Andy Payne physiii
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| - After making changes, ALWAYS make sure to start up a new server so I can test it. | |
| - Always look for existing code to iterate on instead of creating new code. | |
| - Do not drastically change the patterns before trying to iterate on existing patterns. | |
| - Always kill all existing related servers that may have been created in previous testing before trying to start a new server. | |
| - Always prefer simple solutions | |
| - Avoid duplication of code whenever possible, which means checking for other areas of the codebase that might already have similar code and functionality | |
| - Write code that takes into account the different environments: dev, test, and prod | |
| - You are careful to only make changes that are requested or you are confident are well understood and related to the change being requested | |
| - When fixing an issue or bug, do not introduce a new pattern or technology without first exhausting all options for the existing implementation. And if you finally do this, make sure to remove the old implementation afterwards so we d |
brainstorm
/ esp32_promisc.c
Last active
March 3, 2025 21:31
esp32 promiscuous mode and packet injection experiments
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| // Espressif ESP32 promiscuous mode and packet injection experiments | |
| // by brainstorm at nopcode org | |
| #include "freertos/FreeRTOS.h" | |
| #include "esp_wifi.h" | |
| #include "esp_wifi_internal.h" | |
| #include "lwip/err.h" | |
| #include "esp_system.h" | |
| #include "esp_event.h" | |
| #include "esp_event_loop.h" |
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| var buff = new Buffer(100); | |
| fs.open(file, 'r', function(err, fd) { | |
| fs.read(fd, buff, 0, 100, 0, function(err, bytesRead, buffer) { | |
| var start = buffer.indexOf(new Buffer('mvhd')) + 17; | |
| var timeScale = buffer.readUInt32BE(start, 4); | |
| var duration = buffer.readUInt32BE(start + 4, 4); | |
| var movieLength = Math.floor(duration/timeScale); | |
| console.log('time scale: ' + timeScale); | |
| console.log('duration: ' + duration); |
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| sysctl -w fs.file-max=12000500 | |
| sysctl -w fs.nr_open=20000500 | |
| ulimit -n 4000000 | |
| sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000' | |
| sysctl -w net.ipv4.tcp_rmem='1024 4096 16384' | |
| sysctl -w net.ipv4.tcp_wmem='1024 4096 16384' | |
| sysctl -w net.core.rmem_max=16384 | |
| sysctl -w net.core.wmem_max=16384 | |
| wget http://packages.erlang-solutions.com/erlang-solutions_1.0_all.deb | |
| sudo dpkg -i erlang-solutions_1.0_all.deb |
dbussert
/ livestream
Last active
July 9, 2023 11:33
— forked from deandob/livestream
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| var child_process = require('child_process'), | |
| http = require('http'); | |
| url = require('url'), | |
| ffmpeg = null; | |
| var livestream = function (req, resp) { | |
| // For live streaming, create a fragmented MP4 file with empty moov (no seeking possible). | |
| var input = 'udp://225.1.1.1:8208'; |
laurenarcher
/ livestreamingyoutube
Created
November 21, 2014 14:13
Livestreaming to Youtube Live, Ubuntu, Linux FFMPEG
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| Terminal Commands: | |
| One webcam: | |
| ffmpeg -f alsa -ac 2 -i hw:1,0 -f v4l2 -s 1280x720 -r 10 -i /dev/video1 -vcodec libx264 -pix_fmt yuv420p -preset ultrafast -r 25 -g 20 -b:v 2500k -codec:a libmp3lame -ar 44100 -threads 6 -b:a 11025 -bufsize 512k -f flv rtmp://a.rtmp.youtube.com/live2/YOURSTREAMNAMEHERE | |
| Two webcam overlay: | |
| ffmpeg -f alsa -ac 2 -i hw:1,0 -f v4l2 -s 1280x720 -r 10 -i /dev/video1 -f v4l2 -s 320x240 -r 10 -i /dev/video0 -filter_complex "[1:v]setpts=PTS-STARTPTS[bg]; [2:v]setpts=PTS-STARTPTS[fg]; [bg][fg]overlay=shortest=1 [out]" -map "[out]" -map 0:a -vcodec libx264 -pix_fmt yuv420p -preset veryfast -r 25 -g 20 -b:v 2500k -codec:a libmp3lame -ar 44100 -threads 6 -b:a 11025 -bufsize 512k -f flv rtmp://a.rtmp.youtube.com/live2/YOURSTREAMNAMEHERE |
deandob
/ livestream
Created
February 26, 2014 22:31
Node.JS function to remux mp4/h.264 video from an IP camera to a HTML5 video tag using FFMPEG
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| // Live video stream management for HTML5 video. Uses FFMPEG to connect to H.264 camera stream, | |
| // Camera stream is remuxed to a MP4 stream for HTML5 video compatibility and segments are recorded for later playback | |
| var liveStream = function (req, resp) { // handle each client request by instantiating a new FFMPEG instance | |
| // For live streaming, create a fragmented MP4 file with empty moov (no seeking possible). | |
| var reqUrl = url.parse(req.url, true) | |
| var cameraName = typeof reqUrl.pathname === "string" ? reqUrl.pathname.substring(1) : undefined; | |
| if (cameraName) { | |
| try { | |
| cameraName = decodeURIComponent(cameraName); |
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| <?php | |
| /* | |
| * Warning! Read and use at your own risk! | |
| * | |
| * This tiny proxy script is completely transparent and it passes | |
| * all requests and headers without any checking of any kind. | |
| * The same happens with JSON data. They are simply forwarded. | |
| * | |
| * This is just an easy and convenient solution for the AJAX |
briancollins
/ StripeTutorialPage.html
Last active
October 10, 2019 23:10
— forked from maccman/StripeTutorialPage.html
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> | |
| <title>Stripe Getting Started Form</title> | |
| <!-- The required Stripe lib --> | |
| <script type="text/javascript" src="https://js.stripe.com/v2/"></script> | |
| <!-- jQuery is used only for this example; it isn't required to use Stripe --> |
albi90
/ building node-webkit on armv7 hardfp
Last active
June 19, 2020 17:17
howto build node-webkit on armv7 hardfp
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| sudo apt-get install libatk1.0-0 libc6 libasound2 libcairo2 libcups2 libexpat1 libfontconfig1 libfreetype6 libglib2.0-0 libgnome-keyring0 libgtk2.0-0 libpam0g libpango1.0-0 libpci3 libpcre3 libpixman-1-0 libpng12-0 libspeechd2 libstdc++6 libsqlite3-0 libx11-6 libxau6 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxdmcp6 libxext6 libxfixes3 libxi6 libxinerama1 libxrandr2 libxrender1 libxtst6 zlib1g apache2.2-bin bison curl elfutils fakeroot flex g++ gperf libapache2-mod-php5 libasound2-dev libbz2-dev libcairo2-dev libcups2-dev libcurl4-gnutls-dev libelf-dev libgconf2-dev libgl1-mesa-dev libglib2.0-dev libglu1-mesa-dev libgnome-keyring-dev libgtk2.0-dev libkrb5-dev libnspr4-dev libnss3-dev libpam0g-dev libpci-dev libpulse-dev libsctp-dev libspeechd-dev libsqlite3-dev libssl-dev libudev-dev libwww-perl libxslt1-dev libxss-dev libxt-dev libxtst-dev mesa-common-dev metacity patch perl php5-cgi pkg-config python python-cherrypy3 python-dev python-psutil rpm ruby subversion ttf-dejavu-core ttf-indic-fonts ttf-koc |
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