videomark/detect: port to 1.0

gst/videosignal/Makefile.am

@@ -2,12 +2,11 @@ plugin_LTLIBRARIES = libgstvideosignal.la
 
 libgstvideosignal_la_SOURCES = gstvideosignal.c   \
                                gstvideoanalyse.c \
-                               gstvideoanalyse.h
+                               gstvideoanalyse.h \
-
+                               gstvideodetect.c \
-#                               gstvideodetect.c   \
+                               gstvideodetect.h \
-#                               gstvideodetect.h   \
+                               gstvideomark.c \
-#                               gstvideomark.c \
+                               gstvideomark.h
-#                               gstvideomark.h
 
 libgstvideosignal_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
 			    $(GST_PLUGINS_BASE_CFLAGS)

gst/videosignal/gstvideodetect.c

@@ -13,10 +13,9 @@
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
- * Boston, MA 02110-1301, USA.
+ * Boston, MA 02110-1335, USA.
  */
-
 /**
  * SECTION:element-videodetect
  * @see_also: #GstVideoMark
@@ -79,13 +78,6 @@
  * <listitem>
  *   <para>
  *   #guint64
- *   <classname>&quot;data-uint64&quot;</classname>:
- *   the data-pattern found after the pattern or 0 when have-signal is #FALSE.
- *   </para>
- * </listitem>
- * <listitem>
- *   <para>
- *   #guint
  *   <classname>&quot;data&quot;</classname>:
  *   the data-pattern found after the pattern or 0 when have-signal is #FALSE.
  *   </para>
@@ -106,24 +98,31 @@
 #include "config.h"
 #endif
 
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/video/gstvideofilter.h>
 #include "gstvideodetect.h"
 
-#include <string.h>
+GST_DEBUG_CATEGORY_STATIC (gst_video_detect_debug_category);
-#include <math.h>
+#define GST_CAT_DEFAULT gst_video_detect_debug_category
 
-#include <gst/video/video.h>
+/* prototypes */
 
-/* GstVideoDetect signals and args */
 
-#define DEFAULT_MESSAGE              TRUE
+static void gst_video_detect_set_property (GObject * object,
-#define DEFAULT_PATTERN_WIDTH        4
+    guint property_id, const GValue * value, GParamSpec * pspec);
-#define DEFAULT_PATTERN_HEIGHT       16
+static void gst_video_detect_get_property (GObject * object,
-#define DEFAULT_PATTERN_COUNT        4
+    guint property_id, GValue * value, GParamSpec * pspec);
-#define DEFAULT_PATTERN_DATA_COUNT   5
+static void gst_video_detect_dispose (GObject * object);
-#define DEFAULT_PATTERN_CENTER       0.5
+static void gst_video_detect_finalize (GObject * object);
-#define DEFAULT_PATTERN_SENSITIVITY  0.3
+
-#define DEFAULT_LEFT_OFFSET          0
+static gboolean gst_video_detect_start (GstBaseTransform * trans);
-#define DEFAULT_BOTTOM_OFFSET        0
+static gboolean gst_video_detect_stop (GstBaseTransform * trans);
+static gboolean gst_video_detect_set_info (GstVideoFilter * filter,
+    GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
+    GstVideoInfo * out_info);
+static GstFlowReturn gst_video_detect_transform_frame_ip (GstVideoFilter *
+    filter, GstVideoFrame * frame);
 
 enum
 {
@@ -139,328 +138,62 @@ enum
   PROP_BOTTOM_OFFSET
 };
 
-GST_DEBUG_CATEGORY_STATIC (video_detect_debug);
+#define DEFAULT_MESSAGE              TRUE
-#define GST_CAT_DEFAULT video_detect_debug
+#define DEFAULT_PATTERN_WIDTH        4
+#define DEFAULT_PATTERN_HEIGHT       16
+#define DEFAULT_PATTERN_COUNT        4
+#define DEFAULT_PATTERN_DATA_COUNT   5
+#define DEFAULT_PATTERN_CENTER       0.5
+#define DEFAULT_PATTERN_SENSITIVITY  0.3
+#define DEFAULT_LEFT_OFFSET          0
+#define DEFAULT_BOTTOM_OFFSET        0
 
-static GstStaticPadTemplate gst_video_detect_src_template =
+/* pad templates */
-GST_STATIC_PAD_TEMPLATE ("src",
-    GST_PAD_SRC,
-    GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV
-        ("{ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }"))
-    );
 
-static GstStaticPadTemplate gst_video_detect_sink_template =
+#define VIDEO_CAPS \
-GST_STATIC_PAD_TEMPLATE ("sink",
+    GST_VIDEO_CAPS_MAKE( \
-    GST_PAD_SINK,
+        "{ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }")
-    GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV
-        ("{ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }"))
-    );
 
-static GstVideoFilterClass *parent_class = NULL;
 
-static gboolean
+/* class initialization */
-gst_video_detect_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
-    GstCaps * outcaps)
-{
-  GstVideoDetect *vf;
-  GstStructure *in_s;
-  guint32 fourcc;
-  gboolean ret;
 
-  vf = GST_VIDEO_DETECT (btrans);
+G_DEFINE_TYPE_WITH_CODE (GstVideoDetect, gst_video_detect,
-
+    GST_TYPE_VIDEO_FILTER,
-  in_s = gst_caps_get_structure (incaps, 0);
+    GST_DEBUG_CATEGORY_INIT (gst_video_detect_debug_category, "videodetect", 0,
-
+        "debug category for videodetect element"));
-  ret = gst_structure_get_int (in_s, "width", &vf->width);
-  ret &= gst_structure_get_int (in_s, "height", &vf->height);
-  ret &= gst_structure_get_fourcc (in_s, "format", &fourcc);
-
-  if (ret)
-    vf->format = gst_video_format_from_fourcc (fourcc);
-
-  return ret;
-}
 
 static void
-gst_video_detect_post_message (GstVideoDetect * videodetect, GstBuffer * buffer,
+gst_video_detect_class_init (GstVideoDetectClass * klass)
-    guint64 data)
 {
-  GstBaseTransform *trans;
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  GstMessage *m;
+  GstBaseTransformClass *base_transform_class =
-  guint64 duration, timestamp, running_time, stream_time;
+      GST_BASE_TRANSFORM_CLASS (klass);
+  GstVideoFilterClass *video_filter_class = GST_VIDEO_FILTER_CLASS (klass);
 
-  trans = GST_BASE_TRANSFORM_CAST (videodetect);
+  gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
+      gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+          gst_caps_from_string (VIDEO_CAPS)));
+  gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
+      gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+          gst_caps_from_string (VIDEO_CAPS)));
 
