]> git.sesse.net Git - kdenlive/blobdiff - src/kdenlivedoc.cpp
Fix tracks issues (load & save of tracks with hidden audio or video), also fix
[kdenlive] / src / kdenlivedoc.cpp
index af34aec97cfd296e41bd7324fd04cff6473f894d..e239cf7d40f0b4122f65bdc7c3418febb8c6be5f 100644 (file)
@@ -17,6 +17,9 @@
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  ***************************************************************************/
 
+#include <QCryptographicHash>
+#include <QFile>
+
 #include <KDebug>
 #include <KStandardDirs>
 #include <KMessageBox>
@@ -25,7 +28,6 @@
 #include <KIO/NetAccess>
 #include <KApplication>
 
-#include <QFile>
 
 #include <mlt++/Mlt.h>
 
@@ -43,6 +45,8 @@
 
 KdenliveDoc::KdenliveDoc(const KUrl &url, const KUrl &projectFolder, QUndoGroup *undoGroup, const QString &profileName, const QPoint tracks, MainWindow *parent): QObject(parent), m_render(NULL), m_url(url), m_projectFolder(projectFolder), m_commandStack(new QUndoStack(undoGroup)), m_modified(false), m_documentLoadingProgress(0), m_documentLoadingStep(0.0), m_startPos(0), m_zoom(7), m_autosave(NULL) {
     m_clipManager = new ClipManager(this);
+    m_autoSaveTimer = new QTimer(this);
+    m_autoSaveTimer->setSingleShot(true);
     if (!url.isEmpty()) {
         QString tmpFile;
         if (KIO::NetAccess::download(url.path(), tmpFile, parent)) {
@@ -58,26 +62,27 @@ KdenliveDoc::KdenliveDoc(const KUrl &url, const KUrl &projectFolder, QUndoGroup
                 m_zoom = infoXml.attribute("zoom", "7").toInt();
                 setProfilePath(profilePath);
                 double version = infoXml.attribute("version").toDouble();
-                if (version < 0.8) convertDocument(version);
-                else {
-                    //delete all mlt producers and instead, use Kdenlive saved producers
-                    /*QDomNodeList prods = m_document.elementsByTagName("producer");
-                    int maxprod = prods.count();
-                    int pos = 0;
-                    for (int i = 0; i < maxprod; i++) {
-                        QDomNode m = prods.at(pos);
-                        QString prodId = m.toElement().attribute("id");
-                        if (prodId == "black" || prodId.startsWith("slowmotion"))
-                            pos++;
-                        else westley.removeChild(m);
-                    }*/
-                    /*prods = m_document.elementsByTagName("kdenlive_producer");
-                    maxprod = prods.count();
-                    for (int i = 0; i < maxprod; i++) {
-                        prods.at(0).toElement().setTagName("producer");
-                        westley.insertBefore(prods.at(0), QDomNode());
-                    }*/
+
+                // Upgrade old Kdenlive documents to current version
+                convertDocument(version);
+
+                // Build tracks
+                QString tracks = infoXml.attribute("tracks");
+                TrackInfo videoTrack;
+                videoTrack.type = VIDEOTRACK;
+                videoTrack.isMute = false;
+                videoTrack.isBlind = false;
+
+                TrackInfo audioTrack;
+                audioTrack.type = AUDIOTRACK;
+                audioTrack.isMute = false;
+                audioTrack.isBlind = true;
+                for (int i = 0; i < tracks.size(); i++) {
+                    if (tracks.data()[i] == 'v') m_tracksList.append(videoTrack);
+                    else m_tracksList.append(audioTrack);
                 }
+
+
                 QDomElement e;
                 QDomNodeList producers = m_document.elementsByTagName("producer");
                 QDomNodeList infoproducers = m_document.elementsByTagName("kdenlive_producer");
@@ -155,8 +160,7 @@ KdenliveDoc::KdenliveDoc(const KUrl &url, const KUrl &projectFolder, QUndoGroup
     if (m_fps == 30000.0 / 1001.0) m_timecode.setFormat(30, true);
     else m_timecode.setFormat((int) m_fps);
 
-    m_autoSaveTimer = new QTimer(this);
-    m_autoSaveTimer->setSingleShot(true);
+
     connect(m_autoSaveTimer, SIGNAL(timeout()), this, SLOT(slotAutoSave()));
 }
 
