diff --git a/veejay-current/veejay-server/libstream/v4l2utils.c b/veejay-current/veejay-server/libstream/v4l2utils.c
index 940f3e7c..472271dc 100644
--- a/veejay-current/veejay-server/libstream/v4l2utils.c
+++ b/veejay-current/veejay-server/libstream/v4l2utils.c
@@ -84,7 +84,6 @@
 #include <libavutil/avutil.h>
 #include <libavcodec/avcodec.h>
 //#include <pthread.h>
-#include <libavutil/pixdesc.h>
 typedef struct {
 		void *start;
 		size_t length;
@@ -320,8 +319,6 @@ static	int	v4l2_ffmpeg2v4l2( int pf)
 		default:
 #ifdef STRICT_CHECKING
 			assert( pf >= 0 );
-			veejay_msg(VEEJAY_MSG_WARNING, "v4l2: using BGR24 (default) for unhandled pixfmt '%s'",
-				av_pix_fmt_descriptors[ pf ] );
 #endif
 			return V4L2_PIX_FMT_BGR24;
 	}
@@ -905,15 +902,16 @@ void *v4l2open ( const char *file, const int input_channel, int host_fmt, int wi
 	int chan = v4l2_channel_choose( v, input_channel );
 	if(chan == -1) {
 		veejay_msg(0, "v4l2: Video device has no input channels ? What video device is that?");
-		free(v);
-		close(fd);
-		return NULL;
+		chan = 0;
+	//	free(v);
+	//	close(fd);
+	//	return NULL;
 	}
 	if( -1 == vioctl( fd, VIDIOC_S_INPUT, &chan )) {
 		int lvl = 0;
 		if( errno == EINVAL )
 			lvl = VEEJAY_MSG_WARNING;
-		veejay_msg(0, "v4l2: VIDIOC_S_INPUT failed with %s, arg was %x", strerror(errno),chan);
+		veejay_msg(lvl, "v4l2: VIDIOC_S_INPUT failed with %s, arg was %x", strerror(errno),chan);
 		if( errno != EINVAL ) {
 			free(v);
 			close(fd);
@@ -925,9 +923,9 @@ void *v4l2open ( const char *file, const int input_channel, int host_fmt, int wi
 	v->input.index = chan;
 	if( -1 == vioctl( fd, VIDIOC_ENUMINPUT, &(v->input)) ) {
 		veejay_msg(0, "v4l2: VIDIOC_ENUMINPUT failed with %s", strerror(errno));
-		free(v);
-		close(fd);
-		return NULL;
+		//free(v);
+		//close(fd);
+		//return NULL;
 	}
 
 
@@ -991,6 +989,8 @@ void *v4l2open ( const char *file, const int input_channel, int host_fmt, int wi
 									 v->buffer.m.offset );
 		
 			if( MAP_FAILED == v->buffers[i].start ) {
+				veejay_msg(0,  "v4l2: mmap( NULL, %d , PROT_READ|PROT_WRITE , MAP_SHARED , %d, %d ) failed.",
+					v->buffer.length,fd, v->buffer.m.offset );
 		//	int k;
 		//	for( k = 0; k < i; k ++ ) 
 		//		munmap( v->buffer[k].start, v->buffer[k].length );
@@ -1061,11 +1061,6 @@ v4l2_rw_fallback:
 		v->sizeimage = v->format.fmt.pix.sizeimage;
 		v->buffers = (bufs*) calloc( 1, sizeof(*v->buffers));
 		veejay_msg(VEEJAY_MSG_DEBUG,"v4l2: read/write buffer size is %d bytes", v->format.fmt.pix.sizeimage );
-		if(v->is_jpeg) {
-			veejay_msg(VEEJAY_MSG_DEBUG, "v4l2: requested format %s -> %s, %d x %d",
-					&(v->format.fmt.pix.pixelformat), av_pix_fmt_descriptors[ v->info->format ], 
-					v->format.fmt.pix.width, v->format.fmt.pix.height );
-		}
 
 		v->buffers[0].length = v->sizeimage;
 		v->buffers[0].start = malloc( v->sizeimage * 2 );
@@ -1279,6 +1274,7 @@ void	v4l2_close( void *d )
 {
 	v4l2info *v = (v4l2info*) d;
 	int i;
+	
 
 	if( v->rw == 0 ) {
 		if( -1 == vioctl( v->fd, VIDIOC_STREAMOFF, &(v->buftype)) ) {
@@ -1898,8 +1894,8 @@ static	void	*v4l2_grabber_thread( void *v )
 		for( c = 0; c < 4; c ++ )
 			v4l2->out_planes[c] = planes[c];
 
