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asterisk/res/pjproject/pjsip/include/pjsua-lib/pjsua.h

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/* $Id$ */
/*
* Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com)
* Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PJSUA_H__
#define __PJSUA_H__
/**
* @file pjsua.h
* @brief PJSUA API.
*/
/* Include all PJSIP core headers. */
#include <pjsip.h>
/* Include all PJMEDIA headers. */
#include <pjmedia.h>
/* Include all PJMEDIA-CODEC headers. */
#include <pjmedia-codec.h>
/* Videodev too */
#include <pjmedia_videodev.h>
/* Include all PJSIP-UA headers */
#include <pjsip_ua.h>
/* Include all PJSIP-SIMPLE headers */
#include <pjsip_simple.h>
/* Include all PJNATH headers */
#include <pjnath.h>
/* Include all PJLIB-UTIL headers. */
#include <pjlib-util.h>
/* Include all PJLIB headers. */
#include <pjlib.h>
PJ_BEGIN_DECL
/**
* @defgroup PJSUA_LIB PJSUA API - High Level Softphone API
* @brief Very high level API for constructing SIP UA applications.
* @{
*
* @section pjsua_api_intro A SIP User Agent API for C/C++
*
* PJSUA API is very high level API for constructing SIP multimedia user agent
* applications. It wraps together the signaling and media functionalities
* into an easy to use call API, provides account management, buddy
* management, presence, instant messaging, along with multimedia
* features such as conferencing, file streaming, local playback,
* voice recording, and so on.
*
* @subsection pjsua_for_c_cpp C/C++ Binding
* Application must link with <b>pjsua-lib</b> to use this API. In addition,
* this library depends on the following libraries:
* - <b>pjsip-ua</b>,
* - <b>pjsip-simple</b>,
* - <b>pjsip-core</b>,
* - <b>pjmedia</b>,
* - <b>pjmedia-codec</b>,
* - <b>pjlib-util</b>, and
* - <b>pjlib</b>,
*
* so application must also link with these libraries as well. For more
* information, please refer to
* <A HREF="http://www.pjsip.org/using.htm">Getting Started with PJSIP</A>
* page.
*
* @section pjsua_samples
*
* Few samples are provided:
*
- @ref page_pjsip_sample_simple_pjsuaua_c\n
Very simple SIP User Agent with registration, call, and media, using
PJSUA-API, all in under 200 lines of code.
- @ref page_pjsip_samples_pjsua\n
This is the reference implementation for PJSIP and PJMEDIA.
PJSUA is a console based application, designed to be simple enough
to be readble, but powerful enough to demonstrate all features
available in PJSIP and PJMEDIA.\n
* @section root_using_pjsua_lib Using PJSUA API
*
* Please refer to @ref PJSUA_LIB_BASE on how to create and initialize the API.
* And then see the Modules on the bottom of this page for more information
* about specific subject.
*/
/*****************************************************************************
* BASE API
*/
/**
* @defgroup PJSUA_LIB_BASE PJSUA-API Basic API
* @ingroup PJSUA_LIB
* @brief Basic application creation/initialization, logging configuration, etc.
* @{
*
* The base PJSUA API controls PJSUA creation, initialization, and startup, and
* also provides various auxiliary functions.
*
* @section using_pjsua_lib Using PJSUA Library
*
* @subsection creating_pjsua_lib Creating PJSUA
*
* Before anything else, application must create PJSUA by calling
* #pjsua_create().
* This, among other things, will initialize PJLIB, which is crucial before
* any PJLIB functions can be called, PJLIB-UTIL, and create a SIP endpoint.
*
* After this function is called, application can create a memory pool (with
* #pjsua_pool_create()) and read configurations from command line or file to
* build the settings to initialize PJSUA below.
*
* @subsection init_pjsua_lib Initializing PJSUA
*
* After PJSUA is created, application can initialize PJSUA by calling
* #pjsua_init(). This function takes several optional configuration settings
* in the argument, if application wants to set them.
*
* @subsubsection init_pjsua_lib_c_cpp PJSUA-LIB Initialization (in C)
* Sample code to initialize PJSUA in C code:
\code
#include <pjsua-lib/pjsua.h>
#define THIS_FILE __FILE__
static pj_status_t app_init(void)
{
pjsua_config ua_cfg;
pjsua_logging_config log_cfg;
pjsua_media_config media_cfg;
pj_status_t status;
// Must create pjsua before anything else!
status = pjsua_create();
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error initializing pjsua", status);
return status;
}
// Initialize configs with default settings.
pjsua_config_default(&ua_cfg);
pjsua_logging_config_default(&log_cfg);
pjsua_media_config_default(&media_cfg);
// At the very least, application would want to override
// the call callbacks in pjsua_config:
ua_cfg.cb.on_incoming_call = ...
ua_cfg.cb.on_call_state = ..
...
// Customize other settings (or initialize them from application specific
// configuration file):
...
// Initialize pjsua
status = pjsua_init(&ua_cfg, &log_cfg, &media_cfg);
if (status != PJ_SUCCESS) {
pjsua_perror(THIS_FILE, "Error initializing pjsua", status);
return status;
}
.
...
}
\endcode
*
*
* @subsection other_init_pjsua_lib Other Initialization
*
* After PJSUA is initialized with #pjsua_init(), application will normally
* need/want to perform the following tasks:
*
* - create SIP transport with #pjsua_transport_create(). Application would
* to call #pjsua_transport_create() for each transport types that it
* wants to support (for example, UDP, TCP, and TLS). Please see
* @ref PJSUA_LIB_TRANSPORT section for more info.
* - create one or more SIP accounts with #pjsua_acc_add() or
* #pjsua_acc_add_local(). The SIP account is used for registering with
* the SIP server, if any. Please see @ref PJSUA_LIB_ACC for more info.
* - add one or more buddies with #pjsua_buddy_add(). Please see
* @ref PJSUA_LIB_BUDDY section for more info.
* - optionally configure the sound device, codec settings, and other
* media settings. Please see @ref PJSUA_LIB_MEDIA for more info.
*
*
* @subsection starting_pjsua_lib Starting PJSUA
*
* After all initializations have been done, application must call
* #pjsua_start() to start PJSUA. This function will check that all settings
* have been properly configured, and apply default settings when they haven't,
* or report error status when it is unable to recover from missing settings.
*
* Most settings can be changed during run-time. For example, application
* may add, modify, or delete accounts, buddies, or change media settings
* during run-time.
*
* @subsubsection starting_pjsua_lib_c C Example for Starting PJSUA
* Sample code:
\code
static pj_status_t app_run(void)
{
pj_status_t status;
// Start pjsua
status = pjsua_start();
if (status != PJ_SUCCESS) {
pjsua_destroy();
pjsua_perror(THIS_FILE, "Error starting pjsua", status);
return status;
}
// Run application loop
while (1) {
char choice[10];
printf("Select menu: ");
fgets(choice, sizeof(choice), stdin);
...
}
}
\endcode
*/
/** Constant to identify invalid ID for all sorts of IDs. */
#define PJSUA_INVALID_ID (-1)
/** Disabled features temporarily for media reorganization */
#define DISABLED_FOR_TICKET_1185 0
/** Call identification */
typedef int pjsua_call_id;
/** Account identification */
typedef int pjsua_acc_id;
/** Buddy identification */
typedef int pjsua_buddy_id;
/** File player identification */
typedef int pjsua_player_id;
/** File recorder identification */
typedef int pjsua_recorder_id;
/** Conference port identification */
typedef int pjsua_conf_port_id;
/** Opaque declaration for server side presence subscription */
typedef struct pjsua_srv_pres pjsua_srv_pres;
/** Forward declaration for pjsua_msg_data */
typedef struct pjsua_msg_data pjsua_msg_data;
/**
* Maximum proxies in account.
*/
#ifndef PJSUA_ACC_MAX_PROXIES
# define PJSUA_ACC_MAX_PROXIES 8
#endif
/**
* Default value of SRTP mode usage. Valid values are PJMEDIA_SRTP_DISABLED,
* PJMEDIA_SRTP_OPTIONAL, and PJMEDIA_SRTP_MANDATORY.
*/
#ifndef PJSUA_DEFAULT_USE_SRTP
#define PJSUA_DEFAULT_USE_SRTP PJMEDIA_SRTP_DISABLED
#endif
/**
* Default value of secure signaling requirement for SRTP.
* Valid values are:
* 0: SRTP does not require secure signaling
* 1: SRTP requires secure transport such as TLS
* 2: SRTP requires secure end-to-end transport (SIPS)
*/
#ifndef PJSUA_DEFAULT_SRTP_SECURE_SIGNALING
#define PJSUA_DEFAULT_SRTP_SECURE_SIGNALING 1
#endif
/**
* Controls whether PJSUA-LIB should add ICE media feature tag
* parameter (the ";+sip.ice" parameter) to Contact header if ICE
* is enabled in the config.
*
* Default: 1
*/
#ifndef PJSUA_ADD_ICE_TAGS
# define PJSUA_ADD_ICE_TAGS 1
#endif
/**
* Timeout value used to acquire mutex lock on a particular call.
*
* Default: 2000 ms
*/
#ifndef PJSUA_ACQUIRE_CALL_TIMEOUT
# define PJSUA_ACQUIRE_CALL_TIMEOUT 2000
#endif
/**
* Is video enabled.
*/
#ifndef PJSUA_HAS_VIDEO
# define PJSUA_HAS_VIDEO PJMEDIA_HAS_VIDEO
#endif
/**
* Interval between two keyframe requests, in milliseconds.
