update for videofilter changes.

36 files changed, 394 insertions, 1006 deletions

diff --git a/gst/alpha/gstalpha.c b/gst/alpha/gstalpha.c
index a97c6812a..001f383ed 100644
--- a/gst/alpha/gstalpha.c
+++ b/gst/alpha/gstalpha.c
@@ -156,17 +156,17 @@ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{ AYUV, ARGB, BGRA, ABGR, RGBA }"));
   g_static_mutex_unlock (&alpha->lock); \
 } G_STMT_END
 
-static gboolean gst_alpha_get_unit_size (GstBaseTransform * btrans,
-    GstCaps * caps, gsize * size);
 static GstCaps *gst_alpha_transform_caps (GstBaseTransform * btrans,
     GstPadDirection direction, GstCaps * caps, GstCaps * filter);
-static gboolean gst_alpha_set_caps (GstBaseTransform * btrans,
-    GstCaps * incaps, GstCaps * outcaps);
-static GstFlowReturn gst_alpha_transform (GstBaseTransform * btrans,
-    GstBuffer * in, GstBuffer * out);
 static void gst_alpha_before_transform (GstBaseTransform * btrans,
     GstBuffer * buf);
 
+static gboolean gst_alpha_set_info (GstVideoFilter * filter,
+    GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
+    GstVideoInfo * out_info);
+static GstFlowReturn gst_alpha_transform_frame (GstVideoFilter * filter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame);
+
 static void gst_alpha_init_params (GstAlpha * alpha);
 static gboolean gst_alpha_set_process_function (GstAlpha * alpha);
 
@@ -204,6 +204,7 @@ gst_alpha_class_init (GstAlphaClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *btrans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   GST_DEBUG_CATEGORY_INIT (gst_alpha_debug, "alpha", 0,
       "alpha - Element for adding alpha channel to streams");
@@ -269,12 +270,13 @@ gst_alpha_class_init (GstAlphaClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_alpha_src_template));
 
-  btrans_class->transform = GST_DEBUG_FUNCPTR (gst_alpha_transform);
   btrans_class->before_transform =
       GST_DEBUG_FUNCPTR (gst_alpha_before_transform);
-  btrans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_alpha_get_unit_size);
   btrans_class->transform_caps = GST_DEBUG_FUNCPTR (gst_alpha_transform_caps);
-  btrans_class->set_caps = GST_DEBUG_FUNCPTR (gst_alpha_set_caps);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_alpha_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_alpha_transform_frame);
 }
 
 static void
@@ -434,25 +436,6 @@ gst_alpha_get_property (GObject * object, guint prop_id, GValue * value,
   }
 }
 
-static gboolean
-gst_alpha_get_unit_size (GstBaseTransform * btrans,
-    GstCaps * caps, gsize * size)
-{
-  GstVideoInfo info;
-
-  if (!gst_video_info_from_caps (&info, caps))
-    return FALSE;
-
-  *size = info.size;
-
-  GST_DEBUG_OBJECT (btrans,
-      "unit size = %" G_GSIZE_FORMAT " for format %s w %d height %d", *size,
-      GST_VIDEO_INFO_NAME (&info), GST_VIDEO_INFO_WIDTH (&info),
-      GST_VIDEO_INFO_HEIGHT (&info));
-
-  return TRUE;
-}
-
 static GstCaps *
 gst_alpha_transform_caps (GstBaseTransform * btrans,
     GstPadDirection direction, GstCaps * caps, GstCaps * filter)
@@ -518,34 +501,28 @@ gst_alpha_transform_caps (GstBaseTransform * btrans,
 }
 
 static gboolean
-gst_alpha_set_caps (GstBaseTransform * btrans,
-    GstCaps * incaps, GstCaps * outcaps)
+gst_alpha_set_info (GstVideoFilter * filter,
+    GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
+    GstVideoInfo * out_info)
 {
-  GstAlpha *alpha = GST_ALPHA (btrans);
-  GstVideoInfo in_info, out_info;
+  GstAlpha *alpha = GST_ALPHA (filter);
   gboolean passthrough;
 
-  if (!gst_video_info_from_caps (&in_info, incaps) ||
-      !gst_video_info_from_caps (&out_info, outcaps))
-    goto invalid_format;
-
   GST_ALPHA_LOCK (alpha);
 
-  alpha->in_sdtv = in_info.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
-  alpha->out_sdtv = out_info.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+  alpha->in_sdtv = in_info->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+  alpha->out_sdtv = out_info->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
 
   passthrough = alpha->prefer_passthrough &&
-      GST_VIDEO_INFO_FORMAT (&in_info) == GST_VIDEO_INFO_FORMAT (&out_info)
+      GST_VIDEO_INFO_FORMAT (in_info) == GST_VIDEO_INFO_FORMAT (out_info)
       && alpha->in_sdtv == alpha->out_sdtv && alpha->method == ALPHA_METHOD_SET
       && alpha->alpha == 1.0;
 
   GST_DEBUG_OBJECT (alpha,
       "Setting caps %" GST_PTR_FORMAT " -> %" GST_PTR_FORMAT
       " (passthrough: %d)", incaps, outcaps, passthrough);
-  gst_base_transform_set_passthrough (btrans, passthrough);
-
-  alpha->in_info = in_info;
-  alpha->out_info = out_info;
+  gst_base_transform_set_passthrough (GST_BASE_TRANSFORM_CAST (filter),
+      passthrough);
 
   if (!gst_alpha_set_process_function (alpha) && !passthrough)
     goto no_process;
@@ -557,13 +534,6 @@ gst_alpha_set_caps (GstBaseTransform * btrans,
   return TRUE;
 
   /* ERRORS */
-invalid_format:
-  {
-    GST_WARNING_OBJECT (alpha,
-        "Failed to parse caps %" GST_PTR_FORMAT " -> %" GST_PTR_FORMAT, incaps,
-        outcaps);
-    return FALSE;
-  }
 no_process:
   {
     GST_WARNING_OBJECT (alpha,
@@ -2325,8 +2295,8 @@ gst_alpha_init_params (GstAlpha * alpha)
   const GstVideoFormatInfo *in_info, *out_info;
   const gint *matrix;
 
-  in_info = alpha->in_info.finfo;
-  out_info = alpha->out_info.finfo;
+  in_info = GST_VIDEO_FILTER (alpha)->in_info.finfo;
+  out_info = GST_VIDEO_FILTER (alpha)->out_info.finfo;
 
   /* RGB->RGB: convert to SDTV YUV, chroma keying, convert back
    * YUV->RGB: chroma keying, convert to RGB
@@ -2390,13 +2360,18 @@ gst_alpha_init_params (GstAlpha * alpha)
 static gboolean
 gst_alpha_set_process_function (GstAlpha * alpha)
 {
+  GstVideoInfo *in_info, *out_info;
+
   alpha->process = NULL;
 
+  in_info = &GST_VIDEO_FILTER_CAST (alpha)->in_info;
+  out_info = &GST_VIDEO_FILTER_CAST (alpha)->out_info;
+
   switch (alpha->method) {
     case ALPHA_METHOD_SET:
-      switch (GST_VIDEO_INFO_FORMAT (&alpha->out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_AYUV:
-          switch (GST_VIDEO_INFO_FORMAT (&alpha->in_info)) {
+          switch (GST_VIDEO_INFO_FORMAT (in_info)) {
             case GST_VIDEO_FORMAT_AYUV:
               alpha->process = gst_alpha_set_ayuv_ayuv;
               break;
@@ -2434,7 +2409,7 @@ gst_alpha_set_process_function (GstAlpha * alpha)
         case GST_VIDEO_FORMAT_ABGR:
         case GST_VIDEO_FORMAT_RGBA:
         case GST_VIDEO_FORMAT_BGRA:
-          switch (GST_VIDEO_INFO_FORMAT (&alpha->in_info)) {
+          switch (GST_VIDEO_INFO_FORMAT (in_info)) {
             case GST_VIDEO_FORMAT_AYUV:
               alpha->process = gst_alpha_set_ayuv_argb;
               break;
@@ -2476,9 +2451,9 @@ gst_alpha_set_process_function (GstAlpha * alpha)
     case ALPHA_METHOD_GREEN:
     case ALPHA_METHOD_BLUE:
     case ALPHA_METHOD_CUSTOM:
-      switch (GST_VIDEO_INFO_FORMAT (&alpha->out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_AYUV:
-          switch (GST_VIDEO_INFO_FORMAT (&alpha->in_info)) {
+          switch (GST_VIDEO_INFO_FORMAT (in_info)) {
             case GST_VIDEO_FORMAT_AYUV:
               alpha->process = gst_alpha_chroma_key_ayuv_ayuv;
               break;
@@ -2516,7 +2491,7 @@ gst_alpha_set_process_function (GstAlpha * alpha)
         case GST_VIDEO_FORMAT_ABGR:
         case GST_VIDEO_FORMAT_RGBA:
         case GST_VIDEO_FORMAT_BGRA:
-          switch (GST_VIDEO_INFO_FORMAT (&alpha->in_info)) {
+          switch (GST_VIDEO_INFO_FORMAT (in_info)) {
             case GST_VIDEO_FORMAT_AYUV:
               alpha->process = gst_alpha_chroma_key_ayuv_argb;
               break;
@@ -2575,26 +2550,17 @@ gst_alpha_before_transform (GstBaseTransform * btrans, GstBuffer * buf)
 }
 
 static GstFlowReturn
-gst_alpha_transform (GstBaseTransform * btrans, GstBuffer * in, GstBuffer * out)
+gst_alpha_transform_frame (GstVideoFilter * filter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstAlpha *alpha = GST_ALPHA (btrans);
-  GstVideoFrame in_frame, out_frame;
+  GstAlpha *alpha = GST_ALPHA (filter);
 
   GST_ALPHA_LOCK (alpha);
 
   if (G_UNLIKELY (!alpha->process))
     goto not_negotiated;
 
-  if (!gst_video_frame_map (&in_frame, &alpha->in_info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &alpha->out_info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  alpha->process (&in_frame, &out_frame, alpha);
-
-  gst_video_frame_unmap (&out_frame);
-  gst_video_frame_unmap (&in_frame);
+  alpha->process (in_frame, out_frame, alpha);
 
   GST_ALPHA_UNLOCK (alpha);
 
@@ -2607,19 +2573,6 @@ not_negotiated:
     GST_ALPHA_UNLOCK (alpha);
     return GST_FLOW_NOT_NEGOTIATED;
   }
-invalid_in:
-  {
-    GST_ERROR_OBJECT (alpha, "Invalid input frame");
-    GST_ALPHA_UNLOCK (alpha);
-    return GST_FLOW_OK;
-  }
-invalid_out:
-  {
-    GST_ERROR_OBJECT (alpha, "Invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    GST_ALPHA_UNLOCK (alpha);
-    return GST_FLOW_OK;
-  }
 }
 
 static gboolean
diff --git a/gst/alpha/gstalpha.h b/gst/alpha/gstalpha.h
index 3e15c14a9..c24b753ba 100644
--- a/gst/alpha/gstalpha.h
+++ b/gst/alpha/gstalpha.h
@@ -71,7 +71,6 @@ struct _GstAlpha
   /* caps */
   GStaticMutex lock;
 
-  GstVideoInfo in_info, out_info;
   gboolean in_sdtv, out_sdtv;
 
   /* properties */
diff --git a/gst/alpha/gstalphacolor.c b/gst/alpha/gstalphacolor.c
index 66e2c330d..18fe27937 100644
--- a/gst/alpha/gstalphacolor.c
+++ b/gst/alpha/gstalphacolor.c
@@ -62,10 +62,12 @@ G_DEFINE_TYPE (GstAlphaColor, gst_alpha_color, GST_TYPE_VIDEO_FILTER);
 
 static GstCaps *gst_alpha_color_transform_caps (GstBaseTransform * btrans,
     GstPadDirection direction, GstCaps * caps, GstCaps * filter);
-static gboolean gst_alpha_color_set_caps (GstBaseTransform * btrans,
-    GstCaps * incaps, GstCaps * outcaps);
-static GstFlowReturn gst_alpha_color_transform_ip (GstBaseTransform * btrans,
-    GstBuffer * inbuf);
+
+static gboolean gst_alpha_color_set_info (GstVideoFilter * filter,
+    GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
+    GstVideoInfo * out_info);
+static GstFlowReturn gst_alpha_color_transform_frame_ip (GstVideoFilter *
+    filter, GstVideoFrame * frame);
 
 static void
 gst_alpha_color_class_init (GstAlphaColorClass * klass)
@@ -73,6 +75,7 @@ gst_alpha_color_class_init (GstAlphaColorClass * klass)
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *gstbasetransform_class =
       (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *gstvideofilter_class = (GstVideoFilterClass *) klass;
 
   GST_DEBUG_CATEGORY_INIT (alpha_color_debug, "alphacolor", 0,
       "ARGB<->AYUV colorspace conversion preserving the alpha channels");
@@ -89,10 +92,10 @@ gst_alpha_color_class_init (GstAlphaColorClass * klass)
 
   gstbasetransform_class->transform_caps =
       GST_DEBUG_FUNCPTR (gst_alpha_color_transform_caps);
-  gstbasetransform_class->set_caps =
-      GST_DEBUG_FUNCPTR (gst_alpha_color_set_caps);
-  gstbasetransform_class->transform_ip =
-      GST_DEBUG_FUNCPTR (gst_alpha_color_transform_ip);
+
+  gstvideofilter_class->set_info = GST_DEBUG_FUNCPTR (gst_alpha_color_set_info);
+  gstvideofilter_class->transform_frame_ip =
+      GST_DEBUG_FUNCPTR (gst_alpha_color_transform_frame_ip);
 }
 
 static void
@@ -471,32 +474,25 @@ transform_rgba_argb (GstVideoFrame * frame, const gint * matrix)
 #define transform_bgra_abgr transform_rgba_argb
 
 static gboolean
-gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_alpha_color_set_info (GstVideoFilter * filter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans);
-  gboolean ret;
-  GstVideoInfo in_info, out_info;
+  GstAlphaColor *alpha = GST_ALPHA_COLOR (filter);
   gboolean in_sdtv, out_sdtv;
 
   alpha->process = NULL;
   alpha->matrix = NULL;
 
-  ret = gst_video_info_from_caps (&in_info, incaps);
-  ret &= gst_video_info_from_caps (&out_info, outcaps);
-  if (!ret)
-    goto invalid_caps;
-
-  if (GST_VIDEO_INFO_WIDTH (&in_info) != GST_VIDEO_INFO_WIDTH (&out_info) ||
-      GST_VIDEO_INFO_HEIGHT (&in_info) != GST_VIDEO_INFO_HEIGHT (&out_info))
+  if (GST_VIDEO_INFO_WIDTH (in_info) != GST_VIDEO_INFO_WIDTH (out_info) ||
+      GST_VIDEO_INFO_HEIGHT (in_info) != GST_VIDEO_INFO_HEIGHT (out_info))
     goto invalid_caps;
 
-  in_sdtv = in_info.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
-  out_sdtv = out_info.colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+  in_sdtv = in_info->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
+  out_sdtv = out_info->colorimetry.matrix = GST_VIDEO_COLOR_MATRIX_BT601;
 
-  switch (GST_VIDEO_INFO_FORMAT (&in_info)) {
+  switch (GST_VIDEO_INFO_FORMAT (in_info)) {
     case GST_VIDEO_FORMAT_ARGB:
-      switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_ARGB:
           alpha->process = NULL;
           alpha->matrix = NULL;
@@ -526,7 +522,7 @@ gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
       }
       break;
     case GST_VIDEO_FORMAT_BGRA:
-      switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_BGRA:
           alpha->process = NULL;
           alpha->matrix = NULL;
@@ -556,7 +552,7 @@ gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
       }
       break;
     case GST_VIDEO_FORMAT_ABGR:
-      switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_ABGR:
           alpha->process = NULL;
           alpha->matrix = NULL;
@@ -586,7 +582,7 @@ gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
       }
       break;
     case GST_VIDEO_FORMAT_RGBA:
-      switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_RGBA:
           alpha->process = NULL;
           alpha->matrix = NULL;
@@ -616,7 +612,7 @@ gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
       }
       break;
     case GST_VIDEO_FORMAT_AYUV:
-      switch (GST_VIDEO_INFO_FORMAT (&out_info)) {
+      switch (GST_VIDEO_INFO_FORMAT (out_info)) {
         case GST_VIDEO_FORMAT_AYUV:
           if (in_sdtv == out_sdtv) {
             alpha->process = transform_ayuv_ayuv;
@@ -664,9 +660,9 @@ gst_alpha_color_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
       break;
   }
 
-  if (GST_VIDEO_INFO_FORMAT (&in_info) == GST_VIDEO_INFO_FORMAT (&out_info)
+  if (GST_VIDEO_INFO_FORMAT (in_info) == GST_VIDEO_INFO_FORMAT (out_info)
       && in_sdtv == out_sdtv)
-    gst_base_transform_set_passthrough (btrans, TRUE);
+    gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (filter), TRUE);
   else if (!alpha->process)
     goto no_process;
 
@@ -686,24 +682,19 @@ no_process:
 }
 
 static GstFlowReturn
-gst_alpha_color_transform_ip (GstBaseTransform * btrans, GstBuffer * inbuf)
+gst_alpha_color_transform_frame_ip (GstVideoFilter * filter,
+    GstVideoFrame * frame)
 {
-  GstAlphaColor *alpha = GST_ALPHA_COLOR (btrans);
-  GstVideoFrame frame;
+  GstAlphaColor *alpha = GST_ALPHA_COLOR (filter);
 
-  if (gst_base_transform_is_passthrough (btrans))
+  if (gst_base_transform_is_passthrough (GST_BASE_TRANSFORM (filter)))
     return GST_FLOW_OK;
 
   if (G_UNLIKELY (!alpha->process))
     goto not_negotiated;
 
-  if (!gst_video_frame_map (&frame, &alpha->in_info, inbuf, GST_MAP_READWRITE))
-    goto invalid_buffer;
-
   /* Transform in place */
-  alpha->process (&frame, alpha->matrix);
-
-  gst_video_frame_unmap (&frame);
+  alpha->process (frame, alpha->matrix);
 
   return GST_FLOW_OK;
 
@@ -713,11 +704,6 @@ not_negotiated:
     GST_ERROR_OBJECT (alpha, "Not negotiated yet");
     return GST_FLOW_NOT_NEGOTIATED;
   }
-invalid_buffer:
-  {
-    GST_ERROR_OBJECT (alpha, "Invalid buffer received");
-    return GST_FLOW_ERROR;
-  }
 }
 
 static gboolean
diff --git a/gst/alpha/gstalphacolor.h b/gst/alpha/gstalphacolor.h
index 11f8674ce..ca0e5cc41 100644
--- a/gst/alpha/gstalphacolor.h
+++ b/gst/alpha/gstalphacolor.h
@@ -42,10 +42,8 @@ struct _GstAlphaColor
   GstVideoFilter parent;
 
   /*< private >*/
-  /* caps */
-  GstVideoInfo in_info, out_info;
-
   void (*process) (GstVideoFrame * frame, const gint * matrix);
+
   const gint *matrix;
 };
 
diff --git a/gst/debugutils/gstnavigationtest.c b/gst/debugutils/gstnavigationtest.c
index 7ee945e25..1e31e09a1 100644
--- a/gst/debugutils/gstnavigationtest.c
+++ b/gst/debugutils/gstnavigationtest.c
@@ -55,19 +55,22 @@ G_DEFINE_TYPE (GstNavigationtest, gst_navigationtest, GST_TYPE_VIDEO_FILTER);
 static gboolean
 gst_navigationtest_src_event (GstBaseTransform * trans, GstEvent * event)
 {
+  GstVideoInfo *info;
   GstNavigationtest *navtest;
   const gchar *type;
 
   navtest = GST_NAVIGATIONTEST (trans);
 
+  info = &GST_VIDEO_FILTER (trans)->in_info;
+
   switch (GST_EVENT_TYPE (event)) {
     case GST_EVENT_NAVIGATION:
     {
       const GstStructure *s = gst_event_get_structure (event);
       gint fps_n, fps_d;
 
-      fps_n = GST_VIDEO_INFO_FPS_N (&navtest->info);
-      fps_d = GST_VIDEO_INFO_FPS_D (&navtest->info);
+      fps_n = GST_VIDEO_INFO_FPS_N (info);
+      fps_d = GST_VIDEO_INFO_FPS_D (info);
 
       type = gst_structure_get_string (s, "event");
       if (g_str_equal (type, "mouse-move")) {
@@ -115,53 +118,6 @@ gst_navigationtest_src_event (GstBaseTransform * trans, GstEvent * event)
 
 #define GST_VIDEO_I420_SIZE(w,h)     (GST_VIDEO_I420_V_OFFSET(w,h)+(GST_VIDEO_I420_V_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
 
