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When iterating the camera3_stream_t received from the Android camera
framework to identify the MJPEG streams, the format check was performed
on the CameraStream created when iterating the non-MJPEG streams and not
on the format actually requested by Android. As the next patches will
remove the creation of CameraStream instances for MJPEG streams, use the
camera3_stream format to prepare for that.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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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Use the size() method of the CameraConfiguration class to retrieve the
index of the StreamConfiguration associated with a CameraStream and get
rid of the custom counter.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Acked-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 resolutions supported for the RAW formats cannot be tested from
a list of known sizes like the processed ones. This is mainly due to the
fact RAW streams are produced by capturing frames at the CSI-2 receiver
output and their size corresponds to the sensor's native sizes.
In order to obtain the RAW frame size generate a temporary
CameraConfiguration for the Role::StillCaptureRAW role and inspect the
map of StreamFormats returned by the pipeline handler.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Acked-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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As the RAW stream sizes needs to be calculated differently from the
processed one, break out the procedure to calculate the processed
(RGB/YUV) resolutions from initializeStreamConfigurations() in order to
prepare for RAW sizes calculation.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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 debug printouts to the CameraDevice::initializeStreamConfigurations()
function that help to follow the process of building the stream
configurations map.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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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When producing the list of image resolutions to claim as supported by the
camera HAL, the JPEG stream was assumed to be 'always valid' as, at the
time, there was no JPEG support in place at all.
With the introduction of support for JPEG compression, reporting
non-valid sizes as supported obviously causes troubles.
In order to avoid reporting non-supported resolutions as supported,
produce the list of available JPEG sizes by using the ones supported
by the YCbCr_420_888 format, from which the JPEG stream is encoded.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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The current implementation of CameraDevice::initializeStreamConfigurations()
fails if an image format marked as mandatory is not supported by the
libcamera::Camera device, but erroneously accepts non-mandatory
non-supported formats in the list of accepted ones.
Fix this by ignoring non supported image formats which are not marked as
mandatory.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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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Allow disabling compilation of the Android HAL adaptation layer
automatically when a dependency is missing by turning the android option
into a feature. The default value is set to 'disabled' to match the
current behaviour.
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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According to the Android camera HAL C interface documentation, the
camera service is supposed to set callbacks after initializing the HAL
and calling get_number_of_cameras(), before any other calls to the
module. We rely on this behaviour and use callbacks unconditionally,
which would lead to a crash if the camera service behaved incorrectly.
While the camera service isn't supposed to behave incorrectly,
gracefully handling the error when opening cameras isn't costly, and
provides better diagnostic than a crash.
While at it, removed an unneeded [[maybe_unused]] attribute.
Reported-by: Coverity CID=298638
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add new option "--renderer=qt|gles" to select the renderer type,
"--renderer=gles" to accelerate format conversion and rendering
"--renderer=qt" is the original Qt rendering.
Signed-off-by: Show Liu <show.liu@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The viewfinderGL accelerates the format conversion by using OpenGL ES
shader.
The minimum Qt version is bumped to v5.4, as QOpenGLWidget wasn't
available before that.
Signed-off-by: Show Liu <show.liu@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Create ViewFinder base class and rename the original ViewFinder
as QPainter-based ViewFinder.
Signed-off-by: Show Liu <show.liu@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add OpenGL fragment and vertex shaders to convert two- and tri-planar
YUV formats to RGB. This will be used to accelerate YUV image rendering.
Signed-off-by: Show Liu <show.liu@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The function declaration is unnecessarily broken on two lines as it fits
on 80 characters, which makes reading the code nicer.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Support Greyscale images in the format converter by expanding the R8
component to each of the output RGB components.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Create a Exif object with various metadata tags set, just before
the encoder starts to encode the frame. The object is passed
directly as libcamera::Span<> to make sure EXIF tags can be set
in a single place i.e. in CameraDevice and the encoder only has
the job to write the data in the final output.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <email@uajain.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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Provide helper classes to utilise the libexif interfaces and link
against libexif to support tag additions when creating JPEG images.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Umang Jain <email@uajain.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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Android's orientation metadata cannot have identical numerical
value to libcamera's rotation property. This is due to the fact
that libcamera's rotation property specifies the correction angle
in anticlockwise direction whereas Android's orientation metadata
specifies the value in clockwise direction. Fix that by computing
corresponding value for clockwise direction from libcamera's rotation
property.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Just a small spelling fix: s/re-allcoation/reallocation
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Report the enabled pipelines when configuring the meson build hierarchy.
This helps clarify what pipelines are used when building, and is useful
when looking back through build-traces to see what was actually
configured.
This can be expanded upon to report other options, and ideally will be
replaced by mesons summary() functionality when it is available.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Complete the brief for MappedBuffer::maps_ documentation.
Fixes: b3383da79f1d ("libcamera: buffer: Create a MappedBuffer")
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The MediaDevice::setupLink() function fails (ioctl returns EINVAL) when
it passes only the MEDIA_LNK_FL_ENABLE flag to a link that is already
flagged with MEDIA_LNK_FL_ENABLE and MEDIA_LNK_FL_IMMUTABLE. Contrast to
media-ctl's equivalent media_setup_link() which ORs the new flags with
the existing values. Fix this by preserving all flags but
MEDIA_LNK_FL_ENABLED in MediaLink::setEnabled().
