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The `AeEnable` control is handled by the `Camera` class directly, but it
still has to be added because `ControlInfoMap`s are not easily modifiable.
See 338ba00e7abfe8 ("ipa: rkisp1: agc: Report new AeEnable control as available")
for more details and a similar change in rkisp1.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The two overloads of `find()` and `at()` have the same behaviour
regardless of the argument type: `unsigned int` or `const ControlId *`.
However, `count()` is not so because `count(unsigned int)` only checks
the `ControlIdMap`, and it does not check if the given id is actually
present in the map storing the `ControlInfo` objects.
So `count()` returns 1 for every control id that is present in the
associated `ControlIdMap` regardless of whether there is an actual
entry for the `ControlId` associated with the given numeric id.
Fix that by simply using `find()` to determine the return value.
Fixes: 76b9923e55fd61 ("libcamera: controls: Avoid exception in ControlInfoMap count() and find()")
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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As the gains can also be specified manually, the regulation can run into
numeric instabilities by dividing by near zero. Mitigate that by
applying a small minium value.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The AWB measurements are taken after the CCM. This can be seen by
enabling debug logging on AWB, disabling AWB (stats will still be
processed) and manually chaning the CCM.
This means that the estimated colour temperature and the corresponding
CCM also lead to changed rgbMeans which in turn leads to oscillations.
Fix that by applying the inverse transform on the rgbMeans.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Damp the regulation of the color temperature with the same factor as the
gains. Not damping the color temperature leads to visible flicker, as
the CCM changes too much.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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In the grey world AWB case, if no colour gains are contained in the
tuning file, the colour gains get reset to 1 when the colour temperature
is set manually. This is unexpected and undesirable. Allow the
gainsFromColourTemp() function to return a std::nullopt to handle that
case.
While at it, remove an unnecessary import from rkisp1/algorithms/awb.h.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Add a manual ColourCorrectionMatrix control. This was already discussed
while implementing manual colour temperature but was never implemented.
The control allows to manually specify the CCM when AwbEnable is false.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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In RkISP1Awb::process(), the color temperature in the active state is
updated every time new statistics are available. The CCM/LSC algorithms
use that value in prepare() to update the CCM/LSC. This is not correct
if the color temperature was specified manually and leads to visible
flicker even when AwbEnable is set to false.
To fix that, track the auto and manual color temperature separately in
active state. In Awb::prepare() the current frame context is updated
with the corresponding value from active state. Change the algorithms to
fetch the color temperature from the frame context instead of the active
state in prepare().
Fixes: 02308809548d ("ipa: rkisp1: awb: Implement ColourTemperature control")
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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In commit b60bd37b1a49 ("ipa: rkisp1: Move calculation of RGB means into
own function") the output of the current measured colour temperature as
metadata was incorrectly added. Remove it.
Fixes: b60bd37b1a49 ("ipa: rkisp1: Move calculation of RGB means into own function")
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Swap gains and automatic/manual in the IPAActiveState structure. This is
in preparation to adding another member, which is easier in the new
structure. The patch contains no functional changes.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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It is useful to multiply matrices and vectors of heterogeneous types, for
instance float and double. Extend the multiplication operator to support
this, avoiding the need to convert one of the operations. The type of the
returned vector is selected automatically to avoid loosing precision.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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It is useful to multiply matrices of heterogneous types, for instance
float and double. Extend the multiplication operator to support this,
avoiding the need to convert one of the matrices. The type of the
returned matrix is selected automatically to avoid loosing precision.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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For calculations in upcoming algorithm patches, the inverse of a matrix
is required. Add an implementation of the inverse() function for square
matrices.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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When one wants to create a Vector from existing data, currently the only
way is via std::array. Add a Span based constructor to allow creation
from std::vectors and alike.
While at it, replace the manual loop with std::copy.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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When one wants to create a Matrix from existing data, currently the only
way is via std::array. Add a Span based constructor to allow creation
from vectors and alike.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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When the AWB engine doesn't find a valid pixel because all pixels lie
outside the configured colour range it returns an AWB measurement value
of 255, 255, 255. This leaves the regulation in an unrecoverable state
noticeable by a completely green image. Fix that by skipping the AWB
calculation in case there were no valid pixels.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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GStreamer video-info calculated stride and offset may differ from
those used by the camera.
For stride and offset mismatch, this patch adds video meta to buffer
if downstream supports VideoMeta through allocation query. Otherwise,
create a internal VideoPool using the caps, and copy video frame to
this system memory.
Signed-off-by: Hou Qi <qi.hou@nxp.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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With the newly introduced `SDLTexture1Plane` it is easy to handle
any single-plane format that has an SDL equivalent. So use it for
more YUV and RGB formats.
