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2020-08-03libcamera: geometry: Add isNull() function to Rectangle classJacopo Mondi
It's common for code to check if a rectangle is null. Add a helper function to do so and test the function in test/geometry.cpp Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-08-03libcamera: utils: Add alignUp and alignDown functionsJacopo Mondi
Add to libcamera utils library two functions to round up or down a value to an alignment and add a test in test/utils.cpp for the two new functions. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-08-03libcamera: ipu3: Rename mbusCodesToInfoJacopo Mondi
The mbusCodesToInfo map actually maps media bus codes to PixelFormat instances. Rename the map according to its actual function and while at it drop the 'static' keyword as the map is already defined in an anonymous namespace. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-08-03libcamera: device_enumerator_udev: Initialize monitor_ and notifier_ to nullptrNiklas Söderlund
The monitor_ and notifier_ pointers are acted on in the destructor if not set to nullptr, the pointers are however first initialized in init() and enumerate(). Avoid acting on uninitialized pointers by initializing them to nullptr in the constructor. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com>
2020-08-03libcamera: device_enumerator_udev: Align class final declaration with sysfs ↵Niklas Söderlund
subclass Instead of marking each individual overloaded function with final mark the whole class as final. This aligns the sysfs and udev based DeviceEnumerator implementations. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com>
2020-07-31libcamera: camera: Ensure deletion via deleteLater()Umang Jain
Object::deleteLater() ensures that the deletion of the Object takes place in a thread it is bound to. Deleting the Object in a different thread is a violation according to the libcamera threading model. On hot-unplug of a currently streaming camera, the last reference of Camera when dropped from the application thread (for e.g. QCam's thread), the destructor is then called from this thread. This is not allowed by the libcamera threading model. Camera is meant to be deleted in the thread it is bound to - in this case the CameraManager's thread. Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-31tests: Add a test case for the Object::deleteLater() API, to verifyUmang Jain
- the object is deleted from the correct thread - multiple deleteLater() calls delete the object once only Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-31libcamera: object: Add deleteLater() supportUmang Jain
This commit adds support to schedule the deletion of an Object to the thread it is bound to (similar to [1]). An Object getting destroyed by a different thread is considered as a violation as per the libcamera threading model. This will be useful for an Object where its ownership is shared via shared pointers in different threads. If the thread which drops the last reference of the Object is a different thread, the destructors get called in that particular thread, not the one Object is bound to. Hence, in order to resolve this kind of situation, the creation of shared pointer can be accompanied by a custom deleter which in turns use deleteLater() to ensure the Object is destroyed in its own thread. [1] https://doc.qt.io/qt-5/qobject.html#deleteLater Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-31libcamera: thread: Support selective message dispatch to threadUmang Jain
Extend the current dispatchMessages() to support dispatching of selective messsages according to the Message::Type passed in the function argument. dispatchMessages() can now be called explicitly to force deliver selected type's message to the thread for processing (typically when event loop is not running). Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-31libcamera: properties: Define pixel array propertiesJacopo Mondi
Add definition of pixel array related properties. Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Ricardo Ribalda <ricardo@ribalda.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-28test: Remove list-cameras testLaurent Pinchart
The list-cameras test case is the very first test case that has been added to libcamera. It has served to start the development of the unit tests infrastructure. Since then, libcamera has grown several tests that cover the same API, and more. It's time for list-cameras to retire. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-07-27test: process: Test Process::kill()Laurent Pinchart
Add a test to ensure that Process::kill() on an unstarted process is safe. This aims at ensuring we don't kill other processes unexpectedly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-27qcam: Fix camera reference leak on hot-unplugUmang Jain
If the currently streaming camera is hot-unplugged, a camera reference was still held by MainWindow::camera_, preventing it to be destructed, until qcam window is closed. Plug the leak in the hot-unplug handler itself. Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27libcamera: event_notifier: Fix signature typo setEnabled() in documentationUmang Jain
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: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27libcamera: pipeline: simple: Try next mbus code if setupFormats() failsAndrey Konovalov
Now SimpleCameraData::setupFormats() can fail if the camera sensor supports media bus code which some entities down the pipeline don't. When this happens continue with the next media bus code instead of aborting the enumeration of the possible pipeline configurations. Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27libcamera: pipeline: simple: Make sure the formats at the link's pads matchAndrey Konovalov
