summaryrefslogtreecommitdiffstats
path: root/src/rip/videodvd/k3bvideodvdrippingpreview.cpp
diff options
context:
space:
mode:
authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-03 02:15:56 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-03 02:15:56 +0000
commit50b48aec6ddd451a6d1709c0942477b503457663 (patch)
treea9ece53ec06fd0a2819de7a2a6de997193566626 /src/rip/videodvd/k3bvideodvdrippingpreview.cpp
downloadk3b-50b48aec6ddd451a6d1709c0942477b503457663.tar.gz
k3b-50b48aec6ddd451a6d1709c0942477b503457663.zip
Added abandoned KDE3 version of K3B
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k3b@1084400 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'src/rip/videodvd/k3bvideodvdrippingpreview.cpp')
-rw-r--r--src/rip/videodvd/k3bvideodvdrippingpreview.cpp135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/rip/videodvd/k3bvideodvdrippingpreview.cpp b/src/rip/videodvd/k3bvideodvdrippingpreview.cpp
new file mode 100644
index 0000000..3ba7582
--- /dev/null
+++ b/src/rip/videodvd/k3bvideodvdrippingpreview.cpp
@@ -0,0 +1,135 @@
+/*
+ *
+ * $Id: sourceheader 511311 2006-02-19 14:51:05Z trueg $
+ * Copyright (C) 2006 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#include "k3bvideodvdrippingpreview.h"
+
+#include <k3bcore.h>
+#include <k3bexternalbinmanager.h>
+#include <k3bdevice.h>
+
+#include <kprocess.h>
+#include <ktempdir.h>
+#include <kdebug.h>
+
+#include <qdir.h>
+
+
+
+K3bVideoDVDRippingPreview::K3bVideoDVDRippingPreview( QObject* parent )
+ : QObject( parent ),
+ m_tempDir( 0 ),
+ m_process( 0 )
+{
+}
+
+
+K3bVideoDVDRippingPreview::~K3bVideoDVDRippingPreview()
+{
+ delete m_process;
+ delete m_tempDir;
+}
+
+
+void K3bVideoDVDRippingPreview::generatePreview( const K3bVideoDVD::VideoDVD& dvd, int title, int chapter )
+{
+ // cleanup first
+ delete m_process;
+ delete m_tempDir;
+ m_process = 0;
+ m_tempDir = 0;
+ m_canceled = false;
+
+ const K3bExternalBin* bin = k3bcore->externalBinManager()->binObject("transcode");
+ if( !bin ) {
+ emit previewDone( false );
+ return;
+ }
+
+ // auto-select a chapter
+ // choose the center chapter, but not the first or last if possible
+ if( chapter == 0 )
+ chapter = QMIN( QMAX( dvd[title-1].numChapters()/2, 2 ), QMAX( dvd[title-1].numChapters() - 1, 1 ) );
+
+ // select a frame number
+ unsigned int frame = 30;
+ if( dvd[title-1][chapter-1].playbackTime().totalFrames() < frame )
+ frame = dvd[title-1][chapter-1].playbackTime().totalFrames() / 2;
+
+ m_dvd = dvd;
+ m_title = title;
+ m_chapter = chapter;
+
+ m_tempDir = new KTempDir();
+ m_tempDir->setAutoDelete( true );
+
+ m_process = new KProcess();
+ *m_process << bin->path;
+ *m_process << "-i" << dvd.device()->blockDeviceName();
+ *m_process << "-T" << QString("%1,%2").arg(title).arg(chapter);
+ *m_process << "-x" << "dvd,null";
+ *m_process << "--dvd_access_delay" << "0";
+ *m_process << "-y" << "ppm,null";
+ *m_process << "-c" << QString("%1-%2").arg( frame ).arg( frame+1 );
+ *m_process << "-Z" << "x200";
+ *m_process << "-o" << m_tempDir->name();
+
+ connect( m_process, SIGNAL(processExited(KProcess*)),
+ this, SLOT(slotTranscodeFinished(KProcess*)) );
+ if( !m_process->start( KProcess::NotifyOnExit, KProcess::AllOutput ) ) { // we use AllOutput to not pollute stdout
+ // something went wrong when starting the program
+ // it "should" be the executable
+ kdDebug() << "(K3bVideoDVDRippingPreview) Could not start transcode." << endl;
+ delete m_process;
+ delete m_tempDir;
+ m_process = 0;
+ m_tempDir = 0;
+ emit previewDone( false );
+ }
+}
+
+
+void K3bVideoDVDRippingPreview::cancel()
+{
+ if( m_process && m_process->isRunning() ) {
+ m_canceled = true;
+ m_process->kill();
+ }
+}
+
+
+void K3bVideoDVDRippingPreview::slotTranscodeFinished( KProcess* )
+{
+ // read the image
+ QString filename = m_tempDir->name() + "000000.ppm";// + tempQDir->entryList( QDir::Files ).first();
+ kdDebug() << "(K3bVideoDVDRippingPreview) reading from file " << filename << endl;
+ m_preview = QImage( filename );
+ bool success = !m_preview.isNull() && !m_canceled;
+
+ // remove temp files
+ delete m_tempDir;
+ m_tempDir = 0;
+
+ // clean up
+ delete m_process;
+ m_process = 0;
+
+ // retry the first chapter in case another failed
+ if( !success && m_chapter > 1 )
+ generatePreview( m_dvd, m_title, 1 );
+ else
+ emit previewDone( success );
+}
+
+#include "k3bvideodvdrippingpreview.moc"