How open source enables state-of-the-art media production

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## How Open-Source and R Enable State-of-the-Art Media Production

### Eric Nantz
### Statistician & Content Creator
### UseR! 09-July-2021

🎤 [r-podcast.org](https://www.r-podcast.org) | <svg viewBox="0 0 576 512" style="height:1em;position:relative;display:inline-block;top:.1em;" xmlns="http://www.w3.org/2000/svg">  <path d="M549.655 124.083c-6.281-23.65-24.787-42.276-48.284-48.597C458.781 64 288 64 288 64S117.22 64 74.629 75.486c-23.497 6.322-42.003 24.947-48.284 48.597-11.412 42.867-11.412 132.305-11.412 132.305s0 89.438 11.412 132.305c6.281 23.65 24.787 41.5 48.284 47.821C117.22 448 288 448 288 448s170.78 0 213.371-11.486c23.497-6.321 42.003-24.171 48.284-47.821 11.412-42.867 11.412-132.305 11.412-132.305s0-89.438-11.412-132.305zm-317.51 213.508V175.185l142.739 81.205-142.739 81.201z"></path></svg> [shinydevseries.com](https://youtube.com/shinydeveloperseries) <br> | 📰 [rweekly.org](https://rweekly.org)
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Slides available at [rpodcast.github.io/r_media_prod](https://rpodcast.github.io/r_media_prod)

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### The R for Data Science Slack Community

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The Mockup Blog authored by Thomas Mock, written with the `{distill}` package.
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### Sharing insights via blogging

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## The Destination (and Journey)
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#### [community.rstudio.com/t/hotshots-racing-random-driver-car-app-shiny-contest-submission/104927](https://community.rstudio.com/t/hotshots-racing-random-driver-car-app-shiny-contest-submission/104927)

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#### [youtube.com/watch?v=1rBipvBuWL4](https://www.youtube.com/watch?v=1rBipvBuWL4)

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# The Seeds are Planted

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#### Jim Hester's R Development Video Tutorials
<img src="img/jim_hester_with_border.png" width="100%"/>
[youtube.com/channel/UC3mcThQVORlwCY4k1vB0FmQ](https://www.youtube.com/channel/UC3mcThQVORlwCY4k1vB0FmQ)

]

.pull-right[

#### Martin Wimpress' Dev Channel
<img src="img/martin_wimpress_with_border.png" width="100%"/>
[youtube.com/watch?v=mduyk66lvb0](https://www.youtube.com/watch?v=mduyk66lvb0)
]

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### Each produced with OBS!
]

???
OBS Stuff
- plugins are like R packages
- automation and integration possible with open APIs
---

.center[
## OBS Studio
]

.left-column[
- Cross-platform audio & video production
- The **de-facto standard** for streaming content to YouTube & Twitch
- Immense flexibility via plugins
- Most tutorials are targeted to the gaming community
]

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.center[
<img src="img/obs_interface_screenshot.png" width="95%"/>
[obsstudio.com](https://obsstudio.com)
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---

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## The Building Blocks of OBS
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## Sources
]
* Individual components with their own unique **attributes** to be captured or displayed in your production
* Examples: Camera, audio inputs, screen capture, window capture, media files, and much more
]

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.center[
## Scenes
]
* **Collection** of one or more sources
* **Any** type of source can be included, including other **scenes!**
]

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# 🤔 That sounds quite familiar...
]

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.center[
# The connections with <svg viewBox="0 0 581 512" style="height:1em;position:relative;display:inline-block;top:.1em;fill:blue;" xmlns="http://www.w3.org/2000/svg">  <path d="M581 226.6C581 119.1 450.9 32 290.5 32S0 119.1 0 226.6C0 322.4 103.3 402 239.4 418.1V480h99.1v-61.5c24.3-2.7 47.6-7.4 69.4-13.9L448 480h112l-67.4-113.7c54.5-35.4 88.4-84.9 88.4-139.7zm-466.8 14.5c0-73.5 98.9-133 220.8-133s211.9 40.7 211.9 133c0 50.1-26.5 85-70.3 106.4-2.4-1.6-4.7-2.9-6.4-3.7-10.2-5.2-27.8-10.5-27.8-10.5s86.6-6.4 86.6-92.7-90.6-87.9-90.6-87.9h-199V361c-74.1-21.5-125.2-67.1-125.2-119.9zm225.1 38.3v-55.6c57.8 0 87.8-6.8 87.8 27.3 0 36.5-38.2 28.3-87.8 28.3zm-.9 72.5H365c10.8 0 18.9 11.7 24 19.2-16.1 1.9-33 2.8-50.6 2.9v-22.1z"></path></svg>
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.center[
## Vectors
]
* Individual components with their own unique **attributes** 
* Examples: character, numeric, boolean
]

