Method process

extensions/opencv/FrameIO.h:35–40

    ~FrameWriteCallback() override = default;

    int64_t process(const std::shared_ptr<io::BaseStream>& stream) override {
      int64_t ret = 0;
      imencode(image_encoding_, image_mat_, image_buf_);
      ret = stream->write(image_buf_.data(), image_buf_.size());
      return ret;
    }

  private:
    std::vector<uchar> image_buf_;