爬虫-哔哩哔哩-视频下载 源码

private void button2_Click(object sender, EventArgs e)
        {
            label2.Visible = true;
            HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem
            {
                URL = textBox1.Text.Trim(),
                Host = "www.bilibili.com",
                UserAgent = userAgent
            };
            var result = http.GetHtml(item);
            string html = result.Html;
            string gl = HttpHelper.GetBetweenHtml(html, "window.__playinfo__=", "</script><script>window.__INITIAL_STATE__");
            title = HttpHelper.GetBetweenHtml(html, "<title data-vue-meta=\"true\">", "</title>");
            root = (Root)HttpHelper.JsonToObject<Root>(gl);
            if (root.code == 0)
            {
 
                RadioButton[] radioButton = new RadioButton[root.data.accept_description.Count];
                //控件上边缘与容器上边缘的距离  
                int top = 6;
                //记录循环，控件左上角相对于容器左上角的坐标  
                int i = 0;
                int n = 0;
                GroupBox gb = new GroupBox();
                panel1.AutoScroll = true;
                for (n = 0; n < root.data.accept_description.Count; n++)
                {
                    radioButton[n] = new RadioButton();
                    button3.Visible = true;
                    if (n % 3 == 0 && n != 0)
                    {
                        top += 30;
                        i = 0;
                    }
                    if (n == 0)
                    {
                        radioButton[n].Checked = true;
                    }
                    radioButton[n].AutoSize = true;
                    radioButton[n].Top = top;
                    //控件左上角相对于容器左上角的坐标，以及每个控件之间的距离  
                    radioButton[n].Location = new Point(i * 150 + 2, top);
                    // MessageBox.Show(name[n].ToString());  
                    radioButton[n].Text = root.data.accept_description[n];
                    radioButton[n].Visible = true;
                    radioButton[n].Name = "radioButton" + n;
                    radioButton[n].Tag = n;
                    this.panel1.Controls.Add(radioButton[n]);
                    i++;
                }
            };
        }
          //点击下载按钮的代码
            foreach (var item in panel1.Controls)
            {
                if (item is RadioButton)
                {
                    RadioButton radio = item as RadioButton;
                    if (radio.Checked)
                    {
                        var tag = int.Parse(radio.Tag.ToString());
                        string videourl = root.data.dash.video.ToList()[tag].baseUrl;
                        string audiourl = root.data.dash.audio.ToList()[0].baseUrl;
                        //DownloadAudio(audiourl);
                        //DownloadVideo(videourl);
 
                        Thread thread = new Thread(new ParameterizedThreadStart(DownloadVideo));
                        thread.Start(videourl);
                        Thread thread2 = new Thread(new ParameterizedThreadStart(DownloadAudio));
                        thread2.Start(audiourl);
 
                    }
 
                }
//合成代码
private void button4_Click(object sender, EventArgs e)
        {
            this.Invoke((EventHandler)delegate
            {
                textBox2.Text += DateTime.Now.ToString() + "合并中 请稍后...\r\n";
            });
            string path = textBox3.Text + guid ;
            string avi = textBox3.Text +"合并视频";
            string arguments = "-i " + path + ".avi  -i " + path + ".aac  -vcodec copy -acodec copy " + avi + ".avi";
            //arguments = "-i " + path + ".avi  -i " + path + ".aac  -c:v copy -c:a aac -strict experimental " + avi + ".avi";
            Process p = new Process();
            p.StartInfo.FileName = "ffmpeg.exe";
            p.StartInfo.Arguments = arguments;
            p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
            //  p.StartInfo.RedirectStandardError = true;
            p.ErrorDataReceived += new DataReceivedEventHandler(Output);//外部程序
            p.Start();//启动线程
            timer1.Enabled = true;
        }