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https://git.libcamera.org/libcamera/libcamera.git
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c753223ad6
Allow reuse of the Request object by implementing reuse(). This means the applications now have the responsibility of freeing the Request objects, so make all libcamera users (cam, qcam, v4l2-compat, gstreamer, android) do so. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
80 lines
1.6 KiB
C++
80 lines
1.6 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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* request.h - Capture request handling
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*/
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#ifndef __LIBCAMERA_REQUEST_H__
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#define __LIBCAMERA_REQUEST_H__
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#include <map>
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#include <memory>
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#include <stdint.h>
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#include <unordered_set>
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#include <libcamera/controls.h>
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#include <libcamera/signal.h>
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namespace libcamera {
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class Camera;
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class CameraControlValidator;
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class FrameBuffer;
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class Stream;
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class Request
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{
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public:
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enum Status {
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RequestPending,
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RequestComplete,
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RequestCancelled,
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};
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enum ReuseFlag {
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Default = 0,
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ReuseBuffers = (1 << 0),
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};
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using BufferMap = std::map<const Stream *, FrameBuffer *>;
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Request(Camera *camera, uint64_t cookie = 0);
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Request(const Request &) = delete;
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Request &operator=(const Request &) = delete;
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~Request();
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void reuse(ReuseFlag flags = Default);
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ControlList &controls() { return *controls_; }
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ControlList &metadata() { return *metadata_; }
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const BufferMap &buffers() const { return bufferMap_; }
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int addBuffer(const Stream *stream, FrameBuffer *buffer);
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FrameBuffer *findBuffer(const Stream *stream) const;
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uint64_t cookie() const { return cookie_; }
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Status status() const { return status_; }
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bool hasPendingBuffers() const { return !pending_.empty(); }
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private:
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friend class PipelineHandler;
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void complete();
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bool completeBuffer(FrameBuffer *buffer);
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Camera *camera_;
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CameraControlValidator *validator_;
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ControlList *controls_;
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ControlList *metadata_;
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BufferMap bufferMap_;
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std::unordered_set<FrameBuffer *> pending_;
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const uint64_t cookie_;
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Status status_;
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bool cancelled_;
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_REQUEST_H__ */
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