The mapping of RGB formats is not entirely straightforward because
`SDL_PIXELFORMAT_ZZZ...888...` defines a format where the order of
the components is endian dependent, while libcamera's `ZZZ...888...`
formats are derived from the matching DRM formats, and the RGB formats
in question are defined to be little-endian there. So the
endian-independent `SDL_PIXELFORMAT_{ZZZ24,ZZZZ32}` are used.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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`SDLTextureYUYV` uses `SDL_PIXELFORMAT_YUY2`, which is a single plane
format. To support other single plane formats, replace `SDLTextureYUYV`
with `SDLTexture1Plane` that can be instantiated with an arbitrary SDL
pixel format and that uses `SDL_UpdateTexture()` to update the texture
using exactly a single plane.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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If the entire texture is to be updated, there is no need to specify
the target area explicitly.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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A non-owning span is sufficient, so use that instead of a vector.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Different base classes can be used for different setups on tests, but
all of them will need to setup the camera for the test. To reuse that
code, move it to a separate CameraHolder class that is inherited by test
classes.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de>
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The ControlInfo information for AwbEnable and ColourGains are declared
and exposed in the top-level IPA. These should instead be exposed by the
AWB part of the IPA, as it doesn't make sense to support these controls
when AWB is disabled, for example.
Move the declaration of these controls out of the top-level IPA and into
AWB.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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IPAs are expected to live within a directory that is searched by the
IPAManager. If other non-IPA so files are installed in the same
location, then the user may be presented with an error message reporting
that the module could not be parsed.
Move IPA modules to an ipa specific subdirectory to ensure we only parse
.so files that are expected to be IPA modules at load time.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=268
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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If the python bindings are built, then set the `PYTHONPATH` environmental
variable in the meson devenv accordingly to make it easy to use.
$ meson devenv -C build
[libcamera] $ echo $PYTHONPATH
/libcamera/build/src/py
[libcamera] $ python
Python 3.13.3 (main, Apr 9 2025, 07:44:25) [GCC 14.2.1 20250207] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import libcamera
>>> cm = libcamera.CameraManager.singleton()
[...]
[129:52:33.293860558] [4133380] INFO Camera camera_manager.cpp:326 libcamera v0.5.0+169-7dbe74b5-dirty (2025-05-01)
[...]
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Log the actual and requested buffers count in case of a V4L2 buffers
allocation error, when the requested buffers count could not be
allocated.
Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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In commit ee2b011b65c6 ("apps: cam: Try raw role if default viewfinder
role fails"), the viewfinder role is specified as the default if no role
is yet chosen.
This was unfortunately added by directly accessing the vector rather
than extending the size when the vector is empty. Fix the code to push
the default viewfinder role on to the back of the vector, increasing the
size appropriately.
Fixes: ee2b011b65c6 ("apps: cam: Try raw role if default viewfinder role fails")
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Tested-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The "fast" parameter has not been used since it first appeared in the
source code. And not only is it not used, but its retrieval from
the configuration since c1597f989654 ("ipa: raspberrypi: Use YamlParser
to replace dependency on boost") has been incorrect. So remove it.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
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The AeEnable control is now just a wrapper that is converted to
ExposureTimeMode and AnalogueGainMode controls instead. Therefore, it
should simply be ignored when we encounter it, without the need for
any warnings.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Extend the string representation of StreamConfiguration, as returned by
the toString() and operator<<() functions, with color space information.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
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Use the new MediaPipeline to manage and identify all sensors connected
to complex pipelines that can connect to the CSI2 receiver before the
ISP.
This can include chained multiplexors that supply multiple cameras, so
make use of the MediaDevice::locateEntities to search for all cameras
and construct a pipeline for each.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Stefan Klug <stefan.klug@ideasonboard.com>
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Provide a MediaPipeline class to help identifing and managing pipelines across
a MediaDevice graph.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
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Provide a helper on the MediaDevice to return a list of all
available entities which match a given function in the graph.
As a drive by, also fix a whitespace error in the documentation of
MediaDevice::setupLink.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
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cam currently defaults to the viewfinder role when no role is specified.
This means that on platforms that only support the raw role (such as a
raw sensor with no softISP on a simple pipeline platform),
generateConfiguration() would return nullptr and cam would bail out.
At least this is what is supposed to happen based on the little
documentation that we have written regarding generateConfiguration(),
specifically in the application writer's guide, which is probably the
most influential piece of documentation:
The ``Camera::generateConfiguration()`` function accepts a list of
desired roles and generates a ``CameraConfiguration`` with the best
stream parameters configuration for each of the requested roles. If the
camera can handle the requested roles, it returns an initialized
``CameraConfiguration`` and a null pointer if it can't.
Currently the simple pipeline handler will return a raw configuration
anyway (if it only supports raw) even if a non-raw role was requested.
Thus cam receives a raw configuration instead of a nullptr when no role
is specified and viewfinder is requested.
However, in the near future, support for raw streams with softISP on the
simple pipeline handler will be merged. This will notably change the
behavior of the simple pipeline handler to return nullptr if a non-raw
role was requested on a platform that only supports raw. This is proper
behavior according to documentation, but changes cam's behavior as it
used to capture fine with no parameters but will no longer be able to.
Technically this is an issue with the roles API, as we are mixing
roles in the sense of "configuration hints" (eg. viewfinder vs recording
vs still capture) with roles in the sense of "platform capabilities"
(raw vs everything else). In the long term the proper solution is to
rework the roles API.
