openjpeg/src/lib/openjp2/openjpeg.c, branch master

Fix compiler error on Windows

2024-01-05T00:21:15Z

CMake: error out on warnings for strict/missing prototypes.

2023-03-09T19:09:27Z

And fix strict-prototypes/missing-prototypes warnings.

Add support for partial bitstream decoding (#1407) (fixes #715)

2022-02-10T13:27:17Z

Add a -allow-partial option to opj_decompress utility and a opj_decoder_set_strict_mode() option to the API Co-authored-by: Chris Hafey

openjpeg.c: avoid casts of function pointers

2021-06-07T10:57:30Z

Add multithreading support in the T1 (entropy phase) encoder

2020-05-20T18:30:21Z

- API wise, opj_codec_set_threads() can be used on the encoding side - opj_compress has a -threads switch similar to opj_uncompress

Add support for generation of PLT markers in encoder

2020-04-21T13:55:44Z

* -PLT switch added to opj_compress * Add a opj_encoder_set_extra_options() function that accepts a PLT=YES option, and could be expanded later for other uses. ------- Testing with a Sentinel2 10m band, T36JTT_20160914T074612_B02.jp2, coming from S2A_MSIL1C_20160914T074612_N0204_R135_T36JTT_20160914T081456.SAFE Decompress it to TIFF: ``` opj_uncompress -i T36JTT_20160914T074612_B02.jp2 -o T36JTT_20160914T074612_B02.tif ``` Recompress it with similar parameters as original: ``` opj_compress -n 5 -c [256,256],[256,256],[256,256],[256,256],[256,256] -t 1024,1024 -PLT -i T36JTT_20160914T074612_B02.tif -o T36JTT_20160914T074612_B02_PLT.jp2 ``` Dump codestream detail with GDAL dump_jp2.py utility (https://github.com/OSGeo/gdal/blob/master/gdal/swig/python/samples/dump_jp2.py) ``` python dump_jp2.py T36JTT_20160914T074612_B02.jp2 > /tmp/dump_sentinel2_ori.txt python dump_jp2.py T36JTT_20160914T074612_B02_PLT.jp2 > /tmp/dump_sentinel2_openjpeg_plt.txt ``` The diff between both show very similar structure, and identical number of packets in PLT markers Now testing with Kakadu (KDU803_Demo_Apps_for_Linux-x86-64_200210) Full file decompression: ``` kdu_expand -i T36JTT_20160914T074612_B02_PLT.jp2 -o tmp.tif Consumed 121 tile-part(s) from a total of 121 tile(s). Consumed 80,318,806 codestream bytes (excluding any file format) = 5.329697 bits/pel. Processed using the multi-threaded environment, with 8 parallel threads of execution ``` Partial decompresson (presumably using PLT markers): ``` kdu_expand -i T36JTT_20160914T074612_B02.jp2 -o tmp.pgm -region "{0.5,0.5},{0.01,0.01}" kdu_expand -i T36JTT_20160914T074612_B02_PLT.jp2 -o tmp2.pgm -region "{0.5,0.5},{0.01,0.01}" diff tmp.pgm tmp2.pgm && echo "same !" ``` ------- Funded by ESA for S2-MPC project

Implement writing of IMF profiles

2020-02-12T14:55:25Z

Add -IMF switch to opj_compress as well

opj_set_decoded_components(): add a provision for a apply_color_transforms parameter in case we support it in the future

2017-09-19T15:48:07Z

Add capability to decode only a subset of all components of an image.

2017-09-19T15:06:19Z

This adds a opj_set_decoded_components(opj_codec_t *p_codec, OPJ_UINT32 numcomps, const OPJ_UINT32* comps_indices) function, and equivalent "opj_decompress -c compno[,compno]*" option. When specified, neither the MCT transform nor JP2 channel transformations will be applied. Tests added for various combinations of whole image vs tiled-based decoding, full or reduced resolution, use of decode area or not.

Complementary fix to previous commit

2017-08-07T16:32:52Z