drivers: video: sw_stats: software-based statistics #87008
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josuah
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This was referenced Mar 12, 2025
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Converting to draft until all dependencies are done and CI passes. |
This was referenced Apr 18, 2025
Introduce an abstraction layer handling the diversity of ways hardware have to report statistics. This allows to take advantage of the various channel average or histograms present on some hardware, that skip the need to manually compute statistics. Fixes zephyrproject-rtos#85457 Signed-off-by: Josuah Demangeon <me@josuah.net>
Add support for the new API video_set_stats() to the emulated video RX driver, and use it to implement simple API tests. The data returned is arbitrary for the sake of testing the API itself. Signed-off-by: Josuah Demangeon <me@josuah.net>
The "pixel" library aims facilitating the implementation of all image processing tasks, such as pixel conversion, with a focus on low-resource environments. The processing functions scale down to per-pixel "kernels" to line-based conversion to full streams of several frames. Signed-off-by: Josuah Demangeon <me@josuah.net>
The newly introduced lib/pixel features utilities that help composing video pipelines together for the purpose of stream processing, as well as debug utilities. Signed-off-by: Josuah Demangeon <me@josuah.net>
This is a temporary test for CI only. Signed-off-by: Josuah Demangeon <me@josuah.net>
Add a new driver computing software statistics over a frame passed to it. This allows collecting channel averges or histogram of an input image using the video statistics API even when no hardware provides it. Signed-off-by: Josuah Demangeon <me@josuah.net>
Test it by filling a buffer manually with test data and verify that the statistics produced are matching. Signed-off-by: Josuah Demangeon <me@josuah.net>
The typo is `video_common` used while `video_emul` should have been used. Signed-off-by: Josuah Demangeon <me@josuah.net>
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I propose implementing all of this inside of an application library on top of Zephyr, rather than a driver inside Zephyr. |
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Dependencies:
A software-based statistics back-end using #86671