*
* Default: 3000 ms
*/
#ifndef PJSUA_VID_REQ_KEYFRAME_INTERVAL
# define PJSUA_VID_REQ_KEYFRAME_INTERVAL 3000
#endif
/**
* This enumeration represents pjsua state.
*/
typedef enum pjsua_state
{
/**
* The library has not been initialized.
*/
PJSUA_STATE_NULL,
/**
* After pjsua_create() is called but before pjsua_init() is called.
*/
PJSUA_STATE_CREATED,
/**
* After pjsua_init() is called but before pjsua_start() is called.
*/
PJSUA_STATE_INIT,
/**
* After pjsua_start() is called but before everything is running.
*/
PJSUA_STATE_STARTING,
/**
* After pjsua_start() is called and before pjsua_destroy() is called.
*/
PJSUA_STATE_RUNNING,
/**
* After pjsua_destroy() is called but before the function returns.
*/
PJSUA_STATE_CLOSING
} pjsua_state;
/**
* Logging configuration, which can be (optionally) specified when calling
* #pjsua_init(). Application must call #pjsua_logging_config_default() to
* initialize this structure with the default values.
*/
typedef struct pjsua_logging_config
{
/**
* Log incoming and outgoing SIP message? Yes!
*/
pj_bool_t msg_logging;
/**
* Input verbosity level. Value 5 is reasonable.
*/
unsigned level;
/**
* Verbosity level for console. Value 4 is reasonable.
*/
unsigned console_level;
/**
* Log decoration.
*/
unsigned decor;
/**
* Optional log filename.
*/
pj_str_t log_filename;
/**
* Additional flags to be given to #pj_file_open() when opening
* the log file. By default, the flag is PJ_O_WRONLY. Application
* may set PJ_O_APPEND here so that logs are appended to existing
* file instead of overwriting it.
*
* Default is 0.
*/
unsigned log_file_flags;
/**
* Optional callback function to be called to write log to
* application specific device. This function will be called for
* log messages on input verbosity level.
*/
void (*cb)(int level, const char *data, int len);
} pjsua_logging_config;
/**
* Use this function to initialize logging config.
*
* @param cfg The logging config to be initialized.
*/
PJ_DECL(void) pjsua_logging_config_default(pjsua_logging_config *cfg);
/**
* Use this function to duplicate logging config.
*
* @param pool Pool to use.
* @param dst Destination config.
* @param src Source config.
*/
PJ_DECL(void) pjsua_logging_config_dup(pj_pool_t *pool,
pjsua_logging_config *dst,
const pjsua_logging_config *src);
/**
* Structure to be passed on MWI callback.
*/
typedef struct pjsua_mwi_info
{
pjsip_evsub *evsub; /**< Event subscription session, for
reference. */
pjsip_rx_data *rdata; /**< The received NOTIFY request. */
} pjsua_mwi_info;
/**
* Structure to be passed on registration callback.
*/
typedef struct pjsua_reg_info
{
struct pjsip_regc_cbparam *cbparam; /**< Parameters returned by
registration callback. */
} pjsua_reg_info;
/**
* Enumeration of media transport state types.
*/
typedef enum pjsua_med_tp_st
{
/** Null, this is the state before media transport is created. */
PJSUA_MED_TP_NULL,
/**
* Just before media transport is created, which can finish
* asynchronously later.
*/
PJSUA_MED_TP_CREATING,
/** Media transport creation is completed, but not initialized yet. */
PJSUA_MED_TP_IDLE,
/** Initialized (media_create() has been called). */
PJSUA_MED_TP_INIT,
/** Running (media_start() has been called). */
PJSUA_MED_TP_RUNNING,
/** Disabled (transport is initialized, but media is being disabled). */
PJSUA_MED_TP_DISABLED
} pjsua_med_tp_st;
/**
* Structure to be passed on media transport state callback.
*/
typedef struct pjsua_med_tp_state_info
{
/**
* The media index.
*/
unsigned med_idx;
/**
* The media transport state
*/
pjsua_med_tp_st state;
/**
* The last error code related to the media transport state.
*/
pj_status_t status;
/**
* Optional SIP error code.
*/
int sip_err_code;
/**
* Optional extended info, the content is specific for each transport type.
*/
void *ext_info;
} pjsua_med_tp_state_info;
/**
* Type of callback to be called when media transport state is changed.
*
* @param call_id The call ID.
* @param info The media transport state info.
*
* @return The callback must return PJ_SUCCESS at the moment.
*/
typedef pj_status_t
(*pjsua_med_tp_state_cb)(pjsua_call_id call_id,
const pjsua_med_tp_state_info *info);
/**
* This enumeration specifies the options for custom media transport creation.
*/
typedef enum pjsua_create_media_transport_flag
{
/**
* This flag indicates that the media transport must also close its
* "member" or "child" transport when pjmedia_transport_close() is
* called. If this flag is not specified, then the media transport
* must not call pjmedia_transport_close() of its member transport.
*/
PJSUA_MED_TP_CLOSE_MEMBER = 1
} pjsua_create_media_transport_flag;
/**
* Call settings.
*/
typedef struct pjsua_call_setting
{
/**
* Bitmask of #pjsua_call_flag constants.
*
* Default: 0
*/
unsigned flag;
/**
* This flag controls what methods to request keyframe are allowed on
* the call. Value is bitmask of #pjsua_vid_req_keyframe_method.
*/
unsigned req_keyframe_method;
/**
* Number of simultaneous active audio streams for this call. Setting
* this to zero will disable audio in this call.
*
* Default: 1
*/
unsigned aud_cnt;
/**
* Number of simultaneous active video streams for this call. Setting
* this to zero will disable video in this call.
*
* Default: 1 (if video feature is enabled, otherwise it is zero)
*/
unsigned vid_cnt;
} pjsua_call_setting;
/**
* This structure describes application callback to receive various event
* notification from PJSUA-API. All of these callbacks are OPTIONAL,
* although definitely application would want to implement some of
* the important callbacks (such as \a on_incoming_call).
*/
typedef struct pjsua_callback
{
/**
* Notify application when call state has changed.
* Application may then query the call info to get the
* detail call states by calling pjsua_call_get_info() function.
*
* @param call_id The call index.
* @param e Event which causes the call state to change.
*/
void (*on_call_state)(pjsua_call_id call_id, pjsip_event *e);
/**
* Notify application on incoming call.
*
* @param acc_id The account which match the incoming call.
* @param call_id The call id that has just been created for
* the call.
* @param rdata The incoming INVITE request.
*/
void (*on_incoming_call)(pjsua_acc_id acc_id, pjsua_call_id call_id,
pjsip_rx_data *rdata);
/**
* This is a general notification callback which is called whenever
* a transaction within the call has changed state. Application can
* implement this callback for example to monitor the state of
* outgoing requests, or to answer unhandled incoming requests
* (such as INFO) with a final response.
*
* @param call_id Call identification.
* @param tsx The transaction which has changed state.
* @param e Transaction event that caused the state change.
*/
void (*on_call_tsx_state)(pjsua_call_id call_id,
pjsip_transaction *tsx,
pjsip_event *e);
/**
* Notify application when media state in the call has changed.
* Normal application would need to implement this callback, e.g.
* to connect the call's media to sound device. When ICE is used,
* this callback will also be called to report ICE negotiation
* failure.
*
* @param call_id The call index.
*/
void (*on_call_media_state)(pjsua_call_id call_id);
/**
* Notify application when a call has just created a local SDP (for
* initial or subsequent SDP offer/answer). Application can implement
* this callback to modify the SDP, before it is being sent and/or
* negotiated with remote SDP, for example to apply per account/call
* basis codecs priority or to add custom/proprietary SDP attributes.
*
* @param call_id The call index.
* @param sdp The SDP has just been created.
* @param pool The pool instance, application should use this pool
* to modify the SDP.
* @param rem_sdp The remote SDP, will be NULL if local is SDP offerer.
*/
void (*on_call_sdp_created)(pjsua_call_id call_id,
pjmedia_sdp_session *sdp,
pj_pool_t *pool,
const pjmedia_sdp_session *rem_sdp);
/**
* Notify application when media session is created and before it is
* registered to the conference bridge. Application may return different
* media port if it has added media processing port to the stream. This
* media port then will be added to the conference bridge instead.
*
* @param call_id Call identification.
* @param strm Media stream.
* @param stream_idx Stream index in the media session.
* @param p_port On input, it specifies the media port of the
* stream. Application may modify this pointer to
* point to different media port to be registered
* to the conference bridge.
*/
void (*on_stream_created)(pjsua_call_id call_id,
pjmedia_stream *strm,
unsigned stream_idx,
pjmedia_port **p_port);
/**
* Notify application when media session has been unregistered from the
* conference bridge and about to be destroyed.
*
* @param call_id Call identification.
* @param strm Media stream.
* @param stream_idx Stream index in the media session.
*/
void (*on_stream_destroyed)(pjsua_call_id call_id,
pjmedia_stream *strm,
unsigned stream_idx);
/**
* Notify application upon incoming DTMF digits.
*
* @param call_id The call index.
* @param digit DTMF ASCII digit.
*/
void (*on_dtmf_digit)(pjsua_call_id call_id, int digit);
/**
* Notify application on call being transfered (i.e. REFER is received).
* Application can decide to accept/reject transfer request
* by setting the code (default is 202). When this callback
* is not defined, the default behavior is to accept the
* transfer. See also on_call_transfer_request2() callback for
* the version with \a pjsua_call_setting in the argument list.
