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diff --git a/trunk/doc/COMMANDS b/trunk/doc/COMMANDS new file mode 100644 index 000000000..652e31511 --- /dev/null +++ b/trunk/doc/COMMANDS @@ -0,0 +1,275 @@ + Music Player Daemon - Commands + + WARNING + This document has not been updated to reflect recent changes in + the MPD protocol. It does not contain all supported commands, + and some commands may now take additional arguments. However, + clients conforming to this specification should still be + compatible with the latest release of MPD. For more up to date + documentation, please see the protocol reference on the wiki at + <http://mpd.wikia.com/wiki/Protocol_Reference>. + +This document is intended for client developers, not end users. + +Format: +------- + +If arguments contain spaces, they should be surrounded by double quotation +marks, ". + +command <type arg1> <type arg2> ... + explanation: w/ arg1 and arg2 + +All data between the client and server is encoded in UTF-8. (Note, +that in UTF-8 all standard ansi characters, 0-127, are the same as a standard +ansi encoding. Also, no ansi character appears in any multi-byte +characters. So, you can use standard C functions like strlen, and strcpy +just fine with UTF-8 encoded strings. For example: "OK\n" encoded in UTF-8 is +simply "OK\n". For more information on UTF=8: +http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 ) + +Command Completion: +------------------- + +A command returns "OK\n" on completion or "ACK some error\n" on failure. +These denote the end of command execution. + +NOTE: +----- + +For manipulating playlists and playing, there are two sets of commands. One +set uses the song id of a song in the playlist, while another set uses the +playlist position of the song. The commands using song id's should be used +instead of the commands that manipulate and control playback based on playlist +position. Using song id's is a safer method when multiple clients are +interacting with MPD. + +Commands: +--------- + +add <string path> + add the file _path_ to the playlist (directories add recursively) + _path_ can also be a single file + increments playlist version by for each song added + +clear + clears the current playlist + increments playlist version by 1 + +clearerror + clear the current error message in status + (this is also accomplished by any command that starts playback) + +close + close the connection with the MPD + +crossfade <int seconds> + sets crossfading between songs + +currentsong + displays the song info of current song (same song that is identified + in status) + +delete <int song> + delete _song_ from playlist + increments playlist version by 1 + +deleteid <int songid> + delete song with _songid_ from playlist + increments playlist version by 1 + +find <string type> <string what> + finds songs in the db that are exactly _what_ + _type_ should be "album", "artist", or "title" + _what_ is what to find + +kill + kill MPD + +list <string type> <string arg1> + list all tags of _type_ + _type_ should be "album" or "artist" + _arg1_ is an optional parameter when type is album, this specifies + to list albums by a artist, where artist is specified with + arg1 + +listall <string path> + lists all songs and directories in _path_ (recursively) + _path_ is optional and maybe a directory or path + +listallinfo <string path> + same as listall command, except it also returns metadata info + in the same format as lsinfo + +load <string name> + loads the playlist _name_.m3u from the playlist directory + increments playlist version by the number of songs added + +lsinfo <string directory> + list contents of _directory_, from the db. _directory_ is optional + +move <int from> <int to> + move song at _from_ to _to_ in the playlist + increments playlist version by 1 + +moveid <int songid> <int to> + move song with _songid_ to _to_ in the playlist + increments playlist version by 1 + +next + plays next song in playlist + +pause <bool pause> + toggle pause/resume playing + _pause_ is required and should be 0 or 1 + NOTE: use of pause command w/o the _pause_ argument is deprecated + +password <string password> + this is used for authentication with the server. + _password_ is simply the plaintext password + +ping + does nothing but return "OK" + +play <int song> + begin playing playlist at song number _song_, _song_ is optional + +playid <int songid> + begin playing playlist at song with _songid_, _songid_ is optional + +playlist + displays the current playlist + NOTE: do not use this, instead use 'playlistinfo' + +playlistinfo <int song> + displays list of songs in the playlist + _song_ is optional and specifies a single song to display info for + +playlistid <int songid> + displays list of songs in the playlist + _songid_ is optional and specifies a single song to display info for + +plchanges <playlist version> + displays changed songs currently in the playlist since + _playlist version_ + NOTE: to detect songs that were deleted at the end of the playlist, + use playlistlength returned by status command. + +plchangesposid <playlist version> + displays changed songs currently in the playlist since + _playlist version_ + This function only returns the position and the id of the changed song, not the complete metadata. This is more bandwidth efficient. + NOTE: to detect songs that were deleted at the end of the playlist, + use playlistlength returned by status command. + +previous + plays previous song in playlist + +random <int state> + set random state to _state_, _state_ should be 0 or 1 + +repeat <int state> + set repeat state to _state_, _state_ should be 0 or 1 + +rm <string name> + removes the playlist <name>.m3u from the playlist directory + +save <string name> + saves the current playlist to _name_.m3u in the playlist directory + +search <string type> <string what> + searches for any song that contain _what_ + _type_ can be "title","artist","album", or "filename" + search is not case sensitive + +seek <int song> <int time> + seeks to the position _time_ (in seconds) of entry _song_ in the + playlist + +seekid <int songid> <int time> + seeks to the position _time_ (in seconds) of song with _songid_ + +setvol <int vol> + set volume to _vol_ + _vol_ the range of volume is 0-100 + +shuffle + shuffles the current playlist + increments playlist version by 1 + +stats + display stats + artists: number of artists + albums: number of albums + songs: number of songs + uptime: daemon uptime in seconds + db_playtime: sum of all song times in db + db_update: last db update in UNIX time + playtime: time length of music played + +status + reports current status of player, and volume level. + volume: (0-100). + repeat: (0 or 1) + playlist: (31-bit unsigned integer, the playlist version number) + playlistlength: (integer, the length of the playlist) + state: ("play", "stop", or "pause") + song: (current song stopped on or playing, playlist song number) + songid: (current song stopped on or playing, playlist songid) + time: <int elapsed>:<time total> (of current playing/paused song) + bitrate: <int bitrate> (instantaneous bitrate in kbps) + xfade: <int seconds> (crossfade in seconds) + audio: <int sampleRate>:<int bits>:<int channels> + updatings_db: <int job id> + error: if there is an error, returns message here + +stop + stop playing + +swap <int song1> <int song2> + swap positions of _song1_ and _song2_ + increments playlist version by 1 + +swapid <int songid1> <int songid2> + swap positions of of songs with song id's of _songid1_ and _songid2_ + increments playlist version by 1 + +update <string path> + searches mp3 directory for new music and removes old music from the db + _path_ is an optional argument that maybe a particular directory or + song/file to update. + returned: + updating_db: <int job id> + where job id, is the job id requested for your update, and is displayed + in status, while the requested update is happening + increments playlist version by 1 + NOTE: To update a number of paths/songs at once, use command_list, + it will be much more faster/efficient. Also, if you use a + command_list for updating, only one update_db job id will be returned + per sequence of updates. + +volume <int change> + change volume by amount _change_ + NOTE: volume command is deprecated, use setvol instead + +COMMAND LIST +------------ + +To facilitate faster adding of files, etc, you can pass a list of commands all +at once using a command list. The command list beings with: + +command_list_begin + +or: + +command_list_ok_begin + +And ends with: + +command_list_end + +It does not execute any commands until the list has ended. The return +value is whatever the return for a list of commands is. On success +for all commands, OK is returned. If a command fails, no more commands +are executed and the appropriate ACK error is returned. If "command_list_ok_begin is used", "list_OK\n" is returned for each successful command executed +in the command list. |