videomark/detect: rename to simplevideomark[detect]

1 files changed, 557 insertions, 0 deletions

diff --git a/gst/videosignal/gstsimplevideomarkdetect.c b/gst/videosignal/gstsimplevideomarkdetect.c
new file mode 100644
index 000000000..5c36bcad7
--- /dev/null
+++ b/gst/videosignal/gstsimplevideomarkdetect.c
@@ -0,0 +1,557 @@
+/* GStreamer
+ * Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * 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 Street, Suite 500,
+ * Boston, MA 02110-1335, USA.
+ */
+/**
+ * SECTION:element-simplevideomarkdetect
+ * @see_also: #GstVideoMark
+ *
+ * This plugin detects #GstSimpleVideoMarkDetect:pattern-count squares in the bottom left
+ * corner of the video frames. The squares have a width and height of
+ * respectively #GstSimpleVideoMarkDetect:pattern-width and #GstSimpleVideoMarkDetect:pattern-height.
+ * Even squares must be black and odd squares must be white.
+ * 
+ * When the pattern has been found, #GstSimpleVideoMarkDetect:pattern-data-count squares
+ * after the pattern squares are read as a bitarray. White squares represent a 1
+ * bit and black squares a 0 bit. The bitarray will will included in the element
+ * message that is posted (see below).
+ * 
+ * After the pattern has been found and the data pattern has been read, an
+ * element message called <classname>&quot;GstSimpleVideoMarkDetect&quot;</classname> will
+ * be posted on the bus. If the pattern is no longer found in the frame, the
+ * same element message is posted with the have-pattern field set to #FALSE.
+ * The message is only posted if the #GstSimpleVideoMarkDetect:message property is #TRUE.
+ * 
+ * The message's structure contains these fields:
+ * <itemizedlist>
+ * <listitem>
+ *   <para>
+ *   #gboolean
+ *   <classname>&quot;have-pattern&quot;</classname>:
+ *   if the pattern was found. This field will be set to #TRUE for as long as
+ *   the pattern was found in the frame and set to FALSE for the first frame
+ *   that does not contain the pattern anymore.
+ *   </para>
+ * </listitem>
+ * <listitem>
+ *   <para>
+ *   #GstClockTime
+ *   <classname>&quot;timestamp&quot;</classname>:
+ *   the timestamp of the buffer that triggered the message.
+ *   </para>
+ * </listitem>
+ * <listitem>
+ *   <para>
+ *   #GstClockTime
+ *   <classname>&quot;stream-time&quot;</classname>:
+ *   the stream time of the buffer.
+ *   </para>
+ * </listitem>
+ * <listitem>
+ *   <para>
+ *   #GstClockTime
+ *   <classname>&quot;running-time&quot;</classname>:
+ *   the running_time of the buffer.
+ *   </para>
+ * </listitem>
+ * <listitem>
+ *   <para>
+ *   #GstClockTime
+ *   <classname>&quot;duration&quot;</classname>:
+ *   the duration of the buffer.
+ *   </para>
+ * </listitem>
+ * <listitem>
+ *   <para>
+ *   #guint64
+ *   <classname>&quot;data&quot;</classname>:
+ *   the data-pattern found after the pattern or 0 when have-signal is #FALSE.
+ *   </para>
+ * </listitem>
+ * </itemizedlist>
+ * 
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch videotestsrc ! simplevideomarkdetect ! videoconvert ! ximagesink
+ * ]|
+ * </refsect2>
+ *
+ * Last reviewed on 2007-05-30 (0.10.5)
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/video/gstvideofilter.h>
+#include "gstsimplevideomarkdetect.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_video_detect_debug_category);
+#define GST_CAT_DEFAULT gst_video_detect_debug_category
+
+/* prototypes */
+
+
+static void gst_video_detect_set_property (GObject * object,
+    guint property_id, const GValue * value, GParamSpec * pspec);
+static void gst_video_detect_get_property (GObject * object,
+    guint property_id, GValue * value, GParamSpec * pspec);
+static void gst_video_detect_dispose (GObject * object);
+static void gst_video_detect_finalize (GObject * object);
+
+static gboolean gst_video_detect_start (GstBaseTransform * trans);
+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
+{
+  PROP_0,
+  PROP_MESSAGE,
+  PROP_PATTERN_WIDTH,
+  PROP_PATTERN_HEIGHT,
+  PROP_PATTERN_COUNT,
+  PROP_PATTERN_DATA_COUNT,
+  PROP_PATTERN_CENTER,
+  PROP_PATTERN_SENSITIVITY,
+  PROP_LEFT_OFFSET,
+  PROP_BOTTOM_OFFSET
+};
+
+#define DEFAULT_MESSAGE              TRUE
+#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
+
+/* 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 (GstSimpleVideoMarkDetect, gst_video_detect,
+    GST_TYPE_VIDEO_FILTER,
+    GST_DEBUG_CATEGORY_INIT (gst_video_detect_debug_category,
+        "simplevideomarkdetect", 0,
+        "debug category for simplevideomarkdetect element"));
+
+static void