-	veejay_msg(VEEJAY_MSG_INFO, "v4l2: capture format: %d x %d (%s)",
-			v4l2->info->width,v4l2->info->height, av_pix_fmt_descriptors[ v4l2->info->format ].name );
+	veejay_msg(VEEJAY_MSG_INFO, "v4l2: capture format: %d x %d (%x)",
+			v4l2->info->width,v4l2->info->height, v4l2->info->format  );
 	
 	i->grabbing = 1;
 	i->retries  = max_retries;
@@ -1940,7 +1936,7 @@ static	void	*v4l2_grabber_thread( void *v )
 		if( err == -1 ) {
 			if( i->retries < 0 ) {
 				veejay_msg(0,"v4l2: giving up on this device, too many errors.");
-				i->stop = 1;
+				i->stop = 1;	
 				v4l2_close( v4l2 );
 				pthread_exit(NULL);
 				return NULL;
@@ -2063,18 +2059,16 @@ void *v4l2_thread_new( char *file, int channel, int host_fmt, int wid, int hei,
 	}
 
 	int ready     = 0;
-	int retries   = 50;
+	int retries   = 40;
 	//@ wait until thread is ready
-	while(1) {
-		usleep(100);
-		lock_(i);
+	while(retries) {
 		ready = i->grabbing;
 		if( i->stop ) {
 			ready = i->stop;
 		}
-		unlock_(i);
-		if(ready) 
-		 break;
+		if(ready)
+			break;	
+		usleep(1000);
 		retries--;
 	}
 
diff --git a/veejay-current/veejay-server/libvje/effects/chromamagick.c b/veejay-current/veejay-server/libvje/effects/chromamagick.c
index c7f4dd58..dab3e689 100644
--- a/veejay-current/veejay-server/libvje/effects/chromamagick.c
+++ b/veejay-current/veejay-server/libvje/effects/chromamagick.c
@@ -282,7 +282,7 @@ void chromamagic_addlum(VJFrame *frame, VJFrame *frame2, int width,
 void chromamagic_exclusive(VJFrame *frame, VJFrame *frame2, int width, int height, int op_a) {
     unsigned int i;
 	const int len = frame->len;
- 	uint8_t *Y = frame->data[0];
+	uint8_t *Y = frame->data[0];
 	uint8_t *Cb = frame->data[1];
 	uint8_t *Cr = frame->data[2];
 	uint8_t *Y2 = frame2->data[0];
@@ -294,29 +294,24 @@ void chromamagic_exclusive(VJFrame *frame, VJFrame *frame2, int width, int heigh
     const unsigned int o2 = 255 - a;
 
     for (i = 0; i < len; i++) {
-	a = Y[i];
-	b = Y2[i];
+		a = Y[i];
+		b = Y2[i];
+ 		c = a + (2 * b) - op_a;
+		Y[i] = CLAMP_Y(c - (( a * b ) >> 8 ));   
+    }	
+    for( i = 0; i < len ; i ++ ) {
+		a = Cb[i];
+		b = Cb2[i];
 
-	a *= o1;
-	b *= o2;
-	a = a >> 8;
-	b = b >> 8;	
+		c = a + (2 * b);
+		Cb[i] = CLAMP_UV(c - 0xff);
 
-	Y[i] = (a+b) - ((a * b) >> 8);
+		a = Cr[i];
+		b = Cr2[i];
+		c = a + (2 * b);
+		Cr[i] = CLAMP_UV(c - 0xff);
+   	 }
 
-	a = Cb[i]-128;
-	b = Cb2[i]-128;
-	c = (a + b) - (( a * b) >> 8);
-	c += 128;
-	Cb[i] = CLAMP_UV(c);
-
-
-	a = Cr[i]-128;
-	b = Cr2[i]-128;
-	c = (a + b) - ((a*b) >> 8);
-	c += 128;
-	Cr[i] = CLAMP_UV(c);
-    }
 }
 
 void chromamagic_diffnegate(VJFrame *frame, VJFrame *frame2, int width, int height, int op_a) {
diff --git a/veejay-current/veejay-server/libvje/effects/complexsync.c b/veejay-current/veejay-server/libvje/effects/complexsync.c
index b148ae69..5e1e63d3 100644
--- a/veejay-current/veejay-server/libvje/effects/complexsync.c
+++ b/veejay-current/veejay-server/libvje/effects/complexsync.c
@@ -78,13 +78,17 @@ void complexsync_apply(VJFrame *frame, VJFrame *frame2, int width, int height, i
 
 	const unsigned int region = width * val;
 	int strides[4] = { region, region, region, 0 };
-	vj_frame_copy( frame->data, c_outofsync_buffer, strides );
 
