| Age | Commit message (Collapse) | Author |
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Use UniqueFD to automate the eventfd lifetime management.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Wrap the CameraManager with a PyCameraManager class and move the related
code inside the new class.
This helps understanding the life times of the used-to-be global
variables, gets rid of static handleRequestCompleted function, and
allows us to simplify the binding code as the more complex pieces are
inside the class.
There should be no user visible functional changes.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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We define -DLIBCAMERA_BASE_PRIVATE to get access to libcamera private
headers, but the correct way to do this is to have a meson dependency to
libcamera_private.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The comment is no longer valid.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Clean up the py_main.cpp a bit by moving the ControlValue helpers to a
separate file.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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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Add Python logging category, and use it in handleRequestCompleted().
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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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-C flag is supposed to affect only the camera that was previously
defined in the arguments. That's not the case, and, e.g.:
cam.py -c2 -C -c3
causes camera 3 to start capturing, but it stops after the initial
Requests have been completed.
Fix the issue by filtering out camera contexts that do not have -C
defined.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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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The message.h and mutex.h headers are not used in the libcamera public
API. Make them private to avoid there usage in applications, and to
prevent having to maintain them with a stable ABI.
As mutex.h is used by libcamerasrc, the GStreamer element must switch
from the libcamera_public to the libcamera_private dependency.
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>
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Usage of find_library() to find dependencies that libcamera needs to
compile against can lead to the library being found even if the
corresponding headers are not installed. This will then result in a
compilation failure. Switch to dependency() for libdw, libunwind and
lttng-ust to fix this, all three libraries come with a pkgconfig file
that is usually installed by the distribution package that contains the
library headers.
Reported-by: Christian Rauch <Rauch.Christian@gmx.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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libcamera implements a pipeline handler locking mechanism based on
advisory locks on media devices, to prevent concurrent access to cameras
from the same pipeline handler from different processes (this only works
between multiple libcamera instances, as other processes won't use
advisory locks on media devices).
A side effect of the implementation prevents multiple cameras created by
the same pipeline handler from being used concurrently. Fix this by
turning the PipelineHandler lock() and unlock() functions into acquire()
and release(), with a use count to replace the boolean lock flag. The
Camera class is updated accordingly.
As a consequence of this change, the IPU3 pipeline handler will fail to
operate properly when the cameras it exposes are operated concurrently.
The android.hardware.camera2.cts.MultiViewTest#testDualCameraPreview
test fails as a result. This should be fixed in the IPU3 pipeline
handler to implement mutual exclusion between cameras.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
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Commit f25ad4a2b16b ("libcamera: formats: Reimplement V4L2
PixelFormatInfo::info()") changed the PixelFormatInfo::info(const
V4L2PixelFormat &format) function overload to:
return info(format.toPixelFormat());
As part of the series that contains such commit, the PixelFormatInfo for the
pixel format applied to a video device is now retrieved at
V4L2VideoDevice::open() time. Some video devices register formats not
available to applications, for example metadata formats or, in the case
of ISP devices, formats to describe the ISP statistics and parameters.
This causes the
format.toPixelFormat()
call to output a WARN message, which spams the log and unnecessarily alerts
the users.
Augment V4L2PixelFormat::toPixelFormat() with an optional argument to
suppress warnings in the case a V4L2 pixel format is not known, to
restore the behaviour preceding commit f25ad4a2b16b and returns an
invalid PixelFormatInfo without outputting any unnecessary warning
message.
Fixes: f25ad4a2b16b ("libcamera: formats: Reimplement V4L2 PixelFormatInfo::info()")
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Replace the manual instantiation of algorithms with an automatic
mechanism based on a tuning data file, provided by the Module base
class. This brings the IPU3 IPA module in line with the RkISP1 IPA
module.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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To prepare for dynamic instantiation of algorithms from the tuning file,
register the algorithms with the Module class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add a tuning data file for uncalibrated sensors, picked by the pipeline
handler when no sensor-specific tuning file is available. The file lists
the 5 algorithms currently instantiated by the IPA module.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Pass the path name of the YAML IPA tuning file to the IPA module. The
file name is derived from the sensor name ("${sensor_name}.yaml"), with
a fallback to "uncalibrated.yaml".
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The YamlParser::get<>() function returns an std::optional<> to indicate
when YAML parsing failed.
The current implementation returns a default constructed std::optional
in case of errors with
return {};
This has been reported as generating compiler warnings with a gcc 9.3.0
arm64 cross-compiler:
../src/libcamera/yaml_parser.cpp:184:11: error: ‘<anonymous>’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
184 | return {};
| ^
Replace this with an explicit
return std::nullopt;
which fixes the warnings and conveys the purpose more explicitly.
