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It's possible that they are using different video codecs. On Safari H264 and on Chrome VP9 but with only H264 being hardware accelerated. This is just a total
by anon1385 11y ago
It's possible that they are using different video codecs. On Safari H264 and on Chrome VP9 but with only H264 being hardware accelerated.
This is just a total guess of course (and I'd have thought it would depend on what the other end of the chat supports as well), but I bring it up since people have recently been complaining about YouTube in Chrome using far more CPU than YouTube in Safari, because YouTube uses VP9 in Chrome. e.g. https://news.ycombinator.com/item?id=9330357 https://news.ycombinator.com/item?id=9330357
On the other hand it's possible that it's just the general suckiness of Chrome video performance, even when using H264 it seems to use over twice as much power as Safari: https://news.ycombinator.com/item?id=9806976 https://news.ycombinator.com/item?id=9806976
- TD-Linux 11y agoWell, Hangouts on Safari is a Google plugin. I believe it generally uses VP8. Hardware doesn't matter, as what's needed is an encoder - and hardware encoders usually aren't good enough to use for real time chat. Encoding video for any format well is going to be costly, hence the original article mentions complains about Skype as well.