Mrinal Haloi <mrinal.haloi11@gmail.com>
 2023-05-04 21:43:57 +05:30
Hugo van Kemenade
52f4fc59a2 Remove JpegImagePlugin.convert_dict_qtables, deprecated in 8.3.0 2023-04-06 16:11:36 +03:00
Hugo van Kemenade
d2e77de070
Merge pull request #6853 from radarhere/child_images 
Relaxed child images check to allow for libjpeg
 2023-02-12 07:26:18 +02:00
Andrew Murray
bb524018d3 Raise an error when EXIF data is too long 2023-02-11 16:20:27 +11:00
pre-commit-ci[bot]
24183d652e [pre-commit.ci] auto fixes from pre-commit.com hooks 
for more information, see https://pre-commit.ci
 2023-02-06 19:27:19 +00:00
Andrew Murray
97385d7cc7 Relaxed child images check to allow for libjpeg 2023-01-02 19:54:12 +11:00
Andrew Murray
5257d561c0
Merge pull request #6748 from radarhere/exif_ifd 
Added IFD enum to ExifTags
 2022-12-14 07:33:14 +11:00
Andrew Murray
c2a42655e1 Allow get_child_images to access JPEG thumbnails 2022-12-06 19:30:53 +11:00
Sam Mason
1ed1a3a971
make sure passing a blank comment removes existing comment 2022-12-03 15:07:37 +00:00
Andrew Murray
525c01143a Test that comment is reread 2022-12-03 09:59:22 +11:00
pre-commit-ci[bot]
e9f4858491 [pre-commit.ci] auto fixes from pre-commit.com hooks 
for more information, see https://pre-commit.ci
 2022-12-02 18:07:10 +00:00
Sam Mason
d822d85af6
support round-tripping JPEG comments 2022-12-02 17:57:19 +00:00
Mark Mayo
69baeccf2e some pylint warnings 
Fixed some pylint issues
 2022-10-13 15:20:11 +13:00
Andrew Murray
c259ac492f Parametrized tests 2022-10-03 16:57:42 +11:00
Hugo van Kemenade
d42efd7ec0
Update URL (#16) 2022-04-28 08:26:57 +10:00
Andrew Murray
ae8de77721 Raise ValueError when trying to save empty image 2022-03-28 21:18:53 +11:00
Andrew Murray
dae1f691c2 Updated checks that no warnings were raised 2022-02-21 13:49:01 +11:00
Andrew Murray
f8e4e9c2dd Added enums 2022-01-15 09:02:31 +11:00
Andrew Murray
1059eb5376 If appended EOI did not work, do not keep trying 2022-01-01 21:04:32 +11:00
Hugo van Kemenade
31a96b9c9b Upgrade Python syntax with pyupgrade --py36-plus and format with Black 2021-10-19 15:34:52 +03:00
Andrew Murray
98aa0f10ad pre-commit autoupdate --freeze 2021-08-12 21:50:09 +10:00
Alexander Karpinsky
3abe5e884b Add TypeError handling to pass corrupted dpi value in exif 2021-07-26 16:13:01 +03:00
Andrew Murray
d11c794997 Merge branch 'master' into 4962-jpeg-zigzag 2021-06-30 20:54:55 +10:00
Andrew Murray
0aa8bd00e7 Added warning if defusedxml is not found 2021-06-30 11:29:13 +10:00
Andrew Murray
d9d811ff21 Replaced xml.etree.ElementTree with defusedxml.ElementTree 2021-06-30 11:28:44 +10:00
Andrew Murray
a1d8d638bf
Checked complete length of value 2021-06-29 19:41:00 +10:00
Andrew Murray
cd31dae0d1 Added getxmp() for PNG 2021-06-12 13:57:14 +10:00
Andrew Murray
c1fbe2d975 Corrected getxmp() descending into XML 2021-06-12 11:58:11 +10:00
Andrew Murray
18e204df05 Removed DPI rounding from JPEG loading 2021-05-07 21:23:29 +10:00
Andrew Murray
6967f3519f Test when "adobe_transform" is unable to be read 2021-04-20 20:53:50 +10:00
Andrew Murray
4351c37fc4 Corrected adobe_transform value 2021-04-15 21:49:51 +10:00
Eric Soroos
1c872a9eda lint stuff 2021-04-10 16:58:01 +02:00
Eric Soroos
a3a69c8385 conditional mark for valgrind ignore 2021-04-09 23:53:24 +02:00
Andrew Murray
2c8684c525 Moved getxmp() into JpegImageFile 2021-04-01 22:28:37 +11:00
Andrew Murray
c52b45df62 Removed automatic retrieval of GPS IFD 2021-03-15 12:33:06 +11:00
Andrew Murray
3495b319bd Replaced various instances of assert_image_similar with assert_image_similar_tofile 2021-02-21 22:22:29 +11:00
Andrew Murray
a5c251029c Replaced various instances of assert_image_equal with assert_image_equal_tofile 2021-02-21 22:15:56 +11:00
Hugo van Kemenade
1857bf5570
Merge pull request #5259 from radarhere/warns 2021-02-17 21:31:15 +02:00
Andrew Murray
83542c42bf Added context managers 2021-02-11 21:43:54 +11:00
Andrew Murray
4a0569e97f Changed zero length assertions to falsy 2021-02-11 13:48:31 +11:00
Eric Soroos
1d7c8e03d0 known failing tests from valgrind -- uninitialized values 2021-01-07 14:52:02 +01:00
gofr
9980981c2e De-zigzag JPEG's DQT when loading; deprecate convert_dict_qtables 
Re-order the JPEG quantization tables to normal order when
loading. This wastes a few CPU cycles if you don't need them.
But it has the advantage of hiding the zigzag order JPEG
implementation detail of these tables completely from Pillow
users.