*
* @param call_id The call index.
* @param dst The destination where the call will be
* transfered to.
* @param code Status code to be returned for the call transfer
* request. On input, it contains status code 200.
*/
void (*on_call_transfer_request)(pjsua_call_id call_id,
const pj_str_t *dst,
pjsip_status_code *code);
/**
* Notify application on call being transfered (i.e. REFER is received).
* Application can decide to accept/reject transfer request
* by setting the code (default is 202). When this callback
* is not defined, the default behavior is to accept the
* transfer.
*
* @param call_id The call index.
* @param dst The destination where the call will be
* transfered to.
* @param code Status code to be returned for the call transfer
* request. On input, it contains status code 200.
* @param opt The current call setting, application can update
* this setting for the call being transfered.
*/
void (*on_call_transfer_request2)(pjsua_call_id call_id,
const pj_str_t *dst,
pjsip_status_code *code,
pjsua_call_setting *opt);
/**
* Notify application of the status of previously sent call
* transfer request. Application can monitor the status of the
* call transfer request, for example to decide whether to
* terminate existing call.
*
* @param call_id Call ID.
* @param st_code Status progress of the transfer request.
* @param st_text Status progress text.
* @param final If non-zero, no further notification will
* be reported. The st_code specified in
* this callback is the final status.
* @param p_cont Initially will be set to non-zero, application
* can set this to FALSE if it no longer wants
* to receie further notification (for example,
* after it hangs up the call).
*/
void (*on_call_transfer_status)(pjsua_call_id call_id,
int st_code,
const pj_str_t *st_text,
pj_bool_t final,
pj_bool_t *p_cont);
/**
* Notify application about incoming INVITE with Replaces header.
* Application may reject the request by setting non-2xx code.
* See also on_call_replace_request2() callback for the version
* with \a pjsua_call_setting in the argument list.
*
* @param call_id The call ID to be replaced.
* @param rdata The incoming INVITE request to replace the call.
* @param st_code Status code to be set by application. Application
* should only return a final status (200-699).
* @param st_text Optional status text to be set by application.
*/
void (*on_call_replace_request)(pjsua_call_id call_id,
pjsip_rx_data *rdata,
int *st_code,
pj_str_t *st_text);
/**
* Notify application about incoming INVITE with Replaces header.
* Application may reject the request by setting non-2xx code.
*
* @param call_id The call ID to be replaced.
* @param rdata The incoming INVITE request to replace the call.
* @param st_code Status code to be set by application. Application
* should only return a final status (200-699).
* @param st_text Optional status text to be set by application.
* @param opt The current call setting, application can update
* this setting for the call being replaced.
*/
void (*on_call_replace_request2)(pjsua_call_id call_id,
pjsip_rx_data *rdata,
int *st_code,
pj_str_t *st_text,
pjsua_call_setting *opt);
/**
* Notify application that an existing call has been replaced with
* a new call. This happens when PJSUA-API receives incoming INVITE
* request with Replaces header.
*
* After this callback is called, normally PJSUA-API will disconnect
* \a old_call_id and establish \a new_call_id.
*
* @param old_call_id Existing call which to be replaced with the
* new call.
* @param new_call_id The new call.
* @param rdata The incoming INVITE with Replaces request.
*/
void (*on_call_replaced)(pjsua_call_id old_call_id,
pjsua_call_id new_call_id);
/**
* Notify application when call has received new offer from remote
* (i.e. re-INVITE/UPDATE with SDP is received). Application can
* decide to accept/reject the offer by setting the code (default
* is 200). If the offer is accepted, application can update the
* call setting to be applied in the answer. When this callback is
* not defined, the default behavior is to accept the offer using
* current call setting.
*
* @param call_id The call index.
* @param offer The new offer received.
* @param reserved Reserved param, currently not used.
* @param code Status code to be returned for answering the
* offer. On input, it contains status code 200.
* Currently, valid values are only 200 and 488.
* @param opt The current call setting, application can update
* this setting for answering the offer.
*/
void (*on_call_rx_offer)(pjsua_call_id call_id,
const pjmedia_sdp_session *offer,
void *reserved,
pjsip_status_code *code,
pjsua_call_setting *opt);
/**
* Notify application when registration or unregistration has been
* initiated. Note that this only notifies the initial registration
* and unregistration. Once registration session is active, subsequent
* refresh will not cause this callback to be called.
*
* @param acc_id The account ID.
* @param renew Non-zero for registration and zero for
* unregistration.
*/
void (*on_reg_started)(pjsua_acc_id acc_id, pj_bool_t renew);
/**
* Notify application when registration status has changed.
* Application may then query the account info to get the
* registration details.
*
* @param acc_id The account ID.
*/
void (*on_reg_state)(pjsua_acc_id acc_id);
/**
* Notify application when registration status has changed.
* Application may inspect the registration info to get the
* registration status details.
*
* @param acc_id The account ID.
* @param info The registration info.
*/
void (*on_reg_state2)(pjsua_acc_id acc_id, pjsua_reg_info *info);
/**
* Notification when incoming SUBSCRIBE request is received. Application
* may use this callback to authorize the incoming subscribe request
* (e.g. ask user permission if the request should be granted).
*
* If this callback is not implemented, all incoming presence subscription
* requests will be accepted.
*
* If this callback is implemented, application has several choices on
* what to do with the incoming request:
* - it may reject the request immediately by specifying non-200 class
* final response in the \a code argument.
* - it may immediately accept the request by specifying 200 as the
* \a code argument. This is the default value if application doesn't
* set any value to the \a code argument. In this case, the library
* will automatically send NOTIFY request upon returning from this
* callback.
* - it may delay the processing of the request, for example to request
* user permission whether to accept or reject the request. In this
* case, the application MUST set the \a code argument to 202, and
* later calls #pjsua_pres_notify() to accept or reject the
* subscription request.
*
* Any \a code other than 200 and 202 will be treated as 200.
*
* Application MUST return from this callback immediately (e.g. it must
* not block in this callback while waiting for user confirmation).
*
* @param srv_pres Server presence subscription instance. If
* application delays the acceptance of the request,
* it will need to specify this object when calling
* #pjsua_pres_notify().
* @param acc_id Account ID most appropriate for this request.
* @param buddy_id ID of the buddy matching the sender of the
* request, if any, or PJSUA_INVALID_ID if no
* matching buddy is found.
* @param from The From URI of the request.
* @param rdata The incoming request.
* @param code The status code to respond to the request. The
* default value is 200. Application may set this
* to other final status code to accept or reject
* the request.
* @param reason The reason phrase to respond to the request.
* @param msg_data If the application wants to send additional
* headers in the response, it can put it in this
* parameter.
*/
void (*on_incoming_subscribe)(pjsua_acc_id acc_id,
pjsua_srv_pres *srv_pres,
pjsua_buddy_id buddy_id,
const pj_str_t *from,
pjsip_rx_data *rdata,
pjsip_status_code *code,
pj_str_t *reason,
pjsua_msg_data *msg_data);
/**
* Notification when server side subscription state has changed.
* This callback is optional as application normally does not need
* to do anything to maintain server side presence subscription.
*
* @param acc_id The account ID.
* @param srv_pres Server presence subscription object.
* @param remote_uri Remote URI string.
* @param state New subscription state.
* @param event PJSIP event that triggers the state change.
*/
void (*on_srv_subscribe_state)(pjsua_acc_id acc_id,
pjsua_srv_pres *srv_pres,
const pj_str_t *remote_uri,
pjsip_evsub_state state,
pjsip_event *event);
/**
* Notify application when the buddy state has changed.
* Application may then query the buddy into to get the details.
*
* @param buddy_id The buddy id.
*/
void (*on_buddy_state)(pjsua_buddy_id buddy_id);
/**
* Notify application when the state of client subscription session
* associated with a buddy has changed. Application may use this
* callback to retrieve more detailed information about the state
* changed event.
*
* @param buddy_id The buddy id.
* @param sub Event subscription session.
* @param event The event which triggers state change event.
*/
void (*on_buddy_evsub_state)(pjsua_buddy_id buddy_id,
pjsip_evsub *sub,
pjsip_event *event);
/**
* Notify application on incoming pager (i.e. MESSAGE request).
* Argument call_id will be -1 if MESSAGE request is not related to an
* existing call.
*
* See also \a on_pager2() callback for the version with \a pjsip_rx_data
* passed as one of the argument.
*
* @param call_id Containts the ID of the call where the IM was
* sent, or PJSUA_INVALID_ID if the IM was sent
* outside call context.
* @param from URI of the sender.
* @param to URI of the destination message.
* @param contact The Contact URI of the sender, if present.
* @param mime_type MIME type of the message.
* @param body The message content.
*/
void (*on_pager)(pjsua_call_id call_id, const pj_str_t *from,
const pj_str_t *to, const pj_str_t *contact,
const pj_str_t *mime_type, const pj_str_t *body);
/**
* This is the alternative version of the \a on_pager() callback with
* \a pjsip_rx_data argument.
*
* @param call_id Containts the ID of the call where the IM was
* sent, or PJSUA_INVALID_ID if the IM was sent
* outside call context.
* @param from URI of the sender.
* @param to URI of the destination message.
* @param contact The Contact URI of the sender, if present.
* @param mime_type MIME type of the message.
* @param body The message content.
* @param rdata The incoming MESSAGE request.
* @param acc_id Account ID most suitable for this message.
