Age | Commit message (Collapse) | Author |
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Rename RPi::RPiStream -> RPi::Stream and RPi::RPiDevice -> RPi::Device.
There are no functional changes in this commit.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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This commit plumbs the user transform from the Raspberry Pi pipeline
handler through to the IPA. Note that the transform is actually
handled in the sensor (by setting the h/v flip bits), so the IPAs need
to understand the orientation of the image they receive.
Once in the IPA we add it to the CameraMode description, so that it
becomes automatically available to all the individual control
algorithms.
The IPA configure method has to be reordered just a little so as to
fill in the transform in the camera mode before calling SwitchMode.
Signed-off-by: David Plowman <david.plowman@raspberrypi.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>
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The Raspberry Pi pipeline handler allows all transforms except those
involving a transpose. The user transform is combined with any
inherent rotation of the camera, and the camera's H and V flip bits
are set accordingly.
Note that the validate() method has to work out what the final Bayer
order of any raw streams will be, before configure() actually applies
the transform to the sensor. We make a note of the "native"
(untransformed) Bayer order when the system starts, so that we can
deduce transformed Bayer orders more easily.
Signed-off-by: David Plowman <david.plowman@raspberrypi.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>
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Add a field to the CameraConfiguration (including the necessary
documentation) to represent a 2D transform requested by the
application. All pipeline handlers are amended to coerce this to the
Identity, marking the configuration as "adjusted" if something
different had been requested.
Pipeline handlers that support Transforms can be amended subsequently.
Signed-off-by: David Plowman <david.plowman@raspberrypi.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>
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before configure()"
This reverts commit 1e8c91b65695449c5246d17ba7dc439c8058b781.
Now that we shall be implementing application-defined 2D transforms
it's no longer possible to set the sensor orientation so early on. We
have to wait until we have the CameraConfiguration object as that's
where the application puts its choice of transform.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Handle the case where a FrameBuffer that has been externally allocated
(i.e. not through the v4l2 video device) is passed into a Request.
We must store the buffer pointer in the stream internal buffer list to
identify when used.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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By using a set container, we can easily insert/remove buffer ids that have
been mmaped by the IPA. This will be required to track buffers allocated
externally and passed to the pipeline handler through a Request.
Move the IPA buffer mapping code into a function to remove duplicated
code.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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By using a map container, we can easily insert/remove buffers from the
buffer list. This will be required to track buffers allocated externally
and passed to the pipeline handler through a Request.
Replace the buffer index tracking with an id generated internally by the
stream object.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The FrameBuffer cookie may be set by the application, so this cannot
be set by the pipeline handler as well. Revert to using a simple index
into the buffer list to identify buffers passing to and from the IPA.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add further queueing into the RPiStream object to ensure that we always
follow the buffer ordering (be it internal or external) given by
incoming Requests.
This is essential, otherwise we risk dropping frames that are meant to
be part of a Request, and can cause the pipeline to stall indefinitely.
This also prevents any possibility of mismatched frame buffers going
through the pipeline and out to the application.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The counter was not incremented, so multiple streams would only pass the
last stream config to the IPA.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Stop using v4l2_videodevice::allocateBuffer() for internal buffers and
instead export/import all buffers. This allows the pipeline to return
any stream buffer requested by the application as zero-copy.
Advertise the Unicam Image stream as the RAW capture stream now.
The RPiStream object now maintains a new list of buffers that are
available to queue into a device. This is needed to distinguish between
FrameBuffers allocated for internal use vs externally provided buffers.
When a Request comes in, if a buffer is not provided for an exported
stream, we re-use a buffer from this list.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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For the zero-copy RAW capture feature, the RPiStream will have to be
modified. Remove the const qualifier in anticipation of the future
commits for this feature.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Increase the number of expected RAW buffers in the stream configuration
to 2. This will avoid dropping Unicam frames when exporting RAW streams.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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No functional changes, only added some more trace points.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The IPA now signals up front how many frames it wants the pipeline
handler to drop. This makes it easier to handle up-coming changes to the
buffer handling for import/export buffers.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Put RPiStream into the RPi namespace and add a new log category (RPISTREAM).
Reorder methods into logical groups for readability.
There are no functional changes in this commit.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Check if the dmaHeap_ allocator is valid at match() time to fail
earlier if its construction failed.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Add isValid() method to verify the allocator device has been open
correctly.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Improve the device opening at class construction time by testing all
the available device paths and printout the appropriate error message.
