agent.h 17.5 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
/*
 * This file is part of the Nice GLib ICE library.
 *
 * (C) 2006, 2007 Collabora Ltd.
 *  Contact: Dafydd Harries
 * (C) 2006, 2007 Nokia Corporation. All rights reserved.
 *  Contact: Kai Vehmanen
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Nice GLib ICE library.
 *
 * The Initial Developers of the Original Code are Collabora Ltd and Nokia
 * Corporation. All Rights Reserved.
 *
 * Contributors:
 *   Dafydd Harries, Collabora Ltd.
26
 *   Kai Vehmanen, Nokia
27 28 29 30 31 32 33 34 35 36 37
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
 * case the provisions of LGPL are applicable instead of those above. If you
 * wish to allow use of your version of this file only under the terms of the
 * LGPL and not to allow others to use your version of this file under the
 * MPL, indicate your decision by deleting the provisions above and replace
 * them with the notice and other provisions required by the LGPL. If you do
 * not delete the provisions above, a recipient may use your version of this
 * file under either the MPL or the LGPL.
 */
Dafydd Harries's avatar
Dafydd Harries committed
38 39 40 41

#ifndef _AGENT_H
#define _AGENT_H

42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105
/**
 * SECTION:agent
 * @short_description:  ICE agent API implementation
 * @see_also: #NiceCandidate
 * @see_also: #NiceAddress
 * @include: agent.h
 * @stability: Stable
 *
 * The #NiceAgent is your main object when using libnice.
 * It is the agent that will take care of everything relating to ICE.
 * It will take care of discovering your local candidates and do
 *  connectivity checks to create a stream of data between you and your peer.
 *
 <example>
   <title>Simple example on how to use libnice</title>
   <programlisting>
   NiceAddress base_addr;
   guint stream_id;
   gchar buffer[] = "hello world!";
   GSList *lcands = NULL;

   // Create a nice agent
   NiceAgent *agent = nice_agent_new (NULL, NICE_COMPATIBILITY_DRAFT19);

   // Specify which local interface to use
   nice_address_set_from_string (&base_addr, "127.0.0.1");
   nice_agent_add_local_address (agent, &base_addr);

   // Connect the signals
   g_signal_connect (G_OBJECT (agent), "candidate-gathering-done",
                     G_CALLBACK (cb_candidate_gathering_done), NULL);
   g_signal_connect (G_OBJECT (lagent), "component-state-changed",
                     G_CALLBACK (cb_component_state_changed), NULL);
   g_signal_connect (G_OBJECT (lagent), "new-selected-pair",
                     G_CALLBACK (cb_new_selected_pair), NULL);

   // Create a new stream with one component and start gathering candidates
   stream_id = nice_agent_add_stream (agent, 1);
   nice_agent_gather_candidates (agent, stream_id);

   // Attach to the component to receive the data
   nice_agent_attach_recv (agent, stream_id, 1, NULL,
                          cb_nice_recv, NULL);

   // ... Wait until the signal candidate-gathering-done is fired ...
   lcands = nice_agent_get_local_candidates(agent, stream_id, 1);

   // ... Send local candidates to the peer and set the peer's remote candidates
   nice_agent_set_remote_candidates (agent, stream_id, 1, rcands);

   // ... Wait until the signal new-selected-pair is fired ...
   // Send our message!
   nice_agent_send (lagent, ls_id, 1, sizeof(buffer), buffer);

   // Anything received will be received through the cb_nice_recv callback

   // Destroy the object
   g_object_unref(agent);

   </programlisting>
 </example>
 */


Dafydd Harries's avatar
Dafydd Harries committed
106
#include <glib-object.h>
107

108 109 110 111 112 113
/**
 * NiceAgent:
 *
 * The #NiceAgent is the main GObject of the libnice library and represents
 * the ICE agent.
 */
114 115
typedef struct _NiceAgent NiceAgent;

116
#include "address.h"
Dafydd Harries's avatar
Dafydd Harries committed
117
#include "candidate.h"
118
#include "debug.h"
119

