Bug Stats.lua or something is wrong?

[YukiNeeSan]

Created lua script for automation filter depending on audio source.
auto_up4x.lua.txt

[after playing 1 file or multiple files looks like this]

reproduction:

1. Lua Script = duplication
2. Filter write in mpv.conv = no duplication
3. Put this --reset-on-next-file=all = no duplication

[verygoodlee]

it's a bug in your script, unrelated to stats.lua

this won't avoid duplicates as you expected

local existing = mp.get_property("af") or ""
if existing:match(up) then return end         -- avoid dupes

[YukiNeeSan]

it's a bug in your script, unrelated to stats.lua
this won't avoid duplicates as you expected

Ok thanks,

-- SoX_resample_auto.lua
local mp = require "mp"
local msg = require "mp.msg"

local function try_insert_up4x(attempt)
    local sr = mp.get_property_number("audio-params/samplerate")
    if not sr then
        if attempt < 10 then
            mp.add_timeout(0.5, function() try_insert_up4x(attempt + 1) end) -- delay 0.5 sec
        end
        return
    end

    local target_sr
    if sr == 48000 then
        target_sr = 192000
    elseif sr == 44100 then
        target_sr = 176400
    else
        return
    end

    local chain = (
        "aresample=resampler=soxr:cheby=0:cutoff=0.95:" ..
        "out_sample_rate=%d:out_sample_fmt=dblp:precision=28," ..
        "lowshelf=frequency=60:gain=2.5:transform=zdf:width=0.707:width_type=q," ..
        "tiltshelf=frequency=1000:gain=1.5:transform=zdf:width=0.707:width_type=q," ..
        "highshelf=frequency=8000:gain=-3.0:transform=zdf:width=0.707:width_type=q," ..
        "dynaudnorm=coupling=0:framelen=500:gausssize=31:peak=0.95," ..
        "alimiter=attack=20:release=200:limit=0.93"
    ):format(target_sr)

    mp.commandv("af", "set", chain)
    mp.osd_message(("SoXr + AV-Filter chain %d→%d Hz applied"):format(sr, target_sr), 7) -- appear 7 sec
    msg.info(("auto_up4x applied: %d → %d Hz"):format(sr, target_sr))
end

mp.register_event("file-loaded", function()
    try_insert_up4x(0)
end)
-- lowpass = Cut frequency above a certain point e.g 10000 (10.000Hz) above frequency are disappeared become silence
-- lowshelf = Boosts or cuts frequencies below a certain point "+gain more bass warmth" "-gain softer bass/midbass" suggestion 20Hz–150Hz
-- tiltshelf = Rotates the tonal balance around a pivot frequency "+gain boosts lows and cuts highs" "-gain boosts highs and cuts lows more bright" suggestion 800Hz–1400Hz
-- highshelf = boosts or cuts frequencies above a certain point "+gain more treble bright" "-gain softer high treble and sibilance" suggestion 8000Hz–14000Hz
-- dynaudnorm = dynamic normalization
-- alimiter = prevents an input signal from rising over a desired threshold