win/C#/Controls/AudioPanel.cs

   1 /*  AudioPanel.cs $\r
   2     This file is part of the HandBrake source code.\r
   3     Homepage: <http://handbrake.fr>.\r
   4     It may be used under the terms of the GNU General Public License. */\r
   5 \r
   6 namespace Handbrake.Controls\r
   7 {\r
   8     using System;\r
   9     using System.Collections;\r
  10     using System.Linq;\r
  11     using System.Windows.Forms;\r
  12     using Functions;\r
  13     using Parsing;\r
  14     using Presets;\r
  15     using AudioTrack = Model.AudioTrack;\r
  16 \r
  17     /// <summary>\r
  18     /// The AudioPanel Control\r
  19     /// </summary>\r
  20     public partial class AudioPanel : UserControl\r
  21     {\r
  22         /// <summary>\r
  23         /// Initializes a new instance of the <see cref="AudioPanel"/> class. \r
  24         /// Create a new instance of the Audio Panel\r
  25         /// </summary>\r
  26         public AudioPanel()\r
  27         {\r
  28             InitializeComponent();\r
  29             drp_audioMix.SelectedItem = "Dolby Pro Logic II";\r
  30             drp_audioSample.SelectedIndex = 1;\r
  31         }\r
  32 \r
  33         /// <summary>\r
  34         /// The audio list has changed\r
  35         /// </summary>\r
  36         public event EventHandler AudioListChanged;\r
  37 \r
  38         /// <summary>\r
  39         /// Get the audio panel\r
  40         /// </summary>\r
  41         /// <returns>A listview containing the audio tracks</returns>\r
  42         public DataGridView GetAudioPanel()\r
  43         {\r
  44             return audioList;\r
  45         }\r
  46 \r
  47         /// <summary>\r
  48         /// Set the File Container. This funciton is used to limit the available options for each file container.\r
  49         /// </summary>\r
  50         /// <param name="path">\r
  51         /// the file path\r
  52         /// </param>\r
  53         public void SetContainer(string path)\r
  54         {\r
  55             string oldval = drp_audioEncoder.Text;\r
  56             if ((path.Contains("MP4")) || (path.Contains("M4V")))\r
  57             {\r
  58                 drp_audioEncoder.Items.Clear();\r
  59                 drp_audioEncoder.Items.Add("AAC (faac)");\r
  60                 drp_audioEncoder.Items.Add("MP3 (lame)");\r
  61                 drp_audioEncoder.Items.Add("AC3 Passthru");\r
  62                 if ((oldval != "AAC (faac)") && (oldval != "AC3 Passthru"))\r
  63                     drp_audioEncoder.SelectedIndex = 0;\r
  64                 else\r
  65                     drp_audioEncoder.SelectedItem = oldval;\r
  66             }\r
  67             else if (path.Contains("MKV"))\r
  68             {\r
  69                 drp_audioEncoder.Items.Clear();\r
  70                 drp_audioEncoder.Items.Add("AAC (faac)");\r
  71                 drp_audioEncoder.Items.Add("MP3 (lame)");\r
  72                 drp_audioEncoder.Items.Add("AC3 Passthru");\r
  73                 drp_audioEncoder.Items.Add("DTS Passthru");\r
  74                 drp_audioEncoder.Items.Add("Vorbis (vorbis)");\r
  75                 drp_audioEncoder.SelectedItem = oldval;\r
  76 \r
  77                 if (drp_audioEncoder.Text == string.Empty)\r
  78                     drp_audioEncoder.SelectedIndex = 0;\r
  79             }\r
  80 \r
  81             // Make sure the table is updated with new audio codecs\r
  82             foreach (DataGridViewRow row in audioList.Rows)\r
  83             {\r
  84                 if (!drp_audioEncoder.Items.Contains(row.Cells[2].Value))\r
  85                     row.Cells[2].Value = drp_audioEncoder.Items[0].ToString();\r
  86             }\r
  87         }\r
  88 \r
  89         /// <summary>\r
  90         /// Checks if the settings used required the .m4v (rather than .mp4) extension\r
  91         /// </summary>\r
  92         /// <returns>True if m4v is required</returns>\r
  93         public bool RequiresM4V()\r
  94         {\r
