opencv_video_renderer.hpp

//
// © NTT DOCOMO BUSINESS, Inc. All Rights Reserved.
//
 
// Define “SKYWAY_ENABLE_OPENCV” if you want to use OpenCV functionality
#ifdef SKYWAY_ENABLE_OPENCV
 
#ifndef SKYWAY_MEDIA_OPENCV_VIDEO_RENDERER_HPP_
#define SKYWAY_MEDIA_OPENCV_VIDEO_RENDERER_HPP_
 
#include "skyway/media/i420_video_renderer.hpp"
 
#include <thread>
#include <unordered_set>
 
#include <memory>
 
#include <opencv2/opencv.hpp>
 
namespace skyway {
namespace media {
namespace opencv {
 
class OpenCVVideoRenderer : public I420VideoRenderer {
public:
    class Listener {
    public:
        virtual ~Listener()               = default;
        virtual void OnFrame(cv::Mat mat) = 0;
    };
 
    OpenCVVideoRenderer();
    ~OpenCVVideoRenderer();
 
    void RegisterListener(Listener* listener);
    void UnregisterListener(Listener* listener);
 
    // Impl I420VideoRenderer
    void OnFrame(const webrtc::VideoFrame& frame) override;
 
private:
    cv::Mat I420ToMat(const interface::I420Frame& frame);
    std::mutex listeners_mtx_;
    std::unordered_set<Listener*> listeners_;
};
}  // namespace opencv
}  // namespace media
}  // namespace skyway
 
#endif /* SKYWAY_MEDIA_V4L2_VIDEO_RENDERER_HPP_ */
#endif /* SKYWAY_ENABLE_OPENCV */