Release Notes¶

v0.8.1¶

Tegra/Jetson support added.
Python wheels for installing nvJPEG2000 library through pip.
Decoder
- Decoder supports interleaved output format. Can be enabled using nvjpeg2kDecodeParamsSetOutputFormat.
- New API (nvjpeg2kStreamParseFile) which accepts file name as input has been added.
- Number of layers that can be decoded increased from 20 to 32.
- Bitstreams with COC marker can be decoded as long as the parameters are same across all components.
- Fixed a bug which could cause the decoder to crash when multiple tiles and custom precincts are enabled with RPCL, PCRL, CPRL pogression orders.
Encoder
- Custom precincts are supported. Set num_precincts_init (part of nvjpeg2kEncodeConfig_t)to valid no of precincts in precinct_width, and precinct_height.
- Encoder accepts images in interleaved format. Can be enabled using nvjpeg2kEncodeParamsSetInputFormat.
Support for Centos/RHEL 7 is deprecated and will be dropped in future releases.
Breaking Changes
- The following fields in nvjpeg2kEncodeConfig_t have been renamed -
  precint_width renamed to precinct_width to fix typo.
  
  precint_height renamed to precinct_height to fix typo.
  
  enable_custom_precincts renamed to num_precincts_init to better reflect the behavior.

This release provides important security updates for CVE-2023-31027 and is recommended for all users.
- To view any published security bulletins for NVIDIA products, see the NVIDIA product security page (https://www.nvidia.com/en-us/security/).
- For more information regarding NVIDIA’s security vulnerability remediation policies, see (https://www.nvidia.com/en-us/security/psirt-policies/)
Arm sbsa support added.
Inverse wavelet transform optimizations. Up to 20% improvement in single image decode throughput observed for RGB HTJ2K bitstreams.
Bitstreams with QCC marker can now be decoded.
Bitstreams with COM marker in the tile header can now be decoded.

High throughput JPEG 2000 code streams can now be decoded. All code-blocks have to be HT code-blocks with one HT set and no refinement.
CUDA 12 support - Binaries for both CUDA 11 and CUDA 12 are available.
Extended allocator support which accepts cuda streams and context information.
Memory Padding APIs for both pinned and device memory have been added.
Fixed multiple issues which were causing the decoder to hang or crash.
Fixed an issue which was causing the encoder to error out when compressing random data.

Decoder
- 4k digital cinema profile support.
- JPEG 2000 bitstreams with predictable termination enabled can be decoded.
- Hopper(sm90) support is added.
- Fixed an issue in the quantization information parser. This was causing decode output corruption in some cases.
- Fixed a horizontal clipping issue seen with nvjpeg2kDecodeImage(), when an area of interest was decoded.
Encoder
- Fixed an issue which was resulting in wrong output when no of components = 4 and mct mode was enabled.

Decoder
- JPEG 2000 bitstreams with last partition length set to 0 can be decoded.
- JPEG 2000 bitstreams with cdef jp2 header can be decoded.
- Bitstream corruption checks have been relaxed.
Encoder
- Multi-tile encoding.
- All progression orders are supported.
- Performance improvements for lossy encoding.

nvJPEG2000 is now available on Microsoft Windows 10 and Windows Server 2019.
Bitstreams with multiple tiles are now supported. Each tile can have a single tile partition.
RLCP progression order is supported.
Fixed an intermittent issue which was causing the library to produce incorrect decode output.

First release of the nvJPEG2000 library.
Refer to the Introduction section of the documentation for the list of features supported.