  95             return this.audioList.Rows.Cast<DataGridViewRow>().Any(row => row.Cells[2].Value.ToString().Contains("AC3"));\r
  96         }\r
  97 \r
  98         /// <summary>\r
  99         /// Load an arraylist of AudioTrack items into the list.\r
 100         /// </summary>\r
 101         /// <param name="audioTracks">List of audio tracks</param>\r
 102         public void LoadTracks(ArrayList audioTracks)\r
 103         {\r
 104             ClearAudioList();\r
 105 \r
 106             if (audioTracks == null)\r
 107                 return;\r
 108 \r
 109             foreach (AudioTrack track in audioTracks)\r
 110             {\r
 111                 DataGridViewRow newTrack = new DataGridViewRow();\r
 112                 newTrack.CreateCells(audioList);\r
 113                 newTrack.Cells[0].Value = GetNewID().ToString();\r
 114                 newTrack.Cells[1].Value = "Automatic";\r
 115                 newTrack.Cells[2].Value = track.Encoder;\r
 116                 newTrack.Cells[3].Value = track.MixDown;\r
 117                 newTrack.Cells[4].Value = track.SampleRate;\r
 118                 newTrack.Cells[5].Value = track.Encoder.Contains("AC3") ? "Auto" : track.Bitrate;\r
 119                 newTrack.Cells[6].Value = track.DRC;\r
 120                 AddTrackForPreset(newTrack);\r
 121             }\r
 122         }\r
 123 \r
 124         /// <summary>\r
 125         /// Set the Track list dropdown from the parsed title captured during the scan\r
 126         /// </summary>\r
 127         /// <param name="selectedTitle">The selected title</param>\r
 128         /// <param name="preset">A preset</param>\r
 129         public void SetTrackList(Title selectedTitle, Preset preset)\r
 130         {\r
 131             if (selectedTitle.AudioTracks.Count == 0)\r
 132             {\r
 133                 audioList.Rows.Clear();\r
 134                 drp_audioTrack.Items.Clear();\r
 135                 drp_audioTrack.Items.Add("None Found");\r
 136                 drp_audioTrack.SelectedIndex = 0;\r
 137                 return;\r
 138             }\r
 139 \r
 140             // The Source Information for the title will have changed, so set all the tracks to Automatic.\r
 141             foreach (DataGridViewRow row in this.audioList.Rows)\r
 142             {\r
 143                 row.Cells[1].Value = "Automatic";\r
 144             }\r
 145 \r
 146             // Setup the Audio track source dropdown with the new audio tracks.\r
 147             drp_audioTrack.Items.Clear();\r
 148             drp_audioTrack.Items.Add("Automatic");\r
 149             drp_audioTrack.Items.AddRange(selectedTitle.AudioTracks.ToArray());\r
 150 \r
 151             // Re-add any audio tracks that the preset has.\r
 152             if (audioList.Rows.Count == 0 && preset != null)\r
 153             {\r
 154                 QueryParser parsed = QueryParser.Parse(preset.Query);\r
 155                 foreach (AudioTrack audioTrack in parsed.AudioInformation)\r
 156                 {\r
 157                     DataGridViewRow newTrack = new DataGridViewRow();\r
 158                     newTrack.CreateCells(audioList);\r
 159                     newTrack.Cells[0].Value = GetNewID().ToString();\r
 160                     newTrack.Cells[1].Value = (audioTrack.Track);\r
 161                     newTrack.Cells[2].Value = (audioTrack.Encoder);\r
 162                     newTrack.Cells[3].Value = (audioTrack.MixDown);\r
 163                     newTrack.Cells[4].Value = (audioTrack.SampleRate);\r
 164                     newTrack.Cells[5].Value = (audioTrack.Bitrate);\r
 165                     newTrack.Cells[6].Value = (audioTrack.DRC);\r
 166                     audioList.Rows.Add(newTrack);\r
 167                 }\r
 168             }\r
 169 \r
 170             // Handle Native Language and "Dub Foreign language audio" and "Use Foreign language audio and Subtitles" Options\r
 171             if (Properties.Settings.Default.NativeLanguage == "Any")\r
 172                 drp_audioTrack.SelectedIndex = drp_audioTrack.Items.Count >= 2 ? 1 : 0;\r
