Implemented metadata handling in Phonon MMF backend

Task-number: QTBUG-4662
Reviewed-by: Frans Englich

8 files changed, 71 insertions, 2 deletions

diff --git a/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp b/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp
index b443194..f2efaa0 100644
--- a/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp
+++ b/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp
@@ -392,7 +392,28 @@ void MMF::AbstractMediaPlayer::changeState(PrivateState newState)
             play();
         }
     }
+}
+
+void MMF::AbstractMediaPlayer::updateMetaData()
+{
+    TRACE_CONTEXT(AbstractMediaPlayer::updateMetaData, EAudioInternal);
+    TRACE_ENTRY_0();
+
+    m_metaData.clear();
+
+    const int numberOfEntries = numberOfMetaDataEntries();
+    for(int i=0; i<numberOfEntries; ++i) {
+        const QPair<QString, QString> entry = metaDataEntry(i);
 
+        // Note that we capitalize the key, as required by the Ogg Vorbis
+        // metadata standard to which Phonon adheres:
+        // http://xiph.org/vorbis/doc/v-comment.html
+        m_metaData.insert(entry.first.toUpper(), entry.second);
+    }
+
+    emit metaDataChanged(m_metaData);
+
+    TRACE_EXIT_0();
 }
 
 QT_END_NAMESPACE
diff --git a/src/3rdparty/phonon/mmf/abstractmediaplayer.h b/src/3rdparty/phonon/mmf/abstractmediaplayer.h
index 1ea236b..cff7bab 100644
--- a/src/3rdparty/phonon/mmf/abstractmediaplayer.h
+++ b/src/3rdparty/phonon/mmf/abstractmediaplayer.h
@@ -73,6 +73,10 @@ protected:
     virtual void close() = 0;
     virtual void changeState(PrivateState newState);
 
+    void updateMetaData();
+    virtual int numberOfMetaDataEntries() const = 0;
+    virtual QPair<QString, QString> metaDataEntry(int index) const = 0;
+
 protected:
     bool tickTimerRunning() const;
     void startTickTimer();
@@ -105,6 +109,8 @@ private:
     MediaSource                 m_source;
     MediaSource                 m_nextSource;
 
+    QMultiMap<QString, QString> m_metaData;
+
 };
 }
 }
diff --git a/src/3rdparty/phonon/mmf/abstractplayer.h b/src/3rdparty/phonon/mmf/abstractplayer.h
index 1c4ea02..66496cc 100644
--- a/src/3rdparty/phonon/mmf/abstractplayer.h
+++ b/src/3rdparty/phonon/mmf/abstractplayer.h
@@ -97,13 +97,14 @@ public:
                   const QString &errorMessage = QString());
 
     Phonon::State state() const;
+
 Q_SIGNALS:
     void totalTimeChanged(qint64 length);
     void finished();
     void tick(qint64 time);
     void stateChanged(Phonon::State oldState,
                       Phonon::State newState);
-
+    void metaDataChanged(const QMultiMap<QString, QString>& metaData);
 
 protected:
     /**
diff --git a/src/3rdparty/phonon/mmf/audioplayer.cpp b/src/3rdparty/phonon/mmf/audioplayer.cpp
index 1d259a8..8fccfe6 100644
--- a/src/3rdparty/phonon/mmf/audioplayer.cpp
+++ b/src/3rdparty/phonon/mmf/audioplayer.cpp
@@ -182,8 +182,8 @@ void MMF::AudioPlayer::MapcInitComplete(TInt aError,
 
     if (KErrNone == aError) {
         maxVolumeChanged(m_player->MaxVolume());
-
         emit totalTimeChanged(totalTime());
+        updateMetaData();
         changeState(StoppedState);
     } else {
         // TODO: set different error states according to value of aError?
@@ -251,5 +251,24 @@ void MMF::AudioPlayer::MaloLoadingComplete()
 #endif // QT_PHONON_MMF_AUDIO_DRM
 
