阿里云php网站建设教程,wordpress 内部错误,网站建设集团,手机网站制作的公司先说下优缺点 优点#xff1a;与电脑无关#xff0c;能播放主流编码格式视频。 缺点#xff1a;只能播放本地视频#xff0c;网络视频播放不了。 下面是具体操作和代码 1. 安装Vlc.DotNet.Forms 和 VideoLAN.LibVLC.Windows Vlc.DotNet.Forms 是播放库#xff0c;Vid…先说下优缺点 优点与电脑无关能播放主流编码格式视频。 缺点只能播放本地视频网络视频播放不了。 下面是具体操作和代码 1. 安装Vlc.DotNet.Forms 和 VideoLAN.LibVLC.Windows Vlc.DotNet.Forms 是播放库VideoLAN.LibVLC.Windows用于播放显示 2. 界面布局 用到 vlcControl 视频播放组件 滑块 TrackBar 自定义控件用于显示视频播放进度和音量button视频播放和快进 我播放是网上的视频 所以调用线程先将视频下载到本地下载完成后在播放。 lTrackBar_vedio 和 lTrackBar_voice 是我自定义的滑块可以直接用系统默认的滑块控件。 public partial class Form1 : Form{private string url http://www.xxxxx.com/video/20240111155329.mp4;private string vedioPath AppDomain.CurrentDomain.BaseDirectory Vedio\123.mp4;private long vedioLength 0;private string vedioTime;public Form1(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){if (!Directory.Exists(AppDomain.CurrentDomain.BaseDirectory \Vedio))Directory.CreateDirectory(AppDomain.CurrentDomain.BaseDirectory \Vedio);if (!File.Exists(vedioPath)){VedioDownloader urlDownloader new VedioDownloader(vedioPath, url);new Thread(new ThreadStart(urlDownloader.DownloadFileAsync)).Start(); ;}else{InitVedio(); }}private void InitVedio(){vlcControl1.Play(new FileInfo(vedioPath));button_play.BackgroundImage Properties.Resources.audioPlay;vlcControl1.Audio.Volume this.lTrackBar_voice.L_Value;lTrackBar_vedio.L_Maximum this.lTrackBar_vedio.Width;lTrackBar_vedio.L_Minimum 0;}//加载播放需要的库private void vlcControl1_VlcLibDirectoryNeeded(object sender, Vlc.DotNet.Forms.VlcLibDirectoryNeededEventArgs e){var currentAssembly Assembly.GetEntryAssembly();var currentDirectory new FileInfo(currentAssembly.Location).DirectoryName;if (currentDirectory ! null){if (IntPtr.Size 4){e.VlcLibDirectory new DirectoryInfo(Path.GetFullPath(.\libvlc\win-x86));}else{e.VlcLibDirectory new DirectoryInfo(Path.GetFullPath(.\libvlc\win-x64));}}if (!e.VlcLibDirectory.Exists){var folderBrowserDialog new System.Windows.Forms.FolderBrowserDialog();folderBrowserDialog.Description Select Vlc libraries folder.;folderBrowserDialog.RootFolder Environment.SpecialFolder.Desktop;folderBrowserDialog.ShowNewFolderButton true;if (folderBrowserDialog.ShowDialog() DialogResult.OK){e.VlcLibDirectory new DirectoryInfo(folderBrowserDialog.SelectedPath);}}}private void vlcControl1_TimeChanged(object sender, Vlc.DotNet.Core.VlcMediaPlayerTimeChangedEventArgs e){vedioLength vlcControl1.VlcMediaPlayer.Length;string allTime ConvertTimeStampToDateTime(vedioLength);string current ConvertTimeStampToDateTime(vlcControl1.VlcMediaPlayer.Time);this.lTrackBar_vedio.L_Value Convert.ToInt32(1.0f * (lTrackBar_vedio.L_Maximum - lTrackBar_vedio.L_Minimum) * vlcControl1.VlcMediaPlayer.Time / vedioLength);vedioTime current / allTime;SetVedioTime(vedioTime);}/// summary/// 使用委托显示视频时间/// /summary/// param nametext/paramdelegate void SetTextCallBack(string text);private void SetVedioTime(string vedioTime){if (this.label_vedioTime.InvokeRequired){SetTextCallBack stcb new SetTextCallBack(SetVedioTime);this.BeginInvoke(stcb, new object[] { vedioTime });}else{this.label_vedioTime.Text vedioTime;}}private string ConvertTimeStampToDateTime(long vedioLength){DateTime dt new DateTime(vedioLength * 10000);return dt.Hour.ToString().PadLeft(2, 0) : dt.Minute.ToString().PadLeft(2, 0) : dt.Second.ToString().PadLeft(2, 0);}private void button_play_Click(object sender, EventArgs e){if (vlcControl1.State Vlc.DotNet.Core.Interops.Signatures.MediaStates.Playing){vlcControl1.Pause();button_play.BackgroundImage Properties.Resources.audioPause2;}else{if (vlcControl1.State Vlc.DotNet.Core.Interops.Signatures.MediaStates.Ended){InitVedio();}else{button_play.BackgroundImage Properties.Resources.audioPlay;vlcControl1.Play();}}}private void button_voice_Click(object sender, EventArgs e){if (lTrackBar_voice.L_Value ! 0){lTrackBar_voice.L_Value 0;button_voice.BackgroundImage Properties.Resources.voice_close;}else{lTrackBar_voice.L_Value 80;button_voice.BackgroundImage Properties.Resources.voice_open;}}private void lTrackBar_voice_LValueChanged(object sender, LEventArgs e){vlcControl1.Audio.Volume lTrackBar_voice.L_Value;}private void vlcControl1_Stopped(object sender, Vlc.DotNet.Core.VlcMediaPlayerStoppedEventArgs e){button_play.BackgroundImage Properties.Resources.audioPause2;}private void lTrackBar_vedio_MouseMove(object sender, MouseEventArgs e){PlayInNewLocation(sender,e);}private void lTrackBar_vedio_MouseDown(object sender, MouseEventArgs e){PlayInNewLocation(sender,e);}private void PlayInNewLocation(object sender, MouseEventArgs e){if (e.Button MouseButtons.Left){if (vlcControl1.State Vlc.DotNet.Core.Interops.Signatures.MediaStates.Ended){InitVedio();}vlcControl1.VlcMediaPlayer.Time this.lTrackBar_vedio.L_Value * vedioLength / (lTrackBar_vedio.L_Maximum - lTrackBar_vedio.L_Minimum);}}private void button1_MouseDown(object sender, MouseEventArgs e){if (e.Button MouseButtons.Left)vlcControl1.Rate 2.5f;}private void button1_MouseUp(object sender, MouseEventArgs e){vlcControl1.Rate 1;}private void Form1_FormClosed(object sender, FormClosedEventArgs e){// vlcControl在stop的过程中可能会产生子窗口消息然而子窗口消息是在主线程UI线程中处理的而stop()方法也是在主线程中调用的这就造成了竞争性死锁。所以先释放掉主窗体在释放vlcControlthis.Dispose();if (vlcControl1.State ! Vlc.DotNet.Core.Interops.Signatures.MediaStates.Stopped)vlcControl1.Stop();vlcControl1.Dispose();}}