*/
void (*on_pager2)(pjsua_call_id call_id, const pj_str_t *from,
const pj_str_t *to, const pj_str_t *contact,
const pj_str_t *mime_type, const pj_str_t *body,
pjsip_rx_data *rdata, pjsua_acc_id acc_id);
/**
* Notify application about the delivery status of outgoing pager
* request. See also on_pager_status2() callback for the version with
* \a pjsip_rx_data in the argument list.
*
* @param call_id Containts the ID of the call where the IM was
* sent, or PJSUA_INVALID_ID if the IM was sent
* outside call context.
* @param to Destination URI.
* @param body Message body.
* @param user_data Arbitrary data that was specified when sending
* IM message.
* @param status Delivery status.
* @param reason Delivery status reason.
*/
void (*on_pager_status)(pjsua_call_id call_id,
const pj_str_t *to,
const pj_str_t *body,
void *user_data,
pjsip_status_code status,
const pj_str_t *reason);
/**
* Notify application about the delivery status of outgoing pager
* request.
*
* @param call_id Containts the ID of the call where the IM was
* sent, or PJSUA_INVALID_ID if the IM was sent
* outside call context.
* @param to Destination URI.
* @param body Message body.
* @param user_data Arbitrary data that was specified when sending
* IM message.
* @param status Delivery status.
* @param reason Delivery status reason.
* @param tdata The original MESSAGE request.
* @param rdata The incoming MESSAGE response, or NULL if the
* message transaction fails because of time out
* or transport error.
* @param acc_id Account ID from this the instant message was
* send.
*/
void (*on_pager_status2)(pjsua_call_id call_id,
const pj_str_t *to,
const pj_str_t *body,
void *user_data,
pjsip_status_code status,
const pj_str_t *reason,
pjsip_tx_data *tdata,
pjsip_rx_data *rdata,
pjsua_acc_id acc_id);
/**
* Notify application about typing indication.
*
* @param call_id Containts the ID of the call where the IM was
* sent, or PJSUA_INVALID_ID if the IM was sent
* outside call context.
* @param from URI of the sender.
* @param to URI of the destination message.
* @param contact The Contact URI of the sender, if present.
* @param is_typing Non-zero if peer is typing, or zero if peer
* has stopped typing a message.
*/
void (*on_typing)(pjsua_call_id call_id, const pj_str_t *from,
const pj_str_t *to, const pj_str_t *contact,
pj_bool_t is_typing);
/**
* Notify application about typing indication.
*
* @param call_id Containts the ID of the call where the IM was
* sent, or PJSUA_INVALID_ID if the IM was sent
* outside call context.
* @param from URI of the sender.
* @param to URI of the destination message.
* @param contact The Contact URI of the sender, if present.
* @param is_typing Non-zero if peer is typing, or zero if peer
* has stopped typing a message.
* @param rdata The received request.
* @param acc_id Account ID most suitable for this message.
*/
void (*on_typing2)(pjsua_call_id call_id, const pj_str_t *from,
const pj_str_t *to, const pj_str_t *contact,
pj_bool_t is_typing, pjsip_rx_data *rdata,
pjsua_acc_id acc_id);
/**
* Callback when the library has finished performing NAT type
* detection.
*
* @param res NAT detection result.
*/
void (*on_nat_detect)(const pj_stun_nat_detect_result *res);
/**
* This callback is called when the call is about to resend the
* INVITE request to the specified target, following the previously
* received redirection response.
*
* Application may accept the redirection to the specified target
* (the default behavior if this callback is implemented), reject
* this target only and make the session continue to try the next
* target in the list if such target exists, stop the whole
* redirection process altogether and cause the session to be
* disconnected, or defer the decision to ask for user confirmation.
*
* This callback is optional. If this callback is not implemented,
* the default behavior is to NOT follow the redirection response.
*
* @param call_id The call ID.
* @param target The current target to be tried.
* @param e The event that caused this callback to be called.
* This could be the receipt of 3xx response, or
* 4xx/5xx response received for the INVITE sent to
* subsequent targets, or NULL if this callback is
* called from within #pjsua_call_process_redirect()
* context.
*
* @return Action to be performed for the target. Set this
* parameter to one of the value below:
* - PJSIP_REDIRECT_ACCEPT: immediately accept the
* redirection (default value). When set, the
* call will immediately resend INVITE request
* to the target.
* - PJSIP_REDIRECT_REJECT: immediately reject this
* target. The call will continue retrying with
* next target if present, or disconnect the call
* if there is no more target to try.
* - PJSIP_REDIRECT_STOP: stop the whole redirection
* process and immediately disconnect the call. The
* on_call_state() callback will be called with
* PJSIP_INV_STATE_DISCONNECTED state immediately
* after this callback returns.
* - PJSIP_REDIRECT_PENDING: set to this value if
* no decision can be made immediately (for example
* to request confirmation from user). Application
* then MUST call #pjsua_call_process_redirect()
* to either accept or reject the redirection upon
* getting user decision.
*/
pjsip_redirect_op (*on_call_redirected)(pjsua_call_id call_id,
const pjsip_uri *target,
const pjsip_event *e);
/**
* This callback is called when a NOTIFY request for message summary /
* message waiting indication is received.
*
* @param acc_id The account ID.
* @param mwi_info Structure containing details of the event,
* including the received NOTIFY request in the
* \a rdata field.
*/
void (*on_mwi_info)(pjsua_acc_id acc_id, pjsua_mwi_info *mwi_info);
/**
* This callback is called when transport state is changed. See also
* #pjsip_tp_state_callback.
*/
pjsip_tp_state_callback on_transport_state;
/**
* This callback is called when media transport state is changed. See
* also #pjsua_med_tp_state_cb.
*/
pjsua_med_tp_state_cb on_call_media_transport_state;
/**
* This callback is called to report error in ICE media transport.
* Currently it is used to report TURN Refresh error.
*
* @param index Transport index.
* @param op Operation which trigger the failure.
* @param status Error status.
* @param param Additional info about the event. Currently this will
* always be set to NULL.
*/
void (*on_ice_transport_error)(int index, pj_ice_strans_op op,
pj_status_t status, void *param);
/**
* Callback when the sound device is about to be opened or closed.
* This callback will be called even when null sound device or no
* sound device is configured by the application (i.e. the
* #pjsua_set_null_snd_dev() and #pjsua_set_no_snd_dev() APIs).
* This API is mostly useful when the application wants to manage
* the sound device by itself (i.e. with #pjsua_set_no_snd_dev()),
* to get notified when it should open or close the sound device.
*
* @param operation The value will be set to 0 to signal that sound
* device is about to be closed, and 1 to be opened.
*
* @return The callback must return PJ_SUCCESS at the moment.
*/
pj_status_t (*on_snd_dev_operation)(int operation);
/**
* Notification about media events such as video notifications. This
* callback will most likely be called from media threads, thus
* application must not perform heavy processing in this callback.
* Especially, application must not destroy the call or media in this
* callback. If application needs to perform more complex tasks to
* handle the event, it should post the task to another thread.
*
* @param call_id The call id.
* @param med_idx The media stream index.
* @param event The media event.
*/
void (*on_call_media_event)(pjsua_call_id call_id,
unsigned med_idx,
pjmedia_event *event);
/**
* This callback can be used by application to implement custom media
* transport adapter for the call, or to replace the media transport
* with something completely new altogether.
*
* This callback is called when a new call is created. The library has
* created a media transport for the call, and it is provided as the
* \a base_tp argument of this callback. Upon returning, the callback
* must return an instance of media transport to be used by the call.
*
* @param call_id Call ID
* @param media_idx The media index in the SDP for which this media
* transport will be used.
* @param base_tp The media transport which otherwise will be
* used by the call has this callback not been
* implemented.
* @param flags Bitmask from pjsua_create_media_transport_flag.
*
* @return The callback must return an instance of media
* transport to be used by the call.
*/
pjmedia_transport* (*on_create_media_transport)(pjsua_call_id call_id,
unsigned media_idx,
pjmedia_transport *base_tp,
unsigned flags);
} pjsua_callback;
/**
* This enumeration specifies the usage of SIP Session Timers extension.
*/
typedef enum pjsua_sip_timer_use
{
/**
* When this flag is specified, Session Timers will not be used in any
* session, except it is explicitly required in the remote request.
*/
PJSUA_SIP_TIMER_INACTIVE,
/**
* When this flag is specified, Session Timers will be used in all
* sessions whenever remote supports and uses it.
*/
PJSUA_SIP_TIMER_OPTIONAL,
/**
* When this flag is specified, Session Timers support will be
* a requirement for the remote to be able to establish a session.
*/
PJSUA_SIP_TIMER_REQUIRED,
/**
* When this flag is specified, Session Timers will always be used
* in all sessions, regardless whether remote supports/uses it or not.
*/
PJSUA_SIP_TIMER_ALWAYS
} pjsua_sip_timer_use;
/**
* This constants controls the use of 100rel extension.
*/
typedef enum pjsua_100rel_use
{
/**
* Not used. For UAC, support for 100rel will be indicated in Supported
* header so that peer can opt to use it if it wants to. As UAS, this
* option will NOT cause 100rel to be used even if UAC indicates that
* it supports this feature.
*/
PJSUA_100REL_NOT_USED,
/**
* Mandatory. UAC will place 100rel in Require header, and UAS will
* reject incoming calls unless it has 100rel in Supported header.
*/
PJSUA_100REL_MANDATORY,
/**
* Optional. Similar to PJSUA_100REL_NOT_USED, except that as UAS, this
* option will cause 100rel to be used if UAC indicates that it supports it.