-static gboolean
-gst_navigationtest_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
-    gsize * size)
-{
-  GstNavigationtest *navtest;
-  GstStructure *structure;
-  gboolean ret = FALSE;
-  gint width, height;
-
-  navtest = GST_NAVIGATIONTEST (btrans);
-
-  structure = gst_caps_get_structure (caps, 0);
-
-  if (gst_structure_get_int (structure, "width", &width) &&
-      gst_structure_get_int (structure, "height", &height)) {
-    *size = GST_VIDEO_I420_SIZE (width, height);
-    ret = TRUE;
-    GST_DEBUG_OBJECT (navtest,
-        "our frame size is %" G_GSIZE_FORMAT " bytes (%dx%d)", *size, width,
-        height);
-  }
-
-  return ret;
-}
-
-static gboolean
-gst_navigationtest_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
-{
-  GstNavigationtest *navtest = GST_NAVIGATIONTEST (btrans);
-  GstVideoInfo info;
-
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  navtest->info = info;
-
-  return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_ERROR_OBJECT (navtest, "invalid caps");
-    return FALSE;
-  }
-}
-
 static void
 draw_box_planar411 (GstVideoFrame * frame, int x, int y,
     guint8 colory, guint8 coloru, guint8 colorv)
@@ -215,53 +171,30 @@ draw_box_planar411 (GstVideoFrame * frame, int x, int y,
 }
 
 static GstFlowReturn
-gst_navigationtest_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_navigationtest_transform_frame (GstVideoFilter * filter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstNavigationtest *navtest = GST_NAVIGATIONTEST (trans);
+  GstNavigationtest *navtest = GST_NAVIGATIONTEST (filter);
   GSList *walk;
-  GstVideoFrame in_frame, out_frame;
-
-  if (!gst_video_frame_map (&in_frame, &navtest->info, in, GST_MAP_READ))
-    goto invalid_in;
 
-  if (!gst_video_frame_map (&out_frame, &navtest->info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  gst_video_frame_copy (&out_frame, &in_frame);
+  gst_video_frame_copy (out_frame, in_frame);
 
   walk = navtest->clicks;
   while (walk) {
     ButtonClick *click = walk->data;
 
     walk = g_slist_next (walk);
-    draw_box_planar411 (&out_frame,
+    draw_box_planar411 (out_frame,
         rint (click->x), rint (click->y), click->cy, click->cu, click->cv);
     if (--click->images_left < 1) {
       navtest->clicks = g_slist_remove (navtest->clicks, click);
       g_free (click);
     }
   }
-  draw_box_planar411 (&out_frame,
+  draw_box_planar411 (out_frame,
       rint (navtest->x), rint (navtest->y), 0, 128, 128);
 
-  gst_video_frame_unmap (&out_frame);
-  gst_video_frame_unmap (&in_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_ERROR_OBJECT (navtest, "received invalid input buffer");
-    return GST_FLOW_OK;
-  }
-invalid_out:
-  {
-    GST_ERROR_OBJECT (navtest, "received invalid output buffer");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_OK;
-  }
 }
 
 static GstStateChangeReturn
@@ -295,11 +228,11 @@ gst_navigationtest_class_init (GstNavigationtestClass * klass)
 {
   GstElementClass *element_class;
   GstBaseTransformClass *trans_class;
+  GstVideoFilterClass *vfilter_class;
 
   element_class = (GstElementClass *) klass;
   trans_class = (GstBaseTransformClass *) klass;
-
-  parent_class = g_type_class_peek_parent (klass);
+  vfilter_class = (GstVideoFilterClass *) klass;
 
   element_class->change_state =
       GST_DEBUG_FUNCPTR (gst_navigationtest_change_state);
@@ -314,11 +247,10 @@ gst_navigationtest_class_init (GstNavigationtestClass * klass)
   gst_element_class_add_pad_template (element_class,
       gst_static_pad_template_get (&gst_navigationtest_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_navigationtest_set_caps);
-  trans_class->get_unit_size =
-      GST_DEBUG_FUNCPTR (gst_navigationtest_get_unit_size);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_navigationtest_transform);
   trans_class->src_event = GST_DEBUG_FUNCPTR (gst_navigationtest_src_event);
+
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_navigationtest_transform_frame);
 }
 
 static void
diff --git a/gst/debugutils/gstnavigationtest.h b/gst/debugutils/gstnavigationtest.h
index 6ff9ef45d..deff63840 100644
--- a/gst/debugutils/gstnavigationtest.h
+++ b/gst/debugutils/gstnavigationtest.h
@@ -50,8 +50,6 @@ struct _GstNavigationtest
 {
   GstVideoFilter videofilter;
 
-  GstVideoInfo info;
-
   gdouble x, y;
   GSList *clicks;
 };
diff --git a/gst/effectv/gstaging.c b/gst/effectv/gstaging.c
index d3c9da5ad..7b8f16ff3 100644
--- a/gst/effectv/gstaging.c
+++ b/gst/effectv/gstaging.c
@@ -87,28 +87,6 @@ GST_STATIC_PAD_TEMPLATE ("sink",
 
 G_DEFINE_TYPE (GstAgingTV, gst_agingtv, GST_TYPE_VIDEO_FILTER);
 
-static gboolean
-gst_agingtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
-{
-  GstAgingTV *filter = GST_AGINGTV (btrans);
-  GstVideoInfo info;
-
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_ERROR_OBJECT (filter, "could not parse caps");
-    return GST_FLOW_ERROR;
-  }
-}
-
 static void
 coloraging (guint32 * src, guint32 * dest, gint video_area, gint * c)
 {
@@ -321,19 +299,19 @@ gst_agingtv_start (GstBaseTransform * trans)
 }
 
 static GstFlowReturn
-gst_agingtv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_agingtv_transform_frame (GstVideoFilter * filter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstAgingTV *agingtv = GST_AGINGTV (trans);
-  GstVideoFrame in_frame, out_frame;
+  GstAgingTV *agingtv = GST_AGINGTV (filter);
   gint area_scale;
   GstClockTime timestamp, stream_time;
   gint width, height, stride, video_size;
   guint32 *src, *dest;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (filter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (agingtv, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -341,20 +319,13 @@ gst_agingtv_transform (GstBaseTransform * trans, GstBuffer * in,
   if (GST_CLOCK_TIME_IS_VALID (stream_time))
     gst_object_sync_values (GST_OBJECT (agingtv), stream_time);
 
-  if (!gst_video_frame_map (&in_frame, &agingtv->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &agingtv->info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
-  stride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
+  stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
   video_size = stride * height;
 
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
   area_scale = width * height / 64 / 480;
   if (area_scale <= 0)
@@ -371,23 +342,7 @@ gst_agingtv_transform (GstBaseTransform * trans, GstBuffer * in,
   if (area_scale > 1 && agingtv->dusts)
     dusts (dest, width, height, &agingtv->dust_interval, area_scale);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (agingtv, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (agingtv, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static void
@@ -396,6 +351,7 @@ gst_agingtv_class_init (GstAgingTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_agingtv_set_property;
   gobject_class->get_property = gst_agingtv_get_property;
@@ -430,9 +386,10 @@ gst_agingtv_class_init (GstAgingTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_agingtv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_agingtv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_agingtv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_agingtv_start);
+
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_agingtv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstaging.h b/gst/effectv/gstaging.h
index ec02f6672..604af5d18 100644
--- a/gst/effectv/gstaging.h
+++ b/gst/effectv/gstaging.h
@@ -62,8 +62,6 @@ struct _GstAgingTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
-
   gboolean color_aging;
   gboolean pits;
   gboolean dusts;
diff --git a/gst/effectv/gstdice.c b/gst/effectv/gstdice.c
index ca803b059..f3b47c19f 100644
--- a/gst/effectv/gstdice.c
+++ b/gst/effectv/gstdice.c
@@ -91,38 +91,25 @@ enum
 };
 
 static gboolean
-gst_dicetv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_dicetv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstDiceTV *filter = GST_DICETV (btrans);
-  GstVideoInfo info;
-
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
+  GstDiceTV *filter = GST_DICETV (vfilter);
 
   g_free (filter->dicemap);
   filter->dicemap =
-      (guint8 *) g_malloc (GST_VIDEO_INFO_WIDTH (&info) *
-      GST_VIDEO_INFO_WIDTH (&info));
+      (guint8 *) g_malloc (GST_VIDEO_INFO_WIDTH (in_info) *
+      GST_VIDEO_INFO_WIDTH (in_info));
   gst_dicetv_create_map (filter);
 
-  filter->info = info;
-
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps");
-    return FALSE;
-  }
 }
 
 static GstFlowReturn
-gst_dicetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
+gst_dicetv_transform_frame (GstVideoFilter * vfilter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstDiceTV *filter = GST_DICETV (trans);
-  GstVideoFrame in_frame, out_frame;
+  GstDiceTV *filter = GST_DICETV (vfilter);
   guint32 *src, *dest;
   gint i, map_x, map_y, map_i, base, dx, dy, di;
   gint video_stride, g_cube_bits, g_cube_size;
@@ -130,9 +117,10 @@ gst_dicetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   GstClockTime timestamp, stream_time;
   const guint8 *dicemap;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (vfilter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -140,12 +128,9 @@ gst_dicetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   if (GST_CLOCK_TIME_IS_VALID (stream_time))
     gst_object_sync_values (GST_OBJECT (filter), stream_time);
 
-  gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ);
-  gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE);
-
-  src = (guint32 *) GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = (guint32 *) GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
-  video_stride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
+  src = (guint32 *) GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = (guint32 *) GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
+  video_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
 
   GST_OBJECT_LOCK (filter);
   g_cube_bits = filter->g_cube_bits;
@@ -211,9 +196,6 @@ gst_dicetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   }
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
 }
 
@@ -222,9 +204,10 @@ gst_dicetv_create_map (GstDiceTV * filter)
 {
   gint x, y, i;
   gint width, height;
+  GstVideoInfo *info = &GST_VIDEO_FILTER (filter)->in_info;
 
