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path: root/src/libcamera/pipeline/rkisp1
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2020-04-28ipa: Pass IPA initialization settings to IPAInterface::init()Laurent Pinchart
Add a new IPASettings class to pass IPA initialization settings through the IPAInterface::init() method. The settings currently only contain the name of a configuration file, and are expected to be extended later. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-04-14libcamera: pipeline: rkisp1: Call IPA start() and stop()Niklas Söderlund
Call the IPA start()/stop() functions before/after the camera is started. This makes sure the IPA functions properly once thread management is moved into the start/stop interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Do not try to process cancelled framesNiklas Söderlund
There is no need to try and process cancelled frames, try to finish as quickly as possible. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Add clear() to RkISP1FramesNiklas Söderlund
When the camera is stopping the helper that keeps track of which buffers are associated with a request is not cleared. Add a clear operation and call it when the camera is stopped. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Initialize IPANiklas Söderlund
The IPA init() call is a no-op in the current IPA, but it's part of the IPA API and it should be called. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-04-14libcamera: pipeline: rkisp1: Queue parameters even if they are not readyNiklas Söderlund
If the IPA has not filled in the parameters buffer still queue it to hardware. Not queuing the buffer results in the pipeline and hardware going out of sync. This is not a permanent fix of the problem and a todo is added to fix it properly. This change does not make the situation worse as the state of the pipeline is just as unknown as if no param buffer is queued as if one with old content in it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-20libcamera: pipeline: rkisp1: Don't enable immutable linkHelen Koike
Link between resizer and capture is immutable and doesn't need to be enabled. Signed-off-by: Helen Koike <helen.koike@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-03-20libcamera: pipeline: rkisp1: Use correct buffer count when importing buffersNiklas Söderlund
When folding buffer management with start/stop the wrong variable was passed to importBuffers() resulting in only one buffer being imported for the video node making capture impossible. Fix this by first renaming the confusingly named variable 'count' to 'ipaBufferId'. And then reusing the 'count' name for the buffer count. While at it remove the loop to find the maximum value of buffers from the single stream used by the pipeline. Once we add more stream this needs to be reworked anyhow so keep it simple for now. Fixes: 33fedea818e2b6a9 ("libcamera: pipeline_handler: Fold buffer management with start/stop") Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-19libcamera: v4l2_videodevice: Make V4L2PixelFormat constructor explicitLaurent Pinchart
To achieve the goal of preventing unwanted conversion between a DRM and a V4L2 FourCC, make the V4L2PixelFormat constructor that takes an integer value explicit. All users of V4L2 pixel formats flagged by the compiler are fixed. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-03-19libcamera: v4l2_videodevice: Rename toV4L2Fourcc to toV4L2PixelFormatLaurent Pinchart
Now that the functions return a V4L2PixelFormat, adapt their name accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-03-18libcamera: pipeline_handler: Fold buffer management with start/stopLaurent Pinchart
There's no need anymore to have the Camera object control how and when pipeline handlers allocate and free the buffers for the application-facing video devices. Fold those operations, currently performed by importFrameBuffers() and freeFrameBuffers(), into the start() and stop() functions. This simplifies the pipeline handler API, its implementation, and the implementation of the Camera class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-03-18libcamera: pipeline_handler: Decouple buffer import and exportLaurent Pinchart
Use the V4L2 buffer orphaning feature, exposed through V4L2VideoDevice::exportBuffers(), to decouple buffer import and export. The PipelineHandler::importFrameBuffers() function is now called for all streams regardless of whether exportFrameBuffers() has been called or not. This simplifies the Camera implementation slightly, and opens the door to additional simplifications. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-03-18libcamera: v4l2_videodevice: Rename exportBuffers() to allocateBuffers()Laurent Pinchart
To prepare for the rework of buffer allocation that will differentiate export and allocation, rename exportBuffers() to allocateBuffers(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-03-18libcamera: PixelFormat: Make constructor explicitLaurent Pinchart
To achieve the goal of preventing unwanted conversion between a DRM and a V4L2 FourCC, make the PixelFormat constructor that takes an integer value explicit. All users of pixel formats flagged by the compiler are fixed. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-03-18libcamera: pixelformats: include linux/drm_fourcc.hNiklas Söderlund
Instead of having to include linux/drm_fourcc.h everywhere a DRM FourCC is used in conjunction with PixelFormat include the header directly in pixelformats.h. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-03-18libcamera: Use PixelFormat instead of unsigned int where appropriateNiklas Söderlund
Use the PixelFormat instead of unsigned int where a pixel format is to be used. PixelFormat is defined as an unsigned int but is about to be turned into a class to add functionality. There is no functional change in this patch. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-02-14libcamera: pipeline_handler: Add Camera propertiesJacopo Mondi