120

Dafydd Harries's avatar
Dafydd Harries committed
121
G_BEGIN_DECLS
122

Dafydd Harries's avatar
Dafydd Harries committed
123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144
#define NICE_TYPE_AGENT nice_agent_get_type()

#define NICE_AGENT(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
  NICE_TYPE_AGENT, NiceAgent))

#define NICE_AGENT_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST ((klass), \
  NICE_TYPE_AGENT, NiceAgentClass))

#define NICE_IS_AGENT(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
  NICE_TYPE_AGENT))

#define NICE_IS_AGENT_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_TYPE ((klass), \
  NICE_TYPE_AGENT))

#define NICE_AGENT_GET_CLASS(obj) \
  (G_TYPE_INSTANCE_GET_CLASS ((obj), \
  NICE_TYPE_AGENT, NiceAgentClass))

Youness Alaoui's avatar
Youness Alaoui committed
145 146 147 148 149 150 151 152 153 154 155 156 157 158
typedef struct _NiceAgentClass NiceAgentClass;

struct _NiceAgentClass
{
  GObjectClass parent_class;
};


GType nice_agent_get_type (void);


/**
 * NICE_AGENT_MAX_REMOTE_CANDIDATES:
 *
159
 * A hard limit for number for remote candidates. This
Youness Alaoui's avatar
Youness Alaoui committed
160
 * limit is enforced to protect against malevolent remote
161 162 163 164
 * clients.
 */
#define NICE_AGENT_MAX_REMOTE_CANDIDATES    25

Youness Alaoui's avatar
Youness Alaoui committed
165 166 167 168 169 170 171 172 173 174
/**
 * NiceComponentState:
 * @NICE_COMPONENT_STATE_DISCONNECTED: No activity scheduled
 * @NICE_COMPONENT_STATE_GATHERING: Gathering local candidates
 * @NICE_COMPONENT_STATE_CONNECTING: Establishing connectivity
 * @NICE_COMPONENT_STATE_CONNECTED: At least one working candidate pair
 * @NICE_COMPONENT_STATE_READY: ICE concluded, candidate pair selection
 * is now final
 * @NICE_COMPONENT_STATE_FAILED: Connectivity checks have been completed,
 * but connectivity was not established
175
 * @NICE_COMPONENT_STATE_LAST: Dummy state
Youness Alaoui's avatar
Youness Alaoui committed
176 177 178 179
 *
 * An enum representing the state of a component.
 * See #NiceAgent::component-state-changed
 */
180 181
typedef enum
{
Youness Alaoui's avatar
Youness Alaoui committed
182 183 184 185 186 187
  NICE_COMPONENT_STATE_DISCONNECTED,
  NICE_COMPONENT_STATE_GATHERING,
  NICE_COMPONENT_STATE_CONNECTING,
  NICE_COMPONENT_STATE_CONNECTED,
  NICE_COMPONENT_STATE_READY,
  NICE_COMPONENT_STATE_FAILED,
Youness Alaoui's avatar
Youness Alaoui committed
188
  NICE_COMPONENT_STATE_LAST
189 190
} NiceComponentState;

Youness Alaoui's avatar
Youness Alaoui committed
191 192 193 194 195 196 197 198 199 200 201 202 203 204 205

/**
 * NiceComponentType:
 * @NICE_COMPONENT_TYPE_RTP: RTP Component type
 * @NICE_COMPONENT_TYPE_RTCP: RTCP Component type
 *
 * Convenience enum representing the type of a component for use as the
 * component_id for RTP/RTCP usages.
 <example>
   <title>Example of use.</title>
   <programlisting>
   nice_agent_send (agent, stream_id, NICE_COMPONENT_TYPE_RTP, len, buf);
   </programlisting>
  </example>
 */
206 207 208 209 210 211
typedef enum
{
  NICE_COMPONENT_TYPE_RTP = 1,
  NICE_COMPONENT_TYPE_RTCP = 2
} NiceComponentType;

