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python-jpeg-toolbox's Issues

EXIF data appears to be removed

Running a load then save of an image containing EXIF data appears to remove it. Can removal of EXIF either be made optional or updated to retain the EXIF information?

Fails To Install From Source

python3 setup.py install

/usr/lib/python3/dist-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
/usr/lib/python3/dist-packages/setuptools/command/easy_install.py:146: EasyInstallDeprecationWarning: easy_install command is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
jpeg_toolbox_extension.c: In function ‘read_file’:
jpeg_toolbox_extension.c:197:53: error: ‘struct jpeg_decompress_struct’ has no member named ‘block_size’
  197 |    result = dict_add_int(result, "block_size", cinfo.block_size);
      |                                                     ^
jpeg_toolbox_extension.c:198:65: error: ‘struct jpeg_decompress_struct’ has no member named ‘min_DCT_h_scaled_size’; did you mean ‘min_DCT_scaled_size’?
  198 | esult = dict_add_int(result, "min_DCT_h_scaled_size", cinfo.min_DCT_h_scaled_size);
      |                                                             ^~~~~~~~~~~~~~~~~~~~~
      |                                                             min_DCT_scaled_size
jpeg_toolbox_extension.c:199:65: error: ‘struct jpeg_decompress_struct’ has no member named ‘min_DCT_v_scaled_size’; did you mean ‘min_DCT_scaled_size’?
  199 | esult = dict_add_int(result, "min_DCT_v_scaled_size", cinfo.min_DCT_v_scaled_size);
      |                                                             ^~~~~~~~~~~~~~~~~~~~~
      |                                                             min_DCT_scaled_size
jpeg_toolbox_extension.c:219:63: error: ‘jpeg_component_info’ has no member named ‘DCT_h_scaled_size’; did you mean ‘DCT_scaled_size’?
  219 |     comp = dict_add_int(comp, "DCT_h_scaled_size", compptr->DCT_h_scaled_size);
      |                                                             ^~~~~~~~~~~~~~~~~
      |                                                             DCT_scaled_size
jpeg_toolbox_extension.c:220:63: error: ‘jpeg_component_info’ has no member named ‘DCT_v_scaled_size’; did you mean ‘DCT_scaled_size’?
  220 |     comp = dict_add_int(comp, "DCT_v_scaled_size", compptr->DCT_v_scaled_size);
      |                                                             ^~~~~~~~~~~~~~~~~
      |                                                             DCT_scaled_size
jpeg_toolbox_extension.c: In function ‘write_file’:
jpeg_toolbox_extension.c:475:9: error: ‘struct jpeg_compress_struct’ has no member named ‘block_size’
  475 |    cinfo.block_size = dict_get_int(data, "block_size");
      |         ^
jpeg_toolbox_extension.c:476:9: error: ‘struct jpeg_compress_struct’ has no member named ‘min_DCT_h_scaled_size’
  476 |    cinfo.min_DCT_h_scaled_size = dict_get_int(data, "min_DCT_h_scaled_size");
      |         ^
jpeg_toolbox_extension.c:477:9: error: ‘struct jpeg_compress_struct’ has no member named ‘min_DCT_v_scaled_size’
  477 |    cinfo.min_DCT_v_scaled_size = dict_get_int(data, "min_DCT_v_scaled_size");
      |         ^
jpeg_toolbox_extension.c:500:16: error: ‘jpeg_component_info’ has no member named ‘DCT_h_scaled_size’; did you mean ‘DCT_scaled_size’?
  500 |       compptr->DCT_h_scaled_size = dict_get_int(item, "DCT_h_scaled_size");
      |                ^~~~~~~~~~~~~~~~~
      |                DCT_scaled_size
jpeg_toolbox_extension.c:501:16: error: ‘jpeg_component_info’ has no member named ‘DCT_v_scaled_size’; did you mean ‘DCT_scaled_size’?
  501 |       compptr->DCT_v_scaled_size = dict_get_int(item, "DCT_v_scaled_size");
      |                ^~~~~~~~~~~~~~~~~
      |                DCT_scaled_size
error: command '/usr/bin/x86_64-linux-gnu-gcc' failed with exit code 1

New branch fails to build. Possibly a missing install dependency.

Collecting git+https://github.com/daniellerch/python-jpeg-toolbox
Cloning https://github.com/daniellerch/python-jpeg-toolbox to /tmp/pip-req-build-ugg2z4_c
Running command git clone -q https://github.com/daniellerch/python-jpeg-toolbox /tmp/pip-req-build-ugg2z4_c
Building wheels for collected packages: jpeg-toolbox
Building wheel for jpeg-toolbox (setup.py) ... error
ERROR: Command errored out with exit status 1:
command: /usr/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-ugg2z4_c/setup.py'"'"'; file='"'"'/tmp/pip-req-build-ugg2z4_c/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);c
ode=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-vv3t_jj4
cwd: /tmp/pip-req-build-ugg2z4_c/
Complete output (15 lines):
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
copying jpeg_toolbox.py -> build/lib.linux-x86_64-3.8
running build_ext
building 'jpeg_toolbox_extension' extension
creating build/temp.linux-x86_64-3.8
x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-t
ime -D_FORTIFY_SOURCE=2 -fPIC -I/usr/include/python3.8 -c jpeg_toolbox_extension.c -o build/temp.linux-x86_64-3.8/jpeg_toolbox_extension.o
jpeg_toolbox_extension.c:4:10: fatal error: jerror.h: No such file or directory
4 | #include <jerror.h>
| ^~~~~~~~~~
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

ERROR: Failed building wheel for jpeg-toolbox

Description of paramters?

Thanks for your work.

When I read an image with your toolbox, it has the following keys:

'image_width', 'image_height', 'image_color_space', 'image_components', 'jpeg_color_space', 'jpeg_components', 'progressive_mode', 'comp_info', 'quant_tables', 'ac_huff_tables', 'dc_huff_tables', 'coef_arrays'

I am not sure about the meaning of them. For example, what is the meaning of 'jpeg_color_space' = 3?
Can you provide their descriptions (or the reference of descriptions)?

"save" does not work

the function "jpeg_toolbox.save()" does not work, I got a jpeg image with size of 0kb through the function everytime. How should I resolve this problem？

jpeg_toolbox.load() returns empty dictionary

Hi, thanks for such a good work ! When I try to use the jpeg_toolbox.load() to read my jpg pics, it returns an empty dictionary, the original error is:

KeyError Traceback (most recent call last)
in
1 prefix = "../data/JPG"
2
----> 3 test = jpeg_toolbox.load(f"{prefix}/00899.jpg")

/data/anaconda3/lib/python3.8/site-packages/jpeg_toolbox.py in load(path, use_blocks)
23 r = jpeg.read_file(path.encode())
24
---> 25 r["quant_tables"] = np.array(r["quant_tables"])
26
27 for i in range(len(r["ac_huff_tables"])):

KeyError: 'quant_tables'

My python environment is 3.8 with Linux version 4.4.0-210-generic (buildd@lgw01-amd64-009) (gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.12) ). Have no clue why this happened. Is there any thing I've missed ? and what's the exact environment this repository is compatible with? Thanks if you can help me out.

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