using System; using System.Windows.Forms; using System.Threading; using System.Diagnostics; using System.Runtime.InteropServices; using System.IO; using AxQTOControlLib; using Handbrake.Functions; using QTOControlLib; using QTOLibrary; namespace Handbrake { public partial class frmPreview : Form { QueryGenerator hb_common_func = new QueryGenerator(); Functions.Encode process = new Functions.Encode(); private delegate void UpdateUIHandler(); String currently_playing = ""; readonly frmMain mainWindow; private Process hbProc; private Thread player; private Boolean noQT; public frmPreview(frmMain mw) { try { InitializeComponent(); } catch (Exception exc) { MessageBox.Show(mw, "It would appear QuickTime 7 is not installed. QuickTime preview functionality will be disabled! \n\n Debug Info:\n" + exc, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning); btn_playQT.Enabled = false; noQT = true; } this.mainWindow = mw; cb_preview.SelectedIndex = 0; cb_duration.SelectedIndex = 1; } #region Encode Sample private void btn_playVLC_Click(object sender, EventArgs e) { lbl_status.Visible = true; try { QTControl.URL = ""; if (File.Exists(currently_playing)) File.Delete(currently_playing); } catch (Exception) { MessageBox.Show(this, "Unable to delete previous preview file. You may need to restart the application.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } btn_playQT.Enabled = false; btn_playVLC.Enabled = false; lbl_status.Text = "Encoding Sample for (VLC) ..."; String query = hb_common_func.GeneratePreviewQuery(mainWindow, cb_duration.Text, cb_preview.Text); ThreadPool.QueueUserWorkItem(procMonitor, query); } private void btn_playQT_Click(object sender, EventArgs e) { lbl_status.Visible = true; try { QTControl.URL = ""; if (File.Exists(currently_playing)) File.Delete(currently_playing); } catch (Exception) { MessageBox.Show(this, "Unable to delete previous preview file. You may need to restart the application.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } btn_playQT.Enabled = false; btn_playVLC.Enabled = false; lbl_status.Text = "Encoding Sample for (QT) ..."; String query = hb_common_func.GeneratePreviewQuery(mainWindow, cb_duration.Text, cb_preview.Text); ThreadPool.QueueUserWorkItem(procMonitor, query); } private void procMonitor(object state) { // Make sure we are not already encoding and if we are then display an error. if (hbProc != null) MessageBox.Show(this, "Handbrake is already encoding a video!", "Status", MessageBoxButtons.OK, MessageBoxIcon.Warning); else { hbProc = process.runCli(this, (string)state); hbProc.WaitForExit(); hbProc = null; encodeCompleted(); } } private void encodeCompleted() { try { if (InvokeRequired) { BeginInvoke(new UpdateUIHandler(encodeCompleted)); return; } if (!noQT) btn_playQT.Enabled = true; btn_playVLC.Enabled = true; // Decide which player to use. String playerSelection = lbl_status.Text.Contains("QT") ? "QT" : "VLC"; lbl_status.Text = "Loading Clip ..."; // Get the sample filename if (mainWindow.text_destination.Text != "") currently_playing = mainWindow.text_destination.Text.Replace(".mp4", "_sample.mp4").Replace(".m4v", "_sample.m4v").Replace(".mkv", "_sample.mkv");; // Play back in QT or VLC if (playerSelection == "QT") play(); else playVLC(); lbl_status.Text = ""; } catch (Exception exc) { MessageBox.Show(this, "frmPreview.cs encodeCompleted " + exc, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region Playback /// /// Play the video back in the QuickTime control /// private void play() { player = new Thread(OpenMovie) { IsBackground = true }; player.Start(); lbl_status.Visible = false; } /// /// Play the video back in an external VLC player /// private void playVLC() { // Launch VLC and play video. if (currently_playing != "") { if (File.Exists(currently_playing)) { if (File.Exists(Properties.Settings.Default.VLC_Path)) { String args = "\"" + currently_playing + "\""; ProcessStartInfo vlc = new ProcessStartInfo(Properties.Settings.Default.VLC_Path, args); Process.Start(vlc); lbl_status.Text = "VLC will now launch."; } else MessageBox.Show(this, "Unable to detect VLC Player. \nPlease make sure VLC is installed and the directory specified in the program options is correct.", "VLC", MessageBoxButtons.OK, MessageBoxIcon.Warning); } else 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); } lbl_status.Visible = false; } /// /// QT control - Open the file /// [STAThread] private void OpenMovie() { try { if (InvokeRequired) { BeginInvoke(new UpdateUIHandler(OpenMovie)); return; } QTControl.Sizing = QTSizingModeEnum.qtControlFitsMovie; QTControl.URL = currently_playing; QTControl.Sizing = QTSizingModeEnum.qtMovieFitsControl; QTControl.Show(); this.ClientSize = QTControl.Size; this.Height += 25; } catch (COMException ex) { QTUtils qtu = new QTUtils(); 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); } catch (Exception ex) { MessageBox.Show(this, "Unable to open movie:\n\n" + ex, "QT", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } #endregion } }