 173             else\r
 174             {\r
 175                 if (Properties.Settings.Default.DubAudio) // "Dub Foreign language audio" \r
 176                 {\r
 177                     int i = 0;\r
 178                     foreach (object item in drp_audioTrack.Items)\r
 179                     {\r
 180                         if (item.ToString().Contains(Properties.Settings.Default.NativeLanguage))\r
 181                         {\r
 182                             drp_audioTrack.SelectedIndex = i;\r
 183                             break;\r
 184                         }\r
 185 \r
 186                         i++;\r
 187                     }\r
 188 \r
 189                     if (drp_audioTrack.SelectedItem != null)\r
 190                         foreach (DataGridViewRow item in audioList.Rows)\r
 191                             item.Cells[1].Value = drp_audioTrack.SelectedItem.ToString();\r
 192                     else\r
 193                     {\r
 194                         drp_audioTrack.SelectedIndex = 0;\r
 195                         if (drp_audioTrack.SelectedItem != null)\r
 196                             foreach (DataGridViewRow item in audioList.Rows)\r
 197                                 item.Cells[1].Value = drp_audioTrack.SelectedItem.ToString();\r
 198                     }\r
 199                 }\r
 200                 else\r
 201                     drp_audioTrack.SelectedIndex = drp_audioTrack.Items.Count >= 3 ? 2 : 0;\r
 202                 // "Use Foreign language audio and Subtitles"\r
 203             }\r
 204         }\r
 205 \r
 206         // Control and ListView\r
 207 \r
 208         /// <summary>\r
 209         /// one of the controls has changed. Event handler\r
 210         /// </summary>\r
 211         /// <param name="sender">\r
 212         /// The sender.\r
 213         /// </param>\r
 214         /// <param name="e">\r
 215         /// The e.\r
 216         /// </param>\r
 217         private void controlChanged(object sender, EventArgs e)\r
 218         {\r
 219             Control ctl = (Control)sender;\r
 220 \r
 221             switch (ctl.Name)\r
 222             {\r
 223                 case "drp_audioTrack":\r
 224                     if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 225                         audioList.SelectedRows[0].Cells[1].Value = drp_audioTrack.Text;\r
 226                     break;\r
 227                 case "drp_audioEncoder":\r
 228                     SetMixDown();\r
 229                     SetBitrate();\r
 230 \r
 231                     // Configure the widgets with values\r
 232                     if (drp_audioEncoder.Text.Contains("AC3") || drp_audioEncoder.Text.Contains("DTS"))\r
 233                     {\r
 234                         drp_audioMix.Enabled =\r
 235                             drp_audioBitrate.Enabled = drp_audioSample.Enabled = tb_drc.Enabled = false;\r
 236                         lbl_bitrate.Enabled =\r
 237                             lbl_drc.Enabled =\r
 238                             lbl_drcHeader.Enabled = lbl_mixdown.Enabled = lbl_sampleRate.Enabled = false;\r
 239                     }\r
 240                     else\r
 241                     {\r
 242                         drp_audioMix.Enabled =\r
 243                             drp_audioBitrate.Enabled = drp_audioSample.Enabled = tb_drc.Enabled = true;\r
 244                         lbl_bitrate.Enabled =\r
 245                             lbl_drc.Enabled =\r
 246                             lbl_drcHeader.Enabled = lbl_mixdown.Enabled = lbl_sampleRate.Enabled = true;\r
 247                     }\r
 248 \r
 249                     // Update an item in the Audio list if required.\r
 250                     if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 251                         audioList.SelectedRows[0].Cells[2].Value = drp_audioEncoder.Text;\r
 252                     break;\r
 253                 case "drp_audioMix":\r
 254                     SetBitrate();\r
 255 \r
