Could a high-end PC decode it via software? Maybe. If your new media streamer, cable box, or BD player has it, then you'll be all set (presuming you also have HDMI 2.0 so you can get 2160p/60 and not just 2160p/30). Just because a computer says one level of compression is better than another doesn't mean it looks better than another.īecause H.265 is so much more processor intensive, don't expect a simple firmware upgrade to get your gear to decode it. All of these things would have been done with AVC or even earlier, but it required more processing power than was economically feasible at the time.ĭuring the development phase, the compression algorithm is tested objectively, for its raw number efficiency, but also subjectively, by video professionals comparing different compression methods and amounts in a "blind" test, where they don't know which method is which. Then other things were improved, like motion compensation, spatial prediction, and so on. As you can see on the right, there's a lot more flexibility, not to mention larger sizes, for the HEVC/H.265 encoder to work with. On the left is macroblocking as done by AVC/H.264.
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