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by londons_explore
1683 days ago
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I don't know about zoom specifically, but most video conferencing programs counterintuitively don't use hardware video encoders/decoders. They use the GPU for visual effects (background blur etc), but then do regular CPU video encoding. That's why they gobble so much CPU! I think that helps with system compatibility. Hardware video encoders are full of bugs and corner cases, and it's very easy for someone to end up seeing a garbled image when the bitstream was truncated or bad in some way. |
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