File _service:tar_git:001-configure-pipeline-properties.patch of Package qtmultimedia

- debug info on used flags
- load playbin properties from settings
- example .config/qtmultimedia/settings.conf
  [playbin]
  buffer-size=256000
  ;buffer-duration=5000000
  ;ring-buffer-max-size=64000
  ;connection-speed=128000
  flags=0x182
diff -u -r upstream\src\plugins\gstreamer\audiodecoder\audiodecoder.pro qtmultimedia-mer-5.6\src\plugins\gstreamer\audiodecoder\audiodecoder.pro
--- src/plugins/gstreamer/audiodecoder/audiodecoder.pro	Fri Sep 29 20:38:02 2017
+++ src/plugins/gstreamer/audiodecoder/audiodecoder.pro	Fri Sep 29 22:24:11 2017
@@ -19,6 +19,8 @@
 OTHER_FILES += \
     audiodecoder.json
 
+CONFIG += console
+
 PLUGIN_TYPE = mediaservice
 PLUGIN_CLASS_NAME = QGstreamerAudioDecoderServicePlugin
 load(qt_plugin)
diff -u -r upstream\src\plugins\gstreamer\audiodecoder\qgstreameraudiodecodersession.cpp qtmultimedia-mer-5.6\src\plugins\gstreamer\audiodecoder\qgstreameraudiodecodersession.cpp
--- src/plugins/gstreamer/audiodecoder/qgstreameraudiodecodersession.cpp	Fri Sep 29 20:38:02 2017
+++ src/plugins/gstreamer/audiodecoder/qgstreameraudiodecodersession.cpp	Fri Sep 29 20:55:26 2017
@@ -51,6 +51,8 @@
 
 #define MAX_BUFFERS_IN_QUEUE 4
 
+#include <iostream>
+
 QT_BEGIN_NAMESPACE
 
 typedef enum {
@@ -85,9 +87,15 @@
      m_durationQueries(0)
 {
     // Create pipeline here
+    std::cerr << "QGstreamerAudioDecoderSession - try to make " << QT_GSTREAMER_PLAYBIN_ELEMENT_NAME;
     m_playbin = gst_element_factory_make(QT_GSTREAMER_PLAYBIN_ELEMENT_NAME, NULL);
 
     if (m_playbin != 0) {
+
+        int flags = GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_AUDIO;
+        QByteArray envFlags = qgetenv("QT_GSTREAMER_PLAYBIN_FLAGS");
+
+        g_object_set(G_OBJECT(m_playbin), "flags", flags, NULL);
         // Sort out messages
         m_bus = gst_element_get_bus(m_playbin);
         m_busHelper = new QGstreamerBusHelper(m_bus, this);
@@ -527,12 +535,24 @@
     int flags = 0;
     if (m_playbin) {
         g_object_get(G_OBJECT(m_playbin), "flags", &flags, NULL);
-        // make sure not to use GST_PLAY_FLAG_NATIVE_AUDIO unless desired
-        // it prevents audio format conversion
         flags &= ~(GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_NATIVE_VIDEO | GST_PLAY_FLAG_TEXT | GST_PLAY_FLAG_VIS | GST_PLAY_FLAG_NATIVE_AUDIO);
-        flags |= GST_PLAY_FLAG_AUDIO;
+
+        QByteArray envFlags = qgetenv("QT_GSTREAMER_PLAYBIN_FLAGS");
+        if (!envFlags.isEmpty()) {
+            bool ok;
+            flags |= envFlags.toInt(&ok, 0);
+            std::cerr << "QGstreamerPlayerSession - using configured flags: 0x" << std::hex << flags;
+#if !GST_CHECK_VERSION(1,0,0)
+        } else {
+            std::cerr << "QGstreamerPlayerSession - using fixed flags";
+            // make sure not to use GST_PLAY_FLAG_NATIVE_AUDIO unless desired
+            // it prevents audio format conversion
+            flags |= GST_PLAY_FLAG_AUDIO;
+#endif
+        }
+
         if (wantNativeAudio)
-            flags |= GST_PLAY_FLAG_NATIVE_AUDIO;
+          flags |= GST_PLAY_FLAG_NATIVE_AUDIO;
         g_object_set(G_OBJECT(m_playbin), "flags", flags, NULL);
     }
 }
diff -u -r upstream\src\plugins\gstreamer\mediaplayer\mediaplayer.pro qtmultimedia-mer-5.6\src\plugins\gstreamer\mediaplayer\mediaplayer.pro
--- src/plugins/gstreamer/mediaplayer/mediaplayer.pro	Fri Sep 29 20:38:05 2017
+++ src/plugins/gstreamer/mediaplayer/mediaplayer.pro	Fri Sep 29 22:24:29 2017
@@ -25,6 +25,8 @@
 OTHER_FILES += \
     mediaplayer.json
 
