YAYaggo·Mar 14, 2018
> Is it actually possible to use this feature in practice? Are proprietary drivers an issue?
I've streamed 3D video over wifibroadcast¹ to OSVR headset, no fundamental issues. The exact lag depends on resolution, fps, etc settings. It would be superb to cut the delay to sub-50 ms range, but that's probably not going to happen as it would require major rewrite of the H264 stack, as currently there are always two full frames in the pipeline, e.g. in 30 fps it makes 1000/30*2 -> ~70 ms delay². (Note that I'm not the author of the befinitiv website.)
The foundation has released open-source driver stack³ (raspivid etc), but AFAIK they have rather limited resources for software development (single ex-broadcom developer?) and limited access to proprietary features (documentation?) of the Broadcom chipset. Many things work but I think the capabi
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lities of the SOC aren't yet fully utilized.
> Also is it possible to browse the web and e.g. watch videos on youtube with adequate performance on an RPi? (different topic)
No personal experience, but RPi 3 should be okayish for lightweight desktop use (YMMV) with 1 GB of RAM being main limitation for multitasking.
[1] https://befinitiv.wordpress.com/wifibroadcast-analog-like-tr...
[2] https://befinitiv.wordpress.com/2015/09/10/latency-analysis-...
[3] https://github.com/raspberrypi/userland