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2019-02-13cam: options: Fix coding style issue related to templatesLaurent Pinchart
Our coding style doesn't add a space after the template keyword. Fix the source code accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-13utils: checkstyle: Catch LOG() usage without an explicit categoryLaurent Pinchart
Add support for checkers not related to code formatting to the checkstyle.py script, and create a first checker that catches usage of the LOG() macro without an explicit category. 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>
2019-02-13clang-format: Remove space after templateLaurent Pinchart
Our coding style doesn't require a space after the template keyword. Adjust .clang-format accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-11libcamera: v4l2_device: Inherit from Loggable to print device node nameLaurent Pinchart
Automate printing of device node name in log messages by inheriting from the Loggable class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-11libcamera: log: Allow extending log messagesLaurent Pinchart
Introduce a base Loggable class that can be inherited from by other classes to support adding per-instance information to the log messages. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-11libcamera: pipeline_handler: Reorder member declaration orderLaurent Pinchart
Reorder the member declaration order in the PipelineHandler class to match the control flow order, and to declare variables after methods according to the coding style. Update the documentation accordingly, preserving the order within the public, protected and private sections, but grouping related methods together between the sections. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-08libcamera: pipeline: vimc: Fix name of pipeline handler classNiklas Söderlund
Rename the VIMC pipeline handler to match the naming convention. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06cam: Add option to write raw frames to diskNiklas Söderlund
Use the helper BufferWriter to optionally write frames to disk as they are captured. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06cam: Add BufferWriter helperNiklas Söderlund
Add a simpler helper to allow the cam application to write raw captured frames to disk. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06cam: Add capture operationNiklas Söderlund
Add an option to capture frames from a camera and keep it running until the user terminates by sending SIGINT. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: pipeline: ipu3: Implement capture supportJacopo Mondi
Replace the buffer allocation, capture start/stop and request queue stubs with real implementations. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> 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>
2019-02-06libcamera: pipeline: ipu3: Create video devices and subdevicesJacopo Mondi
Create the video devices and subdevices associated with an IPU3 camera. While at there, move the IPU3 pipeline handler class definition and the associated IPU3CameraData to a separate header as the class has now grown enough. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> 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>
2019-02-06libcamera: pipeline: vimc: Implement capture supportNiklas Söderlund
Replace the buffer allocation, capture start/stop and request queue stubs with real implementations. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: pipeline: vimc: Set a default formatNiklas Söderlund
Pick a default format for the one stream in a vimc camera. This is just a starting point to define a good default format for the vimc camera, and is expected to evolve over time as the capabilities of the library grows. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: pipeline: uvcvideo: Implement capture supportKieran Bingham
Replace the buffer allocation, capture start/stop and request queue stubs with real implementations. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: camera: Extend the interface to support captureNiklas Söderlund
In order to support capture, the camera needs methods to allocate and free buffers, to start and stop the capture and to queue requests. Define those interfaces in the Camera class and implement them to call the corresponding pipeline handler methods. Once a camera is started the pipeline handler of the camera will begin processing requests queued to the camera by the application until it gets stopped. Once a request is created it can be queued to the camera and the application will be notified asynchronously once the request is completed and be able to process all the buffers involved in the request. At this point the request objects don't support controls. This will be extended in the future. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: camera: Cache the stream configuration in the stream objectNiklas Söderlund
The API towards the application and pipeline handler can be simplified if the camera caches which streams have been selected and their respective configuration. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: camera: Add helper to check for exclusive accessNiklas Söderlund
Some operations on the camera requires the application to have exclusive access to the camera. To help check for this in these operations add a helper. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: pipeline_handler: Extend the interface to support captureNiklas Söderlund
In order to support capture, the pipeline handler needs methods to allocate and free buffers, to start and stop the capture and to queue requests. Define those interfaces in the PipelineHandler class and implement them as stubs in the existing pipeline handlers. This initial implementation only considers the allocation of new buffers. Future work would need to expand this to also cover importing buffers from an external source. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: Provide a Request objectJacopo Mondi
Implement a Request object used by applications to queue image capture requests to a camera. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06libcamera: stream: Add stream configuration to the stream objectNiklas Söderlund
Add a cache of the active stream configuration to the stream object. This cache is to be updated from the Camera object and can be accessed read only from both the application and pipeline handlers. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06libcamera: stream: Construct a streamKieran Bingham
Construct a stream object with a default internal pool. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06libcamera: Add V4L2SubdeviceJacopo Mondi
Add V4L2Subdevice class that provides an interface to interact with V4L2 defined sub-devices. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> 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>
2019-02-06libcamera: Add geometry.hJacopo Mondi
Add geometry-related definitions in the geometry.h internal header. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> 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>
2019-02-06libcamera: v4l2_device: Add comments to method parametersJacopo Mondi
Add missing parameter documentation for set and get format methods. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> 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>
2019-02-06libcamera: v4l2_device: Update dequeued buffer informationNiklas Söderlund
Copy the information from the struct v4l2_buffer when dequeueing the buffer as applications need this information to make sense of the captured data. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-02-06test: v4l2_device: Provide asynchronous capture testKieran Bingham
