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 forward or backward in the current audio file
129 aux_info = VSS_READ | VSS_WRITE
131 This enqueues a request to reposition the audio stream according to
132 the argument, which may be a signed or an unsigned integer. Negative
133 values correspond to backward jumps.
135 If a negative number is given whose absolute value exceeds the current
136 postition of the stream, a jump to the beginning of the audio file
137 is performed. If a positive amount of seconds is given which exceeds
138 the remaining time of the audio file, the next audio file is loaded.
143 purpose = list available commands or print command-specific help
144 non-opts-name = [command]
145 aux_info = NO_PERMISSION_REQUIRED
147 When executed without any arguments, the available server commands
148 are listed. Otherwise, if the first argument is the name of a server
149 command, the description of this command is shown.
151 m4_include(`long-help.m4')
154 purpose = reload config file, log file and user list
157 Reread the config file and the user list file, close and reopen the log
158 file, and ask the afs process to do the same. Sending the HUP signal
159 to the server process has the same effect as running this command.
163 purpose = initialize the database tables for the audio file selector
164 synopsis = [table_name...]
165 aux_info = AFS_READ | AFS_WRITE
167 When invoked without arguments, this command creates all
168 tables: audio_files, attributes, scores, moods, lyrics, images,
169 playlists. Otherwise only the given tables are created.
172 m4_include(`com_ll.m4')
175 purpose = reposition the current stream
177 aux_info = VSS_READ | VSS_WRITE
179 Set the 'R' (reposition request) bit of the vss status flags and
180 enqueue a request to jump to n% of the current audio file, where 0 <=
185 purpose = list audio files which match a pattern
186 non-opts-name = [pattern...]
189 If no pattern is given, all files are listed. Otherwise, the command
190 lists all files of the audio file table whose path matches at least
191 one of the given patterns.
193 [option listing-mode]
195 summary = use alternative output format
197 arg_info = optional_arg
201 The optional mode argument is either a single character or a word
202 according to the following list.
204 short (s). List only the path or basename (last component of the path),
205 depending on whether -p is also given. This listing mode acts as if
206 --listing-mode had not been given.
208 long (l). Show detailed information. This is the default if no argument
209 to --listing-mode is supplied.
211 verbose (v). Multi-line output, one row per data field stored in the
214 parser-friendly (p). Like verbose listing mode, but use numerical
215 values for the names of the output fields and prefix each line with
218 mbox (m). Generate output suitable to be viewed with a mail
219 program. One "mail" per matching audio file.
221 chunk-table (c). Print path (or basename, depending on whether -p is
222 also given), chunk time and chunk offsets.
227 summary = list and match basenames only
229 Print only the basename of each matching file and match only the
230 basenames of the paths stored in the audio file table against the
231 given patterns. The default is to print and match the full path.
235 summary = list only admissible files
237 arg_info = optional_arg
238 typestr = specifier/name
241 If the optional argument is supplied, it must be of the form "p/foo"
242 or "m/bar" (which refer to the playlist named "foo" and the mood named
243 "bar", respectively). The command then restricts its output to the set
244 of files which are admissible with respect to the thusly identified
247 If no argument is given, or if the argument is the special value ".",
248 the current mood or playlist is assumed.
252 summary = reverse sort order
255 summary = print dates as seconds after the epoch
258 summary = change sort order
260 arg_info = required_arg
264 The sort order must be given as an required argument. Like for
265 --listing-mode, this argument may either be a single character or a
266 word, according to the following list.
268 path (p). Sort alphabetically by path or basename, depending on
269 whether -b is given. This is the default if --sort is not given.
271 score (s). Iterate over the entries of the score table, rather than
272 the audio file table. This sort order implies --admissible, since
273 the score table contains only admissible files.
295 If --sort is not given, path sort is implied.
299 purpose = list attributes
302 Print the list of all defined attributes which match the given
303 pattern. If no pattern is given, the full list is printed.
308 summary = sort attributes by id
310 The default is to sort alphabetically by name.
312 Attributes are internally represented as an 64 bit array. The attribute
313 id is the bit number in this array.
317 summary = print long listing
319 The long listing prints the attribute id in addition to the name of
320 the attribute. The id is printed as a decimal number and is separated
321 from the name by a tab character.
325 summary = reverse sort order
328 purpose = rename an attribute
329 synopsis = source dest
330 aux_info = AFS_READ | AFS_WRITE
332 Rename the attribute given by the first argument to the destination
333 given by the second argument. It is an error if the destination
338 purpose = close the stream and start to stream the next audio file
339 aux_info = VSS_READ | VSS_WRITE
341 Set the 'N' (next audio file) bit of the vss status flags. This
342 instructs the server to close the current stream, if any. The 'P'
343 (playing) bit is not modified by this command. If it is on, playing
344 continues with the next audio file.
346 This command is equivalent to stop if paused, and has no effect
351 purpose = stop playing after current audio file
352 aux_info = VSS_READ | VSS_WRITE
354 Set the 'O' (no more) bit of the vss status flags which asks
355 para_server to clear the 'P' (playing) bit after the 'N' (next audio
356 file) bit transitions from off to on (because the end of the current
357 audio file is reached). Use this command instead of stop if you don't
362 purpose = suspend the current stream
363 aux_info = VSS_READ | VSS_WRITE
365 Clear the 'P' (playing) bit of the vss status flags.
369 purpose = start or resume playback
370 aux_info = VSS_READ | VSS_WRITE
372 Set the 'P' (playing) bit of the vss status flags.
376 purpose = remove rows from the audio file table
377 non-opts-name = pattern...
378 aux_info = AFS_READ | AFS_WRITE
380 Remove all rows of the audio file table which match any of the given
381 patterns. Note that this affects only the database table; the command
382 won't touch your audio files on disk.
386 summary = print paths of deleted rows
389 summary = don't complain if nothing was removed
390 [option pathname-match]
392 summary = modify matching behaviour
394 Match a slash in the path only with a slash in pattern and not by an
395 asterisk (*) or a question mark (?) metacharacter, nor by a bracket
396 expression ([]) containing a slash (see fnmatch(3)).
400 purpose = remove attribute(s)
401 non-opts-name = pattern...
402 aux_info = AFS_READ | AFS_WRITE
404 Remove all attributes which match any given pattern. All information
405 about the removed attributes in the audio file table is lost.
409 purpose = activate a mood or a playlist
410 non-opts-name = specifier/name
411 aux_info = AFS_READ | AFS_WRITE
413 The specifier is either 'm' or 'p' to indicate whether a playlist or
414 a mood should be activated. Example:
418 activates the mood named 'foo'.
422 summary = print information about the loaded mood or playlist
425 purpose = control paraslash senders
426 synopsis = [sender subcmd [arguments]]
427 aux_info = VSS_READ | VSS_WRITE
429 This command executes a subcommand for the given sender, which is
430 one of "http", "dccp" or "udp". Various subcommands exist to print
431 information about the sender, to activate and deactivate the sender,
432 and to change the access permissions and targets. The following
433 subcommands are available:
435 help, status, on, off, allow, deny, add, delete.
437 All senders support the first four commands. The "allow" and "deny"
438 commands are supported by the http and the dccp senders while "add"
439 and "delete" are only supported by the udp sender. If no sender is
440 given, the list of available senders is shown.
444 Get help for the udp sender (contains further examples):
448 Show the access control list and the number of connected clients of
453 Senders may be activated and deactivated independently of each
454 other. The following command switches off the dccp sender:
458 Add an UDP unicast for a client to the target list of the UDP sender:
460 sender udp add client.foo.org
462 Start UDP multicast, using the default multicast address:
464 sender udp add 224.0.1.38
469 purpose = set or unset attributes
470 synopsis = attribute{+|-}... pattern...
471 aux_info = AFS_READ | AFS_WRITE
473 Set ('+') or unset ('-') the given attributes for all audio files
474 matching the given pattern. Example:
476 setatt rock+ punk+ pop- '*foo.mp3'
478 sets the 'rock' and the 'punk' attribute and unsets the 'pop' attribute
479 of all files ending with 'foo.mp3'.
483 purpose = print server info
484 aux_info = NO_PERMISSION_REQUIRED
486 Show server and afs PID, number of connections, uptime and more.
490 purpose = print information about the current audio file
494 summary = number of times to show the status info
495 arg_info = required_arg
499 Exit after the status information has been shown num times. If this
500 option is not given, the command runs in an endless loop.
502 [option parser-friendly]
504 summary = enable parser-friendly output
506 Show status item identifiers as numerical values and prefix each
507 status item with its size in bytes.
511 purpose = stop playback
512 aux_info = VSS_READ | VSS_WRITE
514 Clear the 'P' (playing) bit and set the 'N' (next audio file) bit of
515 the vss status flags, effectively stopping playback.
519 purpose = ask the server to terminate
520 aux_info = VSS_READ | VSS_WRITE
522 Shut down the server. Instead of this command, you can also send
523 SIGINT or SIGTERM to the para_server process. It should never be
524 necessary to send SIGKILL.
