The DALI 0.15.0 is a beta release. Hence, for all the features, the functionality and
performance will likely be limited.
Using DALI 0.15.0 Beta
To upgrade to DALI 0.15.0 beta from an older version of DALI, follow the installation
instructions in the DALI Quick Start Guide.
Refer to the DALI Developer Guide for usage
details.
Note: The internal DALI C++ API used for operators implementation, and the C++ API that
enables using DALI as a library from native code, are not yet officially supported.
Hence these APIs may change in the next release without advance notice.
Key Features and Enhancements
This DALI release includes the following key features and
enhancements.
- New operators and extended functionality of the following:
- CPU DLTensor operator (#1233)
- Added Lookup table operator (#1251)
- BrightnessContrast operator (#1188)
- Added CropMirrorNormalize 3D support (#1326)
- Added Reshape operator (#1327)
- New kernels:
- Linear transformation GPU kernel (#1262)
- Linear Transformation kernel for CPU (#1300)
- Video reader improvements:
- Improved heuristic for variable frame rate detection (#1242)
- Added support for decoding multiple resolution videos in the same
pipeline (#1144)
- Tensor layout (#1237) and Layout refactor (#1250) - new, domain agnostic, flexible
description of a tensor layout that is compatible with string
representation.
- Multi channel image decoding - supporting more than 3 channels:
- ImageDecoder libtiff implementation (#1264)
- Handle nchannels>3 in ImageDecoder
(#1285)
- Parse number of channels in PNGImage::PeekShape
(#1288)
- TiffImage::PeekShapeImpl parse and return number of
channels (#1304)
- Add parsing of number of channels in
JpegImage::PeekShapeImpl (#1306)
- DALI TensorFlow plugin installation improvements.
Fixed Issues
This DALI release includes the following fixes.
- Fixed Transpose operator when data shape with dimension of
size 1 (#1244)
- Fixed problems with seeking when stream start_time is
!= 0. (#1287)
- Suppressed warning when FileReader encounters dot and
dot-dot entries (#1318)
- Fixed last_batch_padded docs (#1314)
- Fixed DALI TensorFlow plugin CXX11 ABI issue (#1361)
Breaking Changes
- Changed Outputs and SharedOuputs return
type to tuple (#1243)