@@ -164,7 +168,10 @@ KdenliveDoc::~KdenliveDoc() {
     delete m_commandStack;
     delete m_clipManager;
     delete m_autoSaveTimer;
-    m_autosave->remove();
+    if (m_autosave) {
+        m_autosave->remove();
+        delete m_autosave;
+    }
 }
 
 QDomDocument KdenliveDoc::createEmptyDocument(const int videotracks, const int audiotracks) {
@@ -173,6 +180,17 @@ QDomDocument KdenliveDoc::createEmptyDocument(const int videotracks, const int a
     QDomElement westley = doc.createElement("westley");
     doc.appendChild(westley);
 
+
+    TrackInfo videoTrack;
+    videoTrack.type = VIDEOTRACK;
+    videoTrack.isMute = false;
+    videoTrack.isBlind = false;
+
+    TrackInfo audioTrack;
+    audioTrack.type = AUDIOTRACK;
+    audioTrack.isMute = false;
+    audioTrack.isBlind = true;
+
     QDomElement tractor = doc.createElement("tractor");
     tractor.setAttribute("id", "maintractor");
     QDomElement multitrack = doc.createElement("multitrack");
@@ -200,6 +218,7 @@ QDomDocument KdenliveDoc::createEmptyDocument(const int videotracks, const int a
         track.setAttribute("producer", "playlist" + QString::number(i));
         track.setAttribute("hide", "video");
         tractor.appendChild(track);
+        m_tracksList.append(audioTrack);
     }
 
     // create video tracks
@@ -207,6 +226,7 @@ QDomDocument KdenliveDoc::createEmptyDocument(const int videotracks, const int a
         QDomElement track = doc.createElement("track");
         track.setAttribute("producer", "playlist" + QString::number(i));
         tractor.appendChild(track);
+        m_tracksList.append(videoTrack);
     }
 
     for (uint i = 2; i < total ; i++) {
@@ -269,7 +289,7 @@ QDomElement KdenliveDoc::guidesXml() const {
 }
 
 void KdenliveDoc::slotAutoSave() {
-    if (m_render) {
+    if (m_render && m_autosave) {
         if (!m_autosave->isOpen() && !m_autosave->open(QIODevice::ReadWrite)) {
             // show error: could not open the autosave file
             kDebug() << "ERROR; CANNOT CREATE AUTOSAVE FILE";
@@ -291,6 +311,24 @@ int KdenliveDoc::zoom() const {
 
 void KdenliveDoc::convertDocument(double version) {
     kDebug() << "Opening a document with version " << version;
+    if (version == 0.8) {
+        // Add the tracks information
+        QString tracksOrder;
+        QDomNodeList tracks = m_document.elementsByTagName("track");
+        int max = tracks.count();
+        for (int i = 0; i < max; i++) {
+            QDomElement t = tracks.at(i).toElement();
+            if (t.attribute("hide") == "video") tracksOrder.append('a');
+            else tracksOrder.append('v');
+        }
+        QDomNode kdenlivedoc = m_document.elementsByTagName("kdenlivedoc").at(0);
+        QDomElement infoXml = kdenlivedoc.toElement();
+        QString currentTrackOrder = infoXml.attribute("tracks");
+        if (currentTrackOrder.isEmpty()) infoXml.setAttribute("tracks", tracksOrder);
+
+        return;
+    }
+
     // Opening a old Kdenlive document
     if (version == 0.7) {
         kDebug() << "Unable to open document with version " << version;
@@ -304,10 +342,11 @@ void KdenliveDoc::convertDocument(double version) {
     QDomNode multitrack = m_document.elementsByTagName("multitrack").at(0);
     QDomNodeList playlists = m_document.elementsByTagName("playlist");
 
-    m_startPos = kdenlivedoc.toElement().attribute("timeline_position").toInt();
+    //m_startPos = kdenlivedoc.toElement().attribute("timeline_position").toInt();
 
     QDomNode props = m_document.elementsByTagName("properties").at(0).toElement();
     QString profile = props.toElement().attribute("videoprofile");
+    m_startPos = props.toElement().attribute("timeline_position").toInt();
     if (profile == "dv_wide") profile = "dv_pal_wide";
     setProfilePath(profile);
 