 256                     if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 257                         audioList.SelectedRows[0].Cells[3].Value = drp_audioMix.Text;\r
 258                     break;\r
 259                 case "drp_audioSample":\r
 260                     if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 261                         audioList.SelectedRows[0].Cells[4].Value = drp_audioSample.Text;\r
 262                     break;\r
 263                 case "drp_audioBitrate":\r
 264                     // Update an item in the Audio list if required.\r
 265                     if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 266                         audioList.SelectedRows[0].Cells[5].Value = drp_audioBitrate.Text;\r
 267                     break;\r
 268                 case "tb_drc":\r
 269                     double value;\r
 270                     if (tb_drc.Value == 0) value = 0;\r
 271                     else\r
 272                         value = ((tb_drc.Value - 1) / 10.0) + 1;\r
 273 \r
 274                     lbl_drc.Text = value.ToString();\r
 275 \r
 276                     // Update an item in the Audio list if required.\r
 277                     if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 278                     {\r
 279                         audioList.SelectedRows[0].Cells[6].Value = value.ToString();\r
 280                         audioList.Select();\r
 281                     }\r
 282                     break;\r
 283             }\r
 284 \r
 285             audioList.Select();\r
 286         }\r
 287 \r
 288         /// <summary>\r
 289         /// The Audio List selected index changed event handler\r
 290         /// </summary>\r
 291         /// <param name="sender">\r
 292         /// The sender.\r
 293         /// </param>\r
 294         /// <param name="e">\r
 295         /// The e.\r
 296         /// </param>\r
 297         private void audioList_SelectionChanged(object sender, EventArgs e)\r
 298         {\r
 299             // Set the dropdown controls based on the selected item in the Audio List.\r
 300             if (audioList.Rows.Count != 0 && audioList.SelectedRows.Count != 0)\r
 301             {\r
 302                 drp_audioTrack.SelectedItem = audioList.SelectedRows[0].Cells[1].Value;\r
 303                 drp_audioEncoder.SelectedItem = audioList.SelectedRows[0].Cells[2].Value;\r
 304                 drp_audioMix.SelectedItem = audioList.SelectedRows[0].Cells[3].Value;\r
 305                 drp_audioSample.SelectedItem = audioList.SelectedRows[0].Cells[4].Value;\r
 306                 drp_audioBitrate.SelectedItem = audioList.SelectedRows[0].Cells[5].Value;\r
 307                 double drcValue;\r
 308                 int drcCalculated;\r
 309                 double.TryParse(audioList.SelectedRows[0].Cells[6].Value.ToString(), out drcValue);\r
 310                 if (drcValue != 0)\r
 311                     drcValue = ((drcValue * 10) + 1) - 10;\r
 312                 int.TryParse(drcValue.ToString(), out drcCalculated);\r
 313                 tb_drc.Value = drcCalculated;\r
 314                 lbl_drc.Text = audioList.SelectedRows[0].Cells[6].Value.ToString();\r
 315 \r
 316                 AudioTrackGroup.Text = "Selected Track: " + audioList.SelectedRows[0].Cells[0].Value;\r
 317             }\r
 318             else\r
 319                 AudioTrackGroup.Text = "Selected Track: None (Click \"Add Track\" to add)";\r
 320         }\r
 321 \r
 322         // Track Controls\r
 323 \r
 324         /// <summary>\r
 325         /// The Add Audio Track button event handler\r
 326         /// </summary>\r
 327         /// <param name="sender">\r
 328         /// The sender.\r
 329         /// </param>\r
 330         /// <param name="e">\r
 331         /// The e.\r
 332         /// </param>\r
 333         private void btn_addAudioTrack_Click(object sender, EventArgs e)\r
 334         {\r
 335             if (drp_audioTrack.Text == "None Found")\r
 336             {\r