-  /* get timestamps */
+  gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
-  timestamp = GST_BUFFER_TIMESTAMP (buffer);
+      "Video detecter", "Filter/Effect/Video",
-  duration = GST_BUFFER_DURATION (buffer);
-  running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
-      timestamp);
-  stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
-      timestamp);
-
-  /* post message */
-  m = gst_message_new_element (GST_OBJECT_CAST (videodetect),
-      gst_structure_new ("GstVideoDetect",
-          "have-pattern", G_TYPE_BOOLEAN, videodetect->in_pattern,
-          "timestamp", G_TYPE_UINT64, timestamp,
-          "stream-time", G_TYPE_UINT64, stream_time,
-          "running-time", G_TYPE_UINT64, running_time,
-          "duration", G_TYPE_UINT64, duration,
-          "data-uint64", G_TYPE_UINT64, data,
-          "data", G_TYPE_UINT, (guint) MIN (data, G_MAXINT), NULL));
-  gst_element_post_message (GST_ELEMENT_CAST (videodetect), m);
-}
-
-static gdouble
-gst_video_detect_calc_brightness (GstVideoDetect * videodetect, guint8 * data,
-    gint width, gint height, gint row_stride, gint pixel_stride)
-{
-  gint i, j;
-  guint64 sum;
-
-  sum = 0;
-  for (i = 0; i < height; i++) {
-    for (j = 0; j < width; j++) {
-      sum += data[pixel_stride * j];
-    }
-    data += row_stride;
-  }
-  return sum / (255.0 * width * height);
-}
-
-static void
-gst_video_detect_yuv (GstVideoDetect * videodetect, GstBuffer * buffer)
-{
-  GstVideoFormat format;
-  gdouble brightness;
-  gint i, pw, ph, row_stride, pixel_stride, offset;
-  gint width, height, req_width, req_height;
-  guint8 *d, *data;
-  guint64 pattern_data;
-
-  data = GST_BUFFER_DATA (buffer);
-
-  format = videodetect->format;
-  width = videodetect->width;
-  height = videodetect->height;
-
-  pw = videodetect->pattern_width;
-  ph = videodetect->pattern_height;
-  row_stride = gst_video_format_get_row_stride (format, 0, width);
-  pixel_stride = gst_video_format_get_pixel_stride (format, 0);
-  offset = gst_video_format_get_component_offset (format, 0, width, height);
-
-  req_width =
-      (videodetect->pattern_count + videodetect->pattern_data_count) * pw +
-      videodetect->left_offset;
-  req_height = videodetect->bottom_offset + ph;
-  if (req_width > width || req_height > height) {
-    goto no_pattern;
-  }
-
-  /* analyse the bottom left pixels */
-  for (i = 0; i < videodetect->pattern_count; i++) {
-    d = data + offset;
-    /* move to start of bottom left, adjust for offsets */
-    d += row_stride * (height - ph - videodetect->bottom_offset) +
-        pixel_stride * videodetect->left_offset;
-    /* move to i-th pattern */
-    d += pixel_stride * pw * i;
-
-    /* calc brightness of width * height box */
-    brightness = gst_video_detect_calc_brightness (videodetect, d, pw, ph,
-        row_stride, pixel_stride);
-
-    GST_DEBUG_OBJECT (videodetect, "brightness %f", brightness);
-
-    if (i & 1) {
-      /* odd pixels must be white, all pixels darker than the center +
-       * sensitivity are considered wrong. */
-      if (brightness <
-          (videodetect->pattern_center + videodetect->pattern_sensitivity))
-        goto no_pattern;
-    } else {
-      /* even pixels must be black, pixels lighter than the center - sensitivity
-       * are considered wrong. */
-      if (brightness >
-          (videodetect->pattern_center - videodetect->pattern_sensitivity))
-        goto no_pattern;
-    }
-  }
-  GST_DEBUG_OBJECT (videodetect, "found pattern");
-
-  pattern_data = 0;
-
-  /* get the data of the pattern */
-  for (i = 0; i < videodetect->pattern_data_count; i++) {
-    d = data + offset;
-    /* move to start of bottom left, adjust for offsets */
-    d += row_stride * (height - ph - videodetect->bottom_offset) +
-        pixel_stride * videodetect->left_offset;
-    /* move after the fixed pattern */
-    d += pixel_stride * (videodetect->pattern_count * pw);
-    /* move to i-th pattern data */
-    d += pixel_stride * pw * i;
-
-    /* calc brightness of width * height box */
-    brightness = gst_video_detect_calc_brightness (videodetect, d, pw, ph,
-        row_stride, pixel_stride);
-    /* update pattern, we just use the center to decide between black and white. */
-    pattern_data <<= 1;
-    if (brightness > videodetect->pattern_center)
-      pattern_data |= 1;
-  }
-
-  GST_DEBUG_OBJECT (videodetect, "have data %" G_GUINT64_FORMAT, pattern_data);
-
-  videodetect->in_pattern = TRUE;
-  gst_video_detect_post_message (videodetect, buffer, pattern_data);
-
-  return;
-
-no_pattern:
-  {
-    GST_DEBUG_OBJECT (videodetect, "no pattern found");
-    if (videodetect->in_pattern) {
-      videodetect->in_pattern = FALSE;
-      gst_video_detect_post_message (videodetect, buffer, 0);
-    }
-    return;
-  }
-}
-
-static GstFlowReturn
-gst_video_detect_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
-{
-  GstVideoDetect *videodetect;
-  GstFlowReturn ret = GST_FLOW_OK;
-
-  videodetect = GST_VIDEO_DETECT (trans);
-
-  gst_video_detect_yuv (videodetect, buf);
-
-  return ret;
-}
-
-static void
-gst_video_detect_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstVideoDetect *videodetect;
-
-  videodetect = GST_VIDEO_DETECT (object);
-
-  switch (prop_id) {
-    case PROP_MESSAGE:
-      videodetect->message = g_value_get_boolean (value);
-      break;
-    case PROP_PATTERN_WIDTH:
-      videodetect->pattern_width = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_HEIGHT:
-      videodetect->pattern_height = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_COUNT:
-      videodetect->pattern_count = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_DATA_COUNT:
-      videodetect->pattern_data_count = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_CENTER:
-      videodetect->pattern_center = g_value_get_double (value);
-      break;
-    case PROP_PATTERN_SENSITIVITY:
-      videodetect->pattern_sensitivity = g_value_get_double (value);
-      break;
-    case PROP_LEFT_OFFSET:
-      videodetect->left_offset = g_value_get_int (value);
-      break;
-    case PROP_BOTTOM_OFFSET:
-      videodetect->bottom_offset = g_value_get_int (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_video_detect_get_property (GObject * object, guint prop_id, GValue * value,
-    GParamSpec * pspec)
-{
-  GstVideoDetect *videodetect;
-
-  videodetect = GST_VIDEO_DETECT (object);
-
-  switch (prop_id) {
-    case PROP_MESSAGE:
-      g_value_set_boolean (value, videodetect->message);
-      break;
-    case PROP_PATTERN_WIDTH:
-      g_value_set_int (value, videodetect->pattern_width);
-      break;
-    case PROP_PATTERN_HEIGHT:
-      g_value_set_int (value, videodetect->pattern_height);
-      break;
-    case PROP_PATTERN_COUNT:
-      g_value_set_int (value, videodetect->pattern_count);
-      break;
-    case PROP_PATTERN_DATA_COUNT:
-      g_value_set_int (value, videodetect->pattern_data_count);
-      break;
-    case PROP_PATTERN_CENTER:
-      g_value_set_double (value, videodetect->pattern_center);
-      break;
-    case PROP_PATTERN_SENSITIVITY:
-      g_value_set_double (value, videodetect->pattern_sensitivity);
-      break;
-    case PROP_LEFT_OFFSET:
-      g_value_set_int (value, videodetect->left_offset);
-      break;
-    case PROP_BOTTOM_OFFSET:
-      g_value_set_int (value, videodetect->bottom_offset);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_video_detect_base_init (gpointer g_class)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
-  gst_element_class_set_static_metadata (element_class, "Video detecter",
-      "Filter/Effect/Video",
       "Detect patterns in a video signal", "Wim Taymans <wim@fluendo.com>");
 
