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4 .. _v4l2-meta-fmt-stat-3a:
12 3A statistics
15 The IPU3 ImgU 3A statistics accelerators collect different statistics over
16 an input Bayer frame. Those statistics are obtained from the "ipu3-imgu [01] 3a
17 stat" metadata capture video nodes, using the :c:type:`v4l2_meta_format`
18 interface. They are formatted as described by the :c:type:`ipu3_uapi_stats_3a`
25 The struct :c:type:`ipu3_uapi_4a_config` saves all configurable parameters.
27 .. code-block:: c
47 output video nodes, using the :c:type:`v4l2_meta_format` interface. They are
48 formatted as described by the :c:type:`ipu3_uapi_params` structure.
50 Both 3A statistics and pipeline parameters described here are closely tied to
56 .. code-block:: c