]>
code.delx.au - pulseaudio/blob - src/pulse/proplist.h
1 #ifndef foopulseproplisthfoo
2 #define foopulseproplisthfoo
5 This file is part of PulseAudio.
7 Copyright 2007 Lennart Poettering
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as
11 published by the Free Software Foundation; either version 2.1 of the
12 License, or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public
20 License along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 #include <sys/types.h>
27 #include <pulse/cdecl.h>
28 #include <pulse/gccmacro.h>
29 #include <pulse/version.h>
33 /** For streams: localized media name, formatted as UTF-8. e.g. "Guns'N'Roses: Civil War".*/
34 #define PA_PROP_MEDIA_NAME "media.name"
36 /** For streams: localized media title if applicable, formatted as UTF-8. e.g. "Civil War" */
37 #define PA_PROP_MEDIA_TITLE "media.title"
39 /** For streams: localized media artist if applicable, formatted as UTF-8. e.g. "Guns'N'Roses" */
40 #define PA_PROP_MEDIA_ARTIST "media.artist"
42 /** For streams: media language if applicable, in standard POSIX format. e.g. "de_DE" */
43 #define PA_PROP_MEDIA_LANGUAGE "media.language"
45 /** For streams: source filename if applicable, in URI format or local path. e.g. "/home/lennart/music/foobar.ogg" */
46 #define PA_PROP_MEDIA_FILENAME "media.filename"
48 /** For streams: icon for the media. A binary blob containing PNG image data */
49 #define PA_PROP_MEDIA_ICON "media.icon"
51 /** For streams: an XDG icon name for the media. e.g. "audio-x-mp3" */
52 #define PA_PROP_MEDIA_ICON_NAME "media.icon_name"
54 /** For streams: logic role of this media. One of the strings "video", "music", "game", "event", "phone", "animation", "production" */
55 #define PA_PROP_MEDIA_ROLE "media.role"
57 /** For event sound streams: XDG event sound name. e.g. "message-new-email" (Event sound streams are those with media.role set to "event") */
58 #define PA_PROP_EVENT_ID "event.id"
60 /** For event sound streams: localized human readable one-line description of the event, formatted as UTF-8. e.g. "Email from lennart@example.com received." */
61 #define PA_PROP_EVENT_DESCRIPTION "event.description"
63 /** For event sound streams: absolute horizontal mouse position on the screen if the event sound was triggered by a mouse click, integer formatted as text string. e.g. "865" */
64 #define PA_PROP_EVENT_MOUSE_X "event.mouse.x"
66 /** For event sound streams: absolute vertical mouse position on the screen if the event sound was triggered by a mouse click, integer formatted as text string. e.g. "432" */
67 #define PA_PROP_EVENT_MOUSE_Y "event.mouse.y"
69 /** For event sound streams: relative horizontal mouse position on the screen if the event sound was triggered by a mouse click, float formatted as text string, ranging from 0.0 (left side of the screen) to 1.0 (right side of the screen). e.g. "0.65" */
70 #define PA_PROP_EVENT_MOUSE_HPOS "event.mouse.hpos"
72 /** For event sound streams: relative vertical mouse position on the screen if the event sound was triggered by a mouse click, float formatted as text string, ranging from 0.0 (top of the screen) to 1.0 (bottom of the screen). e.g. "0.43" */
73 #define PA_PROP_EVENT_MOUSE_VPOS "event.mouse.vpos"
75 /** For event sound streams: mouse button that triggered the event if applicable, integer formatted as string with 0=left, 1=middle, 2=right. e.g. "0" */
76 #define PA_PROP_EVENT_MOUSE_BUTTON "event.mouse.button"
78 /** For streams that belong to a window on the screen: localized window title. e.g. "Totem Music Player" */
79 #define PA_PROP_WINDOW_NAME "window.name"
81 /** For streams that belong to a window on the screen: a textual id for identifying a window logically. e.g. "org.gnome.Totem.MainWindow" */
82 #define PA_PROP_WINDOW_ID "window.id"
84 /** For streams that belong to a window on the screen: window icon. A binary blob containing PNG image data */
