openjpeg/src/lib/openjp2/t1.c, branch master

Fix some typos (found by `codespell` and `typos`)

2024-02-28T15:23:43Z

Signed-off-by: Stefan Weil

Cleanup code related to quality layer allocation, and add a few safety checks

2022-08-11T16:12:07Z

opj_t1_encode_cblk(): avoid undefined behaviour on fuzzed input (fixes #1432)

2022-06-29T09:47:58Z

Added support for high throughput (HTJ2K) decoding.

2021-09-25T10:26:59Z

There are a few limitations: - mixed mode (HT and regular code blocks) is not supported. - ROI in HT blocks is not supported. - Placeholder passes are not supported. - MultiHT sets are not support, only a singleHT set. - there are known issues with some compliance testing files related to the parsing of packet header.

Fix typo in internal function name

2020-11-23T12:38:27Z

Merge pull request #1253 from rouault/floating_point_irreversible_encoding

2020-10-09T11:25:27Z

Single-threaded performance improvements in forward DWT for 5-3 and 9-7 (and other improvements)

openjp2: Plug memory leak when setting data as TLS fails.

2020-06-22T19:21:31Z

Previously the Tier 1 handle was not freed when setting it as TLS failed. This fixes issue #1257.

openjp2: Error out if failing to create Tier 1 handle.

2020-06-22T18:32:31Z

Previously when the handle failed to be created (e.g. when opj_calloc returned NULL due to low memory), the code still assumed that the t1 handle pointer was valid and dereferenced NULL, causing a crash. After this commit OpenJPEG will instead error out under this condition. This fixes issue #1255.

T1 encoder: speed-up by aggressive inlining and more cache friendly data organization

2020-05-24T13:38:48Z

~ 9% speed improvement seen on 10980x10980 uint16 image, T36JTT_20160914T074612_B02.tif opj_compress time from 17.2s to 15.8s

Irreversible compression/decompression DWT: use 1/K constant as per standard

2020-05-20T18:31:28Z

The previous constant opj_c13318 was mysteriously equal to 2/K , and in the DWT, we had to divide K and opj_c13318 by 2... The issue was that the band->stepsize computation in tcd.c didn't take into account the log2gain of the band. The effect of this change is expected to be mostly equivalent to the previous situation, except some difference in rounding. But it leads to a dramatic reduction of the mean square error and peak error in the irreversible encoding of issue141.tif !