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https://git.libcamera.org/libcamera/libcamera.git
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83ae84eb13
MJPEG streams must be created referencing a libcamera stream. This stream may already be provided by the request configuration, in which case the existing stream is utilised. If no compatible stream is available to encode, a new stream is requested from the libcamera configuration. Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
122 lines
3.3 KiB
C++
122 lines
3.3 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* camera_device.h - libcamera Android Camera Device
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*/
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#ifndef __ANDROID_CAMERA_DEVICE_H__
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#define __ANDROID_CAMERA_DEVICE_H__
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#include <map>
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#include <memory>
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#include <tuple>
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#include <vector>
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#include <hardware/camera3.h>
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#include <libcamera/buffer.h>
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#include <libcamera/camera.h>
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#include <libcamera/geometry.h>
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#include <libcamera/request.h>
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#include <libcamera/stream.h>
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#include "libcamera/internal/log.h"
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#include "libcamera/internal/message.h"
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#include "jpeg/encoder.h"
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class CameraMetadata;
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struct CameraStream {
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CameraStream(libcamera::PixelFormat, libcamera::Size);
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~CameraStream();
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/*
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* The index of the libcamera StreamConfiguration as added during
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* configureStreams(). A single libcamera Stream may be used to deliver
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* one or more streams to the Android framework.
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*/
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unsigned int index;
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libcamera::PixelFormat format;
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libcamera::Size size;
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Encoder *jpeg;
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};
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class CameraDevice : protected libcamera::Loggable
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{
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public:
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CameraDevice(unsigned int id, const std::shared_ptr<libcamera::Camera> &camera);
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~CameraDevice();
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int initialize();
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int open(const hw_module_t *hardwareModule);
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void close();
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unsigned int id() const { return id_; }
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camera3_device_t *camera3Device() { return &camera3Device_; }
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int facing() const { return facing_; }
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int orientation() const { return orientation_; }
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void setCallbacks(const camera3_callback_ops_t *callbacks);
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const camera_metadata_t *getStaticMetadata();
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const camera_metadata_t *constructDefaultRequestSettings(int type);
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int configureStreams(camera3_stream_configuration_t *stream_list);
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int processCaptureRequest(camera3_capture_request_t *request);
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void requestComplete(libcamera::Request *request);
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protected:
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std::string logPrefix() const override;
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private:
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struct Camera3RequestDescriptor {
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Camera3RequestDescriptor(unsigned int frameNumber,
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unsigned int numBuffers);
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~Camera3RequestDescriptor();
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uint32_t frameNumber;
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uint32_t numBuffers;
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camera3_stream_buffer_t *buffers;
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std::vector<std::unique_ptr<libcamera::FrameBuffer>> frameBuffers;
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};
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struct Camera3StreamConfiguration {
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libcamera::Size resolution;
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int androidFormat;
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};
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int initializeStreamConfigurations();
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std::tuple<uint32_t, uint32_t> calculateStaticMetadataSize();
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libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer);
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void notifyShutter(uint32_t frameNumber, uint64_t timestamp);
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void notifyError(uint32_t frameNumber, camera3_stream_t *stream);
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CameraMetadata *requestTemplatePreview();
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libcamera::PixelFormat toPixelFormat(int format);
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std::unique_ptr<CameraMetadata> getResultMetadata(int frame_number,
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int64_t timestamp);
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unsigned int id_;
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camera3_device_t camera3Device_;
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bool running_;
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std::shared_ptr<libcamera::Camera> camera_;
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std::unique_ptr<libcamera::CameraConfiguration> config_;
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CameraMetadata *staticMetadata_;
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std::map<unsigned int, const CameraMetadata *> requestTemplates_;
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const camera3_callback_ops_t *callbacks_;
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std::vector<Camera3StreamConfiguration> streamConfigurations_;
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std::map<int, libcamera::PixelFormat> formatsMap_;
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std::vector<CameraStream> streams_;
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int facing_;
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int orientation_;
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unsigned int maxJpegBufferSize_;
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};
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#endif /* __ANDROID_CAMERA_DEVICE_H__ */
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