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http://libcamera.org/ 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. The project has not made an official release as of yet, so we're using the latest sha1 from master We utilise C++ 11 but we mandate GCC5+ due to a bug [0] in earlier versions which result in compile failures on our code base. [0] Bug 54316 - [C++11] move constructor for stringstream https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54316 Documentation and Tests are disabled from the build. With the following added to libcamera.config: BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y BR2_PACKAGE_LIBCAMERA=y ./utils/test-pkg -c libcamera.config -p libcamera br-arm-full [1/6]: SKIPPED br-arm-cortex-a9-glibc [2/6]: OK br-arm-cortex-m4-full [3/6]: SKIPPED br-x86-64-musl [4/6]: OK br-arm-full-static [5/6]: SKIPPED sourcery-arm [6/6]: SKIPPED Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> [Thomas: - add missing Config.in comment - remove empty newline at end of hash file - adjust indentation of upstream URL in Config.in help text] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> |
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Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches