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ipa: rpi: Add hardware line rate constraints

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Advertise hardware constraints on the pixel processing rate through the
Controller::HardwareConfig structure. When calculating the minimum line
length during a configure() operation, ensure that we don't exceed this
constraint.

If we do exceed the hardware constraints, increase the modes's minimum
line length so the pixel processing rate falls below the hardware limit.
If this is not possible, throw a loud error message in the logs.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Naushir Patuck 2024-01-04 11:38:55 +00:00 • committed by Laurent Pinchart
parent 577e0c6b76
commit 271598618d
3 changed files with 49 additions and 0 deletions
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src/ipa/rpi/controller/controller.h
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@ -15,6 +15,7 @@
#include <vector>
#include <string>
#include <libcamera/base/utils.h>
#include "libcamera/internal/yaml_parser.h"
#include "camera_mode.h"
@ -47,6 +48,7 @@ public:
unsigned int numGammaPoints;
unsigned int pipelineWidth;
bool statsInline;
libcamera::utils::Duration minPixelProcessingTime;
};
Controller();