Signed-off-by: Dan Scally <djrscally@gmail.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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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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The sensor aligns the width and height to multiples of two pixels, and
the scaler has a x3 hardcoded factor. The output size must thus be
aligned to 6 pixels, not 3. Fix it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The payload size in a captured framebuffer is usually equal to the
buffer size. However, for compressed formats, the payload may be
smaller Only write the payload when capturing to a file.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The V4L2CameraProxy always calls V4L2Camera::getStreamConfig() right
after V4L2Camera::open(), and never afterwards. Simplify the code by
returning the initial configuration from V4L2Camera::open() and removing
V4L2Camera::getStreamConfig().
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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The V4L2 compatibility layer only uses the fmt.pix field of
curV4L2Format_. There's no need to cache the full v4l2_format, store
v4l2_pix_format only and rename the member variable from curV4L2Format_
to v4l2PixFormat_. While at it, group the V4L2-related member variables
together in the V4L2CameraProxy class.
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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The setFmtFromConfig() method doesn't modify its parameter, make it
const.
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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Print the timestamp of the captured buffer in addition to the frame
rate, as this is more precise information that can help debugging issue.
The log changes from
Using camera \_SB_.PCI0.XHC_.RHUB.HS05-5:1.0-0bda:58f4
Capture until user interrupts by SIGINT
fps: 0.00 stream0 seq: 000000 bytesused: 169968
fps: 28.57 stream0 seq: 000002 bytesused: 170352
fps: 31.25 stream0 seq: 000003 bytesused: 170428
fps: 32.26 stream0 seq: 000004 bytesused: 170672
fps: 27.78 stream0 seq: 000005 bytesused: 170568
to
Using camera \_SB_.PCI0.XHC_.RHUB.HS05-5:1.0-0bda:58f4
Capture until user interrupts by SIGINT
93473.942525 (0.00 fps) stream0 seq: 000000 bytesused: 183940
93474.006528 (15.62 fps) stream0 seq: 000002 bytesused: 183512
93474.038525 (31.25 fps) stream0 seq: 000003 bytesused: 183760
93474.074530 (27.77 fps) stream0 seq: 000004 bytesused: 182704
93474.106581 (31.20 fps) stream0 seq: 000005 bytesused: 182768
While at it, compute the frame rate on the buffer timestamps instead of
sampling the clock in the request completion handler.
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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The standard way in C++17 to specify that a function or function
argument may be unused it to specify the [[maybe_unused]] attribute.
Replace manual void casts to silence compiler warnings.
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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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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Now that libcamera uses C++17, the C++ standard library provides
std::clamp(). Drop our custom utils::clamp() function.
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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Due to popular request, move from C++14 to C++17. This will allow
dropping some custom constructs (such as a custom utils::clamp),
benefiting from new language features, and dropping gcc 5 and 6 from the
compilation tests.
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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In C++, unlike in C, a function that takes no argument doesn't need to
specify void in the arguments list. Drop the unnecessary specifiers.
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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Commit 15df621fb9a7 ("libcamera: ipu3: Configure ImgU with the computed
parameters") added an empty "imgu." file by mistake. Remove it.
Fixes: 15df621fb9a7 ("libcamera: ipu3: Configure ImgU with the computed parameters")
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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Instead of using "delete obj" in the custom deleter of the shared
object, we should have been using the "obj->deleteLater()" to explain
how the deleteLater() API should be used in practice.
Fixes: 9558886f7a85 ("libcamera: object: Add deleteLater() support)
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Extend the support for camera hotplug from libcamera's CameraManager
to CameraHalManager. Use camera module callbacks to let the framework
know about the hotplug events and change the status of cameras being
hotplugged or unplugged via camera_device_status_change().
Introduce a map cameraIdsMap_ which book-keeps all cameras seen in the
past by the CameraHalManager. If the camera is seen for the first time,
a new id is assigned to it. If the camera has been seen before by the
manager, its old id is reused. IDs for internal cameras start with
'0' and for external cameras, they start with '1000'. Accesses to
cameraIdsMap_ and cameras_ are protected by a mutex.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a public member function to get the libcamera::Camera pointer
associated with the CameraDevice. This will help to find the CameraDevice
object in CameraHalManager when the hotplug support is extended in the
Android layer.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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CameraDevice needs to be wrapper into the std::shared_ptr instead
of std::unique_ptr to enable refcounting. The refcounting will help
us to support hotplug and hot-unplug CameraHalManager operations
in the subsequent commit.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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camera_module_callbacks are invoked to inform the framework about
the events occurring module-wide. Allow to set these callbacks in
camera_hal_manager as this will be used to integration camera hotplug
support via camera_module_callbacks::camera_device_status_change in
subsequent commit.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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We currently have no way to identify if the UVC device is external
or internal(i.e. non-removable) to the system to set this property.
Until we have a starting point to resolve this, treat all UVC cameras.
Add a \todo explaining the situation for the same.
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Introduce a pipeline-handler writers guide to provide a walk through of
the steps and concepts required to implement a new Pipeline Handler.
Signed-off-by: Chris Chinchilla <chris@gregariousmammal.com>
[Reflow/Rework, update to mainline API]
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
[Further reworks and review]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Provide a tutorial and walk through guide for writing an applications
with libcamera.
Signed-off-by: Chris Chinchilla <chris@gregariousmammal.com>
[Reflow/Rework, update to mainline API]
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
[Further reworks and review]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Create an introduction and overview for new developers to libcamera.
Provide an overview of the Camera Stack, and Architecture of libcamera
and introduce the main concepts of libcamera.
Signed-off-by: Chris Chinchilla <chris@gregariousmammal.com>
[Kieran: Rework/Reflow, add diagrams, licensing]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Reading the controls and properties does not modify the camera's state
and can be marked as const operations.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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operations
Reading the controls and properties does not modify the pipeline's state
and can be marked as const operations.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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