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authorNaushir Patuck <naush@raspberrypi.com>2023-03-07 10:30:22 +0000
committerKieran Bingham <kieran.bingham@ideasonboard.com>2023-03-07 21:55:05 +0000
commit9648e859946bfd5e2eb30cf2655777670d24ccfb (patch)
tree6934859444881a851b4ada3e72d9c6542e6f1afb /Documentation
parentb6d84ed4566fe6bbb090a1c2b79fb768a266ebfb (diff)
ipa: raspberrypi: Better heuristics for calculating Unicam timeout
The existing mechanism of setting a timeout value simply uses the maximum possible frame length advertised by the sensor mode. This can be problematic when, for example, the IMX477 sensor can use a frame length of over 600 seconds. However, for typical usage the frame length will never go over several 100s of milliseconds, making the timeout very impractical. Store a list of the last 10 frame length values requested by the AGC. On startup, and at the end of every frame, take the maximum frame length value from this list and return that to the pipeline handler through the setCameraTimeoutValue() signal. This allows the timeout value to better track the actual sensor usage. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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