diff --git a/veejay-current/veejay-server/libplugger/frei0r-loader.c b/veejay-current/veejay-server/libplugger/frei0r-loader.c
index 84fd9ae9..fd32c823 100644
--- a/veejay-current/veejay-server/libplugger/frei0r-loader.c
+++ b/veejay-current/veejay-server/libplugger/frei0r-loader.c
@@ -131,7 +131,6 @@ static inline int frei0r_param_set_double(f0r_set_param_value_f q,void *plugin,
 static inline int frei0r_param_get_bool(f0r_get_param_value_f q, void *plugin, int seq_no)
 {
 	double b;
-	f0r_param_t param;
 	(*q)( plugin, (void **) &b, seq_no );
 	if( b!= 0.0 && b!=1. ) {
 		b = 0.0;
diff --git a/veejay-current/veejay-server/libplugger/plugload.c b/veejay-current/veejay-server/libplugger/plugload.c
index 2544020e..c1c9b6f6 100644
--- a/veejay-current/veejay-server/libplugger/plugload.c
+++ b/veejay-current/veejay-server/libplugger/plugload.c
@@ -837,8 +837,6 @@ void	plug_build_name_space( int fx_id, void *fx_instance, void *data, int entry_
 
 void	plug_print_all()
 {
-	int n;
-	int x=0;
 	/*for(n = 0; n < index_ ; n ++ )
 	{
 		char *fx_name = plug_get_name(n);
diff --git a/veejay-current/veejay-server/libvje/effects/alphaselect.c b/veejay-current/veejay-server/libvje/effects/alphaselect.c
index dc80bbbd..d479ca4c 100644
--- a/veejay-current/veejay-server/libvje/effects/alphaselect.c
+++ b/veejay-current/veejay-server/libvje/effects/alphaselect.c
@@ -80,7 +80,7 @@ void alphaselect_apply( VJFrame *frame, int width,
 		   int height, int i_angle, int r, int g,
 		   int b, int swap)
 {
-    int8_t *fg_cb, *fg_cr;
+    uint8_t *fg_cb, *fg_cr;
     int accept_angle_tg;
     int cb, cr;
     float kg1, tmp, aa = 255.0f, bb = 255.0f, _y = 0;
@@ -91,7 +91,7 @@ void alphaselect_apply( VJFrame *frame, int width,
 	uint8_t *Cb = frame->data[1];
 	uint8_t *Cr = frame->data[2];
 	uint8_t *A  = frame->data[3];
-	int iy,iu,iv;
+	int iy=0,iu=128,iv=128;
 	
 	_rgb2yuv(r,g,b,iy,iu,iv);
 	_y = (float) iy;
diff --git a/veejay-current/veejay-server/libvje/effects/alphaselect2.c b/veejay-current/veejay-server/libvje/effects/alphaselect2.c
index 7cd14382..579fd238 100644
--- a/veejay-current/veejay-server/libvje/effects/alphaselect2.c
+++ b/veejay-current/veejay-server/libvje/effects/alphaselect2.c
@@ -98,7 +98,7 @@ void alphaselect2_apply( VJFrame *frame, int width,
 	uint8_t *Cb = frame->data[1];
 	uint8_t *Cr = frame->data[2];
 	uint8_t *A  = frame->data[3];
-	int iy,iu,iv;
+	int iy=0,iu=128,iv=128;
 	_rgb2yuv(r,g,b,iy,iu,iv);
 
 	const double dtola = tola * 0.1f;
diff --git a/veejay-current/veejay-server/libvje/effects/bathroom.c b/veejay-current/veejay-server/libvje/effects/bathroom.c
index afb816b4..12f64c13 100644
--- a/veejay-current/veejay-server/libvje/effects/bathroom.c
+++ b/veejay-current/veejay-server/libvje/effects/bathroom.c
@@ -75,7 +75,6 @@ static int n__ = 0;
 static int N__ = 0;
 int bathroom_malloc(int width, int height)
 {
-	int i;
    	bathroom_frame[0] = (uint8_t*)vj_malloc(sizeof(uint8_t) * RUP8(width*height * 4));
 	if(!bathroom_frame[0])
 		return 0;
diff --git a/veejay-current/veejay-server/libvje/effects/boids.c b/veejay-current/veejay-server/libvje/effects/boids.c
index bb0d5f86..02b4c30d 100644
--- a/veejay-current/veejay-server/libvje/effects/boids.c
+++ b/veejay-current/veejay-server/libvje/effects/boids.c
@@ -160,7 +160,6 @@ static void	blob_init_( blob_t *b , int blob_id, int w , int h)
 int	boids_malloc(int w, int h)
 {
 	int j,i;
-	double frac;
 	int dist_sqrt;
 