Reported-by: Christian Rauch <Rauch.Christian@gmx.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The libcamera public API uses 'stride' to refer to the line stride.
Rename the SDLTexture::pitch_ member variable for consistency.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Algorithms are now created dynamically basing on tuning file, so there
is no longer dependency on specific algorithms.
Signed-off-by: Daniel Semkowicz <dse@thaumatec.com>
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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Commit b382f67c833d ("libcamera: Make IPA module signing mandatory for
the meantime") made openssl and gnutls dependencies mandatory to work
around the lack of proper IPA module isolation support, which broke
operation without module signatures. This has now been fixed, so IPA
module isolation isn't strictly required anymore.
There are few use cases for disabling module signing completely, given
that the openssl or gnutls dependencies are available on the vast
majority of systems and the overheard introduced by isolating all IPA
modules when signatures are not available is better avoided.
Nonetheless, libcamera should operate properly with forced IPA module
isolation, so we can support those use cases.
Adopt a middle-ground approach to avoid unintentional isolation by
documenting the dependencies as recommended, and warn at meson setup
time if they are not found.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Support verify IPA signatures with openssl as an alternative to gnutls,
to offer more flexibility in the selection of dependencies. Use gnutls
by default, for no specific reason as both are equally well supported.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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If the public key fails to load, PubKey::isValid() function returns
false. The only user of the PubKey class, the IPAManager class, doesn't
check that condition, and still calls the PubKey::verify() function,
which leads to a crash.
Fix this by returning false from PubKey::verify() if the key isn't
valid, and log a warning in the IPAManager constructor to report the
issue.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The gnutls library ships a pkgconfig .pc file. Use the standard
dependency() method to locate it, instead of cc.find_library().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Define Span types explicitly as either variable- or fixed-sized. This
introduces a new convention for defining Span dimensions in the property
and control value definitions and generates Span types as variable-sized
Span<T> or as fixed-sized Span<T,N>.
Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The KMS sink currently displays the frame buffer on the top-left corner
of the screen, resulting in either a black area on the bottom and right
sides (if the frame buffer is smaller than the display resolution) of in
a restricted field of view (if the frame buffer is larger than the
display resolution). Improve this by scaling the frame buffer to full
screen if supported, and aligning the crop rectangle to the frame buffer
center if the field of view needs to be restricted.
The implementation test for possible composition options, from best to
worst. The tests are performed when the camera is started, as testing
atomic commits requires access to frame buffer objects, which are not
available at configure time. Changing this would require either a large
refactoring of the cam application to provide frame buffers earlier, or
extending the KMS API to support testing commits with dummy buffer
objects. Both are candidates for later development.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The drmRequest is KMSSink::processRequest() is created as a naked
pointer, passed to the constructor of the KMSSink::Request object that
stores it in a std::unique_ptr<>, and used later in the function. The
current implementation is safe, but could be prone to both memory leaks
and use-after-free bugs if modified. Improve it by replacing the naked
pointer with a std::unique_ptr<>.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Test-only commits are used to test a commit without applying any
modification to the device. This will be used by the KMS sink to test
feature support.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The SDL_UpdateNVTexture() function, used for NV12 texture support, has
been introduced in SDL2 2.0.16. Compiling against older SDL versions
fails with
../src/cam/sdl_texture_yuv.cpp: In member function ‘virtual void SDLTextureNV12::update(const std::vector<libcamera::Span<const unsigned char> >&)’:
../src/cam/sdl_texture_yuv.cpp:19:2: error: ‘SDL_UpdateNVTexture’ was not declared in this scope; did you mean ‘SDL_UpdateYUVTexture’?
19 | SDL_UpdateNVTexture(ptr_, &rect_, data[0].data(), pitch_,
| ^~~~~~~~~~~~~~~~~~~
| SDL_UpdateYUVTexture
Fix it with conditional compilation based on the SDL version.
Fixes: 7b8df9fe6b3e ("cam: sdl_sink: Add NV12 texture support")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
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Extend the SDL sink with support for NV12 textures, useful on platforms
that don't support packed YUYV formats.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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In order to prepare for NV12 support, implement support for multi-planar
formats in the SDL sink. This mainly consists in passing a vector of
plane data to the SDLTexture::update() function instead of a single
value.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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In preparation for the addition of NV12 support in the SDL sink, rename
the sdl_texture_yuyv.{cpp,h} files to just "yuv". Separate
sdl_texture_nv12.{cpp,h} files could be added instead, but given how
short the implementation will be, grouping all YUV formats in a single
file is better.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The line stride of the texture is currently hardcoded based on the image
width, which may not match the real stride. Use the stride value from
the stream configuration instead.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Eric Curtin <ecurtin@redhat.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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One typo is corrected, and this format is added to one further table
where it was missing entirely.
