Convert to Ogg Vorbis - editor script for Defold

convert_sound.editor_script

-- 1. Put this script into your project's dir as `convert_sound.editor_script` (the extension is important!)
-- 2. Click "Project / Reload Editor Scripts"
-- 3. Download the latest ffmpeg from https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-full.7z or 
--    from https://ffmpeg.org/download.html for other platforms
-- 4. Put ffmpeg executable into FFMPEG_LOCATION or modify the FFMPEG_LOCATION path
-- 5. Tune output audio file quality:
--    Range is -1.0 to 10.0, where 10.0 is highest quality.
--    Default is 3 with a target of 112kbps, and it's enough for the most games.
--    The formula 16×(q+4) is used below 4, 32×q is used below 8, and 64×(q-4) otherwise.
--    Examples: 112=16×(3+4), 160=32×5, 200=32×6.25, 384=64×(10-4).

local FFMPEG_LOCATION = ""

local M = {}

local function ends_with(str, ending)
    return ending == "" or str:sub(-#ending) == ending
end

local function join(t1, t2)
    local t = {}
    for _, v in ipairs(t1) do
        table.insert(t, v)
    end
    for _, v in ipairs(t2) do
        table.insert(t, v)
    end
    return t
end

local function make_command(opts, quality)
    local path = editor.get(opts.selection, "path")
    path = path:sub(2)

    local output_path = path:sub(1, -5) .. ".ogg"
    if ends_with(string.lower(path), ".ogg") then
        output_path = path:sub(1, -5) .. "_q" .. tostring(quality) .. ".ogg"
    end

    local ffmpeg_args = {
        "-hide_banner",
        "-loglevel", "warning",
        "-stats",
        "-i", path,
        "-vn", -- i.e. no video
        "-c:a", "libvorbis",
        "-q:a", tostring(quality),
        "-ar", "44100",
        "-map_metadata", "-1", -- to strip metadata and save space
        "-y", output_path
    }

    if editor.platform == "x86_64-win32" then
        return {
            {
                action = "shell",
                command = join({"cmd", "/C", FFMPEG_LOCATION .. "ffmpeg.exe"}, ffmpeg_args)
            }
        }
    elseif editor.platform == "x86_64-darwin" or editor.platform == "x86_64-linux" then
        return {
            {
                action = "shell",
                command = join({FFMPEG_LOCATION .. "ffmpeg"}, ffmpeg_args)
            }
        }
    else
        error("ERROR: Not supported platform")
    end
end

function M.get_commands()
    return {
        {
            label = "Convert to Ogg Vorbis (Quality 3)",
            locations = {"Edit", "Assets"},
            query = {selection = {type = "resource", cardinality = "one"}},
            active = function(opts)
                local path = string.lower(editor.get(opts.selection, "path"))
                return ends_with(path, ".wav") or ends_with(path, ".mp3") or ends_with(path, ".ogg")
            end,
            run = function(opts)
                return make_command(opts, 3)
            end
        },
        {
            label = "Convert to Ogg Vorbis (Quality 1)",
            locations = {"Edit", "Assets"},
            query = {selection = {type = "resource", cardinality = "one"}},
            active = function(opts)
                local path = string.lower(editor.get(opts.selection, "path"))
                return ends_with(path, ".wav") or ends_with(path, ".mp3") or ends_with(path, ".ogg")
            end,
            run = function(opts)
                return make_command(opts, 1)
            end
        }
    }
end

return M