1 #ifndef foointrospecthfoo
2 #define foointrospecthfoo
7 This file is part of PulseAudio.
9 Copyright 2004-2006 Lennart Poettering
10 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
12 PulseAudio is free software; you can redistribute it and/or modify
13 it under the terms of the GNU Lesser General Public License as published
14 by the Free Software Foundation; either version 2 of the License,
15 or (at your option) any later version.
17 PulseAudio is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public License
23 along with PulseAudio; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
30 #include <pulse/operation.h>
31 #include <pulse/context.h>
32 #include <pulse/cdecl.h>
33 #include <pulse/channelmap.h>
34 #include <pulse/volume.h>
36 /** \page introspect Server Query and Control
38 * \section overv_sec Overview
40 * Sometimes it is necessary to query and modify global settings in the
41 * server. For this, PulseAudio has the introspection API. It can list sinks,
42 * sources, samples and other aspects of the server. It can also modify the
43 * attributes of the server that will affect operations on a global level,
44 * and not just the application's context.
46 * \section query_sec Querying
48 * All querying is done through callbacks. This design is necessary to
49 * maintain an asynchronous design. The client will request the information
50 * and some time later, the server will respond with the desired data.
52 * Some objects can have multiple entries at the server. When requesting all
53 * of these at once, the callback will be called multiple times, once for
54 * each object. When the list has been exhausted, the callback will be called
55 * without an information structure and the eol parameter set to a non-zero
58 * Note that even if a single object is requested, and not the entire list,
59 * the terminating call will still be made.
61 * If an error occurs, the callback will be called without and information
62 * structure and eol set to zero.
64 * Data members in the information structures are only valid during the
65 * duration of the callback. If they are required after the callback is
66 * finished, a deep copy must be performed.
68 * \subsection server_subsec Server Information
70 * The server can be queried about its name, the environment it's running on
71 * and the currently active global defaults. Calling
72 * pa_context_get_server_info() will get access to a pa_server_info structure
73 * containing all of these.
75 * \subsection memstat_subsec Memory Usage
77 * Statistics about memory usage can be fetched using pa_context_stat(),
78 * giving a pa_stat_info structure.
80 * \subsection sinksrc_subsec Sinks and Sources
82 * The server can have an arbitrary number of sinks and sources. Each sink
83 * and source have both an index and a name associated with it. As such
84 * there are three ways to get access to them:
86 * \li By index - pa_context_get_sink_info_by_index() /
87 * pa_context_get_source_info_by_index()
88 * \li By name - pa_context_get_sink_info_by_name() /
89 * pa_context_get_source_info_by_name()
90 * \li All - pa_context_get_sink_info_list() /
91 * pa_context_get_source_info_list()
93 * All three method use the same callback and will provide a pa_sink_info or
94 * pa_source_info structure.
96 * \subsection siso_subsec Sink Inputs and Source Outputs
98 * Sink inputs and source outputs are the representations of the client ends
99 * of streams inside the server. I.e. they connect a client stream to one of
100 * the global sinks or sources.
102 * Sink inputs and source outputs only have an index to identify them. As
103 * such, there are only two ways to get information about them:
105 * \li By index - pa_context_get_sink_input_info() /
106 * pa_context_get_source_output_info()
107 * \li All - pa_context_get_sink_input_info_list() /
108 * pa_context_get_source_output_info_list()
110 * The structure returned is the pa_sink_input_info or pa_source_output_info
113 * \subsection samples_subsec Samples
115 * The list of cached samples can be retrieved from the server. Three methods
116 * exist for querying the sample cache list:
118 * \li By index - pa_context_get_sample_info_by_index()
119 * \li By name - pa_context_get_sample_info_by_name()
120 * \li All - pa_context_get_sample_info_list()
122 * Note that this only retrieves information about the sample, not the sample
125 * \subsection module_subsec Driver Modules
127 * PulseAudio driver modules are identified by index and are retrieved using either
128 * pa_context_get_module_info() or pa_context_get_module_info_list(). The
129 * information structure is called pa_module_info.
131 * \subsection autoload_subsec Autoload Entries
133 * Modules can be autoloaded as a result of a client requesting a certain
134 * sink or source. This mapping between sink/source names and modules can be
135 * queried from the server:
137 * \li By index - pa_context_get_autoload_info_by_index()
138 * \li By sink/source name - pa_context_get_autoload_info_by_name()
139 * \li All - pa_context_get_autoload_info_list()
141 * \subsection client_subsec Clients
143 * PulseAudio clients are also identified by index and are retrieved using
144 * either pa_context_get_client_info() or pa_context_get_client_info_list().
