Re:Ask HN: Is there still a place for native desktop apps?
by grishka on Monday May 18, 2020 @09:36AM
(#23222103)
> videoconferencing would more commonly use 320x240 or 352x288 which has 1/4 the pixels, and H261 or H263 instead as the codec.
Modern videoconferencing solutions (WebRTC) usually use 1280x720 and either H264 or VP8. Some apparently use HEVC. Also most modern processors and SoCs come with hardware-accelerated codecs built in, so most of the work related to compression isn't even done by the CPU itself.
> I'm not familiar with Zoom as I don't use it, but it's very likely you're not actually receiving and decoding 16 separate video streams
Modern videoconferencing solutions (WebRTC) usually use 1280x720 and either H264 or VP8. Some apparently use HEVC. Also most modern processors and SoCs come with hardware-accelerated codecs built in, so most of the work related to compression isn't even done by the CPU itself.
> I'm not familiar with Zoom as I don't use it, but it's very likely you're not actually receiving and decoding 16 separate video streams
Yes you are receiving separate streams.