mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-15 12:56:33 +00:00
8afc305fe2
- Propagate GstTensor.type becoming to GstTensor.data_type to tensor producer (onnx) and consumer (TensorDecoder) Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6061>
539 lines
17 KiB
C
539 lines
17 KiB
C
/*
|
|
* GStreamer gstreamer-ssdobjectdetector
|
|
* Copyright (C) 2021 Collabora Ltd.
|
|
*
|
|
* gstssdobjectdetector.cpp
|
|
*
|
|
* 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-ssdobjectdetector
|
|
* @short_description: Detect objects in video buffers using SSD neural network
|
|
*
|
|
* This element can parse per-buffer inference tensor meta data generated by an upstream
|
|
* inference element
|
|
*
|
|
*
|
|
* ## Example launch command:
|
|
*
|
|
* Test image file, model file (SSD) and label file can be found here :
|
|
* https://gitlab.collabora.com/gstreamer/onnx-models
|
|
*
|
|
* GST_DEBUG=ssdobjectdetector:5 \
|
|
* gst-launch-1.0 multifilesrc location=onnx-models/images/bus.jpg ! \
|
|
* jpegdec ! videoconvert ! onnxinference execution-provider=cpu model-file=onnx-models/models/ssd_mobilenet_v1_coco.onnx ! \
|
|
* ssdobjectdetector label-file=onnx-models/labels/COCO_classes.txt ! videoconvert ! autovideosink
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstssdobjectdetector.h"
|
|
|
|
#include <gio/gio.h>
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/video/video.h>
|
|
#include <gst/analytics/analytics.h>
|
|
#include "tensor/gsttensormeta.h"
|
|
|
|
/* Object detection tensor id strings */
|
|
#define GST_MODEL_OBJECT_DETECTOR_BOXES "Gst.Model.ObjectDetector.Boxes"
|
|
#define GST_MODEL_OBJECT_DETECTOR_SCORES "Gst.Model.ObjectDetector.Scores"
|
|
#define GST_MODEL_OBJECT_DETECTOR_NUM_DETECTIONS "Gst.Model.ObjectDetector.NumDetections"
|
|
#define GST_MODEL_OBJECT_DETECTOR_CLASSES "Gst.Model.ObjectDetector.Classes"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (ssd_object_detector_debug);
|
|
#define GST_CAT_DEFAULT ssd_object_detector_debug
|
|
GST_ELEMENT_REGISTER_DEFINE (ssd_object_detector, "ssdobjectdetector",
|
|
GST_RANK_PRIMARY, GST_TYPE_SSD_OBJECT_DETECTOR);
|
|
|
|
/* GstSsdObjectDetector properties */
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_LABEL_FILE,
|
|
PROP_SCORE_THRESHOLD,
|
|
};
|
|
|
|
#define GST_SSD_OBJECT_DETECTOR_DEFAULT_SCORE_THRESHOLD 0.3f /* 0 to 1 */
|
|
|
|
static GstStaticPadTemplate gst_ssd_object_detector_src_template =
|
|
GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("video/x-raw")
|
|
);
|
|
|
|
static GstStaticPadTemplate gst_ssd_object_detector_sink_template =
|
|
GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("video/x-raw")
|
|
);
|
|
|
|
static void gst_ssd_object_detector_set_property (GObject * object,
|
|
guint prop_id, const GValue * value, GParamSpec * pspec);
|
|
static void gst_ssd_object_detector_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
|
static void gst_ssd_object_detector_finalize (GObject * object);
|
|
static GstFlowReturn gst_ssd_object_detector_transform_ip (GstBaseTransform *
|
|
trans, GstBuffer * buf);
|
|
static gboolean gst_ssd_object_detector_process (GstBaseTransform * trans,
|
|
GstBuffer * buf);
|
|
static gboolean
|
|
gst_ssd_object_detector_set_caps (GstBaseTransform * trans, GstCaps * incaps,
|
|
GstCaps * outcaps);
|
|
|
|
G_DEFINE_TYPE (GstSsdObjectDetector, gst_ssd_object_detector,
|
|
GST_TYPE_BASE_TRANSFORM);
|
|
|
|
static void
|
|
gst_ssd_object_detector_class_init (GstSsdObjectDetectorClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = (GObjectClass *) klass;
|
|
GstElementClass *element_class = (GstElementClass *) klass;
|
|
GstBaseTransformClass *basetransform_class = (GstBaseTransformClass *) klass;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (ssd_object_detector_debug, "ssdobjectdetector",
|
|
0, "ssdobjectdetector");
|
|
gobject_class->set_property = gst_ssd_object_detector_set_property;
|
|
gobject_class->get_property = gst_ssd_object_detector_get_property;
|
|
gobject_class->finalize = gst_ssd_object_detector_finalize;
|
|
|
|
/**
|
|
* GstSsdObjectDetector:label-file
|
|
*
|
|
* Label file
|
|
*
|
|
* Since: 1.24
|
|
*/
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_LABEL_FILE,
|
|
g_param_spec_string ("label-file",
|
|
"Label file", "Label file", NULL, (GParamFlags)
|
|
(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
/**
|
|
* GstSsdObjectDetector:score-threshold
|
|
*
|
|
* Threshold for deciding when to remove boxes based on score
|
|
*
|
|
* Since: 1.24
|
|
*/
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SCORE_THRESHOLD,
|
|
g_param_spec_float ("score-threshold",
|
|
"Score threshold",
|
|
"Threshold for deciding when to remove boxes based on score",
|
|
0.0, 1.0, GST_SSD_OBJECT_DETECTOR_DEFAULT_SCORE_THRESHOLD,
|
|
(GParamFlags)
|
|
(G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
gst_element_class_set_static_metadata (element_class, "objectdetector",
|
|
"Filter/Effect/Video",
|
|
"Apply tensor output from inference to detect objects in video frames",
|
|
"Aaron Boxer <aaron.boxer@collabora.com>, Marcus Edel <marcus.edel@collabora.com>");
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_ssd_object_detector_sink_template));
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_ssd_object_detector_src_template));
|
|
basetransform_class->transform_ip =
|
|
GST_DEBUG_FUNCPTR (gst_ssd_object_detector_transform_ip);
|
|
basetransform_class->set_caps =
|
|
GST_DEBUG_FUNCPTR (gst_ssd_object_detector_set_caps);
|
|
}
|
|
|
|
static void
|
|
gst_ssd_object_detector_init (GstSsdObjectDetector * self)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gst_ssd_object_detector_finalize (GObject * object)
|
|
{
|
|
GstSsdObjectDetector *self = GST_SSD_OBJECT_DETECTOR (object);
|
|
|
|
g_free (self->label_file);
|
|
g_clear_pointer (&self->labels, g_array_unref);
|
|
|
|
G_OBJECT_CLASS (gst_ssd_object_detector_parent_class)->finalize (object);
|
|
}
|
|
|
|
static GArray *
|
|
read_labels (const char *labels_file)
|
|
{
|
|
GArray *array;
|
|
GFile *file = g_file_new_for_path (labels_file);
|
|
GFileInputStream *file_stream;
|
|
GDataInputStream *data_stream;
|
|
GError *error = NULL;
|
|
gchar *line;
|
|
|
|
file_stream = g_file_read (file, NULL, &error);
|
|
g_object_unref (file);
|
|
if (!file_stream) {
|
|
GST_WARNING ("Could not open file %s: %s\n", labels_file, error->message);
|
|
g_clear_error (&error);
|
|
return NULL;
|
|
}
|
|
|
|
data_stream = g_data_input_stream_new (G_INPUT_STREAM (file_stream));
|
|
g_object_unref (file_stream);
|
|
|
|
array = g_array_new (FALSE, FALSE, sizeof (GQuark));
|
|
|
|
while ((line = g_data_input_stream_read_line (data_stream, NULL, NULL,
|
|
&error))) {
|
|
GQuark label = g_quark_from_string (line);
|
|
g_array_append_val (array, label);
|
|
g_free (line);
|
|
}
|
|
|
|
g_object_unref (data_stream);
|
|
|
|
if (error) {
|
|
GST_WARNING ("Could not open file %s: %s", labels_file, error->message);
|
|
g_array_free (array, TRUE);
|
|
g_clear_error (&error);
|
|
return NULL;
|
|
}
|
|
|
|
if (array->len == 0) {
|
|
g_array_free (array, TRUE);
|
|
return NULL;
|
|
}
|
|
|
|
return array;
|
|
}
|
|
|
|
static void
|
|
gst_ssd_object_detector_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstSsdObjectDetector *self = GST_SSD_OBJECT_DETECTOR (object);
|
|
const gchar *filename;
|
|
|
|
switch (prop_id) {
|
|
case PROP_LABEL_FILE:
|
|
{
|
|
GArray *labels;
|
|
|
|
filename = g_value_get_string (value);
|
|
labels = read_labels (filename);
|
|
|
|
if (labels) {
|
|
g_free (self->label_file);
|
|
self->label_file = g_strdup (filename);
|
|
g_clear_pointer (&self->labels, g_array_unref);
|
|
self->labels = labels;
|
|
} else {
|
|
GST_WARNING_OBJECT (self, "Label file '%s' not found!", filename);
|
|
}
|
|
}
|
|
break;
|
|
case PROP_SCORE_THRESHOLD:
|
|
GST_OBJECT_LOCK (self);
|
|
self->score_threshold = g_value_get_float (value);
|
|
GST_OBJECT_UNLOCK (self);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_ssd_object_detector_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstSsdObjectDetector *self = GST_SSD_OBJECT_DETECTOR (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_LABEL_FILE:
|
|
g_value_set_string (value, self->label_file);
|
|
break;
|
|
case PROP_SCORE_THRESHOLD:
|
|
GST_OBJECT_LOCK (self);
|
|
g_value_set_float (value, self->score_threshold);
|
|
GST_OBJECT_UNLOCK (self);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GstTensorMeta *
|
|
gst_ssd_object_detector_get_tensor_meta (GstSsdObjectDetector * object_detector,
|
|
GstBuffer * buf)
|
|
{
|
|
GstMeta *meta = NULL;
|
|
gpointer iter_state = NULL;
|
|
|
|
if (!gst_buffer_get_meta (buf, GST_TENSOR_META_API_TYPE)) {
|
|
GST_DEBUG_OBJECT (object_detector,
|
|
"missing tensor meta from buffer %" GST_PTR_FORMAT, buf);
|
|
return NULL;
|
|
}
|
|
|
|
// find object detector meta
|
|
|
|
while ((meta = gst_buffer_iterate_meta_filtered (buf, &iter_state,
|
|
GST_TENSOR_META_API_TYPE))) {
|
|
GstTensorMeta *tensor_meta = (GstTensorMeta *) meta;
|
|
/* SSD model must have either 3 or 4 output tensor nodes: 4 if there is a label node,
|
|
* and only 3 if there is no label */
|
|
if (tensor_meta->num_tensors != 3 && tensor_meta->num_tensors != 4)
|
|
continue;
|
|
|
|
gint boxesIndex = gst_tensor_meta_get_index_from_id (tensor_meta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_BOXES));
|
|
gint scoresIndex = gst_tensor_meta_get_index_from_id (tensor_meta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_SCORES));
|
|
gint numDetectionsIndex = gst_tensor_meta_get_index_from_id (tensor_meta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_NUM_DETECTIONS));
|
|
gint clasesIndex = gst_tensor_meta_get_index_from_id (tensor_meta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_CLASSES));
|
|
|
|
if (boxesIndex == GST_TENSOR_MISSING_ID
|
|
|| scoresIndex == GST_TENSOR_MISSING_ID
|
|
|| numDetectionsIndex == GST_TENSOR_MISSING_ID)
|
|
continue;
|
|
|
|
if (tensor_meta->num_tensors == 4 && clasesIndex == GST_TENSOR_MISSING_ID)
|
|
continue;
|
|
|
|
return tensor_meta;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
gst_ssd_object_detector_set_caps (GstBaseTransform * trans, GstCaps * incaps,
|
|
GstCaps * outcaps)
|
|
{
|
|
GstSsdObjectDetector *self = GST_SSD_OBJECT_DETECTOR (trans);
|
|
|
|
if (!gst_video_info_from_caps (&self->video_info, incaps)) {
|
|
GST_ERROR_OBJECT (self, "Failed to parse caps");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_ssd_object_detector_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
|
|
{
|
|
if (!gst_base_transform_is_passthrough (trans)) {
|
|
if (!gst_ssd_object_detector_process (trans, buf)) {
|
|
GST_ELEMENT_ERROR (trans, STREAM, FAILED,
|
|
(NULL), ("ssd object detection failed"));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
#define DEFINE_GET_FUNC(TYPE, MAX) \
|
|
static gboolean \
|
|
get_ ## TYPE ## _at_index (GstTensor *tensor, GstMapInfo *map, \
|
|
guint index, TYPE * out) \
|
|
{ \
|
|
switch (tensor->data_type) { \
|
|
case GST_TENSOR_TYPE_FLOAT32: { \
|
|
float *f = (float *) map->data; \
|
|
if (sizeof(*f) * (index + 1) > map->size) \
|
|
return FALSE; \
|
|
*out = f[index]; \
|
|
break; \
|
|
} \
|
|
case GST_TENSOR_TYPE_UINT32: { \
|
|
guint32 *u = (guint32 *) map->data; \
|
|
if (sizeof(*u) * (index + 1) > map->size) \
|
|
return FALSE; \
|
|
*out = u[index]; \
|
|
break; \
|
|
} \
|
|
default: \
|
|
GST_ERROR ("Only float32 and int32 tensors are understood"); \
|
|
return FALSE; \
|
|
} \
|
|
return TRUE; \
|
|
}
|
|
|
|
DEFINE_GET_FUNC (guint32, UINT32_MAX)
|
|
DEFINE_GET_FUNC (float, FLOAT_MAX)
|
|
#undef DEFINE_GET_FUNC
|
|
static void
|
|
extract_bounding_boxes (GstSsdObjectDetector * self, gsize w, gsize h,
|
|
GstAnalyticsRelationMeta * rmeta, GstTensorMeta * tmeta)
|
|
{
|
|
gint classes_index;
|
|
gint boxes_index;
|
|
gint scores_index;
|
|
gint numdetect_index;
|
|
|
|
GstMapInfo boxes_map = GST_MAP_INFO_INIT;
|
|
GstMapInfo numdetect_map = GST_MAP_INFO_INIT;
|
|
GstMapInfo scores_map = GST_MAP_INFO_INIT;
|
|
GstMapInfo classes_map = GST_MAP_INFO_INIT;
|
|
|
|
guint num_detections = 0;
|
|
|
|
classes_index = gst_tensor_meta_get_index_from_id (tmeta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_CLASSES));
|
|
numdetect_index = gst_tensor_meta_get_index_from_id (tmeta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_NUM_DETECTIONS));
|
|
scores_index = gst_tensor_meta_get_index_from_id (tmeta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_SCORES));
|
|
boxes_index = gst_tensor_meta_get_index_from_id (tmeta,
|
|
g_quark_from_static_string (GST_MODEL_OBJECT_DETECTOR_BOXES));
|
|
|
|
if (numdetect_index == GST_TENSOR_MISSING_ID
|
|
|| scores_index == GST_TENSOR_MISSING_ID
|
|
|| numdetect_index == GST_TENSOR_MISSING_ID) {
|
|
GST_WARNING ("Missing tensor data expected for SSD model");
|
|
return;
|
|
}
|
|
|
|
if (!gst_buffer_map (tmeta->tensor[numdetect_index].data, &numdetect_map,
|
|
GST_MAP_READ)) {
|
|
GST_ERROR_OBJECT (self, "Failed to map tensor memory for index %d",
|
|
numdetect_index);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (!gst_buffer_map (tmeta->tensor[boxes_index].data, &boxes_map,
|
|
GST_MAP_READ)) {
|
|
GST_ERROR_OBJECT (self, "Failed to map tensor memory for index %d",
|
|
boxes_index);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (!gst_buffer_map (tmeta->tensor[scores_index].data, &scores_map,
|
|
GST_MAP_READ)) {
|
|
GST_ERROR_OBJECT (self, "Failed to map tensor memory for index %d",
|
|
scores_index);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (classes_index != GST_TENSOR_MISSING_ID &&
|
|
!gst_buffer_map (tmeta->tensor[classes_index].data, &classes_map,
|
|
GST_MAP_READ)) {
|
|
GST_DEBUG_OBJECT (self, "Failed to map tensor memory for index %d",
|
|
classes_index);
|
|
}
|
|
|
|
|
|
if (!get_guint32_at_index (&tmeta->tensor[numdetect_index], &numdetect_map,
|
|
0, &num_detections)) {
|
|
GST_ERROR_OBJECT (self, "Failed to get the number of detections");
|
|
goto cleanup;
|
|
}
|
|
|
|
|
|
GST_LOG_OBJECT (self, "Model claims %d detections", num_detections);
|
|
|
|
for (int i = 0; i < num_detections; i++) {
|
|
float score;
|
|
float x, y, bwidth, bheight;
|
|
gint x_i, y_i, bwidth_i, bheight_i;
|
|
guint32 bclass;
|
|
GQuark label = 0;
|
|
GstAnalyticsODMtd odmtd;
|
|
|
|
if (!get_float_at_index (&tmeta->tensor[numdetect_index], &scores_map,
|
|
i, &score))
|
|
continue;
|
|
|
|
GST_LOG_OBJECT (self, "Detection %u score is %f", i, score);
|
|
if (score < self->score_threshold)
|
|
continue;
|
|
|
|
if (!get_float_at_index (&tmeta->tensor[boxes_index], &boxes_map,
|
|
i * 4, &y))
|
|
continue;
|
|
if (!get_float_at_index (&tmeta->tensor[boxes_index], &boxes_map,
|
|
i * 4 + 1, &x))
|
|
continue;
|
|
if (!get_float_at_index (&tmeta->tensor[boxes_index], &boxes_map,
|
|
i * 4 + 2, &bheight))
|
|
continue;
|
|
if (!get_float_at_index (&tmeta->tensor[boxes_index], &boxes_map,
|
|
i * 4 + 3, &bwidth))
|
|
continue;
|
|
|
|
if (self->labels && classes_map.memory &&
|
|
get_guint32_at_index (&tmeta->tensor[classes_index], &classes_map,
|
|
i, &bclass)) {
|
|
if (bclass < self->labels->len)
|
|
label = g_array_index (self->labels, GQuark, bclass);
|
|
}
|
|
|
|
x_i = x * w;
|
|
y_i = y * h;
|
|
bheight_i = (bheight * h) - y_i;
|
|
bwidth_i = (bwidth * w) - x_i;
|
|
|
|
if (gst_analytics_relation_meta_add_od_mtd (rmeta, label,
|
|
x_i, y_i, bwidth_i, bheight_i, score, &odmtd))
|
|
GST_DEBUG_OBJECT (self,
|
|
"Object detected with label : %s, score: %f, bound box: %dx%d at (%d,%d)",
|
|
g_quark_to_string (label), score, bwidth_i, bheight_i, x_i, y_i);
|
|
else
|
|
GST_WARNING_OBJECT (self, "Could not add detection to meta");
|
|
}
|
|
|
|
cleanup:
|
|
|
|
if (numdetect_map.memory)
|
|
gst_buffer_unmap (tmeta->tensor[numdetect_index].data, &numdetect_map);
|
|
if (classes_map.memory)
|
|
gst_buffer_unmap (tmeta->tensor[classes_index].data, &classes_map);
|
|
if (scores_map.memory)
|
|
gst_buffer_unmap (tmeta->tensor[scores_index].data, &scores_map);
|
|
if (boxes_map.memory)
|
|
gst_buffer_unmap (tmeta->tensor[boxes_index].data, &boxes_map);
|
|
}
|
|
|
|
|
|
static gboolean
|
|
gst_ssd_object_detector_process (GstBaseTransform * trans, GstBuffer * buf)
|
|
{
|
|
GstSsdObjectDetector *self = GST_SSD_OBJECT_DETECTOR (trans);
|
|
GstTensorMeta *tmeta;
|
|
GstAnalyticsRelationMeta *rmeta;
|
|
|
|
// get all tensor metas
|
|
tmeta = gst_ssd_object_detector_get_tensor_meta (self, buf);
|
|
if (!tmeta) {
|
|
GST_WARNING_OBJECT (trans, "missing tensor meta");
|
|
return TRUE;
|
|
} else {
|
|
rmeta = gst_buffer_add_analytics_relation_meta (buf);
|
|
g_assert (rmeta);
|
|
}
|
|
|
|
extract_bounding_boxes (self, self->video_info.width,
|
|
self->video_info.height, rmeta, tmeta);
|
|
|
|
return TRUE;
|
|
}
|