Pipeline handlers might need to perform allocation of internal buffers,
setup operations, or simple sanity check before going into the
per-stream buffer allocation.
As of now, PipelineHandler::allocateBuffers() is called once for each
active stream, leaving no space for stream-independent configuration.
Change this by providing to the pipeline handlers the full set of active
streams, and ask them to loop over them to perform per-streams
memory allocations and freeing.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
When switching to stream usages in the PipelineHandler StreamUsage was
was not forward declared as it should and was hid by other include
files, fix this.
Fixes: 20a6455e0b ("libcamera: camera: Add support for stream usages")
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
The libcamera API and the cam tool are now ready to make use of cameras
with more than one stream. Remove the limitation in the tool which
disallows cameras that provide more than one stream.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The completion handler needs to handle all buffers in the request. Solve
this by iterating over all buffers in the completed request. The streams
are named automatically streamX, where X is the order in which the
stream was passed to configureStream().
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Extend the cam tool to allow configuring more than one stream. Add an
optional parameter to the --stream option to specify a usage role for
the stream. The stream role is passed to libcamera to give it control
over which streams to use.
To support multiple streams, creation of requests needs to be reworked
to limit the number of requests to match the stream with the least
number of buffers. This should be improved in the future as the tool and
the library evolve.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To be able to write multiple buffers captured in the same request (and
hence having the same sequence number) the buffer writer needs to name
each file uniquely. Add a stream name to the writer function which the
buffer writer can add to the part of the pattern it already expands to
the sequence number. As cam only supports one stream, hard code the name
to stream0.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
More than format information needs to be supplied for each stream to
allow multiple streams to be configured. Rename the option and adapt all
usages of it. There is no functional change except the rename.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Implement the camera configuration thru out the library, tests, cam and
qcam tools.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To properly support both multiple streams and stream usages the library
must provide a method to map the stream usages to the returned streams
configurations. Add a camera configuration object to handle this
mapping.
Applications can iterate over the returned camera configuration to
retrieve the streams selected by the library in the same order as the
usages it provided to the library.
Applications can use the operator[] to retrieve the stream pointer and
the stream configuration. Using a numerical index retrieves the stream
pointer, the numerical indexes corresponds to the insertion order of
usages in the CameraConfiguration, using the stream pointer retrieves
the stream's configuration.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Instead of requesting the default configuration for a set of streams
where the application has to figure out which streams provided by the
camera is best suited for its intended usage, have the library figure
this out by using stream usages.
The application asks the library for a list of streams and a suggested
default configuration for them by supplying a list of stream usages.
Once the list is retrieved the application can fine-tune the returned
configuration and then try to apply it to the camera.
Currently no pipeline handler is prepared to handle stream usages but
nor did it make use of the list of Stream IDs which was the previous
interface. The main reason for this is that all cameras currently only
provide one stream each. This will still be the case but the API will be
prepared to expand both pipeline handlers and applications to support
streams usages.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
In preparation of reworking how a default configuration is retrieved
from a camera add stream usages. The usages will be used by applications
to describe how they intend to use a camera and replace the Stream IDs
when retrieving default configuration from the camera using
streamConfiguration().
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Make the geometry header public so it can be used by the API facing
applications.
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>
In preparation of reworking how a default configuration is retrieved
from a camera separate preparation of stream configuration and
application into two different functions. Reason for this is that
preparation of camera configuration will become more complex.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Meson searches for qmake to determine if QT5 is available to support the
optional qcam component.
When cross compiling, meson can incorrectly identify the host qmake
which will cause incorrect linkage and usage of system headers.
Set the dependency method to specify pkg-config which resolves the
issue.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Ensure that any error from the disableLinks() call during match() is
propogated to the caller.
Fixes: d698ed2749 ("libcamera: ipu3: Create ImgUDevice class")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
As the lengthy comment reports, link enable/disable is not trivial, as
links in one ImgU instance interfere with capture operations in the
other one. As it is not yet clear if this behaviour is intended, as of
now reset the media graph during pipeline's match() and enable the
required links at streamConfiguration time.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
As the procedure to configure the intermediate sizes and the alignement
requirements of the ImgU device have not been clarified yet, return as
default configuration the (2560x1920) resolution that has been validated
for both cameras.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Use the cached sensor maximum resolution and the pixel format
generated by the ImgU output devices as default stream configuration.
While at it, replace the hardcoded numerical value for the number of
buffers with a named constexpr.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Connect the CIO2 output bufferRead signal to a slot that simply
queue the received buffer to ImgU for processing, and connect the ImgU
main output bufferReady signal to the cameraData slot that notifies
to applications that a new image buffer is available.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Implement queueRequest for the IPU3 pipeline manager. When a request is
queued, a new buffer is queued to the ImgU output for capture.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Start and stop video devices in the pipeline.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Implement buffer allocation and release in IPU3 pipeline handlers.