This difference has led to cases where:
* arrays in zigzag order were taken from a dict and passed
  directly as a qtables parameter, causing them to be "zigzagged"
  again by libjpeg.
* dicts with lists in normal order being passed to
  JpegImagePlugin.convert_dict_qtables, causing them to be
  unnecessarily "de-zigzagged".
 2020-10-17 20:20:59 +02:00
gofr
d54dc4062f fixup! Add tests for loading/saving of 16-bit quantization tables 2020-10-10 20:01:28 +02:00
gofr
2f0544b542 Add tests for loading/saving of 16-bit quantization tables 2020-10-10 18:53:49 +02:00
Hugo van Kemenade
9f1f63a46b
Merge pull request #4862 from radarhere/subifds 2020-09-02 16:58:55 +03:00
Andrew Murray
186a4723c8 Added test for empty GPS IFD 2020-09-02 21:14:36 +10:00
Andrew Murray
298b7d0333 Update pre-commit 2020-08-31 18:50:15 +10:00
luphord
4bb35c57dd clarify comment 
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
 2020-08-28 20:47:17 +10:00
luphord
ae5e0218e9 remove whitespace 2020-08-28 20:47:17 +10:00
luphord
1fd9ccfe3c test Exif self-equality 2020-08-28 20:47:16 +10:00
Andrew Murray
e96109b93c Added writing of subIFDs 2020-08-13 22:25:24 +10:00
Hugo van Kemenade
dd87dd50c0 Update to isort 5 with Black profile support 2020-08-08 22:39:29 +03:00
Kirill Kuzminykh
6d2fe429c2 Reformat code of `test_file_jpeg.py. 2020-06-22 12:20:57 +03:00
Andrew Murray
95ace8a39c
Merge branch 'master' into fix_jpeg_magic_number 2020-06-22 18:42:58 +10:00
nulano
a324f4a466 add version to features info block 2020-06-21 18:58:39 +10:00
Hugo van Kemenade
bcb8cbbf22
Merge pull request #4639 from radarhere/jfif 
Write JFIF header when saving JPEG
 2020-06-20 15:54:11 +03:00
Andrew Murray
65742cfc95 Renamed test 2020-06-20 09:57:51 +10:00
Andrew Murray
abbc890b20 Replaced OSError with more specific UnidentifiedImageError 2020-06-20 09:51:48 +10:00
Andrew Murray
3e9068a345 Decreased length of test image data 2020-06-20 09:48:55 +10:00
Kirill Kuzminykh
f99e0b824b Replaced primitive "magic number" inside of JpegImagePlugin._accept() function by more correct version. 2020-06-18 16:18:18 +03:00
Andrew Murray
ccac9e1a3a Changed to ImageFileDirectory_v2 2020-06-03 22:11:51 +10:00
Andrew Murray
696aa7972d Parametrized test 2020-05-26 07:15:20 +10:00
Andrew Murray
660894cd36 Write JFIF header when saving JPEG 2020-05-24 23:58:30 +10:00
Andrew Murray
df886ed386
Merge pull request #4290 from bluepython508/fix_djpeg_load_test 
Fixes djpeg load test
 2020-05-16 19:53:18 +10:00
Alexander
f15e4a8e06 truncate icclist instead of changing to None 2020-05-08 19:48:20 +03:00
Hugo
dda6145fce Since Python 3.3 IOError and WindowsError have been merged into OSError 2020-04-10 12:57:29 +03:00
Andrew Murray
e41cfade29 Add JPEG comment to info dictionary 2020-03-07 06:57:29 +11:00
Hugo
2cc6a9a974 Convert to use pytest 2020-03-02 16:31:08 +02:00
Hugo van Kemenade
3c995fd173
Merge pull request #4440 from radarhere/jpeg_quality 
Allow saving of zero quality JPEG images
 2020-02-25 12:02:53 +02:00
Hugo
699a9dadf1 Convert asserts 2020-02-22 18:07:04 +02:00
Andrew Murray
8482919a37 Converted most assert statements to pytest 2020-02-23 00:06:21 +11:00
Andrew Murray
a8c0794107 Allow saving of zero quality JPEG images 2020-02-21 22:05:44 +11:00
Jon Dufresne
4f185329f4 Streamline test skipping based on supported features 
This adds a new test decorator: skip_unless_feature(). The argument is
the same as passed to features.check(). If the feature is not supported,
the test will be skipped.

