Hi pshin,
I’ve set this parameter to 0 when use DCF tracker, while all streams still share the same tracker? What’s wrong?
Here’s my code:
/*
* Copyright (c) 2018-2020, NVIDIA CORPORATION. All rights reserved.
*
* 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.
*/
#include <gst/gst.h>
#include <glib.h>
#include <stdio.h>
#include <math.h>
#include <string.h>
#include <sys/time.h>
#include <thread>
#include <cuda_runtime_api.h>
#include <vector>
#include <algorithm>
#include <cstring>
#include "gstnvdsmeta.h"
//#include "gstnvstreammeta.h"
#ifndef PLATFORM_TEGRA
#include "gst-nvmessage.h"
#endif
#define MAX_DISPLAY_LEN 64
#define PGIE_CLASS_ID_VEHICLE 1
#define PGIE_CLASS_ID_TRUCK 2
#define PGIE_CLASS_ID_2RM 3
#define PGIE_CLASS_ID_BUS 4
/* By default, OSD process-mode is set to CPU_MODE. To change mode, set as:
* 1: GPU mode (for Tesla only)
* 2: HW mode (For Jetson only)
*/
#define OSD_PROCESS_MODE 1
/* By default, OSD will not display text. To display text, change this to 1 */
#define OSD_DISPLAY_TEXT 1
/* 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 40000
#define TILED_OUTPUT_WIDTH 400
#define TILED_OUTPUT_HEIGHT 500
/* NVIDIA Decoder source pad memory feature. This feature signifies that source
* pads having this capability will push GstBuffers containing cuda buffers. */
#define GST_CAPS_FEATURES_NVMM "memory:NVMM"
#define FPS_PRINT_INTERVAL 300
//static struct timeval start_time = { };
//static guint probe_counter = 0;
/* tracker_sink_pad_buffer_probe will extract metadata received on OSD sink pad
* and update params for drawing rectangle, object information etc. */
static GstPadProbeReturn
tracker_src_pad_buffer_probe (GstPad * pad, GstPadProbeInfo * info,
gpointer u_data)
{
static NvOSD_ColorParams color[1000];
GstBuffer *buf = (GstBuffer *) info->data;
guint num_rects = 0;
NvDsObjectMeta *obj_meta = NULL;
guint vehicle_count = 0;
guint person_count = 0;
guint truck_count = 0;
guint rm_count = 0;
guint bus_count = 0;
NvDsMetaList *l_frame = NULL;
NvDsMetaList *l_obj = NULL;
//NvDsDisplayMeta *display_meta = NULL;
NvDsBatchMeta *batch_meta = gst_buffer_get_nvds_batch_meta (buf);
color[0] = (NvOSD_ColorParams) {0.5, 0.5, 0.5, 0.5};
for (l_frame = batch_meta->frame_meta_list; l_frame != NULL;
l_frame = l_frame->next) {
NvDsFrameMeta *frame_meta = (NvDsFrameMeta *) (l_frame->data);
//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);
if (obj_meta->class_id == PGIE_CLASS_ID_VEHICLE) {
vehicle_count++;
num_rects++;
if (color[obj_meta->object_id].red)
obj_meta->rect_params.border_color = color[obj_meta->object_id];
else {
obj_meta->rect_params.border_color = (NvOSD_ColorParams) {rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX),
rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX)};
color[obj_meta->object_id] = obj_meta->rect_params.border_color;
}
}
if (obj_meta->class_id == PGIE_CLASS_ID_TRUCK) {
truck_count++;
num_rects++;
if (color[obj_meta->object_id].red)
obj_meta->rect_params.border_color = color[obj_meta->object_id];
else {
obj_meta->rect_params.border_color = (NvOSD_ColorParams) {rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX),
rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX)};
color[obj_meta->object_id] = obj_meta->rect_params.border_color;
}
}
if (obj_meta->class_id == PGIE_CLASS_ID_2RM) {
rm_count++;
num_rects++;
if (color[obj_meta->object_id].red)
obj_meta->rect_params.border_color = color[obj_meta->object_id];
else {
obj_meta->rect_params.border_color = (NvOSD_ColorParams) {rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX),
rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX)};
color[obj_meta->object_id] = obj_meta->rect_params.border_color;
}
}