528 purpose = manipulate the afs information of audio files
529 non-opts-name = pattern...
530 aux_info = AFS_READ | AFS_WRITE
532 This command modifies the afs info structure of all rows of the audio
533 file table whose path matches at least one of the given patters.
535 If at least one option is given which takes a number as its argument,
536 only those fields of the afs info structure are updated which
537 correspond to the given options while all other fields stay unmodified.
539 If no such option is given, the lastplayed field is set to the current
540 time and the value of the numplayed field is increased by one while
541 all other fields are left unchanged. This mimics what happens when
542 the virtual streaming system selects the file for streaming.
544 If the file is admissible for the current mood (or contained in the
545 current playlist), its score is recomputed according to the changed
550 summary = set the numplayed count manually
552 arg_info = required_arg
555 The numplayed count of an audio file is the number of times the file
556 was selected for streaming. It is one of the inputs to the scoring
557 function which determines the order in which admissible files are
560 The virtual streaming system increases this number automatically each
561 time it opens the file for streaming.
565 summary = set the lastplayed time manually
567 arg_info = required_arg
570 The lastplayed time of an audio file is the time when the file was
571 last opened for streaming.
573 Like the numplayed count, it is an input for the scoring function
574 and is updated automatically by the virtual streaming system.
576 The argument must be a number of seconds since the epoch. Example:
578 touch -l=$(date +%s) file
580 sets the lastplayed time of 'file' to the current time.
584 summary = set the image id
586 arg_info = required_arg
589 The afs info structure of each row of the audio file table contains
590 a slot for the image id of the audio file that corresponds to the
591 row. The image id stored in this slot refers to the key in the image
592 table that identifies the blob.
594 When a new audio file is added to the audio file table, its image
595 id starts out as zero, indicating that there is no image associated
596 with the file. Setting the image id to a non-zero number associates
597 the file with a particular blob of the image table, for example the
598 cover art of the album in jpg format.
602 summary = set the lyrics id
604 arg_info = required_arg
607 This option works just like --image-id, but sets the lyrics ID rather
612 summary = set the amplification value (0-255)
614 arg_info = required_arg
617 The amplification value of an audio file is a number which is stored
618 in the afs info structure.
620 The value determines the scaling factor by which the amplitude of
621 the decoded samples should be multiplied in order to normalize the
622 volume. A value of zero means no amplification, 64 means the amplitude
623 should be multiplied by a factor of two, 128 by three and so on.
625 The amp filter of para_audiod amplifies the volume according to
630 summary = explain what is being done
631 [option pathname-match]
633 summary = modify matching behaviour
635 Match a slash in the path only with a slash in pattern and not by an
636 asterisk (*) or a question mark (?) metacharacter, nor by a bracket
637 expression ([]) containing a slash (see fnmatch(3)).
641 purpose = print the git version string of para_server
642 aux_info = NO_PERMISSION_REQUIRED
645 summary = print detailed (multi-line) version text
647 m4_define(`BLOB_COMMANDS', `
649 purpose = remove `$1' blob(s)
650 non-opts-name = pattern...
651 aux_info = AFS_READ | AFS_WRITE
653 Remove all `$1' blobs which match any of the given patterns.
657 purpose = rename `$1' blob(s)
658 non-opts-name = source dest
659 aux_info = AFS_READ | AFS_WRITE
661 Rename `$1' source to dest. The command fails if the source `$1'
662 does not exist or if the destination `$1' already exists.
666 purpose = add a blob to the `$1' table
667 non-opts-name = `$1'_name
668 aux_info = AFS_READ | AFS_WRITE
670 Read from stdin and ask the audio file selector to create a blob in
671 the `$1' table. If the named blob already exists, it gets replaced
676 purpose = dump a `$1' blob to stdout
677 non-opts-name = `$1'_name
681 purpose = list blobs of type `$1' which match a pattern
682 non-opts-name = [pattern...]
685 Print the list of all blobs which match the given pattern. If no
686 pattern is given, the full list is printed.
690 summary = sort by identifier
692 The default is to sort alphabetically by name.
696 summary = long listing
698 Print identifier and name. The default is to print only the name.
702 summary = reverse sort order
705 BLOB_COMMANDS(`moods', `mood')
706 BLOB_COMMANDS(`playlist', `pl')
707 BLOB_COMMANDS(`image', `img')
708 BLOB_COMMANDS(`lyrics', `lyr')