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1file_pgie_dcf_tracker_2sgie_window.py
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################################################################################
# The MIT License
#
# Copyright (c) 2024, Prominence AI, Inc.
#
# 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.
################################################################################
################################################################################
#
# The simple example demonstrates how to create a set of Pipeline components,
# specifically:
# - File Source
# - Primary GST Inference Engine (PGIE)
# - DCF Tracker
# - 2 Secondary GST Inference Engines (SGIEs)
# - On-Screen Display (OSD)
# - Window Sink
# ...and how to add them to a new Pipeline and play
#
# The example registers handler callback functions with the Pipeline for:
# - key-release events
# - delete-window events
# - end-of-stream EOS events
# - Pipeline change-of-state events
#
################################################################################
#!/usr/bin/env python
import sys
import time
from dsl import *
uri_h265 = "/opt/nvidia/deepstream/deepstream/samples/streams/sample_1080p_h265.mp4"
# Filespecs (Jetson and dGPU) for the Primary GIE
primary_infer_config_file = \
'/opt/nvidia/deepstream/deepstream/samples/configs/deepstream-app/config_infer_primary.txt'
primary_model_engine_file = \
'/opt/nvidia/deepstream/deepstream/samples/models/Primary_Detector/resnet18_trafficcamnet.etlt_b8_gpu0_int8.engine'
secondary_infer_config_file_1 = \
'/opt/nvidia/deepstream/deepstream/samples/configs/deepstream-app/config_infer_secondary_vehicletypes.txt'
secondary_model_engine_file_1 = \
'/opt/nvidia/deepstream/deepstream/samples/models/Secondary_VehicleTypes/resnet18_vehicletypenet.etlt_b8_gpu0_int8.engine'
secondary_infer_config_file_2 = \
'/opt/nvidia/deepstream/deepstream/samples/configs/deepstream-app/config_infer_secondary_vehiclemake.txt'
secondary_model_engine_file_2 = \
'/opt/nvidia/deepstream/deepstream/samples/models/Secondary_VehicleMake/resnet18_vehiclemakenet.etlt_b8_gpu0_int8.engine'
# Filespec for the NvDCF Tracker config file
dcf_tracker_config_file = \
'/opt/nvidia/deepstream/deepstream/samples/configs/deepstream-app/config_tracker_NvDCF_max_perf.yml'
##
# Function to be called on XWindow KeyRelease event
##
def xwindow_key_event_handler(key_string, client_data):
print('key released = ', key_string)
if key_string.upper() == 'P':
dsl_pipeline_pause('pipeline')
elif key_string.upper() == 'R':
dsl_pipeline_play('pipeline')
elif key_string.upper() == 'Q' or key_string == '' or key_string == '':
dsl_pipeline_stop('pipeline')
dsl_main_loop_quit()
##
# Function to be called on XWindow Delete event
##
def xwindow_delete_event_handler(client_data):
print('delete window event')
dsl_pipeline_stop('pipeline')
dsl_main_loop_quit()
# Function to be called on End-of-Stream (EOS) event
def eos_event_listener(client_data):
print('Pipeline EOS event')
dsl_pipeline_stop('pipeline')
dsl_main_loop_quit()
##
# Function to be called on every change of Pipeline state
##
def state_change_listener(old_state, new_state, client_data):
print('previous state = ', old_state, ', new state = ', new_state)
if new_state == DSL_STATE_PLAYING:
dsl_pipeline_dump_to_dot('pipeline', "state-playing")
def main(args):
# Since we're not using args, we can Let DSL initialize GST on first call
while True:
# New File Source using the file path specified above, repeat disabled.
retval = dsl_source_file_new('file-source', uri_h265, False)
if retval != DSL_RETURN_SUCCESS:
break
# New Primary GIE using the filespecs above with interval = 0
retval = dsl_infer_gie_primary_new('primary-gie',
primary_infer_config_file, primary_model_engine_file, 0)
if retval != DSL_RETURN_SUCCESS:
break
# First new Secondary GIE using the filespecs above with interval = 0
retval = dsl_infer_gie_secondary_new('secondary-gie-1',
secondary_infer_config_file_1, secondary_model_engine_file_1,
'primary-gie', 0)
if retval != DSL_RETURN_SUCCESS:
break
# Second new Secondary GIE using the filespecs above with interval = 0
retval = dsl_infer_gie_secondary_new('secondary-gie-2',
secondary_infer_config_file_2, secondary_model_engine_file_2,
'primary-gie', 0)
if retval != DSL_RETURN_SUCCESS:
break
# New NvDCF Tracker, setting operation width and height
# NOTE: width and height paramaters must be multiples of 32 for dcf
retval = dsl_tracker_new('dcf-tracker',
config_file = dcf_tracker_config_file,
width = 640,
height = 384)
if retval != DSL_RETURN_SUCCESS:
break
# New OSD with text, clock and bbox display all enabled.
retval = dsl_osd_new('on-screen-display', text_enabled=True,
clock_enabled=True, bbox_enabled=True, mask_enabled=False)
if retval != DSL_RETURN_SUCCESS:
break
# New Window Sink, 0 x/y offsets with reduced dimensions
retval = dsl_sink_window_egl_new('egl-sink', 0, 0, 1280, 720)
if retval != DSL_RETURN_SUCCESS:
break
# Add the XWindow event handler functions defined above
retval = dsl_sink_window_key_event_handler_add('egl-sink',
xwindow_key_event_handler, None)
if retval != DSL_RETURN_SUCCESS:
break
retval = dsl_sink_window_delete_event_handler_add('egl-sink',
xwindow_delete_event_handler, None)
if retval != DSL_RETURN_SUCCESS:
break
# Add all the components to a new pipeline
retval = dsl_pipeline_new_component_add_many('pipeline',
['file-source', 'primary-gie', 'dcf-tracker',
'secondary-gie-1', 'secondary-gie-2', 'on-screen-display',
'egl-sink', None])
if retval != DSL_RETURN_SUCCESS:
break
# Add the listener callback functions defined above
retval = dsl_pipeline_state_change_listener_add('pipeline',
state_change_listener, None)
if retval != DSL_RETURN_SUCCESS:
break
retval = dsl_pipeline_eos_listener_add('pipeline', eos_event_listener, None)
if retval != DSL_RETURN_SUCCESS:
break
# Play the pipeline
retval = dsl_pipeline_play('pipeline')
if retval != DSL_RETURN_SUCCESS:
break
# Join with main loop until released - blocking call
dsl_main_loop_run()
retval = DSL_RETURN_SUCCESS
break
# Print out the final result
print(dsl_return_value_to_string(retval))
dsl_delete_all()
if __name__ == '__main__':
sys.exit(main(sys.argv))