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## Lists
]
* **Collection** of one or more objects
* **Any** type of object can be included, including other **lists!**
]

---

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## My Welcome Scene
]

.welcome-box[]

.image-location[
<svg viewBox="0 0 512 512" style="position:relative;display:inline-block;top:.1em;fill:#34ebc0;height:8em;" xmlns="http://www.w3.org/2000/svg">  <path d="M464 64H48C21.49 64 0 85.49 0 112v288c0 26.51 21.49 48 48 48h416c26.51 0 48-21.49 48-48V112c0-26.51-21.49-48-48-48zm-6 336H54a6 6 0 0 1-6-6V118a6 6 0 0 1 6-6h404a6 6 0 0 1 6 6v276a6 6 0 0 1-6 6zM128 152c-22.091 0-40 17.909-40 40s17.909 40 40 40 40-17.909 40-40-17.909-40-40-40zM96 352h320v-80l-87.515-87.515c-4.686-4.686-12.284-4.686-16.971 0L192 304l-39.515-39.515c-4.686-4.686-12.284-4.686-16.971 0L96 304v48z"></path></svg>
]

.obs-image[
<img src="img/welcome_background_only.png" width="100%"/>
]

.footer-location[
<svg viewBox="0 0 576 512" style="position:relative;display:inline-block;top:.1em;fill:#34ebc0;height:8em;" xmlns="http://www.w3.org/2000/svg">  <path d="M552 64H112c-20.858 0-38.643 13.377-45.248 32H24c-13.255 0-24 10.745-24 24v272c0 30.928 25.072 56 56 56h496c13.255 0 24-10.745 24-24V88c0-13.255-10.745-24-24-24zM48 392V144h16v248c0 4.411-3.589 8-8 8s-8-3.589-8-8zm480 8H111.422c.374-2.614.578-5.283.578-8V112h416v288zM172 280h136c6.627 0 12-5.373 12-12v-96c0-6.627-5.373-12-12-12H172c-6.627 0-12 5.373-12 12v96c0 6.627 5.373 12 12 12zm28-80h80v40h-80v-40zm-40 140v-24c0-6.627 5.373-12 12-12h136c6.627 0 12 5.373 12 12v24c0 6.627-5.373 12-12 12H172c-6.627 0-12-5.373-12-12zm192 0v-24c0-6.627 5.373-12 12-12h104c6.627 0 12 5.373 12 12v24c0 6.627-5.373 12-12 12H364c-6.627 0-12-5.373-12-12zm0-144v-24c0-6.627 5.373-12 12-12h104c6.627 0 12 5.373 12 12v24c0 6.627-5.373 12-12 12H364c-6.627 0-12-5.373-12-12zm0 72v-24c0-6.627 5.373-12 12-12h104c6.627 0 12 5.373 12 12v24c0 6.627-5.373 12-12 12H364c-6.627 0-12-5.373-12-12z"></path></svg>
]

.obs-image[
<img src="img/welcome_background_footer.png" width="100%"/>
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.camera-location[
<svg viewBox="0 0 512 512" style="position:relative;display:inline-block;top:.1em;fill:#34ebc0;height:8em;" xmlns="http://www.w3.org/2000/svg">  <path d="M512 144v288c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V144c0-26.5 21.5-48 48-48h88l12.3-32.9c7-18.7 24.9-31.1 44.9-31.1h125.5c20 0 37.9 12.4 44.9 31.1L376 96h88c26.5 0 48 21.5 48 48zM376 288c0-66.2-53.8-120-120-120s-120 53.8-120 120 53.8 120 120 120 120-53.8 120-120zm-32 0c0 48.5-39.5 88-88 88s-88-39.5-88-88 39.5-88 88-88 88 39.5 88 88z"></path></svg>
]

