notes_aravis_tk1.txt

Used the rootfs from:
https://developer.toradex.com/files/toradex-dev/uploads/media/Colibri/Linux/Images/Apalis-TK1_LXDE-Image_2.8b3.111-20180626.tar.bz2

Use the Aravis binaries from:
https://drive.google.com/drive/folders/1ZW8HGW0nQkewQoyJt5r-BXwAsdFAAWdK?usp=sharing

###############################################################################
# Running TK1 rootfs on X86 host in Chroot for Testing
###############################################################################
wget https://developer.toradex.com/files/toradex-dev/uploads/media/Colibri/Linux/Images/Apalis-TK1_LXDE-Image_2.8b3.111-20180626.tar.bz2
tar xvpf Apalis-TK1_LXDE-Image_2.8b3.111-20180626.tar.bz2
cd Apalis-TK1_LXDE-Image_2.8.3/rootfs/

mount -t sysfs none sys
mount -t devtmpfs none dev/
mount -t devpts none dev/pts/
mount -t proc none proc
mount -t tmpfs none tmp/

cp /usr/bin/qemu-arm-static usr/bin/
rm etc/resolv.conf
cp /etc/resolv.conf etc/
cp /tmp/aravis.tar.gz tmp/
chroot .

##
## Outside the Chroot shell.
## SSH to the remote Linux Host with port forwarding to test the stream
ssh -L 8090:localhost:8090 -L 8000:localhost:8000 192.168.56.101

###############################################################################
# Software-only pipeline for testing without access to Tegra Hardware
###############################################################################

ARAVIS_PIPELINE="\
videotestsrc is-live=true !\
 capsfilter caps=\"video/x-raw, format=I420, width=(int)1280, height=(int)720\" !\
 timeoverlay !\
 gdkpixbufoverlay name=test_overlay offset-x=300 offset-y=500 location=/usr/share/icons/nuoveXT2/128x128/devices/computer.png !\
 videoconvert !\
 avenc_mjpeg !\
 appsink name=pysink max-buffers=5 drop=true \
"

###############################################################################
# Actual setup guide
###############################################################################
opkg update

cd /tmp/
tar xvf aravis.tar.gz
opkg install deploy/ipk/armv7at2hf-neon/aravis*ipk

opkg install python3
opkg install python3-pygobject

##
## At this point, ldconfig breaks and fails to find NVIDIA libraries.
##
cat >> /etc/ld.so.conf <<EOF
/usr/lib/arm-linux-gnueabihf/tegra
/usr/lib/arm-linux-gnueabihf/tegra-egl
EOF

##
## regenerate ldconfig cache after re-adding the paths
##
ldconfig

##
## NVIDIA plugins for HW-accelerated video processing.
## They should have been already installed so this command
## should not do anything
##
opkg install linux-driver-package-gstnvvidconv-1.0 linux-driver-package-nvgstjpeg-1.0

##
## the plugin for overlays
##
opkg install gstreamer1.0-plugins-good-gdkpixbuf

##
## clear GStreamer cache.
## This is necessary if you launched GStreamer after installing Python3
## but before fixing the 'ldconfig' cache because if GStreamer fails
## to find the libraries, it adds NVIDIA plugins to the blacklist
##
rm -r ~/.cache/gstreamer-1.0/


##
## For optimal performance, use the script to increase network buffers
## and enable two CPU cores in Performance Mode.
## https://github.com/astarasikov/meta-aravis/blob/2018_aravis_gst1.0/demos/hls/tegra_tweaks.sh
##
./tegra_tweaks.sh

##
## get the MJPEG server code. You can also clone the whole repository
## using Git. You might want to customize the pipeline string in code
## or supply the pipeline configuration string as a command-line argument.
##
wget https://raw.githubusercontent.com/astarasikov/meta-aravis/2018_aravis_gst1.0/demos/hls/http_mjpeg.py
wget https://raw.githubusercontent.com/astarasikov/meta-aravis/2018_aravis_gst1.0/demos/hls/test_mjpeg.html
python3 http_mjpeg.py