@@ -490,6 +529,15 @@ void KdenliveDoc::convertDocument(double version) {
     max = producers.count();
     for (int i = 0; i < max; i++) {
         QDomElement prod = producers.at(0).toElement();
+        // add resource also as a property (to allow path correction in setNewResource())
+        // TODO: will it work with slowmotion? needs testing
+        if (!prod.attribute("resource").isEmpty()) {
+            QDomElement prop_resource = m_document.createElement("property");
+            prop_resource.setAttribute("name", "resource");
+            QDomText resource = m_document.createTextNode(prod.attribute("resource"));
+            prop_resource.appendChild(resource);
+            prod.appendChild(prop_resource);
+        }
         QDomNode m = prod.firstChild();
         if (!m.isNull()) {
             if (m.toElement().tagName() == "markers") {
@@ -532,12 +580,12 @@ void KdenliveDoc::convertDocument(double version) {
                             content.setAttribute("font-color", colorToString(c));
                             // todo: These fields are missing from the newly generated xmldata:
                             // transform, startviewport, endviewport, background
-                            
+
                             QDomText conttxt = tdoc.createTextNode(ob.attribute("text"));
                             content.appendChild(conttxt);
                             item.appendChild(position);
                             item.appendChild(content);
-                            title.appendChild(item);                            
+                            title.appendChild(item);
                         } else if (ob.attribute("type") == "5") {
                             // rectangle object
                             QDomElement item = tdoc.createElement("item");
@@ -607,25 +655,36 @@ void KdenliveDoc::convertDocument(double version) {
             if (wproducer.isNull()) {
                 kWarning() << "Found producer in westley0, that was not a QDomElement";
             } else {
-              // We have to do slightly different things, depending on the type
-              kDebug() << "Converting producer element with type " << wproducer.attribute("type");
-              if ( wproducer.attribute("type").toInt() == TEXT ) {
-                kDebug() << "Found TEXT element in producer" << endl;
-                QDomElement kproducer = wproducer.cloneNode(true).toElement();
-                kproducer.setTagName("kdenlive_producer"); 
-                kdenlivedoc_new.appendChild(kproducer);
-                // todo: Perhaps needs some more changes here to "frequency", aspect ratio as a float, frame_size, channels, and later, ressource and title name
-              } else {
-                QDomElement kproducer = m_document.createElement("kdenlive_producer");
-                kproducer.setAttribute("id", wproducer.attribute("id"));
-                kproducer.setAttribute("description", wproducer.attribute("description"));
-                kproducer.setAttribute("resource", wproducer.attribute("resource"));
-                kproducer.setAttribute("type", wproducer.attribute("type"));
-                kdenlivedoc_new.appendChild(kproducer);
-              }
-              if (wproducer.attribute("id").toInt() > max_kproducer_id) {
-                  max_kproducer_id = wproducer.attribute("id").toInt();
-              }
+                // We have to do slightly different things, depending on the type
+                kDebug() << "Converting producer element with type" << wproducer.attribute("type");
+                if (wproducer.attribute("type").toInt() == TEXT) {
+                    kDebug() << "Found TEXT element in producer" << endl;
+                    QDomElement kproducer = wproducer.cloneNode(true).toElement();
+                    kproducer.setTagName("kdenlive_producer");
+                    kdenlivedoc_new.appendChild(kproducer);
+                    // TODO: Perhaps needs some more changes here to "frequency", aspect ratio as a float, frame_size, channels, and later, ressource and title name
+                } else {
+                    QDomElement kproducer = m_document.createElement("kdenlive_producer");
+                    kproducer.setAttribute("id", wproducer.attribute("id"));
+                    if (!wproducer.attribute("description").isEmpty())
+                        kproducer.setAttribute("description", wproducer.attribute("description"));
+                    kproducer.setAttribute("resource", wproducer.attribute("resource"));
+                    kproducer.setAttribute("type", wproducer.attribute("type"));
+                    // Testing fix for 358
+                    if (!wproducer.attribute("aspect_ratio").isEmpty()) {
+                        kproducer.setAttribute("aspect_ratio", wproducer.attribute("aspect_ratio"));
+                    }
+                    if (!wproducer.attribute("source_fps").isEmpty()) {
+                        kproducer.setAttribute("fps", wproducer.attribute("source_fps"));
+                    }
+                    if (!wproducer.attribute("length").isEmpty()) {
+                        kproducer.setAttribute("duration", wproducer.attribute("length"));
+                    }
+                    kdenlivedoc_new.appendChild(kproducer);
+                }
+                if (wproducer.attribute("id").toInt() > max_kproducer_id) {
+                    max_kproducer_id = wproducer.attribute("id").toInt();
+                }
             }
         }
     }
@@ -681,9 +740,43 @@ void KdenliveDoc::convertDocument(double version) {
 
     westley0.removeChild(westley);
 
