I get this when i try to run mpv in console:

D:/Programs/SMPlayer/mpv/mpv/mpv.conf:12: unparsable extra characters: 'add video-aspect +0.04'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:13: unparsable extra characters: 'add video-aspect -0.04'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:14: unparsable extra characters: 'add video-zoom .02'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:15: unparsable extra characters: 'add video-zoom -.02'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:16: unparsable extra characters: 'set video-zoom 0 ; set video-aspect 0'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:20: unparsable extra characters: '+KP8 add video-pan-y -.02'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:21: unparsable extra characters: '+KP6 add video-pan-x .02'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:22: unparsable extra characters: '+KP2 add video-pan-y .02'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:23: unparsable extra characters: '+KP4 add video-pan-x -.02'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:24: unparsable extra characters: '+KP5 set video-pan-x 0 ; set video-pan-y 0'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:44: unparsable extra characters: 'volume=volume=-3.2dB'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:47: unparsable extra characters: 'lowshelf=gain=1.5:f=105:q=0.71'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:50: unparsable extra characters: 'equalizer=gain=-3.5:f=200:q=1.41'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:53: unparsable extra characters: 'highshelf=gain=5.5:f=2300:q=0.71'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:56: unparsable extra characters: 'equalizer=gain=-1.0:f=2400:q=3.0'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:59: unparsable extra characters: 'equalizer=gain=-2.4dB:f=3800:q=6.0'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf:62: unparsable extra characters: 'equalizer=gain=-8.0:f=5150:q=5.5'
D:/Programs/SMPlayer/mpv/mpv/mpv.conf: too many errors, stopping.
[file] Cannot open file 'audio-device=help': No such file or directory
Failed to open audio-device=help.

Edit: I don't know why but specifying the filename of the script-opts file made it work even though the basenames are the same.

Change:

From:

-- Define a table with default options
local o = {
    memory_usage_percentage = 80,
    reserved_memory_gb = 6
}

-- Read the options from the script-opts file
options.read_options(o)

-- Print the read options for debugging purposes
msg.info("memory_usage_percentage: " .. o.memory_usage_percentage)
msg.info("reserved_memory_gb: " .. o.reserved_memory_gb)

To:

-- Define a table with default options
local opts = {
    memory_usage_percentage = 80,
    reserved_memory_gb = 6
}

-- Read the options from the script-opts file
(require 'mp.options').read_options(opts, "demuxer-max-bytes")

-- Print the read options for debugging purposes
msg.info("memory_usage_percentage: " .. opts.memory_usage_percentage)
msg.info("reserved_memory_gb: " .. opts.reserved_memory_gb)

Original post: I am making a lua script to adjust buffer size dynamically based on available ram. The script is working with the hardcoded values: memory_usage_percentage = 80, reserved_memory_gb = 6 but it is not reading the new values from my script-opts file. Do you see why?

cat /home/cmysmiaczxotoy/.config/mpv/script-opts/demuxer-max-bytes.conf

memory_usage_percentage=70
reserved_memory_gb=8

cat /home/cmysmiaczxotoy/.config/mpv/scripts/demuxer-max-bytes.lua (Now edited with fix)

-- Require the necessary modules
local mp = require 'mp'
local msg = require 'mp.msg'

-- Define a table with default options
local opts = {
    memory_usage_percentage = 80,
    reserved_memory_gb = 6
}

-- Read the options from the script-opts file
(require 'mp.options').read_options(opts, "demuxer-max-bytes")

-- Print the read options for debugging purposes
msg.info("memory_usage_percentage: " .. opts.memory_usage_percentage)
msg.info("reserved_memory_gb: " .. opts.reserved_memory_gb)

local function is_windows()
    return package.config:sub(1,1) == '\\'
end

local function set_memory_properties(free_mem_kib, total_mem_kib)
    -- Calculate the percentage of the total memory in KiB
    local allowed_mem_kib = total_mem_kib * (opts.memory_usage_percentage / 100)
    -- Convert reserved memory from GB to KiB
    local reserved_mem_kib = opts.reserved_memory_gb * 1024 * 1024
    -- Calculate the amount of memory to use, leaving the reserved memory free
    local mem_to_use_kib = allowed_mem_kib - (total_mem_kib - free_mem_kib - reserved_mem_kib)

    -- Apply various checks and calculations to mem_to_use_kib
    if mem_to_use_kib > free_mem_kib - reserved_mem_kib then
        mem_to_use_kib = free_mem_kib - reserved_mem_kib
    end
    if mem_to_use_kib < 0 then
        mem_to_use_kib = free_mem_kib - reserved_mem_kib
    end
    if mem_to_use_kib < 0 then
        mem_to_use_kib = 1024
    end

    -- Convert to bytes and round to nearest integer
    local mem_to_use_bytes = math.floor(mem_to_use_kib * 1024)

