How To Read Jetson Tx2 Camera
| NVIDIA ® JETSON™TX2 | |||||
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| Introduction | |||||
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| Getting Started | |||||
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| NVIDIA TX2 NVP Model | |||||
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| Jetson TX2 video latency | |||||
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| Operation | |||||
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| V4L2 commuter back up | |||||
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Capture
At that place are two ways to capture: Using v4l2 or using nvcamerasrc.
nvcamerasrc
This plugin was created by NVIDIA and it has access to the ISP that helps to convert from Bayer to YUV suitable for the video encoders. However, information technology seems that its usage is limited to the OmniVision OV5693 sensor until NVIDIA releases its source lawmaking or until it adds support to v4l2 to employ the ISP.
gst-launch-ane.0 nvcamerasrc fpsRange="30.0 thirty.0" ! 'video/ten-raw(memory:NVMM), width=(int)1920, summit=(int)1080, format=(string)I420, framerate=(fraction)thirty/1' ! \ nvvidconv flip-method=2 ! 'video/x-raw(retentivity:NVMM), format=(string)I420' ! fakesink silent=faux -five
When the pipeline is launched a daemon appears on top nvcamera-daemon, one question well-nigh the daemon was posted on the Nvidia Embedded Computing Forum
ARM consumption: 45.vii% of one core (four cores bachelor 400% - this means something like eleven.25% of full)
RAM 1119/7853MB (lfb 1258x4MB) cpu [0%@1267,off,off,0%@1267,0%@1267,0%@1267] RAM 1119/7853MB (lfb 1258x4MB) cpu [28%@345,off,off,7%@345,3%@345,16%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [23%@345,off,off,12%@345,half-dozen%@345,12%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [21%@345,off,off,xi%@345,9%@345,thirteen%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [23%@345,off,off,seven%@345,6%@345,10%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [16%@345,off,off,16%@345,ix%@345,7%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [23%@345,off,off,9%@345,7%@345,vii%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [16%@345,off,off,14%@345,six%@345,xiv%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [13%@345,off,off,15%@345,ten%@345,14%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [18%@345,off,off,17%@345,4%@345,13%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [thirteen%@345,off,off,ten%@345,7%@345,15%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [sixteen%@345,off,off,xiii%@345,viii%@345,11%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [14%@345,off,off,15%@345,12%@345,14%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [xviii%@345,off,off,thirteen%@345,14%@345,fifteen%@345] RAM 1119/7853MB (lfb 1258x4MB) cpu [19%@345,off,off,xi%@345,19%@345,eleven%@345] RAM 1119/7853MB (lfb 1257x4MB) cpu [14%@345,off,off,18%@345,13%@345,13%@345] RAM 1119/7853MB (lfb 1257x4MB) cpu [14%@345,off,off,ten%@345,13%@345,17%@345] RAM 1119/7853MB (lfb 1257x4MB) cpu [10%@345,off,off,12%@345,14%@345,thirteen%@345]
1574 root xx 0 9.917g 116260 37488 S 45.7 1.4 1:24.81 nvcamera-daemon 11085 nvidia 20 0 331488 9492 6004 South 3.3 0.1 0:06.98 gst-launch-1.0
The nvvidconv is required unremarkably to catechumen the retentivity type, notwithstanding, in this case, it is used to flip the paradigm. Removing the flip from the pipeline saves like 5% of the ARM load.
