2 caption = list of server commands
3 aux_info_prefix = Permissions:
6 The server process listens on a network socket and accepts connections
7 from para_client or para_audiod. For the connection to succeed the
8 connecting peer must authenticate as one of the users stored in the
9 user table of para_server. Each entry of the user table contains the
10 set of permission bits that are granted to the user. Authenticated
11 users may execute one of the commands below if the set of permission
12 bits of the command is a subset of the permission bits that are
17 purpose = add or update audio files
18 non-opts-name = path...
19 aux_info = AFS_READ | AFS_WRITE
21 Each path must be absolute and refer to either an audio file or a
22 directory. In case of a directory, all audio files in that directory
23 are added recursively. Note that the given paths refer to files or
24 directories on the host on which para_server is running.
28 summary = add all files
30 The default is to add only files ending in a known suffix for a
31 supported audio format.
35 summary = add files lazily
37 If the path already exists in the database, skip this file. This
38 operation is really cheap. Useful to update large directories after
39 some files have been added.
43 summary = force adding/updating
45 Recompute the audio format handler data even if a file with the same
46 path and the same hash value exists.
50 summary = enable verbose mode
52 Print what is being done.
56 purpose = add new attribute(s)
57 non-opts-name = attribute...
58 aux_info = AFS_READ | AFS_WRITE
60 This adds new attributes to the attribute table. At most 64 attributes
65 purpose = run integrity checks on database tables
68 If no options are given, all checks are run.
72 summary = run audio file table checks
74 Report stale paths and invalid image and lyrics ids of the audio
79 summary = check for invalid attributes
81 Report audio files whose attribute bitmask is invalid, i.e., has a bit
82 set which does not correspond to any attribute of the attribute table.
86 summary = check for invalid mood definitions
88 Run syntax checks on all moods of the mood table.
92 summary = find invalid paths in playlists
94 Check all playlists for paths not contained in the audio file table.
98 purpose = copy selected parts of the audio file selector info
99 non-opts-name = source pattern...
100 aux_info = AFS_READ | AFS_WRITE
102 If no option, or only --verbose is given, all fields of the audio
103 file selector info structure are copied to each row of the audio file
104 table whose path matches at least one of the given patterns. Otherwise,
105 only those fields which correspond to the given options are copied.
107 [option attribute-bitmap]
109 summary = copy the attribute bitmap
112 summary = copy the image id
115 summary = copy the lyrics id
118 summary = copy the lastplayed timestamp
121 summary = copy the numplayed counter
124 summary = enable verbose mode
127 purpose = jump N seconds forward or backward
129 aux_info = VSS_READ | VSS_WRITE
131 This sets the 'R' (reposition request) bit of the vss status flags
132 which enqueues a request to jump n seconds forwards or backwards.
138 jumps 30 seconds backwards.
143 purpose = list available commands or print command-specific help
144 non-opts-name = [command]
145 aux_info = NO_PERMISSION_REQUIRED
147 Without any arguments, help prints a list of available commands. When
148 called with a command name as first argument, it prints the description
153 purpose = reload config file, log file and user list
156 Reread the config file and the user list file, close and reopen the log
157 file, and ask the afs process to do the same. Sending the HUP signal
158 to the server process has the same effect as running this command.
162 purpose = initialize the database tables for the audio file selector
163 synopsis = [table_name...]
164 aux_info = AFS_READ | AFS_WRITE
166 When invoked without arguments, this command creates all
167 tables: audio_files, attributes, scores, moods, lyrics, images,
168 playlists. Otherwise only the given tables are created.
172 purpose = reposition the current stream
174 aux_info = VSS_READ | VSS_WRITE
176 Set the 'R' (reposition request) bit of the vss status flags and
177 enqueue a request to jump to n% of the current audio file, where 0 <=
182 purpose = list audio files which match a pattern
183 non-opts-name = [pattern...]
186 If no pattern is given, all files are listed. Otherwise, the command
187 lists all files of the audio file table whose path matches at least
188 one of the given patterns.
190 [option listing-mode]
192 summary = use alternative output format
194 arg_info = optional_arg
198 The optional mode argument is either a single character or a word
199 according to the following list.
201 short (s). List only the path or basename (last component of the path),
202 depending on whether -p is also given. This listing mode acts as if
203 --listing-mode had not been given.
205 long (l). Show detailed information. This is the default if no argument
206 to --listing-mode is supplied.
208 verbose (v). Multi-line output, one row per data field stored in the
211 parser-friendly (p). Like verbose listing mode, but use numerical
212 values for the names of the output fields and prefix each line with
215 mbox (m). Generate output suitable to be viewed with a mail
216 program. One "mail" per matching audio file.
218 chunk-table (c). Print path (or basename, depending on whether -p is
219 also given), chunk time and chunk offsets.
224 summary = list and match basenames only
226 Print only the basename of each matching file and match only the
227 basenames of the paths stored in the audio file table against the
228 given patterns. The default is to print and match the full path.
