frmPreview.cs

   1 using System;\r
   2 using System.Windows.Forms;\r
   3 using System.Threading;\r
   4 using System.Diagnostics;\r
   5 using System.Runtime.InteropServices;\r
   6 using System.IO;\r
   7 using Handbrake.EncodeQueue;\r
   8 using Handbrake.Functions;\r
   9 using QTOControlLib;\r
  10 using QTOLibrary;\r
  11 \r
  12 namespace Handbrake\r
  13 {\r
  14     public partial class frmPreview : Form\r
  15     {\r
  16 \r
  17         QueryGenerator hb_common_func = new QueryGenerator();\r
  18         EncodeAndQueueHandler process = new EncodeAndQueueHandler();\r
  19         private delegate void UpdateUIHandler();\r
  20         String currently_playing = "";\r
  21         readonly frmMain mainWindow;\r
  22         private Thread player;\r
  23         private Boolean noQT;\r
  24 \r
  25         public frmPreview(frmMain mw)\r
  26         {\r
  27             try\r
  28             {\r
  29                 InitializeComponent();\r
  30             }\r
  31             catch (Exception)\r
  32             {\r
  33                 noQT = true;\r
  34             }\r
  35             this.mainWindow = mw;\r
  36             cb_preview.SelectedIndex = 0;\r
  37             cb_duration.SelectedIndex = 1;\r
  38 \r
  39             cb_preview.Items.Clear();\r
  40             for (int i = 1; i <= Properties.Settings.Default.previewScanCount; i++)\r
  41                 cb_preview.Items.Add(i.ToString());\r
  42             cb_preview.SelectedIndex = 0;\r
  43         }\r
  44 \r
  45         #region Encode Sample\r
  46         private void btn_playVLC_Click(object sender, EventArgs e)\r
  47         {\r
  48             lbl_status.Visible = true;\r
  49             try\r
  50             {\r
  51                 if (!noQT)\r
  52                     QTControl.URL = "";\r
  53 \r
  54                 if (File.Exists(currently_playing))\r
  55                     File.Delete(currently_playing);\r
  56             }\r
  57             catch (Exception)\r
  58             {\r
  59                 MessageBox.Show(this, "Unable to delete previous preview file. You may need to restart the application.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);\r
  60             }\r
  61 \r
  62             btn_playQT.Enabled = false;\r
  63             btn_playVLC.Enabled = false;\r
  64             lbl_status.Text = "Encoding Sample for (VLC) ...";\r
  65             int duration;\r
  66             int.TryParse(cb_duration.Text, out duration);\r
  67             String query = hb_common_func.GenerateCLIQuery(mainWindow, duration, cb_preview.Text);\r
  68             ThreadPool.QueueUserWorkItem(procMonitor, query);\r
  69         }\r
  70         private void btn_playQT_Click(object sender, EventArgs e)\r
  71         {\r
  72             if (noQT)\r
  73             {\r
  74                 MessageBox.Show(this, "It would appear QuickTime 7 is not installed or not accessible. Please (re)install QuickTime.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
  75                 return;\r
  76             }\r
  77             if (mainWindow.text_destination.Text.Contains(".mkv"))\r
  78             {\r
  79                 MessageBox.Show(this,\r
  80                                 "The QuickTime Control does not support MKV files, It is recommended you use VLC option instead.",\r
  81                                 "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
  82             }\r
  83             else\r
  84             {\r
  85                 lbl_status.Visible = true;\r
  86                 try\r
  87                 {\r
  88                     QTControl.URL = "";\r
  89                     if (File.Exists(currently_playing))\r
  90                         File.Delete(currently_playing);\r
  91                 }\r
  92                 catch (Exception)\r
  93                 {\r
  94                     MessageBox.Show(this, "Unable to delete previous preview file. You may need to restart the application.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);\r
  95                 }\r
  96 \r
  97                 btn_playQT.Enabled = false;\r
  98                 btn_playVLC.Enabled = false;\r
  99                 lbl_status.Text = "Encoding Sample for (QT) ...";\r
 100                 int duration;\r
 101                 int.TryParse(cb_duration.Text, out duration);\r
 102                 String query = hb_common_func.GenerateCLIQuery(mainWindow, duration, cb_preview.Text);\r
 103 \r
 104                 ThreadPool.QueueUserWorkItem(procMonitor, query);\r
 105             }\r
 106         }\r
 107         private void procMonitor(object state)\r
 108         {\r
 109             // Make sure we are not already encoding and if we are then display an error.\r
 110             if (process.hbProcess != null)\r
 111                 MessageBox.Show(this, "Handbrake is already encoding a video!", "Status", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
 112             else\r
 113             {\r
 114                 process.RunCli((string)state);\r
 115                 if (process.hbProcess != null)\r
 116                 {\r
 117                     process.hbProcess.WaitForExit();\r
 118                     process.hbProcess = null;\r
 119                 }\r
 120                 encodeCompleted();\r
 121             }\r
 122         }\r
 123         private void encodeCompleted()\r
 124         {\r
 125             try\r
 126             {\r
 127                 if (InvokeRequired)\r
 128                 {\r