 	if(blob_radius_ <= 0)
@@ -190,7 +189,6 @@ int	boids_malloc(int w, int h)
 			dist_sqrt = i * i + j * j;
 			if( dist_sqrt < blob_sradius_ )
 			{
-				frac = (double) (sqrt(dist_sqrt)) / (double) blob_sradius_;
 				blob_[i + blob_radius_][j + blob_radius_] = 0xff;
 			}
 			else
diff --git a/veejay-current/veejay-server/libvje/effects/chromapalette.c b/veejay-current/veejay-server/libvje/effects/chromapalette.c
index a0c13173..6815961d 100644
--- a/veejay-current/veejay-server/libvje/effects/chromapalette.c
+++ b/veejay-current/veejay-server/libvje/effects/chromapalette.c
@@ -106,7 +106,7 @@ void chromapalette_apply(VJFrame *frame, int width, int height, int angle, int r
 	uint8_t *Cr = frame->data[2];
 	uint8_t U;
 	uint8_t V;
-	int	y,u,v;
+	int	y=0,u=128,v=128;
  	const float cb_mul = 0.492;
 	const float cr_mul = 0.877;
 	
diff --git a/veejay-current/veejay-server/libvje/effects/dices.c b/veejay-current/veejay-server/libvje/effects/dices.c
index 79a1baac..3c58f537 100644
--- a/veejay-current/veejay-server/libvje/effects/dices.c
+++ b/veejay-current/veejay-server/libvje/effects/dices.c
@@ -128,7 +128,7 @@ void dices_apply( void* data, VJFrame *frame, int width, int height,
 		 int cube_bits)
 {
 
-    int i = 0, map_x, map_y, map_i = 0, base, dx, dy, di;
+    int i = 0, map_x, map_y, map_i = 0, base, dx, dy, di=0;
  	uint8_t *Y = frame->data[0];
 	uint8_t *Cb = frame->data[1];
 	uint8_t *Cr = frame->data[2];
diff --git a/veejay-current/veejay-server/libvje/effects/dummy.c b/veejay-current/veejay-server/libvje/effects/dummy.c
index d60b476b..3038d19a 100644
--- a/veejay-current/veejay-server/libvje/effects/dummy.c
+++ b/veejay-current/veejay-server/libvje/effects/dummy.c
@@ -66,9 +66,9 @@ void dummy_apply( VJFrame *frame, int width, int height, int color)
 
 void dummy_rgb_apply( VJFrame *frame, int width, int height, int r,int g, int b)
 {
-    	const int len = frame->len;
+   	const int len = frame->len;
 	const int uv_len = frame->uv_len;
-	int colorCb, colorCr, colorY;
+	int colorCb=128, colorCr=128, colorY=0;
 
  	uint8_t *Y = frame->data[0];
 	uint8_t *Cb = frame->data[1];
diff --git a/veejay-current/veejay-server/libvje/effects/flip.c b/veejay-current/veejay-server/libvje/effects/flip.c
index a7f8df71..383bd64e 100644
--- a/veejay-current/veejay-server/libvje/effects/flip.c
+++ b/veejay-current/veejay-server/libvje/effects/flip.c
@@ -20,8 +20,8 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <libvjmem/vjmem.h>
+#include "common.h"
 #include "flip.h"
-#include <stdlib.h>
 vj_effect *flip_init(int w, int h)
 {
 
diff --git a/veejay-current/veejay-server/libvje/effects/isolate.c b/veejay-current/veejay-server/libvje/effects/isolate.c
index d9f71a1a..47e878b0 100644
--- a/veejay-current/veejay-server/libvje/effects/isolate.c
+++ b/veejay-current/veejay-server/libvje/effects/isolate.c
@@ -67,9 +67,8 @@ void isolate_apply( VJFrame *frame, int width,
 		   int height, int i_angle, int r, int g,
 		   int b, int opacity)
 {
-
-	int8_t *fg_cb, *fg_cr;
-    int accept_angle_tg, accept_angle_ctg;
+	uint8_t *fg_cb, *fg_cr;
+    int accept_angle_tg;
     int cb, cr;
     float kg1, tmp, aa = 255, bb = 255, _y = 0;
     float angle = (float) i_angle / 100.0f;
@@ -90,7 +89,6 @@ void isolate_apply( VJFrame *frame, int width,
    
