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Live Transcoding

This is a collection of working commandline examples to show how one could use FFMpeg and VLC for live transcoding of video streams. All examples have been tested on OSX 10.7.5 with FFMPeg 1.1.3 and VLC 2.0.5 in early 2013.

Documentation links

• FFMpeg, Muxers, Encoders, Protocols
• FFMPEG multiple outputs
• VLC Docu, Advanced Use

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#!/usr/bin/env bash
#Author: https://groups.google.com/forum/#!topic/coreos-dev/JAeABXnQzuE
pushd $(dirname $0) > /dev/null; CURRABSPATH=$(readlink -nf "$(pwd)"); popd > /dev/null; # Get the directory in which the script resides
set -x
MUSLPKG="musl:musl.tgz:http://www.musl-libc.org/releases/musl-1.1.14.tar.gz"
LEVTPKG="libevent:libevent2.tgz:https://github.com/libevent/libevent/releases/download/release-2.0.22-stable/libevent-2.0.22-stable.tar.gz"
TMUXPKG="tmux:tmux.tgz:https://github.com/tmux/tmux/releases/download/2.1/tmux-2.1.tar.gz"
NCRSPKG="ncurses:ncurses.tgz:http://ftp.gnu.org/gnu/ncurses/ncurses-6.0.tar.gz"
TEMPDIR="$CURRABSPATH/tmp"
TMPLIB="tempinstall/lib"

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{
	"service_id":"%{req.service_id}V",
	"service_version":"%{fastly_info.version}V",
	"time_start":%{begin:msec}t,
	"time_end":%{end:msec}t,
	"time_elapsed":%{time.elapsed.usec}V,
	"client_ip":"%{req.http.Fastly-Client-IP}V",
	"request":"%{req.request}V",
	"protocol":"%{req.proto}V",
	"host":"%{req.http.Fastly-Orig-Host}V",

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Set parameters

$ export ECS_CLUSTER_NAME={YOUR_ECS_CLUSTER_NAME}
$ export ECS_SERVICE_NAME={YOUR_ECS_SERVICE_NAME}

RegisterScalableTarget

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# ## may fail because no apt-tansport-https... go ahead.
# sudo apt-get update
# sudo apt-get dist-upgrade -y 

# requires apt-transport-https
sudo apt-get install apt-transport-https -y

# get docker apt repo
sudo apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
sudo echo "deb https://apt.dockerproject.org/repo debian-jessie main" | sudo tee /etc/apt/sources.list.d/docker.list

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#include "CSCubeBGRA.h""

#include <sstream>
#include <cmath>

int getNearestIndexForTime(const vector<double> &times, double rTime)
{
    // binary search
    // returns an iterator pointing to the first element in the range [first,last) which does not compare less than val.
    auto pFrameIndex = lower_bound(times.begin(),times.end(),rTime);

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{
  "frameworks": {
    "net46":{
      "dependencies": {
          "Google.Cloud.Storage.V1": "1.0.0-beta05"
      }
    }
  }
}

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## ATTENTION: Complete purges history.. make a backup if you want..
# Clear bash history file and loaded history.
> ~/.bash_history && history -c


## deduplicate
## add to ~/.bashrc && ~/.bash_profile
HISTCONTROL=ignoreboth:erasedups
HISTCONTROL=ignoreboth:erasedups
HISTSIZE=50000

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Parameters

Container: MP4

Parameter	YouTube recommends setting
-movflags faststart	moov atom at the front of the file (Fast Start)

Video codec: H.264

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sudo apt-get install gpg libssl-dev
## the default "sudo gpg --keyserver pool.sks-keyservers.net --recv-key 1285491434D8786F" fails.. pool.sks-keyservers.net is having problems...
gpg --keyserver keyserver.ubuntu.com --recv-key 1285491434D8786F && gpg -a --export 1285491434D8786F | sudo apt-key add -
echo 'deb http://linux.dell.com/repo/community/openmanage/932/bionic bionic main' | sudo tee -a /etc/apt/sources.list.d/linux.dell.com.sources.list
sudo apt-get update

sudo apt-get install srvadmin-idracadm8
sudo apt install ipmitool