Please recommend parameters for software decode/play_back

[hanguofu]

Important Information

Provide following Information:

• mpv version 0.38.0
• Linux Distribution and Version : Ubuntu 22.04 LTS
• Source of the mpv binary : from third party : https://ppa.launchpadcontent.net/ubuntuhandbook1/mpv/ubuntu/pool/main/m/mpv/mpv_0.38.0-0ubuntu1~jammy_arm64.deb
• If known which version of mpv introduced the problem : not sure
• Window Manager and version : Wayland Gnome 42.9
• GPU model, driver and version : Mali-G31 ( Panfrost )
• Possible screenshot or video of visual glitches : not avail.

Reproduction steps

play the video with : mpv --log-file=./loga.txt ./test.mkv

Expected behavior

The video is played smoothly.

Actual behavior

Occasional black screen. Sudden mute in audio sometimes.

I tried the latest mpv at my embeded device ( similiar to s905x with 2G ddr3 , but its GPU is Mali-G31 instead of mali450 )
and find out its effect is far way from satisfaction .
Even though there is still quite a lot of hardware margin during mpv running :
%Cpu(s): 11.9 us, 2.4 sy, 0.0 ni, 85.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 1939.3 total, 644.0 free, 547.2 used, 748.1 buff/cache
MiB Swap: 969.6 total, 969.6 free, 0.0 used. 1098.0 avail Mem

My setting ( /etc/mpv/mpv.conf ) :
hwdec=no
vo=gpu-next
gpu-context=wayland
profile=sw-fast
scale=bilinear
osc=no
load-scripts=no
input-vo-keyboard=no
fs=yes

Log file

https://pastebin.com/8HqLYEnP

Sample files

https://raw.githubusercontent.com/trump-7575/opencv/master/test
Please add extension "mkv" to the test clip.