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&gst_video_detect_sink_template));
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&gst_video_detect_src_template));
-}
-
-static void
-gst_video_detect_class_init (gpointer klass, gpointer class_data)
-{
-  GObjectClass *gobject_class;
-  GstBaseTransformClass *trans_class;
-
-  gobject_class = (GObjectClass *) klass;
-  trans_class = (GstBaseTransformClass *) klass;
-
-  parent_class = g_type_class_peek_parent (klass);
-
   gobject_class->set_property = gst_video_detect_set_property;
   gobject_class->get_property = gst_video_detect_get_property;
+  gobject_class->dispose = gst_video_detect_dispose;
+  gobject_class->finalize = gst_video_detect_finalize;
+  base_transform_class->start = GST_DEBUG_FUNCPTR (gst_video_detect_start);
+  base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_video_detect_stop);
+  video_filter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_detect_set_info);
+  video_filter_class->transform_frame_ip =
+      GST_DEBUG_FUNCPTR (gst_video_detect_transform_frame_ip);
 
   g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_MESSAGE,
       g_param_spec_boolean ("message", "Message",
-          "Post statics messages",
+          "Post detected data as bus messages",
           DEFAULT_MESSAGE,
           G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
   g_object_class_install_property (gobject_class, PROP_PATTERN_WIDTH,
@@ -503,47 +236,304 @@ gst_video_detect_class_init (gpointer klass, gpointer class_data)
           "The offset from the bottom border where the pattern starts", 0,
           G_MAXINT, DEFAULT_BOTTOM_OFFSET,
           G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_detect_set_caps);
-  trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_video_detect_transform_ip);
-  trans_class->passthrough_on_same_caps = TRUE;
-
-  GST_DEBUG_CATEGORY_INIT (video_detect_debug, "videodetect", 0,
-      "Video detect");
 }
 
 static void
-gst_video_detect_init (GTypeInstance * instance, gpointer g_class)
+gst_video_detect_init (GstVideoDetect * videodetect)
 {
-  GstVideoDetect *videodetect;
+}
 
-  videodetect = GST_VIDEO_DETECT (instance);
+void
+gst_video_detect_set_property (GObject * object, guint property_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (object);
 
-  GST_DEBUG_OBJECT (videodetect, "gst_video_detect_init");
+  GST_DEBUG_OBJECT (videodetect, "set_property");
 