 129                     BeginInvoke(new UpdateUIHandler(encodeCompleted));\r
 130                     return;\r
 131                 }\r
 132                 if (!noQT)\r
 133                     btn_playQT.Enabled = true;\r
 134                 btn_playVLC.Enabled = true;\r
 135 \r
 136                 // Decide which player to use.\r
 137                 String playerSelection = lbl_status.Text.Contains("QT") ? "QT" : "VLC";\r
 138 \r
 139                 lbl_status.Text = "Loading Clip ...";\r
 140 \r
 141                 // Get the sample filename\r
 142                 if (mainWindow.text_destination.Text != "")\r
 143                     currently_playing = mainWindow.text_destination.Text.Replace(".mp4", "_sample.mp4").Replace(".m4v", "_sample.m4v").Replace(".mkv", "_sample.mkv"); ;\r
 144 \r
 145                 // Play back in QT or VLC\r
 146                 if (playerSelection == "QT")\r
 147                     play();\r
 148                 else\r
 149                     playVLC();\r
 150 \r
 151                 lbl_status.Text = "";\r
 152             }\r
 153             catch (Exception exc)\r
 154             {\r
 155                 MessageBox.Show(this, "frmPreview.cs encodeCompleted " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);\r
 156             }\r
 157         }\r
 158         #endregion\r
 159 \r
 160         #region Playback\r
 161 \r
 162         /// <summary>\r
 163         /// Play the video back in the QuickTime control\r
 164         /// </summary>\r
 165         private void play()\r
 166         {\r
 167             player = new Thread(OpenMovie) { IsBackground = true };\r
 168             player.Start();\r
 169             lbl_status.Visible = false;\r
 170         }\r
 171 \r
 172         /// <summary>\r
 173         /// Play the video back in an external VLC player\r
 174         /// </summary>\r
 175         private void playVLC()\r
 176         {\r
 177             // Launch VLC and play video.\r
 178             if (currently_playing != "")\r
 179             {\r
 180                 if (File.Exists(currently_playing))\r
 181                 {\r
 182                     // Attempt to find VLC if it doesn't exist in the default set location.\r
 183                     if (!File.Exists(Properties.Settings.Default.VLC_Path))\r
 184                     {\r
 185                         if (File.Exists("C:\\Program Files (x86)\\VideoLAN\\VLC\\vlc.exe"))\r
 186                         {\r
 187                             Properties.Settings.Default.VLC_Path = "C:\\Program Files (x86)\\VideoLAN\\VLC\\vlc.exe";\r
 188                             Properties.Settings.Default.Save(); // Save this new path if it does\r
 189                         }\r
 190                         else\r
 191                         {\r
 192                             MessageBox.Show(this,\r
 193                                             "Unable to detect VLC Player. \nPlease make sure VLC is installed and the directory specified in HandBrake's options is correct. (See: \"Tools Menu > Options > Picture Tab\") ",\r
 194                                             "VLC", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
 195                         }\r
 196                     }\r
 197 \r
 198                     if (File.Exists(Properties.Settings.Default.VLC_Path))\r
 199                     {\r
 200                         String args = "\"" + currently_playing + "\"";\r
 201                         ProcessStartInfo vlc = new ProcessStartInfo(Properties.Settings.Default.VLC_Path, args);\r
 202                         Process.Start(vlc);\r
 203                         lbl_status.Text = "VLC will now launch.";\r
 204                     }\r
 205                     \r
 206                 }\r
 207                 else\r
 208                     MessageBox.Show(this, "Unable to find the preview file. Either the file was deleted or the encode failed. Check the activity log for details.", "VLC", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
 209             }\r
 210             lbl_status.Visible = false;\r
 211         }\r
 212 \r
 213         /// <summary>\r
 214         /// QT control - Open the file\r
 215         /// </summary>\r
 216         [STAThread]\r
 217         private void OpenMovie()\r
 218         {\r
 219             try\r
 220             {\r
 221                 if (InvokeRequired)\r
 222                 {\r
 223                     BeginInvoke(new UpdateUIHandler(OpenMovie));\r
 224                     return;\r
 225                 }\r
 226                 QTControl.URL = currently_playing;\r
 227                 QTControl.SetSizing(QTSizingModeEnum.qtControlFitsMovie, true);\r
 228                 QTControl.URL = currently_playing;\r
 229                 QTControl.Show();\r
 230 \r
 231                 this.ClientSize = QTControl.Size;\r
 232                 this.Height += 25;\r
 233             }\r
 234             catch (COMException ex)\r
 235             {\r
 236                 QTUtils qtu = new QTUtils();\r
 237                 MessageBox.Show(this, "Unable to open movie:\n\nError Code: " + ex.ErrorCode.ToString("X") + "\nQT Error code : " + qtu.QTErrorFromErrorCode(ex.ErrorCode), "QT", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
 238             }\r
 239             catch (Exception ex)\r
 240             {\r
 241                 MessageBox.Show(this, "Unable to open movie:\n\n" + ex, "QT", MessageBoxButtons.OK, MessageBoxIcon.Warning);\r
 242             }\r
 243         }\r
 244         #endregion\r
 245     }\r
 246 }\r