Change SimpleCameraData::setupFormats() to return -EINVAL if the sink pad of the link doesn't support the format set on the source pad of this link. Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27libcamera: pipeline: simple: Setup links outside for format try loopLaurent Pinchart
The SimpleCameraData::init() function needs to setup links along the pipeline, but doesn't need to repeat that operation for each media bus code it tries. Move the link setup before the loop. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-07-27libcamera: Add support for 16-bit Bayer formatsNiklas Söderlund
Add support for 16-bit Bayer formats. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27include: drm_fourcc: Add 16-bit Bayer FourCCNiklas Söderlund
The patch trying to upstream Bayer formats to the DRM FourCC header file in Linux left out the 16-bit formats, add them. This addition will be included in the next version of the DRM Bayer patch sent out. Intention is to merge this in libcamera and update the header file once the upstream patch is picked up. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27cam: Add optional argument to --capture to specify how many frames to captureNiklas Söderlund
Extend the '--capture' option with and optional numerical argument to be able to specify how many frames to capture before exiting. If the optional argument is not provided the old behavior of running until the user interrupts with a SIGINT is retained. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27cam: capture: Cache the EventLoop handlerNiklas Söderlund
Prepare for the ability to exit the event loop based on conditions in the request complete handler by caching the pointer instead of passing it as an argument. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27cam: Add option to disallow adjusting of requested formatsNiklas Söderlund
Add a '--strict-formats' option which fails the camera configuration step if the format is adjusted, Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-27libcamera: request: Add log point on a completed requestNaushir Patuck
Add a debug log point to indicate a request has completed. 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>
2020-07-27libcamera: process: Fix killing innocent processes unexpectedlyYou-Sheng Yang
When a libcamera::process is being destructed or called kill() without a previous successful call to start(), it's pid_ may remains -1, which causes all the killable processes being killed when passed to `kill(pid_, SIG_KILL)`. Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-27qcam: Fix spellingYou-Sheng Yang
Fix a typo in the word "Unsupported". Signed-off-by: You-Sheng Yang <vicamo.yang@canonical.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-25libcamera: qcam: Improve colour information in DNG filesDavid Plowman
This patch improves the colour information recorded in DNG files using the ColourCorrectionMatrix metadata for the image. Note that we are not supplying a full calibration using two illuminants, nonetheless the single matrix here appears to be respected by a number of tools. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-25libcamera: raspberrypi: Add ColourCorrectionMatrix controlDavid Plowman
Implements, for the Raspberry Pi platform, the returning of the CCM (Colour Correction Matrix) used by the pipeline in the libcamera metadata. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-25libcamera: Add ColourCorrectionMatrix controlDavid Plowman
This control is principally for returning, in the image metadata, the CCM (Colour Correction Matrix) used by the imaging pipeline. By which we mean the 3x3 matrix that is applied to the camera RGB pixels after subtraction of black levels and white-balancing, but before any gamma transformation. Some implementations may also choose to let an application set explicit colour matrices, using this as a control. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-24android: camera_device: Add ANDROID_REQUEST_MAX_NUM_INPUT_STREAMSNiklas Söderlund
Define the ANDROID_REQUEST_MAX_NUM_INPUT_STREAMS to zero to inform users the HAL does not support any reprocessing. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-24android: camera_device: Remove scaler format information from Camera3FormatNiklas Söderlund
The scaler format information was only used for the ANDROID_SCALER_AVAILABLE_FORMATS tag which is deprecated and removed. As it has no other users remove it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-24android: camera_device: Use HAL_PIXEL_FORMAT_* defines for formatsNiklas Söderlund
The documentation says the HAL_PIXEL_FORMAT_* defines shall be used for formats instead of ANDROID_SCALER_AVAILABLE_FORMATS_* for the ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS and ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS tags. This have worked in the past as the numerical value of the two sets are the same for the formats supported. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-24android: camera_device: Remove ANDROID_SCALER_AVAILABLE_FORMATSNiklas Söderlund
According to the documentation the tag ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS deprecates the ANDROID_SCALER_AVAILABLE_FORMATS tag. As the HAL implements both tags remove the deprecated one. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-24libcamera: formats: Remove unnecessary explicit constructor callsLaurent Pinchart
When initializing the PixelFormatInfo::format field with a PixelFormat, there's no need to call the PixelFormat (copy) constructor explicitly. Remove the unnecessary calls. 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>
