Skip to content

Instantly share code, notes, and snippets.

View anselmobattisti's full-sized avatar
🇧🇷
Aqui é Brasil!

Anselmo Battisti anselmobattisti

🇧🇷
Aqui é Brasil!
View GitHub Profile
#!/usr/bin/python
from mininet.net import Mininet
from mininet.node import Controller, RemoteController, OVSController
from mininet.node import CPULimitedHost, Host, Node
from mininet.node import OVSKernelSwitch, UserSwitch
from mininet.cli import CLI
from mininet.log import setLogLevel, info
from mininet.link import TCLink, Intf, OVSLink
from subprocess import call
@anselmobattisti
anselmobattisti / gstreamer pipeline
Created September 10, 2019 23:37
Grab video from webcam and stream it using udpsink via x264
Pipeline to send video (simulating SRC) get the data from video0
gst-launch-1.0 v4l2src device=/dev/video0 \
! decodebin \
! x264enc \
! rtph264pay \
! udpsink host=localhost port=5000
// if you are running it inside a docker container be aware of the host ip in udpsink
gst-launch-1.0 v4l2src device=/dev/video0 \
! decodebin \
# To run the latexdiff in a Docker environment
# 1 - Download the image
docker pull iphoneintosh/latex-docker:latest
# 2 - Run the latexdiff
docker run --rm -v .:/data iphoneintosh/latex-docker:latest latexdiff original.tex rev.tex > diff.tex
@anselmobattisti
anselmobattisti / side_by_side
Created October 4, 2019 21:37
Combine two videos and place than side by side gstreamer
gst-launch-1.0 \
videomixer name=m sink_1::xpos=50 sink_1::ypos=50 sink_2::xpos=400 sink_2::ypos=50 \
! x264enc \
! rtph264pay \
! udpsink host=localhost port=5000 \
videotestsrc pattern=white \
! video/x-raw, format=I420, framerate=5/1, width=740, height=480 \
! m. \
videotestsrc pattern=red \
! videobox left=100 \
@anselmobattisti
anselmobattisti / base64.sh
Created November 22, 2023 18:30
Send image api curl base64
# --wrap=0 will convert the base64 texto into only one line
curl -X POST -H "Content-Type: application/json" -d '{"image" : "'"$( base64 --wrap=0 ./imgs/knative.png)"'"}' http://127.0.0.1:8080
from collections import OrderedDict
msg = ""
positions = OrderedDict([
("Start_Bit", 2),
("Packet_Length", 1),
("Protocol_Number", 1),
("Location_Source_Type", 1),
("Terminal_ID", 8),
# How to adjust brightness for HD Pro Webcam C920 on ubuntu 20.04
#
# Install the v4l2-ctl
apt-get install v4l2-ctl
# list the decives
v4l2-ctl --list-devices
###
HD Pro Webcam C920 (usb-0000:00:14.0-1.2):
# Aumentar o tamanho do disco
virt-filesystems --long -h --all -a olddisk.qcow2
qemu-img create -f qcow2 -o preallocation=metadata newdisk.qcow2 50G
# /dev/sda3 é o nome da partição do disco antigo que vai ser alterado
virt-resize --expand /dev/sda3 olddisk newdisk.qcow2
# os dados são copiados para o disco novo, mova o disco novo sobre o antigo
@article{mijumbi_network_2016,
title = {Network function virtualization: {State}-of-the-art and research challenges},
volume = {18},
issn = {1553877X},
doi = {10.1109/COMST.2015.2477041},
number = {1},
journal = {IEEE Communications Surveys and Tutorials},
author = {Mijumbi, Rashid and Serrat, Joan and Gorricho, Juan Luis and Bouten, Niels and De Turck, Filip and Boutaba, Raouf},
year = {2016},
@anselmobattisti
anselmobattisti / gstreamer_webcam_to_udp
Created September 7, 2019 16:02
Capture webcam video and stream it using gstreamer
Capture and send video
gst-launch-1.0 v4l2src device=/dev/video0 \
! decodebin \
! x264enc \
! rtph264pay \
! udpsink port=5000
Show the video
gst-launch-1.0 \