-  width = GST_VIDEO_INFO_WIDTH (&filter->info);
-  height = GST_VIDEO_INFO_HEIGHT (&filter->info);
+  width = GST_VIDEO_INFO_WIDTH (info);
+  height = GST_VIDEO_INFO_HEIGHT (info);
 
   if (width <= 0 || height <= 0)
     return;
@@ -295,7 +278,7 @@ gst_dicetv_class_init (GstDiceTVClass * klass)
 {
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
-  GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_dicetv_set_property;
   gobject_class->get_property = gst_dicetv_get_property;
@@ -316,8 +299,9 @@ gst_dicetv_class_init (GstDiceTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_dicetv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_dicetv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_dicetv_transform);
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_dicetv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_dicetv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstdice.h b/gst/effectv/gstdice.h
index 0a5c3e613..0a6e5eecf 100644
--- a/gst/effectv/gstdice.h
+++ b/gst/effectv/gstdice.h
@@ -55,7 +55,6 @@ struct _GstDiceTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
   guint8 *dicemap;
 
   gint g_cube_bits;
diff --git a/gst/effectv/gstedge.c b/gst/effectv/gstedge.c
index 5ba182e45..6d894b084 100644
--- a/gst/effectv/gstedge.c
+++ b/gst/effectv/gstedge.c
@@ -70,21 +70,15 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     );
 
 static gboolean
-gst_edgetv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_edgetv_set_info (GstVideoFilter * filter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstEdgeTV *edgetv = GST_EDGETV (btrans);
-  GstVideoInfo info;
+  GstEdgeTV *edgetv = GST_EDGETV (filter);
   guint map_size;
   gint width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  edgetv->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   edgetv->map_width = width / 4;
   edgetv->map_height = height / 4;
@@ -96,19 +90,13 @@ gst_edgetv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   edgetv->map = (guint32 *) g_malloc0 (map_size);
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (btrans, "could not parse caps");
-    return FALSE;
-  }
 }
 
 static GstFlowReturn
-gst_edgetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
+gst_edgetv_transform_frame (GstVideoFilter * vfilter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstEdgeTV *filter = GST_EDGETV (trans);
+  GstEdgeTV *filter = GST_EDGETV (vfilter);
   gint x, y, r, g, b;
   guint32 *src, *dest;
   guint32 p, q;
@@ -117,20 +105,16 @@ gst_edgetv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   gint video_width_margin;
   guint32 *map;
   GstFlowReturn ret = GST_FLOW_OK;
-  GstVideoFrame in_frame, out_frame;
 
   map = filter->map;
   map_height = filter->map_height;
   map_width = filter->map_width;
   video_width_margin = filter->video_width_margin;
 
-  gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ);
-  gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE);
-
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
 
   src += width * 4 + 4;
   dest += width * 4 + 4;
@@ -244,6 +228,7 @@ gst_edgetv_class_init (GstEdgeTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->finalize = gst_edgetv_finalize;
 
@@ -256,9 +241,11 @@ gst_edgetv_class_init (GstEdgeTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_edgetv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_edgetv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_edgetv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_edgetv_start);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_edgetv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_edgetv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstedge.h b/gst/effectv/gstedge.h
index 469dc68c0..f906fa361 100644
--- a/gst/effectv/gstedge.h
+++ b/gst/effectv/gstedge.h
@@ -53,7 +53,6 @@ struct _GstEdgeTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
   gint map_width, map_height;
   guint32 *map;
   gint video_width_margin;
diff --git a/gst/effectv/gstop.c b/gst/effectv/gstop.c
index 7d89ea1c4..6d01395bd 100644
--- a/gst/effectv/gstop.c
+++ b/gst/effectv/gstop.c
@@ -199,20 +199,21 @@ image_y_over (guint32 * src, guint8 * diff, gint y_threshold, gint video_area)
 }
 
 static GstFlowReturn
-gst_optv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
+gst_optv_transform_frame (GstVideoFilter * vfilter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstOpTV *filter = GST_OPTV (trans);
+  GstOpTV *filter = GST_OPTV (vfilter);
   guint32 *src, *dest;
-  GstVideoFrame in_frame, out_frame;
   gint8 *p;
   guint8 *diff;
   gint x, y, width, height;
   GstClockTime timestamp, stream_time;
   guint8 phase;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (vfilter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -223,17 +224,11 @@ gst_optv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   if (G_UNLIKELY (filter->opmap[0] == NULL))
     return GST_FLOW_NOT_NEGOTIATED;
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   GST_OBJECT_LOCK (filter);
   switch (filter->mode) {
@@ -266,40 +261,18 @@ gst_optv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   }
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static gboolean
-gst_optv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_optv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstOpTV *filter = GST_OPTV (btrans);
-  GstVideoInfo info;
+  GstOpTV *filter = GST_OPTV (vfilter);
   gint i, width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   for (i = 0; i < 4; i++) {
     if (filter->opmap[i])
@@ -313,13 +286,6 @@ gst_optv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   filter->diff = g_new (guint8, width * height);
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static gboolean
@@ -406,6 +372,7 @@ gst_optv_class_init (GstOpTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_optv_set_property;
   gobject_class->get_property = gst_optv_get_property;
@@ -438,10 +405,11 @@ gst_optv_class_init (GstOpTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_optv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_optv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_optv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_optv_start);
 
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_optv_set_info);
+  vfilter_class->transform_frame = GST_DEBUG_FUNCPTR (gst_optv_transform_frame);
+
   initPalette ();
 }
 
diff --git a/gst/effectv/gstop.h b/gst/effectv/gstop.h
index d5e0fec85..4e948686a 100644
--- a/gst/effectv/gstop.h
+++ b/gst/effectv/gstop.h
@@ -53,8 +53,6 @@ struct _GstOpTV
   GstVideoFilter element;
 
   /* < private > */
-  GstVideoInfo info;
-
   gint mode;
   gint speed;
   guint threshold;
diff --git a/gst/effectv/gstquark.c b/gst/effectv/gstquark.c
index 4ae7ecb19..81998fe0a 100644
--- a/gst/effectv/gstquark.c
+++ b/gst/effectv/gstquark.c
@@ -78,49 +78,36 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     );
 
 static gboolean
-gst_quarktv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_quarktv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstQuarkTV *filter = GST_QUARKTV (btrans);
-  GstVideoInfo info;
+  GstQuarkTV *filter = GST_QUARKTV (vfilter);
   gint width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   gst_quarktv_planetable_clear (filter);
   filter->area = width * height;
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static GstFlowReturn
-gst_quarktv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_quarktv_transform_frame (GstVideoFilter * vfilter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstQuarkTV *filter = GST_QUARKTV (trans);
+  GstQuarkTV *filter = GST_QUARKTV (vfilter);
   gint area;
   guint32 *src, *dest;
   GstClockTime timestamp;
   GstBuffer **planetable;
   gint planes, current_plane;
-  GstVideoFrame in_frame, out_frame;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   timestamp =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (vfilter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -131,14 +118,8 @@ gst_quarktv_transform (GstBaseTransform * trans, GstBuffer * in,
   if (G_UNLIKELY (filter->planetable == NULL))
     return GST_FLOW_WRONG_STATE;
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
   GST_OBJECT_LOCK (filter);
   area = filter->area;
@@ -148,7 +129,7 @@ gst_quarktv_transform (GstBaseTransform * trans, GstBuffer * in,
 
   if (planetable[current_plane])
     gst_buffer_unref (planetable[current_plane]);
-  planetable[current_plane] = gst_buffer_ref (in);
+  planetable[current_plane] = gst_buffer_ref (in_frame->buffer);
 
   /* For each pixel */
   while (--area) {
@@ -169,23 +150,7 @@ gst_quarktv_transform (GstBaseTransform * trans, GstBuffer * in,
     filter->current_plane = planes - 1;
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static void
@@ -298,6 +263,7 @@ gst_quarktv_class_init (GstQuarkTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_quarktv_set_property;
   gobject_class->get_property = gst_quarktv_get_property;
@@ -318,9 +284,11 @@ gst_quarktv_class_init (GstQuarkTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_quarktv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_quarktv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_quarktv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_quarktv_start);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_quarktv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_quarktv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstquark.h b/gst/effectv/gstquark.h
index e3fd17d9b..2b092ed98 100644
--- a/gst/effectv/gstquark.h
+++ b/gst/effectv/gstquark.h
@@ -53,8 +53,6 @@ struct _GstQuarkTV
   GstVideoFilter element;
 
   /* < private > */
-  GstVideoInfo info;
-
   gint area;
   gint planes;
   gint current_plane;
diff --git a/gst/effectv/gstradioac.c b/gst/effectv/gstradioac.c
index 57b6d5db3..a84f2ef20 100644
--- a/gst/effectv/gstradioac.c
+++ b/gst/effectv/gstradioac.c
@@ -233,9 +233,12 @@ blur (GstRadioacTV * filter)
   gint width;
   guint8 *p, *q;
   guint8 v;
+  GstVideoInfo *info;
+
+  info = &GST_VIDEO_FILTER (filter)->in_info;
 
   width = filter->buf_width;
-  p = filter->blurzoombuf + GST_VIDEO_INFO_WIDTH (&filter->info) + 1;
+  p = filter->blurzoombuf + GST_VIDEO_INFO_WIDTH (info) + 1;
   q = p + filter->buf_area;
 
   for (y = filter->buf_height - 2; y > 0; y--) {
@@ -315,21 +318,21 @@ image_bgsubtract_update_y (guint32 * src, gint16 * background, guint8 * diff,
 }
 
 static GstFlowReturn
-gst_radioactv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_radioactv_transform_frame (GstVideoFilter * vfilter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstRadioacTV *filter = GST_RADIOACTV (trans);
+  GstRadioacTV *filter = GST_RADIOACTV (vfilter);
   guint32 *src, *dest;
-  GstVideoFrame in_frame, out_frame;
   GstClockTime timestamp, stream_time;
   gint x, y, width, height;
   guint32 a, b;
   guint8 *diff, *p;
   guint32 *palette;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (filter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -337,27 +340,21 @@ gst_radioactv_transform (GstBaseTransform * trans, GstBuffer * in,
   if (GST_CLOCK_TIME_IS_VALID (stream_time))
     gst_object_sync_values (GST_OBJECT (filter), stream_time);
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
-
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   GST_OBJECT_LOCK (filter);
 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
-  if (GST_VIDEO_FRAME_FORMAT (&in_frame) == GST_VIDEO_FORMAT_RGBx) {
+  if (GST_VIDEO_FRAME_FORMAT (in_frame) == GST_VIDEO_FORMAT_RGBx) {
     palette = &palettes[COLORS * filter->color];
   } else {
     palette = &palettes[COLORS * swap_tab[filter->color]];
   }
 #else
-  if (GST_VIDEO_FRAME_FORMAT (&in_frame) == GST_VIDEO_FORMAT_xBGR) {
+  if (GST_VIDEO_FRAME_FORMAT (in_frame) == GST_VIDEO_FORMAT_xBGR) {
     palette = &palettes[COLORS * filter->color];
   } else {
     palette = &palettes[COLORS * swap_tab[filter->color]];
@@ -418,40 +415,18 @@ gst_radioactv_transform (GstBaseTransform * trans, GstBuffer * in,
   }
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static gboolean
-gst_radioactv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_radioactv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstRadioacTV *filter = GST_RADIOACTV (btrans);
-  GstVideoInfo info;
+  GstRadioacTV *filter = GST_RADIOACTV (vfilter);
   gint width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   filter->buf_width_blocks = width / 32;
   if (filter->buf_width_blocks > 255)
@@ -493,11 +468,6 @@ gst_radioactv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   return TRUE;
 
   /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 too_wide:
   {
     GST_DEBUG_OBJECT (filter, "frame too wide");
@@ -607,6 +577,7 @@ gst_radioactv_class_init (GstRadioacTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_radioactv_set_property;
   gobject_class->get_property = gst_radioactv_get_property;
@@ -644,10 +615,12 @@ gst_radioactv_class_init (GstRadioacTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_radioactv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_radioactv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_radioactv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_radioactv_start);
 