-	vj_frame_copy( frame2->data, frame->data, strides );
+	int i;
+	for( i = 0; i < 3; i ++ )
+		vj_frame_copy1( frame->data[i], c_outofsync_buffer[i], strides[i] );
+
+	for( i = 0; i < 3; i ++ ) 
+		vj_frame_copy1( frame2->data[i], frame->data[i], strides[i] );
 
         if( (len - region) > 0)
 	{
-		uint8_t *dest[3] = { Y + region, Cb + region, Cr + region };
+		uint8_t *dest[4] = { Y + region, Cb + region, Cr + region, NULL };
 		vj_frame_copy( c_outofsync_buffer, dest, strides );
 	}
 }
diff --git a/veejay-current/veejay-server/libvje/effects/lumamask.c b/veejay-current/veejay-server/libvje/effects/lumamask.c
index 50381352..c1802b42 100644
--- a/veejay-current/veejay-server/libvje/effects/lumamask.c
+++ b/veejay-current/veejay-server/libvje/effects/lumamask.c
@@ -68,11 +68,15 @@ static int N__ = 0;
 
 int lumamask_malloc(int width, int height)
 {
-   buf[0] = (uint8_t*)vj_yuvalloc(width,height);
+   buf[0] = (uint8_t*)vj_malloc( sizeof(uint8_t) * width * height);
    if(!buf[0]) return 0;
-   buf[1] = buf[0] + (width *height);
-   buf[2] = buf[1] + (width *height);
 
+   veejay_memset( buf[0], 0, width * height );
+
+   buf[1] = buf[0] + (width *height);
+   veejay_memset( buf[1], 128, width * height );
+   buf[2] = buf[1] + (width *height);
+   veejay_memset( buf[2], 128, width * height );
    n__ = 0;
    N__ = 0;   
    return 1;
@@ -111,11 +115,8 @@ void lumamask_apply( VJFrame *frame, VJFrame *frame2, int width,
 	uint8_t *Cb2 = frame2->data[1];
 	uint8_t *Cr2 = frame2->data[2];
 
-	// keep copy of original frame
-	veejay_memcpy(buf[0], Y, width * height );
-	veejay_memcpy(buf[1], Cb, (width * height) );
-	veejay_memcpy(buf[2], Cr, (width * height) );
-
+	int strides[4] = { width * height, width * height, width * height ,0};
+	vj_frame_copy( frame->data, buf, strides );
 
 	if( border )
 	{
diff --git a/veejay-current/veejay-server/libvje/effects/opacity.c b/veejay-current/veejay-server/libvje/effects/opacity.c
index 62ec7aef..f311eb4e 100644
--- a/veejay-current/veejay-server/libvje/effects/opacity.c
+++ b/veejay-current/veejay-server/libvje/effects/opacity.c
@@ -61,7 +61,7 @@ vj_effect *opacity_init(int w, int h)
     ve->limits[1][0] = 255;
     ve->defaults[0] = 150;
     ve->description = "Normal Overlay";
-    ve->sub_format = 0;
+    ve->sub_format = 1;
     ve->extra_frame = 1;
 	ve->parallel = 1;
 	ve->has_user = 0;
@@ -164,14 +164,7 @@ static void	opacity_apply_job( void *arg )
 void opacity_apply( VJFrame *frame, VJFrame *frame2, int width,
 		   int height, int opacity)
 {
-/*	if( vj_task_available() ) {
-		vj_task_set_from_frame( frame );
-		vj_task_set_int( opacity );
-		vj_task_run( frame->data, frame2->data, NULL, NULL, 3, &opacity_apply_job );
-	} else {
-*/
 	opacity_apply1( frame,frame2,width,height,opacity );
-//	}
 }
 
