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Add a setLensControls() function to the IPA/pipeline handler interface. This
will be used in a future commit to control the lens actuator position from an
autofocus algorithm.
Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Pass the available lens controls to the IPA through the configure() function.
Validate that the V4L2_CID_FOCUS_ABSOLUTE does exist. If it doesn't, log a
warning message, and do not advertise focus related controls from the IPA.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Replace the legacy entityControls map passed into ipa::configure() with explicit
fields for sensor and ISP controls. This removes any ambiguity over which set of
controls corresponds with specific integer keys.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Remove the streamConfig parameter from the ipa::configure() call, it is never
used.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Check if a lens actuator is available by the presense of the lens driver entity
in the pipeline handler. Pass this result to the IPA on init.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Previously the x,y offsets in the min/max ScalerCrop control values
were zero. Here we make them the same as the sensor's analogue crop
offset which is I think less misleading.
With this change, it also seems reasonable to advertise the default
scaler crop value to be the true default that you will get. This makes
it possible for applications to see what that value will be without
having to start the camera and wait for frames.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add support for Transform to the RkISP1 pipeline handler.
The pipeline rotates using the sensor's V/H flips, hence use the
CameraSensor helpers to handle transformation requests from
applications.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Augment the CameraSensor::setFormat() function to configure horizontal
and vertical flips before applying the image format on the sensor.
Applying flips before format is crucial as they might change the Bayer
pattern ordering.
To allow users of the CameraSensor class to specify a Transform,
add to the V4L2SubdeviceFormat class a 'transform' member, by
default initialized to Transform::Identity.
Moving the handling of H/V flips to the CameraSensor class allows to
remove quite some boilerplate code from the IPU3 and RaspberryPi
pipeline handlers.
No functional changes intended.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
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The two pipeline handlers that currently support Transform (IPU3 and
RaspberryPi) implement it by operating H/V flips on the image sensor.
Centralize the code that validates a Transform request against the
sensor rotation capabilities in the CameraSensor class.
The implementation in the IPU3 pipeline handler was copied from the
RaspberryPi implementation, and is now centralized in CameraSensor to
make it easier for other platforms.
The CameraSensor::validateTransform() implementation comes directly from
the RaspberryPi pipeline handler, no functional changes intended.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
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Comply with a checkstyle suggestion and separate inclusion directives.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Fix various typos in the code base.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Move the simple converter implementation to a generic V4L2 M2M class
derived from the converter interface. This latter could be used by
other pipeline implementations and as base class for customized V4L2 M2M
converters.
Signed-off-by: Xavier Roumegue <xavier.roumegue@oss.nxp.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Pass an IPA cookie from the pipeline handler to the IPA and eventually back to
the pipeline handler through the setDelayedControls signal. This cookie is used
to index the RPiController::Metadata object to be used for the frame.
The IPA cookie is then returned from DelayedControls when the frame with the
applied controls has been returned from the sensor, and eventually passed back
to the IPA from the signalIspPrepare signal.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Allow the caller to provide a cookie value to DelayedControls::reset and
DelayedControls::push. This cookie value is returned from DelayedControls::get
for the frame that has the control values applied to it.
The cookie value is useful in tracking when a set of controls has been applied
to a frame. In a subsequent commit, it will be used by the Raspberry Pi IPA to
track the IPA context used when setting the control values.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Convert ControlRingBuffer to a templated class to allow arbitrary ring buffer
array types to be defined. Rename ControlRingBuffer to RingBuffer to indicate
this.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Switch the Raspberry Pi pipeline handler to use the DelayedControls
implementation in the RPi:: namespace. This will allow us to use Raspberry Pi
specific API changes in future commits.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Fork the libcamera::DelayedControls implementation in the RPi:: namespace, with
the intention of updating the API for Raspberry Pi specific features.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Implement support for raw Bayer capture during configuration generation,
validation and camera configuration.
While at it, fix a typo in a comment.
Signed-off-by: Florian Sylvestre <fsylvestre@baylibre.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Implement support for raw Bayer capture at runtime, from start() to
stop(). Support of raw formats in the camera configuration is split to a
subsequent change to ease review.
In raw mode, the ISP is bypassed. There is no need to provide parameter
buffers, and the ISP will not generate statistics. This requires
multiple changes in the buffer handling:
- The params and stats buffers don't need to be allocated, and the
corresponding video nodes don't need to be started or stopped.