.mic-location[
<svg viewBox="0 0 352 512" style="position:relative;display:inline-block;top:.1em;fill:#34ebc0;height:8em;" xmlns="http://www.w3.org/2000/svg">  <path d="M176 352c53.02 0 96-42.98 96-96V96c0-53.02-42.98-96-96-96S80 42.98 80 96v160c0 53.02 42.98 96 96 96zm160-160h-16c-8.84 0-16 7.16-16 16v48c0 74.8-64.49 134.82-140.79 127.38C96.71 376.89 48 317.11 48 250.3V208c0-8.84-7.16-16-16-16H16c-8.84 0-16 7.16-16 16v40.16c0 89.64 63.97 169.55 152 181.69V464H96c-8.84 0-16 7.16-16 16v16c0 8.84 7.16 16 16 16h160c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16h-56v-33.77C285.71 418.47 352 344.9 352 256v-48c0-8.84-7.16-16-16-16z"></path></svg>
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.obs-image[
<img src="img/welcome_obs.png" width="100%"/>
]

???
## OBS Parallels to <svg viewBox="0 0 581 512" style="height:1em;position:relative;display:inline-block;top:.1em;fill:blue;" xmlns="http://www.w3.org/2000/svg">  <path d="M581 226.6C581 119.1 450.9 32 290.5 32S0 119.1 0 226.6C0 322.4 103.3 402 239.4 418.1V480h99.1v-61.5c24.3-2.7 47.6-7.4 69.4-13.9L448 480h112l-67.4-113.7c54.5-35.4 88.4-84.9 88.4-139.7zm-466.8 14.5c0-73.5 98.9-133 220.8-133s211.9 40.7 211.9 133c0 50.1-26.5 85-70.3 106.4-2.4-1.6-4.7-2.9-6.4-3.7-10.2-5.2-27.8-10.5-27.8-10.5s86.6-6.4 86.6-92.7-90.6-87.9-90.6-87.9h-199V361c-74.1-21.5-125.2-67.1-125.2-119.9zm225.1 38.3v-55.6c57.8 0 87.8-6.8 87.8 27.3 0 36.5-38.2 28.3-87.8 28.3zm-.9 72.5H365c10.8 0 18.9 11.7 24 19.2-16.1 1.9-33 2.8-50.6 2.9v-22.1z"></path></svg>
+ Base install has a lot of built-in features already to get you started
+ plugins can enhance your experience developing and serving streams, much like community packages in R
+ Organizing the building blocks of your setup with scenes, which contains sources and can even contain more scenes. This is like the list object in R

---

.center[
# My Welcome Scene
]

.welcome-box[]

.pull-right[

<div id="htmlwidget-727219a40a54cd0fa579" style="width:500px;height:400px;" class="jsonedit html-widget"></div>
<script type="application/json" data-for="htmlwidget-727219a40a54cd0fa579">{"x":{"data":{"[A] Microphone Scene":["[SE] Subtrain Scene Source"],"[B] Hex Background Photo":["[A] Microphone Scene Source"],"[B] Full video":[["[B] Rainwave Music Source"],["[SE] Rainwave Music Display Source"]],"[B] Rainwave Music Scene":["[B] Hex Background Photo Source"],"[SE] Footer":["[LOCAL] Sony Camera Source"],"[SE] Alerts":["[SE] Twitch footer source",[["[B] Rainwave Music Source"],["[SE] Rainwave Music Display Source"]],"[SE] YouTube footer source","[SE] footer backgound test source","[SE] footer background","[SE] footer top","[SE] footer bottom",["[SE] footer spectralizer"]],"[SE] Subtrain Scene":["[SE] Twitch alerts source","[SE] YouTube alerts source"],"[B] Twilio Call Scene":["[B] Twilio Call Scene Source"]},"options":{"mode":"tree","modes":["code","form","text","tree","view"]}},"evals":[],"jsHooks":[]}</script>
]

