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Sensor frame length is made up of active and inactive (blanking) lines.
The minimum and maximum frame length values may be used by pipeline
handlers to limit frame durations based on the sensor mode capabilities.
Store the minimum and maximum allowable frame length values (in lines)
in the CameraSensorInfo structure. These values are computed in
CameraSensor::sensorInfo() by querying the sensor subdevice
V4L2_CID_VBLANK control limits. This in turn means that V4L2_CID_VBLANK
is now a mandatory subdevice control.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Rename the enum values to indicate pipeline handler -> IPA actions
(IPA_CONFIG_*) and IPA -> pipeline handler return results (IPA_RESULT_*).
Additionally, provide more descriptive names for these values.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Enable to test two Bayer formats for equality by checking if the order
of the color channels, the bit depth of the pattern, and the packing
scheme match. Additionally, add the reverse operation (!=), which negates
the equality test result.
Signed-off-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The new `fromV4l2PixelFormat` static member function renders an old
BayerFormat constructor useless, remove it together with the
`v4l2ToBayer` mapping table. The new function searches for a matching
mapped value instead of a matching key, therefore the `bayerToV4l2`
table is sufficient.
Signed-off-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a static member function to get the corresponding BayerFormat from a
given V4L2PixelFormat. The motivation behind this patch is to align the
overall structure of the BayerFormat class with other parts of the code
base, such as the V4L2PixelFormat class.
The downside of this change is a slightly worse time complexity, but
the upside is a smaller codebase and lower memory consumption. As the
function is probably not used very frequently, I tend to favor the
mentioned upsides.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Geometry classes generally have two sets of functions, one that operates
on the object and modifies it (e.g. Rectangle::scaleBy()), and one that
performs the same operations by instead return a modified copy of the
object, leaving the original untouched (e.g.Rectangle::scaledBy()). As
the names are close, they can easily be mistaken, with the const version
used instead of the in-place version.
To catch these errors at compile time, mark the const versions with
__nodiscard, as there is no use case for calling them without using the
result of the call.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The [[nodiscard]] attribute has been added to C++17. It can thus be used
inside libcamera, but would prevent applications compiled for C++14 to
use libcamera if the attribute was used in public headers.
To offer this feature when the application is compiled with a
recent-enough C++ version, as well as for compiling libcamera itself,
add a __nodiscard macro that expands as [[nodiscard]] when using C++17
or newer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Users are free to avoid loading certain control algorithms from the
json tuning file if they wish, and this could mean that some libcamera
controls will therefore not be available. Currently we don't have a
good means of indicating which these are, therefore failing completely
when an application tries to use one is unhelpful - it is better just
to issue a warning.
Note that once we can indicate this properly, applications should
check for supported controls as this change may be reverted.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Some applications may not be compliant with C++17 (Chromium, as an
example). Keep the C++17 features for libcamera internals, and C++14
compliance for public API.
This reverts commit 6cbdc2859963e17bc897a4022f1d68170477d888.
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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traits"
Some applications may not be compliant with C++17 (Chromium, as an
example). Keep the C++17 features for libcamera internals, and C++14
compliance for public API.
This reverts commit 8e42c2feb7ff7c350ffbbf97dd963dfd54e21faa.
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Expose the device backing the CameraSensor instance.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Use the libcamera core helper DelayedControls instead of the local
StaggeredCtrl. The new helper is modeled after the StaggeredCtrl
implementation and behaves the same.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Some sensor controls take effect with a delay as the sensor needs time
to adjust, for example exposure. Add an optional helper DelayedControls
to help pipelines deal with such controls.
The idea is to provide a queue of controls towards the V4L2 device and
apply individual controls with the specified delay with the aim to get
predictable and retrievable control values for any given frame. To do
this the queue of controls needs to be at least as deep as the control
with the largest delay.
The DelayedControls needs to be informed of every start of exposure.
This can be emulated but the helper is designed to be used with this
event being provide by the kernel through V4L2 events.