- The IPA module fillParamsBuffer() operation must not be called in
queueRequestDevice(). As a result, the IPA module thus doesn't emit
the paramsBufferReady signal. The main and self path video buffers
must thus be queued directly in queueRequestDevice().
- The tryCompleteRequest() function must not to wait until the params
buffer has been dequeued.
- When the frame buffer has been captured, the IPA module
processStatsBuffer() operation must be called directly to fill request
metadata.
Signed-off-by: Florian Sylvestre <fsylvestre@baylibre.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Unlike RkISP1Path::generateConfiguration(), the validate() function
doesn't take the camera sensor resolution into account but only
considers the absolute minimum and maximum sizes supported by the ISP to
validate the stream size. Fix it by using the same logic as when
generating the configuration.
Instead of passing the sensor resolution to the validate() function,
pass the CameraSensor pointer to prepare for subsequent changes that
will require access to more camera sensor data. While at it, update the
generateConfiguration() function similarly for the same reason.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Query the driver for the output formats and sizes that it supports,
instead of hardcoding them. This allows future-proofing for formats that
are supported by some but not all versions of the driver.
As the rkisp1 driver currently does not support VIDIOC_ENUM_FRAMESIZES,
fallback to the hardcoded list of supported formats and framesizes. This
feature will be added to the driver in parallel, though we cannot
guarantee that users will have a new enough kernel for it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The StreamRole enum has enumerators such as 'Raw' that are too generic
to be in the global libcamera namespace. Turn it into a scoped enum to
avoid namespace clashes, and update users accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Currently, the Android HAL does not work on rkisp1-based devices because
required FrameDurationLimits metadata is missing from the IPA
implementation.
This change sets FrameDurationLimits for rkisp1 based on the existing
ipu3 implementation, using the sensor's reported range of vertical
blanking intervals with the minimum reported horizontal blanking
interval.
Signed-off-by: Nicholas Roth <nicholas@rothemail.net>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The RkISP1 pipeline and IPA module allows for the CameraSensorInfo to be
empty, probably to accommodate some sensor used in a test platform that
does not provide the mandatory libcamera requirements.
As the \todo item in the IPA reports, there is a possibility that the
received CameraSensorInfo is empty and it should be checked before
accessing it, but currently such requirement is not enforced in the
code.
This allows to assume all the test platforms in use have now
successfully moved their sensor driver to comply with the minimum
requirements and provide a populated CameraSensorInfo to the IPA.
As the safety check is not enforced, and as we don't want to allow
faulty sensors to send empty CameraSensorInfo to the IPA, remove the
\todo item in the IPA and fail hard in the pipeline handler if the
sensor does not comply with libcamera requirements.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The RkISP1 implementation of IPA::configure() still uses the legacy
interface where sensor controls (and eventually lens controls) are
passed from the pipeline handler to the IPA in a map.
Since the introduction of mojom-based IPA interface definition, it is
possible to define custom data types and use them in the interface
definition between the pipeline handler and the IPA.
Align the RkISP1 IPA::configure() implementation with the one in the
IPU3 IPA module by using a custom data type instead of relying on a map
to pass controls to the IPA.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The BufferMask enum provides a way of identifying which stream a frame buffer
belongs to. This enum is defined in the raspberrypi.mojom interface file.
However, the IPA does not need these enum definitions to mmap buffers that it
uses.
Move this enum out of the raspberrypi.mojom interface file and put it into
the RPi namespace visible only to the pipeline handler. This removes the
need to include the auto-generated IPA interface header in the RPi::Stream
definition.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Report the sensor timestamp in metadata. Use the timestamp from the
first buffer. Accuracy could be improved by using the frame start event
from the CSI-2 receiver, but the kernel driver doesn't support it yet.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Add to the formats map all the supported ISI video capture
stream formats.
This allows to populate the list of stream formats for all the non-RAW
use cases, as the ISI can perform colorspace conversion between YUV and
RGB.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a pipeline handler for the ISI capture interface found on
several versions of the i.MX8 SoC generation.
The pipeline handler supports capturing multiple streams from the same
camera in YUV, RGB or RAW formats. The number of streams is limited by
the number of ISI pipelines, and is currently hardcoded to 2 as the code
has been tested on the i.MX8MP only. Further development will make this
dynamic to support other SoCs.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Implement the PipelineHandlerRPi::releaseDevice method which allows
us to free any allocated buffers when a camera is released.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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This reverts commit 30d704732badc675f72fe73d14749669cb645c23.
