• Link to https://www.periscope.tv/ in headline
• Links to RPi hardware (buy RPi, RPi camera, camera cable, ...)
• Periscope/Pi logo
• Periscope Producer (link to page)
  • https://help.pscp.tv/customer/en/portal/articles/2600293-what-is-periscope-producer
• Focus on RPi Zero W
• WiFi setup
• SSH setup
• RPi image
• Scripts for self-setup
• Performance, no transcoding
• Camera rig, hardware used
• How to get necessary data from Periscope (stream name/key, links)
• Debugging, troubleshooting issues
  • grep -i piriscope /var/logs/syslog
  • raspistill with command-line example
  • raspivid with command-line example
  • Periscope connection issues, stream key
• Pictures of example setup & stream
• "From scratch" instructions

• JSON, YAML? Comments?
• /etc/piriscope.conf
• Update init.d script: piriscope -c /etc/piriscope.conf
• Still also support command-line configuration (e.g. piriscope -k xxxxxxxx)

• Install ffmpeg package
  • wget https://github.com/ccrisan/motioneye/wiki/precompiled/ffmpeg_3.1.1-1_armhf.deb
  • sudo dpkg -i ffmpeg_3.1.1-1_armhf.deb
• If camera is not enabled (raspi-config)
  • https://raspberrypi.stackexchange.com/questions/14229/how-can-i-enable-the-camera-without-using-raspi-config
  • Enable camera
  • Reboot (required)
• If not grep bcm2835-v4l2 /etc/modules; then
  • modprobe bcm2835-v4l2
  • echo modprobe bcm2835-v4l2 >> /etc/modules

• Explore capturing and streaming audio along with video
• What RPi hardware is needed for this?

• Search PATH for raspivid, ffmpeg, v4l2-ctl
• Use exec.LookPath
• Fail immediately if they are not present

• Piriscope can also run as a Docker image
• Built on top of Alpine ARM or Raspbian? (can use dpkg if Raspbian)
• e.g. docker run --restart always -d schmich/piriscope
• Easy way to bundle dependencies? (ffmpeg, x264, ...)

• Full/verbose logging if interactive (e.g. running from command-line)
• Minimal/periodic logging if non-interactive (e.g. running as service, logging to syslog)

• Install with dpkg, manual dependencies
• Install with dependencies via gdebi
  • apt-get install gdebi-core
• Custom Debian repo
  • mkdir repo
  • cd repo && mkdir {conf,dists,incoming,indices,logs,pool,project,tmp}
  • http://stackoverflow.com/questions/8477036/how-to-make-debian-package-install-dependencies

v4l2-ctl --set-ctrl=...

                     brightness (int)    : min=0 max=100 step=1 default=50 value=50 flags=slider
                       contrast (int)    : min=-100 max=100 step=1 default=0 value=0 flags=slider
                     saturation (int)    : min=-100 max=100 step=1 default=0 value=0 flags=slider
                    red_balance (int)    : min=1 max=7999 step=1 default=1000 value=1000 flags=slider
                   blue_balance (int)    : min=1 max=7999 step=1 default=1000 value=1000 flags=slider
                horizontal_flip (bool)   : default=0 value=0
                  vertical_flip (bool)   : default=0 value=0
           power_line_frequency (menu)   : min=0 max=3 default=1 value=1
                      sharpness (int)    : min=-100 max=100 step=1 default=0 value=30 flags=slider
                  color_effects (menu)   : min=0 max=15 default=0 value=0

• YouTube Live
• Twitch
• Periscope
• ustream
• ...