Associate to each Camera a ControlList which contains the Camera properties as created by pipeline handlers in the pipeline handler's CameraData and provide an operation to retrieve them. Collect properties from the camera sensor in all pipeline handlers that support one (IPU3, RKISP1 and VIMC). Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-02-13libcamera: pipeline: rkisp1: sync topology with upstream driverHelen Koike
rkisp1 kernel driver was merged upstream with minor changes in the topology from the original driver libcamera based it's first support to rkisp1. Adapt libcamera pipeline to work with upstream driver. * Remove subdevice dphy from the pipeline. * Add resizer in the pipeline. * Fix links. * Update entity names. Signed-off-by: Helen Koike <helen.koike@collabora.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-14libcamera: Switch from utils::make_unique to std::make_uniqueLaurent Pinchart
Now that we're using C++-14, drop utils::make_unique for std::make_unique. 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>
2020-01-12libcamera: pipeline: Remove explicit buffer handlingNiklas Söderlund
With the FrameBuffer interface in place there is no need for the Camera to call into the specific pipelines allocation and freeing of buffers as it no longer needs to be synchronized with buffer allocation by the application. Remove the function prototypes in the pipeline handler base class and fold the functionality in the pipelines start() and stop() functions where needed. A follow up patch will remove the now no-op Camera::allocateBuffers() and Camera::freeBuffers(). Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: v4l2_videodevice: Remove Buffer interfaceNiklas Söderlund
The Buffer interface is no longer in use and can be removed. While doing so clean up the two odd names (dequeueFrameBuffer() and queuedFrameBuffers_) that had to be used when adding the FrameBuffer interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: Switch to FrameBuffer interfaceNiklas Söderlund
Switch to the FrameBuffer interface where all buffers are treated as external buffers and are allocated outside the camera. Applications allocating buffers using libcamera are switched to use the FrameBufferAllocator helper. Follow-up changes to this one will finalize the transition to the new FrameBuffer interface by removing code that is left unused after this change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: pipeline: Add FrameBuffer handlersNiklas Söderlund
Extend the pipeline handlers to support the FrameBuffer API with three new methods to handle allocation, importing and freeing of buffers. The new methods will replace allocateBuffers() and freeBuffers(). The FrameBuffer API will use the methods on a stream level and either allocate or import buffers for each active stream controlled from the Camera class and an upcoming FrameBufferAllocator helper. With this new API the implementation in pipeline handlers can be made simpler as all streams don't need to be handled in allocateBuffers(). Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: pipeline: rkisp1: Switch to FrameBuffer interface for stat and paramNiklas Söderlund
The V4L2VideoDevice class can now operate using a FrameBuffer interface, switch the RkISP1 statistics and parameters buffer to use it. We can not convert the application-facing buffers yet. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: pipeline: rkisp1: Destroy frame information before completing requestNiklas Söderlund
It's common for applications to create and queue a new request in a previous request completion handler. When the new request gets queued to the RkISP1 pipeline handler it tries to find a parameters and statistic buffer to be used with the request. The problem is if the pipeline depth is already filled there are no internal buffers free to be used by the new request. This was solved by allocation one more parameters and statistic buffer then the pipeline depth, this is waste full. Instead free the resources of the request that has completed before it is signaled to the application, this way if the pipeline depth is full it can reuse the internal resources and the wasteful allocation can be removed. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Move captured metadata to FrameMetadataNiklas Söderlund
Move the metadata retrieved when dequeuing a V4L2 buffer into a FrameMetadata object. This is done as a step to migrate to the FrameBuffer interface as the functions added to Buffer around FrameMetadata match the ones in FrameBuffer. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Switch from Plane to FrameBuffer::PlaneNiklas Söderlund
It is not libcamera's responsibility to handle memory mappings. Switch from the soon to be removed Plane class which deals with memory mappings to FrameBuffer::Plane which just describes it. This makes the transition to the full FrameBuffer easier. As the full FrameBuffer interface has not yet spread to all parts of libcamera core it is hard to create efficient caching of memory mappings in the qcam application. This will be fixed in a later patch, for now the dmabuf is mapped and unmapped each time it is seen by the application. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12ipa: Switch to FrameBuffer interfaceNiklas Söderlund
Switch the IPA interfaces and implementations to use the Framebuffer interface. - The IPA interface is switched to use the simpler FrameBuffer::Plane container when carrying dmabuf descriptions (fd and length) over the pipeline/IPA boundary. - The RkISP1 IPA implementation takes advantage of the new simpler and safer (better control over file descriptors) FrameBuffer interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-12-16libcamera: pipelines: Align bookkeeping in queueRequest()Niklas Söderlund