212

Youness Alaoui's avatar
Youness Alaoui committed
213 214 215 216 217
/**
 * NiceCompatibility:
 * @NICE_COMPATIBILITY_DRAFT19: Use compatibility for ICE Draft 19 specs
 * @NICE_COMPATIBILITY_GOOGLE: Use compatibility for Google Talk specs
 * @NICE_COMPATIBILITY_MSN: Use compatibility for MSN Messenger specs
218
 * @NICE_COMPATIBILITY_LAST: Dummy last compatibility mode
Youness Alaoui's avatar
Youness Alaoui committed
219 220 221 222
 *
 * An enum to specify which compatible specifications the #NiceAgent should use.
 * Use with nice_agent_new()
 */
223 224
typedef enum
{
225
  NICE_COMPATIBILITY_DRAFT19 = 0,
226 227
  NICE_COMPATIBILITY_GOOGLE,
  NICE_COMPATIBILITY_MSN,
228 229
  NICE_COMPATIBILITY_WLM2009,
  NICE_COMPATIBILITY_LAST = NICE_COMPATIBILITY_WLM2009
230 231
} NiceCompatibility;

232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251
/**
 * NiceProxyType:
 * @NICE_PROXY_TYPE_NONE: Do not use a proxy
 * @NICE_PROXY_TYPE_SOCKS5: Use a SOCKS5 proxy
 * @NICE_PROXY_TYPE_HTTP: Use an HTTP proxy
 * @NICE_PROXY_TYPE_LAST: Dummy last proxy type
 *
 * An enum to specify which proxy type to use for relaying.
 * Note that the proxies will only be used with TCP TURN relaying.
 * See #NiceAgent:proxy-type
 */
typedef enum
{
  NICE_PROXY_TYPE_NONE = 0,
  NICE_PROXY_TYPE_SOCKS5,
  NICE_PROXY_TYPE_HTTP,
  NICE_PROXY_TYPE_LAST = NICE_PROXY_TYPE_HTTP,
} NiceProxyType;


Youness Alaoui's avatar
Youness Alaoui committed
252 253 254 255 256 257 258 259 260 261 262 263 264
/**
 * NiceAgentRecvFunc:
 * @agent: The #NiceAgent Object
 * @stream_id: The id of the stream
 * @component_id: The id of the component of the stream
 *        which received the data
 * @len: The length of the data
 * @buf: The buffer containing the data received
 * @user_data: The user data set in nice_agent_attach_recv()
 *
 * Callback function when data is received on a component
 *
 */
265 266 267 268
typedef void (*NiceAgentRecvFunc) (
  NiceAgent *agent, guint stream_id, guint component_id, guint len,
  gchar *buf, gpointer user_data);

Dafydd Harries's avatar
Dafydd Harries committed
269

Youness Alaoui's avatar
Youness Alaoui committed
270 271 272 273 274 275
/**
 * nice_agent_new:
 * @ctx: The Glib Mainloop Context to use for timers
 * @compat: The compatibility mode of the agent
 *
 * Create a new #NiceAgent.
276
 * The returned object must be freed with g_object_unref()
Youness Alaoui's avatar
Youness Alaoui committed
277
 *
278
 * Returns: The new agent GObject
Youness Alaoui's avatar
Youness Alaoui committed
279
 */
280
NiceAgent *
281
nice_agent_new (GMainContext *ctx, NiceCompatibility compat);
282

Youness Alaoui's avatar
Youness Alaoui committed
283 284 285 286 287 288 289 290 291 292
/**
 * nice_agent_add_local_address:
 * @agent: The #NiceAgent Object
 * @addr: The address to listen to
 * If the port is 0, then a random port will be chosen by the system
 *
 * Add a local address from which to derive local host candidates
 *
 * Returns: %TRUE on success, %FALSE on fatal (memory allocation) errors
 */
293
gboolean
294
nice_agent_add_local_address (NiceAgent *agent, NiceAddress *addr);
295

