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Are modern digital video formats good at compressing chunks of pixels far apart in the video screen? It's not like zlib where identifying duplicated chunks is p

• Tuna-Fish 4y ago
  The formats absolutely have the capability, but it's an another question if the encoder is capable of noticing the duplication. (Modern video formats are not deterministic in that the same source always encodes to the same output for the same format. They are more like programming languages that they provide as set of tools you can use to compress various different kinds of redundancy out, but it's the job of the encoder to find that redundancy. For example, one of the tools typically available is to provide a source image to an off-screen buffer, and then when rendering the screen, occasionally provide offset/length pairs into that buffer instead of pixels. This could be used for efficiently encoding the duplicated noise.)