[Jetson NANO] bbox-bg-color property problem in deepstream config file

Accelerated Computing Intelligent Video Analytics DeepStream SDK
#1

Hi,

regarding deepstream development guide (link bellow)

https://docs.nvidia.com/metropolis/deepstream/4.0/dev-guide/index.html#page/DeepStream_Development_Guide%2Fdeepstream_app_config.3.2.html%23wwpID0ETHA

in [Primary GIE and Secondary GIE group] you can find property key named [bbox-bg-color] in column [dGPU, Jetson
Both GIEs] you can find there is mentioned both GIEs so I understand that primary detector and secondary one (clasiffier) can use this property.

In my config file there is only primary-gie declared, because I don’t need secondary one.

But if I set in config file this property I get an error while application is running:

NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
**PERF: 29.05 (29.78)   29.05 (29.78)   29.05 (29.78)   29.05 (29.78)
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2
NvOsd ERR----line = 430 -2

I set this property in [primary-gie]

[primary-gie]
enable=1
gpu-id=0
model-engine-file=../../models/Primary_Detector_Nano/resnet10.caffemodel_b4_fp16.engine
batch-size=4
#Required by the app for OSD, not a plugin property
bbox-border-color0=1;0;0;1
bbox-border-color1=0;1;1;1
bbox-border-color2=0;0;1;1
bbox-border-color3=0;1;0;1

bbox-bg-color0=1;0;0;0.3
bbox-bg-color1=0;1;1;0.5
bbox-bg-color2=0;0;1;0.5
bbox-bg-color3=0;1;0;0.5

interval=2
gie-unique-id=1
nvbuf-memory-type=0
config-file=config_infer_primary_nano_test.txt

I’ve tried to set it after bbox-border-color property too, but no change:

bbox-border-color0=1;0;0;1
bbox-bg-color0=1;0;0;0.3

bbox-border-color1=0;1;1;1
bbox-bg-color1=0;1;1;0.5

bbox-border-color2=0;0;1;1
bbox-bg-color2=0;0;1;0.5

bbox-border-color3=0;1;0;1
bbox-bg-color3=0;1;0;0.5

It’s my mistake or it’s in manual or in SDK?

#2

HI,

It looks like you define four different label color for class ID=0~3.
Does your classifier generate four class output?

Thanks.

#3

Hi,

I’m getting the exact same error by using alpha parameter. What does this error actually mean, where is it thrown? Is the source code available of libnvds_osd.so?

#4

Hi,

Sorry that the nvds_osd is not open-sourced.

The error occurs from our OSD component. You can find more detail in this page:
https://docs.nvidia.com/metropolis/deepstream/plugin-manual/index.html#page/DeepStream_Plugin_Manual%2Fdeepstream_plugin_details.02.06.html

For the issue, have you updated any parameter that related to the line/bbox/text drawing?

Thanks.

#5

Hi,

Please see attachment for the configure file.
We have confirmed that it can works without the error in comment#1.

Thanks.
source4_1080p_dec_infer-resnet_tracker_tiled_display_fp16_nano.txt (3.4 KB)

#6

During my experiments on Jetson Nano I’ve noticed that this particular problem happens when alpha value is not equal to 0.0 and 1.0 and process-mode property of nvdsosd element is set to 2 (VIC mode), which is the default value for that property, and this one doesn’t happen when process-mode is 0 (CPU mode), which seems to be default value in deepstream-app (if omitted in the configuration). Given, for example, detection graphics tend to not be that CPU-hungry, it might be workaround to just set CPU mode for cases like that.

#7

Hi @aclex
Please make a new post with config file so that we can reproduce your observation.

#8

Unfortunately, I apparently cannot attach txt file here, but basically it’s the same as @AastaLLL attached, just with the process-mode=2 definition at line 91. In this configuration it prints just the same error message and doesn’t draw the opaque fields. If this line is changed to process-mode=0 or commented out, the opaque fields are rendered correctly and no error message is printed.

#9

Hi,
VIC engine supports limited modes. Please use the default setting process-mode=0.