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

Fix incorrect decoding of image with large number of progression levels

2022-10-18T21:03:05Z

Fixes regression introduced per d27ccf01c68a31ad62b33d2dc1ba2bb1eeaafe7b Fixes #1447

Fix some typos (found by codespell)

2021-12-05T12:14:33Z

Signed-off-by: Stefan Weil

LGTM warning: Comparison result is always the same

2021-08-30T15:48:57Z

Comparison is always true because pos >= 0.

pi.c: avoid out of bounds access with POC (fixes #1302)

2020-12-04T19:45:25Z

pi.c: avoid out of bounds access with POC (refs https://github.com/uclouvain/openjpeg/issues/1293#issuecomment-737122836)

2020-12-02T13:03:11Z

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

Fix warnings about signed/unsigned casts in pi.c

2020-04-16T21:34:10Z

Implement writing of IMF profiles

2020-02-12T14:55:25Z

Add -IMF switch to opj_compress as well

pi.c: avoid integer overflow, resulting in later invalid access to memory in opj_t2_decode_packets(). Fixes https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=18979

2019-11-17T00:18:26Z

[OPENJP2] change the way to compute p_tx0, p_tx1, p_ty0, p_ty1 in function

2018-11-28T06:39:14Z

opj_get_encoding_parameters Signed-off-by: Young_X