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_radioactv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_radioactv_transform_frame);
+
   makePalette ();
 }
 
diff --git a/gst/effectv/gstradioac.h b/gst/effectv/gstradioac.h
index a7a787a2f..6771289b2 100644
--- a/gst/effectv/gstradioac.h
+++ b/gst/effectv/gstradioac.h
@@ -53,8 +53,6 @@ struct _GstRadioacTV
   GstVideoFilter element;
 
   /* < private > */
-  GstVideoInfo info;
-
   gint mode;
   gint color;
   guint interval;
diff --git a/gst/effectv/gstrev.c b/gst/effectv/gstrev.c
index 6dce8877f..315ce4a85 100644
--- a/gst/effectv/gstrev.c
+++ b/gst/effectv/gstrev.c
@@ -97,43 +97,22 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     GST_STATIC_CAPS (CAPS_STR)
     );
 
-static gboolean
-gst_revtv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
-{
-  GstRevTV *filter = GST_REVTV (btrans);
-  GstVideoInfo info;
-
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
-}
-
 static GstFlowReturn
-gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
+gst_revtv_transform_frame (GstVideoFilter * vfilter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstRevTV *filter = GST_REVTV (trans);
+  GstRevTV *filter = GST_REVTV (vfilter);
   guint32 *src, *dest;
   gint width, height, sstride, dstride;
   guint32 *nsrc;
   gint y, x, R, G, B, yval;
   gint linespace, vscale;
   GstClockTime timestamp, stream_time;
-  GstVideoFrame in_frame, out_frame;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (vfilter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -141,19 +120,13 @@ gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   if (GST_CLOCK_TIME_IS_VALID (stream_time))
     gst_object_sync_values (GST_OBJECT (filter), stream_time);
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  sstride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
+  dstride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
 
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  sstride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
-  dstride = GST_VIDEO_FRAME_PLANE_STRIDE (&out_frame, 0);
-
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   /* Clear everything to black */
   memset (dest, 0, dstride * height * sizeof (guint32));
@@ -181,23 +154,7 @@ gst_revtv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   }
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static void
@@ -251,7 +208,7 @@ gst_revtv_class_init (GstRevTVClass * klass)
 {
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
-  GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_revtv_set_property;
   gobject_class->get_property = gst_revtv_get_property;
@@ -278,8 +235,8 @@ gst_revtv_class_init (GstRevTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_revtv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_revtv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_revtv_transform);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_revtv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstrev.h b/gst/effectv/gstrev.h
index deb8dd13f..fc40d8cc8 100644
--- a/gst/effectv/gstrev.h
+++ b/gst/effectv/gstrev.h
@@ -69,8 +69,6 @@ struct _GstRevTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
-
   gint vgrabtime;
   gint vgrab;
   gint linespace;
diff --git a/gst/effectv/gstripple.c b/gst/effectv/gstripple.c
index 170fd3a65..c48a8fde6 100644
--- a/gst/effectv/gstripple.c
+++ b/gst/effectv/gstripple.c
@@ -139,9 +139,12 @@ image_bgset_y (guint32 * src, gint16 * background, gint video_area)
 static gint
 setBackground (GstRippleTV * filter, guint32 * src)
 {
+  GstVideoInfo *info;
+
+  info = &GST_VIDEO_FILTER (filter)->in_info;
+
   image_bgset_y (src, filter->background,
-      GST_VIDEO_INFO_WIDTH (&filter->info) *
-      GST_VIDEO_INFO_HEIGHT (&filter->info));
+      GST_VIDEO_INFO_WIDTH (info) * GST_VIDEO_INFO_HEIGHT (info));
   filter->bg_is_set = TRUE;
 
   return 0;
@@ -182,9 +185,12 @@ motiondetect (GstRippleTV * filter, guint32 * src)
   gint width, height;
   gint *p, *q;
   gint x, y, h;
+  GstVideoInfo *info;
 
-  width = GST_VIDEO_INFO_WIDTH (&filter->info);
-  height = GST_VIDEO_INFO_HEIGHT (&filter->info);
+  info = &GST_VIDEO_FILTER (filter)->in_info;
+
+  width = GST_VIDEO_INFO_WIDTH (info);
+  height = GST_VIDEO_INFO_HEIGHT (info);
 
   if (!filter->bg_is_set)
     setBackground (filter, src);
@@ -304,12 +310,11 @@ raindrop (GstRippleTV * filter)
 }
 
 static GstFlowReturn
-gst_rippletv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_rippletv_transform_frame (GstVideoFilter * vfilter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstRippleTV *filter = GST_RIPPLETV (trans);
+  GstRippleTV *filter = GST_RIPPLETV (vfilter);
   guint32 *src, *dest;
-  GstVideoFrame in_frame, out_frame;
   gint x, y, i;
   gint dx, dy, o_dx;
   gint h, v;
@@ -318,9 +323,10 @@ gst_rippletv_transform (GstBaseTransform * trans, GstBuffer * in,
   gint8 *vp;
   GstClockTime timestamp, stream_time;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (vfilter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -328,14 +334,8 @@ gst_rippletv_transform (GstBaseTransform * trans, GstBuffer * in,
   if (GST_CLOCK_TIME_IS_VALID (stream_time))
     gst_object_sync_values (GST_OBJECT (filter), stream_time);
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
   GST_OBJECT_LOCK (filter);
   /* impact from the motion or rain drop */
@@ -346,8 +346,8 @@ gst_rippletv_transform (GstBaseTransform * trans, GstBuffer * in,
 
   m_w = filter->map_w;
   m_h = filter->map_h;
-  v_w = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  v_h = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  v_w = GST_VIDEO_FRAME_WIDTH (in_frame);
+  v_h = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   /* simulate surface wave */
 
@@ -441,41 +441,18 @@ gst_rippletv_transform (GstBaseTransform * trans, GstBuffer * in,
   }
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
-
 }
 
 static gboolean
-gst_rippletv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_rippletv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstRippleTV *filter = GST_RIPPLETV (btrans);
-  GstVideoInfo info;
+  GstRippleTV *filter = GST_RIPPLETV (vfilter);
   gint width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   GST_OBJECT_LOCK (filter);
   filter->map_h = height / 2 + 1;
@@ -505,13 +482,6 @@ gst_rippletv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   GST_OBJECT_UNLOCK (filter);
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static gboolean
@@ -601,6 +571,7 @@ gst_rippletv_class_init (GstRippleTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_rippletv_set_property;
   gobject_class->get_property = gst_rippletv_get_property;
@@ -628,10 +599,12 @@ gst_rippletv_class_init (GstRippleTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_rippletv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_rippletv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_rippletv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_rippletv_start);
 
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_rippletv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_rippletv_transform_frame);
+
   setTable ();
 }
 
diff --git a/gst/effectv/gstripple.h b/gst/effectv/gstripple.h
index 571db51d2..12242a230 100644
--- a/gst/effectv/gstripple.h
+++ b/gst/effectv/gstripple.h
@@ -53,8 +53,6 @@ struct _GstRippleTV
   GstVideoFilter element;
 
   /* < private > */
-  GstVideoInfo info;
-
   gint mode;
 
   gint16 *background;
diff --git a/gst/effectv/gstshagadelic.c b/gst/effectv/gstshagadelic.c
index 6e56430c6..dcc905a43 100644
--- a/gst/effectv/gstshagadelic.c
+++ b/gst/effectv/gstshagadelic.c
@@ -75,20 +75,14 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     );
 
 static gboolean
-gst_shagadelictv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_shagadelictv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstShagadelicTV *filter = GST_SHAGADELICTV (btrans);
-  GstVideoInfo info;
+  GstShagadelicTV *filter = GST_SHAGADELICTV (vfilter);
   gint width, height, area;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   area = width * height;
 
@@ -100,13 +94,6 @@ gst_shagadelictv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   gst_shagadelic_initialize (filter);
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static void
@@ -119,9 +106,10 @@ gst_shagadelic_initialize (GstShagadelicTV * filter)
   double xx, yy;
 #endif
   gint width, height;
+  GstVideoInfo *info = &GST_VIDEO_FILTER (filter)->in_info;
 
-  width = GST_VIDEO_INFO_WIDTH (&filter->info);
-  height = GST_VIDEO_INFO_HEIGHT (&filter->info);
+  width = GST_VIDEO_INFO_WIDTH (info);
+  height = GST_VIDEO_INFO_HEIGHT (info);
 
   i = 0;
   for (y = 0; y < height * 2; y++) {
@@ -171,28 +159,21 @@ gst_shagadelic_initialize (GstShagadelicTV * filter)
 }
 
 static GstFlowReturn
-gst_shagadelictv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_shagadelictv_transform_frame (GstVideoFilter * vfilter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstShagadelicTV *filter = GST_SHAGADELICTV (trans);
+  GstShagadelicTV *filter = GST_SHAGADELICTV (vfilter);
   guint32 *src, *dest;
   gint x, y;
   guint32 v;
   guint8 r, g, b;
-  GstVideoFrame in_frame, out_frame;
   gint width, height;
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
-
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   for (y = 0; y < height; y++) {
     for (x = 0; x < width; x++) {
@@ -226,23 +207,7 @@ gst_shagadelictv_transform (GstBaseTransform * trans, GstBuffer * in,
   filter->bx += filter->bvx;
   filter->by += filter->bvy;
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static void
@@ -266,7 +231,7 @@ gst_shagadelictv_class_init (GstShagadelicTVClass * klass)
 {
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
-  GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->finalize = gst_shagadelictv_finalize;
 
@@ -280,8 +245,9 @@ gst_shagadelictv_class_init (GstShagadelicTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_shagadelictv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_shagadelictv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_shagadelictv_transform);
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_shagadelictv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_shagadelictv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstshagadelic.h b/gst/effectv/gstshagadelic.h
index b2731a261..43d964dc1 100644
--- a/gst/effectv/gstshagadelic.h
+++ b/gst/effectv/gstshagadelic.h
@@ -51,8 +51,6 @@ struct _GstShagadelicTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
-
   guint8 *ripple;
   guint8 *spiral;
   guint8 phase;
diff --git a/gst/effectv/gststreak.c b/gst/effectv/gststreak.c
index 9ae451aee..d0ddb76a3 100644
--- a/gst/effectv/gststreak.c
+++ b/gst/effectv/gststreak.c
@@ -78,29 +78,22 @@ GST_STATIC_PAD_TEMPLATE ("sink",
 
 
 static GstFlowReturn
-gst_streaktv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_streaktv_transform_frame (GstVideoFilter * vfilter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstStreakTV *filter = GST_STREAKTV (trans);
+  GstStreakTV *filter = GST_STREAKTV (vfilter);
   guint32 *src, *dest;
-  GstVideoFrame in_frame, out_frame;
   gint i, cf;
   gint video_area, width, height;
   guint32 **planetable = filter->planetable;
   gint plane = filter->plane;
   guint stride_mask, stride_shift, stride;
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   video_area = width * height;
 