if (obj_meta->class_id == PGIE_CLASS_ID_BUS) {
bus_count++;
num_rects++;
if (color[obj_meta->object_id].red)
obj_meta->rect_params.border_color = color[obj_meta->object_id];
else {
obj_meta->rect_params.border_color = (NvOSD_ColorParams) {rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX),
rand() / ((double) RAND_MAX), rand() / ((double) RAND_MAX)};
color[obj_meta->object_id] = obj_meta->rect_params.border_color;
}
}
g_print ("object ID = %ld\n", obj_meta->object_id);
}
g_print ("Frame Number = %d Number of objects = %d "
"Vehicle Count = %d Person Count = %d\n",
frame_meta->frame_num, num_rects, vehicle_count, person_count);
#if 0
display_meta = nvds_acquire_display_meta_from_pool(batch_meta);
NvOSD_TextParams *txt_params = &display_meta->text_params;
txt_params->display_text = g_malloc0 (MAX_DISPLAY_LEN);
offset = snprintf(txt_params->display_text, MAX_DISPLAY_LEN, "Person = %d ", person_count);
offset = snprintf(txt_params->display_text + offset , MAX_DISPLAY_LEN, "Vehicle = %d ", vehicle_count);
/* 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 = 10;
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 = 0.0;
txt_params->text_bg_clr.alpha = 1.0;
nvds_add_display_meta_to_frame(frame_meta, display_meta);
#endif
}
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_WARNING:
{
gchar *debug;
GError *error;
gst_message_parse_warning (msg, &error, &debug);
g_printerr ("WARNING from element %s: %s\n",
GST_OBJECT_NAME (msg->src), error->message);
g_free (debug);
g_printerr ("Warning: %s\n", error->message);
g_error_free (error);
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;
}
#ifndef PLATFORM_TEGRA
case GST_MESSAGE_ELEMENT:
{
if (gst_nvmessage_is_stream_eos (msg)) {
guint stream_id;
if (gst_nvmessage_parse_stream_eos (msg, &stream_id)) {
g_print ("Got EOS from stream %d\n", stream_id);
}
}
break;
}
#endif
default:
break;
}
return TRUE;
}
static void
cb_newpad (GstElement * decodebin, GstPad * decoder_src_pad, gpointer data)
{
g_print ("In cb_newpad\n");
GstCaps *caps = gst_pad_get_current_caps (decoder_src_pad);
const GstStructure *str = gst_caps_get_structure (caps, 0);
const gchar *name = gst_structure_get_name (str);
GstElement *source_bin = (GstElement *) data;
GstCapsFeatures *features = gst_caps_get_features (caps, 0);
/* Need to check if the pad created by the decodebin is for video and not
* audio. */
if (!strncmp (name, "video", 5)) {
/* Link the decodebin pad only if decodebin has picked nvidia
* decoder plugin nvdec_*. We do this by checking if the pad caps contain
* NVMM memory features. */
if (gst_caps_features_contains (features, GST_CAPS_FEATURES_NVMM)) {
/* Get the source bin ghost pad */
GstPad *bin_ghost_pad = gst_element_get_static_pad (source_bin, "src");
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (bin_ghost_pad),
decoder_src_pad)) {
g_printerr ("Failed to link decoder src pad to source bin ghost pad\n");
}
gst_object_unref (bin_ghost_pad);
} else {
g_printerr ("Error: Decodebin did not pick nvidia decoder plugin.\n");
}
}
}
static void
decodebin_child_added (GstChildProxy * child_proxy, GObject * object,
gchar * name, gpointer user_data)
{
g_print ("Decodebin child added: %s\n", name);
if (g_strrstr (name, "decodebin") == name) {
g_signal_connect (G_OBJECT (object), "child-added",
G_CALLBACK (decodebin_child_added), user_data);
}
}
static GstElement * create_source_bin (guint index, gchar * address)
{
GstElement *bin = NULL, *source = NULL, *decoder = NULL;
gchar bin_name[16] = { };
g_snprintf (bin_name, 15, "source-bin-%02d", index);
/* Create a source GstBin to abstract this bin's content from the rest of the
* pipeline */
bin = gst_bin_new (bin_name);
/* Source element for reading multicast address.
* We will use decodebin and let it figure out the container format of the
* stream and the codec and plug the appropriate demux and decode plugins. */
source = gst_element_factory_make ("filesrc", "file-source");
decoder = gst_element_factory_make ("decodebin", "mp4-decoder");
if (!bin || !source || !decoder) {
g_printerr ("One element in source bin could not be created.\n");
return NULL;
}
g_object_set (G_OBJECT (source), "location", address, NULL);
/* Connect to the "pad-added" signal of the decodebin which generates a
* callback once a new pad for raw data has beed created by the decodebin */
g_signal_connect (G_OBJECT (decoder), "pad-added", G_CALLBACK (cb_newpad), bin);
gst_bin_add_many (GST_BIN (bin), source, decoder, NULL);
gst_element_link_many (source, decoder, NULL);
/* We need to create a ghost pad for the source bin which will act as a proxy
* for the video decoder src pad. The ghost pad will not have a target right
* now. Once the decode bin creates the video decoder and generates the
* cb_newpad callback, we will set the ghost pad target to the video decoder
* src pad. */
if (!gst_element_add_pad (bin, gst_ghost_pad_new_no_target ("src",
GST_PAD_SRC))) {
g_printerr ("Failed to add ghost pad in source bin\n");
return NULL;
}
return bin;
}
int
start (gchar * address, gchar * config)
{
GMainLoop *loop = NULL;
GstElement *pipeline = NULL, *streammux = NULL, *sink = NULL, *pgie = NULL, *nvtracker = NULL,
*queue1, *queue2, *queue3, *queue4, *queue5, *nvvidconv = NULL,
*nvosd = NULL, *tiler = NULL, *nvdsextractor = NULL;
GMainContext *con = g_main_context_new();
GstElement *transform = NULL;
GstBus *bus = NULL;
guint bus_watch_id;
GstPad *tiler_src_pad = NULL;
GstPad *tracker_src_pad = NULL;
guint tiler_rows, tiler_columns;
guint pgie_batch_size;
int current_device = -1;
cudaGetDevice(¤t_device);
struct cudaDeviceProp prop;
cudaGetDeviceProperties(&prop, current_device);
g_main_context_push_thread_default(con);
/* Standard GStreamer initialization */
gst_init (NULL, NULL);
loop = g_main_loop_new (con, FALSE);
/* Create gstreamer elements */
/* Create Pipeline element that will form a connection of other elements */
pipeline = gst_pipeline_new ("dstest3-pipeline");
/* Create nvstreammux instance to form batches from one or more sources. */
streammux = gst_element_factory_make ("nvstreammux", "stream-muxer");
nvdsextractor = gst_element_factory_make ("dsexample", "extractor");
if (!pipeline || !streammux) {
g_printerr ("One element could not be created. Exiting.\n");
return -1;
}
gst_bin_add (GST_BIN (pipeline), streammux);
GstPad *sinkpad, *srcpad;
gchar pad_name[16] = { };
GstElement *source_bin = create_source_bin (0, address);
if (!source_bin) {
g_printerr ("Failed to create source bin. Exiting.\n");
return -1;
}
gst_bin_add (GST_BIN (pipeline), source_bin);
g_snprintf (pad_name, 15, "sink_%u", 0);
sinkpad = gst_element_get_request_pad (streammux, pad_name);
if (!sinkpad) {
g_printerr ("Streammux request sink pad failed. Exiting.\n");
return -1;
}
srcpad = gst_element_get_static_pad (source_bin, "src");
if (!srcpad) {
g_printerr ("Failed to get src pad of source bin. Exiting.\n");
return -1;
}
if (gst_pad_link (srcpad, sinkpad) != GST_PAD_LINK_OK) {
g_printerr ("Failed to link source bin to stream muxer. Exiting.\n");
return -1;
}
gst_object_unref (srcpad);
gst_object_unref (sinkpad);
/* Use nvinfer to infer on batched frame. */
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");
/* Add queue elements between every two elements */
queue1 = gst_element_factory_make ("queue", "queue1");
queue2 = gst_element_factory_make ("queue", "queue2");
queue3 = gst_element_factory_make ("queue", "queue3");
queue4 = gst_element_factory_make ("queue", "queue4");
queue5 = gst_element_factory_make ("queue", "queue5");
/* Use nvtiler to composite the batched frames into a 2D tiled array based
* on the source of the frames. */
tiler = gst_element_factory_make ("nvmultistreamtiler", "nvtiler");
/* 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 */
if(prop.integrated) {
transform = gst_element_factory_make ("nvegltransform", "nvegl-transform");
}
sink = gst_element_factory_make ("nveglglessink", "nvvideo-renderer");
if (!pgie || !tiler || !nvvidconv || !nvosd || !sink) {
g_printerr ("One element could not be created. Exiting.\n");
return -1;
}
if(!transform && prop.integrated) {
g_printerr ("One tegra element could not be created. Exiting.\n");
return -1;
}
g_object_set (G_OBJECT (streammux), "batch-size", 1, NULL);
g_object_set (G_OBJECT (nvdsextractor), "full-frame", 0, NULL);
g_object_set (G_OBJECT (streammux), "width", MUXER_OUTPUT_WIDTH, "height",
MUXER_OUTPUT_HEIGHT,
"batched-push-timeout", MUXER_BATCH_TIMEOUT_USEC, NULL);
/* Configure the nvinfer element using the nvinfer config file. */
g_object_set (G_OBJECT (pgie),
"config-file-path", config, NULL);
/* Override the batch-size set in the config file with the number of sources. */
g_object_get (G_OBJECT (pgie), "batch-size", &pgie_batch_size, NULL);
if (pgie_batch_size != 1) {
g_printerr
("WARNING: Overriding infer-config batch-size (%d) with number of sources (%d)\n",
pgie_batch_size, 1);
g_object_set (G_OBJECT (pgie), "batch-size", 1, NULL);
}
/* Configure the nvtracker element using the nvtracker config file. */
g_object_set (G_OBJECT (nvtracker),
"ll-lib-file", "/opt/nvidia/deepstream/deepstream-5.1/lib/libnvds_nvdcf.so", NULL);
g_object_set (G_OBJECT (nvtracker),
"ll-config-file", "tracker_config.yml", NULL);
g_object_set (G_OBJECT (nvtracker), "enable_batch_process", 0, NULL);
tiler_rows = (guint) sqrt (1);
tiler_columns = (guint) ceil (1.0 * 1 / tiler_rows);
/* we set the tiler properties here */
g_object_set (G_OBJECT (tiler), "rows", tiler_rows, "columns", tiler_columns,
"width", TILED_OUTPUT_WIDTH, "height", TILED_OUTPUT_HEIGHT, NULL);
g_object_set (G_OBJECT (nvosd), "process-mode", OSD_PROCESS_MODE,
"display-text", OSD_DISPLAY_TEXT, NULL);
g_object_set (G_OBJECT (sink), "qos", 0, NULL);
g_object_set (G_OBJECT (sink), "sync", true, NULL);
/* we add a message handler */
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
GSource *bus_source;
bus_source = gst_bus_create_watch (bus);
g_source_set_callback (bus_source, (GSourceFunc) gst_bus_async_signal_func, NULL, NULL);
g_source_attach (bus_source, con);
g_source_unref (bus_source);
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 */
if(prop.integrated) {
