Please provide complete information as applicable to your setup.
**• Hardware Platform ** Jetson • DeepStream Version 5.0.1
**• JetPack Version ** 4.4.1 • TensorRT Version 7.1
**• Issue Type ** Question
**• Requirement details ** How to reset the counters of nvAnalytics and Trackers
I am using the nvDCF tracker aswell as nvDsAnalytics plugins in Deepstream Python application
In terms of the tracker how would we be able to “reset” its counter, Like each day it would be nice for the counter to start back at 0.
The same kind of reset would be great for analytics such as line crossings and such.
I have tried to find resources about this but seem to have come up short
This we dont support on current DS release, user might need to maintain its own count in the app as of now. This can be later added as a property to reset the count in the plugin
I Have been experimenting with removing an object from a stream if it is within an ROI using nvdsAnalytics via a pad probe on the src pad of nvdsanalytics element using “pyds.nvds_remove_obj_meta_from_frame(frame_meta, obj)”
So far it works as expected and the object and bounding box dont appear on the OSD, but the tracker still has information about the removed object.
To access the tracker meta I use the pad on the tiler, I assume it has to do with the past frame meta.
How can I remove the tracker meta when I remove the object in my analytics callback
batch_tracker_decoded = {}
user_meta_list = batch_meta.batch_user_meta_list
while user_meta_list is not None:
user_meta = pyds.NvDsUserMeta.cast(user_meta_list.data)
if user_meta.base_meta.meta_type != pyds.NvDsMetaType.NVDS_TRACKER_PAST_FRAME_META:
continue
past_frame_object_batch = pyds_tracker_meta.NvDsPastFrameObjBatch_cast(user_meta.user_meta_data)
for past_frame_object_stream in pyds_tracker_meta.NvDsPastFrameObjBatch_list(past_frame_object_batch):
streamId = past_frame_object_stream.streamID
print(' past_frame_object_stream:', past_frame_object_stream)
print(' streamID:', past_frame_object_stream.streamID)
print(' surfaceStreamID:', past_frame_object_stream.surfaceStreamID)
for past_frame_object_list in pyds_tracker_meta.NvDsPastFrameObjStream_list(past_frame_object_stream):
print(' past_frame_object_list:', past_frame_object_list)
print(' numObj:', past_frame_object_list.numObj)
print(' uniqueId:', past_frame_object_list.uniqueId)
print(' classId:', past_frame_object_list.classId)
print(' objLabel:', past_frame_object_list.objLabel)
for past_frame_object in pyds_tracker_meta.NvDsPastFrameObjList_list(past_frame_object_list):
print(' past_frame_object:', past_frame_object)
print(' frameNum:', past_frame_object.frameNum)
print(' tBbox.left:', past_frame_object.tBbox.left)
print(' tBbox.width:', past_frame_object.tBbox.width)
print(' tBbox.top:', past_frame_object.tBbox.top)
print(' tBbox.right:', past_frame_object.tBbox.height)
print(' confidence:', past_frame_object.confidence)
print(' age:', past_frame_object.age)
try:
user_meta_list = user_meta_list.next
except StopIteration:
break