X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fkthumb.h;h=b8bc3d0d1bfb11b0d36f4e2489d2b8608af1159c;hb=a5b0bcb8bb9674224ac6476d52c19d9b4f1ded92;hp=eb3f61a1373965ee187b836b3aaae8d56ea10e7d;hpb=20355351f224646a58f0fc0baecaa647d0f765b3;p=kdenlive

diff --git a/src/kthumb.h b/src/kthumb.h
index eb3f61a1..b8bc3d0d 100644
--- a/src/kthumb.h
+++ b/src/kthumb.h
@@ -20,11 +20,11 @@
 
 #include <QPixmap>
 #include <QFile>
-#include <QThread>
-#include <QMutex>
 #include <QDomElement>
+#include <QFuture>
 
 #include <KUrl>
+#include <kdeversion.h>
 
 #include <mlt++/Mlt.h>
 
@@ -49,31 +49,7 @@ class Profile;
 
 class ClipManager;
 
-
-
-class MyThread : public QThread
-{
-    Q_OBJECT
-public:
-    virtual void run();
-    void init(KUrl url, QString target, double frame, double frameLength, int frequency, int channels, int arrayWidth);
-    bool isWorking();
-    bool stop_me;
-
-private:
-    QFile f;
-    KUrl m_url;
-    double m_frame;
-    double m_frameLength;
-    int m_frequency;
-    int m_channels;
-    int m_arrayWidth;
-    bool m_isWorking;
-
-signals:
-    void audioThumbProgress(const int);
-    void audioThumbOver();
-};
+typedef QMap <int, QMap <int, QByteArray> > audioByteArray;
 
 class KThumb: public QObject
 {
@@ -87,10 +63,17 @@ Q_OBJECT public:
     bool hasProducer() const;
     void clearProducer();
     void updateThumbUrl(const QString &hash);
+    void extractImage(QList <int> frames);
+    QPixmap extractImage(int frame, int width, int height);
+#if KDE_IS_VERSION(4,5,0)
+    /** @brief Request thumbnails for the frame range. */
+    void queryIntraThumbs(QList <int> missingFrames);
+    /** @brief Query cached thumbnail. */
+    QImage findCachedThumb(const QString &path);
+#endif
+    void getThumb(int frame);
 
 public slots:
-    void extractImage(int frame, int frame2);
-    QPixmap extractImage(int frame, int width, int height);
     void updateClipUrl(KUrl url, const QString &hash);
     static QPixmap getImage(KUrl url, int width, int height);
 //    static QPixmap getImage(QDomElement xml, int frame, int width, int height);
@@ -100,25 +83,50 @@ public slots:
     void removeAudioThumb();
     void getAudioThumbs(int channel, double frame, double frameLength, int arrayWidth);
     static QPixmap getImage(KUrl url, int frame, int width, int height);
-    static QImage getFrame(Mlt::Producer *producer, int framepos, int width, int height);
+    static QImage getFrame(Mlt::Producer *producer, int framepos, int frameWidth, int displayWidth, int height);
+    static QImage getFrame(Mlt::Frame *frame, int frameWidth, int displayWidth, int height);
+    /** @brief Calculates image variance, useful to know if a thumbnail is interesting. 
+     *  @return an integer between 0 and 100. 0 means no variance, eg. black image while bigger values mean contrasted image
+     * */
+    static uint imageVariance(QImage image);
 
 private slots:
-    void slotAudioThumbProgress(const int progress);
     void slotAudioThumbOver();
+    void slotCreateAudioThumbs();
+#if KDE_IS_VERSION(4,5,0)
+    /** @brief Fetch all requested frames. */ 
+    void slotGetIntraThumbs();
+#endif
 
 private:
-    MyThread m_audioThumbProducer;
+    QFuture<void> m_audioThumbProducer;
     KUrl m_url;
     QString m_thumbFile;
     double m_dar;
+    double m_ratio;
     Mlt::Producer *m_producer;
     ClipManager *m_clipManager;
     QString m_id;
+    /** @brief Controls the intra frames thumbnails process (cached thumbnails). */
+    QFuture<void> m_intra;
+    QFile m_audioThumbFile;
+    bool m_stopAudioThumbs;
+    double m_frame;
+    double m_frameLength;
+    int m_frequency;
+    int m_channels;
+    int m_arrayWidth;
+    /** @brief List of frame numbers from which we want to extract thumbnails. */
+    QList <int> m_intraFramesQueue;
+    QMutex m_mutex;
+    QImage getProducerFrame(int framepos, int frameWidth, int displayWidth, int height);
 
 signals:
-    void thumbReady(int, QPixmap);
+    void thumbReady(int, QImage);
     void mainThumbReady(const QString &, QPixmap);
-    void audioThumbReady(QMap <int, QMap <int, QByteArray> >);
+    void audioThumbReady(const audioByteArray&);
+    /** @brief We have finished caching all requested thumbs. */
+    void thumbsCached();
 };
 
 #endif