 337                 MessageBox.Show(\r
 338                     "Your source appears to have no audio tracks that HandBrake supports.",\r
 339                     "Warning",\r
 340                     MessageBoxButtons.OK,\r
 341                     MessageBoxIcon.Warning);\r
 342                 return;\r
 343             }\r
 344 \r
 345             double value = 0;\r
 346             if (tb_drc.Value != 0)\r
 347                 value = ((tb_drc.Value - 1) / 10.0) + 1;\r
 348 \r
 349             // Create a new row for the Audio list based on the currently selected items in the dropdown.\r
 350             DataGridViewRow newTrack = new DataGridViewRow();\r
 351             newTrack.CreateCells(audioList);\r
 352             newTrack.Cells[0].Value = GetNewID().ToString();\r
 353             newTrack.Cells[1].Value = drp_audioTrack.Text;\r
 354             newTrack.Cells[2].Value = drp_audioEncoder.Text;\r
 355             newTrack.Cells[3].Value = drp_audioMix.Text;\r
 356             newTrack.Cells[4].Value = drp_audioSample.Text;\r
 357             newTrack.Cells[5].Value = drp_audioBitrate.Text;\r
 358             newTrack.Cells[6].Value = value.ToString();\r
 359             audioList.Rows.Add(newTrack);\r
 360 \r
 361             // The Audio List has changed to raise the event.\r
 362             if (this.AudioListChanged != null)\r
 363                 this.AudioListChanged(this, new EventArgs());\r
 364 \r
 365             // Select the newly added track and select the control       \r
 366             audioList.ClearSelection();\r
 367             audioList.Rows[audioList.Rows.Count - 1].Selected = true;\r
 368             audioList.Select();\r
 369         }\r
 370 \r
 371         /// <summary>\r
 372         /// The Remove Track button event handler\r
 373         /// </summary>\r
 374         /// <param name="sender">\r
 375         /// The sender.\r
 376         /// </param>\r
 377         /// <param name="e">\r
 378         /// The e.\r
 379         /// </param>\r
 380         private void btn_RemoveAudioTrack_Click(object sender, EventArgs e)\r
 381         {\r
 382             RemoveTrack();\r
 383         }\r
 384 \r
 385         // Audio List Menu\r
 386 \r
 387         /// <summary>\r
 388         /// The Audio List Move Up menu item\r
 389         /// </summary>\r
 390         /// <param name="sender">\r
 391         /// The sender.\r
 392         /// </param>\r
 393         /// <param name="e">\r
 394         /// The e.\r
 395         /// </param>\r
 396         private void audioList_moveup_Click(object sender, EventArgs e)\r
 397         {\r
 398             MoveTrack(true);\r
 399         }\r
 400 \r
 401         /// <summary>\r
 402         /// The audio list move down menu item\r
 403         /// </summary>\r
 404         /// <param name="sender">\r
 405         /// The sender.\r
 406         /// </param>\r
 407         /// <param name="e">\r
 408         /// The e.\r
 409         /// </param>\r
 410         private void audioList_movedown_Click(object sender, EventArgs e)\r
 411         {\r
 412             MoveTrack(false);\r
 413         }\r
 414 \r
 415         /// <summary>\r
 416         /// The audio list remove menu item\r
 417         /// </summary>\r
 418         /// <param name="sender">\r
 419         /// The sender.\r
 420         /// </param>\r
 421         /// <param name="e">\r
 422         /// The e.\r
 423         /// </param>\r
 424         private void audioList_remove_Click(object sender, EventArgs e)\r
 425         {\r
 426             RemoveTrack();\r
 427         }\r
 428 \r
 429         // Private Functions\r
 430 \r
 431         /// <summary>\r
 432         /// Add track for preset\r
 433         /// </summary>\r
 434         /// <param name="item">\r
 435         /// The item.\r
 436         /// </param>\r
 437         private void AddTrackForPreset(DataGridViewRow item)\r
 438         {\r
 439             audioList.Rows.Add(item);\r
 440             if (this.AudioListChanged != null)\r
 441                 this.AudioListChanged(this, new EventArgs());\r