While at it, initialize dmaHeapHandle_ to -1 and check for its value
at destruction time.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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The default sensor orientation must be set early on in match() to ensure
generateConfiguration() and configure() return out the correct Bayer
ordering to the application. This is particularly important for RAW
capture streams.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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We build libcamera with -Wno-unused-parameter and this doesn't cause
much issue internally. However, it prevents catching unused parameters
in inline functions defined in public headers. This can lead to
compilation warnings for applications compiled without
-Wno-unused-parameter.
To catch those issues, remove -Wno-unused-parameter and fix all the
related warnings with [[maybe_unused]].
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Now that libcamera is using C++17 and requires gcc 7 or newer, we can
use the implicit std::queue constructor. Simplify the code accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Rename Camera::name() to camera::id() to better describe what it
represents, a unique and stable ID for the camera. While at it improve
the documentation for the camera ID to describe it needs to be stable
for a camera between resets of the system.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Use the CameraSensor ID as the camera name in pipelines that uses a
CameraSensors, this is done in preparation of turning the camera name
into an ID. The CameraSensor ID meets the requirements that will be put
on camera ID.
Before this change example of camera names:
* OF based systems
ov5695 7-0036
ov2685 7-003c
* ACPI based systems
ov13858 8-0010
ov5670 10-0036
* VIMC
VIMC Sensor B
After this change the same cameras are:
* OF based systems
/base/i2c@ff160000/camera@36
/base/i2c@ff160000/camera@36
* ACPI based systems
\_SB_.PCI0.I2C2.CAM0
\_SB_.PCI0.I2C4.CAM1
* VIMC
platform/vimc.0 Sensor B
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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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Add two new parameters, ipaConfig and result, to the
IPAInterface::configure() function to allow pipeline handlers to pass
custom data to their IPA, and receive data back. Wire this through the
code base. The C API interface will be addressed separately, likely
through automation of the C <-> C++ translation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Rectangle, unlike Size, has no constructor, requiring the users to
explicitly initialize the instances. This is error-prone, add
constructors.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Size has a default constructor, there's no need to default-initialize
instances explicitly. Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Use std::numerical_limits to initialise the best score instead of an
arbitrary value. This fixes a failure in v4l2-conformance when using
the Raspberry Pi pipeline handler and v4l2-compatibility libcamera
layer.
Reported-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
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Fill the stride and frameSize fields of the StreamConfiguration at
configuration validation time instead of at camera configuration time.
This allows applications to get the stride when trying a configuration
without modifying the active configuration of the camera.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Unsupported formats should not be added to the configuration when
generating the configuration. Filter them out.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Media devices should be acquired by pipeline handlers via
PipelineHandler::acquireMediaDevice so that the media devices can be
registered in the pipeline handler so that they can be automatically
added to the devnum map for the v4l2 compatibility layer to use. Make
the raspberrypi pipeline handler do this.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Simplify code for looking up PixelFormatInfo using a V4L2 format by
using the new PixelFormatInfo lookup function based on V4L2 format.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Sharing a pointer with the IPA is fragile as it will not work with all
IPC mechanisms. Document that it's a temporary workaround that should be
reworked.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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When an unsupported stream roles is requested to
generateConfiguration(), the function shall fail instead of simply
ignoring the request.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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The generateConfiguration() implementation does not check if the
requested list of roles can actually be satisfied. The camera API
documentation prescribes the function shall fail in that case, instead
of silently adjust the returned configuration.
Fix this by implementing the same logic as the validate() function
implements, as the pipeline handler supports one raw stream and up to
two output streams.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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In generateConfiguration(), add the device node specific formats to the
StreamConfiguration for each StreamRole requested.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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>
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Use the new pixel format constants to replace usage of macros from
drm_fourcc.h.
The IPU3 pipeline handler still uses DRM FourCCs for IPU3-specific
formats that are not defined in the libcamera public API.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Swap the pipeline handler to use "LGPL-2.1-or-later" license. This is
to unify with the libcamera core source code license.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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As the only usage of IPAManager::instance() is by the pipeline handlers
to call IPAManager::createIPA(), remove the former and make the latter
static. Update the pipeline handlers and tests accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The preprocessor directive '#pragma once' is non-standard, replace it
with the include guard used elsewhere in libcamera.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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