csghone

NOTE: This was originally maintained in TI E2E wiki here. It was written primarily for Windows users. Some data might be out of date - corrections are welcome.

Downloads

• For Ubuntu:
  • sudo apt-get install mpv ffmpeg mplayer mkvtoolnix-gui mkvtoolnix x264 x265 lame
  • If you need nightly builds check following PPAs:
    • Jonathon F
• Doug McMahon

csghone

Summary

• Overall setup consists of
  • EC2 instance with open outbound internet access and only SSH inbound access via OpenVPN server
  • S3 endpoints to optimize S3 usage
  • IPSEC tunnel to local firewall
  • OpenVPN server with a public IP

Create an account

• https://portal.aws.amazon.com/billing/signup#/start

csghone

// Ref: https://en.cppreference.com/w/cpp/types/enable_if
#include <type_traits>
#include <iostream>


struct TypeTrue {
    static constexpr bool enable_if_condition = true;
};

struct TypeFalse {

csghone

#!/bin/bash
HOST=192.xxx.xxx.xxx
PORT=1234
echo 'some_string' | socat - EXEC:"telnet $HOST $PORT",pty,setsid,ctty | tail -n +5

csghone

Summary

• High level explanation of basic photography terminology as well as optics and imaging in general
• References to give a non-mathematical, intuitive understanding of optics and imaging
• Corrections/Additions are welcome

Focal length of lenses

• We can assume the complex lens assembly is replaced by an equivalent thin-lens of same focal length.
  • https://www.khanacademy.org/science/physics/geometric-optics/lenses/v/convex-lens-examples
• http://hyperphysics.phy-astr.gsu.edu/hbase/geoopt/lenseq.html

csghone

#!/bin/bash

# listen_feed.sh 224.0.31.130 14382 ens6d1 out_file
# Runs: socat udp-datagram:224.0.31.130:14382,bind=:14382,ip-add-membership=224.0.31.130:ens6d1 /dev/null > out_file

UDP_ADDRESS="224.0.31.130"
UDP_PORT="14382"
INTERFACE="ens6d1"

if [ $# -ne 3 ] && [ $# -ne 4 ]; then

csghone

" If startup is slow - change clipboard options

" Show line/row/col numbers
set showcmd " This should be before nocompatible or nocp
set nu
set ruler
set laststatus=2
set incsearch
set history=10000

csghone

from cffi_example.lzo_ext import ffi, lib

# `compressed_data` is `bytes` array
# `compressed_data_len` is int
uncompressed_data = ffi.new("char[]", 10000)
ret_val = lib.decompress(compressed_data, compressed_data_len, uncompressed_data)

csghone

# Generate module `cffi_example` using `python3 generate_cffi_example_module.py`
import os

from cffi import FFI

ffi = FFI()

person_header = """
    unsigned int decompress(const uint8_t* raw_data, size_t compressed_size, uint8_t* decompressed_data);
"""

csghone

#!/usr/bin/env python3
"""
eg:
python3 ./logging_exceptions_argparsing_retry_in_python.py  -w -x opt1 -y 3 -z 1 2 3 -f ~/.bashrc -d 20190101 --inp_datestring 20191101
"""
from __future__ import print_function

import os
import sys
import argparse