232 summary = list only admissible files
234 List only files which are admissible with respect to the current mood
239 summary = reverse sort order
242 summary = print dates as seconds after the epoch
245 summary = change sort order
247 arg_info = required_arg
251 The sort order must be given as an required argument. Like for
252 --listing-mode, this argument may either be a single character or a
253 word, according to the following list.
255 path (p). Sort alphabetically by path or basename, depending on
256 whether -b is given. This is the default if --sort is not given.
258 score (s). Iterate over the entries of the score table, rather than
259 the audio file table. This sort order implies --admissible, since
260 the score table contains only admissible files.
282 If --sort is not given, path sort is implied.
286 purpose = list attributes
289 Print the list of all defined attributes which match the given
290 pattern. If no pattern is given, the full list is printed.
295 summary = sort attributes by id
297 The default is to sort alphabetically by name.
299 Attributes are internally represented as an 64 bit array. The attribute
300 id is the bit number in this array.
304 summary = print long listing
306 The long listing prints the attribute id in addition to the name of
307 the attribute. The id is printed as a decimal number and is separated
308 from the name by a tab character.
312 summary = reverse sort order
315 purpose = rename an attribute
316 synopsis = source dest
317 aux_info = AFS_READ | AFS_WRITE
319 Rename the attribute given by the first argument to the destination
320 given by the second argument. It is an error if the destination
325 purpose = close the stream and start to stream the next audio file
326 aux_info = VSS_READ | VSS_WRITE
328 Set the 'N' (next audio file) bit of the vss status flags. This
329 instructs the server to close the current stream, if any. The 'P'
330 (playing) bit is not modified by this command. If it is on, playing
331 continues with the next audio file.
333 This command is equivalent to stop if paused, and has no effect
338 purpose = stop playing after current audio file
339 aux_info = VSS_READ | VSS_WRITE
341 Set the 'O' (no more) bit of the vss status flags which asks
342 para_server to clear the 'P' (playing) bit after the 'N' (next audio
343 file) bit transitions from off to on (because the end of the current
344 audio file is reached). Use this command instead of stop if you don't
349 purpose = suspend the current stream
350 aux_info = VSS_READ | VSS_WRITE
352 Clear the 'P' (playing) bit of the vss status flags.
356 purpose = start or resume playback
357 aux_info = VSS_READ | VSS_WRITE
359 Set the 'P' (playing) bit of the vss status flags.
363 purpose = remove rows from the audio file table
364 non-opts-name = pattern...
365 aux_info = AFS_READ | AFS_WRITE
367 Remove all rows of the audio file table which match any of the given
368 patterns. Note that this affects only the database table; the command
369 won't touch your audio files on disk.
373 summary = print paths of deleted rows
376 summary = don't complain if nothing was removed
377 [option pathname-match]
379 summary = modify matching behaviour
381 Match a slash in the path only with a slash in pattern and not by an
382 asterisk (*) or a question mark (?) metacharacter, nor by a bracket
383 expression ([]) containing a slash (see fnmatch(3)).
387 purpose = remove attribute(s)
388 non-opts-name = pattern...
389 aux_info = AFS_READ | AFS_WRITE
391 Remove all attributes which match any given pattern. All information
392 about the removed attributes in the audio file table is lost.
396 purpose = activate a mood or a playlist
397 non-opts-name = specifier/name
398 aux_info = AFS_READ | AFS_WRITE
400 The specifier is either 'm' or 'p' to indicate whether a playlist or
401 a mood should be activated. Example:
405 activates the mood named 'foo'.
409 purpose = control paraslash senders
410 synopsis = [sender cmd [arguments]]
411 aux_info = VSS_READ | VSS_WRITE
413 Send a command to a specific sender. The following commands are
414 available, but not all senders support every command.
416 help, on, off, add, delete, allow, deny, status.
418 The help command prints the help text of the given sender. If no
419 command is given the list of available senders is shown.
423 para_client sender http help
428 purpose = set or unset attributes
429 synopsis = attribute{+|-}... pattern...
430 aux_info = AFS_READ | AFS_WRITE
432 Set ('+') or unset ('-') the given attributes for all audio files
433 matching the given pattern. Example:
435 setatt rock+ punk+ pop- '*foo.mp3'
437 sets the 'rock' and the 'punk' attribute and unsets the 'pop' attribute
438 of all files ending with 'foo.mp3'.
442 purpose = print server info
443 aux_info = NO_PERMISSION_REQUIRED
445 Show server and afs PID, number of connections, uptime and more.
449 purpose = print information about the current audio file
453 summary = number of times to show the status info
454 arg_info = required_arg
458 Exit after the status information has been shown num times. If this
459 option is not given, the command runs in an endless loop.
461 [option parser-friendly]
463 summary = enable parser-friendly output
465 Show status item identifiers as numerical values and prefix each
466 status item with its size in bytes.