145 * The information structure is called pa_client_info.
147 * \section ctrl_sec Control
149 * Some parts of the server are only possible to read, but most can also be
150 * modified in different ways. Note that these changes will affect all
151 * connected clients and not just the one issuing the request.
153 * \subsection sinksrc_subsec Sinks and Sources
155 * The most common change one would want to do to sinks and sources is to
156 * modify the volume of the audio. Identical to how sinks and sources can
157 * be queried, there are two ways of identifying them:
159 * \li By index - pa_context_set_sink_volume_by_index() /
160 * pa_context_set_source_volume_by_index()
161 * \li By name - pa_context_set_sink_volume_by_name() /
162 * pa_context_set_source_volume_by_name()
164 * It is also possible to mute a sink or source:
166 * \li By index - pa_context_set_sink_mute_by_index() /
167 * pa_context_set_source_mute_by_index()
168 * \li By name - pa_context_set_sink_mute_by_name() /
169 * pa_context_set_source_mute_by_name()
171 * \subsection siso_subsec Sink Inputs and Source Outputs
173 * If an application desires to modify the volume of just a single stream
174 * (commonly one of its own streams), this can be done by setting the volume
175 * of its associated sink input, using pa_context_set_sink_input_volume().
177 * There is no support for modifying the volume of source outputs.
179 * It is also possible to remove sink inputs and source outputs, terminating
180 * the streams associated with them:
182 * \li Sink input - pa_context_kill_sink_input()
183 * \li Source output - pa_context_kill_source_output()
185 * \subsection module_subsec Modules
187 * Server modules can be remotely loaded and unloaded using
188 * pa_context_load_module() and pa_context_unload_module().
190 * \subsection autoload_subsec Autoload Entries
192 * New module autoloading rules can be added, and existing can be removed
193 * using pa_context_add_autoload() and pa_context_remove_autoload_by_index()
194 * / pa_context_remove_autoload_by_name().
196 * \subsection client_subsec Clients
198 * The only operation supported on clients, is the possibility of kicking
199 * them off the server using pa_context_kill_client().
204 * Routines for daemon introspection.
209 /** Stores information about sinks */
210 typedef struct pa_sink_info
{
211 const char *name
; /**< Name of the sink */
212 uint32_t index
; /**< Index of the sink */
213 const char *description
; /**< Description of this sink */
214 pa_sample_spec sample_spec
; /**< Sample spec of this sink */
215 pa_channel_map channel_map
; /**< Channel map \since 0.8 */
216 uint32_t owner_module
; /**< Index of the owning module of this sink, or PA_INVALID_INDEX */
217 pa_cvolume volume
; /**< Volume of the sink */
218 int mute
; /**< Mute switch of the sink \since 0.8 */
219 uint32_t monitor_source
; /**< Index of the monitor source connected to this sink */
220 const char *monitor_source_name
; /**< The name of the monitor source */
221 pa_usec_t latency
; /**< Length of filled playback buffer of this sink */
222 const char *driver
; /**< Driver name. \since 0.8 */
223 pa_sink_flags_t flags
; /**< Flags \since 0.8 */
226 /** Callback prototype for pa_context_get_sink_info_by_name() and friends */
227 typedef void (*pa_sink_info_cb_t
)(pa_context
*c
, const pa_sink_info
*i
, int eol
, void *userdata
);
229 /** Get information about a sink by its name */
230 pa_operation
* pa_context_get_sink_info_by_name(pa_context
*c
, const char *name
, pa_sink_info_cb_t cb
, void *userdata
);
232 /** Get information about a sink by its index */
233 pa_operation
* pa_context_get_sink_info_by_index(pa_context
*c
, uint32_t id
, pa_sink_info_cb_t cb
, void *userdata
);
235 /** Get the complete sink list */
236 pa_operation
* pa_context_get_sink_info_list(pa_context
*c
, pa_sink_info_cb_t cb
, void *userdata
);
238 /** Stores information about sources */
239 typedef struct pa_source_info
{
240 const char *name
