| /* |
| * GStreamer MotionCells detect areas of motion |
| * Copyright (C) 2011 Robert Jobbagy <jobbagy.robert@gmail.com> |
| * Copyright (C) 2011 Nicola Murino <nicola.murino@gmail.com> |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| * |
| * Alternatively, the contents of this file may be used under the |
| * GNU Lesser General Public License Version 2.1 (the "LGPL"), in |
| * which case the following provisions apply instead of the ones |
| * mentioned above: |
| * |
| * 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 St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| /** |
| * SECTION:element-motioncells |
| * |
| * Performs motion detection on videos. |
| * |
| * <refsect2> |
| * <title>Example launch line</title> |
| * |[ |
| * gst-launch-1.0 videotestsrc pattern=18 ! videorate ! videoscale ! video/x-raw,width=320,height=240,framerate=5/1 ! videoconvert ! motioncells ! videoconvert ! xvimagesink |
| * ]| |
| * </refsect2> |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include "gstmotioncells.h" |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_motion_cells_debug); |
| #define GST_CAT_DEFAULT gst_motion_cells_debug |
| |
| #define GRID_DEF 10 |
| #define GRID_MIN 8 |
| #define GRID_MAX 32 |
| #define SENSITIVITY_DEFAULT 0.5 |
| #define SENSITIVITY_MIN 0 |
| #define SENSITIVITY_MAX 1 |
| #define THRESHOLD_MIN 0 |
| #define THRESHOLD_DEFAULT 0.01 |
| #define THRESHOLD_MAX 1.0 |
| #define GAP_MIN 1 |
| #define GAP_DEF 5 |
| #define GAP_MAX 60 |
| #define POST_NO_MOTION_MIN 0 |
| #define POST_NO_MOTION_DEF 0 |
| #define POST_NO_MOTION_MAX 180 |
| #define MINIMUM_MOTION_FRAMES_MIN 1 |
| #define MINIMUM_MOTION_FRAMES_DEF 1 |
| #define MINIMUM_MOTION_FRAMES_MAX 60 |
| #define THICKNESS_MIN -1 |
| #define THICKNESS_DEF 1 |
| #define THICKNESS_MAX 5 |
| #define DATE_MIN 0 |
| #define DATE_DEF 1 |
| #define DATE_MAX LONG_MAX |
| #define DEF_DATAFILEEXT "vamc" |
| #define MSGLEN 6 |
| #define BUSMSGLEN 20 |
| |
| #define GFREE(POINTER)\ |
| {\ |
| g_free(POINTER);\ |
| POINTER = NULL;\ |
| } |
| |
| /* Filter signals and args */ |
| enum |
| { |
| /* FILL ME */ |
| LAST_SIGNAL |
| }; |
| |
| enum |
| { |
| PROP_0, |
| PROP_GRID_X, |
| PROP_GRID_Y, |
| PROP_SENSITIVITY, |
| PROP_THRESHOLD, |
| PROP_DISPLAY, |
| PROP_DATE, |
| PROP_DATAFILE, |
| PROP_DATAFILE_EXT, |
| PROP_MOTIONMASKCOORD, |
| PROP_MOTIONMASKCELLSPOS, |
| PROP_CELLSCOLOR, |
| PROP_MOTIONCELLSIDX, |
| PROP_GAP, |
| PROP_POSTNOMOTION, |
| PROP_MINIMUNMOTIONFRAMES, |
| PROP_CALCULATEMOTION, |
| PROP_POSTALLMOTION, |
| PROP_USEALPHA, |
| PROP_MOTIONCELLTHICKNESS |
| }; |
| |
| /* the capabilities of the inputs and outputs. |
| */ |
| static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", |
| GST_PAD_SINK, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("RGB"))); |
| |
| static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", |
| GST_PAD_SRC, |
| GST_PAD_ALWAYS, |
| GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("RGB"))); |
| |
| G_DEFINE_TYPE (GstMotioncells, gst_motion_cells, GST_TYPE_OPENCV_VIDEO_FILTER); |
| |
| static void gst_motion_cells_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec); |
| static void gst_motion_cells_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec); |
| |
| static gboolean gst_motion_cells_handle_sink_event (GstPad * pad, |
| GstObject * parent, GstEvent * event); |
| static GstFlowReturn gst_motion_cells_transform_ip (GstOpencvVideoFilter * |
| filter, GstBuffer * buf, IplImage * img); |
| |
| static void gst_motioncells_update_motion_cells (GstMotioncells * filter); |
| static void gst_motioncells_update_motion_masks (GstMotioncells * filter); |
| |
| /* Clean up */ |
| static void |
| gst_motion_cells_finalize (GObject * obj) |
| { |
| GstMotioncells *filter = gst_motion_cells (obj); |
| |
| motion_cells_free (filter->id); |
| |
| //freeing previously allocated dynamic array |
| if (filter->motionmaskcoord_count > 0) { |
| GFREE (filter->motionmaskcoords); |
| } |
| |
| if (filter->motionmaskcells_count > 0) { |
| GFREE (filter->motionmaskcellsidx); |
| } |
| if (filter->motioncells_count > 0) { |
| GFREE (filter->motioncellsidx); |
| } |
| |
| GFREE (filter->motioncellscolor); |
| GFREE (filter->prev_datafile); |
| GFREE (filter->cur_datafile); |
| GFREE (filter->basename_datafile); |
| GFREE (filter->datafile_extension); |
| |
| G_OBJECT_CLASS (gst_motion_cells_parent_class)->finalize (obj); |
| } |
| |
| /* initialize the motioncells's class */ |
| static void |
| gst_motion_cells_class_init (GstMotioncellsClass * klass) |
| { |
| GObjectClass *gobject_class; |
| GstOpencvVideoFilterClass *gstopencvbasefilter_class; |
| |
