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by sly010 1558 days ago
Actually the "raw" data coming from most cameras are often already compressed somehow, otherwise the camera would not be able to write it to storage (or send it over USB) fast enough.

In fact since decoding also often happens in hardware, the raw size may never materialize anywhere in the pipeline, other than the framebuffer of the video card. Even HDMI has compression now [0]

The author probably choose a screenshot as a benchmark, because otherwise it's hard to get your hands on anything compressible but not already compressed.

1 comments

10 bit video 444 with 8294400 or 8847360 samples per picture for 4k (tv vs movie) tops out below 270mbit per frame, or at 60hz 16gbit, so you can fit half a dozen signals down a 100G transceiver, or two down a 40G.

Throw in YUV compression and you can shift 120hz 8k with relatively little problem.