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wcrichton's profile
Will Crichton
Will Crichton
Will Crichton
@wcrichton

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Will Crichton

@wcrichton

Articulating the ineffable. Programming language theory 🤝 cognitive psychology. PhD @Stanford

he/him
willcrichton.net
Joined September 2011

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    1. Omar Rizwan‏ @rsnous 25 Mar 2019

      open-source projects as repositories of domain knowledgepic.twitter.com/V76EST2Iry

      2 replies 11 retweets 66 likes
      Show this thread
    2. Omar Rizwan‏ @rsnous 25 Mar 2019

      Omar Rizwan Retweeted Omar Rizwan

      thinking of this old jokehttps://twitter.com/rsnous/status/855882871038279680 …

      Omar Rizwan added,

      Omar Rizwan @rsnous
      Linux: the Wikipedia of device drivers
      1 reply 0 retweets 19 likes
      Show this thread
    3. Omar Rizwan‏ @rsnous 25 Mar 2019

      also thinking of game emulation -- I mean, MAME alone…

      1 reply 0 retweets 7 likes
      Show this thread
    4. Omar Rizwan‏ @rsnous 4 Apr 2019

      ffmpeg and ImageMagick embody deep knowledge about how to interpret media files found in the wildpic.twitter.com/bagV1oa0Mb

      1 reply 0 retweets 23 likes
      Show this thread
    5. Will Crichton‏ @wcrichton 4 Apr 2019
      Replying to @rsnous

      When I interned at Snapchat, they hired one of the ffmpeg devs just to solve all their video problems. Insane how much complexity in video codecs and containers. Time bases, variable frame rates, fractional frame rates (29.97???), and that's when your video _isn't_ corrupted.

      1 reply 1 retweet 11 likes
    6. Will Crichton‏ @wcrichton 4 Apr 2019
      Replying to @wcrichton @rsnous

      Sucks though if your use case differs from theirs, e.g. we wanted to do analytics that required non-sequential access to frames. Asked the dev, his response: "oh, ffmpeg wasn't built for that, don't use it." Great, so now I need to reimplement an mp4/h264 decoder by hand?

      1 reply 0 retweets 1 like
      Will Crichton‏ @wcrichton 4 Apr 2019
      Replying to @wcrichton @rsnous

      Very different in that sense from SQLite. It's way easier to transition from SQLite to Postgres to BigQuery since they have a consistent interface, i.e. SQL. Even if "ffmpeg for analytics" existed, there is no standardized interface for video.

      9:35 PM - 4 Apr 2019
      • 3 Likes
      • Srini Kadamati Carson Kelly Clarkson (Since You Been Gone) Omar Rizwan
      0 replies 0 retweets 3 likes

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