openjpeg/src/lib/openjp2/j2k.c, branch v2.4.0 Fork of openjpeg library for JPEG2000 encoding and decoding https://git.carlh.net/cgit/openjpeg/atom?h=v2.4.0 2020-12-02T13:10:16Z opj_j2k_write_sod(): avoid potential heap buffer overflow (fixes #1299) (probably master only) 2020-12-02T13:10:16Z Even Rouault even.rouault@spatialys.com 2020-12-02T13:10:16Z urn:sha1:73fdf28342e4594019af26eb6a347a34eceb6296 opj_j2k_setup_encoder(): validate POC compno0 (fixes #1293) 2020-12-01T18:56:44Z Even Rouault even.rouault@spatialys.com 2020-12-01T18:39:09Z urn:sha1:c9380ed0f8cc4794fc71d556ea23ae61e32247af Decoding: deal with some SPOT6 images that have tiles with a single tile-part with TPsot == 0 and TNsot == 0, and with missing EOC 2020-11-30T16:53:04Z Even Rouault even.rouault@spatialys.com 2020-11-30T16:36:27Z urn:sha1:1aa3c60859ab2a3edb7a68682f131c6b3a91da72 Merge pull request #1253 from rouault/floating_point_irreversible_encoding 2020-10-09T11:25:27Z Even Rouault even.rouault@spatialys.com 2020-10-09T11:25:27Z urn:sha1:491299eb073c80602ca8ee333303a31a581d3fa8 Single-threaded performance improvements in forward DWT for 5-3 and 9-7 (and other improvements) Encoder: avoid uint32 overflow when allocating memory for codestream buffer (fixes #1243) 2020-09-16T09:27:53Z Even Rouault even.rouault@spatialys.com 2020-09-16T09:27:53Z urn:sha1:0863ccf291238de15ca00da366b4c40fa9ffb673 openjp2: Plug image leak when failing to allocate codestream index. 2020-06-22T19:42:25Z Sebastian Rasmussen sebras@gmail.com 2020-06-22T18:18:19Z urn:sha1:b028e8d1ce7798f61c35b1b20d836f80d78a35d0 This fixes issue #1259. Merge pull request #1211 from sebras/master 2020-05-20T19:10:55Z Even Rouault even.rouault@spatialys.com 2020-05-20T19:10:55Z urn:sha1:19ef7f26c43f689b627aad642da7f6150893b863 Add check to validate SGcod/SPcoc/SPcod parameter values. opj_j2k_setup_encoder(): add validation of tile width and height to avoid potential division by zero 2020-05-20T18:31:28Z Even Rouault even.rouault@spatialys.com 2020-05-19T20:26:22Z urn:sha1:4ab2ed090747ad2f22e78d45a1db5640d40e6a34 Add support for generation of PLT markers in encoder 2020-04-21T13:55:44Z Even Rouault even.rouault@spatialys.com 2020-04-21T13:55:44Z urn:sha1:4edb8c83374f52cd6a8f2c7c875e8ffacccb5fa5 * -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 Rename mis-named function opj_tcd_get_encoded_tile_size() to opj_tcd_get_encoder_input_buffer_size() 2020-04-16T18:33:22Z Even Rouault even.rouault@spatialys.com 2020-04-16T18:33:22Z urn:sha1:221a801a97a3ea968a311f7905c18a1eb7f034c4