Applescript:如何让 Podcasts 具备快进功能?
Podcasts Fastward AppleScript
作者: Frank 发布时间: 2012-08-31 #Applescript #Podcast #podcasts #QuickTime


tell application "iTunes"

    set setupNeeded to false

    --fetch prior selected playlist name and playback rate
        set targetPlaylistName to do shell script "defaults read com.jeffporten.fastpodcast SelectedPlaylist"
        set playbackRate to do shell script "defaults read com.jeffporten.fastpodcast PlaybackRate"
    on error -- probably first run of script
        set setupNeeded to true
    end try

    if setupNeeded is false then -- confirm using last settings
        set userReply to button returned of (display dialog "Play playlist \"" & targetPlaylistName & "\" at " & playbackRate & " speed?" buttons {"Cancel", "Change...", "OK"} default button "OK")
        if userReply is "Change..." then set setupNeeded to true
    end if

    if setupNeeded is true then -- set up new settings
        set listPlaylists to the name of every playlist
        set targetPlaylistName to (choose from list listPlaylists with prompt "Which playlist to play?" without multiple selections allowed and empty selection allowed) as text
        set selectedSpeed to button returned of (display dialog "Playback rate to use?" & return & return & "(½X and 2X correspond to iPod playback speeds, actually 75% and 150%)" buttons {"Custom", "½X", "2X"})
        if selectedSpeed is "2X" then
            set playbackRate to 1.5
        else if selectedSpeed is "½X" then
            set playbackRate to 0.75
            set playbackRate to text returned of (display dialog "Enter a playback speed. (1.0 is normal speed, 2.0 is true double-speed, 0.5 is true half-speed.)" default answer "1.0")
        end if
    end if

    --store settings in a non-AppleScripty way
    do shell script "defaults write com.jeffporten.fastpodcast SelectedPlaylist " & (quoted form of targetPlaylistName)
    do shell script "defaults write com.jeffporten.fastpodcast PlaybackRate " & (quoted form of (playbackRate as text))

    --actually do the playback in QuickTime Player
    set targetPlaylist to playlist targetPlaylistName
    set trackList to tracks of targetPlaylist
    repeat with i from 1 to count trackList
        set thisTrack to item i of trackList
        set podcastName to album of thisTrack
        set thisLoc to location of thisTrack
        set thisDuration to duration of thisTrack

        tell application "QuickTime Player"
            open thisLoc
            play document 1

            set rate of document 1 to playbackRate

            --if some podcasts should never be rate-altered, delete last line and use this instead
            --if (podcastName does not contain "Onion") then set rate of document 1 to 1.5

            --or for multiple podcasts, add as many of these as you like before "then set rate":
            --and (podcastName does not contain "someOtherPodcast") 

            set nextTrack to false
            set j to 0

            --if the QTP player is manually ended by dragging the slider to the end, automatically starts next podcast
            --if QTP player is closed, script errors out of existence
            --otherwise, when playback is finished, script will close the QuickTime Player document and open the next track in the playlist
            repeat until nextTrack is true
                delay 2
                if current time of document 1 ≥ duration of document 1 then set nextTrack to true
            end repeat

            close document 1
        end tell

        --mark the track as played
        set played count of thisTrack to (played count of thisTrack) + 1

        --I use this AppleScript line to set the rating of the podcast track to one star, which I delete later from a smart playlist
        --set rating of thisTrack to 20
    end repeat
end tell











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