 442         }\r
 443 \r
 444         /// <summary>\r
 445         /// Clear the audio list\r
 446         /// </summary>\r
 447         private void ClearAudioList()\r
 448         {\r
 449             audioList.Rows.Clear();\r
 450             if (this.AudioListChanged != null)\r
 451                 this.AudioListChanged(this, new EventArgs());\r
 452         }\r
 453 \r
 454         /// <summary>\r
 455         /// Get a new ID for the next audio track\r
 456         /// </summary>\r
 457         /// <returns>\r
 458         /// an int\r
 459         /// </returns>\r
 460         private int GetNewID()\r
 461         {\r
 462             return audioList.Rows.Count + 1;\r
 463         }\r
 464 \r
 465         /// <summary>\r
 466         /// Remove an audio track from the list\r
 467         /// </summary>\r
 468         private void RemoveTrack()\r
 469         {\r
 470             // Remove the Item and reselect the control if the following conditions are met.\r
 471             if (audioList.SelectedRows.Count != 0)\r
 472             {\r
 473                 // The Audio List is about to change so raise the event.\r
 474                 if (this.AudioListChanged != null)\r
 475                     this.AudioListChanged(this, new EventArgs());\r
 476 \r
 477                 // Record the current selected index.\r
 478                 int currentPosition = audioList.SelectedRows[0].Index;\r
 479 \r
 480                 audioList.Rows.Remove(audioList.SelectedRows[0]);\r
 481 \r
 482                 // Now reslect the correct item and give focus to the audio list.\r
 483                 if (audioList.Rows.Count != 0)\r
 484                 {\r
 485                     audioList.ClearSelection();\r
 486                     if (currentPosition <= (audioList.Rows.Count - 1))\r
 487                         audioList.Rows[currentPosition].Selected = true;\r
 488                     else if (currentPosition > (audioList.Rows.Count - 1))\r
 489                         audioList.Rows[audioList.Rows.Count - 1].Selected = true;\r
 490 \r
 491                     audioList.Select();\r
 492                 }\r
 493                 // Regenerate the ID numers\r
 494                 ReGenerateListIDs();\r
 495             }\r
 496         }\r
 497 \r
 498         /// <summary>\r
 499         /// Move an audio track up or down the audio list\r
 500         /// </summary>\r
 501         /// <param name="up">\r
 502         /// The up.\r
 503         /// </param>\r
 504         private void MoveTrack(bool up)\r
 505         {\r
 506             if (audioList.SelectedRows.Count == 0) return;\r
 507 \r
 508             DataGridViewRow item = audioList.SelectedRows[0];\r
 509             int index = item.Index;\r
 510 \r
 511             if (up) index--;\r
 512             else index++;\r
 513     \r
 514             if (index < audioList.Rows.Count || (audioList.Rows.Count > index && index >= 0))\r
 515             {\r
 516                 audioList.Rows.Remove(item);\r
 517                 audioList.Rows.Insert(index, item);\r
 518                 audioList.ClearSelection();\r
 519                 item.Selected = true;\r
 520             }\r
 521         }\r
 522 \r
 523         /// <summary>\r
 524         /// Regenerate all the audio track id's on the audio list\r
 525         /// </summary>\r
 526         private void ReGenerateListIDs()\r
 527         {\r
 528             int i = 1;\r
 529             foreach (DataGridViewRow item in audioList.Rows)\r
 530             {\r
 531                 item.Cells[0].Value = i.ToString();\r
 532                 i++;\r
 533             }\r
 534         }\r
 535 \r
 536         /// <summary>\r
 537         /// Set the bitrate dropdown\r
 538         /// </summary>\r
 539         private void SetBitrate()\r
 540         {\r
 541             int max = 0;\r
 542             drp_audioBitrate.Items.Remove("Auto");\r
 543             drp_audioBitrate.Items.Remove("192");\r
 544             drp_audioBitrate.Items.Remove("224");\r
