Release 0.3.23

0.3.23 Beta Release 22

Added

• rpi::ScalerCrops control support
• Hailo multi-model support
• Stereo preview example script
• Add PyavOutput and a new CircularOutput2
• Allow libav H264 encoder to use V4L2 hardware on VC4 platforms
• bbox-order argument for imx500_object_detection_demo script

Changed

• Fix ScalerCrops tests
• imx500: Update MAX_NUM_TENSORS and MAX_NUM_DIMENSIONS
• Fix V4L2 encoder not releasing requests

Release 0.3.21

0.3.22 Beta Release 21

Changed

• Add to_tuple methods to libcamera Rectangle and Size types
• Add IMX500 support

Release 0.3.20

0.3.20 Beta Release 19

Added

• Initial support for Hailo AI devices, including some examples.
• IMX708 helper class so that the sensor HDR mode can be set with Python.

Changed

• Improved handling of timeouts when cameras stop responding, including a mechanism for a complete
  reset if requests stop being returned.
• Platform checking more robust.
• Add missing flush parameter to captured_request() (for use with context manager).

Release 0.3.19

0.3.19 Beta Release 18

Added

• Add an example showing how to forward images to other processes using zero-copy.
• Add a context manager method for capturing requests, e.g. with picam2.captured_request() as r:
• Encoders can skip frames, e.g. run at half the rate of the camera.

Changed

• Configuration alignment fixed on Pi 5.
• Improve support for displays without alpha blending.

Release 0.3.18

0.3.18 Beta Release 17

Added

• Yolov5s TensorFlow example.
• MJPEG server example with 90/270 degree rotation.

Changed

• File descriptor leak fixed when closing DmaAllocator.
• EGL memory leak fied.
• Missing R16 mono raw format added for Pi 5.
• Minor LibavH264Encoder improvements.

Release 0.3.17

0.3.17 Beta Release 16

Added

• Pi 5 users can now request 48-bit RGB outputs (where each R, G and B sample is 16-bit).
• Support for h.264 codec profiles.
• DNG files can be written to ioBytes objects.
• Persistent allocators added.
• Timeout support waiting for asynchronous requests to complete.

Changed

• FFmpeg thread queue size increased, to suppress warnings and improve behaviour.
• Quality argument is respected properly by start_encoder().

Release 0.3.14

0.3.14 Beta Release 13

Added

Changed

• All picamera2.allocators package.

0.3.13 Beta Release 12

Added

• Pi 5 support added. Includes platform detection, new raw formats etc.
• Libav encoders added. These will be used as the H264 and MJPEG encoder on Pi 5.

Changed

• Frame buffers are now cached to improve performance.
• Encoders should no longer drop frames when closed.
• FfmpegOutput should stop properly when there's an audio stream.
• Updates for the latest version of libcamera, including sensor configuration.

Release 0.3.12

0.3.12 Beta Release 11

Added

Changed

• Small bug that prevented the configuration of USB cams fixed.

Release 0.3.11

0.3.11 Beta Release 10

Added

Changed

• The search path for tuning files (after the libcamera re-organisation) has been fixed.
• The built-in configuration objects (picamera2.preview_configuration etc.) are updated to work better with raw streams now that the latest libcamera is more efficient when we use them.

Release 0.3.10

0.3.10 Beta Release 9

Added

• Support for running multiple encoders, either on the same or different streams.
• Pathlib objects now supported.

Changed

• The camera can be stopped more quickly.
• Fix problem passing modes from the sensor mode list to the configure methods.
• H264 encoder quality was having no effect on bitrate - fixed.
• ffmpegoutput - wait correctly for it to finish when we stop it.
• Amount of CMA memory required is reduced for many use cases.