Youness Alaoui's avatar
Youness Alaoui committed
296 297 298 299 300 301 302 303 304 305

/**
 * nice_agent_add_stream:
 * @agent: The #NiceAgent Object
 * @n_components: The number of components to add to the stream
 *
 * Adds a data stream to @agent containing @n_components components.
 *
 * Returns: The ID of the new stream, 0 on failure
 **/
Dafydd Harries's avatar
Dafydd Harries committed
306
guint
307 308
nice_agent_add_stream (
  NiceAgent *agent,
309
  guint n_components);
310

Youness Alaoui's avatar
Youness Alaoui committed
311 312 313 314 315 316 317 318
/**
 * nice_agent_remove_stream:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream to remove
 *
 * Remove and free a previously created data stream from @agent
 *
 **/
Dafydd Harries's avatar
Dafydd Harries committed
319 320 321 322 323
void
nice_agent_remove_stream (
  NiceAgent *agent,
  guint stream_id);

Youness Alaoui's avatar
Youness Alaoui committed
324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339
/**
 * nice_agent_set_relay_info:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @component_id: The ID of the component
 * @server_ip: The IP address of the TURN server
 * @server_port: The port of the TURN server
 * @username: The TURN username to use for the allocate
 * @password: The TURN password to use for the allocate
 * @type: The type of relay to use
 *
 * Sets the settings for using a relay server during the candidate discovery.
 *
 * Returns: %TRUE if the TURN settings were accepted.
 * %FALSE if the address was invalid.
 */
340
gboolean nice_agent_set_relay_info(
341 342 343 344 345 346
    NiceAgent *agent,
    guint stream_id,
    guint component_id,
    const gchar *server_ip,
    guint server_port,
    const gchar *username,
347 348
    const gchar *password,
    NiceRelayType type);
349

Youness Alaoui's avatar
Youness Alaoui committed
350 351 352 353 354 355 356 357 358 359 360 361 362 363
/**
 * nice_agent_gather_candidates:
 * @agent: The #NiceAgent Object
 * @stream_id: The id of the stream to start
 *
 * Start the candidate gathering process.
 * Once done, #NiceAgent::candidate-gathering-done is called for the stream
 *
 <note>
   <para>
    Local addresses must be previously set with nice_agent_add_local_address()
   </para>
 </note>
 */
364 365 366 367 368
void
nice_agent_gather_candidates (
  NiceAgent *agent,
  guint stream_id);

Youness Alaoui's avatar
Youness Alaoui committed
369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
/**
 * nice_agent_set_remote_credentials:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @ufrag: NULL-terminated string containing an ICE username fragment
 *    (length must be between 22 and 256 chars)
 * @pwd: NULL-terminated string containing an ICE password
 *    (length must be between 4 and 256 chars)
 *
 * Sets the remote credentials for stream @stream_id.
 *
 <note>
   <para>
     Stream credentials do not override per-candidate credentials if set
   </para>
 </note>
 *
 * Returns: %TRUE on success, %FALSE on error.
 */
388 389 390 391 392 393
gboolean
nice_agent_set_remote_credentials (
  NiceAgent *agent,
  guint stream_id,
  const gchar *ufrag, const gchar *pwd);

Youness Alaoui's avatar
Youness Alaoui committed
394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410


/**
 * nice_agent_get_local_credentials:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @ufrag: a pointer to a NULL-terminated string containing
 * an ICE username fragment [OUT].
 * This string must be freed with g_free()
 * @pwd: a pointer to a NULL-terminated string containing an ICE
 * password [OUT]
 * This string must be freed with g_free()
 *
 * Gets the local credentials for stream @stream_id.
 *
 * Returns: %TRUE on success, %FALSE on error.
 */
411 412 413 414
gboolean
nice_agent_get_local_credentials (
  NiceAgent *agent,
  guint stream_id,
415
  gchar **ufrag, gchar **pwd);
416