gst_bin_add_many (GST_BIN (pipeline), queue1, pgie, nvtracker, queue2, tiler, queue3,
nvvidconv, queue4, nvosd, queue5, nvdsextractor, transform, sink, NULL);
/* we link the elements together
* nvstreammux -> nvinfer -> nvtiler -> nvvidconv -> nvosd -> video-renderer */
if (!gst_element_link_many (streammux, queue1, pgie, nvtracker, queue2, tiler, queue3,
nvvidconv, nvdsextractor, queue4, nvosd, queue5, transform, sink, NULL)) {
g_printerr ("Elements could not be linked. Exiting.\n");
return -1;
}
}
else {
gst_bin_add_many (GST_BIN (pipeline), queue1, pgie, nvtracker, queue2, tiler, queue3,
nvvidconv, queue4, nvosd, queue5,nvdsextractor, sink, NULL);
/* we link the elements together
* nvstreammux -> nvinfer -> nvtiler -> nvvidconv -> nvosd -> video-renderer */
if (!gst_element_link_many (streammux, queue1, pgie, nvtracker, queue2, tiler, queue3,
nvvidconv, nvdsextractor, queue4, nvosd, queue5, sink, NULL)) {
g_printerr ("Elements could not be linked. Exiting.\n");
return -1;
}
}
/* 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. */
// tiler_src_pad = gst_element_get_static_pad (pgie, "src");
// if (!tiler_src_pad)
// g_print ("Unable to get src pad\n");
// else
// gst_pad_add_probe (tiler_src_pad, GST_PAD_PROBE_TYPE_BUFFER,
// tiler_src_pad_buffer_probe, NULL, NULL);
// gst_object_unref (tiler_src_pad);
tracker_src_pad = gst_element_get_static_pad (nvtracker, "src");
if (!tracker_src_pad)
g_print ("Unable to get src pad\n");
else
gst_pad_add_probe (tracker_src_pad, GST_PAD_PROBE_TYPE_BUFFER,
tracker_src_pad_buffer_probe, NULL, NULL);
gst_object_unref (tracker_src_pad);
/* Set the pipeline to "playing" state */
g_print ("Now playing:");
g_print ("\n");
gst_element_set_state (pipeline, GST_STATE_PLAYING);
/* Wait till pipeline encounters an error or EOS */
g_print ("Running...\n");
g_main_loop_run (loop);
g_main_context_pop_thread_default (con);
/* Out of the main loop, clean up nicely */
g_print ("Returned, stopping playback\n");
g_main_context_unref (con);
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;
}
char *convert(const std::string & s)
{
char *pc = new char[s.size()+1];
std::strcpy(pc, s.c_str());
return pc;
}
int
main (int argc, char *argv[])
{
/* Check input arguments */
// if (argc < 2) {
// g_printerr ("Usage: %s <uri1> [uri2] ... [uriN] \n", argv[0]);
// return -1;
// }
std::vector <std::string> address = {
"./video/20210415_175224_0.mmv239_11_36_11_50010.mp4",
"./video/20210415_175224_0.mmv239_11_36_12_50010.mp4",
"./video/20210415_175224_0.mmv239_11_36_13_50010.mp4",
};
std::vector <std::string> configs = {
"config_infer_primary_ssd_1.txt",
"config_infer_primary_ssd_2.txt",
"config_infer_primary_ssd_3.txt",
};
std::vector<gchar*> adds;
std::transform(address.begin(), address.end(), std::back_inserter(adds), convert);
std::vector<gchar*> confs;
std::transform(configs.begin(), configs.end(), std::back_inserter(confs), convert);
std::vector<std::thread> threads;
std::vector<std::thread>::iterator it;
//std::vector<gchar*>::iterator i;
uint i;
for (i = 0; i < adds.size(); i++) {
threads.push_back(std::thread(start, adds.at(i), confs.at(i)));
}
for (it = threads.begin(); it != threads.end(); it++) {
(*it).join();
}
return 0;
}