; /**< Name of the source */
241 uint32_t index
; /**< Index of the source */
242 const char *description
; /**< Description of this source */
243 pa_sample_spec sample_spec
; /**< Sample spec of this source */
244 pa_channel_map channel_map
; /**< Channel map \since 0.8 */
245 uint32_t owner_module
; /**< Owning module index, or PA_INVALID_INDEX */
246 pa_cvolume volume
; /**< Volume of the source \since 0.8 */
247 int mute
; /**< Mute switch of the sink \since 0.8 */
248 uint32_t monitor_of_sink
; /**< If this is a monitor source the index of the owning sink, otherwise PA_INVALID_INDEX */
249 const char *monitor_of_sink_name
; /**< Name of the owning sink, or PA_INVALID_INDEX */
250 pa_usec_t latency
; /**< Length of filled record buffer of this source. \since 0.5 */
251 const char *driver
; /**< Driver name \since 0.8 */
252 pa_source_flags_t flags
; /**< Flags \since 0.8 */
255 /** Callback prototype for pa_context_get_source_info_by_name() and friends */
256 typedef void (*pa_source_info_cb_t
)(pa_context
*c
, const pa_source_info
*i
, int eol
, void *userdata
);
258 /** Get information about a source by its name */
259 pa_operation
* pa_context_get_source_info_by_name(pa_context
*c
, const char *name
, pa_source_info_cb_t cb
, void *userdata
);
261 /** Get information about a source by its index */
262 pa_operation
* pa_context_get_source_info_by_index(pa_context
*c
, uint32_t id
, pa_source_info_cb_t cb
, void *userdata
);
264 /** Get the complete source list */
265 pa_operation
* pa_context_get_source_info_list(pa_context
*c
, pa_source_info_cb_t cb
, void *userdata
);
267 /** Server information */
268 typedef struct pa_server_info
{
269 const char *user_name
; /**< User name of the daemon process */
270 const char *host_name
; /**< Host name the daemon is running on */
271 const char *server_version
; /**< Version string of the daemon */
272 const char *server_name
; /**< Server package name (usually "pulseaudio") */
273 pa_sample_spec sample_spec
; /**< Default sample specification */
274 const char *default_sink_name
; /**< Name of default sink. \since 0.4 */
275 const char *default_source_name
; /**< Name of default sink. \since 0.4*/
276 uint32_t cookie
; /**< A random cookie for identifying this instance of PulseAudio. \since 0.8 */
279 /** Callback prototype for pa_context_get_server_info() */
280 typedef void (*pa_server_info_cb_t
) (pa_context
*c
, const pa_server_info
*i
, void *userdata
);
282 /** Get some information about the server */
283 pa_operation
* pa_context_get_server_info(pa_context
*c
, pa_server_info_cb_t cb
, void *userdata
);
285 /** Stores information about modules */
286 typedef struct pa_module_info
{
287 uint32_t index
; /**< Index of the module */
288 const char*name
, /**< Name of the module */
289 *argument
; /**< Argument string of the module */
290 uint32_t n_used
; /**< Usage counter or PA_INVALID_INDEX */
291 int auto_unload
; /**< Non-zero if this is an autoloaded module */
294 /** Callback prototype for pa_context_get_module_info() and firends*/
295 typedef void (*pa_module_info_cb_t
) (pa_context
*c
, const pa_module_info
*i
, int eol
, void *userdata
);
297 /** Get some information about a module by its index */
298 pa_operation
* pa_context_get_module_info(pa_context
*c
, uint32_t idx
, pa_module_info_cb_t cb
, void *userdata
);
300 /** Get the complete list of currently loaded modules */
301 pa_operation
* pa_context_get_module_info_list(pa_context
*c
, pa_module_info_cb_t cb
, void *userdata
);
303 /** Stores information about clients */
304 typedef struct pa_client_info
{
305 uint32_t index
; /**< Index of this client */
306 const char *name
; /**< Name of this client */
307 uint32_t owner_module
; /**< Index of the owning module, or PA_INVALID_INDEX */
308 const char *driver
; /**< Driver name \since 0.8 */
311 /** Callback prototype for pa_context_get_client_info() and firends*/
312 typedef void (*pa_client_info_cb_t
) (pa_context
*c
, const pa_client_info
*i
, int eol