+  switch (property_id) {
+    case PROP_MESSAGE:
+      videodetect->message = g_value_get_boolean (value);
+      break;
+    case PROP_PATTERN_WIDTH:
+      videodetect->pattern_width = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_HEIGHT:
+      videodetect->pattern_height = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_COUNT:
+      videodetect->pattern_count = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_DATA_COUNT:
+      videodetect->pattern_data_count = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_CENTER:
+      videodetect->pattern_center = g_value_get_double (value);
+      break;
+    case PROP_PATTERN_SENSITIVITY:
+      videodetect->pattern_sensitivity = g_value_get_double (value);
+      break;
+    case PROP_LEFT_OFFSET:
+      videodetect->left_offset = g_value_get_int (value);
+      break;
+    case PROP_BOTTOM_OFFSET:
+      videodetect->bottom_offset = g_value_get_int (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+void
+gst_video_detect_get_property (GObject * object, guint property_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (object);
+
+  GST_DEBUG_OBJECT (videodetect, "get_property");
+
+  switch (property_id) {
+    case PROP_MESSAGE:
+      g_value_set_boolean (value, videodetect->message);
+      break;
+    case PROP_PATTERN_WIDTH:
+      g_value_set_int (value, videodetect->pattern_width);
+      break;
+    case PROP_PATTERN_HEIGHT:
+      g_value_set_int (value, videodetect->pattern_height);
+      break;
+    case PROP_PATTERN_COUNT:
+      g_value_set_int (value, videodetect->pattern_count);
+      break;
+    case PROP_PATTERN_DATA_COUNT:
+      g_value_set_int (value, videodetect->pattern_data_count);
+      break;
+    case PROP_PATTERN_CENTER:
+      g_value_set_double (value, videodetect->pattern_center);
+      break;
+    case PROP_PATTERN_SENSITIVITY:
+      g_value_set_double (value, videodetect->pattern_sensitivity);
+      break;
+    case PROP_LEFT_OFFSET:
+      g_value_set_int (value, videodetect->left_offset);
+      break;
+    case PROP_BOTTOM_OFFSET:
+      g_value_set_int (value, videodetect->bottom_offset);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+void
+gst_video_detect_dispose (GObject * object)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (object);
+
+  GST_DEBUG_OBJECT (videodetect, "dispose");
+
+  /* clean up as possible.  may be called multiple times */
+
+  G_OBJECT_CLASS (gst_video_detect_parent_class)->dispose (object);
+}
+
+void
+gst_video_detect_finalize (GObject * object)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (object);
+
+  GST_DEBUG_OBJECT (videodetect, "finalize");
+
+  /* clean up object here */
+
+  G_OBJECT_CLASS (gst_video_detect_parent_class)->finalize (object);
+}
+
+static gboolean
+gst_video_detect_start (GstBaseTransform * trans)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (trans);
+
+  GST_DEBUG_OBJECT (videodetect, "start");
+
+  return TRUE;
+}
+
+static gboolean
+gst_video_detect_stop (GstBaseTransform * trans)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (trans);
+
+  GST_DEBUG_OBJECT (videodetect, "stop");
+
+  return TRUE;
+}
+
+static gboolean
+gst_video_detect_set_info (GstVideoFilter * filter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
+{
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (filter);
+
+  GST_DEBUG_OBJECT (videodetect, "set_info");
+
+  return TRUE;
+}
+
+static void
+gst_video_detect_post_message (GstVideoDetect * videodetect, GstBuffer * buffer,
+    guint64 data)
+{
+  GstBaseTransform *trans;
+  GstMessage *m;
+  guint64 duration, timestamp, running_time, stream_time;
+
+  trans = GST_BASE_TRANSFORM_CAST (videodetect);
+
+  /* get timestamps */
+  timestamp = GST_BUFFER_TIMESTAMP (buffer);
+  duration = GST_BUFFER_DURATION (buffer);
+  running_time = gst_segment_to_running_time (&trans->segment, GST_FORMAT_TIME,
+      timestamp);
+  stream_time = gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME,
+      timestamp);
+
+  /* post message */
+  m = gst_message_new_element (GST_OBJECT_CAST (videodetect),
+      gst_structure_new ("GstVideoDetect",
+          "have-pattern", G_TYPE_BOOLEAN, videodetect->in_pattern,
+          "timestamp", G_TYPE_UINT64, timestamp,
+          "stream-time", G_TYPE_UINT64, stream_time,
+          "running-time", G_TYPE_UINT64, running_time,
+          "duration", G_TYPE_UINT64, duration,
+          "data", G_TYPE_UINT64, data, NULL));
+  gst_element_post_message (GST_ELEMENT_CAST (videodetect), m);
+}
+
+static gdouble
+gst_video_detect_calc_brightness (GstVideoDetect * videodetect, guint8 * data,
+    gint width, gint height, gint row_stride, gint pixel_stride)
+{
+  gint i, j;
+  guint64 sum;
+
+  sum = 0;
+  for (i = 0; i < height; i++) {
+    for (j = 0; j < width; j++) {
+      sum += data[pixel_stride * j];
+    }
+    data += row_stride;
+  }
+  return sum / (255.0 * width * height);
+}
+
+static void
+gst_video_detect_yuv (GstVideoDetect * videodetect, GstVideoFrame * frame)
+{
+  gdouble brightness;
+  gint i, pw, ph, row_stride, pixel_stride;
+  gint width, height, req_width, req_height;
+  guint8 *d;
+  guint64 pattern_data;
+
+  width = frame->info.width;
+  height = frame->info.height;
+
+  pw = videodetect->pattern_width;
+  ph = videodetect->pattern_height;
+  row_stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
+  pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
+
+  req_width =
+      (videodetect->pattern_count + videodetect->pattern_data_count) * pw +
+      videodetect->left_offset;
+  req_height = videodetect->bottom_offset + ph;
+  if (req_width > width || req_height > height) {
+    goto no_pattern;
+  }
+
+  /* analyse the bottom left pixels */
+  for (i = 0; i < videodetect->pattern_count; i++) {
+    d = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
+    /* move to start of bottom left, adjust for offsets */
+    d += row_stride * (height - ph - videodetect->bottom_offset) +
+        pixel_stride * videodetect->left_offset;
+    /* move to i-th pattern */
+    d += pixel_stride * pw * i;
+
+    /* calc brightness of width * height box */
+    brightness = gst_video_detect_calc_brightness (videodetect, d, pw, ph,
+        row_stride, pixel_stride);
+
+    GST_DEBUG_OBJECT (videodetect, "brightness %f", brightness);
+
+    if (i & 1) {
+      /* odd pixels must be white, all pixels darker than the center +
+       * sensitivity are considered wrong. */
+      if (brightness <
+          (videodetect->pattern_center + videodetect->pattern_sensitivity))
+        goto no_pattern;
+    } else {
+      /* even pixels must be black, pixels lighter than the center - sensitivity
+       * are considered wrong. */
+      if (brightness >
+          (videodetect->pattern_center - videodetect->pattern_sensitivity))
+        goto no_pattern;
+    }
+  }
+  GST_DEBUG_OBJECT (videodetect, "found pattern");
+
+  pattern_data = 0;
+
+  /* get the data of the pattern */
+  for (i = 0; i < videodetect->pattern_data_count; i++) {
+    d = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
+    /* move to start of bottom left, adjust for offsets */
+    d += row_stride * (height - ph - videodetect->bottom_offset) +
+        pixel_stride * videodetect->left_offset;
+    /* move after the fixed pattern */
+    d += pixel_stride * (videodetect->pattern_count * pw);
+    /* move to i-th pattern data */
+    d += pixel_stride * pw * i;
+
+    /* calc brightness of width * height box */
+    brightness = gst_video_detect_calc_brightness (videodetect, d, pw, ph,
+        row_stride, pixel_stride);
+    /* update pattern, we just use the center to decide between black and white. */
+    pattern_data <<= 1;
+    if (brightness > videodetect->pattern_center)
+      pattern_data |= 1;
+  }
+
+  GST_DEBUG_OBJECT (videodetect, "have data %" G_GUINT64_FORMAT, pattern_data);
+
+  videodetect->in_pattern = TRUE;
+  gst_video_detect_post_message (videodetect, frame->buffer, pattern_data);
+
+  return;
+
+no_pattern:
+  {
+    GST_DEBUG_OBJECT (videodetect, "no pattern found");
+    if (videodetect->in_pattern) {
       videodetect->in_pattern = FALSE;
+      gst_video_detect_post_message (videodetect, frame->buffer, 0);
+    }
+    return;
+  }
 }
 
-GType
+static GstFlowReturn
-gst_video_detect_get_type (void)
+gst_video_detect_transform_frame_ip (GstVideoFilter * filter,
+    GstVideoFrame * frame)
 {
-  static GType video_detect_type = 0;
+  GstVideoDetect *videodetect = GST_VIDEO_DETECT (filter);
 
