C# MediaPlayer
作者:互联网
1 using System.Windows.Media; 2 using Newtonsoft.Json; 3 using System.ComponentModel; 4 5 namespace ConsoleApp378 6 { 7 class Program:INotifyPropertyChanged 8 { 9 static void Main(string[] args) 10 { 11 Program obj = new Program(); 12 obj.MediaPlayerDemo(); 13 Console.ReadLine(); 14 } 15 16 static MediaPlayer mp3Player = new MediaPlayer(); 17 void MediaPlayerDemo() 18 { 19 string mp3Path = Directory.GetCurrentDirectory() + @"\MediaResource\StarSky.mp3"; 20 mp3Player.Open(new Uri(mp3Path)); 21 mp3Player.MediaEnded += Mp3Player_MediaEnded; 22 Console.WriteLine(" Start:Y;Exit:Q;Amplify:A;Decrease:D;Pause:P;C:Acclerate;R:Replay from begining!"); 23 string line; 24 while ((line = Console.ReadLine()) != null) 25 { 26 ControlMediaPlayer(line[0]); 27 } 28 } 29 30 private bool isMP3PlayerCompleted = false; 31 32 public event PropertyChangedEventHandler PropertyChanged; 33 private void OnPropertyChanged(string propName) 34 { 35 if(PropertyChanged!=null) 36 { 37 PropertyChanged(this, new PropertyChangedEventArgs(propName)); 38 } 39 } 40 41 public bool ISMP3PlayerCompleted 42 { 43 get 44 { 45 return isMP3PlayerCompleted; 46 } 47 set 48 { 49 if(value!=isMP3PlayerCompleted) 50 { 51 isMP3PlayerCompleted = value; 52 OnPropertyChanged("ISMP3PlayerCompleted"); 53 } 54 55 if(isMP3PlayerCompleted) 56 { 57 MessageBox.Show("Finished!"); 58 } 59 } 60 } 61 private void Mp3Player_MediaEnded(object sender, EventArgs e) 62 { 63 ISMP3PlayerCompleted = true; 64 } 65 66 void ControlMediaPlayer(char c) 67 { 68 if (mp3Player != null && mp3Player.HasAudio) 69 { 70 string jsonContent = ""; 71 switch (c) 72 { 73 //Start 74 case 'Y': 75 mp3Player.Play(); 76 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 77 ShowMsg(jsonContent); 78 break; 79 80 //Exit 81 case 'Q': 82 mp3Player.Stop(); 83 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 84 ShowMsg(jsonContent); 85 break; 86 87 //Amplify 88 case 'A': 89 mp3Player.Volume = mp3Player.Volume + 0.1; 90 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 91 ShowMsg(jsonContent); 92 break; 93 94 //Decrease 95 case 'D': 96 mp3Player.Volume = mp3Player.Volume - 0.1; 97 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 98 ShowMsg(jsonContent); 99 break; 100 101 //Pause 102 case 'P': 103 mp3Player.Pause(); 104 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 105 ShowMsg(jsonContent); 106 break; 107 108 //Accelerate 109 case 'C': 110 mp3Player.SpeedRatio += 0.3; 111 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 112 ShowMsg(jsonContent); 113 break; 114 115 case 'L': 116 mp3Player.SpeedRatio -= 0.3; 117 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 118 ShowMsg(jsonContent); 119 break; 120 121 //Replay 122 case 'R': 123 mp3Player.Position = default(TimeSpan); 124 mp3Player.Play(); 125 jsonContent = JsonConvert.SerializeObject(mp3Player, Formatting.Indented); 126 ShowMsg(jsonContent); 127 break; 128 } 129 } 130 } 131 132 void ShowMsg(string msg) 133 { 134 Console.WriteLine(msg); 135 } 136 void ShowStatus(MediaPlayer mPlayer) 137 { 138 if(mPlayer!=null) 139 { 140 string msg = $"Position:{mp3Player.Position},SpeedRatio:{mp3Player.SpeedRatio},IsMuted:{mp3Player.IsMuted}," + 141 $"ScrubbingEnabled:{mp3Player.ScrubbingEnabled},Balance:{mp3Player.Balance},NaturalVideoWidth:{mp3Player.NaturalVideoWidth}" 142 + $"Source:{mp3Player.Source}"; 143 Console.WriteLine(msg); 144 } 145 } 146 }
标签:case,break,jsonContent,C#,mp3Player,MediaPlayer,ShowMsg,JsonConvert 来源: https://www.cnblogs.com/Fred1987/p/11784027.html