No need for JSON.
>From WebUI Help / technical Information / The Logitech server command
line interface
Status command shoud giev the info
Code:
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<playerid> status <start> <itemsPerResponse> <taggedParameters>
The "status" query returns the complete status about a given player,
including the current playlist. Set the <start> parameter to "-" to get the
playlist data starting from the current song.
In this "curent" mode and if repeat is on, the server will attempt to return
<itemsPerResponse> elements, by repeating the playlist at most once, unless
shuffling is on and the server is configured to re-shuffle the playlist at each
loop (in which case it is impossible to predict the song following the last one
in the playlist until this last song has finished playing).
Similarly, in the "curent" mode, if repeat is one, only the current song is
returned, regardless of the value of <itemsPerResponse>.
Clients can subscribe to "status" queries, so that the query results are
automatically returned asynchronously whenever a change occurs to a player.
Please note this mechanism is completely distinct from the "listen" and
"subscribe" commands described elsewhere in this document.
Accepted tagged parameters:
Tag Description
tags Determines which tags are returned. Each returned tag is identified by
a letter (see command "songinfo" for a list of possible fields and their
identifying letter). The default tags value for this query is "gald". In
addition to the tags supported by "songinfo" there's the special "DD" tag,
which would return no track information, but the total duration of the current
playlist only.
subscribe This optional parameter controls the subscription to the player
status. Only one status subscription is possible per player and connection.
Subscription is enabled by using this parameter with a positive integer. It
is disabled by using "-". When the subscription is enabled, normal "status"
queries (i.e. not using the "subscribe" parameter) can be performed and will
have no effect on the subscription in place.
When enabled, the "status" request is automatically re-generated on player
change (and sent asynchronously to the CLI client). The number indicates the
time interval in seconds between automatic generations in case nothing happened
to the player in the interval. Use "0" to disable this last feature and only be
notified on player or playlist changes. .
.
.
.Example:
Simple example
Request: "a5:41:d2:cd:cd:05 status 0 2 tags:<LF>"
Response: "a5:41:d2:cd:cd:05 status 0 2 tags: player_name:127.0.0.1
player_connected:1 power:1 mode:play rate:1 time:13.7129358076728
duration:252.630204081633 mixer%20volume:50 mixer%20treble:50 mixer%20bass:50
mixer%20pitch:100 playlist%20repeat:2 playlist%20shuffle:0 playlist_cur_index:1
playlist_tracks:3 playlist%20index:0 title:Left%20Outside%20Alone
playlist%20index:1 title:Bounce%20[Original%20Version]<LF>"
Current mode example
Request: "a5:41:d2:cd:cd:05 status - 2 tags:<LF>"
Response: "a5:41:d2:cd:cd:05 status - 2 tags: player_name:127.0.0.1
player_connected:1 power:1 mode:play rate:1 time:18.721127818274
duration:252.630204081633 mixer%20volume:50 mixer%20treble:50 mixer%20bass:50
mixer%20pitch:100 playlist%20repeat:2 playlist%20shuffle:0 playlist_cur_index:1
playlist_tracks:3 playlist%20index:1 title:Bounce%20[Original%20Version]
playlist%20index:2 title:Open%20Up%20[Radio%20Edit]<LF>"
Subscribe mode example
Request: "a5:41:d2:cd:cd:05 status - 2 subscribe:30<LF>"
Response: "a5:41:d2:cd:cd:05 status - 2 subscribe:30 player_name:127.0.0.1
... (same as above)
10 seconds later, player is turned off, CLI generates and sends:
"a5:41:d2:cd:cd:05 status - 2 subscribe:30 player_name:127.0.0.1
player_connected:1 power:0<LF>"
30 seconds (the subscribe value) elapse, no changes to the player, the CLI
generates and sends:
"a5:41:d2:cd:cd:05 status - 2 subscribe:30 player_name:127.0.0.1
player_connected:1 power:0<LF>"
--------------------
songinfo tags
Code:
--------------------
Tag Description
rescan Returned with value 1 if the server is still scanning the
database. The results may therefore be incomplete. Not returned if no scan is
in progress.
count Number of results returned by the query, that is, total number
of elements to return for this song.
id Track ID.
title Song title
a artist Artist name.
A <role> For every artist role (one of "artist", "composer",
"conductor", "band", "albumartist" or "trackartist"), a comma separated list of
names.
B buttons A hash with button definitions. Only available for
certain plugins such as Pandora.
c coverid coverid to use when constructing an artwork URL, such
as /music/$coverid/cover.jpg
C compilation 1 if the album this track belongs to is a compilation
d duration Song duration in seconds.
e album_id Album ID. Only if known.
f filesize Song file length in bytes. Only if known.
g genre Genre name. Only if known.
G genres Genre names, separated by commas (only useful if the server is
set to handle multiple items in tags).
i disc Disc number. Only if known.
I samplesize Song sample size (in bits)
j coverart 1 if coverart is available for this song. Not listed
otherwise.
J artwork_track_id Identifier of the album track used by the
server to display the album's artwork. Not listed if artwork is not available
for this album.
k comment Song comments, if any.
K artwork_url A full URL to remote artwork. Only available for
certain online music services.
l album Album name. Only if known.
L info_link A custom link to use for trackinfo. Only available for
certain online music services.
m bpm Beats per minute. Only if known.
M musicmagic_mixable 1 if track is mixable, otherwise 0.
n modificationTime Date and time song file was last changed on
disk.
N remote_title Title of the internet radio station.
o type Content type. Only if known.
p genre_id Genre ID. Only if known.
P genre_ids Genre IDs, separated by commas (only useful if the
server is set to handle multiple items in tags).
D addedTime Date and time song file was first added to the database.
U lastUpdated Date and time song file was last updated in the
database.
q disccount Number of discs. Only if known.
r bitrate Song bitrate. Only if known.
R rating Song rating, if known and greater than 0.
O playcount Song play count.
s artist_id Artist ID.
S <role>_ids For each role as defined above, the list of ids.
t tracknum Track number. Only if known.
T samplerate Song sample rate (in KHz)
u url Song file url.
v tagversion Version of tag information in song file. Only if known.
w lyrics Lyrics. Only if known.
x remote If 1, this is a remote track.
E extid Some tracks have an external identifier (eg. from an online
music service).
X album_replay_gain Replay gain of the album (in dB), if any
y year Song year. Only if known.
Y replay_gain Replay gain (in dB), if any
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