Allowing pausing the pipeline from the controller

Igalia · Mar 29, 2012 · 1a1f9cf · 1a1f9cf
1 parent cc38946
commit 1a1f9cf
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Showing 4 changed files with 16 additions and 0 deletions.
diff --git a/src/controller.cpp b/src/controller.cpp
@@ -88,6 +88,12 @@ void Controller::stopPipeline()
     ResourceManager::instance()->releaseResources();
 }
 
+void Controller::pausePipeline()
+{
+    m_pipeline->pause();
+    setPipelineReady(false);
+}
+
 void Controller::setupEffects()
 {
     EffectManager::setup(this);

diff --git a/src/controller.h b/src/controller.h
@@ -91,6 +91,7 @@ class Controller : public QDeclarativeItem
 public slots:
     void startPipeline();
     void stopPipeline();
+    void pausePipeline();
     void startRecording();
     void stopRecording();
     void shutterClicked();

diff --git a/src/pipeline.cpp b/src/pipeline.cpp
@@ -197,6 +197,11 @@ void Pipeline::stop()
     gst_element_set_state(camerabin, GST_STATE_NULL);
 }
 
+void Pipeline::pause()
+{
+    gst_element_set_state(camerabin, GST_STATE_PAUSED);
+}
+
 void Pipeline::prepare()
 {
     gst_element_set_state(camerabin, GST_STATE_READY);
@@ -391,6 +396,9 @@ void Pipeline::handleBusMessage(GstMessage *message)
             if (GST_ELEMENT(GST_MESSAGE_SRC(message)) == camerabin) {
                 GstState oldstate, newstate, pending;
                 gst_message_parse_state_changed(message, &oldstate, &newstate, &pending);
+                qDebug() << Q_FUNC_INFO << gst_element_state_get_name(oldstate)
+                         << "->" << gst_element_state_get_name(newstate) << "=>"
+                         << gst_element_state_get_name(pending);
                 if (newstate==GST_STATE_PLAYING) {
                     QMetaObject::invokeMethod(this, "pipelinePlaying", Qt::QueuedConnection);
                 }

diff --git a/src/pipeline.h b/src/pipeline.h
@@ -66,6 +66,7 @@ class Pipeline : public QObject
     void setDevice(const ControllerSettings::Device value);
     void start();
     void stop();
+    void pause();
     void prepare();
     void startRecording();
     void stopRecording();