, void *userdata
);
314 /** Get information about a client by its index */
315 pa_operation
* pa_context_get_client_info(pa_context
*c
, uint32_t idx
, pa_client_info_cb_t cb
, void *userdata
);
317 /** Get the complete client list */
318 pa_operation
* pa_context_get_client_info_list(pa_context
*c
, pa_client_info_cb_t cb
, void *userdata
);
320 /** Stores information about sink inputs */
321 typedef struct pa_sink_input_info
{
322 uint32_t index
; /**< Index of the sink input */
323 const char *name
; /**< Name of the sink input */
324 uint32_t owner_module
; /**< Index of the module this sink input belongs to, or PA_INVALID_INDEX when it does not belong to any module */
325 uint32_t client
; /**< Index of the client this sink input belongs to, or PA_INVALID_INDEX when it does not belong to any client */
326 uint32_t sink
; /**< Index of the connected sink */
327 pa_sample_spec sample_spec
; /**< The sample specification of the sink input */
328 pa_channel_map channel_map
; /**< Channel map */
329 pa_cvolume volume
; /**< The volume of this sink input */
330 pa_usec_t buffer_usec
; /**< Latency due to buffering in sink input, see pa_latency_info for details */
331 pa_usec_t sink_usec
; /**< Latency of the sink device, see pa_latency_info for details */
332 const char *resample_method
; /**< Thre resampling method used by this sink input. \since 0.7 */
333 const char *driver
; /**< Driver name \since 0.8 */
334 } pa_sink_input_info
;
336 /** Callback prototype for pa_context_get_sink_input_info() and firends*/
337 typedef void (*pa_sink_input_info_cb_t
) (pa_context
*c
, const pa_sink_input_info
*i
, int eol
, void *userdata
);
339 /** Get some information about a sink input by its index */
340 pa_operation
* pa_context_get_sink_input_info(pa_context
*c
, uint32_t idx
, pa_sink_input_info_cb_t cb
, void *userdata
);
342 /** Get the complete sink input list */
343 pa_operation
* pa_context_get_sink_input_info_list(pa_context
*c
, pa_sink_input_info_cb_t cb
, void *userdata
);
345 /** Stores information about source outputs */
346 typedef struct pa_source_output_info
{
347 uint32_t index
; /**< Index of the sink input */
348 const char *name
; /**< Name of the sink input */
349 uint32_t owner_module
; /**< Index of the module this sink input belongs to, or PA_INVALID_INDEX when it does not belong to any module */
350 uint32_t client
; /**< Index of the client this sink input belongs to, or PA_INVALID_INDEX when it does not belong to any client */
351 uint32_t source
; /**< Index of the connected source */
352 pa_sample_spec sample_spec
; /**< The sample specification of the source output */
353 pa_channel_map channel_map
; /**< Channel map */
354 pa_usec_t buffer_usec
; /**< Latency due to buffering in the source output, see pa_latency_info for details. \since 0.5 */
355 pa_usec_t source_usec
; /**< Latency of the source device, see pa_latency_info for details. \since 0.5 */
356 const char *resample_method
; /**< Thre resampling method used by this source output. \since 0.7 */
357 const char *driver
; /**< Driver name \since 0.8 */
358 } pa_source_output_info
;
360 /** Callback prototype for pa_context_get_source_output_info() and firends*/
361 typedef void (*pa_source_output_info_cb_t
) (pa_context
*c
, const pa_source_output_info
*i
, int eol
, void *userdata
);
363 /** Get information about a source output by its index */
364 pa_operation
* pa_context_get_source_output_info(pa_context
*c
, uint32_t idx
, pa_source_output_info_cb_t cb
, void *userdata
);
366 /** Get the complete list of source outputs */
367 pa_operation
* pa_context_get_source_output_info_list(pa_context
*c
, pa_source_output_info_cb_t cb
, void *userdata
);
369 /** Set the volume of a sink device specified by its index */
370 pa_operation
* pa_context_set_sink_volume_by_index(pa_context
*c
, uint32_t idx
, const pa_cvolume
*volume
, pa_context_success_cb_t cb
, void *userdata
);
372 /** Set the volume of a sink device specified by its name */
373 pa_operation