 
+//-----------------------------------------------------------------------------
+// Private functions
+//-----------------------------------------------------------------------------
+
+int MMF::AudioPlayer::numberOfMetaDataEntries() const
+{
+    int numberOfEntries = 0;
+    m_player->GetNumberOfMetaDataEntries(numberOfEntries); // ignoring return code
+    return numberOfEntries;
+}
+
+QPair<QString, QString> MMF::AudioPlayer::metaDataEntry(int index) const
+{
+    CMMFMetaDataEntry *entry = 0;
+    QT_TRAP_THROWING(entry = m_player->GetMetaDataEntryL(index));
+    return QPair<QString, QString>(qt_TDesC2QString(entry->Name()), qt_TDesC2QString(entry->Value()));
+}
+
+
 QT_END_NAMESPACE
 
diff --git a/src/3rdparty/phonon/mmf/audioplayer.h b/src/3rdparty/phonon/mmf/audioplayer.h
index 60ef436..bc60076 100644
--- a/src/3rdparty/phonon/mmf/audioplayer.h
+++ b/src/3rdparty/phonon/mmf/audioplayer.h
@@ -94,6 +94,10 @@ public:
 private:
     void construct();
 
+    // AbstractMediaPlayer
+    virtual int numberOfMetaDataEntries() const;
+    virtual QPair<QString, QString> metaDataEntry(int index) const;
+
 private:
     /**
      * Using CPlayerType typedef in order to be able to easily switch between
diff --git a/src/3rdparty/phonon/mmf/mediaobject.cpp b/src/3rdparty/phonon/mmf/mediaobject.cpp
index 74aaa58..f004fd7 100644
--- a/src/3rdparty/phonon/mmf/mediaobject.cpp
+++ b/src/3rdparty/phonon/mmf/mediaobject.cpp
@@ -322,6 +322,7 @@ void MMF::MediaObject::createPlayer(const MediaSource &source)
     connect(m_player.data(), SIGNAL(stateChanged(Phonon::State, Phonon::State)), SIGNAL(stateChanged(Phonon::State, Phonon::State)));
     connect(m_player.data(), SIGNAL(finished()), SIGNAL(finished()));
     connect(m_player.data(), SIGNAL(tick(qint64)), SIGNAL(tick(qint64)));
+    connect(m_player.data(), SIGNAL(metaDataChanged(const QMultiMap<QString, QString>&)), SIGNAL(metaDataChanged(const QMultiMap<QString, QString>&)));
 
     // We need to call setError() after doing the connects, otherwise the
     // error won't be received.
diff --git a/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp b/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp
index fe469cf..ba7d005 100644
--- a/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp
+++ b/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp
@@ -490,6 +490,19 @@ bool MMF::VideoPlayer::getNativeWindowSystemHandles()
     TRACE_RETURN("changed %d", changed);
 }
 
+int MMF::VideoPlayer::numberOfMetaDataEntries() const
+{
+    int numberOfEntries = 0;
+    TRAP_IGNORE(numberOfEntries = m_player->NumberOfMetaDataEntriesL());
+    return numberOfEntries;
+}
+
+QPair<QString, QString> MMF::VideoPlayer::metaDataEntry(int index) const
+{
+    CMMFMetaDataEntry *entry = 0;
+    QT_TRAP_THROWING(entry = m_player->MetaDataEntryL(index));
+    return QPair<QString, QString>(qt_TDesC2QString(entry->Name()), qt_TDesC2QString(entry->Value()));
+}
 
 QT_END_NAMESPACE
 
diff --git a/src/3rdparty/phonon/mmf/mmf_videoplayer.h b/src/3rdparty/phonon/mmf/mmf_videoplayer.h
index 8072404..fa4e59b 100644
--- a/src/3rdparty/phonon/mmf/mmf_videoplayer.h
+++ b/src/3rdparty/phonon/mmf/mmf_videoplayer.h
@@ -86,6 +86,10 @@ private:
 
     void updateMmfOutput();
 
+    // AbstractMediaPlayer
+    virtual int numberOfMetaDataEntries() const;
+    virtual QPair<QString, QString> metaDataEntry(int index) const;
+
 private:
     QScopedPointer<CVideoPlayerUtility> m_player;