This is the example command that will take pictures periodically:
$ ffmpeg -f v4l2 -i {{device, e.g. /dev/video1}} -ss 0:0:2 -s 120x90 -vsync 2 -r 4 -updatefirst 1 stream.png
-f v4l2
uses the standard linux /dev/video decoder thing.
diff --git a/lib/frecon/server.rb b/lib/frecon/server.rb | |
index 5a524de..06b6435 100644 | |
--- a/lib/frecon/server.rb | |
+++ b/lib/frecon/server.rb | |
@@ -13,6 +13,8 @@ module FReCon | |
before do | |
content_type "application/json" | |
+ | |
+ p request.body.read.to_s |
require "date" | |
require "json" | |
require "sinatra" | |
require "time" | |
module StreamMessageFormatter | |
def self.format(object) | |
return JSON.generate(object) << "\r\n" | |
end | |
end |
#!/usr/bin/env ruby | |
require "net/http" | |
require "json" | |
require "pry" | |
# Uncomment this line and put in your default location if | |
# you want to have a default location (in case of network | |
# errors). | |
# $default_latlon = [90.0, 90.0] |
require "net/http" | |
require "pry" | |
# Parameters for episode looping. | |
# | |
# Note that 404 seems to be reserved for whining. | |
MIN_EPISODE_NUMBER = 001 | |
MAX_EPISODE_NUMBER = 417 | |
FORMAT = ".ogv" |
require "matrix" | |
require "pry" | |
class Integer | |
# Method to compute binomial coefficient nCk (where n is this object, | |
# and k is some other integer. | |
def choose(k) | |
# n! / (n-k)! | |
top = (((self-k)+1)..(self)).inject(1, &:*) |
#!/bin/sh | |
ruby -e "\"`ps -ef|grep \<defunct\>`\".split(/$/).each{|l|puts(l.match(/^(?<user>\w+)\W+(?<pid>\d+)\W+(?<ppid>\d+)/)[:pid])}" |
require 'uri' | |
require 'net/http' | |
module Monoid | |
class Site | |
attr_accessor :base_uri | |
def initialize(base_uri = URI.parse('https://larsenwork.com')) | |
@base_uri = base_uri | |
end |
CC = clang | |
LD = ld | |
LDSHARED = clang -dynamic -bundle | |
CFLAGS = -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wno-tautological-compare -Wno-parentheses-equality -Wno-constant-logical-operand -Wno-self-assign -Wunused-variable -Werror=implicit-int -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=shorten-64-to-32 -Werror=implicit-function-declaration -Werror=division-by-zero -Werror=deprecated-declarations -Werror=extra-tokens -pipe | |
XCFLAGS = -D_FORTIFY_SOURCE=2 -fstack-protector -fno-strict-overflow -fvisibility=hidden -DRUBY_EXPORT -fPIE | |
CPPFLAGS = -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -I. -I.ext/include/x86_64-darwin16 -I./include -I. -I./enc/unicode/data/8.0.0 | |
DLDFLAGS = -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -fstack-protector -Wl,-u,_objc_msgSend -Wl,-pie -framework CoreFoundation | |
SOLIBS = -lgmp | |
Apple LLVM version 8.0.0 |
#!/bin/bash | |
function check_user_and_host { | |
_ssh_result=$(ssh -o ConnectTimeout=5 -o BatchMode=yes -o StrictHostKeyChecking=no $1@$2 "echo \"\`who | grep -c . \`\"; true" 2>/dev/null) | |
} | |
function check_and_output_host { | |
check_user_and_host $1 $2 && echo "$2: up, $_ssh_result users logged in" || echo "$2: down" | |
} |