 545             drp_audioBitrate.Items.Remove("256");\r
 546             drp_audioBitrate.Items.Remove("320");\r
 547             drp_audioBitrate.Items.Remove("384");\r
 548             drp_audioBitrate.Items.Remove("448");\r
 549             drp_audioBitrate.Items.Remove("768");\r
 550 \r
 551             switch (drp_audioEncoder.Text)\r
 552             {\r
 553                 case "AAC (faac)":\r
 554                     max = drp_audioMix.Text.Contains("6 Channel") ? 768 : 320;\r
 555                     break;\r
 556                 case "MP3 (lame)":\r
 557                     max = 320;\r
 558                     break;\r
 559                 case "Vorbis (vorbis)":\r
 560                     max = 384;\r
 561                     break;\r
 562                 case "AC3 Passthru":\r
 563                     drp_audioBitrate.Items.Add("Auto");\r
 564                     drp_audioBitrate.SelectedItem = "Auto";\r
 565                     drp_audioSample.SelectedItem = "Auto";\r
 566                     break;\r
 567                 case "DTS Passthru":\r
 568                     drp_audioBitrate.Items.Add("Auto");\r
 569                     drp_audioBitrate.SelectedItem = "Auto";\r
 570                     drp_audioSample.SelectedItem = "Auto";\r
 571                     break;\r
 572             }\r
 573 \r
 574             if (max > 160)\r
 575             {\r
 576                 drp_audioBitrate.Items.Add("192");\r
 577                 drp_audioBitrate.Items.Add("224");\r
 578                 drp_audioBitrate.Items.Add("256");\r
 579                 drp_audioBitrate.Items.Add("320");\r
 580             }\r
 581 \r
 582             if (max > 320)\r
 583             {\r
 584                 drp_audioBitrate.Items.Add("384");\r
 585             }\r
 586 \r
 587             if (max == 768)\r
 588             {\r
 589                 drp_audioBitrate.Items.Add("448");\r
 590                 drp_audioBitrate.Items.Add("768");\r
 591             }\r
 592 \r
 593             if (drp_audioBitrate.SelectedItem == null)\r
 594                 drp_audioBitrate.SelectedIndex = drp_audioBitrate.Items.Count - 1;\r
 595         }\r
 596 \r
 597         /// <summary>\r
 598         /// Set the mixdown dropdown\r
 599         /// </summary>\r
 600         private void SetMixDown()\r
 601         {\r
 602             drp_audioMix.Items.Clear();\r
 603             drp_audioMix.Items.Add("Mono");\r
 604             drp_audioMix.Items.Add("Stereo");\r
 605             drp_audioMix.Items.Add("Dolby Surround");\r
 606             drp_audioMix.Items.Add("Dolby Pro Logic II");\r
 607             drp_audioMix.Items.Add("6 Channel Discrete");\r
 608             drp_audioMix.Items.Add("AC3 Passthru");\r
 609             drp_audioMix.Items.Add("DTS Passthru");\r
 610 \r
 611             drp_audioMix.SelectedItem = "Dolby Pro Logic II";\r
 612 \r
 613             switch (drp_audioEncoder.Text)\r
 614             {\r
 615                 case "AAC (faac)":\r
 616                     drp_audioMix.Items.Remove("AC3 Passthru");\r
 617                     drp_audioMix.Items.Remove("DTS Passthru");\r
 618                     break;\r
 619                 case "MP3 (lame)":\r
 620                     drp_audioMix.Items.Remove("6 Channel Discrete");\r
 621                     drp_audioMix.Items.Remove("AC3 Passthru");\r
 622                     drp_audioMix.Items.Remove("DTS Passthru");\r
 623                     break;\r
 624                 case "Vorbis (vorbis)":\r
 625                     drp_audioMix.Items.Remove("AC3 Passthru");\r
 626                     drp_audioMix.Items.Remove("DTS Passthru");\r
 627                     break;\r
 628                 case "AC3 Passthru":\r
 629                     drp_audioMix.SelectedItem = "AC3 Passthru";\r
 630                     break;\r
 631                 case "DTS Passthru":\r
 632                     drp_audioMix.SelectedItem = "DTS Passthru";\r
 633                     break;\r
 634             }\r
 635         }\r
 636     }\r
 637 }