# Deepstream 2.0 can not use USB camera **URL:** \ **Category:** DeepStream SDK\ **Created:** [August 5, 2018, 1:43pm UTC](https://forums.developer.nvidia.com/t/deepstream-2-0-can-not-use-usb-camera/63840 "2018-08-05T13:43:54Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![michael\_chien](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@michael\_chien](https://forums.developer.nvidia.com/u/michael_chien)\ **Post date:** [August 5, 2018, 1:43pm UTC](https://forums.developer.nvidia.com/t/deepstream-2-0-can-not-use-usb-camera/63840/1 "2018-08-05T13:43:54Z")
I make changes on configuration file as following # Copyright (c) 2018 NVIDIA Corporation. All rights reserved. # # NVIDIA Corporation and its licensors retain all intellectual property # and proprietary rights in and to this software, related documentation # and any modifications thereto. Any use, reproduction, disclosure or # distribution of this software and related documentation without an express # license agreement from NVIDIA Corporation is strictly prohibited. [application] enable-perf-measurement=1 perf-measurement-interval-sec=5 flow-original-resolution=1 #gie-kitti-output-dir=streamscl [tiled-display] enable=1 width=960 height=540 gpu-id=0 [source0] enable=1 #Type - 1=CameraV4L2 2=URI 3=MultiURI type=1 camera-width=640 camera-height=480 camera-fps-n=30 camera-fps-d=1 camera-v4l2-dev-node=0 num-sources=1 gpu-id=0 [sink0] enable=1 #Type - 1=FakeSink 2=EglSink 3=File type=2 sync=1 source-id=0 gpu-id=0 [sink1] enable=0 type=3 #1=mp4 2=mkv container=1 #1=h264 2=h265 3=mpeg4 ## only SW mpeg4 is supported right now. codec=3 sync=0 bitrate=2000000 output-file=out.mp4 source-id=0 [osd] enable=1 gpu-id=0 osd-mode=1 border-width=1 text-size=15 text-color=1;1;1;1; text-bg-color=0.3;0.3;0.3;1 font=Arial show-clock=0 clock-x-offset=800 clock-y-offset=820 clock-text-size=12 clock-color=1;0;0;0 [primary-gie] enable=1 gpu-id=0 net-scale-factor=0.0039215697906911373 model-file=../../models/Primary\_Detector/resnet10.caffemodel proto-file=../../models/Primary\_Detector/resnet10.prototxt model-cache=../../models/Primary\_Detector/resnet10.caffemodel\_b16\_fp32.cache labelfile-path=../../models/Primary\_Detector/labels.txt net-stride=16 batch-size=4 ## 0=FP32, 1=INT8, 2=FP16 mode network-mode=0 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 num-classes=4 class-thresholds=0.2;0.2;0.1;0.2 class-eps=0.2;0.2;0.2;0.2 class-group-thresholds=1;1;1;1 roi-top-offset=0;0;0;0 roi-bottom-offset=0;0;0;0 detected-min-w=0;0;0;0 detected-min-h=0;0;0;0 detected-max-w=960;960;960;960 detected-max-h=540;540;540;540 interval=0 gie-unique-id=1 parse-func=4 output-bbox-name=conv2d\_bbox output-blob-names=conv2d\_cov parser-bbox-norm=35.0;35.0 #config-file=config\_infer\_resnet.txt [tracker] enable=1 tracker-width=640 tracker-height=368 gpu-id=0 [secondary-gie0] enable=1 net-scale-factor=1 model-file=../../models/Secondary\_VehicleTypes/resnet18.caffemodel proto-file=../../models/Secondary\_VehicleTypes/resnet18.prototxt model-cache=../../models/Secondary\_VehicleTypes/resnet18.caffemodel\_b16\_fp32.cache mean-file=../../models/Secondary\_VehicleTypes/mean.ppm labelfile-path=../../models/Secondary\_VehicleTypes/labels.txt gpu-id=0 batch-size=16 num-classes=6 ## 0=FP32, 1=INT8, 2=FP16 mode network-mode=0 detected-min-w=128 detected-min-h=128 detected-max-w=960 detected-max-h=540 model-color-format=1 gie-unique-id=4 operate-on-gie-id=1 operate-on-class-ids=0; is-classifier=1 output-blob-names=predictions/Softmax classifier-async-mode=1 classifier-threshold=0.51 [secondary-gie1] enable=1 net-scale-factor=1 model-file=../../models/Secondary\_CarColor/resnet18.caffemodel proto-file=../../models/Secondary\_CarColor/resnet18.prototxt model-cache=../../models/Secondary\_CarColor/resnet18.caffemodel\_b16\_fp32.cache mean-file=../../models/Secondary\_CarColor/mean.ppm labelfile-path=../../models/Secondary\_CarColor/labels.txt batch-size=16 ## 0=FP32, 1=INT8, 2=FP16 mode network-mode=0 detected-min-w=128 detected-min-h=128 detected-max-w=960 detected-max-h=540 model-color-format=1 num-classes=12 gpu-id=0 gie-unique-id=5 operate-on-gie-id=1 operate-on-class-ids=0; is-classifier=1 output-blob-names=predictions/Softmax classifier-async-mode=1 classifier-threshold=0.51 [secondary-gie2] enable=1 net-scale-factor=1 model-file=../../models/Secondary\_CarMake/resnet18.caffemodel proto-file=../../models/Secondary\_CarMake/resnet18.prototxt model-cache=../../models/Secondary\_CarMake/resnet18.caffemodel\_b16\_fp32.cache mean-file=../../models/Secondary\_CarMake/mean.ppm labelfile-path=../../models/Secondary\_CarMake/labels.txt batch-size=16 ## 0=FP32, 1=INT8, 2=FP16 mode network-mode=0 num-classes=24 detected-min-w=128 detected-min-h=128 detected-max-w=960 detected-max-h=540 model-color-format=1 gpu-id=0 gie-unique-id=6 operate-on-gie-id=1 operate-on-class-ids=0; is-classifier=1 output-blob-names=predictions/Softmax classifier-async-mode=1 classifier-threshold=0.51 [tests] file-loop=1 However, the console show the execution log, and I can’t see anything from camera side $ deepstream-app -c configs/deepstream-app/camera\_720p\_dec\_infer-resnet\_tracker\_sgie\_tiled\_display\_fp32.txt \*\* WARN: \: Num of Tiles less than number of sources, readjusting to 1 rows, 1 columns > > > Using Cached GIE model /home/michael/deepstream2.0/samples/configs/deepstream-app/../../models/Secondary\_CarMake/resnet18.caffemodel\_b16\_fp32.cache crypto flags(0) > > > Using Cached GIE model /home/michael/deepstream2.0/samples/configs/deepstream-app/../../models/Secondary\_CarColor/resnet18.caffemodel\_b16\_fp32.cache crypto flags(0) > > > Using Cached GIE model /home/michael/deepstream2.0/samples/configs/deepstream-app/../../models/Secondary\_VehicleTypes/resnet18.caffemodel\_b16\_fp32.cache crypto flags(0) > > > Using Cached GIE model /home/michael/deepstream2.0/samples/configs/deepstream-app/../../models/Primary\_Detector/resnet10.caffemodel\_b16\_fp32.cache crypto flags(0) Runtime commands: h: Print this help q: Quit ``` p: Pause r: Resume ``` NOTE: To expand a source in the 2D tiled display and view object details, left-click on the source. To go back to the tiled display, right-click anywhere on the window. \*\* INFO: \: Pipeline ready \*\* INFO: \: Pipeline running nvvidconv: line=300 ---- video/x-raw(memory:NVMM), width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive, framerate=(fraction)30/1, format=(string)NV12 nvstreamtiler: batchSize set as 4 \*\*PERF: FPS 0 (Avg) \*\*PERF: -nan (-nan) \*\*PERF: -nan (-nan) \*\*PERF: -nan (-nan) Any idea? ---
**Author:** ![waynezhu](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/waynezhu/32/9748_2.png) [@waynezhu](https://forums.developer.nvidia.com/u/waynezhu)\ **Post date:** [August 6, 2018, 2:30am UTC](https://forums.developer.nvidia.com/t/deepstream-2-0-can-not-use-usb-camera/63840/2 "2018-08-06T02:30:54Z")
Hi Michael, What is your camera output? raw YUV or encoded stream? And how does your camera connect to PC? Thanks wayne zhu ---
**Author:** ![michael\_chien](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@michael\_chien](https://forums.developer.nvidia.com/u/michael_chien)\ **Post date:** [August 6, 2018, 6:38am UTC](https://forums.developer.nvidia.com/t/deepstream-2-0-can-not-use-usb-camera/63840/3 "2018-08-06T06:38:34Z")
YUV 4:2:2. The camera type is USB. Just connect camera to Desktop’s any USB 2.0/3.0 ports. ---
**Author:** ![waynezhu](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/waynezhu/32/9748_2.png) [@waynezhu](https://forums.developer.nvidia.com/u/waynezhu)\ **Post date:** [August 6, 2018, 7:04am UTC](https://forums.developer.nvidia.com/t/deepstream-2-0-can-not-use-usb-camera/63840/4 "2018-08-06T07:04:04Z")
Hi Michael, Can you check V4l2src plugin work well in your side? If YUV422 input, you need to convert it to YUV420p before providing it to nvinfer/streammux. Thanks wayne zhu