 void opacity_applyN( VJFrame *frame, VJFrame *frame2, int width,
diff --git a/veejay-current/veejay-server/libvje/effects/radcor.c b/veejay-current/veejay-server/libvje/effects/radcor.c
index e00ecd3f..2c4c6e71 100644
--- a/veejay-current/veejay-server/libvje/effects/radcor.c
+++ b/veejay-current/veejay-server/libvje/effects/radcor.c
@@ -64,6 +64,7 @@ int	radcor_malloc( int width, int height )
 	if(!badbuf)
 		return 0;
 	Map    = (uint32_t*) vj_malloc( RUP8(width * height * sizeof(uint32_t)));
+	veejay_memset( Map, 0, RUP8(width * height * sizeof(uint32_t)) );
 	if(!Map)
 		return 0;
 	return 1;
diff --git a/veejay-current/veejay-server/libvje/effects/rawval.c b/veejay-current/veejay-server/libvje/effects/rawval.c
index abb9ebc4..ad4d121f 100644
--- a/veejay-current/veejay-server/libvje/effects/rawval.c
+++ b/veejay-current/veejay-server/libvje/effects/rawval.c
@@ -59,10 +59,13 @@ void rawval_apply( VJFrame *frame, int width, int height,
 		  const int new_color_cb, const int new_color_cr)
 {
     unsigned int i;
-	const int uv_len = frame->uv_len;
+	int uv_len = frame->uv_len;
 	uint8_t *Cb= frame->data[1];
 	uint8_t *Cr= frame->data[2];
 
+	if( frame->ssm )
+		uv_len = frame->len;
+
     for (i = 0; i < uv_len; i++) {
 	if (Cb[i] >= new_color_cb)
 	    Cb[i] = color_cb;
diff --git a/veejay-current/veejay-server/libvje/effects/rotozoom.c b/veejay-current/veejay-server/libvje/effects/rotozoom.c
index 01b35a31..2283ecd6 100644
--- a/veejay-current/veejay-server/libvje/effects/rotozoom.c
+++ b/veejay-current/veejay-server/libvje/effects/rotozoom.c
@@ -224,12 +224,12 @@ void rotozoom_apply( VJFrame *frame, int width, int height, int mode,
 	int strides[4] = { width*height,width*height,width*height,0};
     switch (autom) {		/* alas must do memcpy */
     case 0:
-	vj_frame_copy1( frame->data, rotobuffer, strides );
+	vj_frame_copy( frame->data, rotobuffer, strides );
 	rotozoom2_apply(frame, rotobuffer, width, height, mode, rotate,
 			zoom);
 	break;
     case 1:
-	vj_frame_copy1( frame->data,rotobuffer, strides );
+	vj_frame_copy( frame->data,rotobuffer, strides );
 	rotozoom1_apply(frame, rotobuffer, width, height, mode, rotate,
 			zoom);
 	break;
diff --git a/veejay-current/veejay-server/libvjmem/memcpy.c b/veejay-current/veejay-server/libvjmem/memcpy.c
index beaa4159..277ad5b7 100644
--- a/veejay-current/veejay-server/libvjmem/memcpy.c
+++ b/veejay-current/veejay-server/libvjmem/memcpy.c
@@ -1189,8 +1189,15 @@ static	void	vj_frame_copy_job( void *arg ) {
 	assert( task_get_workers() > 0 );
 #endif
 	for( i = 0; i < 4; i ++ ) {
-		if( info->strides[i] > 0  )
-			veejay_memcpy( info->output[i], info->input[i], info->strides[i] );
+#ifdef STRICT_CHECKING
+		if( info->strides[i] > 0 ) {
+			assert( info->output[i] != NULL );
+			assert( info->input[i] != NULL );
+		}
+#endif
+		if( info->strides[i] == 0 || info->output[i] == NULL || info->output[i] == NULL )
+			continue;
+		veejay_memcpy( info->output[i], info->input[i], info->strides[i] );
 	}
 }
 
@@ -1201,6 +1208,12 @@ static	void	vj_frame_clear_job( void *arg ) {
 	assert( task_get_workers() > 0 );
 #endif
 	for( i = 0; i < 4; i ++ ) {
+#ifdef STRICT_CHECKING
+		if( info->strides[i] > 0 ) {
+			assert( info->input[i] != NULL );
+			assert( info->output[i] != NULL );
+		}
+#endif
 		if( info->strides[i] > 0  )
 			veejay_memset( info->input[i], info->iparam, info->strides[i] );
 	}
@@ -1278,17 +1291,27 @@ void	vj_frame_slow_threaded( uint8_t **p0_buffer, uint8_t **p1_buffer, uint8_t *
 void	vj_frame_simple_clear(  uint8_t **input, int *strides, int v )
 {
 	int i;
-	for( i = 0; i < 4; i ++ ) 
-		if( strides[i] > 0 )
-		veejay_memset( input[i], v,strides[i] );
+	for( i = 0; i < 4; i ++ ) {
+		if( input[i] == NULL || strides[i] == 0 )
+			continue;
+		veejay_memset( input[i], v , strides[i] );
+	}
 }
 