@@ -145,40 +138,18 @@ gst_streaktv_transform (GstBaseTransform * trans, GstBuffer * in,
   filter->plane = plane & (PLANES - 1);
   GST_OBJECT_UNLOCK (filter);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
 }
 
 static gboolean
-gst_streaktv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_streaktv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstStreakTV *filter = GST_STREAKTV (btrans);
-  GstVideoInfo info;
+  GstStreakTV *filter = GST_STREAKTV (vfilter);
   gint i, width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   if (filter->planebuffer)
     g_free (filter->planebuffer);
@@ -189,13 +160,6 @@ gst_streaktv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
     filter->planetable[i] = &filter->planebuffer[width * height * i];
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static gboolean
@@ -265,6 +229,7 @@ gst_streaktv_class_init (GstStreakTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_streaktv_set_property;
   gobject_class->get_property = gst_streaktv_get_property;
@@ -287,9 +252,11 @@ gst_streaktv_class_init (GstStreakTVClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_streaktv_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_streaktv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_streaktv_transform);
   trans_class->start = GST_DEBUG_FUNCPTR (gst_streaktv_start);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_streaktv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_streaktv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gststreak.h b/gst/effectv/gststreak.h
index fb96cade9..55198f4dd 100644
--- a/gst/effectv/gststreak.h
+++ b/gst/effectv/gststreak.h
@@ -55,8 +55,6 @@ struct _GstStreakTV
   GstVideoFilter element;
 
   /* < private > */
-  GstVideoInfo info;
-
   gboolean feedback;
 
   guint32 *planebuffer;
diff --git a/gst/effectv/gstvertigo.c b/gst/effectv/gstvertigo.c
index 592231990..44906f5ff 100644
--- a/gst/effectv/gstvertigo.c
+++ b/gst/effectv/gstvertigo.c
@@ -75,20 +75,14 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     );
 
 static gboolean
-gst_vertigotv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_vertigotv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstVertigoTV *filter = GST_VERTIGOTV (btrans);
-  GstVideoInfo info;
+  GstVertigoTV *filter = GST_VERTIGOTV (vfilter);
   gint area, width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   area = width * height;
 
@@ -100,13 +94,6 @@ gst_vertigotv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   filter->phase = 0;
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static void
@@ -117,11 +104,14 @@ gst_vertigotv_set_parms (GstVertigoTV * filter)
   double x, y;
   double dizz;
   gint width, height;
+  GstVideoInfo *info;
 
   dizz = sin (filter->phase) * 10 + sin (filter->phase * 1.9 + 5) * 5;
 
-  width = GST_VIDEO_INFO_WIDTH (&filter->info);
-  height = GST_VIDEO_INFO_HEIGHT (&filter->info);
+  info = &GST_VIDEO_FILTER (filter)->in_info;
+
+  width = GST_VIDEO_INFO_WIDTH (info);
+  height = GST_VIDEO_INFO_HEIGHT (info);
 
   x = width / 2;
   y = height / 2;
@@ -162,19 +152,19 @@ gst_vertigotv_set_parms (GstVertigoTV * filter)
 }
 
 static GstFlowReturn
-gst_vertigotv_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_vertigotv_transform_frame (GstVideoFilter * vfilter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstVertigoTV *filter = GST_VERTIGOTV (trans);
+  GstVertigoTV *filter = GST_VERTIGOTV (vfilter);
   guint32 *src, *dest, *p;
   guint32 v;
   gint x, y, ox, oy, i, width, height, area, sstride, dstride;
   GstClockTime timestamp, stream_time;
-  GstVideoFrame in_frame, out_frame;
 
-  timestamp = GST_BUFFER_TIMESTAMP (in);
+  timestamp = GST_BUFFER_TIMESTAMP (in_frame->buffer);
   stream_time =
-      gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
+      gst_segment_to_stream_time (&GST_BASE_TRANSFORM (filter)->segment,
+      GST_FORMAT_TIME, timestamp);
 
   GST_DEBUG_OBJECT (filter, "sync to %" GST_TIME_FORMAT,
       GST_TIME_ARGS (timestamp));
@@ -182,19 +172,13 @@ gst_vertigotv_transform (GstBaseTransform * trans, GstBuffer * in,
   if (GST_CLOCK_TIME_IS_VALID (stream_time))
     gst_object_sync_values (GST_OBJECT (filter), stream_time);
 
-  if (!gst_video_frame_map (&in_frame, &filter->info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&out_frame, &filter->info, out, GST_MAP_WRITE))
-    goto invalid_out;
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  sstride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
+  dstride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
 
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  sstride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
-  dstride = GST_VIDEO_FRAME_PLANE_STRIDE (&out_frame, 0);
-
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   area = width * height;
 
@@ -234,20 +218,6 @@ gst_vertigotv_transform (GstBaseTransform * trans, GstBuffer * in,
   filter->alt_buffer = p;
 
   return GST_FLOW_OK;
-
-  /* ERRORS */
-invalid_in:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid input frame");
-    return GST_FLOW_ERROR;
-  }
-invalid_out:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid output frame");
-    gst_video_frame_unmap (&in_frame);
-    return GST_FLOW_ERROR;
-  }
-
 }
 
 static gboolean
@@ -316,6 +286,7 @@ gst_vertigotv_class_init (GstVertigoTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->set_property = gst_vertigotv_set_property;
   gobject_class->get_property = gst_vertigotv_get_property;
@@ -340,8 +311,10 @@ gst_vertigotv_class_init (GstVertigoTVClass * klass)
       gst_static_pad_template_get (&gst_vertigotv_src_template));
 
   trans_class->start = GST_DEBUG_FUNCPTR (gst_vertigotv_start);
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_vertigotv_set_caps);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_vertigotv_transform);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_vertigotv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_vertigotv_transform_frame);
 }
 
 static void
diff --git a/gst/effectv/gstvertigo.h b/gst/effectv/gstvertigo.h
index 8e03da2e3..0081bf0e4 100644
--- a/gst/effectv/gstvertigo.h
+++ b/gst/effectv/gstvertigo.h
@@ -50,8 +50,6 @@ struct _GstVertigoTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
-
   guint32 *buffer;
   guint32 *current_buffer, *alt_buffer;
   gint dx, dy;
diff --git a/gst/effectv/gstwarp.c b/gst/effectv/gstwarp.c
index 80161a7b1..38d79d560 100644
--- a/gst/effectv/gstwarp.c
+++ b/gst/effectv/gstwarp.c
@@ -82,33 +82,20 @@ GST_STATIC_PAD_TEMPLATE ("sink",
     );
 
 static gboolean
-gst_warptv_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_warptv_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstWarpTV *filter = GST_WARPTV (btrans);
-  GstVideoInfo info;
+  GstWarpTV *filter = GST_WARPTV (vfilter);
   gint width, height;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  filter->info = info;
-
-  width = GST_VIDEO_INFO_WIDTH (&info);
-  height = GST_VIDEO_INFO_HEIGHT (&info);
+  width = GST_VIDEO_INFO_WIDTH (in_info);
+  height = GST_VIDEO_INFO_HEIGHT (in_info);
 
   g_free (filter->disttable);
   filter->disttable = g_malloc (width * height * sizeof (guint32));
   initDistTable (filter, width, height);
 
   return TRUE;
-
-  /* ERRORS */
-invalid_caps:
-  {
-    GST_DEBUG_OBJECT (filter, "invalid caps received");
-    return FALSE;
-  }
 }
 
 static gint32 sintable[1024 + 256];
@@ -152,9 +139,10 @@ initDistTable (GstWarpTV * filter, gint width, gint height)
 }
 
 static GstFlowReturn
-gst_warptv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
+gst_warptv_transform_frame (GstVideoFilter * filter, GstVideoFrame * in_frame,
+    GstVideoFrame * out_frame)
 {
-  GstWarpTV *warptv = GST_WARPTV (trans);
+  GstWarpTV *warptv = GST_WARPTV (filter);
   gint width, height;
   gint xw, yw, cw;
   gint32 c, i, x, y, dx, dy, maxx, maxy;
@@ -162,19 +150,15 @@ gst_warptv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   gint32 *ctable;
   guint32 *src, *dest;
   gint sstride, dstride;
-  GstVideoFrame in_frame, out_frame;
 
-  gst_video_frame_map (&in_frame, &warptv->info, in, GST_MAP_READ);
-  gst_video_frame_map (&out_frame, &warptv->info, out, GST_MAP_WRITE);
+  src = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+  dest = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
 
-  src = GST_VIDEO_FRAME_PLANE_DATA (&in_frame, 0);
-  dest = GST_VIDEO_FRAME_PLANE_DATA (&out_frame, 0);
+  sstride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0) / 4;
+  dstride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0) / 4;
 
-  sstride = GST_VIDEO_FRAME_PLANE_STRIDE (&in_frame, 0) / 4;
-  dstride = GST_VIDEO_FRAME_PLANE_STRIDE (&out_frame, 0) / 4;
-
-  width = GST_VIDEO_FRAME_WIDTH (&in_frame);
-  height = GST_VIDEO_FRAME_HEIGHT (&in_frame);
+  width = GST_VIDEO_FRAME_WIDTH (in_frame);
+  height = GST_VIDEO_FRAME_HEIGHT (in_frame);
 
   GST_OBJECT_LOCK (warptv);
   xw = (gint) (sin ((warptv->tval + 100) * M_PI / 128) * 30);
@@ -222,9 +206,6 @@ gst_warptv_transform (GstBaseTransform * trans, GstBuffer * in, GstBuffer * out)
   warptv->tval = (warptv->tval + 1) & 511;
   GST_OBJECT_UNLOCK (warptv);
 
-  gst_video_frame_unmap (&in_frame);
-  gst_video_frame_unmap (&out_frame);
-
   return GST_FLOW_OK;
 }
 
@@ -238,26 +219,6 @@ gst_warptv_start (GstBaseTransform * trans)
   return TRUE;
 }
 
-static gboolean
-gst_wraptv_decide_allocation (GstBaseTransform * trans, GstQuery * query)
-{
-  GstBufferPool *pool = NULL;
-  guint size, min, max, prefix, alignment;
-
-  gst_query_parse_allocation_params (query, &size, &min, &max, &prefix,
-      &alignment, &pool);
-
-  if (pool) {
-    GstStructure *config;
-
-    config = gst_buffer_pool_get_config (pool);
-    gst_buffer_pool_config_add_option (config,
-        GST_BUFFER_POOL_OPTION_VIDEO_META);
-    gst_buffer_pool_set_config (pool, config);
-  }
-  return TRUE;
-}
-
 static void
 gst_warptv_finalize (GObject * object)
 {
@@ -275,6 +236,7 @@ gst_warptv_class_init (GstWarpTVClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   gobject_class->finalize = gst_warptv_finalize;
 