+    // experimental and probably slow
+    // adds <avfile /> information to <kdenlive_producer />
+    QDomNodeList kproducers = m_document.elementsByTagName("kdenlive_producer");
+    QDomNodeList avfiles = kdenlivedoc_old.elementsByTagName("avfile");
+    kDebug() << "found" << avfiles.count() << "<avfile />s and" << kproducers.count() << "<kdenlive_producer />s";
+    for (int i = 0; i < avfiles.count(); ++i) {
+        QDomElement avfile = avfiles.at(i).toElement();
+        QDomElement kproducer = QDomElement();
+        if (avfile.isNull())
+            kWarning() << "found an <avfile /> that is not a QDomElement";
+        else {
+            QString id = avfile.attribute("id");
+            // this is horrible, must be rewritten, it's just for test
+            for (int j = 0; j < kproducers.count(); ++j) {
+                //kDebug() << "checking <kdenlive_producer /> with id" << kproducers.at(j).toElement().attribute("id");
+                if (kproducers.at(j).toElement().attribute("id") == id) {
+                    kproducer = kproducers.at(j).toElement();
+                    break;
+                }
+            }
+            if (kproducer == QDomElement())
+                kWarning() << "no match for <avfile /> with id =" << id;
+            else {
+                //kDebug() << "ready to set additional <avfile />'s attributes (id =" << id << ")";
+                kproducer.setAttribute("channels", avfile.attribute("channels"));
+                kproducer.setAttribute("duration", avfile.attribute("duration"));
+                kproducer.setAttribute("frame_size", avfile.attribute("width") + "x" + avfile.attribute("height"));
+                kproducer.setAttribute("frequency", avfile.attribute("frequency"));
+                if (kproducer.attribute("description").isEmpty() && !avfile.attribute("description").isEmpty())
+                    kproducer.setAttribute("description", avfile.attribute("description"));
+            }
+        }
+    }
+
     //kDebug() << "/////////////////  CONVERTEDĀ DOC:";
-    // kDebug() << m_document.toString();
-    
+    //kDebug() << m_document.toString();
+    /*
     QFile file( "converted.kdenlive" );
     if ( file.open( QIODevice::WriteOnly ) ) {
       QTextStream stream( &file );
@@ -692,7 +785,7 @@ void KdenliveDoc::convertDocument(double version) {
     } else {
       kDebug() << "Unable to dump file to converted.kdenlive";
     }
-    
+    */
     //kDebug() << "/////////////////  END CONVERTEDĀ DOC:";
 }
 
@@ -710,6 +803,7 @@ bool KdenliveDoc::saveSceneList(const QString &path, QDomDocument sceneList) {
     addedXml.setAttribute("version", "0.8");
     addedXml.setAttribute("profile", profilePath());
     addedXml.setAttribute("position", m_render->seekPosition().frames(m_fps));
+    addedXml.setAttribute("tracks", getTracksInfo());
     addedXml.setAttribute("zoom", m_zoom);
 
     QDomElement e;
@@ -745,36 +839,6 @@ bool KdenliveDoc::saveSceneList(const QString &path, QDomDocument sceneList) {
     return true;
 }
 
-QDomElement KdenliveDoc::documentInfoXml() {
-    QDomDocument doc;
-    QDomElement e;
-    QDomElement addedXml = doc.createElement("kdenlivedoc");
-    QDomElement markers = doc.createElement("markers");
-    addedXml.setAttribute("version", "0.7");
-    addedXml.setAttribute("profile", profilePath());
-    addedXml.setAttribute("position", m_render->seekPosition().frames(m_fps));
-    addedXml.setAttribute("zoom", m_zoom);
-    QList <DocClipBase*> list = m_clipManager->documentClipList();
-    for (int i = 0; i < list.count(); i++) {
-        e = list.at(i)->toXML();
-        e.setTagName("kdenlive_producer");
-        addedXml.appendChild(doc.importNode(e, true));
-        QList < CommentedTime > marks = list.at(i)->commentedSnapMarkers();
-        for (int j = 0; j < marks.count(); j++) {
-            QDomElement marker = doc.createElement("marker");
-            marker.setAttribute("time", marks.at(j).time().ms() / 1000);
-            marker.setAttribute("comment", marks.at(j).comment());
-            marker.setAttribute("id", e.attribute("id"));
-            markers.appendChild(marker);
-        }
-    }
-    addedXml.appendChild(markers);
-    if (!m_guidesXml.isNull()) addedXml.appendChild(doc.importNode(m_guidesXml, true));
-    //kDebug() << m_document.toString();
-    return addedXml;
-}
-
-
 ClipManager *KdenliveDoc::clipManager() {
     return m_clipManager;
 }
@@ -784,12 +848,6 @@ KUrl KdenliveDoc::projectFolder() const {
     return m_projectFolder;
 }
 