It turns out that this commit causes some regressions and is in fact
unnecessary because the related commit "libcamera: v4l2_videodevice:
Guard against releasing unallocated buffers"
(a2bdff6d0b67475492ac7cf9318866b6d89a28fd) fixes the problem
completely (if the buffers were never allocated, the video device
avoids trying to free them even if the pipeline handler asks).
The reason for the regressions is that in this new (broken) scheme we
would never call clearBuffers() on all the streams if the internal
buffers were never allocated (i.e. buffersAllocated_ is never
set). This causes the stream's bufferMap_ list to get longer and
longer if there are multiple back-to-back calls to configure, and
dev_->importBuffers() will ultimately to fail.
So either we need to think more carefully about how to stop the
pipeline handler from freeing buffers that it doesn't own, or we just
leave it as the other commit resolves the problem on its own. In the
interim, simply reverting this commit certainly seems like the best
solution.
Fixes: 30d704732bad ("pipeline: raspberrypi: Do not unconditionally free buffers on close")
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The tryCompleteRequest() function looks up the RkISP1FrameInfo that all
but one of its callers already look up. Remove the double look up by
passing the info pointer to tryCompleteRequest().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The PipelineHandler::generateConfiguration() function allocates a
CameraConfiguration instance and returns it. The ownership of the
instance is transferred to the caller. This is a perfect match for a
std::unique_ptr<>, which the Camera::generateConfiguration() function
already returns. Update PipelineHandler::generateConfiguration() to
match it. This fixes a memory leak in one of the error return paths in
the IPU3 pipeline handler.
While at it, update the Camera::generateConfiguration() function
documentation to drop the sentence that describes the ownership
transfer, as that is implied by usage of std::unique_ptr<>.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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When a camera is terminated, do not unconditionally free buffers in the
RPiCameraData destructor. Otherwise, this causes harmless error log messages
to be displayed if no buffer have previously been allocated.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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For the purpose of testing serializing/deserializing Flags in function
parameters, add an enum class TestFlags and Flags<TestFlags> to some
function parameters, both for input and output and Signals.
While at it, update the ipa_interface_test.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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For the purpose of testing serializing/deserializing enums in function
parameters, add IPAOperationCode to the parameter list of init().
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Update CamHelper::getDelays() to return the sensor HBLANK delay. The
HBLANK delay is set to the same value as VBLANK delay for all sensors in
the Raspberry Pi IPA.
Return the HBLANK gain delay from the IPA to the pipeline handler, and
initialise DelayedControls to handle V4L2_CID_HBLANK with this delay
value.
As a drive-by, check that the V4L2_CID_HBLANK control is available when
calling IPARPi::configure().
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The bytesused value for the parameters buffer is initialized to 0 and
never set. The V4L2 API specification indicates that, for an output
video device, the driver will set the bytesused value to the size of the
plane in that case. The videobuf2 framework does so, but considers this
as deprecated and prints a warning:
[ 54.375534] use of bytesused == 0 is deprecated and will be removed in the future,
[ 54.388026] use the actual size instead.
Fix it by setting bytesused to the correct value before queuing the
parameters buffer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
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The bytesused value for the parameters buffer is initialized to 0 and
never set. The V4L2 API specification indicates that, for an output
video device, the driver will set the bytesused value to the size of the
plane in that case. The videobuf2 framework does so, but considers this
as deprecated and prints a warning:
[ 54.375534] use of bytesused == 0 is deprecated and will be removed in the future,
[ 54.388026] use the actual size instead.
Fix it by setting bytesused to the correct value before queuing the
parameters buffer.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
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Append "_mono" to the sensor name when generating the tuning filename for
monochrome sensor variants. So the new naming convention is as follows:
<sensor_name>.json - Standard colour sensor variant
<sensor_name>_mono.json - Monochrome sensor variant
Rename the existing imx296.json file to imx296_mono.json as this tuning file
is based on the monochrome variant of the IMX296.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The "R" pixel formats (R8, R10, R10_CSI2P etc.) record the associated
colour space as being YUV rather than RAW, meaning that the code was
not detecting them as being raw formats.
In the case of Raspberry Pi, we deal only with raw formats, so the
revised test must work correctly for both these and the standard Bayer
formats.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-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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Currently, if a Unicam timeout is signalled, the pipeline handler only raises
an error message. Update the error handling to put the pipeline handler in an
internal error state, disable all device streams, and return all outstanding
requests as cancelled. Any subsequent requests that come into the pipeline
handler will also be returned as cancelled.