This removes several kinds of boilerplate copied and pasted around tests
so test feature checking is handled and displayed more consistently.

Refs #4193
 2020-02-18 13:07:01 -08:00
Jon Dufresne
98a2081a78 Move safe imports to the top of test files 
These modules are safe to import and this better follows PEP 8.

From https://www.python.org/dev/peps/pep-0008/#imports

> Imports are always put at the top of the file, just after any module
> comments and docstrings, and before module globals and constants.
 2020-02-17 10:49:27 -08:00
ben
a4721d374f Fixes djpeg load test 
* Test fails with `libjpeg-turbo` and `libjpeg-progs` on Ubuntu 16.04
* Epsilon reported is 4.18...
 2020-02-15 13:59:53 +11:00
Hugo van Kemenade
098406c304
Merge pull request #4390 from jdufresne/resource-warning 
Fix ResourceWarning emitted during tests
 2020-02-12 17:10:51 +02:00
Hugo
38bf862185 Replace PillowTestCase.assert_warning with pytest.warns 2020-02-03 11:11:32 +02:00
Hugo
a4bf9fa036 Convert most PillowTestCase methods to pytest 2020-02-02 12:26:01 +02:00
Jon Dufresne
2b84221edf Fix ResourceWarning emitted during tests 
Appeared in the form:

    ResourceWarning: unclosed file <_io.BufferedReader name='Tests/images/invalid-exif-without-x-resolution.jpg'>

Enable all warnings to always display during tests to help catch these
warnings earlier.
 2020-01-26 16:00:46 -08:00
Alexander
73171f5046 add test image 2020-01-20 17:25:40 +03:00
Andrew Murray
ee30fe1b39
Merge pull request #4147 from beipang2/issue_4146 
Use default DPI when exif provides invalid x_resolution
 2019-12-25 20:26:27 +11:00
Andrew Murray
2d7cfc4bbc
Merge pull request #4239 from radarhere/photoshop 
Handle broken Photoshop data
 2019-12-01 07:33:26 +11:00
Andrew Murray
e51be50549 Handle broken Photoshop data 2019-11-30 10:08:32 +11:00
Andrew Murray
c0048ad7de Use context managers 2019-11-26 07:03:23 +11:00