Expecting pipeline handler implementations of queueRequest() to call the base class queueRequest() at the correct point have led to different behaviors between the pipelines. Fix this by splitting queueRequest() into a base class implementation which handles the bookkeeping and a new queueRequestDevice() that is to be implemented by pipeline handlers and only deals with committing the request to the device. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-11-20ipa: Pass ControlInfoMap references to IPAInterface::configure()Laurent Pinchart
The IPAInterface::configure() operation receives a map of ControlInfoMap instances. Pass const references instead to avoid copies when not required (the callee can still make manual copies), and to allow for the future serialization layer to keep references to the original object. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-28libcamera: Switch PixelFormat to DRM FourCC valuesJacopo Mondi
Use DRM FourCC values for the newly defined PixelFormat. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-10-15libcamera: controls: Merge ControlInfoMap and V4L2ControlInfoMapLaurent Pinchart
The ControlInfoMap and V4L2ControlInfoMap classes are very similar, with the latter adding convenience accessors based on numerical IDs for the former, as well as a cached idmap. Both features can be useful for ControlInfoMap in the context of serialisation, and merging the two classes will further simplify the IPA API. Import all the features of V4L2ControlInfoMap into ControlInfoMap, turning the latter into a real class. A few new constructors and assignment operators are added for completeness. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-13libcamera: ipa: Merge controls and v4l2controls in IPAOperationDataLaurent Pinchart
Now that the V4L2ControlList is merely a helper to construct a ControlList for V4L2 controls, without any data member, all controls can be transferred between pipeline handlers and IPAs using ControlList only. Remove the v4l2controls member for IPAOperationData and use the control member instead. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-13libcamera: pipeline: rkisp1: Avoid copy assignment of V4L2 control mapLaurent Pinchart
Use the std::map::emplace() method to avoid unnecessary creation of an empty V4L2ControlInfoMap folled by a copy assignment. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-11libamera: pipeline: rkisp1: timeline: Fix compilation with gcc-[56]Laurent Pinchart
With gcc 5 and 6, insertion in a std::multimap copies the pair passed as an argument to the insert() method. As the mapped type is a non-copyable std::unique_ptr<>, this fails to compile. Compilation with newer gcc versions succeed due to support for C++-17 and the fix described in https://cplusplus.github.io/LWG/issue2354. To support gcc 5 and 6, fix the issue by using std::multimap::emplace(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-11libcamera: pipeline: rkisp1: Attach to an IPANiklas Söderlund
Add the plumbing to the pipeline handler to interact with an IPA module. This change makes the usage of an IPA module mandatory for the rkisp1 pipeline. The RkISP1 pipeline handler makes use of a timeline component to schedule actions. This might be useful for other pipeline handlers going forward so keep the generic timeline implementation separate to make it easy to break out. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-08-09libcamera: pipeline: RKISP1 configure isp output padHelen Koike
ISP output pad should be set to YUYV8_2X8 for non-bayer output format. Bayer formats are not listed in RkISP1CameraConfiguration::validate(), only non-bayer are listed, so we can set YUYV8_2X8 directly. This will need to be changed if we add support for bayer output with libcamera. Signed-off-by: Helen Koike <helen.koike@collabora.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-07-14libcamera: pipeline: Support importing buffersJacopo Mondi
Add support for importing external buffers in all pipeline handlers. Use the stream memory type in the pipeline handlers during buffer allocation to import buffers to or export buffers from the video device. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-07-14libcamera: v4l2_videodevice: Signal buffer completion at streamoff timeLaurent Pinchart
When stopping the stream buffers have been queued, in which case their completion is never be notified to the user. This can lead to memory leaks. Fix it by notifying completion of all queued buffers with the status set to error. As a result the base PipelineHandler implementation can be simplified, as all requests complete as the result of stopping the stream. The stop() method that manually completes all queued requests isn't needed anymore. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-07-14libcamera: pipeline_handler: Simplify request completionLaurent Pinchart
libcamera guarantees that requests complete in sequence. This requirement is currently pushed down to pipeline handlers. Three out of four of our pipeline handlers implement that requirement based on the sole assumption that buffers will always complete in sequeuence, while the IPU3 pipeline handler implements a more complex logic. It turns out that the logic can be moved to the base PipelineHandler class with support from the Request class. Do so to simplify the pipeline handlers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-06-19libcamera: Rename V4L2Device to V4L2VideoDeviceJacopo Mondi
In preparation of creating a new V4L2Device base class, rename V4L2Device to V4L2VideoDevice. This is a project wide rename without any intended functional change. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-05-23libcamera: camera: Add a validation API to the CameraConfiguration classLaurent Pinchart