Youness Alaoui's avatar
Youness Alaoui committed
417 418 419 420 421 422 423
/**
 * nice_agent_set_remote_candidates:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream the candidates are for
 * @component_id: The ID of the component the candidates are for
 * @candidates: a #GList of #NiceCandidate items describing each candidate to add
 *
Youness Alaoui's avatar
Youness Alaoui committed
424
 * Sets, adds or updates the remote candidates for a component of a stream.
Youness Alaoui's avatar
Youness Alaoui committed
425 426 427
 *
 <note>
   <para>
428
    NICE_AGENT_MAX_REMOTE_CANDIDATES is the absolute maximum limit
Youness Alaoui's avatar
Youness Alaoui committed
429 430 431
    for remote candidates.
   </para>
   <para>
Youness Alaoui's avatar
fix doc  
Youness Alaoui committed
432 433
   You must first call nice_agent_gather_candidates() and wait for the
   #NiceAgent::candidate-gathering-done signale before
Youness Alaoui's avatar
Youness Alaoui committed
434
   calling nice_agent_set_remote_candidates()
Youness Alaoui's avatar
Youness Alaoui committed
435 436 437
   </para>
 </note>
 *
Youness Alaoui's avatar
Youness Alaoui committed
438 439
 * Returns: The number of candidates added, negative on errors (memory allocation
 * or if the local candidates are not done gathering yet)
Youness Alaoui's avatar
Youness Alaoui committed
440
 **/
441
int
442 443 444 445
nice_agent_set_remote_candidates (
  NiceAgent *agent,
  guint stream_id,
  guint component_id,
446
  const GSList *candidates);
447

Youness Alaoui's avatar
Youness Alaoui committed
448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467

/**
 * nice_agent_send:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream to send to
 * @component_id: The ID of the component to send to
 * @len: The length of the buffer to send
 * @buf: The buffer of data to send
 *
 * Sends a data payload over a stream's component.
 *
 <note>
   <para>
     Component state MUST be NICE_COMPONENT_STATE_READY, or as a special case,
     in any state if component was in READY state before and was then restarted
   </para>
 </note>
 *
 * Returns: The number of bytes sent, or negative error code
 */
468
gint
Dafydd Harries's avatar
Dafydd Harries committed
469 470 471 472 473
nice_agent_send (
  NiceAgent *agent,
  guint stream_id,
  guint component_id,
  guint len,
474
  const gchar *buf);
Dafydd Harries's avatar
Dafydd Harries committed
475

Youness Alaoui's avatar
Youness Alaoui committed
476 477 478 479 480 481
/**
 * nice_agent_get_local_candidates:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @component_id: The ID of the component
 *
482 483
 * Retreive from the agent the list of all local candidates
 * for a stream's component
Youness Alaoui's avatar
Youness Alaoui committed
484 485 486 487 488 489 490 491 492 493 494 495 496
 *
 <note>
   <para>
     The caller owns the returned GSList as well as the candidates contained
     within it.
     To get full results, the client should wait for the
     #NiceAgent::candidates-gathering-done signal.
   </para>
 </note>
 *
 * Returns: a #GSList of #NiceCandidate objects representing
 * the local candidates of @agent
 **/
497
GSList *
498
nice_agent_get_local_candidates (
499 500 501
  NiceAgent *agent,
  guint stream_id,
  guint component_id);
Dafydd Harries's avatar
Dafydd Harries committed
502

Youness Alaoui's avatar
Youness Alaoui committed
503 504 505 506 507 508 509 510 511 512 513

/**
 * nice_agent_get_remote_candidates:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @component_id: The ID of the component
 *
 * Get a list of the remote candidates set on a stream's component
 *
 <note>
   <para>
514 515
     The caller owns the returned GSList but not the candidates
     contained within it.
Youness Alaoui's avatar
Youness Alaoui committed
516 517 518
   </para>
   <para>
     The list of remote candidates can change during processing.
519 520
     The client should register for the #NiceAgent::new-remote-candidate signal
     to get notified of new remote candidates.
Youness Alaoui's avatar
Youness Alaoui committed
521 522 523 524 525 526
   </para>
 </note>
 *
 * Returns: a #GSList of #NiceCandidates objects representing
 * the remote candidates set on the @agent
 **/
527 528 529 530 531 532
GSList *
nice_agent_get_remote_candidates (
  NiceAgent *agent,
  guint stream_id,
  guint component_id);