+gst_video_detect_class_init (GstSimpleVideoMarkDetectClass * klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GstBaseTransformClass *base_transform_class =
+      GST_BASE_TRANSFORM_CLASS (klass);
+  GstVideoFilterClass *video_filter_class = GST_VIDEO_FILTER_CLASS (klass);
+
+  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)));
+
+  gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
+      "Video detecter", "Filter/Effect/Video",
+      "Detect patterns in a video signal", "Wim Taymans <wim@fluendo.com>");
+
+  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 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,
+      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, G_MAXINT,
+          DEFAULT_PATTERN_DATA_COUNT,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_PATTERN_CENTER,
+      g_param_spec_double ("pattern-center", "Pattern center",
+          "The center of the black/white separation (0.0 = lowest, 1.0 highest)",
+          0.0, 1.0, DEFAULT_PATTERN_CENTER,
+          G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
+  g_object_class_install_property (gobject_class, PROP_PATTERN_SENSITIVITY,
+      g_param_spec_double ("pattern-sensitivity", "Pattern sensitivity",
+          "The sensitivity around the center for detecting the markers "
+          "(0.0 = lowest, 1.0 highest)", 0.0, 1.0, DEFAULT_PATTERN_SENSITIVITY,
+          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_detect_init (GstSimpleVideoMarkDetect * simplevideomarkdetect)
+{
+}
+
+void
+gst_video_detect_set_property (GObject * object, guint property_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (object);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "set_property");
+
+  switch (property_id) {
+    case PROP_MESSAGE:
+      simplevideomarkdetect->message = g_value_get_boolean (value);
+      break;
+    case PROP_PATTERN_WIDTH:
+      simplevideomarkdetect->pattern_width = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_HEIGHT:
+      simplevideomarkdetect->pattern_height = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_COUNT:
+      simplevideomarkdetect->pattern_count = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_DATA_COUNT:
+      simplevideomarkdetect->pattern_data_count = g_value_get_int (value);
+      break;
+    case PROP_PATTERN_CENTER:
+      simplevideomarkdetect->pattern_center = g_value_get_double (value);
+      break;
+    case PROP_PATTERN_SENSITIVITY:
+      simplevideomarkdetect->pattern_sensitivity = g_value_get_double (value);
+      break;
+    case PROP_LEFT_OFFSET:
+      simplevideomarkdetect->left_offset = g_value_get_int (value);
+      break;
+    case PROP_BOTTOM_OFFSET:
+      simplevideomarkdetect->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)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (object);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "get_property");
+
+  switch (property_id) {
+    case PROP_MESSAGE:
+      g_value_set_boolean (value, simplevideomarkdetect->message);
+      break;
+    case PROP_PATTERN_WIDTH:
+      g_value_set_int (value, simplevideomarkdetect->pattern_width);
+      break;
+    case PROP_PATTERN_HEIGHT:
+      g_value_set_int (value, simplevideomarkdetect->pattern_height);
+      break;
+    case PROP_PATTERN_COUNT:
+      g_value_set_int (value, simplevideomarkdetect->pattern_count);
+      break;
+    case PROP_PATTERN_DATA_COUNT:
+      g_value_set_int (value, simplevideomarkdetect->pattern_data_count);
+      break;
+    case PROP_PATTERN_CENTER:
+      g_value_set_double (value, simplevideomarkdetect->pattern_center);
+      break;
+    case PROP_PATTERN_SENSITIVITY:
+      g_value_set_double (value, simplevideomarkdetect->pattern_sensitivity);
+      break;
+    case PROP_LEFT_OFFSET:
+      g_value_set_int (value, simplevideomarkdetect->left_offset);
+      break;
+    case PROP_BOTTOM_OFFSET:
+      g_value_set_int (value, simplevideomarkdetect->bottom_offset);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+void
+gst_video_detect_dispose (GObject * object)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (object);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "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)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (object);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "finalize");
+
+  /* clean up object here */
+
+  G_OBJECT_CLASS (gst_video_detect_parent_class)->finalize (object);
+}
+
+static gboolean
+gst_video_detect_start (GstBaseTransform * trans)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (trans);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "start");
+
