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Cake day: August 4th, 2023

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  • A lot of people are saying this isn’t possible, theyre wrong. It’s called “Server Side Ad Insertion (SSAI)” and tldr it places the ads directly in the video itself. One of the popular streaming services uses SSAI, another uses SGAI. Theyre both something the CDN must implement alongside the client.

    The technical explanation: SSAI, at least with HLS, places the ad segments within the media playlist. This means there is no additional and easy to block call to the ad server to ask for ads (that’s Server Guided Ad Insertion, SGAI). SGAI places markers where ads need to go in the media playlist, and the client asks the server for some ads to place there.

    There’s also CSAI which is fully client side (the client decides where to place ads and how many) but I’d like to doubt youtube uses this. Doesn’t seem very smart.

    Even if, lets say, youtube baked the ads into the content segments, it wouldn’t solve anything. There will still be markers and metadata to find where they are (the client needs these to notify ad partners you watched the ad, and to display the yellow “ad” markers, and to display a timer) which can be used to skip them client-side with an extension.

    Overall YouTube probably won’t win because there’s always something to do to bypass ads. Some methods are easier to bypass than others, but they’re all enforced client-side in the end. The only thing they could possibly do to have even a fraction of a chance would be to block you from getting the next content segments until the ad duration has passed in real-time. That’s a last resort, however, because that will likely hurt QoS and client stability. There’s a reason it isn’t already done. Don’t forget, also, the developers who work on this stuff don’t like ads either. Nobody is going out of their way to prevent ad blocking beyond what the execs want, and the execs don’t know what they want.

    Do note that although I specify HLS there is likely little to no difference with other streaming tech, I just want to be clear about my experience.






  • As someone who was born with unilateral moderate->severe hearing loss, I can read lips. The experience is likely unique across the hearing loss spectrum / time of onset, and some people may be able to learn that skill themselves, idk. I’m sure 100% deaf people experience it in their own interesting way.

    To me it’s not anything I conciously do, and it’s not something that’s really that visible to me. The fact I can still hear, but not as well as people with normal hearing affects how it works. The way I’d explain it for me is kinda like this:

    Sometimes I can’t hear enough to tell what is being said, one way my brain naturally deals with this is by reading the speakers lips and using that to help filter and understand what its hearing. I can kinda apply it as a skill, like with muted videos and people I can’t hear because of distance, but it doesn’t work that well and isn’t worthy of trust.

    So for me it’s more of a sense, not something I do or think about. However, its basically the least effort way to understand speech that isn’t clear enough. This is in contrast to another way I/my brain goes about it, which is trying really hard to figure out what it just heard.

    To answer your last question, yes it is likely a mistake. Theres a youtube channel about that whole concept, called bad lip reading or something. They dub over video with audio that matches the lips well enough.

    To put my experience into perspective, which might work for at least a few people: closed captions subtitles. I mean… I’ve never asked anyone else but yall arent just reading them, right? To me they just clarify the speech subconsciously (for the most part), rather than me reading them off the screen when I need them. Captions are weird… Who knows if this is accurate to my experience or similar to others.



  • For the last year (at least for me and people I know) Google Maps has been suggesting batshit insane alternate routes and then conninuously suggesting you turn around and take the already longer route.

    I went on a road trip, it was not uncommon to see it suggest an alternate route with +2 or more hours. Then it would suggest you turn around and follow said route for 30 minutes (with the delay increasing as you drive further away from the alternate).

    There’s something weird with gmaps but it still works. I wonder if its some kind of test to see if people will just blindly follow alternates for some goal of theirs.