The CameraConfiguration class implements a simple storage of StreamConfiguration with internal validation limited to verifying that the stream configurations are not empty. Extend this mechanism by implementing a smart validate() method backed by pipeline handlers. This new mechanism changes the semantic of the camera configuration. The Camera::generateConfiguration() operation still generates a default configuration based on roles, but now also supports generating empty configurations to be filled by applications. Applications can inspect the configuration, optionally modify it, and validate it. The validation implements "try" semantics and adjusts invalid configurations instead of rejecting them completely. Applications then decide whether to accept the modified configuration, or try again with a different set of parameters. Once the configuration is valid, it is passed to Camera::configure(), and pipeline handlers are guaranteed that the configuration they receive is valid. A reference to the Camera may need to be stored in the CameraConfiguration derived classes in order to access it from their validate() implementation. This must be stored as a std::shared_ptr<> as the CameraConfiguration instances belong to applications. In order to make this possible, make the Camera class inherit from std::shared_from_this<>. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-05-23libcamera: pipeline: Move camera data classes to the top level scopeLaurent Pinchart
Move the pipeline handler camera data classes, defined in the scope of the respective pipeline handler class, to the top level of the libcamera namespace. This prepares for the introduction of other classes that will make use of them in the IPU3 and RkISP1 pipeline handlers. The UVC and VIMC pipeline handlers are updated as well for consistency. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-05-23libcamera: camera: Return a pointer from generateConfiguration()Laurent Pinchart
To prepare for specialising the CameraConfiguration class in pipeline handlers, return a pointer to a camera configuration instead of a reference from Camera::generateConfiguration(). The camera configuration always needs to be allocated from the pipeline handler, and its ownership is passed to the application. For symmetry, change Camera::configure() to take a CameraConfiguration pointer instead of a reference. This aligns with our coding practice of passing parameters that are modified by the callee by pointer. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-05-23libcamera: Refactor the camera configuration storage and APILaurent Pinchart
Refactor the CameraConfiguration structure to not rely on Stream instances. This is a step towards making the camera configuration object more powerful with configuration validation using "try" semantics. The CameraConfiguration now exposes a simple vector-like API to access the contained stream configurations. Both operator[]() and at() are provided to access elements. The isEmpty() method is renamed to empty() and the methods reordered to match the std::vector class. As applications need access to the Stream instances associated with the configuration entries in order to associate buffers with streams when creating requests, expose the stream selected by the pipeline handler through a new StreamConfiguration::stream(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-05-23libcamera: Use stream roles directly instead of StreamUsageLaurent Pinchart
In order to prepare for an API overhall of the camera configuration generation, remove the StreamUsage class and replace its uses by stream roles. The size hints can't be specified anymore, and will be replaced with an API on the StreamConfiguration to negotiate configuration parameters with cameras. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-05-23libcamera: camera: Rename configureStreams() and streamConfiguration()Laurent Pinchart
Rename the configureStreams() and streamConfiguration() methods to configure() and generateConfiguration() respectively in order to clarify the API. Both methods deal with CameraConfiguration objects, and are thus not limited to streams, even if a CameraConfiguration currently contains streams only. While at it, remove the qcam MainWindow::configureStreams() method that is declared but never defined or used. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-05-18libcamera: pipeline: rkisp1: Fix usage of uninitialised variableLaurent Pinchart
Commit 1a813a5c3ab7 introduced usage of an uninitialised variable. Fix it. Fixes: 1a813a5c3ab7 ("libcamera: media_device: Handle media device fd in acquire() and release()") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-05-17libcamera: pipeline_handler: Keep track of MediaDeviceNiklas Söderlund
Instead of requiring each pipeline handle implementation to keep track of calling release() on its media devices upon deletion, keep track of them in the base class. Add a helper that pipeline handlers shall use to acquire a media device instead of directly interacting with the DeviceEnumerator. This also means that pipeline handler implementations do no need to keep a shared_ptr<> reference to the media devices they store locally as the PipelineHandler base class will keep a shared_ptr<> reference to all media devices consumed for the entire lifetime of the pipeline handler implementation. Centrally keeping track of media devices will also be beneficial to implement exclusive access to pipelines across processes. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-05-17libcamera: media_device: Handle media device fd in acquire() and release()Niklas Söderlund
To gain better control of when a file descriptor is open to the media device and reduce the work needed in pipeline handler implementations, handle the file descriptor in acquire() and release(). This changes the current behavior where a file descriptor is only open when requested by the pipeline handler to that one is always open as long a media device is acquired. This new behavior is desired to allow implementing exclusive access to a pipeline handler between processes. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>