diff --git a/effects/effect.cpp b/effects/effect.cpp
index c1f5c01d1..0541823c8 100644
--- a/effects/effect.cpp
+++ b/effects/effect.cpp
@@ -150,6 +150,10 @@ void Effect::process_audio(uint8_t*, int) {}
 
 EffectRow::EffectRow(Effect *parent, QGridLayout *uilayout, const QString &n, int row) : parent_effect(parent), ui(uilayout), name(n), ui_row(row) {
 	ui->addWidget(new QLabel(name), row, 0);
+
+	/*keyframe_enable = new CheckboxEx();
+	keyframe_enable->setToolTip("Enable Keyframes");
+	ui->addWidget(keyframe_enable, row, 5);*/
 }
 
 EffectField* EffectRow::add_field(int type, int colspan) {
diff --git a/effects/effect.h b/effects/effect.h
index a7a023958..182cdfabc 100644
--- a/effects/effect.h
+++ b/effects/effect.h
@@ -13,6 +13,7 @@ struct Clip;
 class QXmlStreamReader;
 class QXmlStreamWriter;
 class Effect;
+class CheckboxEx;
 
 #define EFFECT_TYPE_INVALID 0
 #define EFFECT_TYPE_VIDEO 1
@@ -98,6 +99,8 @@ private:
 	QString name;
 	int ui_row;
 	QVector<EffectField*> fields;
+
+	CheckboxEx* keyframe_enable;
 };
 
 class Effect : public QObject {
@@ -128,6 +131,8 @@ public:
 	bool enable_pre_gl;
 	bool enable_post_gl;
 
+	const char* ffmpeg_filter;
+
 	virtual void process_gl(int* anchor_x, int* anchor_y);
     virtual void post_gl();
     virtual void process_audio(quint8* samples, int nb_bytes);
diff --git a/effects/inverteffect.cpp b/effects/inverteffect.cpp
index 6c4153295..25a8fe86d 100644
--- a/effects/inverteffect.cpp
+++ b/effects/inverteffect.cpp
@@ -9,6 +9,8 @@
 #include <QXmlStreamAttributes>
 
 InvertEffect::InvertEffect(Clip* c) : Effect(c, EFFECT_TYPE_VIDEO, VIDEO_INVERT_EFFECT) {
+	enable_ffmpeg = true;
+	ffmpeg_filter = "negate";
 
 	EffectRow* amount_row = add_row("Amount:");
 	amount_val = amount_row->add_field(EFFECT_FIELD_DOUBLE);
diff --git a/playback/cacher.cpp b/playback/cacher.cpp
index ee3ce6398..d43d4f0e3 100644
--- a/playback/cacher.cpp
+++ b/playback/cacher.cpp
@@ -414,14 +414,24 @@ void open_clip_worker(Clip* clip) {
 					inputs->pad_idx = 0;
 					inputs->next = 0;
 
-					ret = avfilter_graph_parse_ptr(clip->filter_graph, "null", &inputs, &outputs, NULL);
+					/*ret = avfilter_graph_config(clip->filter_graph, NULL);
 					if (ret < 0) {
-						qDebug() << "[ERROR] Couldn't set NEGATE filter";
+						qDebug() << "[ERROR] AVFilter config failed";
+					}*/
+
+					ret = avfilter_graph_parse_ptr(clip->filter_graph, "gblur=sigma=20:steps=4", &inputs, &outputs, NULL);
+					if (ret < 0) {
+						qDebug() << "[ERROR] Couldn't parse filters." << ret;
 					} else {
 						ret = avfilter_graph_config(clip->filter_graph, NULL);
 						if (ret < 0) {
-							qDebug() << "[ERROR] AVFilter config failed";
+							qDebug() << "[ERROR] AVFilter config failed." << ret;
 						}
+
+						/*ret = avfilter_graph_send_command(clip->filter_graph, "gblur", "enable", "2", NULL, 0, 0);
+						if (ret < 0) {
+							qDebug() << "[ERROR] Failed to send graph command." << ret << AVERROR(ENOSYS);
+						}*/
 					}
 				}
 			}
diff --git a/project/undo.cpp b/project/undo.cpp
index 905887ffe..d8757f32e 100644
--- a/project/undo.cpp
+++ b/project/undo.cpp
@@ -34,6 +34,10 @@ QUndoStack undo_stack;
 #define TA_MODIFY_TRANSITION 11
 #define TA_DELETE_TRANSITION 12
 
+extern "C" {
+	#include "libavfilter/avfilter.h"
+}
+
 TimelineAction::TimelineAction() :
     done(false),
     change_seq(false),
@@ -423,7 +427,8 @@ void TimelineAction::redo() {
         {
             Clip* c = sequences.at(i)->get_clip(clips.at(i));
             old_values[i] = c->effects.size();
-            c->effects.append(create_effect(new_values.at(i), c));
+			Effect* e = create_effect(new_values.at(i), c);
+			c->effects.append(e);
         }
             break;
 		case TA_ADD_TRANSITION: