large text on STATS page 5 causes lag and frame drops

mpv Information

mpv v0.41.0-687-gdb7385799 Copyright © 2000-2026 mpv/MPlayer/mplayer2 projects
 built on May 21 2026 20:15:46
libplacebo version: v7.364.0 (v7.360.0-55-g464d6ea-dirty)
FFmpeg version: N-124569-g99e1ecca3
FFmpeg library versions:
   libavcodec      62.34.100
   libavdevice     62.4.100
   libavfilter     11.17.100
   libavformat     62.18.100
   libavutil       60.31.100
   libswresample   6.4.100
   libswscale      9.7.100

Other Information

- Windows version: Win10 22H2
- GPU model, driver and version:
- Source of mpv: https://github.com/zhongfly/mpv-winbuild
- Latest known working version:
- Issue started after the following happened:

Reproduction Steps

ytdl hook may use the "memory://" protocol to generate subtitles with extremely long filenames, these long filenames will be rendered on the STAT page 5 without any truncation.

https://github.com/mpv-player/mpv/blob/db73857997b7787e529b12dadbfd187806d1b7ed/player/lua/ytdl_hook.lua#L738-L739

for simply reproduce, create a lua script to generate a “memory://” protocol subtitle about 1MiB size.

mp.register_event('file-loaded', function()
    local srt_lines = {}
    for i = 1, 1024 do
        table.insert(srt_lines, '' .. i)
        table.insert(srt_lines, mp.format_time(i - 1, '%H:%M:%S,%T') .. ' --> ' .. mp.format_time(i - 0.001, '%H:%M:%S,%T'))
        table.insert(srt_lines, ('A'):rep(1024))
        table.insert(srt_lines, '')
    end
    mp.commandv('sub-add', 'memory://'..table.concat(srt_lines, '\n'), 'select')
end)

mpv any.mkv --no-config --script=test.lua --log-file=log.txt
show STATS page 5 and try scrolling up and down.

https://github.com/user-attachments/assets/92c012f1-b31d-4011-9f4b-c4a35f41a30c

Expected Behavior

no lagging

A feasible solution is to truncate the filenames, just as the selectable items are truncated in console.lua
https://github.com/mpv-player/mpv/blob/db73857997b7787e529b12dadbfd187806d1b7ed/player/lua/console.lua#L1765-L1779

Actual Behavior

lagging

Log File

log.txt

Sample Files

No response

I carefully read all instruction and confirm that I did the following:

• I tested and confirmed that the issue exists with the latest release version or newer.
• I provided all required information including system and mpv version.
• I produced the log file with the exact same set of files, parameters, and conditions used in "Reproduction Steps", with the addition of --log-file=output.txt.
• I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
• I attached the full, untruncated log file.
• I attached the backtrace in the case of a crash.

Start by running the provided command with test.lua, then inspect the STATS page rendering and compare its handling of long filenames with the truncation logic in player/lua/console.lua (the affected subtitle path is referenced in player/lua/ytdl_hook.lua). Done means reproducing the frame drops no longer causes lag when scrolling STATS page 5 with a very large memory:// subtitle filename.