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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Lexi‏ @Lexil 24 Jan 2019
      • Report Tweet
      • Report NetzDG Violation

      Lexi Retweeted Hector Martin

      "I'm angry that an educational foundation has the gall to try to make money to fund itself! I should attempt to destroy one of their primary revenue streams!"https://twitter.com/marcan42/status/1088474607718297600 …

      Lexi added,

      Hector Martin @marcan42
      Seriously, now I want to buy a camera, smash the chip, and crack their firmware so it doesn't have the check. As far as I know there is no secureboot involved, so it should be trivial. This Is Just Inexplicably Dumb. https://twitter.com/marcan42/status/1088472549715918848 …
      Show this thread
      1 reply 0 retweets 4 likes
    2. Ben Cox‏ @Benjojo12 24 Jan 2019
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      Replying to @Lexil

      Bad take, They claim a open platform while literally slamming a DRM on a video interface so you can buy only their sub-par cameras. Remember that the educational foundation != the company that sells you Pi's. That company made £9M profit in 2017 from what is seen as a "charity"

      2 replies 0 retweets 5 likes
    3. Lexi‏ @Lexil 24 Jan 2019
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      Replying to @Benjojo12

      Lexi Retweeted Eben Upton

      That's actually the inverse of the case. You can use any camera you like _except_ their "sub-par" one:https://twitter.com/EbenUpton/status/1088440503622909952?s=19 …

      Lexi added,

      Eben Upton @EbenUpton
      Replying to @embedded_iot @abxlabs and 6 others
      You are confused. You can plug any CSI camera into the Raspberry Pi. There's even a kernel driver for the CSI receiver, which we paid for (https://patchwork.kernel.org/patch/9951525/ ). What you can't do is clone the official v2 camera module and use the default ISP tuning, which we also paid for.
      1 reply 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 24 Jan 2019
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      Replying to @Lexil @Benjojo12

      You can use any camera you like and do all the processing and support in software. Their camera is the only one that gets to use the VideoCore and ISP for accelerated processing. And since their blob is closed source, nobody can add support for theirs.

      1 reply 0 retweets 0 likes
    5. Hector Martin‏ @marcan42 24 Jan 2019
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      Replying to @marcan42 @Lexil @Benjojo12

      So yeah, screw their "revenue stream", people should be free to take that Sony sensor and put it in other form factors and get full functionality without paying a ransom fee backed by DRM in a closed source blob.

      1 reply 0 retweets 2 likes
    6. Gordon Hollingworth‏ @gsholling 25 Jan 2019
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      Replying to @marcan42 @Lexil @Benjojo12

      Why can't 'people' just use the open source driver? https://patchwork.kernel.org/patch/9951525/ 

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 25 Jan 2019
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      Replying to @gsholling @Lexil @Benjojo12

      Because that driver is only a tiny piece of what you need to actually get usable photos out of a camera.

      1 reply 0 retweets 0 likes
    8. Gordon Hollingworth‏ @gsholling 25 Jan 2019
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      Replying to @marcan42 @Lexil @Benjojo12

      All the software is available in open source... OpenCV will do Bayer conversion, image demonising etc

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 25 Jan 2019
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      Replying to @gsholling @Lexil @Benjojo12

      It's more than just demosaicing. You need closed loop control with the sensor, someone needs to write a bunch of new code. And besides, doing it this way eats CPU time while the VideoCore blob implementation is hardware accelerated.

      3:57 AM - 25 Jan 2019
      0 replies 0 retweets 0 likes

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