-QString KdenliveDoc::getDocumentStandard() {
-    //WARNING: this way to tell the video standard is a bit hackish...
-    if (m_profile.description.contains("pal", Qt::CaseInsensitive) || m_profile.description.contains("25", Qt::CaseInsensitive) || m_profile.description.contains("50", Qt::CaseInsensitive)) return "PAL";
-    return "NTSC";
-}
-
 QString KdenliveDoc::profilePath() const {
     return m_profile.path;
 }
@@ -835,6 +893,7 @@ void KdenliveDoc::setRenderer(Render *render) {
     //qApp->processEvents();
     if (m_render) {
         m_render->setSceneList(m_document.toString(), m_startPos);
+        kDebug() << "// SETTING SCENE LIST:\n\n" << m_document.toString();
         checkProjectClips();
     }
     emit progressInfo(QString(), -1);
@@ -1009,12 +1068,101 @@ void KdenliveDoc::addClip(QDomElement elem, QString clipId, bool createClipItem)
     DocClipBase *clip = m_clipManager->getClipById(producerId);
     if (clip == NULL) {
         elem.setAttribute("id", producerId);
+        QString path = elem.attribute("resource");
+        QString extension;
+        if (elem.attribute("type").toInt() == SLIDESHOW) {
+            extension = KUrl(path).fileName();
+            path = KUrl(path).directory();
+        }
+        if (!path.isEmpty() && !QFile::exists(path)) {
+            const QString size = elem.attribute("file_size");
+            const QString hash = elem.attribute("file_hash");
+            QString newpath;
+            KMessageBox::ButtonCode action = KMessageBox::No;
+            if (!size.isEmpty() && !hash.isEmpty()) {
+                if (!m_searchFolder.isEmpty()) newpath = searchFileRecursively(m_searchFolder, size, hash);
+                else action = (KMessageBox::ButtonCode)KMessageBox::messageBox(kapp->activeWindow(), KMessageBox::WarningYesNo, i18n("<qt>Clip <b>%1</b><br>is invalid, what do you want to do?", path), i18n("File not found"), KGuiItem(i18n("Search automatically")), /*KGuiItem(i18n("Remove from project")), */KGuiItem(i18n("Keep as placeholder")));
+            } else {
+                if (elem.attribute("type").toInt() == SLIDESHOW) {
+                    if (KMessageBox::messageBox(kapp->activeWindow(), KMessageBox::WarningYesNo, i18n("<qt>Clip <b>%1</b><br>is invalid, what do you want to do?", path), i18n("File not found"), KGuiItem(i18n("Search automatically")), /*KGuiItem(i18n("Remove from project")),*/ KGuiItem(i18n("Keep as placeholder"))) == KMessageBox::Yes)
+                        newpath = KFileDialog::getExistingDirectory(KUrl("kfiledialog:///clipfolder"), kapp->activeWindow(), i18n("Looking for %1", path));
+                } else newpath = KFileDialog::getOpenFileName(KUrl("kfiledialog:///clipfolder"), QString(), kapp->activeWindow(), i18n("Looking for %1", path));
+            }
+            if (action == KMessageBox::Yes) {
+                kDebug() << "// ASKED FOR SRCH CLIP: " << clipId;
+                m_searchFolder = KFileDialog::getExistingDirectory(KUrl("kfiledialog:///clipfolder"), kapp->activeWindow());
+                if (!m_searchFolder.isEmpty()) {
+                    newpath = searchFileRecursively(QDir(m_searchFolder), size, hash);
+                }
+            }
+            if (!newpath.isEmpty()) {
+                if (elem.attribute("type").toInt() == SLIDESHOW) newpath.append('/' + extension);
+                elem.setAttribute("resource", newpath);
+                setNewClipResource(clipId, newpath);
+                setModified(true);
+            }
+        }
         clip = new DocClipBase(m_clipManager, elem, producerId);
         m_clipManager->addClip(clip);
     }
     if (createClipItem) emit addProjectClip(clip);
 }
 