470 purpose = stop playback
471 aux_info = VSS_READ | VSS_WRITE
473 Clear the 'P' (playing) bit and set the 'N' (next audio file) bit of
474 the vss status flags, effectively stopping playback.
478 purpose = list active server tasks
479 aux_info = NO_PERMISSION_REQUIRED
481 For each task, print ID, status and name. This is mostly useful
486 purpose = ask the server to terminate
487 aux_info = VSS_READ | VSS_WRITE
489 Shut down the server. Instead of this command, you can also send
490 SIGINT or SIGTERM to the para_server process. It should never be
491 necessary to send SIGKILL.
495 purpose = manipulate the afs information of audio files
496 non-opts-name = pattern...
497 aux_info = AFS_READ | AFS_WRITE
499 This command modifies the afs info structure of all rows of the audio
500 file table whose path matches at least one of the given patters.
502 If at least one option is given which takes a number as its argument,
503 only those fields of the afs info structure are updated which
504 correspond to the given options while all other fields stay unmodified.
506 If no such option is given, the lastplayed field is set to the current
507 time and the value of the numplayed field is increased by one while
508 all other fields are left unchanged. This mimics what happens when
509 the virtual streaming system selects the file for streaming.
511 If the file is admissible for the current mood (or contained in the
512 current playlist), its score is recomputed according to the changed
517 summary = set the numplayed count manually
519 arg_info = required_arg
522 The numplayed count of an audio file is the number of times the file
523 was selected for streaming. It is one of the inputs to the scoring
524 function which determines the order in which admissible files are
527 The virtual streaming system increases this number automatically each
528 time it opens the file for streaming.
532 summary = set the lastplayed time manually
534 arg_info = required_arg
537 The lastplayed time of an audio file is the time when the file was
538 last opened for streaming.
540 Like the numplayed count, it is an input for the scoring function
541 and is updated automatically by the virtual streaming system.
543 The argument must be a number of seconds since the epoch. Example:
545 touch -l=$(date +%s) file
547 sets the lastplayed time of 'file' to the current time.
551 summary = set the image id
553 arg_info = required_arg
556 The afs info structure of each row of the audio file table contains
557 a slot for the image id of the audio file that corresponds to the
558 row. The image id stored in this slot refers to the key in the image
559 table that identifies the blob.
561 When a new audio file is added to the audio file table, its image
562 id starts out as zero, indicating that there is no image associated
563 with the file. Setting the image id to a non-zero number associates
564 the file with a particular blob of the image table, for example the
565 cover art of the album in jpg format.
569 summary = set the lyrics id
571 arg_info = required_arg
574 This option works just like --image-id, but sets the lyrics ID rather
579 summary = set the amplification value (0-255)
581 arg_info = required_arg
584 The amplification value of an audio file is a number which is stored
585 in the afs info structure.
587 The value determines the scaling factor by which the amplitude of
588 the decoded samples should be multiplied in order to normalize the
589 volume. A value of zero means no amplification, 64 means the amplitude
590 should be multiplied by a factor of two, 128 by three and so on.
592 The amp filter of para_audiod amplifies the volume according to
597 summary = explain what is being done
598 [option pathname-match]
600 summary = modify matching behaviour
602 Match a slash in the path only with a slash in pattern and not by an
603 asterisk (*) or a question mark (?) metacharacter, nor by a bracket
604 expression ([]) containing a slash (see fnmatch(3)).
608 purpose = print the git version string of para_server
609 aux_info = NO_PERMISSION_REQUIRED
612 summary = print detailed (multi-line) version text
614 m4_define(`BLOB_COMMANDS', `
616 purpose = remove `$1' blob(s)
617 non-opts-name = pattern...
618 aux_info = AFS_READ | AFS_WRITE
620 Remove all `$1' blobs which match any of the given patterns.
624 purpose = rename `$1' blob(s)
625 non-opts-name = source dest
626 aux_info = AFS_READ | AFS_WRITE
628 Rename `$1' source to dest. The command fails if the source `$1'
629 does not exist or if the destination `$1' already exists.
633 purpose = add a blob to the `$1' table
634 non-opts-name = `$1'_name
635 aux_info = AFS_READ | AFS_WRITE
637 Read from stdin and ask the audio file selector to create a blob in
638 the `$1' table. If the named blob already exists, it gets replaced
643 purpose = dump a `$1' blob to stdout
644 non-opts-name = `$1'_name
648 purpose = list blobs of type `$1' which match a pattern
649 non-opts-name = [pattern...]
652 Print the list of all blobs which match the given pattern. If no
653 pattern is given, the full list is printed.
657 summary = sort by identifier
659 The default is to sort alphabetically by name.
663 summary = long listing
665 Print identifier and name. The default is to print only the name.
669 summary = reverse sort order
672 BLOB_COMMANDS(`moods', `mood')
673 BLOB_COMMANDS(`playlist', `pl')
674 BLOB_COMMANDS(`image', `img')
675 BLOB_COMMANDS(`lyrics', `lyr')