nvcamerasrc exposes several properties to control the ISP
wbmode : White balance affects the color temperature of the photo flags: readable, writable Enum "GstNvCamWBMode" Default: 1, "auto" (0): off - GST_NVCAM_WB_MODE_OFF (1): machine - GST_NVCAM_WB_MODE_AUTO (2): incandescent - GST_NVCAM_WB_MODE_INCANDESCENT (3): fluorescent - GST_NVCAM_WB_MODE_FLUORESCENT (four): warm-fluorescent - GST_NVCAM_WB_MODE_WARM_FLUORESCENT (5): daylight - GST_NVCAM_WB_MODE_DAYLIGHT (6): cloudy-daylight - GST_NVCAM_WB_MODE_CLOUDY_DAYLIGHT (7): twilight - GST_NVCAM_WB_MODE_TWILIGHT (8): shade - GST_NVCAM_WB_MODE_SHADE (9): manual - GST_NVCAM_WB_MODE_MANUAL scene-mode : property to gear up scene mode flags: readable, writable Enum "GstNvCamSceneMode" Default: 0, "face-priority" (0): face-priority - GST_NVCAM_SCENE_MODE_FACE_PRIORITY (1): activity - GST_NVCAM_SCENE_MODE_ACTION (2): portrait - GST_NVCAM_SCENE_MODE_PORTRAIT (iii): landscape - GST_NVCAM_SCENE_MODE_LANDSCAPE (4): night - GST_NVCAM_SCENE_MODE_NIGHT (v): night-portrait - GST_NVCAM_SCENE_MODE_NIGHT_PORTRAIT (6): theatre - GST_NVCAM_SCENE_MODE_THEATRE (7): beach - GST_NVCAM_SCENE_MODE_BEACH (8): snow - GST_NVCAM_SCENE_MODE_SNOW (9): sunset - GST_NVCAM_SCENE_MODE_SUNSET (10): steady-photograph - GST_NVCAM_SCENE_MODE_STEADYSHOT (11): fireworks - GST_NVCAM_SCENE_MODE_FIREWORKS (12): sports - GST_NVCAM_SCENE_MODE_SPORTS (13): party - GST_NVCAM_SCENE_MODE_PARTY (xiv): candle-low-cal - GST_NVCAM_SCENE_MODE_CANDLE_LIGHT (fifteen): barcode - GST_NVCAM_SCENE_MODE_BARCODE color-effect : property to set color effect flags: readable, writable Enum "GstNvCamColorEffectMode" Default: 1, "off" (1): off - GST_NVCAM_COLOR_EFFECT_OFF (2): mono - GST_NVCAM_COLOR_EFFECT_MONO (3): negative - GST_NVCAM_COLOR_EFFECT_NEGATIVE (four): solarize - GST_NVCAM_COLOR_EFFECT_SOLARIZE (five): sepia - GST_NVCAM_COLOR_EFFECT_SEPIA (6): posterize - GST_NVCAM_COLOR_EFFECT_POSTERIZE (7): aqua - GST_NVCAM_COLOR_EFFECT_AQUA auto-exposure : property to set auto exposure fashion flags: readable, writable Enum "GstNvCamAutoExposureMode" Default: two, "on" (1): off - GST_NVCAM_AUTO_EXPOSURE_OFF (2): on - GST_NVCAM_AUTO_EXPOSURE_ON (3): OnAutoFlash - GST_NVCAM_AUTO_EXPOSURE_AUTOFLASH (4): OnAlwaysFlash - GST_NVCAM_AUTO_EXPOSURE_ALWAYSFLASH (5): OnFlashRedEye - GST_NVCAM_AUTO_EXPOSURE_AUTO_RED_EYE flash : belongings to set up flash mode flags: readable, writable Enum "GstNvCamFlashMode" Default: 0, "off" (0): off - GST_NVCAM_FLASH_OFF (1): on - GST_NVCAM_FLASH_ON (ii): torch - GST_NVCAM_FLASH_TORCH (3): automobile - GST_NVCAM_FLASH_AUTO flicker : holding to select flicker detection and avoidance mode flags: readable, writable Enum "GstNvCamFlickerMode" Default: iii, "auto" (0): off - GST_NVCAM_FLICKER_OFF (1): 50Hz - GST_NVCAM_FLICKER_50HZ (2): 60Hz - GST_NVCAM_FLICKER_60HZ (3): automobile - GST_NVCAM_FLICKER_AUTO contrast : property to adjust dissimilarity value flags: readable, writable Float. Range: 0 - 1 Default: 0 saturation : property to adjust saturation value flags: readable, writable Float. Range: 0 - 2 Default: 1 tnr-forcefulness : property to adjust temporal racket reduction strength flags: readable, writable Float. Range: 0 - one Default: 0 tnr-fashion : property to select temporal racket reduction way flags: readable, writable Enum "GstNvCamTNRMode" Default: 0, "NoiseReduction_Off" (0): NoiseReduction_Off - GST_NVCAM_NR_OFF (1): NoiseReduction_Fast - GST_NVCAM_NR_FAST (2): NoiseReduction_HighQuality - GST_NVCAM_NR_HIGHQUALITY border-enhancement : property to arrange edge enhnacement value flags: readable, writable Float. Range: 0 - one Default: -1 trigger : holding to burn down pre capture trigger flags: readable, writable Enum "GstNvCamCaptureTrigger" Default: 0, "" (1): idle - GST_NVCAM_TRIGGER_IDLE (2): kickoff - GST_NVCAM_TRIGGER_START intent : property to select capture intent flags: readable, writable Enum "GstNvCamCaptureIntent" Default: 1, "preview" (1): preview - GST_NVCAM_INTENT_PREVIEW (2): even so - GST_NVCAM_INTENT_STILL (3): video - GST_NVCAM_INTENT_VIDEO (4): video-snapshot - GST_NVCAM_INTENT_VIDEO_SNAPSHOT (5): zsl - GST_NVCAM_INTENT_ZSL sensor-id : Set the id of camera sensor to employ. Default 0.) flags: readable, writable Integer. Range: 0 - 255 Default: 0 enable-exif : Return Exif data with captured frame flags: readable, writable Boolean. Default: false enable-meta : Render Sensor meta data with captured frame flags: readable, writable Boolean. Default: false aeRegion : Belongings to set region of interest for motorcar exposure. Use GArray, with values of ROI coordinates (top,left,bottom,right) and weight in that order, to set the belongings. flags: readable, writable Boxed pointer of type "GArray" wbRegion : Property to set region of interest for white balance. Use GArray, with values of ROI coordinates (top,left,bottom,correct) and weight in that lodge, to set the property. flags: readable, writable Boxed arrow of type "GArray" fpsRange : Holding to set FPS range. Use cord with values of FPS Range (depression, high) in that order, to fix the property. flags: readable, writable String. Default: null exposure-time : Property to adjust exposure time. This property will have upshot merely when Exposure mode is Off. flags: readable, writable Float. Range: 0 - 3.402823e+38 Default: 0.033 wbManualMode : Holding to gear up manual mode of White residue. This property will have effect only when wbMode is manual. flags: readable, writable Enum "GstNvCamWBManualMode" Default: 0, "off" (0): off - GST_NVCAM_WB_MANUAL_OFF (one): reset - GST_NVCAM_WB_MANUAL_RESET (2): restore - GST_NVCAM_WB_MANUAL_RESTORE (iii): external-gains - GST_NVCAM_WB_MANUAL_EXTGAINS wbGains : Property to set external white residual Gains. Use GArray, with values of WB gains (R, GR, GB, B) in that lodge, to set up the holding. This will have effect only when wbMode is manual. flags: readable, writable Boxed pointer of blazon "GArray" aeLock : Belongings to lock auto exposure. flags: readable, writable Boolean. Default: false callback : Property to set user callback. It is required if user wants to alter capture settings per frame. Provide accost of GstNvCamSrcCallbacks type struct every bit value. flags: writable Pointer. Write only dump-bayer : Dump raw bayer information in still capture mode. flags: readable, writable Boolean. Default: false num-sensors : Property to get number of sensors. Returns GArray containing number of sensors {usb,csi} flags: readable Boxed pointer of type "GArray" enable-surround-cameras: Enable Surround Photographic camera (Res: 3456x2304) flags: readable, writable Boolean. Default: false stitch-in-w : Set the sew in W. flags: readable, writable Integer. Range: 0 - 4336 Default: 4336 stitch-in-h : Set the sew in H. flags: readable, writable Integer. Range: 0 - 2440 Default: 2440 surface-layout : Set the surface layout. Default 0. (0=Blocklinear, ane=Pitch) flags: readable, writable Integer. Range: 0 - 1 Default: 0 orientation : Sensor orientation value. This must be accessed after PAUSED state. flags: readable Integer. Range: 0 - 360 Default: -1 v4l2src
Starting on L4T R23.2 there is a /dev/video0 node to capture, however, this node will give you frames in Bayer which are Non suitable to encode because it grabs frames directly from the ov5693 photographic camera without using the ISP.
https://devtalk.nvidia.com/default/topic/923984/ov5693-through-v4l2-interface-not-working-in-23-2/
It works also with the UVC driver.
Capture and Display
nvcamerasrc
gst-launch-i.0 nvcamerasrc fpsRange="30.0 30.0" ! 'video/x-raw(memory:NVMM), width=(int)1920, elevation=(int)1080, format=(string)I420, framerate=(fraction)30/1' ! \ nvvidconv flip-method=2 ! 'video/x-raw(retentivity:NVMM), format=(string)I420' ! nvoverlaysink -due east
ARM consumption: 46.ane% of one core (four cores available 400% - this ways something like 14% of total). However, only the capture is eleven.25% so the brandish consumes 2.75%. For other cameras, y'all can find in our wiki latency numbers for glass to glass measurements
RAM 1184/7853MB (lfb 1246x4MB) cpu [two%@345,off,off,0%@345,0%@345,0%@345] RAM 1186/7853MB (lfb 1246x4MB) cpu [2%@1881,off,off,0%@1881,6%@1881,0%@1881] RAM 1239/7853MB (lfb 1246x4MB) cpu [21%@345,off,off,26%@345,eighteen%@345,16%@345] ->Get-go capture RAM 1239/7853MB (lfb 1246x4MB) cpu [18%@345,off,off,9%@345,9%@345,10%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [21%@345,off,off,12%@345,8%@345,6%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [ix%@345,off,off,12%@345,12%@345,15%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [xi%@345,off,off,fourteen%@345,17%@345,viii%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [thirteen%@345,off,off,xv%@345,17%@345,eight%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [10%@345,off,off,14%@345,14%@345,ten%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [14%@345,off,off,22%@345,9%@345,12%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [12%@345,off,off,14%@345,eight%@345,twenty%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [nine%@345,off,off,ix%@345,17%@345,19%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [7%@345,off,off,17%@345,twenty%@345,12%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [9%@345,off,off,17%@345,xiii%@345,12%@345] RAM 1239/7853MB (lfb 1246x4MB) cpu [12%@345,off,off,20%@345,7%@345,14%@345] RAM 1194/7853MB (lfb 1246x4MB) cpu [ix%@345,off,off,9%@345,15%@345,8%@345] ->Stop capture RAM 1194/7853MB (lfb 1246x4MB) cpu [0%@345,off,off,0%@345,ii%@345,0%@345] RAM 1194/7853MB (lfb 1246x4MB) cpu [0%@345,off,off,0%@345,1%@345,0%@345]
PID USER PR NI VIRT RES SHR S %CPU %MEM Time+ COMMAND 1574 root xx 0 9.979g 208932 44656 S 46.2 2.6 five:18.85 nvcamera-daemon 11507 nvidia twenty 0 423932 11508 8796 S 3.vi 0.1 0:00.66 gst-launch-1.0
nvgstcapture-ane.0
This is an application based on GStreamer and OMX to capture, encode and save the video to the filesystem, and exposes several application options. The source code is non released past NVIDIA however merely they are planning to release information technology in future versions of Linux iv Tegra (L4T). For further reference, you can bank check the Nvidia Embedded Computing Forum.
