libcamera/vivid.git - libcamera pipeline handler for VIVID

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Age	Commit message (Expand)	Author
2021-08-19	libtest: camera_test: Plumb constructor to set LIBCAMERA_IPA_FORCE_ISOLATION	Umang Jain
2021-06-25	libcamera/base: Validate internal headers as private	Kieran Bingham
2020-12-09	libcamera: v4l2_device: Return a unique pointer from fromEntityName()	Laurent Pinchart
2020-09-21	test: Include specific headers instead of libcamera.h	Laurent Pinchart
2020-08-25	meson: Remove -Wno-unused-parameter	Laurent Pinchart
2020-05-16	libcamera: Move internal headers to include/libcamera/internal/	Laurent Pinchart
2020-05-13	licenses: License all meson files under CC0-1.0	Laurent Pinchart
2020-04-30	libcamera: v4l2_pixelformat: Move DRM/V4L2 format conversion	Laurent Pinchart
2020-03-19	libcamera: v4l2_videodevice: Rename toV4L2Fourcc to toV4L2PixelFormat	Laurent Pinchart
2020-03-18	libcamera: v4l2_videodevice: Rename exportBuffers() to allocateBuffers()	Laurent Pinchart
2020-03-18	test: libtest: buffer_source: Close video device right after allocation	Laurent Pinchart
2020-03-18	tests: remove IPA_PROXY_PATH environment variable	Kaaira Gupta
2020-03-06	test: Extract BufferSource class out of camera tests to libtest	Niklas Söderlund
2020-02-24	tests: Remove IPA_MODULE_PATH environment variable	Kieran Bingham
2019-11-20	test: Extract CameraTest class out of camera tests to libtest	Laurent Pinchart
2019-11-18	libcamera: Remove space between empty curly brackets	Laurent Pinchart
2019-07-12	libcamera: add IPA proxy	Paul Elder
2019-06-05	libcamera: ipa_manager: implement class for managing IPA modules	Paul Elder
2019-05-23	meson: Create and use a dependency for libcamera and its headers	Laurent Pinchart
2019-01-02	test: Move include definitions to libtest	Kieran Bingham
2019-01-01	test: libtest: Return all non-zero init values	Kieran Bingham
2019-01-01	test: libtest: Add test return codes	Kieran Bingham
2019-01-01	test: Move test objects to libtest	Kieran Bingham

ode>/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2020, Google Inc. * * Camera HAL stream */ #pragma once #include <memory> #include <queue> #include <vector> #include <hardware/camera3.h> #include <libcamera/base/mutex.h> #include <libcamera/base/thread.h> #include <libcamera/camera.h> #include <libcamera/framebuffer.h> #include <libcamera/geometry.h> #include <libcamera/pixel_format.h> #include "camera_request.h" #include "post_processor.h" class CameraDevice; class PlatformFrameBufferAllocator; class CameraStream { public: /* * Enumeration of CameraStream types. * * A camera stream associates an Android stream to a libcamera stream. * This enumeration describes how the two streams are associated and how * and where data produced from libcamera are delivered to the * Android framework. * * Direct: * * The Android stream is directly mapped onto a libcamera stream: frames * are delivered by the library directly in the memory location * specified by the Android stream (buffer_handle_t->data) and provided * to the framework as they are. The Android stream characteristics are * directly translated to the libcamera stream configuration. * * +-----+ +-----+ * | A | | L | * +-----+ +-----+ * | | * V V * +-----+ +------+ * | B |<---------------| FB | * +-----+ +------+ * * * Internal: * * Data for the Android stream is produced by processing a libcamera * stream created by the HAL for that purpose. The libcamera stream * needs to be supplied with intermediate buffers where the library * delivers frames to be processed and then provided to the framework. * The libcamera stream configuration is not a direct translation of the * Android stream characteristics, but it describes the format and size * required for the processing procedure to produce frames in the * Android required format. * * +-----+ +-----+ * | A | | L | * +-----+ +-----+ * | | * V V * +-----+ +------+ * | B | | FB | * +-----+ +------+ * ^ | * |-------Processing------| * * * Mapped: * * Data for the Android stream is produced by processing a libcamera * stream associated with another CameraStream. Mapped camera streams do * not need any memory to be reserved for them as they process data * produced by libcamera for a different stream whose format and size * are compatible with the processing procedure requirements to produce * frames in the Android required format. * * +-----+ +-----+ +-----+ * | A | | A' | | L | * +-----+ +-----+ +-----+ * | | | * V V V * +-----+ +-----+ +------+ * | B | | B' |<---------| FB | * +-----+ +-----+ +------+ * ^ | * |--Processing--| * * * -------------------------------------------------------------------- * A = Android stream * L = libcamera stream * B = memory buffer * FB = libcamera FrameBuffer * "Processing" = Frame processing procedure (Encoding, scaling etc) */ enum class Type { Direct, Internal, Mapped, }; CameraStream(CameraDevice *const cameraDevice, libcamera::CameraConfiguration *config, Type type, camera3_stream_t *camera3Stream, CameraStream *const sourceStream, unsigned int index); CameraStream(CameraStream &&other); ~CameraStream(); Type type() const { return type_; } camera3_stream_t *camera3Stream() const { return camera3Stream_; } const libcamera::StreamConfiguration &configuration() const; libcamera::Stream *stream() const; CameraStream *sourceStream() const { return sourceStream_; } int configure(); int process(Camera3RequestDescriptor::StreamBuffer *streamBuffer); libcamera::FrameBuffer *getBuffer(); void putBuffer(libcamera::FrameBuffer *buffer); void flush(); private: class PostProcessorWorker : public libcamera::Thread { public: enum class State { Stopped, Running, Flushing, }; PostProcessorWorker(PostProcessor *postProcessor); ~PostProcessorWorker(); void start(); void queueRequest(Camera3RequestDescriptor::StreamBuffer *request); void flush(); protected: void run() override; private: PostProcessor *postProcessor_; libcamera::Mutex mutex_; libcamera::ConditionVariable cv_; std::queue<Camera3RequestDescriptor::StreamBuffer *> requests_ LIBCAMERA_TSA_GUARDED_BY(mutex_); State state_ LIBCAMERA_TSA_GUARDED_BY(mutex_) = State::Stopped; }; int waitFence(int fence); CameraDevice *const cameraDevice_; const libcamera::CameraConfiguration *config_; const Type type_; camera3_stream_t *camera3Stream_; CameraStream *const sourceStream_; const unsigned int index_; std::unique_ptr<PlatformFrameBufferAllocator> allocator_; std::vector<std::unique_ptr<libcamera::FrameBuffer>> allocatedBuffers_; std::vector<libcamera::FrameBuffer *> buffers_ LIBCAMERA_TSA_GUARDED_BY(mutex_); /* * The class has to be MoveConstructible as instances are stored in * an std::vector in CameraDevice. */ std::unique_ptr<libcamera::Mutex> mutex_; std::unique_ptr<PostProcessor> postProcessor_; std::unique_ptr<PostProcessorWorker> worker_; };