+  return TRUE;
+}
+
+static gboolean
+gst_video_detect_stop (GstBaseTransform * trans)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (trans);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "stop");
+
+  return TRUE;
+}
+
+static gboolean
+gst_video_detect_set_info (GstVideoFilter * filter, GstCaps * incaps,
+    GstVideoInfo * in_info, GstCaps * outcaps, GstVideoInfo * out_info)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (filter);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "set_info");
+
+  return TRUE;
+}
+
+static void
+gst_video_detect_post_message (GstSimpleVideoMarkDetect * simplevideomarkdetect,
+    GstBuffer * buffer, guint64 data)
+{
+  GstBaseTransform *trans;
+  GstMessage *m;
+  guint64 duration, timestamp, running_time, stream_time;
+
+  trans = GST_BASE_TRANSFORM_CAST (simplevideomarkdetect);
+
+  /* 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 (simplevideomarkdetect),
+      gst_structure_new ("GstSimpleVideoMarkDetect",
+          "have-pattern", G_TYPE_BOOLEAN, simplevideomarkdetect->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 (simplevideomarkdetect), m);
+}
+
+static gdouble
+gst_video_detect_calc_brightness (GstSimpleVideoMarkDetect *
+    simplevideomarkdetect, 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 (GstSimpleVideoMarkDetect * simplevideomarkdetect,
+    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 = simplevideomarkdetect->pattern_width;
+  ph = simplevideomarkdetect->pattern_height;
+  row_stride = GST_VIDEO_FRAME_COMP_STRIDE (frame, 0);
+  pixel_stride = GST_VIDEO_FRAME_COMP_PSTRIDE (frame, 0);
+
+  req_width =
+      (simplevideomarkdetect->pattern_count +
+      simplevideomarkdetect->pattern_data_count) * pw +
+      simplevideomarkdetect->left_offset;
+  req_height = simplevideomarkdetect->bottom_offset + ph;
+  if (req_width > width || req_height > height) {
+    goto no_pattern;
+  }
+
+  /* analyse the bottom left pixels */
+  for (i = 0; i < simplevideomarkdetect->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 - simplevideomarkdetect->bottom_offset) +
+        pixel_stride * simplevideomarkdetect->left_offset;
+    /* move to i-th pattern */
+    d += pixel_stride * pw * i;
+
+    /* calc brightness of width * height box */
+    brightness =
+        gst_video_detect_calc_brightness (simplevideomarkdetect, d, pw, ph,
+        row_stride, pixel_stride);
+
+    GST_DEBUG_OBJECT (simplevideomarkdetect, "brightness %f", brightness);
+
+    if (i & 1) {
+      /* odd pixels must be white, all pixels darker than the center +
+       * sensitivity are considered wrong. */
+      if (brightness <
+          (simplevideomarkdetect->pattern_center +
+              simplevideomarkdetect->pattern_sensitivity))
+        goto no_pattern;
+    } else {
+      /* even pixels must be black, pixels lighter than the center - sensitivity
+       * are considered wrong. */
+      if (brightness >
+          (simplevideomarkdetect->pattern_center -
+              simplevideomarkdetect->pattern_sensitivity))
+        goto no_pattern;
+    }
+  }
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "found pattern");
+
+  pattern_data = 0;
+
+  /* get the data of the pattern */
+  for (i = 0; i < simplevideomarkdetect->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 - simplevideomarkdetect->bottom_offset) +
+        pixel_stride * simplevideomarkdetect->left_offset;
+    /* move after the fixed pattern */
+    d += pixel_stride * (simplevideomarkdetect->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 (simplevideomarkdetect, 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 > simplevideomarkdetect->pattern_center)
+      pattern_data |= 1;
+  }
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "have data %" G_GUINT64_FORMAT,
+      pattern_data);
+
+  simplevideomarkdetect->in_pattern = TRUE;
+  gst_video_detect_post_message (simplevideomarkdetect, frame->buffer,
+      pattern_data);
+
+  return;
+
+no_pattern:
+  {
+    GST_DEBUG_OBJECT (simplevideomarkdetect, "no pattern found");
+    if (simplevideomarkdetect->in_pattern) {
+      simplevideomarkdetect->in_pattern = FALSE;
+      gst_video_detect_post_message (simplevideomarkdetect, frame->buffer, 0);
+    }
+    return;
+  }
+}
+
+static GstFlowReturn
+gst_video_detect_transform_frame_ip (GstVideoFilter * filter,
+    GstVideoFrame * frame)
+{
+  GstSimpleVideoMarkDetect *simplevideomarkdetect =
+      GST_SIMPLE_VIDEO_MARK_DETECT (filter);
+
+  GST_DEBUG_OBJECT (simplevideomarkdetect, "transform_frame_ip");
+
+  gst_video_detect_yuv (simplevideomarkdetect, frame);
+
+  return GST_FLOW_OK;
+}