Virtual pipeline handler should provide colorSpace in
generateConfiguration() and validate the colorspace in validate().
It is mandatory for a pipeline handler to set the colorspace if it
is unset in the stream configuration, during validate().
For choosing the colorspace for the generated NV12 frames, following
points have been taken into account:
- The transfer function should be Rec.709 for NV12
- The YCbCr encoding has been chosen Rec.709 as it is the most common
than Rec.601/Rec.2020
- Range should be 'Limited' as with the NV12 pixel format.
Hence, the closest colorspace match is ColorSpace::Rec709 which is
set for the virtual pipeline handler.
Signed-off-by: Umang Jain <uajain@igalia.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Robert Mader <robert.mader@collabora.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
For debugging purposes, threads can be assigned a name, which eases
distinguishing between them in e.g. htop or gdb. This uses a
Linux-specific API for now which is limited to 15 characters (+ null
terminator), so truncation is done and names for existing thread
instantiations were chosen to be consise.
[Kieran: Apply checkstyle suggestions, rebase on proxy rework]
Signed-off-by: Schulz, Andreas <andreas.schulz2@karlstorz.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Currently the virtual pipeline generates the images synchronously. This is not
ideal because it blocks the camera manager's internal thread, and because its
behaviour is different from other existing pipeline handlers, all of which
complete requests asynchronously.
So move the image generation to a separate thread by deriving `VirtualCameraData`
from `Thread`, as well as `Object` and using the existing asynchronous signal
and method call mechanism.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Just return an `std::unique_ptr` constructed from an empty
initializer instead of doing a `reset()` on the existing
`config` variable and returning that. This is simpler.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
The virtual pipeline handler prints an error message when its
configuration file can't be opened. Not providing a configuration file
is the default method to disable virtual cameras, so this error is
confusing for users. Replace it with a debug message when the
configuration file is not found, and keep an error message when it
exists but can't be opened.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
`PixelFormatInfo::planes.size()` always returns 3 since `planes` is
an array, but that is not the number of planes of the pixel format.
Use the `numPlanes()` getter instead.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This patch introduces the configuration file for Virtual Pipeline
Handler. The config file is written in yaml, and the format is
documented in `README.md`.
The config file will define the camera with IDs, supported formats and
image sources, etc. In the default config file, only Test Patterns are
used. Developers can use real images loading if desired.
Signed-off-by: Konami Shu <konamiz@google.com>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Co-developed-by: Yunke Cao <yunkec@chromium.org>
Signed-off-by: Yunke Cao <yunkec@chromium.org>
Co-developed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Add a test pattern generator class hierarchy for the Virtual
pipeline handler.
Implement two types of test patterns: color bars and diagonal lines
generator and use them in the Virtual pipeline handler.
A shifting mechanism is enabled. For each frame, the image is shifted to
the left by 1 pixel. It drops FPS though.
Add a dependency for libyuv to the build system to generate images
in NV12 format from the test pattern.
Signed-off-by: Konami Shu <konamiz@google.com>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Co-developed-by: Yunke Cao <yunkec@chromium.org>
Signed-off-by: Yunke Cao <yunkec@chromium.org>
Co-developed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Umang Jain
Schulz, Andreas
Barnabás Pőcze
Laurent Pinchart
Barnabás Pőcze
Harvey Yang