jetsonhacks

For best results, you should read through the official NVIDIA documentation found on:

https://developer.nvidia.com/linux-tegra-rel-21

In particular, the Quick Start Guide.

For this process you will need:

• A host desktop or laptop computer running Ubuntu Linux 12.04 is officially recommended. In practice, this may be a virtual machine, I have used VirtualBox in the past. Also, I've successfully flashed from Ubuntu Linux 14.04. Your mileage may vary.
• Micro USB cable provided with the Jetson TK1 kit
• Jetson TK1 and power supply

jetsonhacks

#!/bin/sh
# Video Mixer example 
# 3 MPEG IPCAMS and local webcam
# Webcam is MJPEG 1280x720
JPEG_DEC="jpegparse ! queue ! jpegdec"
VID_SPEC="videorate ! videoscale ! video/x-raw-yuv,framerate=30/1,width=960,height=540"
NVVIDCONV="queue ! nvvidconv"
VELEM="v4l2src device=/dev/video0" #video0 is a Logitech c920 webcam with built-in H.264 compression & MJPEG
VCAPS="image/jpeg, width=1280, height=720, framerate=30/1"
# Video Source

jetsonhacks

#!/bin/sh
# NVIDIA Jetson TK1
# Get rtsp stream from network, decode and display
SOURCE=<IP ADDRESS OF MACHINE, e.g. 10.10.10.10>
#VIDEO Capabilities of the receiver
VIDEO_CAPS="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264"
TCP_VIDEO_CAPS="application/x-rtp"
VIDEO_SINK="videoconvert ! xvimagesink sync=false"
TCPSRC="tcpclientsrc host=$SOURCE port=5000"
VIDEO_DEC="h264parse ! omxh264dec"

jetsonhacks

#!/bin/sh
# NVIDIA Jetson TK1
# Use Gstreamer to grab H.264 video and audio stream from Logitech c920 webcam
# Preview video on screen
# Save Video and Audio to a file
# Send video as RTSP stream over TCP
# IP Address of the this machine hosting the TCP stream
IP_ADDRESS=<ENTER IP ADDRESS HERE e.g 10.10.10.10>
# You can list devices:
# $ v4l2-ctl --list-devices

jetsonhacks

#!/bin/sh
# Run two video webcam feeds in two different windows
# Script assumes that:
# Microsoft LifeCam Studio is video0
# Logitech c920 is video1
# Both cameras run max 1920x1080 MJPG, but two have both on a USB bus they can run @ 1280x720 max
# MS is made a little smaller
# text overlay and clockoverlay may be added to the pipeline, but render poorly
VELEM="v4l2src device=/dev/video0 do-timestamp=true"
VCAPS="image/jpeg, width=640, height=480, framerate=30/1"

jetsonhacks

#!/bin/sh
# Show a webcam that delivers video 1920x1080 MJPG on screen
VELEM="v4l2src device=/dev/video0"
VCAPS="image/jpeg, width=1920, height=1080, framerate=30/1"
VSOURCE="$VELEM ! $VCAPS"
VIDEO_SINK="videoconvert ! videoscale ! xvimagesink sync=false"
VIDEO_DECODE="jpegparse ! jpegdec"

# echo is just for debugging purposes
echo gst-launch-1.0 -vvv \

jetsonhacks

For this process you will need:

• A host desktop or laptop computer running Ubuntu Linux 12.04. This may be a VM, I've used VirtualBox.
• Micro USB cable provided with the Jetson TK1 kit
• Jetson TK1 and power supply
• Optional: DB9 null modem cable if you want to use the serial console during boot

0. On your host computer open a Terminal, then create a directory to operate from, and switch to it. As an example:

mkdir ~/Grinch
cd ~/Grinch

jetsonhacks

Before you begin, ensure that you've setup network access, either with ethernet or wlan.

Setup timezone

sudo dpkg-reconfigure tzdata

Typically we use "US/Pacific-New"

Mount sdcard

jetsonhacks

#!/bin/sh
# Install Gstreamer 1.0 on the NVIDIA Jetson TK1
apt-get install gstreamer1.0-tools gstreamer1.0-alsa \
  gstreamer1.0-plugins-base gstreamer1.0-plugins-good \
  gstreamer1.0-plugins-ugly gstreamer1.0-plugins-bad gstreamer1.0-libav -y

jetsonhacks

#!/bin/sh
# Preview and save webcam video on NVIDIA Jetson TK1
# Grab audio and video (in h264 format) from Logitech c920 @ 1920x1080
# Preview @ 1280x720 on screen
# Store video to file named gEncode1080p.mp4
# Logitech c920 is video1 on this machine
VELEM="v4l2src device=/dev/video1 do-timestamp=true"
# Video capability from the camera - get h264 1920x1080
VCAPS="video/x-h264, width=1920, height=1080, framerate=30/1"