     /* obtain coordinate system for cb / cr */
     accept_angle_tg = (int)( 15.0f * tanf(M_PI * angle / 180.0f));
-    accept_angle_ctg= (int)( 15.0f / tanf(M_PI * angle / 180.0f));
  
     tmp = 1 / kg1;
 
diff --git a/veejay-current/veejay-server/libvje/effects/radcor.c b/veejay-current/veejay-server/libvje/effects/radcor.c
index 37f6a627..a946f9e8 100644
--- a/veejay-current/veejay-server/libvje/effects/radcor.c
+++ b/veejay-current/veejay-server/libvje/effects/radcor.c
@@ -179,7 +179,7 @@ void radcor_apply( VJFrame *frame, int width, int height, int alpaX, int alpaY,
 
 	if( alpha) {
 		for( i = 0; i < len; i ++ ) {
-			A[i * width + j ] = Ai[ Map[i * width + j] ];
+			A[i] = Ai[ Map[i] ];
 		}
 	}
 
diff --git a/veejay-current/veejay-server/libvje/effects/rgbkey.c b/veejay-current/veejay-server/libvje/effects/rgbkey.c
index 0f024fe6..ab495db1 100644
--- a/veejay-current/veejay-server/libvje/effects/rgbkey.c
+++ b/veejay-current/veejay-server/libvje/effects/rgbkey.c
@@ -209,7 +209,7 @@ void rgbkey_apply(VJFrame *frame, VJFrame *frame2, int width,int height, int tol
 	uint8_t *A = frame->data[3];
 	uint8_t *B = frame2->data[3];
 	const unsigned int len = frame->len;  
-	int iy,iu,iv;
+	int iy=0,iu=128,iv=128;
 	uint8_t *T = temp[0];	
 	uint8_t op0,op1;
 
diff --git a/veejay-current/veejay-server/libvje/effects/threshold.c b/veejay-current/veejay-server/libvje/effects/threshold.c
index 3e330bf6..dca8b647 100644
--- a/veejay-current/veejay-server/libvje/effects/threshold.c
+++ b/veejay-current/veejay-server/libvje/effects/threshold.c
@@ -94,7 +94,6 @@ void threshold_apply( VJFrame *frame, VJFrame *frame2,int width, int height, int
 	uint8_t *Cb2=frame2->data[1];
 	uint8_t *Cr2=frame2->data[2];
 
-	uint8_t *bmap = binary_img;
 	int len = frame->len;
 	softblur_apply( frame, width,height,0 );
 
diff --git a/veejay-current/veejay-server/libvje/effects/videoplay.c b/veejay-current/veejay-server/libvje/effects/videoplay.c
index cd93d022..e5928afc 100644
--- a/veejay-current/veejay-server/libvje/effects/videoplay.c
+++ b/veejay-current/veejay-server/libvje/effects/videoplay.c
@@ -84,9 +84,6 @@ static	int prepare_filmstrip(int film_length, int w, int h)
 
 	num_videos = film_length;
 
-	uint8_t val = 0;
-//	int inc = num_videos % 255;
-
 	for ( i = 0; i < num_videos; i ++ )
 	{
 		video_list[i] = vj_calloc(sizeof(picture_t));
@@ -101,7 +98,6 @@ static	int prepare_filmstrip(int film_length, int w, int h)
 				return 0;
 			veejay_memset(video_list[i]->data[j], (j==0 ? pixel_Y_lo_ : 128), picture_width *picture_height );
 		}
-	//	val+= inc;
 	}
 	frame_counter = 0;
 
diff --git a/veejay-current/veejay-server/libvje/effects/videowall.c b/veejay-current/veejay-server/libvje/effects/videowall.c
index 0ce99427..6052fc7c 100644
--- a/veejay-current/veejay-server/libvje/effects/videowall.c
+++ b/veejay-current/veejay-server/libvje/effects/videowall.c
@@ -60,7 +60,6 @@ vj_effect *videowall_init(int w, int h)
 static picture_t **photo_list = NULL;
 static int	   num_photos = 0;
 static int	  frame_counter = 0;
-static int	  frame_delay = 0;
 static int	  *offset_table_x = NULL;
 static int	  *offset_table_y = NULL;
 
diff --git a/veejay-current/veejay-server/libvje/transitions/fadecolor.c b/veejay-current/veejay-server/libvje/transitions/fadecolor.c
index 26125162..41e3b380 100644
--- a/veejay-current/veejay-server/libvje/transitions/fadecolor.c
+++ b/veejay-current/veejay-server/libvje/transitions/fadecolor.c
@@ -58,7 +58,7 @@ void colorfade_apply(VJFrame *frame, int width, int height, int opacity,
     unsigned int i, op0, op1;
     unsigned int len = width * height;
     uint8_t colorCb = 128, colorCr = 128;
-    uint8_t colorY;
+    uint8_t colorY=0;
     const int uv_len = frame->uv_len;
     uint8_t *Y = frame->data[0];
     uint8_t *Cb = frame->data[1];