85 #define PA_PROP_WINDOW_ICON "window.icon"
87 /** For streams that belong to a window on the screen: an XDG icon name for the window. e.g. "totem" */
88 #define PA_PROP_WINDOW_ICON_NAME "window.icon_name"
90 /** For streams that belong to an X11 window on the screen: the X11 display string. e.g. ":0.0" */
91 #define PA_PROP_WINDOW_X11_DISPLAY "window.x11.display"
93 /** For streams that belong to an X11 window on the screen: the X11 screen the window is on, an integer formatted as string. e.g. "0" */
94 #define PA_PROP_WINDOW_X11_SCREEN "window.x11.screen"
96 /** For streams that belong to an X11 window on the screen: the X11 monitor the window is on, an integer formatted as string. e.g. "0" */
97 #define PA_PROP_WINDOW_X11_MONITOR "window.x11.monitor"
99 /** For streams that belong to an X11 window on the screen: the window XID, an integer formatted as string. e.g. "25632" */
100 #define PA_PROP_WINDOW_X11_XID "window.x11.xid"
102 /** For clients/streams: localized human readable application name. e.g. "Totem Music Player" */
103 #define PA_PROP_APPLICATION_NAME "application.name"
105 /** For clients/streams: a textual id for identifying an application logically. e.g. "org.gnome.Totem" */
106 #define PA_PROP_APPLICATION_ID "application.id"
108 /** For clients/streams: a version string e.g. "0.6.88" */
109 #define PA_PROP_APPLICATION_VERSION "application.version"
111 /** For clients/streams: application icon. A binary blob containing PNG image data */
112 #define PA_PROP_APPLICATION_ICON "application.icon"
114 /** For clients/streams: an XDG icon name for the application. e.g. "totem" */
115 #define PA_PROP_APPLICATION_ICON_NAME "application.icon_name"
117 /** For clients/streams: application language if applicable, in standard POSIX format. e.g. "de_DE" */
118 #define PA_PROP_APPLICATION_LANGUAGE "application.language"
120 /** For clients/streams on UNIX: application process PID, an integer formatted as string. e.g. "4711" */
121 #define PA_PROP_APPLICATION_PROCESS_ID "application.process.id"
123 /** For clients/streams: application process name. e.g. "totem" */
124 #define PA_PROP_APPLICATION_PROCESS_BINARY "application.process.binary"
126 /** For clients/streams: application user name. e.g. "lennart" */
127 #define PA_PROP_APPLICATION_PROCESS_USER "application.process.user"
129 /** For clients/streams: host name the application runs on. e.g. "omega" */
130 #define PA_PROP_APPLICATION_PROCESS_HOST "application.process.host"
132 /** For clients/streams: the D-Bus host id the application runs on. e.g. "543679e7b01393ed3e3e650047d78f6e" */
133 #define PA_PROP_APPLICATION_PROCESS_MACHINE_ID "application.process.machine_id"
135 /** For devices: device string in the underlying audio layer's format. e.g. "surround51:0" */
136 #define PA_PROP_DEVICE_STRING "device.string"
138 /** For devices: API this device is access with. e.g. "alsa" */
139 #define PA_PROP_DEVICE_API "device.api"
141 /** For devices: localized human readable device one-line description, e.g. "Foobar Industries USB Headset 2000+ Ultra" */
142 #define PA_PROP_DEVICE_DESCRIPTION "device.description"
144 /** For devices: bus path to the device in the OS' format. e.g. "/sys/bus/pci/devices/0000:00:1f.2" */
145 #define PA_PROP_DEVICE_BUS_PATH "device.bus_path"
147 /** For devices: serial number if applicable. e.g. "4711-0815-1234" */
148 #define PA_PROP_DEVICE_SERIAL "device.serial"
150 /** For devices: vendor/product ID if applicable. e.g. 1274:1371 */
151 #define PA_PROP_DEVICE_VENDOR_PRODUCT_ID "device.vendor_product_id"
153 /** For devices: device class. One of "sound", "modem", "monitor", "filter" */
154 #define PA_PROP_DEVICE_CLASS "device.class"
156 /** For devices: form factor if applicable. One of "laptop-speakers", "external-speakers", "telephone", "tv-capture", "webcam-capture", "microphone-capture", "headset", "headphones", "hands-free", "car", "hifi", "computer", "portable" */