Any further error handling (e.g. a reset with camera stop()/start()) is up to
the application to perform as it requires.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add an error state used internally in the Raspberry Pi pipeline handler.
Currently this state is never set, but will be in a subsequent commit when a
device timeout has been signalled.
Add a isRunning() helper to identify if the state machine is in a stopped/error
state.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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A UVC device could expose only formats that are not supported by
libcamera. The pipeline handler doesn't currently consider this as an
error, and happily creates a camera. The camera won't be usable, and
worse, generateConfiguration() and validate() will crash as those
functions assume that at least one format is supported.
Fix this by failing match() if none of the formats exposed by the camera
are supported. Log an error message in that case to notify the user.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=145
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Christian Rauch <Rauch.Christian@gmx.de>
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Populate and cache the list of supported formats in
UVCCameraData::init(), to avoid repeating the operation every time
generateConfiguration() is called. Combine this with the search for
the largest size advertised by the camera to avoid iterating over the
formats twice in init().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Christian Rauch <Rauch.Christian@gmx.de>
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Move the camera ID generation to UVCCameraData, and cache the ID in that
class. This will be useful to access the ID in multiple locations, such
as when printing error messages.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Christian Rauch <Rauch.Christian@gmx.de>
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Add support for color space to the uvcvideo pipeline handler. UVC
devices have a fixed color space per format, so only the validate()
function needs to be extended to retrieve the color space from the
kernel. There is no need to pass the value back to the driver in
configure().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Implement color space support in the rkisp1 pipeline handler, in the
configuration generation, configuration validation and camera
configuration. As all the processing related to the color space is
performed in the part of the pipeline shared by all streams, a single
color space must cover all stream configurations. This is enforced
manually when generating the configuration, and with the
validateColorSpaces() helper when validating it.
Only the Y'CbCr encoding and quantization range are currently taken into
account, and they are programmed through the V4L2 color space API. The
primary colors chromaticities and the transfer function need to be
configured in the ISP parameters buffer, and thus conveyed to the IPA,
but the rkisp1 driver does not currently support tone mapping, so this
will be done later.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Florian Sylvestre <fsylvestre@baylibre.com>
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The JPEG color space is badly name, as the JPEG specification (ITU-T
T.81) doesn't define any particular color space:
The interchange format does not specify a complete coded image
representation. Application-dependent information, e.g. colour
space, is outside the scope of this Specification.
The JFIF specification (ITU-T T.871) is clearer as it requires ITU-R
BT.601 YCbCr encoding and a full quantization range:
The interpretations of Y, CB, and CR are derived from the E'Y, E'Cb,
and E'Cr signals defined in the 625-line specification of Rec. ITU-R
BT.601, but these signals are normalized so as to permit the usage of
the full range of 256 levels of the 8-bit binary encoding of the Y
component.
It however doesn't specify color primaries or a transfer function
explicitly. It only mentions the latter when describing the conversion
from YCbCr to RGB:
The inverse relationship for computing full scale 8-bit per colour
channel gamma pre-corrected RGB values (following Rec. ITU-R BT.601
gamma pre-correction and colour primary specifications) from YCbCr
colours (with 256 levels per component) can be computed as follows:
[...]
Given that ITU-R BT.601-5 (1995) didn't specify color primaries or a
transfer function, and that the later ITU-R BT.601-7 (2011) version
specifies color primaries for the 625-line variant that do not match
sRGB, the JPEG color space in libcamera is badly named. This is
confirmed by ITU-T T.871:
As this Recommendation | International Standard is based on the prior
informally-circulated JFIF version 1.02 specification that was
produced in 1992, which referenced Rec. ITU-R BT.601 (formerly CCIR
601), it references that specification for definition of the E'Y,
E'Cb, and E'Cr signals that correspond to the YCBCR values specified
herein. However, since the development of the prior JFIF version 1.02
specification, additional industry specifications have been developed,
Rec. ITU-R BT.601 has been updated, and common industry practice has
emerged which often follows the sYCC specification in IEC
61966-2-1/Amd.1. The difference between the use of the colour
interpretation specification in this Recommendation | International
Standard and that of the sYCC specification may be considered
negligible in practice.
Rename the color space to sYCC, as its definition matches the sYCC
standard, and indicate that it is typically used to encode JPEG images.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Using Size::expandTo() to find the max resolution might generate a non-existent
resolution. For example, when application request streams for 1920x1080 and
1600x1200, the max resolution will be wrongly 1920x1200 and fails the
configuration.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=139
Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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