Hidenori MatsubayashiandGitHub
999fdad59c
Added the first draft version, but there are still a lot of unimplemented features.
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
// Copyright 2021 Sony Group Corporation. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef PACKAGES_CAMERA_CAMERA_ELINUX_GST_CAMERA_H_
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#define PACKAGES_CAMERA_CAMERA_ELINUX_GST_CAMERA_H_
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#include <gst/gst.h>
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#include <memory>
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#include <shared_mutex>
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#include <string>
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#include "camera_stream_handler.h"
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class GstCamera {
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public:
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GstCamera(std::unique_ptr<CameraStreamHandler> handler);
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~GstCamera();
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static void GstLibraryLoad();
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static void GstLibraryUnload();
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bool Play();
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bool Pause();
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bool Stop();
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bool SetZoomLevel(float zoom);
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float GetMaxZoomLevel() const { return max_zoom_level_; };
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float GetMinZoomLevel() const { return min_zoom_level_; };
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const uint8_t* GetPreviewFrameBuffer();
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int32_t GetPreviewWidth() const { return width_; };
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int32_t GetPreviewHeight() const { return height_; };
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private:
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struct GstCameraElements {
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GstElement* pipeline;
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GstElement* camerabin;
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GstElement* video_convert;
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GstElement* video_sink;
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GstElement* output;
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GstBus* bus;
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GstBuffer* buffer;
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};
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static void HandoffHandler(GstElement* fakesink, GstBuffer* buf,
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GstPad* new_pad, gpointer user_data);
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static gboolean HandleGstMessage(GstBus* bus, GstMessage* message,
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gpointer user_data);
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bool CreatePipeline();
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void DestroyPipeline();
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void Preroll();
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void GetZoomMaxMinSize(float& max, float& min);
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GstCameraElements gst_;
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std::unique_ptr<uint32_t> pixels_;
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int32_t width_ = -1;
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int32_t height_ = -1;
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std::shared_mutex mutex_buffer_;
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std::unique_ptr<CameraStreamHandler> stream_handler_;
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float max_zoom_level_;
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float min_zoom_level_;
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float zoom_level_ = 1.0f;
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};
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#endif // PACKAGES_CAMERA_CAMERA_ELINUX_GST_CAMERA_H_
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