iTunes の Podcast の音声が聞きづらいことが結構あるのでイコライザを "Spoken Word" に設定したり、デッドリンクを削除したりする

itunes4win.go

package main

import (
        "github.com/mattn/go-ole"
        "github.com/mattn/go-ole/oleutil"
        "fmt"
        "strconv"
)

func main() {
        ole.CoInitialize(0)
        unknown, _ := oleutil.CreateObject("iTunes.Application")
        itunes, _  := unknown.QueryInterface(ole.IID_IDispatch)
        library    := oleutil.MustGetProperty(itunes, "LibraryPlaylist").ToIDispatch()
        tracks     := oleutil.MustGetProperty(library, "Tracks").ToIDispatch()
        cnt        := int(oleutil.MustGetProperty(tracks, "Count").Val)

        for i := 1; i <= cnt; i++ {
                if oleutil.MustGetProperty(tracks, "item", i).Val != 0 {
                        track := oleutil.MustGetProperty(tracks, "item", i).ToIDispatch()
                        name  := getTrackProperty(track, "name")

                        fmt.Println(strconv.FormatUint(uint64(i), 10) + ":" + name)

                        // Delete dead link
                        location := getTrackProperty(track, "location")
                        if location == "" {
                                oleutil.CallMethod(track, "delete")
                                fmt.Println("Delete dead link ("+ location + ")")
                                continue
                        }

                        // Set equalizer
                        genre := getTrackProperty(track, "genre")
                        eq    := getTrackProperty(track, "eq")
                        if genre == "Podcast" && eq != "Spoken Word" {
                                oleutil.PutProperty(track, "eq", "Spoken Word")
                        }
                }
        }
}

func getTrackProperty(track *ole.IDispatch, property string) string {
        oleVariant := oleutil.MustGetProperty(track, property)
        ret := ""
        if oleVariant.Val != 0 {
                ret = oleVariant.ToString()
        }
        return ret
}