| GstElementClass *element_class = GST_ELEMENT_CLASS (klass); |
| gobject_class = (GObjectClass *) klass; |
| gstopencvbasefilter_class = (GstOpencvVideoFilterClass *) klass; |
| |
| gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_motion_cells_finalize); |
| gobject_class->set_property = gst_motion_cells_set_property; |
| gobject_class->get_property = gst_motion_cells_get_property; |
| |
| gstopencvbasefilter_class->cv_trans_ip_func = gst_motion_cells_transform_ip; |
| |
| g_object_class_install_property (gobject_class, PROP_GRID_X, |
| g_param_spec_int ("gridx", "Number of Horizontal Grids", |
| "Number of horizontal grid cells.", GRID_MIN, GRID_MAX, |
| GRID_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_GRID_Y, |
| g_param_spec_int ("gridy", "Number of Vertical Grids", |
| "Number of vertical grid cells.", GRID_MIN, GRID_MAX, |
| GRID_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_SENSITIVITY, |
| g_param_spec_double ("sensitivity", "Motion Sensitivity", |
| "Motion detection sensitivity.", SENSITIVITY_MIN, |
| SENSITIVITY_MAX, SENSITIVITY_DEFAULT, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_THRESHOLD, |
| g_param_spec_double ("threshold", "Lower bound of motion cells number", |
| "Threshold value for motion. Filter detects motion when at least " |
| "this fraction of the cells have moved", |
| THRESHOLD_MIN, THRESHOLD_MAX, THRESHOLD_DEFAULT, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_GAP, |
| g_param_spec_int ("gap", "Motion-finished Threshold", |
| "Interval in seconds after which motion is considered finished " |
| "and a motion finished bus message is posted.", |
| GAP_MIN, GAP_MAX, GAP_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_POSTNOMOTION, |
| g_param_spec_int ("postnomotion", "No-motion Threshold", |
| "If non 0, post a no_motion event on the bus if no motion is " |
| "detected for the given number of seconds", |
| POST_NO_MOTION_MIN, POST_NO_MOTION_MAX, POST_NO_MOTION_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_MINIMUNMOTIONFRAMES, |
| g_param_spec_int ("minimummotionframes", "Minimum Motion Frames", |
| "Minimum number of motion frames triggering a motion event", |
| MINIMUM_MOTION_FRAMES_MIN, MINIMUM_MOTION_FRAMES_MAX, |
| MINIMUM_MOTION_FRAMES_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_DISPLAY, |
| g_param_spec_boolean ("display", "Display", |
| "Toggle display of motion cells on current frame", FALSE, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_POSTALLMOTION, |
| g_param_spec_boolean ("postallmotion", "Post All Motion", |
| "Post bus messages for every motion frame or just motion start and " |
| "motion stop", |
| FALSE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_USEALPHA, |
| g_param_spec_boolean ("usealpha", "Use alpha", |
| "Toggle usage of alpha blending on frames with motion cells", TRUE, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| #if 0 |
| /* FIXME: should not be a long property, make it either gint or gint64 |
| * (is this property actually used or useful for anything?) */ |
| g_object_class_install_property (gobject_class, PROP_DATE, |
| g_param_spec_long ("date", "Motion Cell Date", |
| "Current Date in milliseconds", DATE_MIN, DATE_MAX, DATE_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| #endif |
| g_object_class_install_property (gobject_class, PROP_DATAFILE, |
| g_param_spec_string ("datafile", "DataFile", |
| "Location of motioncells data file (empty string means no saving)", |
| NULL, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_DATAFILE_EXT, |
| g_param_spec_string ("datafileextension", "DataFile Extension", |
| "Extension of datafile", DEF_DATAFILEEXT, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_MOTIONMASKCOORD, |
| g_param_spec_string ("motionmaskcoords", "Motion Mask with Coordinates", |
| "Describe a region with its upper left and lower right x, y " |
| "coordinates separated with \":\". Pass multiple regions as a " |
| "comma-separated list", NULL, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_MOTIONMASKCELLSPOS, |
| g_param_spec_string ("motionmaskcellspos", |
| "Motion Mask with Cells Position", |
| "Describe a cell with its line and column idx separated with \":\". " |
| "Pass multiple cells as a comma-separated list", NULL, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_CELLSCOLOR, |
| g_param_spec_string ("cellscolor", "Color of Motion Cells", |
| "Color for motion cells in R,G,B format. Max per channel is 255", |
| "255,255,0", |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_MOTIONCELLSIDX, |
| g_param_spec_string ("motioncellsidx", "Motion Cells Of Interest(MOCI)", |
