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2023-09-04ipa: rpi: agc: Split AgcStatus into AgcStatus and AgcPrepareStatusDavid Plowman
The Agc::process() function returns an AgcStatus object in the metadata as before, but Agc::prepare() is changed to return the values it computes in a separate AgcPrepareStatus object (under the new tag "agc.prepare_status"). The "digitalGain" and "locked" fields are moved from AgcStatus to AgcPrepareStatus. This will be useful going forward as we can be more flexible about the order in which prepare() and process() are called, without them trampling on each other's results. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-09-04ipa: rpi: agc: Filter exposures before dealing with digital gainDavid Plowman
We now time-filter the exposure before sorting out how much digital gain is required. This is actually a little more natural and simplifies the code. It also prepares us for some future work where this arrangement will be helpful. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrpyi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-09-04ipa: rpi: agc: Fetch AWB status in process method, not prepareDavid Plowman
prepare() doesn't use the AWB status, so fetching it in process() is probably better. This change is preparatory to other changes, where we may find ourselves calling process() without having called prepare() previously. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-06-19ipa: rpi: agc: Do not switch to a default if a mode is unavailableNaushir Patuck
In commit 0ee9339331c6, a default metering/exposure/constraint mode is used if a control sets a mode that is not listed in the camera tuning file. Setting a default mode may be undesirable in these cases, so instead keep the agc mode unchanged. This also matches the behaviour for other IPA controls where no changes are made in error conditions. Fixes: 0ee9339331c6 ("ipa: rpi: agc: Gracefully handle missing agc modes") Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
2023-06-07ipa: rpi: agc: Gracefully handle missing agc modesNaushir Patuck
If a metering/exposure/constraint mode is not listed in the sensor tuning file, and a control for the missing mode is set on the agc, we terminate the application with a fatal log message. Instead of this fatal termination, log a warning message and switch to the appropriate default mode so that the application continues running. Bug: https://github.com/raspberrypi/libcamera/issues/59 Bug: https://github.com/ayufan/camera-streamer/issues/67 Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-06-07ipa: rpi: agc: Use std::string instead of char arraysNaushir Patuck
Replace the char array strings in struct AgcStatus with std::string objects. This simplifies the string handling in the source code. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-05-04ipa: raspberrypi: agc: Move weights out of AGCDavid Plowman
The region weights for the the AGC zones are handled by the AGC algorithm. Apply them directly in the IPA (vc4.cpp) to the statistics that we pass to the AGC. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2023-05-04pipeline: ipa: raspberrypi: Refactor and move the Raspberry Pi codeNaushir Patuck
Split the Raspberry Pi pipeline handler and IPA source code into common and VC4/BCM2835 specific file structures. For the pipeline handler, the common code files now live in src/libcamera/pipeline/rpi/common/ and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/. For the IPA, the common code files now live in src/ipa/rpi/{cam_helper,controller}/ and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/. To build the pipeline and IPA, the meson configuration options have now changed from "raspberrypi" to "rpi/vc4": meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4 Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>