+void KdenliveDoc::setNewClipResource(const QString &id, const QString &path) {
+    QDomNodeList prods = m_document.elementsByTagName("producer");
+    int maxprod = prods.count();
+    for (int i = 0; i < maxprod; i++) {
+        QDomNode m = prods.at(i);
+        QString prodId = m.toElement().attribute("id");
+        if (prodId == id || prodId.startsWith(id + "_")) {
+            QDomNodeList params = m.childNodes();
+            for (int j = 0; j < params.count(); j++) {
+                QDomElement e = params.item(j).toElement();
+                if (e.attribute("name") == "resource") {
+                    e.firstChild().setNodeValue(path);
+                    break;
+                }
+            }
+        }
+    }
+}
+
+QString KdenliveDoc::searchFileRecursively(const QDir &dir, const QString &matchSize, const QString &matchHash) const {
+    QString foundFileName;
+    QByteArray fileData;
+    QByteArray fileHash;
+    QStringList filesAndDirs = dir.entryList(QDir::Files | QDir::Readable);
+    for (int i = 0; i < filesAndDirs.size() && foundFileName.isEmpty(); i++) {
+        QFile file(dir.absoluteFilePath(filesAndDirs.at(i)));
+        if (file.open(QIODevice::ReadOnly)) {
+            if (QString::number(file.size()) == matchSize) {
+                /*
+                * 1 MB = 1 second per 450 files (or faster)
+                * 10 MB = 9 seconds per 450 files (or faster)
+                */
+                if (file.size() > 1000000*2) {
+                    fileData = file.read(1000000);
+                    if (file.seek(file.size() - 1000000))
+                        fileData.append(file.readAll());
+                } else
+                    fileData = file.readAll();
+                file.close();
+                fileHash = QCryptographicHash::hash(fileData, QCryptographicHash::Md5);
+                if (QString(fileHash.toHex()) == matchHash)
+                    return file.fileName();
+            }
+        }
+        kDebug() << filesAndDirs.at(i) << file.size() << fileHash.toHex();
+    }
+    filesAndDirs = dir.entryList(QDir::Dirs | QDir::Readable | QDir::Executable | QDir::NoDotAndDotDot);
+    for (int i = 0; i < filesAndDirs.size() && foundFileName.isEmpty(); i++) {
+        foundFileName = searchFileRecursively(dir.absoluteFilePath(filesAndDirs.at(i)), matchSize, matchHash);
+        if (!foundFileName.isEmpty())
+            break;
+    }
+    return foundFileName;
+}
+
 void KdenliveDoc::addClipInfo(QDomElement elem, QString clipId) {
     DocClipBase *clip = m_clipManager->getClipById(clipId);
     if (clip == NULL) {
@@ -1129,7 +1277,53 @@ void KdenliveDoc::slotCreateTextClip(QString group, const QString &groupId) {
     delete dia_ui;
 }
 
+int KdenliveDoc::tracksCount() const {
+    return m_tracksList.count();
+}
+
+TrackInfo KdenliveDoc::trackInfoAt(int ix) const {
+    return m_tracksList.at(ix);
+}
+
+void KdenliveDoc::switchTrackAudio(int ix, bool hide) {
+    m_tracksList[ix].isMute = hide; // !m_tracksList.at(ix).isMute;
+}
+
+void KdenliveDoc::switchTrackVideo(int ix, bool hide) {
+    m_tracksList[ix].isBlind = hide; // !m_tracksList.at(ix).isBlind;
+}
 
+void KdenliveDoc::insertTrack(int ix, TrackInfo type) {
+    if (ix == -1) m_tracksList << type;
+    else m_tracksList.insert(ix, type);
+}
+
+void KdenliveDoc::deleteTrack(int ix) {
+    m_tracksList.removeAt(ix);
+}
+
+const QList <TrackInfo> KdenliveDoc::tracksList() const {
+    return m_tracksList;
+}
+
+QPoint KdenliveDoc::getTracksCount() const {
+    int audio = 0;
+    int video = 0;
+    foreach(const TrackInfo &info, m_tracksList) {
+        if (info.type == VIDEOTRACK) video++;
+        else audio++;
+    }
+    return QPoint(video, audio);
+}
+
+QString KdenliveDoc::getTracksInfo() const {
+    QString result;
+    foreach(const TrackInfo &info, m_tracksList) {
+        if (info.type == VIDEOTRACK) result.append('v');
+        else result.append('a');
+    }
+    return result;
+}
 
 #include "kdenlivedoc.moc"