| "Describe a cell with its line and column idx separated with \":\". " |
| "Pass multiple cells as a comma-separated list", NULL, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_CALCULATEMOTION, |
| g_param_spec_boolean ("calculatemotion", "Calculate Motion", |
| "Toggles motion calculation. If FALSE, this filter does nothing", |
| TRUE, (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| g_object_class_install_property (gobject_class, PROP_MOTIONCELLTHICKNESS, |
| g_param_spec_int ("motioncellthickness", "Motion Cell Thickness", |
| "Motion Cell Border Thickness. Set to -1 to fill motion cell", |
| THICKNESS_MIN, THICKNESS_MAX, THICKNESS_DEF, |
| (GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS))); |
| |
| gst_element_class_set_static_metadata (element_class, |
| "motioncells", |
| "Filter/Effect/Video", |
| "Performs motion detection on videos and images, providing detected motion cells index via bus messages", |
| "Robert Jobbagy <jobbagy dot robert at gmail dot com>, Nicola Murino <nicola dot murino at gmail.com>"); |
| |
| gst_element_class_add_static_pad_template (element_class, &src_factory); |
| gst_element_class_add_static_pad_template (element_class, &sink_factory); |
| } |
| |
| /* initialize the new element |
| * instantiate pads and add them to element |
| * set pad callback functions |
| * initialize instance structure |
| */ |
| static void |
| gst_motion_cells_init (GstMotioncells * filter) |
| { |
| gst_pad_set_event_function (GST_BASE_TRANSFORM_SINK_PAD (filter), |
| GST_DEBUG_FUNCPTR (gst_motion_cells_handle_sink_event)); |
| |
| filter->display = TRUE; |
| filter->calculate_motion = TRUE; |
| |
| filter->prevgridx = 0; |
| filter->prevgridy = 0; |
| filter->gridx = GRID_DEF; |
| filter->gridy = GRID_DEF; |
| filter->gap = GAP_DEF; |
| filter->postnomotion = POST_NO_MOTION_DEF; |
| filter->minimum_motion_frames = MINIMUM_MOTION_FRAMES_DEF; |
| |
| filter->prev_datafile = NULL; |
| filter->cur_datafile = NULL; |
| filter->basename_datafile = NULL; |
| filter->datafile_extension = g_strdup (DEF_DATAFILEEXT); |
| filter->sensitivity = SENSITIVITY_DEFAULT; |
| filter->threshold = THRESHOLD_DEFAULT; |
| |
| filter->motionmaskcoord_count = 0; |
| filter->motionmaskcoords = NULL; |
| filter->motionmaskcells_count = 0; |
| filter->motionmaskcellsidx = NULL; |
| filter->motioncellscolor = g_new0 (cellscolor, 1); |
| filter->motioncellscolor->R_channel_value = 255; |
| filter->motioncellscolor->G_channel_value = 255; |
| filter->motioncellscolor->B_channel_value = 0; |
| filter->motioncellsidx = NULL; |
| filter->motioncells_count = 0; |
| filter->motion_begin_timestamp = 0; |
| filter->last_motion_timestamp = 0; |
| filter->last_nomotion_notified = 0; |
| filter->consecutive_motion = 0; |
| filter->motion_timestamp = 0; |
| filter->prev_buff_timestamp = 0; |
| filter->cur_buff_timestamp = 0; |
| filter->diff_timestamp = -1; |
| g_get_current_time (&filter->tv); |
| filter->starttime = 1000 * filter->tv.tv_sec; |
| filter->previous_motion = FALSE; |
| filter->changed_datafile = FALSE; |
| filter->postallmotion = FALSE; |
| filter->usealpha = TRUE; |
| filter->firstdatafile = FALSE; |
| filter->firstgridx = TRUE; |
| filter->firstgridy = TRUE; |
| filter->changed_gridx = FALSE; |
| filter->changed_gridy = FALSE; |
| filter->firstframe = TRUE; |
| filter->changed_startime = FALSE; |
| filter->sent_init_error_msg = FALSE; |
| filter->sent_save_error_msg = FALSE; |
| filter->thickness = THICKNESS_DEF; |
| |
| filter->datafileidx = 0; |
| filter->id = motion_cells_init (); |
| |
| gst_opencv_video_filter_set_in_place (GST_OPENCV_VIDEO_FILTER_CAST (filter), |
| TRUE); |
| } |
| |
| static void |
| gst_motion_cells_set_property (GObject * object, guint prop_id, |
| const GValue * value, GParamSpec * pspec) |
| { |
| GstMotioncells *filter = gst_motion_cells (object); |
| //variables for overlay regions setup |
| gchar **strs, **colorstr, **motioncellsstr, **motionmaskcellsstr; |
| int i, ux, uy, lx, ly; |
| int r, g, b; |
| int cellscolorscnt = 0; |
| int linidx, colidx, masklinidx, maskcolidx; |
| int tmpux = -1; |
| int tmpuy = -1; |
| int tmplx = -1; |
| int tmply = -1; |
| |
| GST_OBJECT_LOCK (filter); |
| switch (prop_id) { |
| case PROP_GRID_X: |
| filter->gridx = g_value_get_int (value); |
| if (filter->prevgridx != filter->gridx && !filter->firstframe) { |
| filter->changed_gridx = TRUE; |
| } |
| filter->prevgridx = filter->gridx; |
| break; |
| case PROP_GRID_Y: |
| filter->gridy = g_value_get_int (value); |
| if (filter->prevgridy != filter->gridy && !filter->firstframe) { |
| filter->changed_gridy = TRUE; |
| } |
| filter->prevgridy = filter->gridy; |
| break; |
| case PROP_GAP: |