-  if (!video_detect_type) {
+  GST_DEBUG_OBJECT (videodetect, "transform_frame_ip");
-    static const GTypeInfo video_detect_info = {
-      sizeof (GstVideoDetectClass),
-      gst_video_detect_base_init,
-      NULL,
-      gst_video_detect_class_init,
-      NULL,
-      NULL,
-      sizeof (GstVideoDetect),
-      0,
-      gst_video_detect_init,
-    };
 
-    video_detect_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
+  gst_video_detect_yuv (videodetect, frame);
-        "GstVideoDetect", &video_detect_info, 0);
+
-  }
+  return GST_FLOW_OK;
-  return video_detect_type;
 }

gst/videosignal/gstvideodetect.h

@@ -17,38 +17,26 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GST_VIDEO_DETECT_H__
+#ifndef _GST_VIDEO_DETECT_H_
-#define __GST_VIDEO_DETECT_H__
+#define _GST_VIDEO_DETECT_H_
 
-#include <gst/video/gstvideofilter.h>
 #include <gst/video/video.h>
+#include <gst/video/gstvideofilter.h>
 
 G_BEGIN_DECLS
 
-#define GST_TYPE_VIDEO_DETECT \
+#define GST_TYPE_VIDEO_DETECT   (gst_video_detect_get_type())
-  (gst_video_detect_get_type())
+#define GST_VIDEO_DETECT(obj)   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_DETECT,GstVideoDetect))
-#define GST_VIDEO_DETECT(obj) \
+#define GST_VIDEO_DETECT_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_DETECT,GstVideoDetectClass))
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_DETECT,GstVideoDetect))
+#define GST_IS_VIDEO_DETECT(obj)   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_DETECT))
-#define GST_VIDEO_DETECT_CLASS(klass) \
+#define GST_IS_VIDEO_DETECT_CLASS(obj)   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_DETECT))
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_DETECT,GstVideoDetectClass))
-#define GST_IS_VIDEO_DETECT(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_DETECT))
-#define GST_IS_VIDEO_DETECT_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_DETECT))
 
 typedef struct _GstVideoDetect GstVideoDetect;
 typedef struct _GstVideoDetectClass GstVideoDetectClass;
 
-/**
+struct _GstVideoDetect
- * GstVideoDetect:
+{
- *
+  GstVideoFilter base_videodetect;
- * Opaque datastructure.
- */
-struct _GstVideoDetect {
-  GstVideoFilter videofilter;
-  
-  gint width, height;
-  GstVideoFormat format;
 
   gboolean message;
   gint pattern_width;
@@ -63,12 +51,13 @@ struct _GstVideoDetect {
   gboolean in_pattern;
 };
 
-struct _GstVideoDetectClass {
+struct _GstVideoDetectClass
-  GstVideoFilterClass parent_class;
+{
+  GstVideoFilterClass base_videodetect_class;
 };
 
 GType gst_video_detect_get_type (void);
 
 G_END_DECLS
 
-#endif /* __GST_VIDEO_DETECT_H__ */
+#endif

gst/videosignal/gstvideomark.c

@@ -13,10 +13,9 @@
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
- * Boston, MA 02110-1301, USA.
+ * Boston, MA 02110-1335, USA.
  */
-
 /**
  * SECTION:element-videomark
  * @see_also: #GstVideoDetect
@@ -48,14 +47,44 @@
 #include "config.h"
 #endif
 
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/video/gstvideofilter.h>
 #include "gstvideomark.h"
 
-#include <string.h>
+GST_DEBUG_CATEGORY_STATIC (gst_video_mark_debug_category);
-#include <math.h>
+#define GST_CAT_DEFAULT gst_video_mark_debug_category
 
-#include <gst/video/video.h>
+/* prototypes */
 
-/* GstVideoMark signals and args */
+
+static void gst_video_mark_set_property (GObject * object,
+    guint property_id, const GValue * value, GParamSpec * pspec);
+static void gst_video_mark_get_property (GObject * object,
+    guint property_id, GValue * value, GParamSpec * pspec);
+static void gst_video_mark_dispose (GObject * object);
+static void gst_video_mark_finalize (GObject * object);
+
+static gboolean gst_video_mark_start (GstBaseTransform * trans);
+static gboolean gst_video_mark_stop (GstBaseTransform * trans);
+static gboolean gst_video_mark_set_info (GstVideoFilter * filter,
+    GstCaps * incaps, GstVideoInfo * in_info, GstCaps * outcaps,
+    GstVideoInfo * out_info);
+static GstFlowReturn gst_video_mark_transform_frame_ip (GstVideoFilter * filter,
+    GstVideoFrame * frame);
+
+enum
+{
+  PROP_0,
+  PROP_PATTERN_WIDTH,
+  PROP_PATTERN_HEIGHT,
+  PROP_PATTERN_COUNT,
+  PROP_PATTERN_DATA_COUNT,
+  PROP_PATTERN_DATA,
+  PROP_ENABLED,
+  PROP_LEFT_OFFSET,
+  PROP_BOTTOM_OFFSET
+};
 
 #define DEFAULT_PATTERN_WIDTH        4
 #define DEFAULT_PATTERN_HEIGHT       16
@@ -66,62 +95,227 @@
 #define DEFAULT_LEFT_OFFSET          0
 #define DEFAULT_BOTTOM_OFFSET        0
 
-enum
+/* pad templates */
+
+#define VIDEO_CAPS \
+    GST_VIDEO_CAPS_MAKE( \
+        "{ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }")
+
+
+/* class initialization */
+
+G_DEFINE_TYPE_WITH_CODE (GstVideoMark, gst_video_mark, GST_TYPE_VIDEO_FILTER,
+    GST_DEBUG_CATEGORY_INIT (gst_video_mark_debug_category, "videomark", 0,
+        "debug category for videomark element"));
+
+static void
+gst_video_mark_class_init (GstVideoMarkClass * klass)
 {
-  PROP_0,
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  PROP_PATTERN_WIDTH,
+  GstBaseTransformClass *base_transform_class =
-  PROP_PATTERN_HEIGHT,
+      GST_BASE_TRANSFORM_CLASS (klass);
-  PROP_PATTERN_COUNT,
+  GstVideoFilterClass *video_filter_class = GST_VIDEO_FILTER_CLASS (klass);
-  PROP_PATTERN_DATA_COUNT,
-  PROP_PATTERN_DATA,
-  PROP_PATTERN_DATA_64,
-  PROP_ENABLED,
-  PROP_LEFT_OFFSET,
-  PROP_BOTTOM_OFFSET
-};
 
-GST_DEBUG_CATEGORY_STATIC (video_mark_debug);
+  gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
-#define GST_CAT_DEFAULT video_mark_debug
+      gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
+          gst_caps_from_string (VIDEO_CAPS)));
+  gst_element_class_add_pad_template (GST_ELEMENT_CLASS (klass),
+      gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
+          gst_caps_from_string (VIDEO_CAPS)));
 
