在不使用媒体播放器[Winform]的情况下播放视频

Question

我想像那个家伙那样播放视频[link]。

我正在开发C#Windows窗体应用程序（而不是NXA）。但我不知道怎么做。我试过使用Microsoft.DirectX.AudioVideoPlayback，但没有成功。

这就是我迄今为止所尝试的：

OpenFileDialog rihanna = new OpenFileDialog();
if(rihanna.ShowDialog() == DialogResult.OK)
{
    video = new Video(rihanna.FileName);
    video.Owner = panel1;    
    video.Stop();    
}

现在我该怎么办？我试着使用视频课堂，但正如我所说的，它根本不起作用。我可以编译，但当我运行程序时，我看不到窗体窗口。

Answer 1

using Microsoft.DirectX.AudioVideoPlayback;
namespace Play_Video
{
public partial class Form1 : Form
{
    Video vdo;
    public string mode="play";
    public string PlayingPosition, Duration;
    public Form1()
    {
        InitializeComponent();
        VolumeTrackBar.Value = 4;
    }

    private void timer1_Tick(object sender, EventArgs e)
    {
        PlayingPosition = CalculateTime(vdo.CurrentPosition);
        txtStatus.Text = PlayingPosition + "/" + Duration;
        if (vdo.CurrentPosition >= vdo.Duration)
        {
            timer1.Stop();
            Duration = CalculateTime(vdo.Duration);
            PlayingPosition = "0:00:00";
            txtStatus.Text = PlayingPosition + "/" + Duration;
            vdo.Stop();
            btnPlay.BackgroundImage = Play_Video.Properties.Resources.btnplay;
            vdoTrackBar.Value = 0;
        }
        else
            vdoTrackBar.Value += 1;
    }
    private void openToolStripMenuItem_Click(object sender, EventArgs e)
    {
        if (vdo != null)
        {
            vdo.Stop();
            timer1.Stop();
            btnPlay.BackgroundImage = Play_Video.Properties.Resources.btnplay;
            vdoTrackBar.Value = 0;
        }
        OpenFileDialog openFileDialog = new OpenFileDialog();
        openFileDialog.ShowDialog();
        openFileDialog1.Title = "Select video file..";
        openFileDialog1.InitialDirectory = Application.StartupPath;
        openFileDialog1.DefaultExt = ".avi";
        openFileDialog.Filter = "Media Files|*.mpg;*.avi;*.wma;*.mov;*.wav;*.mp2;*.mp3|All Files|*.*";
        if (openFileDialog1.FileName != "")
        {
            Form1.ActiveForm.Text = openFileDialog.FileName + " - Anand Media Player";
            vdo = new Video(openFileDialog.FileName);
            vdo.Owner = panel1;
            panel1.Width = 700;
            panel1.Height = 390;
            Duration = CalculateTime(vdo.Duration);
            PlayingPosition = "0:00:00";
            txtStatus.Text = PlayingPosition + "/" + Duration;
            vdoTrackBar.Minimum = 0;
            vdoTrackBar.Maximum = Convert.ToInt32(vdo.Duration);
        }
    }
    private void btnPlay_Click(object sender, EventArgs e)
    {
        if (vdo != null)
        {
            if (vdo.Playing)
            {
                vdo.Pause();
                timer1.Stop();
                btnPlay.BackgroundImage = Play_Video.Properties.Resources.btnplay;
            }
            else
            {
                vdo.Play();
                timer1.Start();
                btnPlay.BackgroundImage = Play_Video.Properties.Resources.pause;
            }
        }
    }
    private void btnStop_Click(object sender, EventArgs e)
    {
        vdo.Stop();
        timer1.Stop();
        btnPlay.BackgroundImage = Play_Video.Properties.Resources.btnplay;
        vdoTrackBar.Value = 0;
    }
    public string CalculateTime(double Time)
    {
        string mm, ss, CalculatedTime;
        int h, m, s, T;
        Time = Math.Round(Time);
        T = Convert.ToInt32(Time);
        h = (T / 3600);
        T = T % 3600;
        m = (T / 60);
        s = T % 60;
        if (m < 10)
            mm = string.Format("0{0}", m);
        else
            mm = m.ToString();
        if (s < 10)
            ss = string.Format("0{0}", s);
        else
            ss = s.ToString();
        CalculatedTime = string.Format("{0}:{1}:{2}", h, mm, ss);
        return CalculatedTime;
    }
    private void VolumeTrackBar_Scroll(object sender, EventArgs e)
    {
        if (vdo != null)
        {
            vdo.Audio.Volume = CalculateVolume();
        }
    }
    public int CalculateVolume()
    {
      switch (VolumeTrackBar.Value)
        {
            case 1:
                return -1500;
            case 2:
                return -1000;
            case 3:
                return -700;
            case 4:
                return -600;
            case 5:
                return -500;
            case 6:
                return -400;
            case 7:
                return -300;
            case 8:
                return -200;
            case 9:
                return -100;
            case 10:
                return 0;
            default:
                return -10000;
        }
    }
    private void openFileDialog1_FileOk(object sender, CancelEventArgs e)
    {
        Duration = CalculateTime(vdo.Duration);
        PlayingPosition = "0:00:00";
        txtStatus.Text = PlayingPosition + "/" + Duration;
    }
    private void vdoTrackBar_Scroll(object sender, EventArgs e)
    {
        if (vdo != null)
        {
            vdo.CurrentPosition = vdoTrackBar.Value;
        }
    }
    private void Form1_Load(object sender, EventArgs e)
    {
        MaximizeBox = false;
    }
    private void exitToolItem_Click(object sender,EventArgs e)
    {
        Application.Exit();
    }
}
}

Answer 2

Okey命名空间是明确的：

using Microsoft.DirectX.AudioVideoPlayback;

形式中的一些全局变量：

Video vdo;
public string mode="play";
public string PlayingPosition, Duration;

现在在你的按钮或打开其他什么：

OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.ShowDialog();
openFileDialog1.Title = "Select video file..";
openFileDialog1.InitialDirectory = Application.StartupPath;
openFileDialog1.DefaultExt = ".avi";
openFileDialog.Filter = "Media Files|*.mpg;*.avi;*.wma;*.mov;*.wav;*.mp2;*.mp3|All Files|*.*";
vdo = new Video(openFileDialog.FileName);
vdo.Owner = panel1;
panel1.Width = 700;
panel1.Height = 390;
Duration = CalculateTime(vdo.Duration);
PlayingPosition = "0:00:00";
txtStatus.Text = PlayingPosition + "/" + Duration;
vdoTrackBar.Minimum = 0;
vdoTrackBar.Maximum = Convert.ToInt32(vdo.Duration);

在其他一些启动/暂停按钮代码中：

if (vdo.Playing)
{
   vdo.Pause();
   btnPlay.Text= "Play";
}
else
{
   vdo.Play();
   btnPlay.Text= "Pause";
}

---

顺便说一句：不要以女孩命名代码中的变量/成员或其他东西。。。

如果你不确定如何命名，这里有一些指南。

目标是提供一组一致的命名产生对有直接意义的名称的约定开发人员。

Answer 3

要使AudioVideoPlayback正常工作，您需要添加AudioVideoPlay引用，使用"引用">"添加引用">《浏览》>"C:\>Windows>Microsoft.Net>DirectX For managed code">1.0.2902.0>Microsoft.DirectX.AudioVideoPlayback.dll