| filter->gap = g_value_get_int (value); |
| break; |
| case PROP_POSTNOMOTION: |
| filter->postnomotion = g_value_get_int (value); |
| break; |
| case PROP_MINIMUNMOTIONFRAMES: |
| filter->minimum_motion_frames = g_value_get_int (value); |
| break; |
| case PROP_SENSITIVITY: |
| filter->sensitivity = g_value_get_double (value); |
| break; |
| case PROP_THRESHOLD: |
| filter->threshold = g_value_get_double (value); |
| break; |
| case PROP_DISPLAY: |
| filter->display = g_value_get_boolean (value); |
| break; |
| case PROP_POSTALLMOTION: |
| filter->postallmotion = g_value_get_boolean (value); |
| break; |
| case PROP_USEALPHA: |
| filter->usealpha = g_value_get_boolean (value); |
| break; |
| case PROP_CALCULATEMOTION: |
| filter->calculate_motion = g_value_get_boolean (value); |
| break; |
| case PROP_DATE: |
| if (!filter->firstframe) { |
| filter->changed_startime = TRUE; |
| } |
| filter->starttime = g_value_get_long (value); |
| break; |
| case PROP_DATAFILE: |
| GFREE (filter->cur_datafile); |
| GFREE (filter->basename_datafile); |
| filter->basename_datafile = g_value_dup_string (value); |
| |
| if (strlen (filter->basename_datafile) == 0) { |
| filter->cur_datafile = NULL; |
| break; |
| } |
| filter->cur_datafile = |
| g_strdup_printf ("%s-0.%s", filter->basename_datafile, |
| filter->datafile_extension); |
| if (g_strcmp0 (filter->prev_datafile, filter->basename_datafile) != 0) { |
| filter->changed_datafile = TRUE; |
| filter->sent_init_error_msg = FALSE; |
| filter->sent_save_error_msg = FALSE; |
| filter->datafileidx = 0; |
| motion_cells_free_resources (filter->id); |
| } else { |
| filter->changed_datafile = FALSE; |
| } |
| |
| GFREE (filter->prev_datafile); |
| filter->prev_datafile = g_strdup (filter->basename_datafile); |
| break; |
| case PROP_DATAFILE_EXT: |
| GFREE (filter->datafile_extension); |
| filter->datafile_extension = g_value_dup_string (value); |
| break; |
| case PROP_MOTIONMASKCOORD: |
| strs = g_strsplit (g_value_get_string (value), ",", 255); |
| GFREE (filter->motionmaskcoords); |
| //setting number of regions |
| for (filter->motionmaskcoord_count = 0; |
| strs[filter->motionmaskcoord_count] != NULL; |
| ++filter->motionmaskcoord_count); |
| if (filter->motionmaskcoord_count > 0) { |
| sscanf (strs[0], "%d:%d:%d:%d", &tmpux, &tmpuy, &tmplx, &tmply); |
| if (tmpux > -1 && tmpuy > -1 && tmplx > -1 && tmply > -1) { |
| filter->motionmaskcoords = |
| g_new0 (motionmaskcoordrect, filter->motionmaskcoord_count); |
| |
| for (i = 0; i < filter->motionmaskcoord_count; ++i) { |
| sscanf (strs[i], "%d:%d:%d:%d", &ux, &uy, &lx, &ly); |
| ux = CLAMP (ux, 0, filter->width - 1); |
| uy = CLAMP (uy, 0, filter->height - 1); |
| lx = CLAMP (lx, 0, filter->width - 1); |
| ly = CLAMP (ly, 0, filter->height - 1); |
| filter->motionmaskcoords[i].upper_left_x = ux; |
| filter->motionmaskcoords[i].upper_left_y = uy; |
| filter->motionmaskcoords[i].lower_right_x = lx; |
| filter->motionmaskcoords[i].lower_right_y = ly; |
| } |
| } else { |
| filter->motionmaskcoord_count = 0; |
| } |
| } |
| g_strfreev (strs); |
| tmpux = -1; |
| tmpuy = -1; |
| tmplx = -1; |
| tmply = -1; |
| break; |
| case PROP_MOTIONMASKCELLSPOS: |
| motionmaskcellsstr = g_strsplit (g_value_get_string (value), ",", 255); |
| GFREE (filter->motionmaskcellsidx); |
| //setting number of regions |
| for (filter->motionmaskcells_count = 0; |
| motionmaskcellsstr[filter->motionmaskcells_count] != NULL; |
| ++filter->motionmaskcells_count); |
| if (filter->motionmaskcells_count > 0) { |
| sscanf (motionmaskcellsstr[0], "%d:%d", &tmpux, &tmpuy); |
| if (tmpux > -1 && tmpuy > -1) { |
| filter->motionmaskcellsidx = |
| g_new0 (motioncellidx, filter->motionmaskcells_count); |
| for (i = 0; i < filter->motionmaskcells_count; ++i) { |
| sscanf (motionmaskcellsstr[i], "%d:%d", &masklinidx, &maskcolidx); |
| filter->motionmaskcellsidx[i].lineidx = masklinidx; |
| filter->motionmaskcellsidx[i].columnidx = maskcolidx; |
| } |
| } else { |
| filter->motionmaskcells_count = 0; |
| } |
| } |
| g_strfreev (motionmaskcellsstr); |
| tmpux = -1; |
| tmpuy = -1; |
| tmplx = -1; |
| tmply = -1; |
| break; |
| case PROP_CELLSCOLOR: |
| colorstr = g_strsplit (g_value_get_string (value), ",", 4); |
| for (cellscolorscnt = 0; colorstr[cellscolorscnt] != NULL; |
| ++cellscolorscnt); |
| if (cellscolorscnt != 3) { |
| GST_WARNING_OBJECT (filter, "Ignoring badly-formatted cellscolor RGB " |
| "string"); |
| } else { |
| sscanf (colorstr[0], "%d", &r); |
| sscanf (colorstr[1], "%d", &g); |
| sscanf (colorstr[2], "%d", &b); |
| //check right RGB color format |
| r = CLAMP (r, 1, 255); |
| g = CLAMP (g, 1, 255); |
| b = CLAMP (b, 1, 255); |
| filter->motioncellscolor->R_channel_value = r; |
| filter->motioncellscolor->G_channel_value = g; |
| filter->motioncellscolor->B_channel_value = b; |
| } |
| g_strfreev (colorstr); |
| break; |
| case PROP_MOTIONCELLSIDX: |
| motioncellsstr = g_strsplit (g_value_get_string (value), ",", 255); |
| |
| //setting number of regions |
| for (filter->motioncells_count = 0; |
| motioncellsstr[filter->motioncells_count] != NULL; |
| ++filter->motioncells_count); |
| if (filter->motioncells_count > 0) { |
| sscanf (motioncellsstr[0], "%d:%d", &tmpux, &tmpuy); |
| if (tmpux > -1 && tmpuy > -1) { |
| GFREE (filter->motioncellsidx); |
| |
| filter->motioncellsidx = |
| g_new0 (motioncellidx, filter->motioncells_count); |
| |
| for (i = 0; i < filter->motioncells_count; ++i) { |
| sscanf (motioncellsstr[i], "%d:%d", &linidx, &colidx); |
| filter->motioncellsidx[i].lineidx = linidx; |
| filter->motioncellsidx[i].columnidx = colidx; |
| } |
| } else { |
| filter->motioncells_count = 0; |
| } |
| } |
| g_strfreev (motioncellsstr); |
| tmpux = -1; |
| tmpuy = -1; |
| tmplx = -1; |
| tmply = -1; |
| break; |
| case PROP_MOTIONCELLTHICKNESS: |
| filter->thickness = g_value_get_int (value); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| GST_OBJECT_UNLOCK (filter); |
| } |
| |
| static void |
| gst_motion_cells_get_property (GObject * object, guint prop_id, |
| GValue * value, GParamSpec * pspec) |
| { |
| GstMotioncells *filter = gst_motion_cells (object); |
| GString *str; |
| int i; |
| |
| GST_OBJECT_LOCK (filter); |
| switch (prop_id) { |
| case PROP_GRID_X: |
| g_value_set_int (value, filter->gridx); |
| break; |
| case PROP_GRID_Y: |
| g_value_set_int (value, filter->gridy); |
| break; |
| case PROP_GAP: |
| g_value_set_int (value, filter->gap); |
| break; |
| case PROP_POSTNOMOTION: |
| g_value_set_int (value, filter->postnomotion); |
| break; |
| case PROP_MINIMUNMOTIONFRAMES: |
| g_value_set_int (value, filter->minimum_motion_frames); |
| break; |
| case PROP_SENSITIVITY: |
| g_value_set_double (value, filter->sensitivity); |
| break; |
| case PROP_THRESHOLD: |
| g_value_set_double (value, filter->threshold); |
| break; |
| case PROP_DISPLAY: |
| g_value_set_boolean (value, filter->display); |
| break; |
| case PROP_POSTALLMOTION: |
| g_value_set_boolean (value, filter->postallmotion); |
| break; |
| case PROP_USEALPHA: |
| g_value_set_boolean (value, filter->usealpha); |
| break; |
| case PROP_CALCULATEMOTION: |
| g_value_set_boolean (value, filter->calculate_motion); |
| break; |
| case PROP_DATE: |
| g_value_set_long (value, filter->starttime); |
| break; |
| case PROP_DATAFILE: |
| g_value_set_string (value, filter->basename_datafile); |
| break; |
| case PROP_DATAFILE_EXT: |
| g_value_set_string (value, filter->datafile_extension); |
| break; |
| case PROP_MOTIONMASKCOORD: |
| str = g_string_new (""); |
| for (i = 0; i < filter->motionmaskcoord_count; ++i) { |
| if (i < filter->motionmaskcoord_count - 1) |
| g_string_append_printf (str, "%d:%d:%d:%d,", |
| filter->motionmaskcoords[i].upper_left_x, |
| filter->motionmaskcoords[i].upper_left_y, |
| filter->motionmaskcoords[i].lower_right_x, |
| filter->motionmaskcoords[i].lower_right_y); |
| else |
| g_string_append_printf (str, "%d:%d:%d:%d", |
| filter->motionmaskcoords[i].upper_left_x, |
| filter->motionmaskcoords[i].upper_left_y, |
| filter->motionmaskcoords[i].lower_right_x, |
| filter->motionmaskcoords[i].lower_right_y); |
| |
| } |
| g_value_set_string (value, str->str); |
| g_string_free (str, TRUE); |
| break; |
| case PROP_MOTIONMASKCELLSPOS: |
| str = g_string_new (""); |
| for (i = 0; i < filter->motionmaskcells_count; ++i) { |
| if (i < filter->motionmaskcells_count - 1) |
| g_string_append_printf (str, "%d:%d,", |
| filter->motionmaskcellsidx[i].lineidx, |
| filter->motionmaskcellsidx[i].columnidx); |
| else |
| g_string_append_printf (str, "%d:%d", |
| filter->motionmaskcellsidx[i].lineidx, |
| filter->motionmaskcellsidx[i].columnidx); |
| } |
| g_value_set_string (value, str->str); |
| g_string_free (str, TRUE); |
| break; |
| case PROP_CELLSCOLOR: |
| str = g_string_new (""); |
| |
| g_string_printf (str, "%d,%d,%d", |
| filter->motioncellscolor->R_channel_value, |
| filter->motioncellscolor->G_channel_value, |
| filter->motioncellscolor->B_channel_value); |
| |
| g_value_set_string (value, str->str); |
| g_string_free (str, TRUE); |
| break; |
| case PROP_MOTIONCELLSIDX: |
| str = g_string_new (""); |
| for (i = 0; i < filter->motioncells_count; ++i) { |
| if (i < filter->motioncells_count - 1) |
| g_string_append_printf (str, "%d:%d,", |
| filter->motioncellsidx[i].lineidx, |
| filter->motioncellsidx[i].columnidx); |
| else |
| g_string_append_printf (str, "%d:%d", |
| filter->motioncellsidx[i].lineidx, |
| filter->motioncellsidx[i].columnidx); |
| } |
| g_value_set_string (value, str->str); |
| g_string_free (str, TRUE); |
| break; |
| case PROP_MOTIONCELLTHICKNESS: |
| g_value_set_int (value, filter->thickness); |
| break; |
| default: |
| G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); |
| break; |
| } |
| GST_OBJECT_UNLOCK (filter); |
| } |
| |
| static void |
| gst_motioncells_update_motion_cells (GstMotioncells * filter) |
| { |
| int i = 0; |
| int cellscnt = 0; |
| int j = 0; |
| int newcellscnt; |
| motioncellidx *motioncellsidx; |
| for (i = 0; i < filter->motioncells_count; i++) { |
| if ((filter->gridx <= filter->motioncellsidx[i].columnidx) || |
| (filter->gridy <= filter->motioncellsidx[i].lineidx)) { |
| cellscnt++; |
| } |
| } |
| newcellscnt = filter->motioncells_count - cellscnt; |
| motioncellsidx = g_new0 (motioncellidx, newcellscnt); |
| for (i = 0; i < filter->motioncells_count; i++) { |
| if ((filter->motioncellsidx[i].lineidx < filter->gridy) && |
| (filter->motioncellsidx[i].columnidx < filter->gridx)) { |
| motioncellsidx[j].lineidx = filter->motioncellsidx[i].lineidx; |
| motioncellsidx[j].columnidx = filter->motioncellsidx[i].columnidx; |
| j++; |
| } |
| } |
| GFREE (filter->motioncellsidx); |
| filter->motioncells_count = newcellscnt; |
| filter->motioncellsidx = g_new0 (motioncellidx, filter->motioncells_count); |
| j = 0; |
| for (i = 0; i < filter->motioncells_count; i++) { |
| filter->motioncellsidx[i].lineidx = motioncellsidx[j].lineidx; |
| filter->motioncellsidx[i].columnidx = motioncellsidx[j].columnidx; |
| j++; |
| } |
| GFREE (motioncellsidx); |
| } |
| |
| static void |
| gst_motioncells_update_motion_masks (GstMotioncells * filter) |
| { |
| |
| int i = 0; |
| int maskcnt = 0; |
| int j = 0; |
| int newmaskcnt; |
| motioncellidx *motionmaskcellsidx; |
| for (i = 0; i < filter->motionmaskcells_count; i++) { |
| if ((filter->gridx <= filter->motionmaskcellsidx[i].columnidx) || |
| (filter->gridy <= filter->motionmaskcellsidx[i].lineidx)) { |
| maskcnt++; |
| } |
| } |
| newmaskcnt = filter->motionmaskcells_count - maskcnt; |
| motionmaskcellsidx = g_new0 (motioncellidx, newmaskcnt); |
| for (i = 0; i < filter->motionmaskcells_count; i++) { |
| if ((filter->motionmaskcellsidx[i].lineidx < filter->gridy) && |
| (filter->motionmaskcellsidx[i].columnidx < filter->gridx)) { |
| motionmaskcellsidx[j].lineidx = filter->motionmaskcellsidx[i].lineidx; |
| motionmaskcellsidx[j].columnidx = filter->motionmaskcellsidx[i].columnidx; |
| j++; |
| } |
| } |
| GFREE (filter->motionmaskcellsidx); |
| filter->motionmaskcells_count = newmaskcnt; |
| filter->motionmaskcellsidx = |
| g_new0 (motioncellidx, filter->motionmaskcells_count); |
| j = 0; |
| for (i = 0; i < filter->motionmaskcells_count; i++) { |
| filter->motionmaskcellsidx[i].lineidx = motionmaskcellsidx[j].lineidx; |
| filter->motionmaskcellsidx[i].columnidx = motionmaskcellsidx[j].columnidx; |
| j++; |
| } |
| GFREE (motionmaskcellsidx); |
| } |
| |
| /* GstElement vmethod implementations */ |
| |
| /* this function handles the link with other elements */ |
| static gboolean |
| gst_motion_cells_handle_sink_event (GstPad * pad, GstObject * parent, |
| GstEvent * event) |
| { |
| GstMotioncells *filter; |
| GstVideoInfo info; |
| gboolean res = TRUE; |
| |
| filter = gst_motion_cells (parent); |
| |
| switch (GST_EVENT_TYPE (event)) { |
| case GST_EVENT_CAPS: |
| { |
| GstCaps *caps; |
| gst_event_parse_caps (event, &caps); |
| gst_video_info_from_caps (&info, caps); |
| |
| filter->width = info.width; |
| filter->height = info.height; |
| |
| filter->framerate = (double) info.fps_n / (double) info.fps_d; |
| break; |
| } |
| default: |
| break; |
| } |
| |
| res = gst_pad_event_default (pad, parent, event); |
| |
| return res; |
| } |
| |
| /* chain function |
| * this function does the actual processing |
| */ |
| static GstFlowReturn |
| gst_motion_cells_transform_ip (GstOpencvVideoFilter * base, GstBuffer * buf, |
| IplImage * img) |
| { |
| GstMotioncells *filter = gst_motion_cells (base); |
| |
| GST_OBJECT_LOCK (filter); |
| if (filter->calculate_motion) { |
| double sensitivity; |
| int framerate, gridx, gridy, motionmaskcells_count, motionmaskcoord_count, |
| motioncells_count, i; |
| int thickness, success, motioncellsidxcnt, numberOfCells, |
| motioncellsnumber, cellsOfInterestNumber; |
| int mincellsOfInterestNumber, motiondetect; |
| uint minimum_motion_frames, postnomotion; |
| char *datafile; |
| bool display, changed_datafile, useAlpha; |
| gint64 starttime; |
| motionmaskcoordrect *motionmaskcoords; |
| motioncellidx *motionmaskcellsidx; |
| cellscolor motioncellscolor; |
| motioncellidx *motioncellsidx; |
| |
| buf = gst_buffer_make_writable (buf); |
| if (filter->firstframe) { |
| setPrevFrame (img, filter->id); |
| filter->firstframe = FALSE; |
| } |
| |
| minimum_motion_frames = filter->minimum_motion_frames; |
| postnomotion = filter->postnomotion; |
| sensitivity = filter->sensitivity; |
| framerate = filter->framerate; |
| gridx = filter->gridx; |
| gridy = filter->gridy; |
| display = filter->display; |
| motionmaskcoord_count = filter->motionmaskcoord_count; |
| motionmaskcoords = |
| g_new0 (motionmaskcoordrect, filter->motionmaskcoord_count); |
| for (i = 0; i < filter->motionmaskcoord_count; i++) { //we need divide 2 because we use gauss pyramid in C++ side |
| motionmaskcoords[i].upper_left_x = |
| filter->motionmaskcoords[i].upper_left_x / 2; |
| motionmaskcoords[i].upper_left_y = |
| filter->motionmaskcoords[i].upper_left_y / 2; |
| motionmaskcoords[i].lower_right_x = |
| filter->motionmaskcoords[i].lower_right_x / 2; |
| motionmaskcoords[i].lower_right_y = |
| filter->motionmaskcoords[i].lower_right_y / 2; |
| } |
| |
| motioncellscolor.R_channel_value = |
| filter->motioncellscolor->R_channel_value; |
| motioncellscolor.G_channel_value = |
| filter->motioncellscolor->G_channel_value; |
| motioncellscolor.B_channel_value = |
| filter->motioncellscolor->B_channel_value; |
| |
| if ((filter->changed_gridx || filter->changed_gridy |
| || filter->changed_startime)) { |
| if ((g_strcmp0 (filter->cur_datafile, NULL) != 0)) { |
| GFREE (filter->cur_datafile); |
| filter->datafileidx++; |
| filter->cur_datafile = |
| g_strdup_printf ("%s-%d.%s", filter->basename_datafile, |
| filter->datafileidx, filter->datafile_extension); |
| filter->changed_datafile = TRUE; |
| motion_cells_free_resources (filter->id); |
| } |
| if (filter->motioncells_count > 0) |
| gst_motioncells_update_motion_cells (filter); |
| if (filter->motionmaskcells_count > 0) |
| gst_motioncells_update_motion_masks (filter); |
| filter->changed_gridx = FALSE; |
| filter->changed_gridy = FALSE; |
| filter->changed_startime = FALSE; |
| } |
| |
| datafile = g_strdup (filter->cur_datafile); |
| filter->cur_buff_timestamp = (GST_BUFFER_TIMESTAMP (buf) / GST_MSECOND); |
| filter->starttime += |
| (filter->cur_buff_timestamp - filter->prev_buff_timestamp); |
| starttime = filter->starttime; |
| if (filter->changed_datafile || filter->diff_timestamp < 0) |
| filter->diff_timestamp = |
| (gint64) (GST_BUFFER_TIMESTAMP (buf) / GST_MSECOND); |
| changed_datafile = filter->changed_datafile; |
| |
| motionmaskcells_count = filter->motionmaskcells_count; |
| motionmaskcellsidx = g_new0 (motioncellidx, filter->motionmaskcells_count); |
| for (i = 0; i < filter->motionmaskcells_count; i++) { |
| motionmaskcellsidx[i].lineidx = filter->motionmaskcellsidx[i].lineidx; |
| motionmaskcellsidx[i].columnidx = filter->motionmaskcellsidx[i].columnidx; |
| } |
| motioncells_count = filter->motioncells_count; |
| motioncellsidx = g_new0 (motioncellidx, filter->motioncells_count); |
| for (i = 0; i < filter->motioncells_count; i++) { |
| motioncellsidx[i].lineidx = filter->motioncellsidx[i].lineidx; |
| motioncellsidx[i].columnidx = filter->motioncellsidx[i].columnidx; |
| } |
| |
| useAlpha = filter->usealpha; |
| thickness = filter->thickness; |
| success = |
| perform_detection_motion_cells (img, sensitivity, |
| framerate, gridx, gridy, |
| (gint64) (GST_BUFFER_TIMESTAMP (buf) / GST_MSECOND) - |
| filter->diff_timestamp, display, useAlpha, motionmaskcoord_count, |
| motionmaskcoords, motionmaskcells_count, motionmaskcellsidx, |
| motioncellscolor, motioncells_count, motioncellsidx, starttime, |
| datafile, changed_datafile, thickness, filter->id); |
| |
| if ((success == 1) && (filter->sent_init_error_msg == FALSE)) { |
| char *initfailedreason; |
| int initerrorcode; |
| GstStructure *s; |
| GstMessage *m; |
| |
| initfailedreason = getInitDataFileFailed (filter->id); |
| initerrorcode = getInitErrorCode (filter->id); |
| s = gst_structure_new ("motion", "init_error_code", G_TYPE_INT, |
| initerrorcode, "details", G_TYPE_STRING, initfailedreason, NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| filter->sent_init_error_msg = TRUE; |
| } |
| if ((success == -1) && (filter->sent_save_error_msg == FALSE)) { |
| char *savefailedreason; |
| int saveerrorcode; |
| GstStructure *s; |
| GstMessage *m; |
| |
| savefailedreason = getSaveDataFileFailed (filter->id); |
| saveerrorcode = getSaveErrorCode (filter->id); |
| s = gst_structure_new ("motion", "save_error_code", G_TYPE_INT, |
| saveerrorcode, "details", G_TYPE_STRING, savefailedreason, NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| filter->sent_save_error_msg = TRUE; |
| } |
| if (success == -2) { |
| GST_LOG_OBJECT (filter, "frame dropped"); |
| filter->prev_buff_timestamp = filter->cur_buff_timestamp; |
| //free |
| GFREE (datafile); |
| GFREE (motionmaskcoords); |
| GFREE (motionmaskcellsidx); |
| GFREE (motioncellsidx); |
| GST_OBJECT_UNLOCK (filter); |
| return GST_FLOW_OK; |
| } |
| |
| filter->changed_datafile = getChangedDataFile (filter->id); |
| motioncellsidxcnt = getMotionCellsIdxCnt (filter->id); |
| numberOfCells = filter->gridx * filter->gridy; |
| motioncellsnumber = motioncellsidxcnt / MSGLEN; |
| cellsOfInterestNumber = (filter->motioncells_count > 0) ? //how many cells interest for us |
| (filter->motioncells_count) : (numberOfCells); |
| mincellsOfInterestNumber = |
| floor ((double) cellsOfInterestNumber * filter->threshold); |
| GST_OBJECT_UNLOCK (filter); |
| motiondetect = (motioncellsnumber >= mincellsOfInterestNumber) ? 1 : 0; |
| if ((motioncellsidxcnt > 0) && (motiondetect == 1)) { |
| char *detectedmotioncells; |
| |
| filter->last_motion_timestamp = GST_BUFFER_TIMESTAMP (buf); |
| detectedmotioncells = getMotionCellsIdx (filter->id); |
| if (detectedmotioncells) { |
| filter->consecutive_motion++; |
| if ((filter->previous_motion == FALSE) |
| && (filter->consecutive_motion >= minimum_motion_frames)) { |
| GstStructure *s; |
| GstMessage *m; |
| |
| GST_DEBUG_OBJECT (filter, "motion started, post msg on the bus"); |
| filter->previous_motion = TRUE; |
| filter->motion_begin_timestamp = GST_BUFFER_TIMESTAMP (buf); |
| s = gst_structure_new ("motion", "motion_cells_indices", |
| G_TYPE_STRING, detectedmotioncells, "motion_begin", |
| G_TYPE_UINT64, filter->motion_begin_timestamp, NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| } else if (filter->postallmotion) { |
| GstStructure *s; |
| GstMessage *m; |
| |
| GST_DEBUG_OBJECT (filter, "motion, post msg on the bus"); |
| filter->motion_timestamp = GST_BUFFER_TIMESTAMP (buf); |
| s = gst_structure_new ("motion", "motion_cells_indices", |
| G_TYPE_STRING, detectedmotioncells, "motion", G_TYPE_UINT64, |
| filter->motion_timestamp, NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| } |
| } else { |
| GstStructure *s; |
| GstMessage *m; |
| |
| s = gst_structure_new ("motion", "motion_cells_indices", |
| G_TYPE_STRING, "error", NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| } |
| } else { |
| filter->consecutive_motion = 0; |
| if ((((GST_BUFFER_TIMESTAMP (buf) - |
| filter->last_motion_timestamp) / 1000000000l) >= |
| filter->gap) |
| && (filter->last_motion_timestamp > 0)) { |
| if (filter->previous_motion) { |
| GstStructure *s; |
| GstMessage *m; |
| |
| GST_DEBUG_OBJECT (filter, "motion finished, post msg on the bus"); |
| filter->previous_motion = FALSE; |
| s = gst_structure_new ("motion", "motion_finished", G_TYPE_UINT64, |
| filter->last_motion_timestamp, NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| } |
| } |
| } |
| if (postnomotion > 0) { |
| guint64 last_buf_timestamp = GST_BUFFER_TIMESTAMP (buf) / 1000000000l; |
| if ((last_buf_timestamp - |
| (filter->last_motion_timestamp / 1000000000l)) >= |
| filter->postnomotion) { |
| GST_DEBUG_OBJECT (filter, "post no motion msg on the bus"); |
| if ((last_buf_timestamp - |
| (filter->last_nomotion_notified / 1000000000l)) >= |
| filter->postnomotion) { |
| GstStructure *s; |
| GstMessage *m; |
| |
| filter->last_nomotion_notified = GST_BUFFER_TIMESTAMP (buf); |
| s = gst_structure_new ("motion", "no_motion", G_TYPE_UINT64, |
| filter->last_motion_timestamp, NULL); |
| m = gst_message_new_element (GST_OBJECT (filter), s); |
| gst_element_post_message (GST_ELEMENT (filter), m); |
| } |
| } |
| } |
| filter->prev_buff_timestamp = filter->cur_buff_timestamp; |
| |
| //free |
| GFREE (datafile); |
| GFREE (motionmaskcoords); |
| GFREE (motionmaskcellsidx); |
| GFREE (motioncellsidx); |
| } else { |
| GST_WARNING_OBJECT (filter, "Motion detection disabled"); |
| GST_OBJECT_UNLOCK (filter); |
| } |
| return GST_FLOW_OK; |
| } |
| |
| /* entry point to initialize the plug-in |
| * initialize the plug-in itself |
| * register the element factories and other features |
| */ |
| gboolean |
| gst_motion_cells_plugin_init (GstPlugin * plugin) |
| { |
| /* debug category for fltering log messages */ |
| GST_DEBUG_CATEGORY_INIT (gst_motion_cells_debug, |
| "motioncells", |
| 0, |
| "Performs motion detection on videos, providing detected positions via bus messages"); |
| |
| return gst_element_register (plugin, "motioncells", GST_RANK_NONE, |
| GST_TYPE_MOTIONCELLS); |
| } |
