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(3 replies, posted in Using SVP)

With Optical Flow it's possible to watch 4K HDR movies at 144FPS with a four core CPU. So yeah, it's great!

Alright, thanks.

I'm just happy that 4K HDR can be watched tone mapped at 144FPS at all. It takes 300W of power to do, though. big_smile

Maybe one day we can get rid of ffdshow and replace it with something modern that has 10bit and HDR support. Mpv is not a very nice user experience due to lack of proper GUI.

I misread the part about VapourSynth. It's still external to mpv so they weren't too keen on diving in further.

But is this particular problem really about efficiency and why does it manifest using only hardware decoding? With software decoding mpv uses only 10% more CPU than MPC-HC while also doing tone mapping and it doesn't drop frames either. It's only when activating hardware decoding the drops start to happen on mpv.

The MPC-HC + madVR combination with SVP can handle 60Mbps 4K video interpolated to glorious 144FPS no problem at all but sadly can't do tone mapping so I started using mpv instead. Mpv can top this by also doing tone mapping, but only with hwdec=no.

With any form of hardware decoding enabled (for example hwdec=nvdec-copy) mpv starts dropping frames by the dozen. What seems to be the problem?

I also asked about this on the mpv IRC channel but they couldn't help due to VapourSynth and SVP not being open source. A quote: "the shitty vs bridge is prbably what's killing the perf"

Hardware:
i7-7700K (4c/8t) @ 5,2GHz
RTX 2080 Ti
DDR4-3600