???
other quick Tips
* Audio devices in dedicated scenes
* Back up your settings regularly
* Always do test recordings whenever you change levels or scene layouts
* unload images and other media sources when not using their associated scenes
* If streaming to YouTube, take advantage of doing an unlisted stream so you can mimic what it will be like for the real thing
* Lock sources when finished placing them, so you don't accidently move them
* If doing both streaming and recording, highly recommended to use a graphics card to offload encoding (I use an NVidia card in my streaming computer)
---

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## Quick Tips with OBS
]

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* Take advantage of **nested** scenes!
* Unload any media sources not shown in current scene
* Leverage **browser sources** for dynamic web-based alerts and content
]

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.center[
<img src="img/my_obs_tutorial_with_border.png" width="100%"/>
[youtube.com/watch?v=fkvQ_lAGvFQ](https://www.youtube.com/watch?v=fkvQ_lAGvFQ)
]
]

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### More video tutorials on using OBS coming soon!
]

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.center[
## ViDeO Ninja
]

.left-column[
* Free web service for audio/video sharing
* Powered by web RTC and peer-to-peer technology
* Easily imported into OBS as **browser sources**
* The engine behind my Shiny Developer Series interviews!
]

.right-column[
.center[
<img src="img/shinydevseries.png" width="100%"/>
[shinydevseries.com/ep21](https://shinydevseries.com/ep21)
]

]

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### This could be from VDO Ninja!

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# Community Wins
]

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.center[
## A (Live) Shiny Reprex! 
]

.pull-left[
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<blockquote class="twitter-tweet"><p lang="en" dir="ltr">A short and random <a href="https://twitter.com/hashtag/rstats?src=hash&amp;ref_src=twsrc%5Etfw">#rstats</a> twitch stream: debugging a Shiny app problem found on <a href="https://twitter.com/R4DScommunity?ref_src=twsrc%5Etfw">@R4DScommunity</a> and narrating my thoughts - app by <a href="https://twitter.com/Shel_Kariuki?ref_src=twsrc%5Etfw">@Shel_Kariuki</a>! <br><br>Live now: <a href="https://t.co/byE0SlXj3e">https://t.co/byE0SlXj3e</a></p>&mdash; Tan (@_TanHo) <a href="https://twitter.com/_TanHo/status/1407834617944621056?ref_src=twsrc%5Etfw">June 23, 2021</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script> 
[twitter.com/_TanHo/status/1407834617944621056](https://twitter.com/_TanHo/status/1407834617944621056)
]
]

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.center[
<img src="img/tan_ho_shiny_stream.png" width="100%"/>

[twitch.tv/videos/1065545295](https://www.twitch.tv/videos/1065545295)
]
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## The <svg viewBox="0 0 581 512" style="height:1em;position:relative;display:inline-block;top:.1em;fill:blue;" xmlns="http://www.w3.org/2000/svg">  <path d="M581 226.6C581 119.1 450.9 32 290.5 32S0 119.1 0 226.6C0 322.4 103.3 402 239.4 418.1V480h99.1v-61.5c24.3-2.7 47.6-7.4 69.4-13.9L448 480h112l-67.4-113.7c54.5-35.4 88.4-84.9 88.4-139.7zm-466.8 14.5c0-73.5 98.9-133 220.8-133s211.9 40.7 211.9 133c0 50.1-26.5 85-70.3 106.4-2.4-1.6-4.7-2.9-6.4-3.7-10.2-5.2-27.8-10.5-27.8-10.5s86.6-6.4 86.6-92.7-90.6-87.9-90.6-87.9h-199V361c-74.1-21.5-125.2-67.1-125.2-119.9zm225.1 38.3v-55.6c57.8 0 87.8-6.8 87.8 27.3 0 36.5-38.2 28.3-87.8 28.3zm-.9 72.5H365c10.8 0 18.9 11.7 24 19.2-16.1 1.9-33 2.8-50.6 2.9v-22.1z"></path></svg> & Data Science StreameRs Emerge!

[www.jessemaegan.com/blog/2021-05-28-data-science-twitch-streamers-round-up](https://www.jessemaegan.com/blog/2021-05-28-data-science-twitch-streamers-round-up/)
]