NAME
Audio::MPD - Class for talking to MPD (Music Player Daemon) servers
SYNOPSIS
use Audio::MPD;
my $mpd = new Audio::MPD();
$mpd->play();
sleep 10;
$mpd->next();DESCRIPTION
Audio::MPD gives a clear object-oriented interface for talking to and controlling MPD (Music Player Daemon) servers. A connection to the MPD server is established as soon as a new Audio::MPD object is created. Commands are then send to the server as the class's methods are called.
METHODS
$mpd = new Audio::MPD( [[$password@]$host], [$port] )
The new() method is the constructor for the Audio::MPD class. You may specify a hostname and port, if none is specified then the enviroment variables 'MPD_HOST' and 'MPD_PORT' are checked. Finally if all else fails the defaults 'localhost' and '6600' are used.
An optional password can be specified by prepending it to the hostname, seperated an '@' character.
$mpd->is_connected()
Checks to see if there is a valid connection to the MPD server. First checks that the socket is connected and then sends a Ping command checks that the replyis 'OK'. Returns '1' if connected and undef if not.
$mpd->close_connection()
Closes the connection to the MPD server.
$mpd->kill_mpd()
Send a message to the MPD server telling it to shut down.
$mpd->send_password( password )
Send a plaintext password to the server, which can enable optionally password protected functionality.
$mpd->get_urlhandlers()
Returns an array of supported URL schemes.
$mpd->get_error()
Returns an array containing information about the last error that occured.
- Item 0: The ID number of the error
- Item 1: Human readable error message
- Item 2: The command that caused the error
- Item 3: The position in the command_list of the command (if used)$mpd->get_server_version()
Returns the version number for the server we are connected to.
$mpd->set_repeat( [$repeat] )
Set the repeat mode to $repeat (1 or 0). If $repeat is not specified then the repeat mode is toggled.
$mpd->set_random( [$random] )
Set the random mode to $random (1 or 0). If $random is not specified then the random mode is toggled.
$mpd->set_fade( [$seconds] )
Enabled and sets the duration of crossfade between songs. If $seconds is not sepcified or $seconds is 0, then crossfading is disabled.
$mpd->set_volume( [+][-]$volume )
Sets the audio output volume percentage to absolute $volume. If $volume is prefixed by '+' or '-' then the volume is changed relativly by that value.
$mpd->output_enable( $output )
Enables the specified audio output. $output is the ID of the audio output.
$mpd->output_disable( $output )
Disables the specified audio output. $output is the ID of the audio output.
$mpd->play( [$number], [$fromid] )
Begin playing playlist at song number $number. If $fromid is true then begin playing at song with ID $number.
$mpd->playid( [$songid] )
Begin playing playlist at song ID $songid.
$mpd->pause( [$state] )
Pause playback. If $state is 0 then the current track is unpaused, if $state is 1 then the current track is paused.
$mpd->stop()
Stop playback.
$mpd->next()
Play next song in playlist.
$mpd->prev()
Plays previous song in playlist.
$mpd->seek( $position, [$song], [$fromid] )
Seek to $position seconds. If $song number is not specified then the perl module will try and seek to $position in the current song. If $fromid is true then $song is the ID of the song to seek in.
$mpd->seekid( $position, $songid )
Seek to $position seconds in song ID $songid.
$mpd->clear()
Removed all the songs from the current playlist.
$mpd->add( $path )
Adds a song specified by $path (relative to MPD's music directory) to the current playlist.
$mpd->delete( $song, [$fromid] )
Removes song number $song from the current playlist. If $fromid is true, then $song is the ID of the song to be removed.
$mpd->deleteid( $songid )
Removed the specified songid from the current playlist.
$mpd->load( $playlist )
Loads list of songs from specified playlist file.
$mpd->swap( $song1, $song2, [$fromid] )
Swaps positions of song number $song1 and $song2 on the current playlist. If $fromid is true, then $song1 and $song are the IDs of the songs.
$mpd->swapid( $songid1, $songid2 )
Swaps the postions of song ID $songid1 with song ID $songid2 on the current playlist.
$mpd->shuffle()
Shuffles the current playlist.
$mpd->move( $song, $newpos, [$fromid] )
Moves the postion of song number $song to $newpos. If $fromid is true, then $song is the ID of the song.
$mpd->moveid( $songid, $newpos )
Moves the postion of song ID $songid to $newpos.
$mpd->rm( $playlist )
Deletes playlist named $playlist from MPD's playlist directory.
$mpd->save( $playlist )
Saves the current playlist to a file called $playlist in MPD's playlist directory.
$mpd->search( $type, $string, [$strict] )
Searches through MPD's database of music for matching songs. Where $type is the field to search in: "title","artist","album", or "filename". And $string is the keyword(s) to seach for. If $strict is true then only exact matches are returned.
Returns an array of matching file paths.
$mpd->list( $type, [$artist] )
Returns an array of all the "album" or "artist" in the music database (as chosen by $type). $artist is an optional parameter, which will only return albums by the specified $artist when $type is "album".
$mpd->listall( [$path] )
Returns an array of all the songs in the music database. If $path is specified, then it only returns songs matching the directory/path.
$mpd->listallinfo( [$path] )
Returns an array of hashes containing all the paths and metadata about songs in the music database. If $path is specified, then it only returns songs matching the directory/path.
$mpd->lsinfo( [$directory] )
Returns an array of hashes containing all the paths and metadata about songs in the specified directory. If no directory is specified, then only the songs/directories in the root directory are listed.
$mpd->crop()
Removes all of the songs from the current playlist *except* the currently playing song.
$mpd->playlist( )
Returns a arrayref, containing a hashref of metadata for each of the songs in the current playlist.
$mpd->get_song_info( $song, $fromid )
Returns an a hash containing information about song number $song. If $fromid is true, then $song is the ID of the song.
$mpd->get_song_info_from_id( $songid )
Returns an a hash containing information about song ID $songid.
$mpd->searchadd( $type, $string )
Performs the same action as $mpd->search(), only it adds any matching songs to the current playlist, instead of just returning information about them.
$mpd->get_title( [$song] )
Returns the 'title string' of song number $song. The 'title' is the artist and title of the song. If the artist isn't available, then just the title is returned. If there is no title available, then the filename is returned.
If $song is not specified, then the 'title' of the current song is returned.
$mpd->get_time_format( [$song] )
Returns the current position and duration of the current song. String is formatted at "M:SS/M:SS". With the current time first.
$mpd->get_time_info( )
Return current timing information in various different formats contained in a hashref with the following keys:
- minutes_so_far
- seconds_so_far
- time_so_far
- minutes
- seconds
- percentage
- time_total
- seconds_total
- seconds_left
- time_left
AUTHOR
Written by Tue Abrahamsen (twoface@wtf.dk)
Documented by Nicholas J. Humfrey, njh@aelius.com
COPYRIGHT AND LICENSE
Copyright (C) 2005 Tue Abrahamsen
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.