In the meantime, fix cam so that it will try the raw role if the default
viewfinder role returns no configuration. cam is an app that is capable
of using the raw stream, so this is appropriate behavior. If roles are
specified, then do not retry, as in this situation the user knows what
streams they can use and what they want.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
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When libcamerasrc is negotiating with downstream element, it first
extracts colorimetry field from downstream supported caps, then set
this colorimetry to its stream configuration and propagates the
colorimetry downstream.
Currently libamerasrc only considers the case there is one colorimetry
in colorimetry field of downstream caps. But the issue is that
downstream caps may report a list of supported colorimetry, which
causes libcamerasrc to set unknown colorimetry to stream configuration
and negotiate fail with downstream element.
In order to fix the issue, need to fixate colorimetry field before
getting colorimetry string.
Signed-off-by: Hou Qi <qi.hou@nxp.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The `signature()` getter can just return a reference to the private vector
member variable, and let the caller make a copy if needed. Since the
return type is const qualified, this was likely the original intention.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The vblank delay for delayed controls was incorrectly hardcoded to 1.
Get it from the camera sensor properties instead.
Fixes: f72c76eb6e06 ("rkisp1: Honor the FrameDurationLimits control")
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This reverts commit e85c7ddd38ce8456ab01c2a73baf9e788f6a462e.
Linux kernel predating 6.4 (specifically commit 7cfb35d3a800 ("media:
rkisp1: Implement ENUM_FRAMESIZES") do not have the ioctl in rkisp1
driver required to dynamically query the resizer limits.
Because of that, maxResolution and minResolution are both {0, 0}
(default value for Size objects) which means filterSensorResolution()
will create an entry for the sensor in sensorSizesMap_ but because the
sensor resolution cannot fit inside the min and max resolution of the
rkisp1, no size is put into this entry in sensorSizesMap_.
On the next call to filterSensorResolution(),
sensorSizesMap_.find(sensor) will return the entry but when attempting
to call back() on iter->second, it'll trigger an assert because the size
array is empty.
Linux kernel 6.1 is supported until December 2027, so it seems premature
to get rid of those hard-coded resizer limits before this happens.
Let's restore the hard-coded resizer limits as fallbacks, actual limits
are still queried from the driver on recent enough kernels.
Fixes: 761545407c76 ("pipeline: rkisp1: Filter out sensor sizes not supported by the pipeline")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
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>
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`std::vector<bool>` is a specialization that implements a dynamic
bit vector, therefore it is not suitable to provide storage for
an array of `bool`. Hence a statically sized array is used when
parsing an array of boolean values.
Instead, use the array overload of `std::make_unique` since the
size is known beforehand.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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The `mbusCodes` variable in `ISICameraConfiguration::validateRaw()`
has been unused since
87fed432533a ("libcamera: imx8-isi: Break out RAW format selection"),
so remove it.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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pass -> parse
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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A colour correction matrix (CCM) is applied like this to an RGB pixel
vector P:
CCM * P
White balance must be applied before CCM. If CCM is used, software ISP
makes a combined matrix by multiplying the CCM by a white balance gains
CCM-like matrix (WBG). The multiplication should be as follows to do it
in the correct order:
CCM * (WBG * P) = (CCM * WBG) * P
The multiplication order in Lut software ISP algorithm is reversed,
resulting in colour casts. Let's fix the order.
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Commit 294ead848c3fa2 ("libcamera: Add gamma control id")
introduced the "Gamma" control, so expose it for UVC
cameras as well using the `V4L2_CID_GAMMA` control.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Use `try_emplace()` that more or less combines `find()` and `operator[]`
in one function.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Rename the `SingleStream` test to `SimpleCapture`, and extend it
to support using multiple roles. And instantiate another test suite
from the `SimpleCapture` test that tests multiple streams in one
capture session.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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Prepare to add a test suite for capture operations with multiple
streams.
Modify the Capture helper class to support multiple roles and streams
in the configure() and capture() operations. The buffer count
of each stream is asserted to be the same.
Multi-stream support will be added in next patches.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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The computed AWB gains are applied when constructing LUT tables rather
than in awb.cpp itself. This can look confusing when reading awb.cpp,
let's add a clarifying comment.
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The interQuantileMean() is supposed to return a weighted mean value
between two quantiles. This works for fine histograms, but fails for
coarse histograms and small quantile ranges because the weight is always
taken from the lower border of the bin.
Fix that by rewriting the algorithm to calculate a lower and upper bound
for every (partial) bin that goes into the mean calculation and weight
the bins by the middle of these bounds.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The calculation of the frac variable is based solely on integers and
therefore results in the fractional part being either 0 or 1.
In the original code from RaspberryPi this is mitigated by casting the
nominator to a double. This works for most cases, but fails when q is
very small because of the quantization introduced by item being an
integer.
Fix both issues by doing the full calculation in double and remove the
should_fail tag.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Similar like in other pipelines (IPU3, rpi) avoid using stale
values of DelayedControls class when the same camera is started
second time.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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