This helper is based on StaggeredCtrl from the Raspberry Pi pipeline
handler but expands on its API. This helpers aims to replace the
Raspberry Pi implementations and mimics it behavior perfectly.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
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At startup, ControlInfoMap::generateIdmap() threw a log message warning
that the controls::FrameDurations had a type mismatch based on the
min/max values provided in libcamera::RPi::Controls initialiser.
Fix this warning by forcing the integer constants to be 64-bit wide by
using the INT64_C() macro.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Some internals includes that used to be public still have the public
header guard. Rename it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Add support for setting V4L2_CID_VBLANK appropriately when setting
V4L2_CID_EXPOSURE. This will allow adaptive framerates during
viewfinder use cases (e.g. when the exposure time goes above 33ms, we
can reduce the framerate to lower than 30fps).
The minimum and maximum frame durations are provided via libcamera
controls, and will prioritise exposure time limits over any AGC request.
V4L2_CID_VBLANK is controlled through the staggered writer, just like
the exposure and gain controls.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The VIMC driver does not yet support all the features required
for all sensor drivers. As it is the main testing platforms and the
driver changes might take a long time to land in the developments
and testing platforms, temporary close the gap by skipping driver
validation and initializing properties with static information such
as the sensor resolution.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Add a const version of the MediaObject::dev() method to be able to
retrieve a pointer to a const MediaDevice from a constant instance of
a MediaObject sub-class.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Support for the V4L2 selection API is currently optional in the
CameraSensor class. Properties registered by using values read through
that API are defaulted in several different places (the Android camera
HAL or the CameraSensor class).
In the future support for the selection API will be made mandatory, but to
give time to sensor drivers in all test platforms to be updated, use
sensor resolution as fallback values for sensor pixel array properties
and cache them as class member variables.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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The CameraSensor class requires the sensor driver to report
information through V4L2 controls and through the V4L2 selection API,
and uses that information to register Camera properties and to
construct CameraSensorInfo class instances to provide them to the IPA.
Currently, validation of the kernel support happens each time a
feature is requested, with slighly similar debug/error messages
output to the user in case a feature is not supported.
Rationalize this by validating the sensor driver requirements in a
single function
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Track the state of streamon/streamoff calls to simplify error paths.
Ensuring that streamOff() can be called on non-streaming streams
facilitates simpler error code paths, where a set of devices can all
call streamOff regardless of their initialisation state.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <email@uajain.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>
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The existing implementation of the BayerFormat class supports
converting a V4L2PixelFormat to a BayerFormat and vice-versa.
Expand the class by adding support for converting a media bus code
to a BayerFormat instance, by providing a conversion table and a
dedicated static methods.
Do not provide support for converting a BayerFormat to a media bus code
as there's no 1-to-1 mapping between the two.
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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There are no users left of this field, drop it.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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There is no need to pass the Camera pointer to queueRequest(),
completeBuffer() and completeRequest() as the Request also passed
contains the same information. Remove the Camera argument to avoid
situations where the information in the Request and the argument differ.
There is no functional change and no public API change as the interface
is only used between the Camera and PipelineHandler.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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include/libcamera/internal/meson.build is missing two internal headers.
Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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C++17 has a std::size() function that returns the size of a C-style
array. Use it instead of the custom ARRAY_SIZE macro.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The fromEntityName() function returns a pointer to a newly allocated
V4L2Device instance, which must be deleted by the caller. This opens the
door to memory leaks. Return a unique pointer instead, which conveys the
API semantics better than a sentence in the documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The fromEntityName() function returns a pointer to a newly allocated
V4L2Subdevice instance, which must be deleted by the caller. This opens
the door to memory leaks. Return a unique pointer instead, which conveys
the API semantics better than a sentence in the documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Forward any controls passed into the pipeline handler to the IPA.
The IPA then sets up the Raspberry Pi controller with these settings
appropriately, and passes back any V4L2 sensor controls that need
to be applied.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This change allows controls passed into PipelineHandler::start to be
forwarded onto IPAInterface::start(). We also add a return channel if the
pipeline handler must action any of these controls, e.g. setting the
analogue gain or shutter speed in the sensor device.