Youness Alaoui's avatar
Youness Alaoui committed
533 534 535 536 537 538 539 540 541 542 543 544
/**
 * nice_agent_restart:
 * @agent: The #NiceAgent Object
 *
 * Restarts the session as defined in ICE draft 19. This function
 * needs to be called both when initiating (ICE spec section 9.1.1.1.
 * "ICE Restarts"), as well as when reacting (spec section 9.2.1.1.
 * "Detecting ICE Restart") to a restart.
 *
 * Returns: %TRUE on success %FALSE on error
 **/
gboolean
545 546 547
nice_agent_restart (
  NiceAgent *agent);

Youness Alaoui's avatar
Youness Alaoui committed
548 549 550 551 552 553 554

/**
 * nice_agent_attach_recv:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of stream
 * @component_id: The ID of the component
 * @ctx: The Glib Mainloop Context to use for listening on the component
555 556
 * @func: The callback function to be called when data is received on
 * the stream's component
Youness Alaoui's avatar
Youness Alaoui committed
557 558
 * @data: user data associated with the callback
 *
559 560
 * Attaches the stream's component's sockets to the Glib Mainloop Context in
 * order to be notified whenever data becomes available for a component.
Youness Alaoui's avatar
Youness Alaoui committed
561 562 563
 *
 * Returns: %TRUE on success, %FALSE if the stream or component IDs are invalid.
 */
564
gboolean
565
nice_agent_attach_recv (
566
  NiceAgent *agent,
567 568
  guint stream_id,
  guint component_id,
569 570 571 572
  GMainContext *ctx,
  NiceAgentRecvFunc func,
  gpointer data);

Youness Alaoui's avatar
Youness Alaoui committed
573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590

/**
 * nice_agent_set_selected_pair:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @component_id: The ID of the component
 * @lfoundation: The local foundation of the candidate to use
 * @rfoundation: The remote foundation of the candidate to use
 *
 * Sets the selected candidate pair for media transmission
 * for a given stream's component. Calling this function will
 * disable all further ICE processing (connection check,
 * state machine updates, etc). Note that keepalives will
 * continue to be sent.
 *
 * Returns: %TRUE on success, %FALSE if the candidate pair cannot be found
 */
gboolean
591 592 593 594 595 596 597
nice_agent_set_selected_pair (
  NiceAgent *agent,
  guint stream_id,
  guint component_id,
  const gchar *lfoundation,
  const gchar *rfoundation);

Youness Alaoui's avatar
Youness Alaoui committed
598 599 600 601 602 603 604 605 606 607 608
/**
 * nice_agent_set_selected_remote_candidate:
 * @agent: The #NiceAgent Object
 * @stream_id: The ID of the stream
 * @component_id: The ID of the component
 * @candidate: The #NiceCandidate to select
 *
 * Sets the selected remote candidate for media transmission
 * for a given stream's component. This is used to force the selection of
 * a specific remote candidate even when connectivity checks are failing
 * (e.g. non-ICE compatible candidates).
609 610
 * Calling this function will disable all further ICE processing
 * (connection check, state machine updates, etc). Note that keepalives will
Youness Alaoui's avatar
Youness Alaoui committed
611 612 613 614
 * continue to be sent.
 *
 * Returns: %TRUE on success, %FALSE on failure
 */
615 616 617 618 619 620 621
gboolean
nice_agent_set_selected_remote_candidate (
  NiceAgent *agent,
  guint stream_id,
  guint component_id,
  NiceCandidate *candidate);

Dafydd Harries's avatar
Dafydd Harries committed
622 623
G_END_DECLS

Dafydd Harries's avatar
Dafydd Harries committed
624 625
#endif /* _AGENT_H */