* pa_context_set_sink_volume_by_name(pa_context
*c
, const char *name
, const pa_cvolume
*volume
, pa_context_success_cb_t cb
, void *userdata
);
375 /** Set the mute switch of a sink device specified by its index \since 0.8 */
376 pa_operation
* pa_context_set_sink_mute_by_index(pa_context
*c
, uint32_t idx
, int mute
, pa_context_success_cb_t cb
, void *userdata
);
378 /** Set the mute switch of a sink device specified by its name \since 0.8 */
379 pa_operation
* pa_context_set_sink_mute_by_name(pa_context
*c
, const char *name
, int mute
, pa_context_success_cb_t cb
, void *userdata
);
381 /** Set the volume of a sink input stream */
382 pa_operation
* pa_context_set_sink_input_volume(pa_context
*c
, uint32_t idx
, const pa_cvolume
*volume
, pa_context_success_cb_t cb
, void *userdata
);
384 /** Set the volume of a source device specified by its index \since 0.8 */
385 pa_operation
* pa_context_set_source_volume_by_index(pa_context
*c
, uint32_t idx
, const pa_cvolume
*volume
, pa_context_success_cb_t cb
, void *userdata
);
387 /** Set the volume of a source device specified by its name \since 0.8 */
388 pa_operation
* pa_context_set_source_volume_by_name(pa_context
*c
, const char *name
, const pa_cvolume
*volume
, pa_context_success_cb_t cb
, void *userdata
);
390 /** Set the mute switch of a source device specified by its index \since 0.8 */
391 pa_operation
* pa_context_set_source_mute_by_index(pa_context
*c
, uint32_t idx
, int mute
, pa_context_success_cb_t cb
, void *userdata
);
393 /** Set the mute switch of a source device specified by its name \since 0.8 */
394 pa_operation
* pa_context_set_source_mute_by_name(pa_context
*c
, const char *name
, int mute
, pa_context_success_cb_t cb
, void *userdata
);
396 /** Memory block statistics */
397 typedef struct pa_stat_info
{
398 uint32_t memblock_total
; /**< Currently allocated memory blocks */
399 uint32_t memblock_total_size
; /**< Currentl total size of allocated memory blocks */
400 uint32_t memblock_allocated
; /**< Allocated memory blocks during the whole lifetime of the daemon */
401 uint32_t memblock_allocated_size
; /**< Total size of all memory blocks allocated during the whole lifetime of the daemon */
402 uint32_t scache_size
; /**< Total size of all sample cache entries. \since 0.4 */
405 /** Callback prototype for pa_context_stat() */
406 typedef void (*pa_stat_info_cb_t
) (pa_context
*c
, const pa_stat_info
*i
, void *userdata
);
408 /** Get daemon memory block statistics */
409 pa_operation
* pa_context_stat(pa_context
*c
, pa_stat_info_cb_t cb
, void *userdata
);
411 /** Stores information about sample cache entries */
412 typedef struct pa_sample_info
{
413 uint32_t index
; /**< Index of this entry */
414 const char *name
; /**< Name of this entry */
415 pa_cvolume volume
; /**< Default volume of this entry */
416 pa_sample_spec sample_spec
; /**< Sample specification of the sample */
417 pa_channel_map channel_map
; /**< The channel map */
418 pa_usec_t duration
; /**< Duration of this entry */
419 uint32_t bytes
; /**< Length of this sample in bytes. \since 0.4 */
420 int lazy
; /**< Non-zero when this is a lazy cache entry. \since 0.5 */
421 const char *filename
; /**< In case this is a lazy cache entry, the filename for the sound file to be loaded on demand. \since 0.5 */
424 /** Callback prototype for pa_context_get_sample_info_by_name() and firends */
425 typedef void (*pa_sample_info_cb_t
)(pa_context
*c
, const pa_sample_info
*i
, int eol
, void *userdata
);
427 /** Get information about a sample by its name */
428 pa_operation
* pa_context_get_sample_info_by_name(pa_context
*c
, const char *name
, pa_sample_info_cb_t cb
, void *userdata
);
430 /** Get information about a sample by its index */
431 pa_operation
* pa_context_get_sample_info_by_index(pa_context
*c
, uint32_t idx
, pa_sample_info_cb_t cb
, void *userdata
);
433 /** Get the complete list of samples stored in the daemon. */
434 pa_operation
* pa_context_get_sample_info_list(pa_context
