using OpenCvSharp;
using System;

namespace OpenCVExample
{
    public class Program
    {
        /// <summary>
        ///  讀取本地視頻并逐幀顯示
        /// </summary>
        public static void ReadLocalVideo()
        {
            VideoCapture cap = new VideoCapture("Resources\\test_video.mp4");   // 讀取本地視頻文件
            if (!cap.IsOpened())
            {
                Console.WriteLine("VidepCapture open failed");
                return;
            }
            while (true)
            {    // 如果cap初始化成功
                Mat frame = new Mat();
                if (cap.Read(frame))    // 抓取和解碼，返回下一幀
                {
                    Cv2.ImShow("video Result", frame);
                    if (Cv2.WaitKey(1) == (int)('q'))   // 用戶輸入q鍵退出
                    {
                        break;
                    }
                }
                else
                {
                    // 當視頻播放完畢，也退出
                    Console.WriteLine("there is no frame to read");
                    break;
                }

            }
        }

        static void Main(string[] args)
        {
            ReadLocalVideo();
           
            //Console.ReadKey();
        }
    }
}