nvidia@tegra-ubuntu:~$ nvgstcapture-1.0 --assistance Encoder zero, cannot ready bitrate! Encoder Profile = Baseline Usage: nvgstcapture-1.0 [OPTION...] Nvidia GStreamer Camera Model Test Assistance Options: -h, --help Show assistance options --help-all Show all help options --aid-gst Show GStreamer Options Awarding Options: --prev-res Preview width & summit. USB Range: 0 to 12 (5632x4224) and CSI Range: two to 12 (5632x4224) eastward.g., --prev-res=three --cus-prev-res Custom Preview width & pinnacle [ for CSI only] due east.g., --cus-prev-res=1920x1080 --epitome-res Image width & elevation. Range: 0 to 12 (5632x4224) e.k., --image-res=3 --video-res Video width & height. Range: 0 to nine (3896x2192) e.chiliad., --video-res=3 -m, --mode Capture mode value ( one =still 2 =video) -five, --video-enc Video encoder type ( 0 =h264[HW] 1 =vp8[HW] 2 =h265[HW] 3 =vp9[HW]) -b, --enc-bitrate Video encoding Flake-rate(in bytes) e.thou., --enc-bitrate=4000000 --enc-profile Video encoder profile (Just for H.264) ( 0 =Baseline, one =Main, ii =High) -J, --image-enc Paradigm encoder type ( 0 =jpeg_SW[jpegenc] 1 =jpeg_HW[nvjpegenc]) -m, --file-blazon Container file type ( 0 =mp4 1 =3gp two =mkv) --cap-dev-node Video capture device node ( 0 =/dev/video0[default], 1 =/dev/video1, 2 =/dev/video2) e.g., --cap-dev-node=0 --svs [For USB] (=) concatenation for video Preview. [For CSI only] utilise "nvoverlaysink" --file-name Captured file name. nvcamtest is used past default --camsrc Camera Source to apply ( 0 =v4l2, 1 =csi[default], 2 =videotest, 3 =eglstream) --orientation [For CSI only] Camera sensor orientation value -w, --whitebalance [For CSI only] Capture whitebalance value -s, --scene-mode [For CSI merely] Camera Scene-Mode value -c, --color-effect [For CSI only] Camera Color Effect value --car-exposure [For CSI simply] Camera Motorcar-Exposure value --flash [For CSI only] Camera Flash value --flicker [For CSI just] Photographic camera Flicker Detection and Abstention Mode value --contrast [For CSI only] Camera Contrast value --saturation [For CSI merely] Photographic camera Saturation value --edge-enhancement [For CSI just] Camera Border Enhancement value --tnr-strength [For CSI simply] Camera TNR-Strength value --tnr-mode [For CSI only] Camera TNR Style value --sensor-id [For CSI merely] Camera Sensor ID value --eglstream-id [For CSI EGLStream Consumer] Select EGLStream Producer ID value. Default value 0 --display-id [For nvoverlaysink but] Display ID value --aeRegion [For CSI Only] ROI for AE coordinates(top,left,bottom,right) and weight in that order.eastward.yard., --aeRegion= "30 40 200 200 ane.2" --wbRegion [For CSI Just] ROI for AWB coordinates(pinnacle,left,bottom,right) and weight in that order.e.g., --wbRegion= "30 40 200 200 1.2" --fpsRange [For CSI Simply] FPS range values (low, high) e.1000., --fpsRange= "15 30" --exposure-fourth dimension [For CSI only] Capture exposure time value. east.thousand., --exposure-time=0.033 --wbGains [For CSI Merely] WB gains values (R, GR, GB, B) in that order. e.one thousand., --wbGains= "1.ii i.4 0.8 1.6" --overlayConfig Overlay Configuration Options alphabetize and coordinates in (index, x_pos, y_pos, width, height) order e.g. --overlayConfig= "0, 0, 0, 1280, 720" --enable-exif Enable Exif data --dump-bayer Dump bayer data in addition to epitome capture. --eglConfig EGL window Coordinates (x_pos y_pos) in that gild due east.g., --eglConfig= "50 100" --aeLock [For CSI but] Enable auto exposure lock due east.g., --aeLock --enable-meta Enable Sensor MetaData reporting --nvvideosink-create-eglstream [For nvvideosink EGLStream Producer] Enable nvvideosink EGLStream Producer --callback Enable User callback to set capture settings per frame --app-profile Enable KPI profiling --kpi-numbers Enable KPI measurement -A, --automate Run application in automation mode -Southward, --start-fourth dimension Starting time capture after specified time in seconds. Default = 5 sec (use with --automate or -A only) -Q, --quit-afterward Quit application one time automation is done later specified time in seconds. Default = 0 sec (utilize with --automate or -A only) -C, --count Number of iterations of automation testcase. Default = 1 (employ with --automate or -A only) --capture-gap Number of milliseconds betwixt successive epitome/video capture. Default = 250 msec (apply with --automate and --capture-auto simply) --capture-time Capture video for specified time in seconds. Default = 10 sec (utilize with --automate and --capture-machine simply) --toggle-fashion Toggle betwixt nevertheless and video capture modes for count number of times (use with --automate or -A but) --toggle-sensor Toggle between sensor-id 0 and 1 (use with --automate or -A only) --capture-automobile Do epitome/video capture in automation fashion for count number of times(use with --automate or -A but) --enum-wb Enumerate all white-rest modes for count number of times (use with --automate or -A but) --enum-scm Enumerate all scene modes for count number of times (use with --automate or -A only) --enum-ce Enumerate all color-effect modes for count number of times (use with --automate or -A only) --enum-ae Enumerate all auto-exposure modes for count number of times (utilise with --automate or -A only) --enum-f Enumerate all flash modes for count number of times (use with --automate or -A only) --enum-fl Enumerate all flicker detection and abstention modes for count number of times (use with --automate or -A just) --enum-ct Enumerate contrast value through 0 to 1 past a step of 0.one for count number of times (use with --automate or -A merely) --enum-st Enumerate saturation value through 0 to 2 by a pace of 0.1 for count number of times (utilize with --automate or -A but) --enum-ee Enumerate edge-enhancement value through 0 to i by a step of 0.1 for count number of times (use with --automate or -A only) --enum-ts Enumerate TNR strength value through 0 to 1 by a pace of 0.1 for count number of times (use with --automate or -A only) --enum-tnr Enumerate all TNR modes for count number of times (employ with --automate or -A only) --streaming-mode [For CSI Only] Enable streaming mode ( one =stream simply, 2 =stream+record) --streaming-file File to stream instead of camera input Supported resolutions in instance of CSI Photographic camera (2) : 640x480 (3) : 1280x720 (4) : 1920x1080 (5) : 2104x1560 (6) : 2592x1944 (7) : 2616x1472 (viii) : 3840x2160 (ix) : 3896x2192 (10): 4208x3120 (11): 5632x3168 (12): 5632x4224 Runtime CSI Camera Commands: Help : 'h' Quit : 'q' Set up Capture Style: mo:<val> (i): image (2): video Become Capture Mode: gmo Fix Sensor Id ( 0 to 10): sid:<val> eastward.yard., sid:2 Get Sensor Id: gsid Set sensor orientation: so:<val> (0): none (1): Rotate counter-clockwise ninety degrees (2): Rotate 180 degrees (3): Rotate clockwise xc degrees Get sensor orientation: gso Set Whitebalance Style: wb:<val> (0): off (1): machine (2): incandescent (three): fluorescent (iv): warm-fluorescent (five): daylight (six): cloudy-daylight (7): twilight (eight): shade (9): manual Get Whitebalance Fashion: gwb Gear up Scene-Fashion: scm:<val> (0): face-priority (1): activeness (2): portrait (iii): landscape (4): night (5): night-portrait (half dozen): theatre (seven): beach (8): snow (ix): sunset (10): steady-photograph (11): fireworks (12): sports (thirteen): party (14): candle-low-cal (15): barcode Get Scene-Mode: gscm Set Color Event Mode: ce:<val> (ane): off (two): mono (3): negative (iv): solarize (5): sepia (6): posterize (vii): aqua Get Color Effect Mode: gce Set Motorcar-Exposure Mode: ae:<val> (1): off (2): on (3): OnAutoFlash (iv): OnAlwaysFlash (5): OnFlashRedEye Become Auto-Exposure Way: gae Set Flash Mode: f:<val> (0): off (1): on (2): torch (three): auto Become Wink Mode: gf Gear up Flicker Detection and Avoidance Mode: fl:<val> (0): off (1): 50Hz (two): 60Hz (3): automobile Get Flicker Detection and Abstention Mode: gfl Set Contrast ( 0 to ane): ct:<val> e.chiliad., ct:0.75 Get Dissimilarity: gct Prepare Saturation ( 0 to 2): st:<val> e.g., st:1.25 Get Saturation: gst Prepare Exposure Time in seconds: ext:<val> e.thou., ext:0.033 Get Exposure Fourth dimension: gext Set Auto Exposure Lock(0/ane): ael:<val> e.g., ael:ane Get Auto Exposure Lock: gael Set up Edge Enhancement ( 0 to i): ee:<val> e.1000., ee:0.75 Go Edge Enhancement: gee Ready ROI for AE: It needs 5 values, ROI coordinates(top,left,bottom,right) and weight in that order aer:<val> east.g., aer:20 twenty 400 400 i.2 Get ROI for AE: gaer Set ROI for AWB: It needs five values, ROI coordinates(top,left,bottom,correct) and weight in that order wbr:<val> e.g., wbr:20 xx 400 400 1.2 Get ROI for AWB: gwbr Set FPS range: It needs two values, FPS Range (low, high) in that guild fpsr:<val> e.g., fpsr:15 thirty Go FPS range: gfpsr Ready WB Gains: It needs four values (R, GR, GB, B) in that gild wbg:<val> e.1000., wbg:1.two 2.2 0.8 i.6 Go WB Gains: gwbg Set TNR Force ( 0 to 1): ts:<val> due east.m., ts:0.75 Become TNR Forcefulness: gts Fix TNR Mode: tnr:<val> (0): NoiseReduction_Off (1): NoiseReduction_Fast (2): NoiseReduction_HighQuality Get TNR Style: gtnr Capture: enter 'j' OR followed past a timer (eastward.one thousand., jx5000, capture after five seconds) OR followed by multishot count (e.g., j:6, capture six images) timer/multihot values are optional, capture defaults to single shot with timer =0s Starting time Recording : enter 'i' Terminate Recording : enter '0' Video snapshot : enter 'two' (While recording video) Set Preview Resolution: pcr:<val> east.k., pcr:3 (2) : 640x480 (3) : 1280x720 (4) : 1920x1080 (five) : 2104x1560 (6) : 2592x1944 (7) : 2616x1472 (viii) : 3840x2160 (ix) : 3896x2192 (10): 4208x3120 (xi): 5632x3168 (12): 5632x4224 Note - For preview resolutions 4208x3120 and more use option --svs=nveglglessink Get Preview Resolution: gpcr Set Image Resolution: icr:<val> e.g., icr:iii (2) : 640x480 (3) : 1280x720 (iv) : 1920x1080 (v) : 2104x1560 (6) : 2592x1944 (7) : 2616x1472 (eight) : 3840x2160 (9) : 3896x2192 (10): 4208x3120 (11): 5632x3168 (12): 5632x4224 Get Image Capture Resolution: gicr Set Video Resolution: vcr:<val> e.g., vcr:3 (ii) : 640x480 (3) : 1280x720 (4) : 1920x1080 (5) : 2104x1560 (six) : 2592x1944 (7) : 2616x1472 (eight) : 3840x2160 (ix) : 3896x2192 Get Video Capture