-static GstStaticPadTemplate gst_video_mark_src_template =
+  gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
-GST_STATIC_PAD_TEMPLATE ("src",
+      "Video marker", "Filter/Effect/Video",
-    GST_PAD_SRC,
+      "Marks a video signal with a pattern", "Wim Taymans <wim@fluendo.com>");
-    GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV
-        ("{ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }"))
-    );
 
-static GstStaticPadTemplate gst_video_mark_sink_template =
+  gobject_class->set_property = gst_video_mark_set_property;
-GST_STATIC_PAD_TEMPLATE ("sink",
+  gobject_class->get_property = gst_video_mark_get_property;
-    GST_PAD_SINK,
+  gobject_class->dispose = gst_video_mark_dispose;
-    GST_PAD_ALWAYS,
+  gobject_class->finalize = gst_video_mark_finalize;
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV
+  base_transform_class->start = GST_DEBUG_FUNCPTR (gst_video_mark_start);
-        ("{ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }"))
+  base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_video_mark_stop);
-    );
+  video_filter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_mark_set_info);
+  video_filter_class->transform_frame_ip =
+      GST_DEBUG_FUNCPTR (gst_video_mark_transform_frame_ip);
 
-static GstVideoFilterClass *parent_class = NULL;
+  g_object_class_install_property (gobject_class, PROP_PATTERN_WIDTH,
+      g_param_spec_int ("pattern-width", "Pattern width",
+          "The width of the pattern markers", 1, G_MAXINT,
+          DEFAULT_PATTERN_WIDTH,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_PATTERN_HEIGHT,
+      g_param_spec_int ("pattern-height", "Pattern height",
+          "The height of the pattern markers", 1, G_MAXINT,
+          DEFAULT_PATTERN_HEIGHT,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_PATTERN_COUNT,
+      g_param_spec_int ("pattern-count", "Pattern count",
+          "The number of pattern markers", 0, G_MAXINT,
+          DEFAULT_PATTERN_COUNT,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_PATTERN_DATA_COUNT,
+      g_param_spec_int ("pattern-data-count", "Pattern data count",
+          "The number of extra data pattern markers", 0, 64,
+          DEFAULT_PATTERN_DATA_COUNT,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_PATTERN_DATA,
+      g_param_spec_uint64 ("pattern-data", "Pattern data",
+          "The extra data pattern markers", 0, G_MAXUINT64,
+          DEFAULT_PATTERN_DATA,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_ENABLED,
+      g_param_spec_boolean ("enabled", "Enabled",
+          "Enable or disable the filter",
+          DEFAULT_ENABLED,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_LEFT_OFFSET,
+      g_param_spec_int ("left-offset", "Left Offset",
+          "The offset from the left border where the pattern starts", 0,
+          G_MAXINT, DEFAULT_LEFT_OFFSET,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_BOTTOM_OFFSET,
+      g_param_spec_int ("bottom-offset", "Bottom Offset",
+          "The offset from the bottom border where the pattern starts", 0,
+          G_MAXINT, DEFAULT_BOTTOM_OFFSET,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+
+}
+
+static void
+gst_video_mark_init (GstVideoMark * videomark)
+{
+}
+
+void
+gst_video_mark_set_property (GObject * object, guint property_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (object);
+
+  GST_DEBUG_OBJECT (videomark, "set_property");
+
+  switch (property_id) {
+    case PROP_PATTERN_WIDTH:
+      videomark->pattern_width = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_HEIGHT:
+      videomark->pattern_height = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_COUNT:
+      videomark->pattern_count = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_DATA_COUNT:
+      videomark->pattern_data_count = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_DATA:
+      videomark->pattern_data = g_value_get_uint64 (value);
+      break;
+    case PROP_ENABLED:
+      videomark->enabled = g_value_get_boolean (value);
+      break;
+    case PROP_LEFT_OFFSET:
+      videomark->left_offset = g_value_get_int (value);
+      break;
+    case PROP_BOTTOM_OFFSET:
+      videomark->bottom_offset = g_value_get_int (value);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+void
+gst_video_mark_get_property (GObject * object, guint property_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (object);
+
+  GST_DEBUG_OBJECT (videomark, "get_property");
+
+  switch (property_id) {
+    case PROP_PATTERN_WIDTH:
+      g_value_set_int (value, videomark->pattern_width);
+      break;
+    case PROP_PATTERN_HEIGHT:
+      g_value_set_int (value, videomark->pattern_height);
+      break;
+    case PROP_PATTERN_COUNT:
+      g_value_set_int (value, videomark->pattern_count);
+      break;
+    case PROP_PATTERN_DATA_COUNT:
+      g_value_set_int (value, videomark->pattern_data_count);
+      break;
+    case PROP_PATTERN_DATA:
+      g_value_set_uint64 (value, videomark->pattern_data);
+      break;
+    case PROP_ENABLED:
+      g_value_set_boolean (value, videomark->enabled);
+      break;
+    case PROP_LEFT_OFFSET:
+      g_value_set_int (value, videomark->left_offset);
+      break;
+    case PROP_BOTTOM_OFFSET:
+      g_value_set_int (value, videomark->bottom_offset);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+void
+gst_video_mark_dispose (GObject * object)
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (object);
+
+  GST_DEBUG_OBJECT (videomark, "dispose");
+
+  /* clean up as possible.  may be called multiple times */
+
+  G_OBJECT_CLASS (gst_video_mark_parent_class)->dispose (object);
+}
+
+void
+gst_video_mark_finalize (GObject * object)
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (object);
+
+  GST_DEBUG_OBJECT (videomark, "finalize");
+
+  /* clean up object here */
+
+  G_OBJECT_CLASS (gst_video_mark_parent_class)->finalize (object);
+}
 
 static gboolean
-gst_video_mark_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
+gst_video_mark_start (GstBaseTransform * trans)
-    GstCaps * outcaps)
 {
-  GstVideoMark *vf;
+  GstVideoMark *videomark = GST_VIDEO_MARK (trans);
-  GstStructure *in_s;
-  guint32 fourcc;
-  gboolean ret;
 
-  vf = GST_VIDEO_MARK (btrans);
+  GST_DEBUG_OBJECT (videomark, "start");
 
-  in_s = gst_caps_get_structure (incaps, 0);
+  return TRUE;
+}
 
-  ret = gst_structure_get_int (in_s, "width", &vf->width);
+static gboolean
-  ret &= gst_structure_get_int (in_s, "height", &vf->height);
+gst_video_mark_stop (GstBaseTransform * trans)
-  ret &= gst_structure_get_fourcc (in_s, "format", &fourcc);
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (trans);
 
