stability update: make sure we don't interrupt MLT when we just requested a consumer...

[kdenlive] / src / renderer.h

diff --git a/src/renderer.h b/src/renderer.h
index 835b3c204c5d3f480c4a696541804e1dbc7529f2..1320c5c096c37c78036c2770e5ee6b549d406975 100644 (file)
--- a/src/renderer.h
+++ b/src/renderer.h
@@ -44,6 +44,7 @@
 #include <QEvent>
 #include <QMutex>
 #include <QFuture>
+#include <QSemaphore>
 
 class QTimer;
 class QPixmap;
@@ -294,7 +295,6 @@ Q_OBJECT public:
     void updatePreviewSettings();
     void setDropFrames(bool show);
     QString updateSceneListFps(double current_fps, double new_fps, QString scene);
-    void showFrame(Mlt::Frame&);
 
     void showAudio(Mlt::Frame&);
     
@@ -305,6 +305,8 @@ Q_OBJECT public:
     Mlt::Producer *getProducer();
     /** @brief Returns the number of clips to process (When requesting clip info). */
     int processingItems();
+    /** @brief Processing of this clip is over, producer was set on clip, remove from list. */
+    void processingDone(const QString &id);
     /** @brief Force processing of clip with selected id. */
     void forceProcessing(const QString &id);
     /** @brief Are we currently processing clip with selected id. */
@@ -328,7 +330,13 @@ Q_OBJECT public:
     /** @brief Frame rendering is handeled by Kdenlive, don't show video through SDL display */
     void disablePreview(bool disable);
     int requestedSeekPosition;
+    QSemaphore showFrameSemaphore;
+    bool externalConsumer;
 
+protected:
+    static void consumer_frame_show(mlt_consumer, Render * self, mlt_frame frame_ptr);
+    static void consumer_gl_frame_show(mlt_consumer, Render * self, mlt_frame frame_ptr);
+    
 private:
 
     /** @brief The name of this renderer.
@@ -342,7 +350,6 @@ private:
     Mlt::Event *m_showFrameEvent;
     Mlt::Event *m_pauseEvent;
     double m_fps;
-    bool m_externalConsumer;
 
     /** @brief True if we are playing a zone.
      *
@@ -376,8 +383,8 @@ private:
     void mltPasteEffects(Mlt::Producer *source, Mlt::Producer *dest);
     QMap<QString, QString> mltGetTransitionParamsFromXml(QDomElement xml);
     QMap<QString, Mlt::Producer *> m_slowmotionProducers;
-    /** @brief The id of the clip that is currently being loaded for info query */
-    QString m_processingClipId;
+    /** @brief The ids of the clips that are currently being loaded for info query */
+    QStringList m_processingClipId;
 
     /** @brief Build the MLT Consumer object with initial settings.
      *  @param profileName The MLT profile to use for the consumer */
@@ -392,6 +399,8 @@ private:
     void fixAudioMixing(Mlt::Tractor tractor);
     /** @brief Make sure we inform MLT if we need a lot of threads for avformat producer */
     void checkMaxThreads();
+    /** @brief Refresh consumer and wait until frame is displayed */
+    void refreshConsumerDisplay();
 
 private slots:
 
@@ -402,7 +411,7 @@ private slots:
     void processFileProperties();
     /** @brief A clip with multiple video streams was found, ask what to do. */
     void slotMultiStreamProducerFound(const QString path, QList<int> audio_list, QList<int> video_list, stringMap data);
-
+    void showFrame(Mlt::Frame *);
     void slotCheckSeeking();
 
 signals:
@@ -446,9 +455,10 @@ signals:
      *
      * Used in Mac OS X. */
     void showImageSignal(QImage);
-    void showAudioSignal(const QByteArray &);
+    void showAudioSignal(const QVector<double> &);
     void addClip(const KUrl &, stringMap);
     void checkSeeking();
+    void mltFrameReceived(Mlt::Frame *);
 
 public slots: