Hello,
I am running deepstream-test2 in which I am able to get the track id of the object along with the coordinates of the detected object which are in the current frame but I am not able to get the tracker id and object details which were in the previous 5 to 6 frames. so how should I go to resolve this issue. please help me out.
code base is:
/*
* Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
*
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* 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.
*
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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*/
#include <gst/gst.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gstnvdsmeta.h"
// #include "custom_tracker.h"
#define PGIE_CONFIG_FILE "Face_config.txt"
// #define SGIE1_CONFIG_FILE "dstest2_sgie1_config.txt"
// #define SGIE2_CONFIG_FILE "dstest2_sgie2_config.txt"
// #define SGIE3_CONFIG_FILE "dstest2_sgie3_config.txt"
#define MAX_DISPLAY_LEN 100
#define TRACKER_CONFIG_FILE "dstest2_tracker_config.txt"
#define MAX_TRACKING_ID_LEN 16
#define PGIE_CLASS_ID_FACE 0
/* The muxer output resolution must be set if the input streams will be of
* different resolution. The muxer will scale all the input frames to this
* resolution. */
#define MUXER_OUTPUT_WIDTH 1920
#define MUXER_OUTPUT_HEIGHT 1080
/* Muxer batch formation timeout, for e.g. 40 millisec. Should ideally be set
* based on the fastest source's framerate. */
#define MUXER_BATCH_TIMEOUT_USEC 4000000
gint frame_number = 0;
guint person_in = 0;
guint person_out = 0;
// IDictionary<int, int> dict = new Dictionary<int, int>();
/* This is the buffer probe function that we have registered on the sink pad
* of the OSD element. All the infer elements in the pipeline shall attach
* their metadata to the GstBuffer, here we will iterate & process the metadata
* forex: class ids to strings, counting of class_id objects etc. */
static GstPadProbeReturn
osd_sink_pad_buffer_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer u_data)
{
GstBuffer *buf = (GstBuffer *) info->data;
guint num_rects = 0;
NvDsObjectMeta *obj_meta = NULL;
guint person_count = 0;
guint demo_in = 0;
guint centeroid;
NvDsMetaList * l_frame = NULL;
NvDsMetaList * l_obj = NULL;
NvDsDisplayMeta *display_meta = NULL;
NvDsBatchMeta *batch_meta = gst_buffer_get_nvds_batch_meta (buf);
for (l_frame = batch_meta->frame_meta_list; l_frame != NULL;
l_frame = l_frame->next) {
NvDsFrameMeta *frame_meta = (NvDsFrameMeta *) (l_frame->data);
NvDsMetaList * l_obj1 = frame_meta->obj_meta_list;
int offset = 0;
for (l_obj = frame_meta->obj_meta_list; l_obj != NULL;
l_obj = l_obj->next) {
obj_meta = (NvDsObjectMeta *) (l_obj->data);
int left = obj_meta->rect_params.left;
int top = obj_meta->rect_params.top;
int right = left + obj_meta->rect_params.width;
int bottom = top + obj_meta->rect_params.height;
guint64 id = obj_meta->object_id;
centeroid = (bottom-top)/2+top;
g_print("Centeroid is : %d ",centeroid);
g_print("======================================================================\n");
g_print ("%s %lu %d.00 %d.00 %d.00 %d.00\n",
obj_meta->obj_label, id, left, top, right, bottom);
g_print("%s",obj_meta);
g_print("======================================================================\n");
if (obj_meta->class_id == PGIE_CLASS_ID_FACE) {
person_count++;
num_rects++;
}
}
display_meta = nvds_acquire_display_meta_from_pool(batch_meta);
NvOSD_LineParams *line_params = &display_meta->line_params[0];
NvOSD_TextParams *txt_params = &display_meta->text_params[0];
display_meta->num_labels = 1;
txt_params->display_text = g_malloc0 (MAX_DISPLAY_LEN);
offset = snprintf(txt_params->display_text + offset , MAX_DISPLAY_LEN, "Total Face Count = %d \nTotal IN = %d \nTotal OUT = %d", person_count,person_in,person_out);
/* Now set the offsets where the string should appear */
txt_params->x_offset = 10;
txt_params->y_offset = 12;
/* Font , font-color and font-size */
txt_params->font_params.font_name = "Serif";
txt_params->font_params.font_size = 20;
txt_params->font_params.font_color.red = 1.0;
txt_params->font_params.font_color.green = 1.0;
txt_params->font_params.font_color.blue = 1.0;
txt_params->font_params.font_color.alpha = 1.0;
/* Text background color */
txt_params->set_bg_clr = 1;
txt_params->text_bg_clr.red = 0.0;
txt_params->text_bg_clr.green = 0.0;
txt_params->text_bg_clr.blue = 1.0;
txt_params->text_bg_clr.alpha = 1.0;
/* lINE BACKGORUNF */
line_params->x1 = 0;
line_params->y1 = MUXER_OUTPUT_HEIGHT/2;
line_params->x2 = MUXER_OUTPUT_WIDTH;
line_params->y2 = MUXER_OUTPUT_HEIGHT/2;
line_params->line_width = 4;
line_params->line_color.red = 0.0;
line_params->line_color.green = 0.0;
line_params->line_color.blue = 1.0;
line_params->line_color.alpha = 0.7;
display_meta->num_lines++;
nvds_add_display_meta_to_frame(frame_meta, display_meta);
}
g_print ("Frame Number = %d Number of objects = %d "
"Face Count = %d\n",
frame_number, num_rects, person_count);
frame_number++;
return GST_PAD_PROBE_OK;
}
static gboolean
bus_call (GstBus * bus, GstMessage * msg, gpointer data)
{
GMainLoop *loop = (GMainLoop *) data;
switch (GST_MESSAGE_TYPE (msg)) {
case GST_MESSAGE_EOS:
g_print ("End of stream\n");
g_main_loop_quit (loop);
break;
case GST_MESSAGE_ERROR:{
gchar *debug;
GError *error;
gst_message_parse_error (msg, &error, &debug);
g_printerr ("ERROR from element %s: %s\n",
GST_OBJECT_NAME (msg->src), error->message);
if (debug)
g_printerr ("Error details: %s\n", debug);
g_free (debug);
g_error_free (error);
g_main_loop_quit (loop);
break;
}
default:
break;
}
return TRUE;
}
/* Tracker config parsing */
#define CHECK_ERROR(error) \
if (error) { \
g_printerr ("Error while parsing config file: %s\n", error->message); \
goto done; \
}
#define CONFIG_GROUP_TRACKER "tracker"
#define CONFIG_GROUP_TRACKER_WIDTH "tracker-width"
#define CONFIG_GROUP_TRACKER_HEIGHT "tracker-height"
#define CONFIG_GROUP_TRACKER_LL_CONFIG_FILE "ll-config-file"
#define CONFIG_GROUP_TRACKER_LL_LIB_FILE "ll-lib-file"
#define CONFIG_GROUP_TRACKER_ENABLE_BATCH_PROCESS "enable-batch-process"
#define CONFIG_GPU_ID "gpu-id"
static gchar *
get_absolute_file_path (gchar *cfg_file_path, gchar *file_path)
{
gchar abs_cfg_path[PATH_MAX + 1];
gchar *abs_file_path;
gchar *delim;
if (file_path && file_path[0] == '/') {
return file_path;
}
if (!realpath (cfg_file_path, abs_cfg_path)) {
g_free (file_path);
return NULL;
}
// Return absolute path of config file if file_path is NULL.
if (!file_path) {
abs_file_path = g_strdup (abs_cfg_path);
return abs_file_path;
}
delim = g_strrstr (abs_cfg_path, "/");
*(delim + 1) = '\0';
abs_file_path = g_strconcat (abs_cfg_path, file_path, NULL);
g_free (file_path);
return abs_file_path;
}
static gboolean
set_tracker_properties (GstElement *nvtracker)
{
gboolean ret = FALSE;
GError *error = NULL;
gchar **keys = NULL;
gchar **key = NULL;
GKeyFile *key_file = g_key_file_new ();
if (!g_key_file_load_from_file (key_file, TRACKER_CONFIG_FILE, G_KEY_FILE_NONE,
&error)) {
g_printerr ("Failed to load config file: %s\n", error->message);
return FALSE;
}
keys = g_key_file_get_keys (key_file, CONFIG_GROUP_TRACKER, NULL, &error);
CHECK_ERROR (error);
for (key = keys; *key; key++) {
if (!g_strcmp0 (*key, CONFIG_GROUP_TRACKER_WIDTH)) {
gint width =
g_key_file_get_integer (key_file, CONFIG_GROUP_TRACKER,
CONFIG_GROUP_TRACKER_WIDTH, &error);
CHECK_ERROR (error);
g_object_set (G_OBJECT (nvtracker), "tracker-width", width, NULL);
} else if (!g_strcmp0 (*key, CONFIG_GROUP_TRACKER_HEIGHT)) {
gint height =
g_key_file_get_integer (key_file, CONFIG_GROUP_TRACKER,
CONFIG_GROUP_TRACKER_HEIGHT, &error);
CHECK_ERROR (error);
g_object_set (G_OBJECT (nvtracker), "tracker-height", height, NULL);
} else if (!g_strcmp0 (*key, CONFIG_GPU_ID)) {
guint gpu_id =
g_key_file_get_integer (key_file, CONFIG_GROUP_TRACKER,
CONFIG_GPU_ID, &error);
CHECK_ERROR (error);
g_object_set (G_OBJECT (nvtracker), "gpu_id", gpu_id, NULL);
} else if (!g_strcmp0 (*key, CONFIG_GROUP_TRACKER_LL_CONFIG_FILE)) {
char* ll_config_file = get_absolute_file_path (TRACKER_CONFIG_FILE,
g_key_file_get_string (key_file,
CONFIG_GROUP_TRACKER,
CONFIG_GROUP_TRACKER_LL_CONFIG_FILE, &error));
CHECK_ERROR (error);
g_object_set (G_OBJECT (nvtracker), "ll-config-file", ll_config_file, NULL);
} else if (!g_strcmp0 (*key, CONFIG_GROUP_TRACKER_LL_LIB_FILE)) {
char* ll_lib_file = get_absolute_file_path (TRACKER_CONFIG_FILE,
g_key_file_get_string (key_file,
CONFIG_GROUP_TRACKER,
CONFIG_GROUP_TRACKER_LL_LIB_FILE, &error));
CHECK_ERROR (error);
g_object_set (G_OBJECT (nvtracker), "ll-lib-file", ll_lib_file, NULL);
} else if (!g_strcmp0 (*key, CONFIG_GROUP_TRACKER_ENABLE_BATCH_PROCESS)) {
gboolean enable_batch_process =
g_key_file_get_integer (key_file, CONFIG_GROUP_TRACKER,
CONFIG_GROUP_TRACKER_ENABLE_BATCH_PROCESS, &error);
CHECK_ERROR (error);
g_object_set (G_OBJECT (nvtracker), "enable_batch_process",
enable_batch_process, NULL);
} else {
g_printerr ("Unknown key '%s' for group [%s]", *key,
CONFIG_GROUP_TRACKER);
}
}
ret = TRUE;
done:
if (error) {
g_error_free (error);
}
if (keys) {
g_strfreev (keys);
}
if (!ret) {
g_printerr ("%s failed", __func__);
}
return ret;
}
int
main (int argc, char *argv[])
{
GMainLoop *loop = NULL;
GstElement *pipeline = NULL, *source = NULL, *h264parser = NULL,
*decoder = NULL, *streammux = NULL, *sink = NULL, *pgie = NULL, *nvvidconv = NULL,
*nvosd = NULL, *nvtracker = NULL;
g_print ("With tracker\n");
#ifdef PLATFORM_TEGRA
GstElement *transform = NULL;
#endif
GstBus *bus = NULL;
guint bus_watch_id = 0;
GstPad *osd_sink_pad = NULL;
/* Check input arguments */
if (argc != 2) {
g_printerr ("Usage: %s <elementary H264 filename>\n", argv[0]);
return -1;
}
/* Standard GStreamer initialization */
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
/* Create gstreamer elements */
/* Create Pipeline element that will be a container of other elements */
pipeline = gst_pipeline_new ("dstest2-pipeline");
/* Source element for reading from the file */
source = gst_element_factory_make ("filesrc", "file-source");
/* Since the data format in the input file is elementary h264 stream,
* we need a h264parser */
h264parser = gst_element_factory_make ("h264parse", "h264-parser");
/* Use nvdec_h264 for hardware accelerated decode on GPU */
decoder = gst_element_factory_make ("nvv4l2decoder", "nvv4l2-decoder");
/* Create nvstreammux instance to form batches from one or more sources. */
streammux = gst_element_factory_make ("nvstreammux", "stream-muxer");
if (!pipeline || !streammux) {
g_printerr ("One element could not be created. Exiting.\n");
return -1;
}
/* Use nvinfer to run inferencing on decoder's output,
* behaviour of inferencing is set through config file */
pgie = gst_element_factory_make ("nvinfer", "primary-nvinference-engine");
/* We need to have a tracker to track the identified objects */
nvtracker = gst_element_factory_make ("nvtracker", "tracker");
/* Use convertor to convert from NV12 to RGBA as required by nvosd */
nvvidconv = gst_element_factory_make ("nvvideoconvert", "nvvideo-converter");
/* Create OSD to draw on the converted RGBA buffer */
nvosd = gst_element_factory_make ("nvdsosd", "nv-onscreendisplay");
/* Finally render the osd output */
#ifdef PLATFORM_TEGRA
transform = gst_element_factory_make ("nvegltransform", "nvegl-transform");
#endif
sink = gst_element_factory_make ("nveglglessink", "nvvideo-renderer");
if (!source || !h264parser || !decoder || !pgie ||
!nvtracker || !nvvidconv || !nvosd || !sink) {
g_printerr ("One element could not be created. Exiting.\n");
return -1;
}
#ifdef PLATFORM_TEGRA
if(!transform) {
g_printerr ("One tegra element could not be created. Exiting.\n");
return -1;
}
#endif
/* Set the input filename to the source element */
g_object_set (G_OBJECT (source), "location", argv[1], NULL);
g_object_set (G_OBJECT (streammux), "width", MUXER_OUTPUT_WIDTH, "height",
MUXER_OUTPUT_HEIGHT, "batch-size", 1,
"batched-push-timeout", MUXER_BATCH_TIMEOUT_USEC, NULL);
/* Set all the necessary properties of the nvinfer element,
* the necessary ones are : */
g_object_set (G_OBJECT (pgie), "config-file-path", PGIE_CONFIG_FILE, NULL);
// g_object_set (G_OBJECT (sgie1), "config-file-path", SGIE1_CONFIG_FILE, NULL);
// g_object_set (G_OBJECT (sgie2), "config-file-path", SGIE2_CONFIG_FILE, NULL);
// g_object_set (G_OBJECT (sgie3), "config-file-path", SGIE3_CONFIG_FILE, NULL);
/* Set necessary properties of the tracker element. */
if (!set_tracker_properties(nvtracker)) {
g_printerr ("Failed to set tracker properties. Exiting.\n");
return -1;
}
/* we add a message handler */
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
bus_watch_id = gst_bus_add_watch (bus, bus_call, loop);
gst_object_unref (bus);
/* Set up the pipeline */
/* we add all elements into the pipeline */
/* decoder | pgie1 | nvtracker | sgie1 | sgie2 | sgie3 | etc.. */
#ifdef PLATFORM_TEGRA
gst_bin_add_many (GST_BIN (pipeline),
source, h264parser, decoder, streammux, pgie, nvtracker,
nvvidconv, nvosd, transform, sink, NULL);
#else
gst_bin_add_many (GST_BIN (pipeline),
source, h264parser, decoder, streammux, pgie, nvtracker,
nvvidconv, nvosd, sink, NULL);
#endif
GstPad *sinkpad, *srcpad;
gchar pad_name_sink[16] = "sink_0";
gchar pad_name_src[16] = "src";
sinkpad = gst_element_get_request_pad (streammux, pad_name_sink);
if (!sinkpad) {
g_printerr ("Streammux request sink pad failed. Exiting.\n");
return -1;
}
srcpad = gst_element_get_static_pad (decoder, pad_name_src);
if (!srcpad) {
g_printerr ("Decoder request src pad failed. Exiting.\n");
return -1;
}
if (gst_pad_link (srcpad, sinkpad) != GST_PAD_LINK_OK) {
g_printerr ("Failed to link decoder to stream muxer. Exiting.\n");
return -1;
}
gst_object_unref (sinkpad);
gst_object_unref (srcpad);
/* Link the elements together */
if (!gst_element_link_many (source, h264parser, decoder, NULL)) {
g_printerr ("Elements could not be linked: 1. Exiting.\n");
return -1;
}
#ifdef PLATFORM_TEGRA
if (!gst_element_link_many (streammux, pgie, nvtracker, nvvidconv, nvosd, transform, sink, NULL)) {
g_printerr ("Elements could not be linked. Exiting.\n");
return -1;
}
#else
if (!gst_element_link_many (streammux, pgie, nvtracker, nvvidconv, nvosd, sink, NULL)) {
g_printerr ("Elements could not be linked. Exiting.\n");
return -1;
}
#endif
/* Lets add probe to get informed of the meta data generated, we add probe to
* the sink pad of the osd element, since by that time, the buffer would have
* had got all the metadata. */
osd_sink_pad = gst_element_get_static_pad (nvosd, "sink");
if (!osd_sink_pad)
g_print ("Unable to get sink pad\n");
else
gst_pad_add_probe (osd_sink_pad, GST_PAD_PROBE_TYPE_BUFFER,
osd_sink_pad_buffer_probe, NULL, NULL);
/* Set the pipeline to "playing" state */
g_print ("Now playing: %s\n", argv[1]);
gst_element_set_state (pipeline, GST_STATE_PLAYING);
/* Iterate */
g_print ("Running...\n");
g_main_loop_run (loop);
/* Out of the main loop, clean up nicely */
g_print ("Returned, stopping playback\n");
gst_element_set_state (pipeline, GST_STATE_NULL);
g_print ("Deleting pipeline\n");
gst_object_unref (GST_OBJECT (pipeline));
g_source_remove (bus_watch_id);
g_main_loop_unref (loop);
return 0;
}