cdgraff

#!/usr/bin/python
'''
Script to monitor live streams and send an Amazon SNS if the stream is down (and possibly take restorative action)

Future:
 Black detect: ffmpeg -i out.mp4 -vf blackdetect -f null -
 Note the following doesn't seem to fully work without looking at the debug logs
 On live ffmpeg -y -i rtmp://cp30129.live.edgefcs.net/live/videoops-videoops@50541 -vf blackdetect -t 10 -loglevel debug -f null -

'''

cdgraff

set("log.file.path", "/tmp/test.log")
set("server.socket.path","/tmp/<script>.sock")
set("server.socket",true)

# Simple check function to match any "Finished with ...." line in the logs
def checker(n)
  # get info from upcoming request
  m = request.metadata(n)
  # command to find if the file was played according to the log
  command = 'grep -F'

cdgraff

[  { "type": "TIMESTAMP", "name": "time" },
   { "type": "STRING",    "name": "host" },
   { "type": "STRING",    "name": "user" },
   { "type": "STRING",    "name": "method" },
   { "type": "STRING",    "name": "path" },
   { "type": "STRING",    "name": "code" },
   { "type": "INTEGER",   "name": "size" },
   { "type": "STRING",    "name": "referer" },
   { "type": "STRING",    "name": "agent" },
   { "type": "STRING",    "name": "duration" } ]

cdgraff

root@raspberrypi3-e78c6d9:/data# SoapySDRUtil --probe
######################################################
##     Soapy SDR -- the SDR abstraction library     ##
######################################################

Probe device 
usb_claim_interface error -6
Found Rafael Micro R820T tuner
Detached kernel driver
Found Rafael Micro R820T tuner

cdgraff

#!/usr/bin/env python
"""
Produces load on all available CPU cores
"""
from multiprocessing import Pool
from multiprocessing import cpu_count

def f(x):
    while True:
        x*x

cdgraff

const {Storage} = require('@google-cloud/storage');
const ffmpegPath = require('@ffmpeg-installer/ffmpeg').path;
const ffmpeg = require('fluent-ffmpeg');

var bucket = 'test-demo-transcode';
ffmpeg.setFfmpegPath(ffmpegPath);

exports.transcodeVideo = (data, context) => {
  const file = data;

cdgraff

state.audioinjectorpi {
        control.1 {
                iface MIXER
                name 'Master Playback Volume'
                value.0 121
                value.1 121
                comment {
                        access 'read write'
                        type INTEGER
                        count 2

cdgraff

$ git clone -b 1.23 https://github.com/crosstool-ng/crosstool-ng.git
$ cd crosstool-ng
$ ./bootstrap
$ ./configure --prefix=/usr/local
$ make
$ sudo make install
$ cd ..
$ mkdir ctng
$ ct-ng menuconfig

cdgraff

----- Esc -----
Quick change directory: Esc + c
Quick change directory history: Esc + c and then Esc + h
Quick change directory previous entry: Esc + c and then Esc + p
Command line history: Esc + h
Command line previous command: Esc + p
View change: Esc + t (each time you do this shortcut a new directory view will appear)
Print current working directory in command line: Esc + a
Switch between background command line and MC: Ctrl + o
Search/Go to directory in active panel: Esc + s / Ctrl + s then start typing directory name

cdgraff

rtl_fm, a simple narrow band FM demodulator for RTL2832 based DVB-T receivers

Use:	rtl_fm -f freq [-options] [filename]
	-f frequency_to_tune_to [Hz]
	    use multiple -f for scanning (requires squelch)
	    ranges supported, -f 118M:137M:25k
	[-M modulation (default: fm)]
	    fm, wbfm, raw, am, usb, lsb
	    wbfm == -M fm -s 170k -o 4 -A fast -r 32k -l 0 -E deemp
	    raw mode outputs 2x16 bit IQ pairs