    -- Set demuxer-max-bytes to the calculated value
    mp.set_property("demuxer-max-bytes", tostring(mem_to_use_bytes))
    mp.msg.info("Set demuxer-max-bytes to: " .. mem_to_use_bytes .. " bytes")
    
    -- Set cache-related properties
    mp.set_property("cache", "yes")
    mp.set_property("cache-pause", "yes")
    mp.set_property("force-seekable", "yes")
    mp.set_property("demuxer-readahead-secs", "30")
end

-- Function to gather memory info on Windows
local function get_memory_info_windows()
    local ps_script = 'Get-CimInstance Win32_OperatingSystem | ' ..
                      'ForEach-Object { $_.FreePhysicalMemory, $_.TotalVisibleMemorySize }'
    local handle = io.popen('powershell -NoProfile -Command "' .. ps_script .. '"', 'r')
    local free_mem_kib = handle:read("*l")
    local total_mem_kib = handle:read("*l")
    handle:close()

    return tonumber(free_mem_kib), tonumber(total_mem_kib)
end

-- Function to gather memory info on Linux
local function get_memory_info_linux()
    local total_mem_kib = 0
    local free_mem_kib = 0
    local meminfo = io.open("/proc/meminfo", "r")
    if meminfo then
        for line in meminfo:lines() do
            local key, value = line:match("(%w+):%s+(%d+)")
            if key == "MemAvailable" then
                free_mem_kib = tonumber(value)
            elseif key == "MemTotal" then
                total_mem_kib = tonumber(value)
            end
        end
        meminfo:close()
    end

    return free_mem_kib, total_mem_kib
end

-- This hook runs at the start of file loading
mp.register_event("start-file", function()
    local free_mem_kib, total_mem_kib

    if is_windows() then
        free_mem_kib, total_mem_kib = get_memory_info_windows()
    else
        free_mem_kib, total_mem_kib = get_memory_info_linux()
    end

    if total_mem_kib > 0 then
        set_memory_properties(free_mem_kib, total_mem_kib)
    else
        mp.msg.error("Could not determine total memory.")
    end
end)

cross-posted from: https://lemmy.world/post/1594575

This script will get MPV watch history from files watch_later dir and display them in reverse order of watch. The list is numbered and a prompt for a number will play the desired file in MPV

Need line "write-filename-in-watch-later-config=yes" in mpv.conf Deps rg (ripgrep)

#!/usr/bin/env bash
# Return mpv watch history oldest to newest. 
# Need line "write-filename-in-watch-later-config=yes" in mpv.conf
# Deps rg

watch_later_dir="$HOME/.config/mpv/watch_later/"

SAVEIFS=$IFS
IFS=$'\n'

if [ ! -d "$watch_later_dir" ]; then
    echo "Specified dir doesn't exist: $watch_later_dir"
    echo "Set var watch_later_dir to your watch later dir"
    echo "also, mpv.conf should have line \"write-filename-in-watch-later-config=yes\""
    exit 1
fi

watch_later_files="$(find "$watch_later_dir" -type f -printf "%T@ %p\n" | sort | sed 's/^\([0-9]\+\.[0-9]\+\) //')"

file_count=$(find "$watch_later_dir" -type f | wc -l)

if [ "$file_count" -eq 0 ]; then
    echo "no files found in \"$watch_later_dir\""
    exit 1
fi

watch_later_files=($watch_later_files) 

filepaths_not_echoed="$(for (( i=0; i<${#watch_later_files[@]}; i++ ))
do
  cat "${watch_later_files[$i]}" | rg -o --color=never '(/|http).*'
done)"

filepaths_not_echoed=($filepaths_not_echoed) 

# Reverse the order of array
length=${#filepaths_not_echoed[@]}
for ((i=0; i<length/2; i++)); do
    temp="${filepaths_not_echoed[i]}"
    filepaths_not_echoed[i]="${filepaths_not_echoed[length-i-1]}"
    filepaths_not_echoed[length-i-1]="$temp"
done

filepaths="$(for (( i=0; i<${#watch_later_files[@]}; i++ ))
do
  echo -n "$(( $i - $file_count +1 )) " | sed 's/^-//' 
  cat "${watch_later_files[$i]}" | rg -o --color=never '/.*'
done)"

#echo "$filepaths" | perl -pe 's/^(\d+ ).*\//$1/g' | rg \
echo "$filepaths" | sed -E 's/^([0-9]+ ).*\//\1/g' | rg \
  --colors 'match:none' \
  --colors 'match:fg:0,200,0' \
  --colors 'match:bg:0,0,0' \
  --colors 'match:style:bold' \
  "[^0-9 ].*" 

IFS=$SAVEIFS

read -p "Enter number to play " selection

echo "${filepaths_not_echoed[$selection]}"

setsid >/dev/null 2>&1 </dev/null \
mpv "${filepaths_not_echoed[$selection]}" 2>&1 >/dev/null &