*/
PJSUA_100REL_OPTIONAL
} pjsua_100rel_use;
/**
* This structure describes the settings to control the API and
* user agent behavior, and can be specified when calling #pjsua_init().
* Before setting the values, application must call #pjsua_config_default()
* to initialize this structure with the default values.
*/
typedef struct pjsua_config
{
/**
* Maximum calls to support (default: 4). The value specified here
* must be smaller than the compile time maximum settings
* PJSUA_MAX_CALLS, which by default is 32. To increase this
* limit, the library must be recompiled with new PJSUA_MAX_CALLS
* value.
*/
unsigned max_calls;
/**
* Number of worker threads. Normally application will want to have at
* least one worker thread, unless when it wants to poll the library
* periodically, which in this case the worker thread can be set to
* zero.
*/
unsigned thread_cnt;
/**
* Number of nameservers. If no name server is configured, the SIP SRV
* resolution would be disabled, and domain will be resolved with
* standard pj_gethostbyname() function.
*/
unsigned nameserver_count;
/**
* Array of nameservers to be used by the SIP resolver subsystem.
* The order of the name server specifies the priority (first name
* server will be used first, unless it is not reachable).
*/
pj_str_t nameserver[4];
/**
* Force loose-route to be used in all route/proxy URIs (outbound_proxy
* and account's proxy settings). When this setting is enabled, the
* library will check all the route/proxy URIs specified in the settings
* and append ";lr" parameter to the URI if the parameter is not present.
*
* Default: 1
*/
pj_bool_t force_lr;
/**
* Number of outbound proxies in the \a outbound_proxy array.
*/
unsigned outbound_proxy_cnt;
/**
* Specify the URL of outbound proxies to visit for all outgoing requests.
* The outbound proxies will be used for all accounts, and it will
* be used to build the route set for outgoing requests. The final
* route set for outgoing requests will consists of the outbound proxies
* and the proxy configured in the account.
*/
pj_str_t outbound_proxy[4];
/**
* Warning: deprecated, please use \a stun_srv field instead. To maintain
* backward compatibility, if \a stun_srv_cnt is zero then the value of
* this field will be copied to \a stun_srv field, if present.
*
* Specify domain name to be resolved with DNS SRV resolution to get the
* address of the STUN server. Alternatively application may specify
* \a stun_host instead.
*
* If DNS SRV resolution failed for this domain, then DNS A resolution
* will be performed only if \a stun_host is specified.
*/
pj_str_t stun_domain;
/**
* Warning: deprecated, please use \a stun_srv field instead. To maintain
* backward compatibility, if \a stun_srv_cnt is zero then the value of
* this field will be copied to \a stun_srv field, if present.
*
* Specify STUN server to be used, in "HOST[:PORT]" format. If port is
* not specified, default port 3478 will be used.
*/
pj_str_t stun_host;
/**
* Number of STUN server entries in \a stun_srv array.
*/
unsigned stun_srv_cnt;
/**
* Array of STUN servers to try. The library will try to resolve and
* contact each of the STUN server entry until it finds one that is
* usable. Each entry may be a domain name, host name, IP address, and
* it may contain an optional port number. For example:
* - "pjsip.org" (domain name)
* - "sip.pjsip.org" (host name)
* - "pjsip.org:33478" (domain name and a non-standard port number)
* - "10.0.0.1:3478" (IP address and port number)
*
* When nameserver is configured in the \a pjsua_config.nameserver field,
* if entry is not an IP address, it will be resolved with DNS SRV
* resolution first, and it will fallback to use DNS A resolution if this
* fails. Port number may be specified even if the entry is a domain name,
* in case the DNS SRV resolution should fallback to a non-standard port.
*
* When nameserver is not configured, entries will be resolved with
* #pj_gethostbyname() if it's not an IP address. Port number may be
* specified if the server is not listening in standard STUN port.
*/
pj_str_t stun_srv[8];
/**
* This specifies if the library startup should ignore failure with the
* STUN servers. If this is set to PJ_FALSE, the library will refuse to
* start if it fails to resolve or contact any of the STUN servers.
*
* Default: PJ_TRUE
*/
pj_bool_t stun_ignore_failure;
/**
* Support for adding and parsing NAT type in the SDP to assist
* troubleshooting. The valid values are:
* - 0: no information will be added in SDP, and parsing is disabled.
* - 1: only the NAT type number is added.
* - 2: add both NAT type number and name.
*
* Default: 1
*/
int nat_type_in_sdp;
/**
* Specify how the support for reliable provisional response (100rel/
* PRACK) should be used by default. Note that this setting can be
* further customized in account configuration (#pjsua_acc_config).
*
* Default: PJSUA_100REL_NOT_USED
*/
pjsua_100rel_use require_100rel;
/**
* Specify the usage of Session Timers for all sessions. See the
* #pjsua_sip_timer_use for possible values. Note that this setting can be
* further customized in account configuration (#pjsua_acc_config).
*
* Default: PJSUA_SIP_TIMER_OPTIONAL
*/
pjsua_sip_timer_use use_timer;
/**
* Handle unsolicited NOTIFY requests containing message waiting
* indication (MWI) info. Unsolicited MWI is incoming NOTIFY requests
* which are not requested by client with SUBSCRIBE request.
*
* If this is enabled, the library will respond 200/OK to the NOTIFY
* request and forward the request to \a on_mwi_info() callback.
*
* See also \a mwi_enabled field #on pjsua_acc_config.
*
* Default: PJ_TRUE
*
*/
pj_bool_t enable_unsolicited_mwi;
/**
* Specify Session Timer settings, see #pjsip_timer_setting.
* Note that this setting can be further customized in account
* configuration (#pjsua_acc_config).
*/
pjsip_timer_setting timer_setting;
/**
* Number of credentials in the credential array.
*/
unsigned cred_count;
/**
* Array of credentials. These credentials will be used by all accounts,
* and can be used to authenticate against outbound proxies. If the
* credential is specific to the account, then application should set
* the credential in the pjsua_acc_config rather than the credential
* here.
*/
pjsip_cred_info cred_info[PJSUA_ACC_MAX_PROXIES];
/**
* Application callback to receive various event notifications from
* the library.
*/
pjsua_callback cb;
/**
* Optional user agent string (default empty). If it's empty, no
* User-Agent header will be sent with outgoing requests.
*/
pj_str_t user_agent;
/**
* Specify default value of secure media transport usage.
* Valid values are PJMEDIA_SRTP_DISABLED, PJMEDIA_SRTP_OPTIONAL, and
* PJMEDIA_SRTP_MANDATORY.
*
* Note that this setting can be further customized in account
* configuration (#pjsua_acc_config).
*
* Default: #PJSUA_DEFAULT_USE_SRTP
*/
pjmedia_srtp_use use_srtp;
/**
* Specify whether SRTP requires secure signaling to be used. This option
* is only used when \a use_srtp option above is non-zero.
*
* Valid values are:
* 0: SRTP does not require secure signaling
* 1: SRTP requires secure transport such as TLS
* 2: SRTP requires secure end-to-end transport (SIPS)
*
* Note that this setting can be further customized in account
* configuration (#pjsua_acc_config).
*
* Default: #PJSUA_DEFAULT_SRTP_SECURE_SIGNALING
*/
int srtp_secure_signaling;
/**
* This setting has been deprecated and will be ignored.
*/
pj_bool_t srtp_optional_dup_offer;
/**
* Disconnect other call legs when more than one 2xx responses for
* outgoing INVITE are received due to forking. Currently the library
* is not able to handle simultaneous forked media, so disconnecting
* the other call legs is necessary.
*
* With this setting enabled, the library will handle only one of the
* connected call leg, and the other connected call legs will be
* disconnected.
*
* Default: PJ_TRUE (only disable this setting for testing purposes).
*/
pj_bool_t hangup_forked_call;
} pjsua_config;
/**
* Flags to be given to pjsua_destroy2()
*/
typedef enum pjsua_destroy_flag
{
/**
* Allow sending outgoing messages (such as unregistration, event
* unpublication, BYEs, unsubscription, etc.), but do not wait for
* responses. This is useful to perform "best effort" clean up
* without delaying the shutdown process waiting for responses.
*/
PJSUA_DESTROY_NO_RX_MSG = 1,
/**
* If this flag is set, do not send any outgoing messages at all.
* This flag is useful if application knows that the network which
* the messages are to be sent on is currently down.
*/
PJSUA_DESTROY_NO_TX_MSG = 2,
/**
* Do not send or receive messages during destroy. This flag is
* shorthand for PJSUA_DESTROY_NO_RX_MSG + PJSUA_DESTROY_NO_TX_MSG.
*/
PJSUA_DESTROY_NO_NETWORK = PJSUA_DESTROY_NO_RX_MSG |
PJSUA_DESTROY_NO_TX_MSG
} pjsua_destroy_flag;
/**
* Use this function to initialize pjsua config.
*
* @param cfg pjsua config to be initialized.
*/
PJ_DECL(void) pjsua_config_default(pjsua_config *cfg);
/** The implementation has been moved to sip_auth.h */
#define pjsip_cred_dup pjsip_cred_info_dup
/**
* Duplicate pjsua_config.
*
* @param pool The pool to get memory from.
* @param dst Destination config.
* @param src Source config.
*/
PJ_DECL(void) pjsua_config_dup(pj_pool_t *pool,
pjsua_config *dst,
const pjsua_config *src);
/**
* This structure describes additional information to be sent with
* outgoing SIP message. It can (optionally) be specified for example
* with #pjsua_call_make_call(), #pjsua_call_answer(), #pjsua_call_hangup(),
* #pjsua_call_set_hold(), #pjsua_call_send_im(), and many more.