2020-07-23libcamera: v4l2_videodevice: Add using statement for format mapNiklas Söderlund
Define a using statement for the format maps returned by V4L2Device::formats() and use it in all call sites. There is no functional change in this patch. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-23libcamera: formats: Remove ImageFormatsNiklas Söderlund
The ImageFormats helper class is not used anymore and can be removed. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-23libcamera: v4l2_subdevice: Replace ImageFormats with a mapNiklas Söderlund
Replace the V4L2Subdevice usage of the ImageFormats class with a std::map and the utils::map_keys() helper. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-21libcamera: Add support for RGB565 formatNiklas Söderlund
Add support for RGB565 format. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-21libcamera: Add support for planar YVU420 formatNiklas Söderlund
Add support for planar YVU420. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-07-17libcamera: pipeline: ipa: raspberrypi: Use dma heap allocs for LS tablesNaushir Patuck
Remove use of vcsm allocations and replace with dma heap allocations. The pipeline handler now passes the fd of the allocation over to the IPA instead of the raw pointer. Also use libcamera::FileDescriptor for fd lifetime management. This commit must be built alongside the accompanying BCM2835 ISP kernel driver changes at https://github.com/raspberrypi/linux/pull/3715. Otherwise a mismatch will cause undefined behavior. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-17include: linux: Add dma-buf.h and dma-heap.h UAPI headersNaushir Patuck
This commit adds the dmabuf UAPI headers from the mainline Linux kernel v5.6.19. They are required by the Raspberry Pi library for lens shading table allocations. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-17tests: v4l2_compat: Fix v4l2-compliance and v4l2-ctl version parsingPaul Elder
v4l2-compliance originally printed the SHA before the version, leading to the indexing that was used previously. Now that the version is printed before the SHA, the indexing is incorrect. Fix this. Although v4l2-ctl doesn't suffer the same issue, it is more correct to use the zeroth index like the v4l2-compliance version check now does, so fix that as well. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-17libcamera: ipa_proxy: Allow stop() on a stopped IPALaurent Pinchart
To make error handling easier in callers, allow the stop() function to be called when the proxy is already stopped, or not started yet. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-07-17libcamera: pipeline: raspberrypi: Start IPA when starting cameraLaurent Pinchart
The IPA is meant to be started when starting the camera, and stopped when stopping it. It was so far started early in order to handle the IPAInterface::processEvent() call related to lens shading table allocation before IPAInterface::configure() to pass the table to the IPA. Now that the lens shading table is passed through configure(), starting the IPA early isn't needed anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
2020-07-17ipa: raspberrypi: Pass sensor config back from configure()Laurent Pinchart
The Raspberry Pi IPA uses the custom RPI_IPA_ACTION_SET_SENSOR_CONFIG frame action to send the sensor staggered write configuration to the pipeline handler when the IPA is configured. Replace this ad-hoc mechanism by passing the corresponding data back from the IPA to the pipeline handler through the configure() response. This allows synchronous handling of the response on the pipeline handler side. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
2020-07-17ipa: raspberrypi: Pass lens shading table through configure() functionLaurent Pinchart
The IPAInterface::configure() function now accepts custom configuration data. Use it to pass the lens shading table instead of using a custom IPA event. This will allow starting the IPA when starting the camera, instead of pre-starting it early in order to process the lens shading table allocation event. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
2020-07-17ipa: raspberrypi: Drop CameraHelper::GetOrientation()Laurent Pinchart
The camera sensor orientation is now handled by the pipeline handler. Drop hardcoded per-sensor orientations from the IPA. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
2020-07-17libcamera: pipeline: raspberrypi: Set sensor flip based on rotationLaurent Pinchart
Instead of receiving sensor orientation configuration from the IPA, retrieve it from the CameraSensor Rotation property, and configure the HFLIP and VFLIP controls accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
2020-07-17libcamera: pipeline: raspberrypi: Move configureIPA() to RPiCameraDataLaurent Pinchart
The PipelineHandlerRPi::configureIPA() function accesses plenty of member data from the RPiCameraData class and no member from the PipelineHandlerRPi class. Move it to RPiCameraData where it logically belongs. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-17libcamera: pipeline: raspberrypi: Constify parameter to StaggeredCtrl::set()Laurent Pinchart
The controls parameter of StaggeredCtrl::set(), passed by reference, is not modified by the function. Make it const. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-17libcamera: pipeline: raspberrypi: Drop unused local variableLaurent Pinchart
The controls variable in PipelineHandlerRPi::start() is unused. Drop it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
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