157 #define PA_PROP_DEVICE_FORM_FACTOR "device.form_factor"
159 /** For devices: connector of the device if applicable. One of "isa", "pci", "usb", "firewire", "bluetooth" */
160 #define PA_PROP_DEVICE_CONNECTOR "device.connector"
162 /** For devices: access mode of the device if applicable. One of "mmap", "mmap_rewrite", "serial" */
163 #define PA_PROP_DEVICE_ACCESS_MODE "device.access_mode"
165 /** For filter devices: master device id if applicable. */
166 #define PA_PROP_DEVICE_MASTER_DEVICE "device.master_device"
168 /** For devices: buffer size in bytes, integer formatted as string.. */
169 #define PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE "device.buffering.buffer_size"
171 /** For devices: fragment size in bytes, integer formatted as string. */
172 #define PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE "device.buffering.fragment_size"
174 /** For devices: profile identifier for the profile this devices is in. e.g. "analog-stereo", "analog-surround-40", "iec958-stereo", ...*/
175 #define PA_PROP_DEVICE_PROFILE_NAME "device.profile.name"
177 /** For devices: human readable one-line description of the profile this device is in. e.g. "Analog Stereo", ... */
178 #define PA_PROP_DEVICE_PROFILE_DESCRIPTION "device.profile.description"
180 /** For modules: the author's name, formatted as UTF-8 string. e.g. "Lennart Poettering" */
181 #define PA_PROP_MODULE_AUTHOR "module.author"
183 /** For modules: a human readable one-line description of the module's purpose formatted as UTF-8. e.g. "Frobnicate sounds with a flux compensator" */
184 #define PA_PROP_MODULE_DESCRIPTION "module.description"
186 /** For modules: a human readable usage description of the module's arguments formatted as UTF-8. */
187 #define PA_PROP_MODULE_USAGE "module.usage"
189 /** For modules: a version string for the module. e.g. "0.9.15" */
190 #define PA_PROP_MODULE_VERSION "module.version"
192 /** A property list object. Basically a dictionary with ASCII strings
193 * as keys and arbitrary data as values. \since 0.9.11 */
194 typedef struct pa_proplist pa_proplist
;
196 /** Allocate a property list. \since 0.9.11 */
197 pa_proplist
* pa_proplist_new ( void );
199 /** Free the property list. \since 0.9.11 */
200 void pa_proplist_free ( pa_proplist
* p
);
202 /** Append a new string entry to the property list, possibly
203 * overwriting an already existing entry with the same key. An
204 * internal copy of the data passed is made. Will accept only valid
205 * UTF-8. \since 0.9.11 */
206 int pa_proplist_sets ( pa_proplist
* p
, const char * key
, const char * value
);
208 /** Append a new string entry to the property list, possibly
209 * overwriting an already existing entry with the same key. An
210 * internal copy of the data passed is made. Will accept only valid
211 * UTF-8. The data can be passed as printf()-style format string with
212 * arguments. \since 0.9.11 */
213 int pa_proplist_setf ( pa_proplist
* p
, const char * key
, const char * format
, ...) PA_GCC_PRINTF_ATTR ( 3 , 4 );
215 /** Append a new arbitrary data entry to the property list, possibly
216 * overwriting an already existing entry with the same key. An
217 * internal copy of the data passed is made. \since 0.9.11 */
218 int pa_proplist_set ( pa_proplist
* p
, const char * key
, const void * data
, size_t nbytes
);
220 /** Return a string entry for the specified key. Will return NULL if
221 * the data is not valid UTF-8. Will return a NUL-terminated string in
222 * an internally allocated buffer. The caller should make a copy of
223 * the data before accessing the property list again. \since 0.9.11 */
224 const char * pa_proplist_gets ( pa_proplist
* p
, const char * key
);
226 /** Return the the value for the specified key. Will return a
