Working on SoftISP
It is not libcamera's responsibility to handle memory mappings. Switch from the soon to be removed Plane class which deals with memory mappings to FrameBuffer::Plane which just describes it. This makes the transition to the full FrameBuffer easier. As the full FrameBuffer interface has not yet spread to all parts of libcamera core it is hard to create efficient caching of memory mappings in the qcam application. This will be fixed in a later patch, for now the dmabuf is mapped and unmapped each time it is seen by the application. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
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Documentation | ||
include | ||
licenses | ||
package/gentoo/media-libs/libcamera | ||
src | ||
test | ||
utils | ||
.clang-format | ||
.gitignore | ||
meson.build | ||
meson_options.txt | ||
README.rst |
.. section-begin-libcamera =========== libcamera =========== **A complex camera support library for Linux, Android, and ChromeOS** Cameras are complex devices that need heavy hardware image processing operations. Control of the processing is based on advanced algorithms that must run on a programmable processor. This has traditionally been implemented in a dedicated MCU in the camera, but in embedded devices algorithms have been moved to the main CPU to save cost. Blurring the boundary between camera devices and Linux often left the user with no other option than a vendor-specific closed-source solution. To address this problem the Linux media community has very recently started collaboration with the industry to develop a camera stack that will be open-source-friendly while still protecting vendor core IP. libcamera was born out of that collaboration and will offer modern camera support to Linux-based systems, including traditional Linux distributions, ChromeOS and Android. .. section-end-libcamera .. section-begin-getting-started Getting Started --------------- To fetch the sources, build and install: :: git clone git://linuxtv.org/libcamera.git cd libcamera meson build ninja -C build install Dependencies ~~~~~~~~~~~~ The following Debian/Ubuntu packages are required for building libcamera. Other distributions may have differing package names: A C++ toolchain: [required] Either {g++, clang} for libcamera: [required] meson ninja-build python3-yaml for device hotplug enumeration: [optional] pkg-config libudev-dev for qcam: [optional] qtbase5-dev libqt5core5a libqt5gui5 libqt5widgets5 for documentation: [optional] python3-sphinx doxygen .. section-end-getting-started