*c
, pa_sample_info_cb_t cb
, void *userdata
);
436 /** Kill a client. \since 0.5 */
437 pa_operation
* pa_context_kill_client(pa_context
*c
, uint32_t idx
, pa_context_success_cb_t cb
, void *userdata
);
439 /** Kill a sink input. \since 0.5 */
440 pa_operation
* pa_context_kill_sink_input(pa_context
*c
, uint32_t idx
, pa_context_success_cb_t cb
, void *userdata
);
442 /** Kill a source output. \since 0.5 */
443 pa_operation
* pa_context_kill_source_output(pa_context
*c
, uint32_t idx
, pa_context_success_cb_t cb
, void *userdata
);
445 /** Callback prototype for pa_context_load_module() and pa_context_add_autoload() */
446 typedef void (*pa_context_index_cb_t
)(pa_context
*c
, uint32_t idx
, void *userdata
);
448 /** Load a module. \since 0.5 */
449 pa_operation
* pa_context_load_module(pa_context
*c
, const char*name
, const char *argument
, pa_context_index_cb_t cb
, void *userdata
);
451 /** Unload a module. \since 0.5 */
452 pa_operation
* pa_context_unload_module(pa_context
*c
, uint32_t idx
, pa_context_success_cb_t cb
, void *userdata
);
454 /** Type of an autoload entry. \since 0.5 */
455 typedef enum pa_autoload_type
{
456 PA_AUTOLOAD_SINK
= 0,
457 PA_AUTOLOAD_SOURCE
= 1
458 } pa_autoload_type_t
;
460 /** Stores information about autoload entries. \since 0.5 */
461 typedef struct pa_autoload_info
{
462 uint32_t index
; /**< Index of this autoload entry */
463 const char *name
; /**< Name of the sink or source */
464 pa_autoload_type_t type
; /**< Type of the autoload entry */
465 const char *module
; /**< Module name to load */
466 const char *argument
; /**< Argument string for module */
469 /** Callback prototype for pa_context_get_autoload_info_by_name() and firends */
470 typedef void (*pa_autoload_info_cb_t
)(pa_context
*c
, const pa_autoload_info
*i
, int eol
, void *userdata
);
472 /** Get info about a specific autoload entry. \since 0.6 */
473 pa_operation
* pa_context_get_autoload_info_by_name(pa_context
*c
, const char *name
, pa_autoload_type_t type
, pa_autoload_info_cb_t cb
, void *userdata
);
475 /** Get info about a specific autoload entry. \since 0.6 */
476 pa_operation
* pa_context_get_autoload_info_by_index(pa_context
*c
, uint32_t idx
, pa_autoload_info_cb_t cb
, void *userdata
);
478 /** Get the complete list of autoload entries. \since 0.5 */
479 pa_operation
* pa_context_get_autoload_info_list(pa_context
*c
, pa_autoload_info_cb_t cb
, void *userdata
);
481 /** Add a new autoload entry. \since 0.5 */
482 pa_operation
* pa_context_add_autoload(pa_context
*c
, const char *name
, pa_autoload_type_t type
, const char *module
, const char*argument
, pa_context_index_cb_t
, void* userdata
);
484 /** Remove an autoload entry. \since 0.6 */
485 pa_operation
* pa_context_remove_autoload_by_name(pa_context
*c
, const char *name
, pa_autoload_type_t type
, pa_context_success_cb_t cb
, void* userdata
);
487 /** Remove an autoload entry. \since 0.6 */
488 pa_operation
* pa_context_remove_autoload_by_index(pa_context
*c
, uint32_t idx
, pa_context_success_cb_t cb
, void* userdata
);
490 /** Move the specified sink input to a different sink. \since 0.9.5 */
491 pa_operation
* pa_context_move_sink_input_by_name(pa_context
*c
, uint32_t idx
, char *sink_name
, pa_context_success_cb_t cb
, void* userdata
);
493 /** Move the specified sink input to a different sink. \since 0.9.5 */
494 pa_operation
* pa_context_move_sink_input_by_index(pa_context
*c
, uint32_t idx
, uint32_t sink_idx
, pa_context_success_cb_t cb
, void* userdata
);
496 /** Move the specified source output to a different source. \since 0.9.5 */
497 pa_operation
* pa_context_move_source_output_by_name(pa_context
*c
, uint32_t idx
, char *source_name
, pa_context_success_cb_t cb
, void* userdata
);
499 /** Move the specified source output to a different source. \since 0.9.5 */
500 pa_operation
* pa_context_move_source_output_by_index(pa_context
*c
, uint32_t idx
, uint32_t source_idx
, pa_context_success_cb_t cb
, void* userdata
);