Signed-off-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 python3-yaml package (containing the PyYAML Python package) shipped
by Debian stable is documented as a YAML 1.1 parser:
Python3-yaml is a complete YAML 1.1 parser and emitter for Python3.
PyYAML doesn't implement YAML 1.2 support, but ignores the minor number
of the YAML directive, and thus doesn't choke on the libcamera internal
files used to generate format- and control-related source code that
explicitly state conformance with YAML 1.2. Still, given that we don't
use any feature of YAML 1.2, and that the tuning data files now use YAML
1.1, switch the internal YAML files to version 1.1 as well for
consistency.
The main drawback of YAML 1.1 is that the unquoted literal strings Yes,
No, On and Off will be parsed as booleans. We need to be careful to
avoid those values in YAML files, until libcamera can switch to YAML 1.2
once more recent versions of libyaml get shipped by the distributions we
want to support. This is however not an issue introduced by this change,
as the existing YAML 1.2 files were parsed with the YAML 1.1 string
literal parsing rules anyway.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Florian Sylvestre <fsylvestre@baylibre.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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YAML 1.2 support has been added in libyaml in version 0.2.3. Debian
stable ships version 0.2.2 of libyaml, which causes parse errors of the
tuning tuning data files due to the YAML 1.2 directive at the beginning.
As we don't use any feature of YAML 1.2, downgrade the data files to
YAML 1.1.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Florian Sylvestre <fsylvestre@baylibre.com>
Reviewed-by: Florian Sylvestre <fsylvestre@baylibre.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Currently the pipeline handler advertises controls handled by the IPA
from a ControlInfoMap it manually constructs. This is wrong, as the IPA
module is the component that knows what controls it supports. Fix this
by moving the ControlInfoMap construction to the IPA module, and pass it
to the pipeline handler as a return value from the IPA init() function.
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>
Reviewed-by: Florian Sylvestre <fsylvestre@baylibre.com>
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Several NXP i.MX8 SoCs (such as the i.MX8MN and i.MX8MP) contain a
camera pipeline made of sensor interfaces (with parallel and/or CSI-2
receivers) and an image processing engine named ISI. The ISI contains an
input crossbar switch and one or more processing pipelines capable of
format conversion and scaling.
This is a good candidate for the simple pipeline handler as a first
step. The i.MX8MP should eventually graduate to having its own pipeline
handler as it also contains two ISP instances (supported by the rkisp1
driver).
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
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If a subdev supports the internal routing API, pads unrelated to the
pipeline for a given camera sensor may carry streams for other cameras.
The link setup logic is updated to take this into account, by avoiding
disabling links to unrelated pads.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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When traversing the media graph to discover a pipeline from the camera
sensor to a video node, all sink-to-source paths inside subdevs are
considered. This can lead to invalid paths being followed, when a subdev
has restrictions on its internal routing.
The V4L2 API supports exposing subdev internal routing to userspace.
Make use of this feature, when implemented by a subdev, to restrict the
internal paths to the currently active routes. If a subdev doesn't
implement the internal routing operations, all source pads are
considered, as done today.
This change is needed to properly support multiple sensors with devices
such as the NXP i.MX8 ISI or the MediaTek i350 and i500 SENINF. Support
for changing routes dynamically will be added later when required.
Signed-off-by: Phi-Bang Nguyen <pnguyen@baylibre.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
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To setup links the pipeline handler iterates over all entities in the
pipeline and disables all links but the ones we want to enable. Some
entities don't allow multiple sink links to be enabled, so the iteration
needs to be based on sink entities, disabling all their links first and
then enabling the sink link that is part of the pipeline.
The loop implementation iterates over all Entity instances, and uses
their source link to locate the MediaEntity for the connected sink. The
sink entity is then processed in the context of the source's loop
iteration. This prevents the code from being able to access extra
information about the sink entity, as we only have access to the
MediaEntity, not the Entity.
To prepare for subdev routing support that will require accessing
additional entity information, refactor the loop to process the sink
entity in the context of its Entity instance.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
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Reset the routing table of subdevices supporting the V4L2 streams API to
its default state when initializing the pipeline handler. This avoids
issues caused by usage of leftover state.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
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Extend the V4L2Subdevice class to support getting and setting routing
tables.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
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Collect subdev capabilities at open() time.