*
* Application MUST call #pjsua_msg_data_init() to initialize this
* structure before setting its values.
*/
struct pjsua_msg_data
{
/**
* Additional message headers as linked list. Application can add
* headers to the list by creating the header, either from the heap/pool
* or from temporary local variable, and add the header using
* linked list operation. See pjsua_app.c for some sample codes.
*/
pjsip_hdr hdr_list;
/**
* MIME type of optional message body.
*/
pj_str_t content_type;
/**
* Optional message body to be added to the message, only when the
* message doesn't have a body.
*/
pj_str_t msg_body;
/**
* Content type of the multipart body. If application wants to send
* multipart message bodies, it puts the parts in \a parts and set
* the content type in \a multipart_ctype. If the message already
* contains a body, the body will be added to the multipart bodies.
*/
pjsip_media_type multipart_ctype;
/**
* List of multipart parts. If application wants to send multipart
* message bodies, it puts the parts in \a parts and set the content
* type in \a multipart_ctype. If the message already contains a body,
* the body will be added to the multipart bodies.
*/
pjsip_multipart_part multipart_parts;
};
/**
* Initialize message data.
*
* @param msg_data Message data to be initialized.
*/
PJ_DECL(void) pjsua_msg_data_init(pjsua_msg_data *msg_data);
/**
* Clone message data.
*
* @param pool Pool to allocate memory for the new message data.
* @param rhs Message data to be cloned.
*
* @return The new message data.
*/
PJ_DECL(pjsua_msg_data*) pjsua_msg_data_clone(pj_pool_t *pool,
const pjsua_msg_data *rhs);
/**
* Instantiate pjsua application. Application must call this function before
* calling any other functions, to make sure that the underlying libraries
* are properly initialized. Once this function has returned success,
* application must call pjsua_destroy() before quitting.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_create(void);
/** Forward declaration */
typedef struct pjsua_media_config pjsua_media_config;
/**
* Initialize pjsua with the specified settings. All the settings are
* optional, and the default values will be used when the config is not
* specified.
*
* Note that #pjsua_create() MUST be called before calling this function.
*
* @param ua_cfg User agent configuration.
* @param log_cfg Optional logging configuration.
* @param media_cfg Optional media configuration.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_init(const pjsua_config *ua_cfg,
const pjsua_logging_config *log_cfg,
const pjsua_media_config *media_cfg);
/**
* Application is recommended to call this function after all initialization
* is done, so that the library can do additional checking set up
* additional
*
* Application may call this function anytime after #pjsua_init().
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_start(void);
/**
* Destroy pjsua. Application is recommended to perform graceful shutdown
* before calling this function (such as unregister the account from the SIP
* server, terminate presense subscription, and hangup active calls), however,
* this function will do all of these if it finds there are active sessions
* that need to be terminated. This function will approximately block for
* one second to wait for replies from remote.
*
* Application.may safely call this function more than once if it doesn't
* keep track of it's state.
*
* @see pjsua_destroy2()
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_destroy(void);
/**
* Retrieve pjsua state.
*
* @return pjsua state.
*/
PJ_DECL(pjsua_state) pjsua_get_state(void);
/**
* Variant of destroy with additional flags.
*
* @param flags Combination of pjsua_destroy_flag enumeration.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_destroy2(unsigned flags);
/**
* Poll pjsua for events, and if necessary block the caller thread for
* the specified maximum interval (in miliseconds).
*
* Application doesn't normally need to call this function if it has
* configured worker thread (\a thread_cnt field) in pjsua_config structure,
* because polling then will be done by these worker threads instead.
*
* @param msec_timeout Maximum time to wait, in miliseconds.
*
* @return The number of events that have been handled during the
* poll. Negative value indicates error, and application
* can retrieve the error as (status = -return_value).
*/
PJ_DECL(int) pjsua_handle_events(unsigned msec_timeout);
/**
* Create memory pool to be used by the application. Once application
* finished using the pool, it must be released with pj_pool_release().
*
* @param name Optional pool name.
* @param init_size Initial size of the pool.
* @param increment Increment size.
*
* @return The pool, or NULL when there's no memory.
*/
PJ_DECL(pj_pool_t*) pjsua_pool_create(const char *name, pj_size_t init_size,
pj_size_t increment);
/**
* Application can call this function at any time (after pjsua_create(), of
* course) to change logging settings.
*
* @param c Logging configuration.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_reconfigure_logging(const pjsua_logging_config *c);
/**
* Internal function to get SIP endpoint instance of pjsua, which is
* needed for example to register module, create transports, etc.
* Only valid after #pjsua_init() is called.
*
* @return SIP endpoint instance.
*/
PJ_DECL(pjsip_endpoint*) pjsua_get_pjsip_endpt(void);
/**
* Internal function to get media endpoint instance.
* Only valid after #pjsua_init() is called.
*
* @return Media endpoint instance.
*/
PJ_DECL(pjmedia_endpt*) pjsua_get_pjmedia_endpt(void);
/**
* Internal function to get PJSUA pool factory.
* Only valid after #pjsua_create() is called.
*
* @return Pool factory currently used by PJSUA.
*/
PJ_DECL(pj_pool_factory*) pjsua_get_pool_factory(void);
/*****************************************************************************
* Utilities.
*
*/
/**
* This structure is used to represent the result of the STUN server
* resolution and testing, the #pjsua_resolve_stun_servers() function.
* This structure will be passed in #pj_stun_resolve_cb callback.
*/
typedef struct pj_stun_resolve_result
{
/**
* Arbitrary data that was passed to #pjsua_resolve_stun_servers()
* function.
*/
void *token;
/**
* This will contain PJ_SUCCESS if at least one usable STUN server
* is found, otherwise it will contain the last error code during
* the operation.
*/
pj_status_t status;
/**
* The server name that yields successful result. This will only
* contain value if status is successful.
*/
pj_str_t name;
/**
* The server IP address. This will only contain value if status
* is successful.
*/
pj_sockaddr addr;
} pj_stun_resolve_result;
/**
* Typedef of callback to be registered to #pjsua_resolve_stun_servers().
*/
typedef void (*pj_stun_resolve_cb)(const pj_stun_resolve_result *result);
/**
* This is a utility function to detect NAT type in front of this
* endpoint. Once invoked successfully, this function will complete
* asynchronously and report the result in \a on_nat_detect() callback
* of pjsua_callback.
*
* After NAT has been detected and the callback is called, application can
* get the detected NAT type by calling #pjsua_get_nat_type(). Application
* can also perform NAT detection by calling #pjsua_detect_nat_type()
* again at later time.
*
* Note that STUN must be enabled to run this function successfully.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_detect_nat_type(void);
/**
* Get the NAT type as detected by #pjsua_detect_nat_type() function.
* This function will only return useful NAT type after #pjsua_detect_nat_type()
* has completed successfully and \a on_nat_detect() callback has been called.
*
* @param type NAT type.
*
* @return When detection is in progress, this function will
* return PJ_EPENDING and \a type will be set to
* PJ_STUN_NAT_TYPE_UNKNOWN. After NAT type has been
* detected successfully, this function will return
* PJ_SUCCESS and \a type will be set to the correct
* value. Other return values indicate error and
* \a type will be set to PJ_STUN_NAT_TYPE_ERR_UNKNOWN.
*
* @see pjsua_call_get_rem_nat_type()
*/
PJ_DECL(pj_status_t) pjsua_get_nat_type(pj_stun_nat_type *type);
/**
* Auxiliary function to resolve and contact each of the STUN server
* entries (sequentially) to find which is usable. The #pjsua_init() must
* have been called before calling this function.
*
* @param count Number of STUN server entries to try.
* @param srv Array of STUN server entries to try. Please see
* the \a stun_srv field in the #pjsua_config
* documentation about the format of this entry.
* @param wait Specify non-zero to make the function block until
* it gets the result. In this case, the function
* will block while the resolution is being done,
* and the callback will be called before this function
* returns.
* @param token Arbitrary token to be passed back to application
* in the callback.
* @param cb Callback to be called to notify the result of
* the function.
*
* @return If \a wait parameter is non-zero, this will return
* PJ_SUCCESS if one usable STUN server is found.
* Otherwise it will always return PJ_SUCCESS, and
* application will be notified about the result in
* the callback.
*/
PJ_DECL(pj_status_t) pjsua_resolve_stun_servers(unsigned count,
pj_str_t srv[],
pj_bool_t wait,
void *token,
pj_stun_resolve_cb cb);
/**
* Cancel pending STUN resolution which match the specified token.
*
* @param token The token to match. This token was given to
* #pjsua_resolve_stun_servers()
* @param notify_cb Boolean to control whether the callback should
* be called for cancelled resolutions. When the
* callback is called, the status in the result
* will be set as PJ_ECANCELLED.
*
* @return PJ_SUCCESS if there is at least one pending STUN
* resolution cancelled, or PJ_ENOTFOUND if there is
* no matching one, or other error.
*/
PJ_DECL(pj_status_t) pjsua_cancel_stun_resolution(void *token,
pj_bool_t notify_cb);
/**
* This is a utility function to verify that valid SIP url is given. If the
* URL is a valid SIP/SIPS scheme, PJ_SUCCESS will be returned.
*
* @param url The URL, as NULL terminated string.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*
* @see pjsua_verify_url()
*/
PJ_DECL(pj_status_t) pjsua_verify_sip_url(const char *url);
/**
* This is a utility function to verify that valid URI is given. Unlike
* pjsua_verify_sip_url(), this function will return PJ_SUCCESS if tel: URI
* is given.
