Zach_N85
28th February 2017, 23:54
My PotPlayer is currently configured with LAV Video Decoder as such:
http://image.prntscr.com/image/b4c45ee6b3bb43b5b915c1ce7c3a55ae.png
I'm also using ffdshow raw video filter, I'm wondering if there's a point to use ffdshow raw video filter if I'm using Native DXVA? Or perhaps I should disable it to reduce unnecessary processing?
Someone on the SVP forums explained it to me like this:
DXVA Native: GPU decode frame -> GPU show frame
DXVA Copy Back: GPU decode frame -> pass to RAM -> (CPU filtering) -> pass back to GPU -> GPU show frame
If you not using ffdShow (CPU filtering) then you don't need two passes to RAM and from RAM.
Quality must be identical. CPU usage higher with DXVA Copy Back due to double copying to/from RAM.
Thanks
http://image.prntscr.com/image/b4c45ee6b3bb43b5b915c1ce7c3a55ae.png
I'm also using ffdshow raw video filter, I'm wondering if there's a point to use ffdshow raw video filter if I'm using Native DXVA? Or perhaps I should disable it to reduce unnecessary processing?
Someone on the SVP forums explained it to me like this:
DXVA Native: GPU decode frame -> GPU show frame
DXVA Copy Back: GPU decode frame -> pass to RAM -> (CPU filtering) -> pass back to GPU -> GPU show frame
If you not using ffdShow (CPU filtering) then you don't need two passes to RAM and from RAM.
Quality must be identical. CPU usage higher with DXVA Copy Back due to double copying to/from RAM.
Thanks