 
-void	vj_frame_simple_copy(  uint8_t **input, uint8_t **output, int *strides, int planes )
+void	vj_frame_simple_copy(  uint8_t **input, uint8_t **output, int *strides  )
 {
 	int i;
-	for( i = 0; i < planes; i ++ ) 
-		veejay_memcpy( output[i],input[i], strides[i] );
+	for( i = 0; i < 4; i ++ )  {
+#ifdef STRICT_CHECKING
+		if( strides[i] > 0 ) {
+			assert( input[i] != NULL );
+			assert( output[i] != NULL );
+		}
+#endif
+		if( input[i] != NULL && output[i] != NULL && strides[i] > 0 )
+			veejay_memcpy( output[i],input[i], strides[i] );
+	}
 }
 
 void	*(* vj_frame_copy)( uint8_t **input, uint8_t **output, int *strides ) = 0;
diff --git a/veejay-current/veejay-server/libvjmem/vj-x86.c b/veejay-current/veejay-server/libvjmem/vj-x86.c
index 79aa2868..959d9ec8 100644
--- a/veejay-current/veejay-server/libvjmem/vj-x86.c
+++ b/veejay-current/veejay-server/libvjmem/vj-x86.c
@@ -215,7 +215,7 @@ void *vj_yuvalloc( unsigned int w, unsigned int h )
 {
 	size_t len = RUP8(w * h * 3);
 	unsigned char *ptr = vj_malloc( len );
-
+	if(!ptr) return NULL;
 	veejay_memset( ptr, 0, (w*h));
 	veejay_memset( ptr + (w*h), 128, (w*h)*2);
 	return ptr;
diff --git a/veejay-current/veejay-server/veejay/vj-shm.c b/veejay-current/veejay-server/veejay/vj-shm.c
index 5efa178f..e4127098 100644
--- a/veejay-current/veejay-server/veejay/vj-shm.c
+++ b/veejay-current/veejay-server/veejay/vj-shm.c
@@ -90,18 +90,21 @@ void	vj_shm_free(void *vv)
 	int res     = pthread_rwlock_destroy( &data->rwlock );
 
 	res = shmdt( v->sms );
-	if(res ) {
+	if(res==-1 ) {
 		veejay_msg(VEEJAY_MSG_DEBUG, "Failed to detach shared memory: %s",strerror(errno));
 	}
 	res = shmctl( v->shm_id, IPC_RMID, NULL );
-	if( res ) {
+	if( res==-1 ) {
 		veejay_msg(0, "Failed to remove shared memory %d: %s", v->shm_id, strerror(errno));
 	} else {
 		veejay_msg(VEEJAY_MSG_INFO, "Shared resource will %d be destroyed.", v->shm_id );
 	}
 
 	if( v->file ) {
-		remove(v->file);
+		res = remove(v->file);
+		if( res == -1 ) {
+			veejay_msg(VEEJAY_MSG_WARNING, "Unable to remove file %s", v->file);
+		}
 		free(v->file);
 	}
 
diff --git a/veejay-current/veejay-server/veejay/vj-task.c b/veejay-current/veejay-server/veejay/vj-task.c
index ebcc5844..9e18a81e 100644
--- a/veejay-current/veejay-server/veejay/vj-task.c
+++ b/veejay-current/veejay-server/veejay/vj-task.c
@@ -501,7 +501,7 @@ void	vj_task_set_from_frame( VJFrame *in )
 		v->strides[0]	= (v->width * v->height);
 		v->uv_width	= in->uv_width;
 		v->uv_height 	= in->uv_height / n;
-		v->strides[1]	= (v->width * v->uv_height) / n;
+		v->strides[1]	= v->uv_width * v->uv_height; //(v->width * v->uv_height) / n;
 		v->strides[2]	= v->strides[1];
 		v->shiftv	= in->shift_v;
 		v->shifth	= in->shift_h;