Model the V4L2SubdevCapabilties as V4L2Capability from the video
device class.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The V4L2Subdevice::Whence enumerations defines two values that should
correspond to the V4L2_SUBDEV_FORMAT_ACTIVE and V4L2_SUBDEV_FORMAT_TRY
definitions.
The V4L2 symbols are defined as:
V4L2_SUBDEV_FORMAT_TRY = 0,
V4L2_SUBDEV_FORMAT_ACTIVE = 1,
While the libcamera defined enumeration is:
enum Whence {
ActiveFormat,
TryFormat,
}
As V4L2Subdevice::Whence values are used to populate data types
defined in v4l2-subdev.h used as arguments to VIDIOC_SUBDEV_*
ioctls, the V4L2Subdevice class is required to adjust their value as:
subdevFmt.which = whence == ActiveFormat ? V4L2_SUBDEV_FORMAT_ACTIVE
: V4L2_SUBDEV_FORMAT_TRY;
Drop the adjustment by defining :
Whence::TryFormat = V4L2_SUBDEV_FORMAT_TRY;
Whence::ActiveFormat = V4L2_SUBDEV_FORMAT_ACTIVE;
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add missing 32-bit packet YUV 4:4:4 formats. These formats are used by
the i.MX8 ISI driver.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
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The YamlParser::getList<>() function returns an std::optional<> to allow
callers to identify cases where parsing the .yaml file failed from cases
where the parsed list is just empty.
The current implementation returns a default constructed std::optional
in case of errors with
return {};
The returned value is thus equal to std::nullopt, but the code can be
easily misinterpreted as returning an empty vector by a reader.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The V4L2_PIX_FMT_JPEG and V4L2_PIX_FMT_MJPEG formats are under-specified
and are used interchangeably by kernel drivers.
Map both of them to formats::MJPEG and use the newly re-introduced
V4L2VideoDevice::toV4L2PixelFormat() to map to the one actually used by
the video device.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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Now that V4L2PixelFormat::fromPixelFormat() returns a list of formats
to chose from, select the one supported by the video device by matching
against the list of supported pixel formats.
The first format found to match one of the device supported ones is
returned.
As the list of pixel formats supported by the video device does not
change at run-time, cache it at device open() time. Maximize the
lookup efficiency by storing the list of supported V4L2PixelFormat in an
std::unordered_set<>.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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Multiple V4L2 formats can be associated with a single PixelFormat.
Now that users of V4L2PixelFormat::fromPixelFormat() have been converted
to use V4L2VideoDevice::toV4L2PixelFormat(), return the full list of
V4L2 formats in order to prepare to match them against the ones
supported by the video device.
The V4L2 compatibility layer, not having any video device to interact
with, is converted to use the first returned format unconditionally.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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This is a partial revert of commit 395d43d6d75b ("libcamera:
v4l2_videodevice: Drop toV4L2PixelFormat()")
The function was removed because it incorrectly maps non-contiguous V4L2
format variants (ie V4L2_PIX_FMT_YUV420M) to the API version supported
by the video device (singleplanar API and multiplanar API). It was
decided at the time to remove the function and let its users call
directly V4L2PixelFormat::fromPixelFormat() which accepts a
'multiplanar' flags.
As we aim to associate multiple V4L2PixelFormat to a single libcamera
format, the next patches will verify which of them is actually supported
by the video device. For now, return the contiguous version
unconditionally.
Re-introduce V4L2VideoDevice::toV4L2PixelFormat() and convert all
the V4L2PixelFormat::fromPixelFormat() users to use it.
The V4L2 compatibility layer is the only outlier as it doesn't have a
video device to poke, hence it still uses
V4L2PixelFormat::fromPixelFormat().
Next patches will implement the device format matching logic and handle
the non-contiguous plane issue in V4L2VideoDevice::toV4L2PixelFormat().
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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To each libcamera PixelFormat two V4L2 formats are associated, the
'single' and 'multi' format variants.
The two versions list plane contiguous and non-contiguous format
variants, and an optional argument to V4L2PixelFormat::fromPixelFormat()
was used to select which one to pick.
In order to prepare to remove V4L2PixelFormat::fromPixelFormat(), and
considering that no caller in the codebase uses the non-contiguous
format variant, merge the two formats vectors in a single one and
default the selection to the first available one, which is functionally
equivalent to what is currently implemented.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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