The IPA interface wrapper isn't addressed as it will soon be replaced by
a new mechanism to handle IPC.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Applications now have the ability to pass in controls that need to be
applied on startup, rather than doing it through Request where there might
be some frames of delay in getting the controls applied.
This commit adds the ability to pass in a set of libcamera controls into
the pipeline handlers through the pipeline_handler::start() method. These
controls are provided by the application through the camera::start()
public API.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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If the IPA fails during configuration, return an error flag to the
pipeline handler and fail the use case gracefully.
At present, the IPA configuration can fail for the following reasons:
- The sensor is not recognised, and fails to open a CamHelper object.
- The pipeline handler did not pass in controls for the ISP and sensor.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Break out initialization to its own function in preparation to
add more properties.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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There's no user of the EventDispatcher (and the related EventNotifier
and Timer classes) outside of libcamera. Move those classes to the
internal API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The V4L2_EVENT_FRAME_SYNC event may occur on both V4L2 video-devices
(V4L2VideoDevice) and sub-devices (V4L2Subdevice). Move the start of
frame detection to the common base class of the two, V4L2Device.
There is no functional change.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Use the d-pointer infrastructure offered by the Extensible class to
replace the custom implementation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Use the d-pointer infrastructure offered by the Extensible class to
replace the custom implementation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The d-pointer design patterns helps creating public classes that can be
extended without breaking their ABI. To facilitate usage of the pattern
in libcamera, create a base Extensible class with associated macros.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The V4L2DeviceFormat class doesn't have a default constructor, neither
does it specifies default member initializers for the plane-related
members. This results in the planes array and planesCount members being
uninitialized by default, leading to undefined behaviour if the user of
the class doesn't initialize it explicitly.
Most users initialize V4L2DeviceFormat instances, but some don't. We
could fix them, but that would likely turn into a game of whack-a-mole.
As there's no use case for instantiating a large number of
V4L2DeviceFormat instances in a performance-critical code path, let's
instead add default initializers to avoid future issues.
While at it, define a type of the structures containing plane
information, and use an std::array.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add SPDX headers and copyright notices to the tracepoints definition
files.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add and use tracepoints in Request. Requests are core to libcamera
operation, thus detecting delays in their processing is important, and
serves as a good usage example of tracepoints.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Implement tracing infrastructure in libcamera. It takes .tp files, as
required by lttng, and generates a tracepoint header and C file, as lttng
requires. meson is updated accordingly to get it to compile with the
rest of libcamera. Update the documentation accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Following the C++17 practice, provide is_array_v<T> and is_span_v<T>
helper variable templates as shorter versions of is_array<T>::value and
is_span<T>::value, and use them through the code.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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C++17 introduces helper variable templates for type traits, allowing
shortening std::is_foo<T>::value to std::is_foo_v<T>. Use them through
the code base.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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During configure() we update the ScalerCropMaximum to the correct
value for this camera mode and work out the minimum crop size allowed
by the ISP.
Whenever a new ScalerCrop request is received we check it's valid and
apply it to the ISP V4L2 device. When the IPA returns its metadata to
us we add the ScalerCrop information, rescaled to sensor native
pixels.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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These functions are aimed at making it easier to calculate cropping
rectangles, particularly in order to implement digital zoom.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The C++20 std::span class, after which Span is modelled, specifies four
constructors as explicit when extent is not dynamic_extent. Align our
implementation with those requirements.
A careful reviewer may notice that this change addresses five
constructors, not four. The reason is that the two constructors taking
Container and const Container parameters are not specified in C++20,
which uses a single constructor taking a range parameter instead. As
ranges are not available in C++17, the Container constructors are our
best effort at providing a similar feature.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Initialize the ControlInfoMap of controls supported by the Raspberry Pi
pipeline handler and IPA using the list of the enumerated values instead
of specifying them manually.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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For each Control that supports enumerated values generate an array
of ControlValue which contains the full list of valid values.
At the expense of a slight increase in memory occupation this change
allows the construction of the ControlInfo associated with a Control
from the values list, defaulting the minimum and maximum values
reported by the ControlInfo.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Add a new constructor to the ControlInfo class that allows creating
a class instance from the list of the control valid values with
an optional default one.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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