@@ -289,10 +251,10 @@ gst_warptv_class_init (GstWarpTVClass * klass)
       gst_static_pad_template_get (&gst_warptv_src_template));
 
   trans_class->start = GST_DEBUG_FUNCPTR (gst_warptv_start);
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_warptv_set_caps);
-  trans_class->decide_allocation =
-      GST_DEBUG_FUNCPTR (gst_wraptv_decide_allocation);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_warptv_transform);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_warptv_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_warptv_transform_frame);
 
   initSinTable ();
 }
diff --git a/gst/effectv/gstwarp.h b/gst/effectv/gstwarp.h
index 4c53499d0..3fe48b34b 100644
--- a/gst/effectv/gstwarp.h
+++ b/gst/effectv/gstwarp.h
@@ -50,8 +50,6 @@ struct _GstWarpTV
   GstVideoFilter videofilter;
 
   /* < private > */
-  GstVideoInfo info;
-
   gint32 *disttable;
   gint32 ctable[1024];
   gint tval;
diff --git a/gst/videofilter/gstgamma.c b/gst/videofilter/gstgamma.c
index 401aced45..a654f2b78 100644
--- a/gst/videofilter/gstgamma.c
+++ b/gst/videofilter/gstgamma.c
@@ -94,10 +94,10 @@ static void gst_gamma_set_property (GObject * object, guint prop_id,
 static void gst_gamma_get_property (GObject * object, guint prop_id,
     GValue * value, GParamSpec * pspec);
 
-static gboolean gst_gamma_set_caps (GstBaseTransform * base, GstCaps * incaps,
-    GstCaps * outcaps);
-static GstFlowReturn gst_gamma_transform_ip (GstBaseTransform * transform,
-    GstBuffer * buf);
+static gboolean gst_gamma_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info);
+static GstFlowReturn gst_gamma_transform_frame_ip (GstVideoFilter * vfilter,
+    GstVideoFrame * frame);
 static void gst_gamma_before_transform (GstBaseTransform * transform,
     GstBuffer * buf);
 
@@ -111,6 +111,7 @@ gst_gamma_class_init (GstGammaClass * g_class)
   GObjectClass *gobject_class = (GObjectClass *) g_class;
   GstElementClass *gstelement_class = (GstElementClass *) g_class;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) g_class;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) g_class;
 
   GST_DEBUG_CATEGORY_INIT (gamma_debug, "gamma", 0, "gamma");
 
@@ -131,10 +132,12 @@ gst_gamma_class_init (GstGammaClass * g_class)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_gamma_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_gamma_set_caps);
-  trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_gamma_transform_ip);
   trans_class->before_transform =
       GST_DEBUG_FUNCPTR (gst_gamma_before_transform);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_gamma_set_info);
+  vfilter_class->transform_frame_ip =
+      GST_DEBUG_FUNCPTR (gst_gamma_transform_frame_ip);
 }
 
 static void
@@ -318,22 +321,16 @@ gst_gamma_packed_rgb_ip (GstGamma * gamma, GstVideoFrame * frame)
 }
 
 static gboolean
-gst_gamma_set_caps (GstBaseTransform * base, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_gamma_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstGamma *gamma = GST_GAMMA (base);
-  GstVideoInfo info;
+  GstGamma *gamma = GST_GAMMA (vfilter);
 
   GST_DEBUG_OBJECT (gamma,
       "setting caps: in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps,
       outcaps);
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  gamma->info = info;
-
-  switch (GST_VIDEO_INFO_FORMAT (&info)) {
+  switch (GST_VIDEO_INFO_FORMAT (in_info)) {
     case GST_VIDEO_FORMAT_I420:
     case GST_VIDEO_FORMAT_YV12:
     case GST_VIDEO_FORMAT_Y41B:
@@ -365,9 +362,9 @@ gst_gamma_set_caps (GstBaseTransform * base, GstCaps * incaps,
       goto invalid_caps;
       break;
   }
-
   return TRUE;
 
+  /* ERRORS */
 invalid_caps:
   {
     GST_ERROR_OBJECT (gamma, "Invalid caps: %" GST_PTR_FORMAT, incaps);
@@ -393,36 +390,24 @@ gst_gamma_before_transform (GstBaseTransform * base, GstBuffer * outbuf)
 }
 
 static GstFlowReturn
-gst_gamma_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
+gst_gamma_transform_frame_ip (GstVideoFilter * vfilter, GstVideoFrame * frame)
 {
-  GstGamma *gamma = GST_GAMMA (base);
-  GstVideoFrame frame;
+  GstGamma *gamma = GST_GAMMA (vfilter);
 
   if (!gamma->process)
     goto not_negotiated;
 
-  if (base->passthrough)
+  if (GST_BASE_TRANSFORM (vfilter)->passthrough)
     goto done;
 
-  if (!gst_video_frame_map (&frame, &gamma->info, outbuf, GST_MAP_READWRITE))
-    goto wrong_buffer;
-
   GST_OBJECT_LOCK (gamma);
-  gamma->process (gamma, &frame);
+  gamma->process (gamma, frame);
   GST_OBJECT_UNLOCK (gamma);
 
-  gst_video_frame_unmap (&frame);
-
 done:
   return GST_FLOW_OK;
 
   /* ERRORS */
-wrong_buffer:
-  {
-    GST_ELEMENT_ERROR (gamma, STREAM, FORMAT,
-        (NULL), ("Invalid buffer received"));
-    return GST_FLOW_ERROR;
-  }
 not_negotiated:
   {
     GST_ERROR_OBJECT (gamma, "Not negotiated yet");
diff --git a/gst/videofilter/gstgamma.h b/gst/videofilter/gstgamma.h
index b76dd973e..6a1b886d2 100644
--- a/gst/videofilter/gstgamma.h
+++ b/gst/videofilter/gstgamma.h
@@ -54,10 +54,6 @@ struct _GstGamma
   GstVideoFilter videofilter;
 
   /* < private > */
-
-  /* format */
-  GstVideoInfo info;
-
   /* properties */
   gdouble gamma;
 
diff --git a/gst/videofilter/gstvideobalance.c b/gst/videofilter/gstvideobalance.c
index 3c5a31e83..33080965a 100644
--- a/gst/videofilter/gstvideobalance.c
+++ b/gst/videofilter/gstvideobalance.c
@@ -354,21 +354,17 @@ gst_video_balance_packed_rgb (GstVideoBalance * videobalance,
 
 /* get notified of caps and plug in the correct process function */
 static gboolean
-gst_video_balance_set_caps (GstBaseTransform * base, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_video_balance_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstVideoBalance *videobalance = GST_VIDEO_BALANCE (base);
-  GstVideoInfo info;
+  GstVideoBalance *videobalance = GST_VIDEO_BALANCE (vfilter);
 
   GST_DEBUG_OBJECT (videobalance,
       "in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
 
   videobalance->process = NULL;
 
-  if (!gst_video_info_from_caps (&info, incaps))
-    goto invalid_caps;
-
-  switch (GST_VIDEO_INFO_FORMAT (&info)) {
+  switch (GST_VIDEO_INFO_FORMAT (in_info)) {
     case GST_VIDEO_FORMAT_I420:
     case GST_VIDEO_FORMAT_YV12:
     case GST_VIDEO_FORMAT_Y41B:
@@ -399,15 +395,9 @@ gst_video_balance_set_caps (GstBaseTransform * base, GstCaps * incaps,
       break;
   }
 
-  videobalance->info = info;
-
   return TRUE;
 
-invalid_caps:
-  {
-    GST_ERROR_OBJECT (videobalance, "Invalid caps: %" GST_PTR_FORMAT, incaps);
-    return FALSE;
-  }
+  /* ERRORS */
 unknown_format:
   {
     GST_ERROR_OBJECT (videobalance, "unknown format %" GST_PTR_FORMAT, incaps);
@@ -433,38 +423,26 @@ gst_video_balance_before_transform (GstBaseTransform * base, GstBuffer * buf)
 }
 
 static GstFlowReturn
-gst_video_balance_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
+gst_video_balance_transform_frame_ip (GstVideoFilter * vfilter,
+    GstVideoFrame * frame)
 {
-  GstVideoBalance *videobalance = GST_VIDEO_BALANCE (base);
-  GstVideoFrame frame;
+  GstVideoBalance *videobalance = GST_VIDEO_BALANCE (vfilter);
 
   if (!videobalance->process)
     goto not_negotiated;
 
   /* if no change is needed, we are done */
-  if (base->passthrough)
+  if (GST_BASE_TRANSFORM (vfilter)->passthrough)
     goto done;
 
-  if (!gst_video_frame_map (&frame, &videobalance->info, outbuf,
-          GST_MAP_READWRITE))
-    goto wrong_frame;
-
   GST_OBJECT_LOCK (videobalance);
-  videobalance->process (videobalance, &frame);
+  videobalance->process (videobalance, frame);
   GST_OBJECT_UNLOCK (videobalance);
 
-  gst_video_frame_unmap (&frame);
-
 done:
   return GST_FLOW_OK;
 
   /* ERRORS */
-wrong_frame:
-  {
-    GST_ELEMENT_ERROR (videobalance, STREAM, FORMAT,
-        (NULL), ("Invalid buffer received"));
-    return GST_FLOW_ERROR;
-  }
 not_negotiated:
   {
     GST_ERROR_OBJECT (videobalance, "Not negotiated yet");
@@ -501,6 +479,7 @@ gst_video_balance_class_init (GstVideoBalanceClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   GST_DEBUG_CATEGORY_INIT (videobalance_debug, "videobalance", 0,
       "videobalance");
@@ -535,11 +514,12 @@ gst_video_balance_class_init (GstVideoBalanceClass * klass)
   gst_element_class_add_pad_template (gstelement_class,
       gst_static_pad_template_get (&gst_video_balance_src_template));
 
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_balance_set_caps);
-  trans_class->transform_ip =
-      GST_DEBUG_FUNCPTR (gst_video_balance_transform_ip);
   trans_class->before_transform =
       GST_DEBUG_FUNCPTR (gst_video_balance_before_transform);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_balance_set_info);
+  vfilter_class->transform_frame_ip =
+      GST_DEBUG_FUNCPTR (gst_video_balance_transform_frame_ip);
 }
 
 static void
diff --git a/gst/videofilter/gstvideobalance.h b/gst/videofilter/gstvideobalance.h
index 1d3375a45..194144bb3 100644
--- a/gst/videofilter/gstvideobalance.h
+++ b/gst/videofilter/gstvideobalance.h
@@ -60,9 +60,6 @@ struct _GstVideoBalance {
   gdouble hue;
   gdouble saturation;
 
