Summary
- Netflix created "AV1 Film Grain Synthesis" to enhance streaming quality without increasing file size.
- This technology analyzes film grain patterns and adds them to the video stream on the user’s device.
- Users will experience lower data usage, smoother streaming, reduced errors, and faster start times with this new technology.
Sometimes, it’s the imperfections that make something better than it would be otherwise. For movies, that's often film grain at work, and Netflix just figured out how to make it even better for you.
Why Snow, Rain, and Confetti Destroy Streaming Video Quality
If you've ever watched a movie on Netflix, YouTube, or some other streaming service, you might notice that any time there's a rainy scene, the video quality completely falls apart. Even if you're streaming over the best internet connection, the video will look like crap. This happens because all video streams are compressed, and particles like rain, snow, and confetti completely destroy compressed streams.
But Netflix found a way to have the best of both worlds. They've rolled out something called “AV1 Film Grain Synthesis” (FGS). It's a clever trick where they don't actually compress the grain itself. Instead, they analyze it, figure out its unique pattern and how intense it should be in different parts of the video, and then send that information alongside a much cleaner, grain-free video stream.
When that stream hits your device, the film grain is recreated right there on your screen, perfectly synthesized to match the original. In short, rather than sending a big file with all the noisy grain intact, a clean, smaller file is sent, and the grain effect is added after the fact. Pretty slick.
In their A/B testing of this technology, Netflix saw some pretty nice benefits. You get lower initial and average bitrates, which translates to less data usage and a smoother experience, especially if your internet connection isn't always the best. Plus, you'll likely notice fewer playback errors, less buffering, and faster start times when you hit play. Essentially, your shows and movies will look better and start playing quicker, often at higher resolutions than before. It’s a subtle change, but one that makes a big difference to your viewing pleasure.
Source: Netflix Tech
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