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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. Hector Martin‏ @marcan42 17 Jun 2017
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      I'm amazed that after all these years of YouTube big shows still can't figure out proper video deinterlacing. Come on, @TheDailyShow.

      2 replies 3 retweets 8 likes
    2.  👼 Ąż 杏‏ @angealbertini 17 Jun 2017
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      Replying to @marcan42 @TheDailyShow

      examples ?

      1 reply 0 retweets 0 likes
    3. Hector Martin‏ @marcan42 17 Jun 2017
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      Replying to @angealbertini @TheDailyShow

      Any of their episodes on https://www.youtube.com/channel/UCwWhs_6x42TyRM4Wstoq8HA/videos … . Watch in 1080p full screen. There's a weird "bob"/shimmer effect, though strangely slow.

      1 reply 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 17 Jun 2017
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      Replying to @marcan42 @angealbertini @TheDailyShow

      It's like they're doing some kind of poorly implemented 1080i->1080p bob deinterlacing, but with some weird temporal effect.

      1 reply 0 retweets 0 likes
    5. Hector Martin‏ @marcan42 17 Jun 2017
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      Replying to @marcan42 @angealbertini @TheDailyShow

      I've seen worse though, e.g. flat-out interlaced/field-merged video on YT (forget who it was, maybe @LastWeekTonight at some point?).

      1 reply 0 retweets 0 likes
    6. Hector Martin‏ @marcan42 17 Jun 2017
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      Replying to @marcan42 @angealbertini and

      Actually, for @TheDailyShow it's only the past few weeks. Before that they were doing only one consistent field (540p), no bob effect.

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 17 Jun 2017
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      Replying to @marcan42 @angealbertini and

      Doing some analysis, before it was 540p 30fps, now it's 540p 24fps with a duplicated frame to make 30fps. Field pattern: 1A 2A 3B 3B 4B

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 17 Jun 2017
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      Replying to @marcan42 @angealbertini and

      So there's some really screwed up roundtripping through 24fps involved somehow. Someone has no idea what they're doing.

      5:12 AM - 17 Jun 2017
      • 1 Like
      • end my suffering
      1 reply 0 retweets 1 like
        1.  👼 Ąż 杏‏ @angealbertini 17 Jun 2017
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          Replying to @marcan42 @TheDailyShow @LastWeekTonight

          wooohoo, more FPS \o/ ;)

          0 replies 0 retweets 0 likes
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