-  if (ret)
+  GST_DEBUG_OBJECT (videomark, "stop");
-    vf->format = gst_video_format_from_fourcc (fourcc);
 
-  return ret;
+  return TRUE;
+}
+
+static gboolean
+gst_video_mark_set_info (GstVideoFilter * filter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (filter);
+
+  GST_DEBUG_OBJECT (videomark, "set_info");
+
+  return TRUE;
 }
 
 static void
@@ -139,26 +333,21 @@ gst_video_mark_draw_box (GstVideoMark * videomark, guint8 * data,
 }
 
 static GstFlowReturn
-gst_video_mark_yuv (GstVideoMark * videomark, GstBuffer * buffer)
+gst_video_mark_yuv (GstVideoMark * videomark, GstVideoFrame * frame)
 {
-  GstVideoFormat format;
+  gint i, pw, ph, row_stride, pixel_stride;
-  gint i, pw, ph, row_stride, pixel_stride, offset;
   gint width, height, req_width, req_height;
-  guint8 *d, *data;
+  guint8 *d;
   guint64 pattern_shift;
   guint8 color;
 
-  data = GST_BUFFER_DATA (buffer);
+  width = frame->info.width;
-
+  height = frame->info.height;
-  format = videomark->format;
-  width = videomark->width;
-  height = videomark->height;
 
   pw = videomark->pattern_width;
   ph = videomark->pattern_height;
-  row_stride = gst_video_format_get_row_stride (format, 0, width);
+  row_stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
-  pixel_stride = gst_video_format_get_pixel_stride (format, 0);
+  pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
-  offset = gst_video_format_get_component_offset (format, 0, width, height);
 
   req_width =
       (videomark->pattern_count + videomark->pattern_data_count) * pw +
@@ -173,7 +362,7 @@ gst_video_mark_yuv (GstVideoMark * videomark, GstBuffer * buffer)
 
   /* draw the bottom left pixels */
   for (i = 0; i < videomark->pattern_count; i++) {
-    d = data + offset;
+    d = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
     /* move to start of bottom left */
     d += row_stride * (height - ph - videomark->bottom_offset) +
         pixel_stride * videomark->left_offset;
@@ -195,7 +384,7 @@ gst_video_mark_yuv (GstVideoMark * videomark, GstBuffer * buffer)
 
   /* get the data of the pattern */
   for (i = 0; i < videomark->pattern_data_count; i++) {
-    d = data + offset;
+    d = GST_VIDEO_FRAME_COMP_DATA (frame, 0);
     /* move to start of bottom left, adjust for offsets */
     d += row_stride * (height - ph - videomark->bottom_offset) +
         pixel_stride * videomark->left_offset;
@@ -218,214 +407,17 @@ gst_video_mark_yuv (GstVideoMark * videomark, GstBuffer * buffer)
   return GST_FLOW_OK;
 }
 
-static GstFlowReturn
-gst_video_mark_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
-{
-  GstVideoMark *videomark;
-  GstFlowReturn ret = GST_FLOW_OK;
 
-  videomark = GST_VIDEO_MARK (trans);
+static GstFlowReturn
+gst_video_mark_transform_frame_ip (GstVideoFilter * filter,
+    GstVideoFrame * frame)
+{
+  GstVideoMark *videomark = GST_VIDEO_MARK (filter);
+
+  GST_DEBUG_OBJECT (videomark, "transform_frame_ip");
 
   if (videomark->enabled)
-    return gst_video_mark_yuv (videomark, buf);
+    return gst_video_mark_yuv (videomark, frame);
 