227 * NUL-terminated string for string entries. The pointer returned will
228 * point to an internally allocated buffer. The caller should make a
229 * copy of the data before the property list is accessed again. \since
231 int pa_proplist_get ( pa_proplist
* p
, const char * key
, const void ** data
, size_t * nbytes
);
233 /** Update mode enum for pa_proplist_update(). \since 0.9.11 */
234 typedef enum pa_update_mode
{
236 /**< Replace the entirey property list with the new one. Don't keep
237 * any of the old data around */ ,
240 /**< Merge new property list into the existing one, not replacing
241 * any old entries if they share a common key with the new
245 /**< Merge new property list into the existing one, replacing all
246 * old entries that share a common key with the new property
250 /** \cond fulldocs */
251 #define PA_UPDATE_SET PA_UPDATE_SET
252 #define PA_UPDATE_MERGE PA_UPDATE_MERGE
253 #define PA_UPDATE_REPLACE PA_UPDATE_REPLACE
256 /** Merge property list "other" into "p", adhering the merge mode as
257 * specified in "mode". \since 0.9.11 */
258 void pa_proplist_update ( pa_proplist
* p
, pa_update_mode_t mode
, pa_proplist
* other
);
260 /** Removes a single entry from the property list, identified be the
261 * specified key name. \since 0.9.11 */
262 int pa_proplist_unset ( pa_proplist
* p
, const char * key
);
264 /** Similar to pa_proplist_remove() but takes an array of keys to
265 * remove. The array should be terminated by a NULL pointer. Return -1
266 * on failure, otherwise the number of entries actually removed (which
267 * might even be 0, if there where no matching entries to
268 * remove). \since 0.9.11 */
269 int pa_proplist_unset_many ( pa_proplist
* p
, const char * const keys
[]);
271 /** Iterate through the property list. The user should allocate a
272 * state variable of type void* and initialize it with NULL. A pointer
273 * to this variable should then be passed to pa_proplist_iterate()
274 * which should be called in a loop until it returns NULL which
275 * signifies EOL. The property list should not be modified during
276 * iteration through the list -- except for deleting the current
277 * looked at entry. On each invication this function will return the
278 * key string for the next entry. The keys in the property list do not
279 * have any particular order. \since 0.9.11 */
280 const char * pa_proplist_iterate ( pa_proplist
* p
, void ** state
);
282 /** Format the property list nicely as a human readable string. This
283 * works very much like pa_proplist_to_string_sep() and uses a newline
284 * as seperator and appends one final one. Call pa_xfree() on the
285 * result. \since 0.9.11 */
286 char * pa_proplist_to_string ( pa_proplist
* p
);
288 /** Format the property list nicely as a human readable string and
289 * choose the seperator. Call pa_xfree() on the result. \since
291 char * pa_proplist_to_string_sep ( pa_proplist
* p
, const char * sep
);
293 /** Allocate a new property list and assign key/value from a human
294 * readable string. \since 0.9.15 */
295 pa_proplist
* pa_proplist_from_string ( const char * str
);
297 /** Returns 1 if an entry for the specified key is existant in the
298 * property list. \since 0.9.11 */
299 int pa_proplist_contains ( pa_proplist
* p
, const char * key
);
301 /** Remove all entries from the property list object. \since 0.9.11 */
302 void pa_proplist_clear ( pa_proplist
* p
);
304 /** Allocate a new property list and copy over every single entry from
305 * the specific list. \since 0.9.11 */
306 pa_proplist
* pa_proplist_copy ( pa_proplist
* t
);
308 /** Return the number of entries on the property list. \since 0.9.15 */
309 unsigned pa_proplist_size ( pa_proplist
* t
);
311 /** Returns 0 when the proplist is empty, positive otherwise \since 0.9.15 */
312 int pa_proplist_isempty ( pa_proplist
* t
);