+CONFIG += console
+
 PLUGIN_TYPE = mediaservice
 PLUGIN_CLASS_NAME = QGstreamerPlayerServicePlugin
 load(qt_plugin)
diff -u -r upstream\src\plugins\gstreamer\mediaplayer\qgstreamerplayersession.cpp qtmultimedia-mer-5.6\src\plugins\gstreamer\mediaplayer\qgstreamerplayersession.cpp
--- src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp	Fri Sep 29 20:38:05 2017
+++ src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.cpp	Fri Sep 29 20:55:41 2017
@@ -56,6 +56,9 @@
 #include <QtCore/qdir.h>
 #include <QtCore/qstandardpaths.h>
 
+#include <iostream>
+#include <QSettings>
+
 //#define DEBUG_PLAYBIN
 //#define DEBUG_VO_BIN_DUMP
 
@@ -145,7 +148,15 @@
     Q_ASSERT(result == TRUE);
     Q_UNUSED(result);
 
-    m_playbin = gst_element_factory_make(QT_GSTREAMER_PLAYBIN_ELEMENT_NAME, NULL);
+    // any config? (.config/qtmultimedia/settings.conf)
+    QSettings settings("qtmultimedia", "settings");
+
+    QString playbinElementName = QT_GSTREAMER_PLAYBIN_ELEMENT_NAME;
+    if(settings.contains("playbin/playbin-name")) 
+        playbinElementName = settings.value("playbin/playbin-name").toString();
+    m_playbin = gst_element_factory_make(playbinElementName.toStdString().c_str(), NULL);
+    qInfo() << "QGstreamerPlayerSession - created " << playbinElementName;
+
     if (m_playbin) {
         //GST_PLAY_FLAG_NATIVE_VIDEO omits configuration of ffmpegcolorspace and videoscale,
         //since those elements are included in the video output bin when necessary.
@@ -156,16 +167,51 @@
         int flags = GST_PLAY_FLAG_VIDEO | GST_PLAY_FLAG_AUDIO;
         QByteArray envFlags = qgetenv("QT_GSTREAMER_PLAYBIN_FLAGS");
         if (!envFlags.isEmpty()) {
-            flags |= envFlags.toInt();
+            bool ok;
+            flags |= envFlags.toInt(&ok, 0);
+            qInfo("QGstreamerPlayerSession - Loaded from QT_GSTREAMER_PLAYBIN_FLAGS flags: 0x%0X", flags);
 #if !GST_CHECK_VERSION(1,0,0)
         } else {
             flags |= GST_PLAY_FLAG_NATIVE_VIDEO;
 #endif
         }
 #endif
+
+        if(settings.contains("playbin/buffer-duration")) {
+            int bufferDuration = settings.value("playbin/buffer-duration").toInt();  
+            g_object_set(G_OBJECT(m_playbin), "buffer-duration", bufferDuration, NULL);
+            qInfo() << "QGstreamerPlayerSession - Loaded from settings buffer-duration=" << bufferDuration;
+        }
+        if(settings.contains("playbin/buffer-size")) {
+            int bufferSize = settings.value("playbin/buffer-size").toInt();  
+            g_object_set(G_OBJECT(m_playbin), "buffer-size", bufferSize, NULL);
+            qInfo() << "QGstreamerPlayerSession - Loaded from settings buffer-size=" << bufferSize;
+        }
+        if(settings.contains("playbin/ring-buffer-max-size")) {
+            int ringBufferMaxSize = settings.value("playbin/ring-buffer-max-size").toInt();  
+            g_object_set(G_OBJECT(m_playbin), "ring-buffer-max-size", ringBufferMaxSize, NULL);
+            qInfo() << "QGstreamerPlayerSession - Loaded from settings ring-buffer-max-size=" << ringBufferMaxSize;
+        }
+        if(settings.contains("playbin/connection-speed")) {
+            int speed = settings.value("playbin/connection-speed").toInt();  
+            g_object_set(G_OBJECT(m_playbin), "connection-speed", speed, NULL);
+            qInfo() << "QGstreamerPlayerSession - Loaded from settings connection-speed=" << speed;
+        }
+        if(settings.contains("playbin/flags")) {
+            QString flagsString = settings.value("playbin/flags").toString();
+            bool ok;
+            flags = flagsString.toInt(&ok, 0);  
+            qInfo("QGstreamerPlayerSession - Loaded from settings flags: 0x%0X", flags);
+        }
+
         g_object_set(G_OBJECT(m_playbin), "flags", flags, NULL);
 
-        GstElement *audioSink = gst_element_factory_make("autoaudiosink", "audiosink");
+        QString audioSinkName = "autoaudiosink";
+        if(settings.contains("playbin/audiosink-name"))
+          audioSinkName = settings.value("playbin/audiosink-name").toString();
+        GstElement *audioSink = gst_element_factory_make(audioSinkName.toStdString().c_str(), "audiosink");
+        qInfo() << "QGstreamerPlayerSession - Created audiosink " << audioSinkName;
+
         if (audioSink) {
             if (usePlaybinVolume()) {
                 m_audioSink = audioSink;