Added support for streaming playback to Phonon MMF backend

Because the MIME type of the stream cannot always be deduced from the
URL, we assume that it is a video stream.  This is based on the
assumption that the video controllers will be capable of parsing
the container formats for audio-only, as well as video clips.  Note
that this assumption may not hold on all devices.

Note that most implementations of the MMF client APIs do not support
HTTP streaming (a.k.a. progressive download).  The backend has therefore
only been tested with RTSP streams - see the JIRA entry for further
details.

Task-number: QTBUG-4660
Reviewed-by: Frans Englich

8 files changed, 30 insertions, 6 deletions

diff --git a/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp b/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp
index adade9c..260d8e6 100644
--- a/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp
+++ b/src/3rdparty/phonon/mmf/abstractmediaplayer.cpp
@@ -243,12 +243,12 @@ void MMF::AbstractMediaPlayer::setFileSource(const MediaSource &source, RFile& f
         if (url.scheme() == QLatin1String("file")) {
             symbianErr = openFile(file);
             if (KErrNone != symbianErr)
+                errorMessage = tr("Error opening file");
+        } else {
+            symbianErr = openUrl(url.toString());
+            if (KErrNone != symbianErr)
                 errorMessage = tr("Error opening URL");
         }
-        else {
-            TRACE_0("Error opening URL: protocol not supported");
-            errorMessage = tr("Error opening URL: protocol not supported");
-        }
 
         break;
     }
diff --git a/src/3rdparty/phonon/mmf/abstractmediaplayer.h b/src/3rdparty/phonon/mmf/abstractmediaplayer.h
index cb6e437..0432b07 100644
--- a/src/3rdparty/phonon/mmf/abstractmediaplayer.h
+++ b/src/3rdparty/phonon/mmf/abstractmediaplayer.h
@@ -68,6 +68,7 @@ protected:
     virtual void doSeek(qint64 pos) = 0;
     virtual int setDeviceVolume(int mmfVolume) = 0;
     virtual int openFile(RFile& file) = 0;
+    virtual int openUrl(const QString& url) = 0;
     virtual void close() = 0;
     virtual void changeState(PrivateState newState);
 
diff --git a/src/3rdparty/phonon/mmf/audioplayer.cpp b/src/3rdparty/phonon/mmf/audioplayer.cpp
index 2ce10db..2d618b8 100644
--- a/src/3rdparty/phonon/mmf/audioplayer.cpp
+++ b/src/3rdparty/phonon/mmf/audioplayer.cpp
@@ -124,6 +124,17 @@ int MMF::AudioPlayer::openFile(RFile& file)
     return err;
 }
 
+int MMF::AudioPlayer::openUrl(const QString& /*url*/)
+{
+    // Streaming playback is generally not supported by the implementation
+    // of the audio player API, so we use CVideoPlayerUtility for both
+    // audio and video streaming.
+    Utils::panic(AudioUtilityUrlNotSupported);
+
+    // Silence warning
+    return 0;
+}
+
 void MMF::AudioPlayer::close()
 {
     m_player->Close();
diff --git a/src/3rdparty/phonon/mmf/audioplayer.h b/src/3rdparty/phonon/mmf/audioplayer.h
index bc60076..4674afc 100644
--- a/src/3rdparty/phonon/mmf/audioplayer.h
+++ b/src/3rdparty/phonon/mmf/audioplayer.h
@@ -63,6 +63,7 @@ public:
     virtual void doSeek(qint64 milliseconds);
     virtual int setDeviceVolume(int mmfVolume);
     virtual int openFile(RFile& file);
+    virtual int openUrl(const QString& url);
     virtual void close();
 
     // MediaObjectInterface
diff --git a/src/3rdparty/phonon/mmf/mediaobject.cpp b/src/3rdparty/phonon/mmf/mediaobject.cpp
index 6158ca1..ca3e837 100644
--- a/src/3rdparty/phonon/mmf/mediaobject.cpp
+++ b/src/3rdparty/phonon/mmf/mediaobject.cpp
@@ -253,7 +253,10 @@ void MMF::MediaObject::createPlayer(const MediaSource &source)
                 mediaType = fileMediaType(url.toLocalFile());
             }
             else {
-                errorMessage = QLatin1String("Network streaming not supported yet");
+                // Streaming playback is generally not supported by the implementation
+                // of the audio player API, so we use CVideoPlayerUtility for both
+                // audio and video streaming.
+                mediaType = MediaTypeVideo;
             }
         }
         break;
diff --git a/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp b/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp
index 0a1c78f..62bbdef 100644
--- a/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp
+++ b/src/3rdparty/phonon/mmf/mmf_videoplayer.cpp
@@ -172,6 +172,12 @@ int MMF::VideoPlayer::openFile(RFile& file)
     return err;
 }
 
+int MMF::VideoPlayer::openUrl(const QString& url)
+{
+    TRAPD(err, m_player->OpenUrlL(qt_QString2TPtrC(url)));
+    return err;
+}
+
 void MMF::VideoPlayer::close()
 {
     m_player->Close();
diff --git a/src/3rdparty/phonon/mmf/mmf_videoplayer.h b/src/3rdparty/phonon/mmf/mmf_videoplayer.h
index abb1da8..7c42991 100644
--- a/src/3rdparty/phonon/mmf/mmf_videoplayer.h
+++ b/src/3rdparty/phonon/mmf/mmf_videoplayer.h
@@ -54,6 +54,7 @@ public:
     virtual void doSeek(qint64 milliseconds);
     virtual int setDeviceVolume(int mmfVolume);
     virtual int openFile(RFile& file);
+    virtual int openUrl(const QString& url);
     virtual void close();
 
     // MediaObjectInterface
diff --git a/src/3rdparty/phonon/mmf/utils.h b/src/3rdparty/phonon/mmf/utils.h
index 60c03a5..56ccafc 100644
--- a/src/3rdparty/phonon/mmf/utils.h
+++ b/src/3rdparty/phonon/mmf/utils.h
@@ -38,7 +38,8 @@ namespace MMF
 enum PanicCode {
     InvalidStatePanic               = 1,
     InvalidMediaTypePanic           = 2,
-    InvalidBackendInterfaceClass    = 3
+    InvalidBackendInterfaceClass    = 3,
+    AudioUtilityUrlNotSupported     = 4
 };
 
 class Utils