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2021-03-03android: Introduce CameraBuffer interfaceJacopo Mondi
In order to provide support for different memory backends, move the MappedCamera3Buffer class definition outside of the CameraDevice class to its own file and rename it in CameraBuffer. The interface defined in camera_buffer.h will be implemented by different backends that will be placed in the src/android/mm subdirectory. Provide a first implementation for the 'generic android' backend which matches the existing one. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-02-19android: libyuv: Introduce PostProcessorYuvHirokazu Honda
This adds PostProcessorYuv. It supports NV12 buffer scaling using libyuv. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-02-11meson: Fix coding style when declaring arraysLaurent Pinchart
The meson.build files mix array declarations with and without a space after the opening and before the closing square bracket. The vast majority of cases don't use spaces, so standardize on that. While it it, fix indentation in a few places. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-02-04android: Try build with a local libyuv firstHirokazu Honda
There are build environments where the wrap-based download is prohibited by "--wrap-mode nodownload". In such cases, libyuv needs to be provided by the build environment. To support this, this changes the meson file to first try using a local libyuv, and if it fails, download libyuv code and build with it as a fallback. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-02-04subprojects: Add libyuv and built if -Dandroid=enabledHirokazu Honda
Android HAL adaptation layer may need image processing, for example, scaling and format conversion. Libyuv is a general image processing. This adds libyuv to subprojects, so that it is forked locally and can be used with Android HAL implementation code. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-28android: jpeg: Introduce a simple image thumbnailerUmang Jain
Add a basic image Thumbnailer class for the frames being captured. Currently, the thumbnailer can scale NV12 frames. It shall be used to generate a thumbnail image for EXIF metadata, in the subsequent commit. Signed-off-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-21android: metadata: Disable -WshadowKieran Bingham
Do not warn on shadowed variables inside the metadata library, which is directly imported without modifications. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-16android: jpeg: Port to PostProcessor interfaceUmang Jain
Port the CameraStream's JPEG-encoding bits to PostProcessorJpeg. This encapsulates the encoder and EXIF generation code into the PostProcessorJpeg layer and removes these specifics related to JPEG, from the CameraStream itself. Signed-off-by: Umang Jain <email@uajain.com> Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.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> Change-Id: Id9e6e9b2bec83493a90e5e126298a2bb2ed2232a
2020-10-14android: camera_worker: Introduce CameraWorkerJacopo Mondi
The Android camera framework provides for each buffer part of a capture request an acquisition fence the camera HAL is supposed to wait on before using the buffer. As the libcamera HAL runs in the camera service thread, it is not possible to perform a synchronous wait there. Introduce a CameraWorker class that runs an internal thread to wait on a set of fences before queueing a capture request to the libcamera::Camera. Fences completion is handled through a simple poll, similar in implementation to the sync_wait() function provided by libdrm. Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-10-07android: camera_stream: Break out CameraStreamJacopo Mondi
Break CameraStream out of the CameraDevice class. No functional changes, only the code is moved. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-09-16libcamera: Turn the android option into a featureLaurent Pinchart
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>
2020-09-10android: jpeg: Add EXIF infrastructureKieran Bingham
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>
2020-08-06android: Introduce JPEG encodingKieran Bingham
Provide an encoder interface and implement a JPEG encoder using libjpeg. Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-05-13licenses: License all meson files under CC0-1.0Laurent Pinchart
In an attempt to clarify the license terms of all files in the libcamera project, the build system files deserve particular attention. While they describe how the binaries are created, they are not themselves transformed into any part of binary distributions of the software, and thus don't influence the copyright on the binary packages. They are however subject to copyright, and thus influence the distribution terms of the source packages. Most of the meson.build files would not meet the threshold of originality criteria required for copyright protection. Some of the more complex meson.build files may be eligible for copyright protection. To avoid any ambiguity and uncertainty, state our intent to not assert copyrights on the build system files by putting them in the public domain with the CC0-1.0 license. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Giulio Benetti <giulio.benetti@micronovasrl.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Naushir Patuck <naush@raspberrypi.com> Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Paul Elder <paul.elder@ideasonboard.com> Acked-by: Show Liu <show.liu@linaro.org>
2020-02-13android: Remove internal threadLaurent Pinchart
Now that libcamera creates threads internally and doesn't rely on an application-provided event loop, remove the thread from the Android Camera HAL layer. The CameraProxy class becomes meaningless, remove it and communicate directly from the CameraHalManager to the CameraDevice. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org>
2019-10-30android: Replace ThreadRPC with blocking method callJacopo Mondi
Use the newly introduced InvocationTypeBlocking message type to replace the blocking message delivery implemented with the ThreadRPC class in the Android camera HAL. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-09-05android: Add CameraMetadata helper classLaurent Pinchart
The new CameraMetadata helper class wraps the Android camera_metadata_t to simplify its usage. Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-08-12android: hal: Add Camera3 HALJacopo Mondi
Add libcamera Android Camera HALv3 implementation. The initial camera HAL implementation supports the LIMITED hardware level and uses statically defined metadata and camera characteristics. Add a build option named 'android' and adjust the build system to selectively compile the Android camera HAL and link it against the required Android libraries. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-12android: Add camera metadata libraryJacopo Mondi
Import the Android camera metadata library from the ChromiumOS build system. The camera metadata library has been copied from https://chromium.googlesource.com/chromiumos/platform2 at revision 9e65ddd2c496e712f005ada9715decd2ff8e4a03 The original path in the Cros platform2/ repository is: camera/android/libcamera_metadata/src Create a new build target for the camera metadata library to create a static library to link against libcamera. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>