From 6d40928453b0d2a772cc621eb91c07bb2703fba4 Mon Sep 17 00:00:00 2001
From: Mohammed Sameer <msameer@foolab.org>
Date: Sat, 22 Dec 2012 02:22:09 +0200
Subject: [PATCH] Set viewfinder-filters

---
 lib/qtcamconfig.cpp |  4 ++++
 lib/qtcamconfig.h   |  3 +++
 lib/qtcamdevice.cpp |  3 ++-
 lib/qtcamdevice_p.h | 35 +++++++++++++++++++++++++++++++++++
 4 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/lib/qtcamconfig.cpp b/lib/qtcamconfig.cpp
index 89ffbd3..930909b 100644
--- a/lib/qtcamconfig.cpp
+++ b/lib/qtcamconfig.cpp
@@ -211,3 +211,7 @@ QString QtCamConfig::videoRecordingEndedSound() const {
 QString QtCamConfig::autoFocusAcquiredSound() const {
   return d_ptr->conf->value("sounds/autoFocusAcquired").toString();
 }
+
+QStringList QtCamConfig::viewfinderFilters() const {
+  return d_ptr->conf->value("viewfinder-filters/elements").toStringList();
+}
diff --git a/lib/qtcamconfig.h b/lib/qtcamconfig.h
index bdfbc11..48a4b4c 100644
--- a/lib/qtcamconfig.h
+++ b/lib/qtcamconfig.h
@@ -26,6 +26,7 @@
 #include <QObject>
 #include "qtcamimagesettings.h"
 #include "qtcamvideosettings.h"
+#include <QStringList>
 
 #define SCANNER_TYPE_V4L2                     "v4l2"
 #define SCANNER_TYPE_ENUM                     "enum"
@@ -74,6 +75,8 @@ public:
   QString videoRecordingEndedSound() const;
   QString autoFocusAcquiredSound() const;
 
+  QStringList viewfinderFilters() const;
+
 private:
   QtCamConfigPrivate *d_ptr;
 };
diff --git a/lib/qtcamdevice.cpp b/lib/qtcamdevice.cpp
index 4aa1c19..bb5becc 100644
--- a/lib/qtcamdevice.cpp
+++ b/lib/qtcamdevice.cpp
@@ -64,10 +64,11 @@ QtCamDevice::QtCamDevice(QtCamConfig *config, const QString& name,
   g_object_set(d_ptr->cameraBin, "flags", flags, NULL);
 
   d_ptr->setAudioCaptureCaps();
+  d_ptr->addViewfinderFilters();
 
   // TODO: audio bitrate
   // TODO: video bitrate
-  // TODO: filters
+
   // TODO: custom properties for jifmux, mp4mux, audio encoder, video encoder, sink & video source
   d_ptr->listener = new QtCamGStreamerMessageListener(gst_element_get_bus(d_ptr->cameraBin),
 						      d_ptr, this);
diff --git a/lib/qtcamdevice_p.h b/lib/qtcamdevice_p.h
index 45205c4..2e72654 100644
--- a/lib/qtcamdevice_p.h
+++ b/lib/qtcamdevice_p.h
@@ -29,6 +29,7 @@
 #include "qtcamviewfinder.h"
 #include "qtcamdevice.h"
 #include "qtcammode.h"
+#include "qtcamanalysisbin.h"
 
 class QtCamGStreamerMessageListener;
 class QtCamMode;
@@ -176,6 +177,10 @@ public:
     }
   }
 
+  void addViewfinderFilters() {
+    addElements("viewfinder-filter", conf->viewfinderFilters());
+  }
+
   bool isWrapperReady() {
     if (!wrapperVideoSource) {
       return false;
@@ -207,6 +212,36 @@ public:
 			      Q_ARG(bool, d->q_ptr->isIdle()));
   }
 
+  void addElements(const char *prop, const QStringList& elements) {
+    QList<GstElement *> list;
+
+    if (elements.isEmpty()) {
+      return;
+    }
+
+    foreach (const QString& element, elements) {
+      GstElement *elem = gst_element_factory_make(element.toUtf8().constData(), NULL);
+      if (!elem) {
+	qWarning() << "Failed to create element" << element;
+      }
+      else {
+	list << elem;
+      }
+    }
+
+    if (list.isEmpty()) {
+      return;
+    }
+
+    GstElement *bin = qt_cam_analysis_bin_create(list, prop);
+    if (!bin) {
+      qWarning() << "Failed to create bin for" << prop;
+      return;
+    }
+
+    g_object_set(cameraBin, prop, bin, NULL);
+  }
+
 #if 0
   void resetCapabilities() {
     g_object_set(cameraBin, "zoom", 1.0, NULL);
-- 
2.25.1