26 Reply by kathampy (edited by kathampy 17-08-2019 00:53:10)

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Re: Re-visiting MPV with 4K

Chainik wrote:

at least much less than before

I'm still unable to play 10-bit 4K videos without severe stuttering on an i9-9900X @ 4.6 GHz and RTX 2080 Ti with Optical Flow. If I merely disable 10-bit output in SVP, MPV plays smoothly. MPC-BE plays 10-bit smoothly with SVP.

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Re: Re-visiting MPV with 4K

kathampy wrote:

MPC-BE plays 10-bit smoothly with SVP.


Are you sure of 10 bit output in MPC-BE? VLC and MPV can do it only...(?)

Re: Re-visiting MPV with 4K

"10-bit output in SVP" is for mpv and VLC, it does nothing for MPC-BE

29 Reply by kathampy (edited by kathampy 17-08-2019 09:34:45)

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Re: Re-visiting MPV with 4K

VLC is also not smooth with 10-bit when SVP is enabled.

30 Reply by snow8161 (edited by snow8161 17-08-2019 11:47:33)

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Re: Re-visiting MPV with 4K

I found that memory frequency also very important on 4k 10bit。
with 2133mhz svp index only 0.8 with a lot drop frame, not smooth.
with 2400 mhz smooth on nvdec-copy decoder.
with 3000 mhz smooth on d3d11-copy decoder

mpv player，6950x cpu，1660 ti gpu，16g ram

31 Reply by kathampy (edited by kathampy 17-08-2019 17:22:33)

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Re: Re-visiting MPV with 4K

I'm running quad-channel 4 x 8 GB 4000 MHz C17 so memory bandwidth is not a problem. The CPU usage stays the same as 8-bit at around 14%, but 10-bit stutters severely.

Here is my MPV configuration.

# this is required for SVP to "catch" the mpv
input-ipc-server=mpvpipe

# hardware video decoder
hwdec=d3d11va-copy
hwdec-codecs=all

vo=gpu
gpu-api=d3d11
gpu-context=d3d11

# high quality video output, require rather fast video card
profile=gpu-hq

# use ANGLE if you have problems with default d3d11 renderer
#gpu-context=angle
# OR the newest VULKAN API
#gpu-api=vulkan

# miscellaneous options

# fixes audio desync
hr-seek-framedrop=no

# this can't be used with SVP cause it also saves vf's states
save-position-on-quit=no

# "ReClock" replacement
#video-sync=display-resample
#video-sync-max-video-change=5

#log-file=mpv.log

ao=wasapi
audio-exclusive
audio-spdif=ac3,dts,dts-hd,eac3,truehd
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Re: Re-visiting MPV with 4K

Is that what your mpv.conf file look like? It's kinda strange compare to Blackfire's settings list...?

33 Reply by UHD

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Re: Re-visiting MPV with 4K

snow8161 wrote:

I found that memory frequency also very important on 4k 10bit。
with 2133mhz svp index only 0.8 with a lot drop frame, not smooth.
with 2400 mhz smooth on nvdec-copy decoder.
with 3000 mhz smooth on d3d11-copy decoder

mpv player，6950x cpu，1660 ti gpu，16g ram


On which monitor/TV do you watch 4K/10-bit HDR movies and do you use x2 (48Hz), 60Hz, x3 (72Hz) or maybe x5 (120Hz) interpolation?

34 Reply by UHD

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Re: Re-visiting MPV with 4K

kathampy wrote:

I'm running quad-channel 4 x 8 GB 4000 MHz C17 so memory bandwidth is not a problem. The CPU usage stays the same as 8-bit at around 14%, but 10-bit stutters severely.

On which monitor/TV do you watch 4K/10-bit HDR movies and do you use x2 (48Hz), 60Hz, x3 (72Hz) or maybe x5 (120Hz) interpolation?