Android: fix retrieving metadata from assets, qrc and remote files.

We need the same logic as for the media player: local files and assets
must be loaded with a FileDescriptor.
Because of a bug in Android API level >= 14, remote files have to be
loaded in different ways depending on the version.

Task-number: QTBUG-40274
Change-Id: I6411b959064d22219cf981a4dc8f4f26cf16f65f
Reviewed-by: Christian Stromme <christian.stromme@digia.com>

5 files changed, 13 insertions, 10 deletions

diff --git a/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.cpp b/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.cpp
index 6817d65b0..90efcc503 100644
--- a/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.cpp
+++ b/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.cpp
@@ -325,8 +325,10 @@ void QAndroidMediaPlayerControl::setMedia(const QMediaContent &mediaContent,
     mMediaPlayer->setDataSource(mediaPath);
     mMediaPlayer->prepareAsync();
 
-    if (!reloading)
+    if (!reloading) {
         Q_EMIT mediaChanged(mMediaContent);
+        Q_EMIT actualMediaLocationChanged(mediaPath);
+    }
 
     resetBufferingProgress();
 }
diff --git a/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.h b/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.h
index 5744c11b8..1f61809cd 100644
--- a/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.h
+++ b/src/plugins/android/src/mediaplayer/qandroidmediaplayercontrol.h
@@ -80,6 +80,7 @@ public:
 
 Q_SIGNALS:
     void metaDataUpdated();
+    void actualMediaLocationChanged(const QString &url);
 
 public Q_SLOTS:
     void setPosition(qint64 position) Q_DECL_OVERRIDE;
diff --git a/src/plugins/android/src/mediaplayer/qandroidmediaservice.cpp b/src/plugins/android/src/mediaplayer/qandroidmediaservice.cpp
index 175958676..c6a7d3c39 100644
--- a/src/plugins/android/src/mediaplayer/qandroidmediaservice.cpp
+++ b/src/plugins/android/src/mediaplayer/qandroidmediaservice.cpp
@@ -53,8 +53,8 @@ QAndroidMediaService::QAndroidMediaService(QObject *parent)
 {
     mMediaControl = new QAndroidMediaPlayerControl;
     mMetadataControl = new QAndroidMetaDataReaderControl;
-    connect(mMediaControl, SIGNAL(mediaChanged(QMediaContent)),
-            mMetadataControl, SLOT(onMediaChanged(QMediaContent)));
+    connect(mMediaControl, SIGNAL(actualMediaLocationChanged(QString)),
+            mMetadataControl, SLOT(onMediaChanged(QString)));
     connect(mMediaControl, SIGNAL(metaDataUpdated()),
             mMetadataControl, SLOT(onUpdateMetaData()));
 }
diff --git a/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.cpp b/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.cpp
index 82bd74997..7f68bc13c 100644
--- a/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.cpp
+++ b/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.cpp
@@ -101,18 +101,18 @@ QStringList QAndroidMetaDataReaderControl::availableMetaData() const
     return m_metadata.keys();
 }
 
-void QAndroidMetaDataReaderControl::onMediaChanged(const QMediaContent &media)
+void QAndroidMetaDataReaderControl::onMediaChanged(const QString &url)
 {
     if (!m_retriever)
         return;
 
-    m_mediaContent = media;
+    m_mediaLocation = url;
     updateData();
 }
 
 void QAndroidMetaDataReaderControl::onUpdateMetaData()
 {
-    if (!m_retriever || m_mediaContent.isNull())
+    if (!m_retriever || m_mediaLocation.isEmpty())
         return;
 
     updateData();
@@ -122,8 +122,8 @@ void QAndroidMetaDataReaderControl::updateData()
 {
     m_metadata.clear();
 
-    if (!m_mediaContent.isNull()) {
-        if (m_retriever->setDataSource(m_mediaContent.canonicalUrl())) {
+    if (!m_mediaLocation.isEmpty()) {
+        if (m_retriever->setDataSource(m_mediaLocation)) {
             QString mimeType = m_retriever->extractMetadata(AndroidMediaMetadataRetriever::MimeType);
             if (!mimeType.isNull())
                 m_metadata.insert(QMediaMetaData::MediaType, mimeType);
diff --git a/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.h b/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.h
index 67b92f1eb..a8f1d92f2 100644
--- a/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.h
+++ b/src/plugins/android/src/mediaplayer/qandroidmetadatareadercontrol.h
@@ -62,13 +62,13 @@ public:
     QStringList availableMetaData() const Q_DECL_OVERRIDE;
 
 public Q_SLOTS:
-    void onMediaChanged(const QMediaContent &media);
+    void onMediaChanged(const QString &url);
     void onUpdateMetaData();
 
 private:
     void updateData();
 
-    QMediaContent m_mediaContent;
+    QString m_mediaLocation;
     bool m_available;
     QVariantMap m_metadata;