Resolution: gvcr Runtime USB Photographic camera Commands: Help : 'h' Quit : 'q' Fix Capture Fashion: mo:<val> (1): image (2): video Go Capture Mode: gmo Capture: enter 'j' OR followed past a timer (eastward.g., jx5000, capture after 5 seconds) OR followed by multishot count (e.thou., j:half-dozen, capture 6 images) timer/multihot values are optional, capture defaults to single shot with timer =0s Start Recording : enter '1' Stop Recording : enter '0' Set Preview Resolution: pcr:<val> e.g., pcr:2 (0) : 176x144 (1) : 320x240 (two) : 640x480 (3) : 1280x720 (4) : 1920x1080 Annotation: Preview/Encode resolution will be aforementioned every bit Capture resolution for USB-Photographic camera Get Preview Resolution: gpcr Go Image Capture Resolution: gicr Get Video Capture Resolution: gvcr Set Capture Device Node: cdn:<val> e.g., cdn:0 (0): /dev/video0 (1): /dev/video1 (2): /dev/video2 Become Capture Device Node: gcdn Runtime encoder configuration options: Set up Encoding Bit-charge per unit(in bytes): br:<val> e.g., br:4000000 Become Encoding Fleck-rate(in bytes): gbr Set Encoding Contour(simply for H.264): ep:<val> e.chiliad., ep:1 (0): Baseline (i): Master (2): High Get Encoding Profile(but for H.264): gep Forcefulness IDR Frame on video Encoder(just for H.264): Enter 'f' Capture snapshots
Sometimes when the board has been only flashed you need to run reboot in society to run nvgstcapture-one.0 successfully. To take snapshots:
nvgstcapture-1.0 #then printing j to accept an snapshot q
Resolutions available to create snapshot:
(2) : 640x480 (3) : 1280x720 (4) : 1920x1080 (5) : 2104x1560 (half-dozen) : 2592x1944 (vii) : 2616x1472 (viii) : 3840x2160 (9) : 3896x2192 (x): 4208x3120 (eleven): 5632x3168 (12): 5632x4224
nvgstcapture-i.0 -thou 1 --epitome-res= ten #gear up one to snapshot style In general, the application is consuming 15% of each of the 4 cores. It is ever displaying video, then this could bear upon.
Capture and tape video
nvgstcapture-1.0 -thousand two # ready the fashion in video one # start video recording two # have a snapshot 0 # stop video recording
In case of video information technology should support:
(two) : 640x480 (3) : 1280x720 (4) : 1920x1080 (5) : 2104x1560 (half dozen) : 2592x1944 (7) : 2616x1472 (eight) : 3840x2160 (9) : 3896x2192
However, it is not possible to gear up other values than 2,three,4,five up to ix.
nvgstcapture-ane.0 -m 2 --video-res=5 elevation
top - 22:fifteen:09 upward 2:30, iv users, load average: 0.47, 0.45, 0.30 Tasks: 267 total, 1 running, 266 sleeping, 0 stopped, 0 zombie %Cpu(s): xi.0 u.s., 6.0 sy, 0.0 ni, 83.0 id, 0.0 wa, 0.0 howdy, 0.0 si, 0.0 st KiB Mem : 8041332 total, 754840 free, 1611400 used, 5675092 buff/cache KiB Swap: 0 full, 0 free, 0 used. 6303032 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM Time+ COMMAND 1639 root 20 0 9.979g 264612 45284 S 52.three iii.three half-dozen:14.66 nvcamera-daemon 27513 nvidia 20 0 815040 13932 10272 S 4.3 0.2 0:01.48 nvgstcapture-ane. There are a daemon and a pipeline. Interesting...
While recording the pipeline (nvgstcapture) increases the ARM load to ten% and then it goes down once more, even with the highest resolution. It will exist interesting to understand what is the daemon doing.
Source: https://developer.ridgerun.com/wiki/index.php?title=JetsonTX2/GStreamer/Capture_and_Display_Pipelines
Posted by: murphyotibitepar.blogspot.com
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