Talking head
MountainWest JavaScript 2014

This presentation, by Glen Maddern, is licensed under a Creative Commons Attribution ShareAlike 3.0
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This talk is about pursuing a dumb idea to its extremes. In this case, the dumb idea was to scrape GIFs off Tumblr, play them back fullscreen, and beat-match them to music from Rdio. An instant GIF party, if you will. It’s been my hobby project for over a year, and covers a huge range of web technologies. We’ll explore some of the things I’ve learned along the way. Such as: How inflexible, inefficient the GIF format is, but how ubiquitous and beautiful GIFs themselves are Writing a binary GIF parser in JS vs using Emscripten to compile existing C code Different ways of detecting a GIFs pacing, rhythm and mood Repurposing CloudFront to circumvent same-origin policy problems and proxy someone else’s CDN Synchronising audio, metadata, GIFs and resources from 3 external APIs within a requestAnimationFrame loop The incredible depth of audio analysis information available from the EchoNest API Using Heroku and a few lines of NodeJS to refactor an external API The potential of using a computer’s microphone to do ambient beat detection of music playing elsewhere in the room I hope you learn something along the way too.

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