*
* @param url The URL, as NULL terminated string.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*
* @see pjsua_verify_sip_url()
*/
PJ_DECL(pj_status_t) pjsua_verify_url(const char *url);
/**
* Schedule a timer entry. Note that the timer callback may be executed
* by different thread, depending on whether worker thread is enabled or
* not.
*
* @param entry Timer heap entry.
* @param delay The interval to expire.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*
* @see pjsip_endpt_schedule_timer()
*/
PJ_DECL(pj_status_t) pjsua_schedule_timer(pj_timer_entry *entry,
const pj_time_val *delay);
/**
* Schedule a callback function to be called after a specified time interval.
* Note that the callback may be executed by different thread, depending on
* whether worker thread is enabled or not.
*
* @param cb The callback function.
* @param user_data The user data.
* @param msec_delay The time interval in msec.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_schedule_timer2(void (*cb)(void *user_data),
void *user_data,
unsigned msec_delay);
/**
* Cancel the previously scheduled timer.
*
* @param entry Timer heap entry.
*
* @see pjsip_endpt_cancel_timer()
*/
PJ_DECL(void) pjsua_cancel_timer(pj_timer_entry *entry);
/**
* This is a utility function to display error message for the specified
* error code. The error message will be sent to the log.
*
* @param sender The log sender field.
* @param title Message title for the error.
* @param status Status code.
*/
PJ_DECL(void) pjsua_perror(const char *sender, const char *title,
pj_status_t status);
/**
* This is a utility function to dump the stack states to log, using
* verbosity level 3.
*
* @param detail Will print detailed output (such as list of
* SIP transactions) when non-zero.
*/
PJ_DECL(void) pjsua_dump(pj_bool_t detail);
/**
* @}
*/
/*****************************************************************************
* TRANSPORT API
*/
/**
* @defgroup PJSUA_LIB_TRANSPORT PJSUA-API Signaling Transport
* @ingroup PJSUA_LIB
* @brief API for managing SIP transports
* @{
*
* PJSUA-API supports creating multiple transport instances, for example UDP,
* TCP, and TLS transport. SIP transport must be created before adding an
* account.
*/
/** SIP transport identification.
*/
typedef int pjsua_transport_id;
/**
* Transport configuration for creating transports for both SIP
* and media. Before setting some values to this structure, application
* MUST call #pjsua_transport_config_default() to initialize its
* values with default settings.
*/
typedef struct pjsua_transport_config
{
/**
* UDP port number to bind locally. This setting MUST be specified
* even when default port is desired. If the value is zero, the
* transport will be bound to any available port, and application
* can query the port by querying the transport info.
*/
unsigned port;
/**
* Optional address to advertise as the address of this transport.
* Application can specify any address or hostname for this field,
* for example it can point to one of the interface address in the
* system, or it can point to the public address of a NAT router
* where port mappings have been configured for the application.
*
* Note: this option can be used for both UDP and TCP as well!
*/
pj_str_t public_addr;
/**
* Optional address where the socket should be bound to. This option
* SHOULD only be used to selectively bind the socket to particular
* interface (instead of 0.0.0.0), and SHOULD NOT be used to set the
* published address of a transport (the public_addr field should be
* used for that purpose).
*
* Note that unlike public_addr field, the address (or hostname) here
* MUST correspond to the actual interface address in the host, since
* this address will be specified as bind() argument.
*/
pj_str_t bound_addr;
/**
* This specifies TLS settings for TLS transport. It is only be used
* when this transport config is being used to create a SIP TLS
* transport.
*/
pjsip_tls_setting tls_setting;
/**
* QoS traffic type to be set on this transport. When application wants
* to apply QoS tagging to the transport, it's preferable to set this
* field rather than \a qos_param fields since this is more portable.
*
* Default is QoS not set.
*/
pj_qos_type qos_type;
/**
* Set the low level QoS parameters to the transport. This is a lower
* level operation than setting the \a qos_type field and may not be
* supported on all platforms.
*
* Default is QoS not set.
*/
pj_qos_params qos_params;
} pjsua_transport_config;
/**
* Call this function to initialize UDP config with default values.
*
* @param cfg The UDP config to be initialized.
*/
PJ_DECL(void) pjsua_transport_config_default(pjsua_transport_config *cfg);
/**
* Duplicate transport config.
*
* @param pool The pool.
* @param dst The destination config.
* @param src The source config.
*/
PJ_DECL(void) pjsua_transport_config_dup(pj_pool_t *pool,
pjsua_transport_config *dst,
const pjsua_transport_config *src);
/**
* This structure describes transport information returned by
* #pjsua_transport_get_info() function.
*/
typedef struct pjsua_transport_info
{
/**
* PJSUA transport identification.
*/
pjsua_transport_id id;
/**
* Transport type.
*/
pjsip_transport_type_e type;
/**
* Transport type name.
*/
pj_str_t type_name;
/**
* Transport string info/description.
*/
pj_str_t info;
/**
* Transport flag (see ##pjsip_transport_flags_e).
*/
unsigned flag;
/**
* Local address length.
*/
unsigned addr_len;
/**
* Local/bound address.
*/
pj_sockaddr local_addr;
/**
* Published address (or transport address name).
*/
pjsip_host_port local_name;
/**
* Current number of objects currently referencing this transport.
*/
unsigned usage_count;
} pjsua_transport_info;
/**
* Create and start a new SIP transport according to the specified
* settings.
*
* @param type Transport type.
* @param cfg Transport configuration.
* @param p_id Optional pointer to receive transport ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_transport_create(pjsip_transport_type_e type,
const pjsua_transport_config *cfg,
pjsua_transport_id *p_id);
/**
* Register transport that has been created by application. This function
* is useful if application wants to implement custom SIP transport and use
* it with pjsua.
*
* @param tp Transport instance.
* @param p_id Optional pointer to receive transport ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_transport_register(pjsip_transport *tp,
pjsua_transport_id *p_id);
/**
* Enumerate all transports currently created in the system. This function
* will return all transport IDs, and application may then call
* #pjsua_transport_get_info() function to retrieve detailed information
* about the transport.
*
* @param id Array to receive transport ids.
* @param count In input, specifies the maximum number of elements.
* On return, it contains the actual number of elements.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_transports( pjsua_transport_id id[],
unsigned *count );
/**
* Get information about transports.
*
* @param id Transport ID.
* @param info Pointer to receive transport info.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_transport_get_info(pjsua_transport_id id,
pjsua_transport_info *info);
/**
* Disable a transport or re-enable it. By default transport is always
* enabled after it is created. Disabling a transport does not necessarily
* close the socket, it will only discard incoming messages and prevent
* the transport from being used to send outgoing messages.
*
* @param id Transport ID.
* @param enabled Non-zero to enable, zero to disable.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_transport_set_enable(pjsua_transport_id id,
pj_bool_t enabled);
/**
* Close the transport. If transport is forcefully closed, it will be
* immediately closed, and any pending transactions that are using the
* transport may not terminate properly (it may even crash). Otherwise,
* the system will wait until all transactions are closed while preventing
* new users from using the transport, and will close the transport when
* it is safe to do so.
*
* @param id Transport ID.
* @param force Non-zero to immediately close the transport. This
* is not recommended!
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_transport_close( pjsua_transport_id id,
pj_bool_t force );
/**
* @}
*/
/*****************************************************************************
* ACCOUNT API
*/
/**
* @defgroup PJSUA_LIB_ACC PJSUA-API Accounts Management
* @ingroup PJSUA_LIB
* @brief PJSUA Accounts management
* @{
*
* PJSUA accounts provide identity (or identities) of the user who is currently
* using the application. In SIP terms, the identity is used as the <b>From</b>
* header in outgoing requests.
*
* PJSUA-API supports creating and managing multiple accounts. The maximum
* number of accounts is limited by a compile time constant
* <tt>PJSUA_MAX_ACC</tt>.
*
* Account may or may not have client registration associated with it.
* An account is also associated with <b>route set</b> and some <b>authentication
* credentials</b>, which are used when sending SIP request messages using the
* account. An account also has presence's <b>online status</b>, which
* will be reported to remote peer when they subscribe to the account's
* presence, or which is published to a presence server if presence
* publication is enabled for the account.
*
* At least one account MUST be created in the application. If no user
* association is required, application can create a userless account by
* calling #pjsua_acc_add_local(). A userless account identifies local endpoint
* instead of a particular user, and it correspond with a particular
* transport instance.
*
* Also one account must be set as the <b>default account</b>, which is used as
* the account to use when PJSUA fails to match a request with any other
* accounts.
*
* When sending outgoing SIP requests (such as making calls or sending
* instant messages), normally PJSUA requires the application to specify
* which account to use for the request. If no account is specified,
* PJSUA may be able to select the account by matching the destination
* domain name, and fall back to default account when no match is found.
*/
/**
* Maximum accounts.
*/
#ifndef PJSUA_MAX_ACC
# define PJSUA_MAX_ACC 8
#endif
/**
* Default registration interval.
*/
#ifndef PJSUA_REG_INTERVAL
# define PJSUA_REG_INTERVAL 300
#endif
/**
* Default maximum time to wait for account unregistration transactions to
* complete during library shutdown sequence.
*
* Default: 4000 (4 seconds)
*/
#ifndef PJSUA_UNREG_TIMEOUT
# define PJSUA_UNREG_TIMEOUT 4000
#endif
/**
* Default PUBLISH expiration
*/
#ifndef PJSUA_PUBLISH_EXPIRATION
# define PJSUA_PUBLISH_EXPIRATION PJSIP_PUBC_EXPIRATION_NOT_SPECIFIED
#endif
/**
* Default account priority.