-  /* format */
-  GstVideoInfo info;
-
   /* tables */
   guint8 tabley[256];
   guint8 *tableu[256];
diff --git a/gst/videofilter/gstvideoflip.c b/gst/videofilter/gstvideoflip.c
index f9bad9aaa..9075a36e5 100644
--- a/gst/videofilter/gstvideoflip.c
+++ b/gst/videofilter/gstvideoflip.c
@@ -180,24 +180,6 @@ gst_video_flip_transform_caps (GstBaseTransform * trans,
   return ret;
 }
 
-static gboolean
-gst_video_flip_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
-    gsize * size)
-{
-  GstVideoInfo info;
-
-  if (!gst_video_info_from_caps (&info, caps))
-    return FALSE;
-
-  *size = info.size;
-
-  GST_DEBUG_OBJECT (btrans,
-      "our frame size is %" G_GSIZE_FORMAT " bytes (%dx%d)", *size, info.width,
-      info.height);
-
-  return TRUE;
-}
-
 static void
 gst_video_flip_planar_yuv (GstVideoFlip * videoflip, GstVideoFrame * dest,
     const GstVideoFrame * src)
@@ -765,20 +747,15 @@ gst_video_flip_y422 (GstVideoFlip * videoflip, GstVideoFrame * dest,
 
 
 static gboolean
-gst_video_flip_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
+gst_video_flip_set_info (GstVideoFilter * vfilter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
 {
-  GstVideoFlip *vf = GST_VIDEO_FLIP (btrans);
-  GstVideoInfo in_info, out_info;
+  GstVideoFlip *vf = GST_VIDEO_FLIP (vfilter);
   gboolean ret = FALSE;
 
   vf->process = NULL;
 
-  if (!gst_video_info_from_caps (&in_info, incaps)
-      || !gst_video_info_from_caps (&out_info, outcaps))
-    goto invalid_caps;
-
-  if (GST_VIDEO_INFO_FORMAT (&in_info) != GST_VIDEO_INFO_FORMAT (&out_info))
+  if (GST_VIDEO_INFO_FORMAT (in_info) != GST_VIDEO_INFO_FORMAT (out_info))
     goto invalid_caps;
 
   /* Check that they are correct */
@@ -787,11 +764,11 @@ gst_video_flip_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
     case GST_VIDEO_FLIP_METHOD_90L:
     case GST_VIDEO_FLIP_METHOD_TRANS:
     case GST_VIDEO_FLIP_METHOD_OTHER:
-      if ((in_info.width != out_info.height) ||
-          (in_info.height != out_info.width)) {
+      if ((in_info->width != out_info->height) ||
+          (in_info->height != out_info->width)) {
         GST_ERROR_OBJECT (vf, "we are inverting width and height but caps "
-            "are not correct : %dx%d to %dx%d", in_info.width,
-            in_info.height, out_info.width, out_info.height);
+            "are not correct : %dx%d to %dx%d", in_info->width,
+            in_info->height, out_info->width, out_info->height);
         goto beach;
       }
       break;
@@ -801,11 +778,11 @@ gst_video_flip_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
     case GST_VIDEO_FLIP_METHOD_180:
     case GST_VIDEO_FLIP_METHOD_HORIZ:
     case GST_VIDEO_FLIP_METHOD_VERT:
-      if ((in_info.width != out_info.width) ||
-          (in_info.height != out_info.height)) {
+      if ((in_info->width != out_info->width) ||
+          (in_info->height != out_info->height)) {
         GST_ERROR_OBJECT (vf, "we are keeping width and height but caps "
-            "are not correct : %dx%d to %dx%d", in_info.width,
-            in_info.height, out_info.width, out_info.height);
+            "are not correct : %dx%d to %dx%d", in_info->width,
+            in_info->height, out_info->width, out_info->height);
         goto beach;
       }
       break;
@@ -815,10 +792,8 @@ gst_video_flip_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
   }
 
   ret = TRUE;
-  vf->in_info = in_info;
-  vf->out_info = out_info;
 
-  switch (GST_VIDEO_INFO_FORMAT (&in_info)) {
+  switch (GST_VIDEO_INFO_FORMAT (in_info)) {
     case GST_VIDEO_FORMAT_I420:
     case GST_VIDEO_FORMAT_YV12:
     case GST_VIDEO_FORMAT_Y444:
@@ -873,34 +848,21 @@ gst_video_flip_before_transform (GstBaseTransform * trans, GstBuffer * in)
 }
 
 static GstFlowReturn
-gst_video_flip_transform (GstBaseTransform * trans, GstBuffer * in,
-    GstBuffer * out)
+gst_video_flip_transform_frame (GstVideoFilter * vfilter,
+    GstVideoFrame * in_frame, GstVideoFrame * out_frame)
 {
-  GstVideoFlip *videoflip = GST_VIDEO_FLIP (trans);
-  GstVideoFrame dest;
-  GstVideoFrame src;
+  GstVideoFlip *videoflip = GST_VIDEO_FLIP (vfilter);
 
   if (G_UNLIKELY (videoflip->process == NULL))
     goto not_negotiated;
 
-  if (!gst_video_frame_map (&src, &videoflip->in_info, in, GST_MAP_READ))
-    goto invalid_in;
-
-  if (!gst_video_frame_map (&dest, &videoflip->out_info, out, GST_MAP_WRITE))
-    goto invalid_out;
-
-  GST_LOG_OBJECT (videoflip, "videoflip: flipping %dx%d to %dx%d (%s)",
-      videoflip->in_info.width, videoflip->in_info.height,
-      videoflip->out_info.width, videoflip->out_info.height,
+  GST_LOG_OBJECT (videoflip, "videoflip: flipping (%s)",
       video_flip_methods[videoflip->method].value_nick);
 
   GST_OBJECT_LOCK (videoflip);
-  videoflip->process (videoflip, &dest, &src);
+  videoflip->process (videoflip, out_frame, in_frame);
   GST_OBJECT_UNLOCK (videoflip);
 
-  gst_video_frame_unmap (&src);
-  gst_video_frame_unmap (&dest);
-
   return GST_FLOW_OK;
 
 not_negotiated:
@@ -908,17 +870,6 @@ not_negotiated:
     GST_ERROR_OBJECT (videoflip, "Not negotiated yet");
     return GST_FLOW_NOT_NEGOTIATED;
   }
-invalid_in:
-  {
-    GST_ERROR_OBJECT (videoflip, "invalid input frame");
-    return GST_FLOW_OK;
-  }
-invalid_out:
-  {
-    GST_ERROR_OBJECT (videoflip, "invalid output frame");
-    gst_video_frame_unmap (&src);
-    return GST_FLOW_OK;
-  }
 }
 
 static gboolean
@@ -928,6 +879,7 @@ gst_video_flip_src_event (GstBaseTransform * trans, GstEvent * event)
   gdouble new_x, new_y, x, y;
   GstStructure *structure;
   gboolean ret;
+  GstVideoInfo *out_info = &GST_VIDEO_FILTER (trans)->out_info;
 
   GST_DEBUG_OBJECT (vf, "handling %s event", GST_EVENT_TYPE_NAME (event));
 
@@ -943,31 +895,31 @@ gst_video_flip_src_event (GstBaseTransform * trans, GstEvent * event)
         switch (vf->method) {
           case GST_VIDEO_FLIP_METHOD_90R:
             new_x = y;
-            new_y = vf->out_info.width - x;
+            new_y = out_info->width - x;
             break;
           case GST_VIDEO_FLIP_METHOD_90L:
-            new_x = vf->out_info.height - y;
+            new_x = out_info->height - y;
             new_y = x;
             break;
           case GST_VIDEO_FLIP_METHOD_OTHER:
-            new_x = vf->out_info.height - y;
-            new_y = vf->out_info.width - x;
+            new_x = out_info->height - y;
+            new_y = out_info->width - x;
             break;
           case GST_VIDEO_FLIP_METHOD_TRANS:
             new_x = y;
             new_y = x;
             break;
           case GST_VIDEO_FLIP_METHOD_180:
-            new_x = vf->out_info.width - x;
-            new_y = vf->out_info.height - y;
+            new_x = out_info->width - x;
+            new_y = out_info->height - y;
             break;
           case GST_VIDEO_FLIP_METHOD_HORIZ:
-            new_x = vf->out_info.width - x;
+            new_x = out_info->width - x;
             new_y = y;
             break;
           case GST_VIDEO_FLIP_METHOD_VERT:
             new_x = x;
-            new_y = vf->out_info.height - y;
+            new_y = out_info->height - y;
             break;
           default:
             new_x = x;
@@ -1047,6 +999,7 @@ gst_video_flip_class_init (GstVideoFlipClass * klass)
   GObjectClass *gobject_class = (GObjectClass *) klass;
   GstElementClass *gstelement_class = (GstElementClass *) klass;
   GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
+  GstVideoFilterClass *vfilter_class = (GstVideoFilterClass *) klass;
 
   GST_DEBUG_CATEGORY_INIT (video_flip_debug, "videoflip", 0, "videoflip");
 
@@ -1069,12 +1022,13 @@ gst_video_flip_class_init (GstVideoFlipClass * klass)
 
   trans_class->transform_caps =
       GST_DEBUG_FUNCPTR (gst_video_flip_transform_caps);
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_flip_set_caps);
-  trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_video_flip_get_unit_size);
-  trans_class->transform = GST_DEBUG_FUNCPTR (gst_video_flip_transform);
   trans_class->before_transform =
       GST_DEBUG_FUNCPTR (gst_video_flip_before_transform);
   trans_class->src_event = GST_DEBUG_FUNCPTR (gst_video_flip_src_event);
+
+  vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_flip_set_info);
+  vfilter_class->transform_frame =
+      GST_DEBUG_FUNCPTR (gst_video_flip_transform_frame);
 }
 
 static void
diff --git a/gst/videofilter/gstvideoflip.h b/gst/videofilter/gstvideoflip.h
index d520b03a3..dac4bdb5c 100644
--- a/gst/videofilter/gstvideoflip.h
+++ b/gst/videofilter/gstvideoflip.h
@@ -71,11 +71,8 @@ typedef struct _GstVideoFlipClass GstVideoFlipClass;
  */
 struct _GstVideoFlip {
   GstVideoFilter videofilter;
-  
+
   /* < private > */
-  GstVideoInfo in_info;
-  GstVideoInfo out_info;
-  
   GstVideoFlipMethod method;
   void (*process) (GstVideoFlip *videoflip, GstVideoFrame *dest, const GstVideoFrame *src);
 };