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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

[1.0.0] - 2024-08-14

Added

  • added script to generate release notes
  • added python example to show use of pylonmeta from pyth
    • fixes #114

Fixed

  • NVMM image width is in byte not pixels!
    • fixes #100
  • removing source while active buffers in pipeline
    • fixes lifetime issue between buffers in pipeline and src
    • fixes #54
  • Proper init/terminate of pylon sdk from gst-plugin-scanner
    • avoids output of an exception message after new install
  • Removed unused pylonc library dependency

Changed

  • Only export external header files to access PylonMeta

[0.7.3] - 2024-07-30

Added

  • publish artifacts on release page

Fixed

  • build debian package in case meson/ninja already installed

[0.7.2] - 2024-07-12

Changed

  • add debian packaging
    • CI builds for std x86/aarch64 ubuntu and debian targets
    • Building deb packates for NVIDIA Jetson is documented in the README

Fixed

  • workaround for failed tests for Ubuntu 22.04
    • fixes #111
  • fix nvmm error if no camera connected
    • fixes #88

[0.7.1] - 2024-06-06

Changed

  • check for cuda version >= 11 to enable nvmm code
    • nvmm support implementation is only compatible to cuda >= 11
    • fixes #60
  • update documentation to build on Windows
    • fixes #68
  • latency update
    • src now sends a message to recompute pipeline latency when it becomes known
    • fixed by #104

Fixed

  • float features working again
    • fixes #80
  • build now works with the changes in meson >= 1.3.0
    • fixes #72
  • build now works with the changes in meson >= 1.4.0
  • fixed CI on ubuntu 24.04
  • fixed invalid buffer size with enabled chunks ( non NVMM mode )
    • fixed by #101
  • fixed possible segfault path in NVMM error path
    • fixed by #103

Added

  • Pylon 7.5
    • supports to build the plugin with pylon 7.5 now
  • Pylon 7.4
    • supports to build the plugin with pylon 7.4 now

[0.7.0] - 2023-05-08

Changed

  • offset x/y are cached when pipeline is not playing.
    • setting the offset an ROI configured via caps is possible now
    • fixes #44

Added

  • Restructing of buffer pool management to support platform specific optimal buffer types

  • NVMM support

    • This feature is automatically enabled when both the CUDA library and the DeepStream library are installed on the system.
    • If enabled pylonsrc can directly generate output buffers into nvmm, that can be used by other nvidia elements.
    • Current restrictions:
      • only runs on NVIDIA Jetson at the moment

  • Pylon 7.3

    • meson supports to build the plugin with pylon 7.3 now

[0.6.2] - 2023-04-04

Changed

  • automatic rounding of values is default

    • behavioural change
    • if a value set via gstreamer is not valid for the camera it will be automaticaylly roundedi
    • this can be disabled by enable-correction=false

  • Filter gev control features to speed up introspection

    • exclude gev control dependencies

[0.6.1] - 2023-03-27

Changed

  • Filter event data nodes
    • exclude from registration until supported in gstreamer

Fixed

  • Process feature limits for ace gige
    • extend heuristics
    • fixes #37

[0.6.0] - 2023-03-24

Added

  • Caching infrastructure to reduce runtime of property introspection process
    • ranges and access behaviour of features are saved during introspection
    • cache data is saved in glib_user_cache_dir/gstpylon/
  • Python bindings to access pylon image metadata from python-gstreamer scripts
    • can be enabled during configuration using meson option -Dpython-bindings=enabled
  • gstreamer property added to automatically round properties to the nearest valid camera values
    • enable-correction=<true/false> activates automatic correction of values.
  • git version is reflected in the plugin version string

Changed

  • Changed codebase from mixed c/c++ to c++
    • symbol default visibility 'hidden' on all platforms
  • Exclude the following feature groups from introspection until properly supported
    • SequencerControl
    • FileAccessControl
    • MultiROI
    • Events
    • Commmands

Fixed

  • Disable the DeviceLinkSelector on all devices
    • fixes an issue with specific dart1 models
  • Concurrent start of pylonsrc from multiple processes
    • opening a device is now retried for 30s in case of multiprocess collision
    • fixes #25
  • ace2/dart2/boost feature dependency introspection fixed
    • fixes #32

[0.5.1] - 2022-12-28

Fixed

  • Properly handle cameras, where OffsetX/Y is readonly after applying startup settings ( Fixes #26)

[0.5.0] - 2022-12-09

Added

  • Access to all pylon image metadata
    • GrabResult
      • BlockID
      • ImageNumber
      • SkippedImages
      • OffsetX/Y
      • Camera Timestamp
    • Chunkdata
      • all enabled chunks are added as key/value GstStructure elements
    • for sample user code see the show_meta example
  • Generation of includes, library and pkg-config files to access the GstMeta data of the plugin
  • Camera properties accessible by integer based selectors are now accessible as gstreamer properties
    • some properties e.g. ActionGroupMask are selected by an integer index. Support for these properties is now integrated.

Changed

  • Breaking change for width/height fixation:
    • old: prefer min(1080P, camera.max)
    • new: prefer current camera value after user-set and pfs-file
  • Startup time on some camera models extended up to ~5s
    • This is a side effect of the fixes to properly capture the absolute min/max values of a property.
    • The first gst-inspect-1.0 after compilation/installation will block twice as long.
    • A caching infrastructure to skip this time on subsequent usages of pylonsrc is scheduled for the next release.

Fixed

  • Properties have now proper flags to allow changing in PLAYING state if valid for pylon.
  • Plugin uses only a single 'pylonsrc' debug channel (Fixes #22)
    • usage of 'default' and 'pylonsrc' channel was root cause of stability issues with extensive logging
  • Detect the absolute min/max values of properties
    • the feature limits of GenICam based cameras can change depending on the operating point. The plugin now explores the min/max values possible with the current device.
  • Allow generic introspection of plugin properties ( Fixes #18)
    • internal restructuring of property type system
    • for sample user code see the list_properties example
  • Update readme to cover exact steps to build the plugin (Fixes #23, #19, #20)
  • Upstream gstreamer fix to properly detect typos in gst-launch-1.0 pipeline definitions !2908
    • Fix is available in gstreamer >= 1.21

[0.4.0] - 2022-10-06

Added

  • Add property to control behaviour in case of capture errors. Allow to abort capture ( current behaviour ) / skip / keep bad buffer
  • Add support for proper handling of a device disconnect

Changed

  • Dynamically adjust a feature's access mode. This will make a feature writable, if it's access mode depends on another features state. ( Fixes issue #12 )

Fixed

  • Fix building gst-plugin-pylon with pylon 6 in monorepo configuration ( Fixes issue #15 )

[0.3.0] - 2022-09-13

Added

  • Support to access stream grabber parameters via stream:: prefix
  • Bayer 8bit video data support
  • Add property to configure camera from a pylon feature stream file ( pfs-location=<filename> )
  • Support to build gst-plugin-pylon as monorepo subproject to test against upcoming changes in gstreamer monorepo
  • Add pygobject example to access camera and stream grabber features in the folder examples

Changed

  • Remove fixed grab timeout of 5s. pylonsrc will now wait forever. If required timeout/underrun detection can be handled in the gstreamer pipeline. ( e.g. via queue underrun )
  • Remove limititation to only map features that are streamable Effect is that now all accessible features of a camera are mapped to gstreamer properties
  • Output more information in case of missing selection of a camera. Now: serial number, model name and user defined name.
  • Run all tests in github actions

Fixed

  • Allow loading of default user set on some early Basler USB3Vision cameras

[0.2.0] - 2022-08-09

Added

  • Initial public release