-  return ret;
+  return GST_FLOW_OK;
-}
-
-static void
-gst_video_mark_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstVideoMark *videomark;
-
-  videomark = GST_VIDEO_MARK (object);
-
-  switch (prop_id) {
-    case PROP_PATTERN_WIDTH:
-      videomark->pattern_width = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_HEIGHT:
-      videomark->pattern_height = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_COUNT:
-      videomark->pattern_count = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_DATA_COUNT:
-      videomark->pattern_data_count = g_value_get_int (value);
-      break;
-    case PROP_PATTERN_DATA_64:
-      videomark->pattern_data = g_value_get_uint64 (value);
-      break;
-    case PROP_PATTERN_DATA:
-      videomark->pattern_data = g_value_get_int (value);
-      break;
-    case PROP_ENABLED:
-      videomark->enabled = g_value_get_boolean (value);
-      break;
-    case PROP_LEFT_OFFSET:
-      videomark->left_offset = g_value_get_int (value);
-      break;
-    case PROP_BOTTOM_OFFSET:
-      videomark->bottom_offset = g_value_get_int (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_video_mark_get_property (GObject * object, guint prop_id, GValue * value,
-    GParamSpec * pspec)
-{
-  GstVideoMark *videomark;
-
-  videomark = GST_VIDEO_MARK (object);
-
-  switch (prop_id) {
-    case PROP_PATTERN_WIDTH:
-      g_value_set_int (value, videomark->pattern_width);
-      break;
-    case PROP_PATTERN_HEIGHT:
-      g_value_set_int (value, videomark->pattern_height);
-      break;
-    case PROP_PATTERN_COUNT:
-      g_value_set_int (value, videomark->pattern_count);
-      break;
-    case PROP_PATTERN_DATA_COUNT:
-      g_value_set_int (value, videomark->pattern_data_count);
-      break;
-    case PROP_PATTERN_DATA_64:
-      g_value_set_uint64 (value, videomark->pattern_data);
-      break;
-    case PROP_PATTERN_DATA:
-      g_value_set_int (value, MIN (videomark->pattern_data, G_MAXINT));
-      break;
-    case PROP_ENABLED:
-      g_value_set_boolean (value, videomark->enabled);
-      break;
-    case PROP_LEFT_OFFSET:
-      g_value_set_int (value, videomark->left_offset);
-      break;
-    case PROP_BOTTOM_OFFSET:
-      g_value_set_int (value, videomark->bottom_offset);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_video_mark_base_init (gpointer g_class)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
-  gst_element_class_set_static_metadata (element_class, "Video marker",
-      "Filter/Effect/Video",
-      "Marks a video signal with a pattern", "Wim Taymans <wim@fluendo.com>");
-
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&gst_video_mark_sink_template));
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&gst_video_mark_src_template));
-}
-
-static void
-gst_video_mark_class_init (gpointer klass, gpointer class_data)
-{
-  GObjectClass *gobject_class;
-  GstBaseTransformClass *trans_class;
-
-  gobject_class = (GObjectClass *) klass;
-  trans_class = (GstBaseTransformClass *) klass;
-
-  parent_class = g_type_class_peek_parent (klass);
-
-  gobject_class->set_property = gst_video_mark_set_property;
-  gobject_class->get_property = gst_video_mark_get_property;
-
-  g_object_class_install_property (gobject_class, PROP_PATTERN_WIDTH,
-      g_param_spec_int ("pattern-width", "Pattern width",
-          "The width of the pattern markers", 1, G_MAXINT,
-          DEFAULT_PATTERN_WIDTH,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_PATTERN_HEIGHT,
-      g_param_spec_int ("pattern-height", "Pattern height",
-          "The height of the pattern markers", 1, G_MAXINT,
-          DEFAULT_PATTERN_HEIGHT,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_PATTERN_COUNT,
-      g_param_spec_int ("pattern-count", "Pattern count",
-          "The number of pattern markers", 0, G_MAXINT,
-          DEFAULT_PATTERN_COUNT,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_PATTERN_DATA_COUNT,
-      g_param_spec_int ("pattern-data-count", "Pattern data count",
-          "The number of extra data pattern markers", 0, 64,
-          DEFAULT_PATTERN_DATA_COUNT,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_PATTERN_DATA_64,
-      g_param_spec_uint64 ("pattern-data-uint64", "Pattern data",
-          "The extra data pattern markers", 0, G_MAXUINT64,
-          DEFAULT_PATTERN_DATA,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_PATTERN_DATA,
-      g_param_spec_int ("pattern-data", "Pattern data",
-          "The extra data pattern markers", 0, G_MAXINT,
-          DEFAULT_PATTERN_DATA, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_ENABLED,
-      g_param_spec_boolean ("enabled", "Enabled",
-          "Enable or disable the filter",
-          DEFAULT_ENABLED,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_LEFT_OFFSET,
-      g_param_spec_int ("left-offset", "Left Offset",
-          "The offset from the left border where the pattern starts", 0,
-          G_MAXINT, DEFAULT_LEFT_OFFSET,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-  g_object_class_install_property (gobject_class, PROP_BOTTOM_OFFSET,
-      g_param_spec_int ("bottom-offset", "Bottom Offset",
-          "The offset from the bottom border where the pattern starts", 0,
-          G_MAXINT, DEFAULT_BOTTOM_OFFSET,
-          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
-
-  trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_mark_set_caps);
-  trans_class->transform_ip = GST_DEBUG_FUNCPTR (gst_video_mark_transform_ip);
-
-  GST_DEBUG_CATEGORY_INIT (video_mark_debug, "videomark", 0, "Video mark");
-}
-
-static void
-gst_video_mark_init (GTypeInstance * instance, gpointer g_class)
-{
-  GstVideoMark *videomark;
-
-  videomark = GST_VIDEO_MARK (instance);
-
-  GST_DEBUG_OBJECT (videomark, "gst_video_mark_init");
-}
-
-GType
-gst_video_mark_get_type (void)
-{
-  static GType video_mark_type = 0;
-
-  if (!video_mark_type) {
-    static const GTypeInfo video_mark_info = {
-      sizeof (GstVideoMarkClass),
-      gst_video_mark_base_init,
-      NULL,
-      gst_video_mark_class_init,
-      NULL,
-      NULL,
-      sizeof (GstVideoMark),
-      0,
-      gst_video_mark_init,
-    };
-
-    video_mark_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
-        "GstVideoMark", &video_mark_info, 0);
-  }
-  return video_mark_type;
 }

gst/videosignal/gstvideomark.h

@@ -17,39 +17,28 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#ifndef __GST_VIDEO_MARK_H__
+#ifndef _GST_VIDEO_MARK_H_
-#define __GST_VIDEO_MARK_H__
+#define _GST_VIDEO_MARK_H_
 
-#include <gst/video/gstvideofilter.h>
 #include <gst/video/video.h>
+#include <gst/video/gstvideofilter.h>
 
 G_BEGIN_DECLS
 
-#define GST_TYPE_VIDEO_MARK \
+#define GST_TYPE_VIDEO_MARK   (gst_video_mark_get_type())
-  (gst_video_mark_get_type())
+#define GST_VIDEO_MARK(obj)   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MARK,GstVideoMark))
-#define GST_VIDEO_MARK(obj) \
+#define GST_VIDEO_MARK_CLASS(klass)   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MARK,GstVideoMarkClass))
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_MARK,GstVideoMark))
+#define GST_IS_VIDEO_MARK(obj)   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MARK))
-#define GST_VIDEO_MARK_CLASS(klass) \
+#define GST_IS_VIDEO_MARK_CLASS(obj)   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MARK))
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_MARK,GstVideoMarkClass))
-#define GST_IS_VIDEO_MARK(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_MARK))
-#define GST_IS_VIDEO_MARK_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_MARK))
 
 typedef struct _GstVideoMark GstVideoMark;
 typedef struct _GstVideoMarkClass GstVideoMarkClass;
 
-/**
+struct _GstVideoMark
- * GstVideoMark:
+{
- *
+  GstVideoFilter base_videomark;
- * Opaque datastructure.
- */
-struct _GstVideoMark {
-  GstVideoFilter videofilter;
-  
-  gint width, height;
-  GstVideoFormat format;
 
+  /* properties */
   gint pattern_width;
   gint pattern_height;
   gint pattern_count;
@@ -60,12 +49,13 @@ struct _GstVideoMark {
   gint bottom_offset;
 };
 
-struct _GstVideoMarkClass {
+struct _GstVideoMarkClass
-  GstVideoFilterClass parent_class;
+{
+  GstVideoFilterClass base_videomark_class;
 };
 
 GType gst_video_mark_get_type (void);
 
 G_END_DECLS
 
-#endif /* __GST_VIDEO_MARK_H__ */
+#endif

gst/videosignal/gstvideosignal.c

@@ -33,7 +33,6 @@ plugin_init (GstPlugin * plugin)
   res = gst_element_register (plugin, "videoanalyse", GST_RANK_NONE,
       GST_TYPE_VIDEO_ANALYSE);
 
-#if 0
   /* FIXME under no circumstances is anyone allowed to revive the
    * element formerly known as videodetect without changing the name
    * first.  XOXO  --ds  */
@@ -43,7 +42,6 @@ plugin_init (GstPlugin * plugin)
 
   res &= gst_element_register (plugin, "videomark", GST_RANK_NONE,
       GST_TYPE_VIDEO_MARK);
-#endif
 
   return res;
 }