我想像那个人那样播放视频[链接]。
我正在开发 C# Windows 窗体应用程序（不是 NXA）。但我不知道怎么做。我尝试使用Microsoft.DirectX.AudioVideoPlayback但没有运气。
这是我到目前为止所尝试的：
OpenFileDialog rihanna = new OpenFileDialog();
if(rihanna.ShowDialog() == DialogResult.OK)
{
video = new Video(rihanna.FileName);
video.Owner = panel1;
video.Stop();
}
现在我能做什么？我尝试使用视频课程，但正如我所说，它不起作用。我可以编译，但是当我运行程序时，我看不到表单窗口。
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();
}
}
}
Okey 命名空间很明确：
using Microsoft.DirectX.AudioVideoPlayback;
表单中的一些全局变量：
Video vdo;
public string mode="play";
public string PlayingPosition, Duration;
现在在您的 Button 或其他要打开的内容中：
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);
在其他一些按钮代码中开始/暂停：
if (vdo.Playing)
{
vdo.Pause();
btnPlay.Text= "Play";
}
else
{
vdo.Play();
btnPlay.Text= "Pause";
}
顺便说一句： 不要在你的代码中以 Girls命名变量/成员或其他东西......
如果您不确定如何命名，这里有一些指南。
目标是提供一组一致的命名约定，从而产生对开发人员立即有意义的名称。
要使 AudioVideoPlayback 正常工作，您需要添加 AudioVideoPlayback 参考，参考 > 添加参考 > 浏览 > C: > Windows > Microsoft.Net > DirectX for managed code > 1.0.2902.0 > Microsoft.DirectX.AudioVideoPlayback.dll