As the pipeline handler currently supports a single stream, provide two
internal buffer pools for 'viewfinder' and 'stat' video devices, and
export the 'output' video device buffers to the stream's pool. This
works around the fact that the ImgU requires buffers to be queued on all
its outputs, even when they are not in use.
Share buffers between the CIO2 output and the ImgU input video devices,
as the output of the former should immediately be provided to the
latter for further processing.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Apply the requested stream configuration to the CIO2 device, and
propagate formats through the the ImgU subdevice and its input and
output video devices.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Group ImgU components in a class associated with a camera at camera
registration time and provide an intialization method to create and open
all video devices and subdevices of the ImgU.
Statically assign imgu0 to the first camera and imgu1 to the second one
and limit support to two cameras. This will have to be revised in the
future.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Cache the sensor maximum size and the media bus code used to produce
it.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Group CIO2 components (cio2, csi2 and image sensor) in a class
associated with the CameraData, to ease management and initialization of
CIO2 unit at camera registration time. A CIO2 unit will always be
associated with a single Camera only.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Add constructor to SizeRange which initialize all the size range fields
to 0.
While at there make the in-line constructor declarations respect the
coding style by moving braces to a new line.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
The secure_getenv() call is not provided by all C libraries. Support
this feature by implementing our own version.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Differing implementations of basename() exist, some of which may modify
the content of the string passed as an argument.
The implementation of basename() is trivial, thus to support different
C librariese, provide our own version which accepts and returns a const
char *.
Update the call sites to use the new implementation.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
When the camera provides MJPEG, use the QImage JPEG decompression code
to convert that to RGB.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Add a static method to V4L2Subdevice class to create a V4L2Subdevice
instance from a media entity name.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Add a static method to V4L2Device class to create a V4L2Device instance
from a media entity name.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Rename the 'deviceName()' method to 'entityName()' as it actually
returns the name of the entity backing the v4l2 subdevice.
While at it, make the names getter methods return a const reference
instead of returning by copy.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Add toString() helpers to pretty print out the sizes of a Rectangle.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Add an internal format.h and format.cpp files to collect libcamera image
format related types, helpers and structures. Define and document the
FormatEnum type, used to enumerate pixel image formats and associated
image resolutions.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
qcam is a sample camera GUI application based on Qt. It demonstrates
integration of the Qt event loop with libcamera.
The application lets the user select a camera through the GUI, and then
captures a single stream from the camera and displays it in a window.
Only streams in YUYV formats are supported for now.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
An empty option list is not necessarily an error. Add a new empty()
function to test the option list for emptiness, and modify the valid()
function to only notify parsing errors. As a side effect this allows
accessing partially parsed options, which may be useful in the future.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Add a flag to indicate if an option can be repeatable. If an option is
repeatable it must be accessed thru the array interface, even if it's
only specified once by the user.
Also update the usage generator to indicate which options are
repeatable.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To allow specifying the same argument option multiple times a new type
of OptionValue is needed. As parsing of options is an iterative process
there is a need to append options as they are parsed so instead of
setting values using the constructor a new addValue() method is used.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
In preparation for support of multiple instances of the same option,
create a separate enum for the OptionValue types as it will diverge from
enum OptionType.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The local variable ifaceId generates a compiler warning that it is used
without initialisation.
The loop, and check against the loop iterator, and the
topology.num_interfaces actually ensures that this isn't the case, and
that ifaceId can only be used when set to a valid ID.
The media_v2_interface.id field documents the ID as simply "Unique ID
for the interface" but does not specify if zero is a valid ID or not. As
such we don't further check the pre-initialised ID for validity and keep
the existing check on the iterator count to determine if the ID had been
discovered successfully.
Fixes: d4af90d729 ("libcamera: media_device: Create entities with
major and minor numbers")
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
It is not permitted to configure streams before a camera is acquired.
Fixes: 77100a7578 ("libcamera: camera: add state machine to control access from applications")
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Before calling into the pipeline handler make sure the streams provided
by the application actually belongs to the camera.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Buffers must have all mappings destroyed before buffers can be freed by the
V4L2 device that has allocated them.
Swap the ordering of freeBuffers() and destroyBuffers() to correct this.
Fixes: bd38112b77 ("libcamera: camera: Extend the interface to support capture")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
When constructing a Plane, the exported buffer provides a dmabuf handle which
is set to the Plane object.
This action duplicates the handle for internal storage, and the original fd is
not used and needs to be closed.
Close the handle, ensuring that the resources can be correctly managed.
Fixes: 771befc6dc ("libcamera: v4l2_device: Request buffers from the device")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Cosmetic update of V4L2Device class: remove the return type from Doxygen
documentation of inline functions.
Cosmetic update, no functional changes intended.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