Utilise the event_dispatcher to create a default event loop, and process asynchronous buffer receive events. If no frames are captured in 5 seconds, the test will fail. It will also fail if less than 30 frames have been captured in the same timeout period. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06test: v4l2_device: Add StreamOn/StreamOff testKieran Bingham
Provide a small test to exercise the streamOn() and streamOff() calls. 8 buffers are requested locally. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06libcamera: v4l2_device: Implement stream{On,Off}Kieran Bingham
Support starting and stopping a stream on a V4L2 device. Buffers must be queued before the stream is started. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06libcamera: v4l2_device: Implement queue/dequeue operationsKieran Bingham
Provide queueBuffer() and dequeueBuffer() methods to interact with the V4L2Device. Buffers will be directly referenced from the bufferPool of the V4L2Device based on the index in the pool. The V4L2Device is now opened in non-blocking mode in order to avoid blocking the dequeueBuffer() method. A signal is emitted when a buffer is ready and has been dequeued. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06test: v4l2_device: Add request_buffers testKieran Bingham
Add a utility to the test suite to request and allocate buffers from a V4L2Device to ensure it functions correctly. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06libcamera: v4l2_device: Request buffers from the deviceKieran Bingham
Provide an exportBuffers() function which allocates buffers with the MMAP method, exports them using the dmabuf API and populates the given BufferPool. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06test: v4l2_device: Use DeviceEnumerator to find a UVCVideoKieran Bingham
Utilise the existing DeviceEnumerator system to identify a suitable V4L2Device for testing. Specifically target these tests at a uvcvideo driver based device as a known supported target. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-06libcamera: Add Buffer ManagementKieran Bingham
Provide classes that represent frame buffers and pools of frame buffers. An image within the system may use one or more Plane objects to track each plane in the case of multi-planar image formats. The Buffer class manages all of the data required to render or interpret the raw image data. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-05libcamera: v4l2_device: Improve documentationJacopo Mondi
Improve the V4L2DeviceFormat documentation as suggested during patches review. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-05libcamera: v4l2_device: s_format: Return the device formatJacopo Mondi
Return the device format actually applied to the device on setFormat(). Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-05libcamera: v4l2_device: Construct from MediaEntity*Jacopo Mondi
The V4L2Device constructor wants a "const MediaEntity &", while entities are usually retrieved by pointer before being used to construct a V4L2Device. Change the constructor argument to "const MediaEntity *". Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-04libcamera: pipeline: uvcvideo: set a default formatNiklas Söderlund
Pick a default format for the UVC one stream in a UVC camera. This is just a starting point to define a good default format for the UVC camera it's expected to evolve over time as the capabilities of the library grows. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-04libcamera: streams: extend stream configuration with buffer countNiklas Söderlund
The camera needs to be configured with the number of buffers required to satisfy the applications use case. While the application can request any number of buffers, the pipeline must take the constraints of the Linux driver into consideration. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-04libcamera: pipeline: vimc: create camera for Sensor BNiklas Söderlund
Create a camera for Sensor B of the vimc pipeline. At this stage only Sensor B is exposed while the are in total two sensors in the graph. Going forward Sensor A should also be exposed as another camera. Sensor B was chosen since the graph is configured correctly for it out of the box. As we lack control over sub devices formats it's not really possible to use Sensor A yet with the library. Once both cameras are registered with the library they should be extended to provide two streams each, one for the raw output and one for the output which uses the shared scaler. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-04clang-format: Enable BreakBeforeTernaryOperatorsKieran Bingham
This produces code with the ternary operators at the beginning instead of the end of the line: return caps_.isMultiplanar() ? getFormatMultiplane(fmt) : getFormatSingleplane(fmt); Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-04libcamera: camera: Fix spelling errorKieran Bingham
Fix a small typo in the camera object documentation. cameera -> camera Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-02-03libcamera: v4l2_device: Set bytesperline in single plane S_FMTJacopo Mondi
The 'bytesperline' field of 'struct v4l2_pix_format' has to be set for the single planar set format use case. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-03libcamera: v4l2_device: Zero-initialize V4L2 formatJacopo Mondi
Zero initialize v4l2_format structures used to set and get format on the V4L2 device. Fixes: ba8da0f2fcd0 ("libcamera: v4l2_device: Add methods to get/set format") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-03libcamera: v4l2_device: Rename plane format fieldsJacopo Mondi
Rename the number of valid plane formats to 'planesCount' and the actual per-plane size information array to 'planes'. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-03libcamera: v4l2_device: Rename parameters to s/g_fmtJacopo Mondi
Rename parameters to get and set format functions to expand 'fmt' to 'format'. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-03libcamera: v4l2_device: Fix getFormatSingleplane ioctlJacopo Mondi
The single plane getFormat() function wrongly used the VIDIOC_S_FMT ioctl. Fix that by using the more opportune VIDIOC_G_FMT one. Fixes: ba8da0f2fcd0 ("libcamera: v4l2_device: Add methods to get/set format") Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-03libcamera: v4l2_device: Rename format() method to getFormat()Jacopo Mondi
Rename format() to getFormat() to reflect the v4l2 API names more closely. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-02-01cam: options: Add explicit conversion methods to OptionValueLaurent Pinchart
The OptionValue class defines operators to convert the variant to all the supported option types. As a convenience, add explicit methods to perform the same operations, avoiding the need to write long static_cast<>() statements in the caller. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-02-01cam: Add --format option to configure a streamNiklas Söderlund
Add an option to configure the first stream of a camera from an argument with options and parse the width, height and pixel format from that list. The pixel format is still specified as a integer which should correspond to the kernels FOURCC identifiers. Going forward this should be turned into a string representation and the cam parser should translate between the two. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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