*/
#ifndef PJSUA_DEFAULT_ACC_PRIORITY
# define PJSUA_DEFAULT_ACC_PRIORITY 0
#endif
/**
* This macro specifies the URI scheme to use in Contact header
* when secure transport such as TLS is used. Application can specify
* either "sip" or "sips".
*/
#ifndef PJSUA_SECURE_SCHEME
# define PJSUA_SECURE_SCHEME "sip"
#endif
/**
* Maximum time to wait for unpublication transaction(s) to complete
* during shutdown process, before sending unregistration. The library
* tries to wait for the unpublication (un-PUBLISH) to complete before
* sending REGISTER request to unregister the account, during library
* shutdown process. If the value is set too short, it is possible that
* the unregistration is sent before unpublication completes, causing
* unpublication request to fail.
*
* Default: 2000 (2 seconds)
*/
#ifndef PJSUA_UNPUBLISH_MAX_WAIT_TIME_MSEC
# define PJSUA_UNPUBLISH_MAX_WAIT_TIME_MSEC 2000
#endif
/**
* Default auto retry re-registration interval, in seconds. Set to 0
* to disable this. Application can set the timer on per account basis
* by setting the pjsua_acc_config.reg_retry_interval field instead.
*
* Default: 300 (5 minutes)
*/
#ifndef PJSUA_REG_RETRY_INTERVAL
# define PJSUA_REG_RETRY_INTERVAL 300
#endif
/**
* This macro specifies the default value for \a contact_rewrite_method
* field in pjsua_acc_config. I specifies how Contact update will be
* done with the registration, if \a allow_contact_rewrite is enabled in
* the account config.
*
* If set to 1, the Contact update will be done by sending unregistration
* to the currently registered Contact, while simultaneously sending new
* registration (with different Call-ID) for the updated Contact.
*
* If set to 2, the Contact update will be done in a single, current
* registration session, by removing the current binding (by setting its
* Contact's expires parameter to zero) and adding a new Contact binding,
* all done in a single request.
*
* Value 1 is the legacy behavior.
*
* Default value: 2
*/
#ifndef PJSUA_CONTACT_REWRITE_METHOD
# define PJSUA_CONTACT_REWRITE_METHOD 2
#endif
/**
* Bit value used in pjsua_acc_config.reg_use_proxy field to indicate that
* the global outbound proxy list should be added to the REGISTER request.
*/
#define PJSUA_REG_USE_OUTBOUND_PROXY 1
/**
* Bit value used in pjsua_acc_config.reg_use_proxy field to indicate that
* the account proxy list should be added to the REGISTER request.
*/
#define PJSUA_REG_USE_ACC_PROXY 2
/**
* This enumeration specifies how we should offer call hold request to
* remote peer. The default value is set by compile time constant
* PJSUA_CALL_HOLD_TYPE_DEFAULT, and application may control the setting
* on per-account basis by manipulating \a call_hold_type field in
* #pjsua_acc_config.
*/
typedef enum pjsua_call_hold_type
{
/**
* This will follow RFC 3264 recommendation to use a=sendonly,
* a=recvonly, and a=inactive attribute as means to signal call
* hold status. This is the correct value to use.
*/
PJSUA_CALL_HOLD_TYPE_RFC3264,
/**
* This will use the old and deprecated method as specified in RFC 2543,
* and will offer c=0.0.0.0 in the SDP instead. Using this has many
* drawbacks such as inability to keep the media transport alive while
* the call is being put on hold, and should only be used if remote
* does not understand RFC 3264 style call hold offer.
*/
PJSUA_CALL_HOLD_TYPE_RFC2543
} pjsua_call_hold_type;
/**
* Specify the default call hold type to be used in #pjsua_acc_config.
*
* Default is PJSUA_CALL_HOLD_TYPE_RFC3264, and there's no reason to change
* this except if you're communicating with an old/non-standard peer.
*/
#ifndef PJSUA_CALL_HOLD_TYPE_DEFAULT
# define PJSUA_CALL_HOLD_TYPE_DEFAULT PJSUA_CALL_HOLD_TYPE_RFC3264
#endif
/**
* This structure describes account configuration to be specified when
* adding a new account with #pjsua_acc_add(). Application MUST initialize
* this structure first by calling #pjsua_acc_config_default().
*/
typedef struct pjsua_acc_config
{
/**
* Arbitrary user data to be associated with the newly created account.
* Application may set this later with #pjsua_acc_set_user_data() and
* retrieve it with #pjsua_acc_get_user_data().
*/
void *user_data;
/**
* Account priority, which is used to control the order of matching
* incoming/outgoing requests. The higher the number means the higher
* the priority is, and the account will be matched first.
*/
int priority;
/**
* The full SIP URL for the account. The value can take name address or
* URL format, and will look something like "sip:account@serviceprovider".
*
* This field is mandatory.
*/
pj_str_t id;
/**
* This is the URL to be put in the request URI for the registration,
* and will look something like "sip:serviceprovider".
*
* This field should be specified if registration is desired. If the
* value is empty, no account registration will be performed.
*/
pj_str_t reg_uri;
/**
* The optional custom SIP headers to be put in the registration
* request.
*/
pjsip_hdr reg_hdr_list;
/**
* The optional custom SIP headers to be put in the presence
* subscription request.
*/
pjsip_hdr sub_hdr_list;
/**
* Subscribe to message waiting indication events (RFC 3842).
*
* See also \a enable_unsolicited_mwi field on #pjsua_config.
*
* Default: no
*/
pj_bool_t mwi_enabled;
/**
* If this flag is set, the presence information of this account will
* be PUBLISH-ed to the server where the account belongs.
*
* Default: PJ_FALSE
*/
pj_bool_t publish_enabled;
/**
* Event publication options.
*/
pjsip_publishc_opt publish_opt;
/**
* Maximum time to wait for unpublication transaction(s) to complete
* during shutdown process, before sending unregistration. The library
* tries to wait for the unpublication (un-PUBLISH) to complete before
* sending REGISTER request to unregister the account, during library
* shutdown process. If the value is set too short, it is possible that
* the unregistration is sent before unpublication completes, causing
* unpublication request to fail.
*
* Default: PJSUA_UNPUBLISH_MAX_WAIT_TIME_MSEC
*/
unsigned unpublish_max_wait_time_msec;
/**
* Authentication preference.
*/
pjsip_auth_clt_pref auth_pref;
/**
* Optional PIDF tuple ID for outgoing PUBLISH and NOTIFY. If this value
* is not specified, a random string will be used.
*/
pj_str_t pidf_tuple_id;
/**
* Optional URI to be put as Contact for this account. It is recommended
* that this field is left empty, so that the value will be calculated
* automatically based on the transport address.
*/
pj_str_t force_contact;
/**
* Additional parameters that will be appended in the Contact header
* for this account. This will affect the Contact header in all SIP
* messages sent on behalf of this account, including but not limited to
* REGISTER, INVITE, and SUBCRIBE requests or responses.
*
* The parameters should be preceeded by semicolon, and all strings must
* be properly escaped. Example:
* ";my-param=X;another-param=Hi%20there"
*/
pj_str_t contact_params;
/**
* Additional URI parameters that will be appended in the Contact URI
* for this account. This will affect the Contact URI in all SIP
* messages sent on behalf of this account, including but not limited to
* REGISTER, INVITE, and SUBCRIBE requests or responses.
*
* The parameters should be preceeded by semicolon, and all strings must
* be properly escaped. Example:
* ";my-param=X;another-param=Hi%20there"
*/
pj_str_t contact_uri_params;
/**
* Specify how support for reliable provisional response (100rel/
* PRACK) should be used for all sessions in this account. See the
* documentation of pjsua_100rel_use enumeration for more info.
*
* Default: The default value is taken from the value of
* require_100rel in pjsua_config.
*/
pjsua_100rel_use require_100rel;
/**
* Specify the usage of Session Timers for all sessions. See the
* #pjsua_sip_timer_use for possible values.
*
* Default: PJSUA_SIP_TIMER_OPTIONAL
*/
pjsua_sip_timer_use use_timer;
/**
* Specify Session Timer settings, see #pjsip_timer_setting.
*/
pjsip_timer_setting timer_setting;
/**
* Number of proxies in the proxy array below.
*/
unsigned proxy_cnt;
/**
* Optional URI of the proxies to be visited for all outgoing requests
* that are using this account (REGISTER, INVITE, etc). Application need
* to specify these proxies if the service provider requires that requests
* destined towards its network should go through certain proxies first
* (for example, border controllers).
*
* These proxies will be put in the route set for this account, with
* maintaining the orders (the first proxy in the array will be visited
* first). If global outbound proxies are configured in pjsua_config,
* then these account proxies will be placed after the global outbound
* proxies in the routeset.
*/
pj_str_t proxy[PJSUA_ACC_MAX_PROXIES];
/**
* Optional interval for registration, in seconds. If the value is zero,
* default interval will be used (PJSUA_REG_INTERVAL, 300 seconds).
*/
unsigned reg_timeout;
/**
* Specify the number of seconds to refresh the client registration
* before the registration expires.
*
* Default: PJSIP_REGISTER_CLIENT_DELAY_BEFORE_REFRESH, 5 seconds
*/
unsigned reg_delay_before_refresh;
/**
* Specify the maximum time to wait for unregistration requests to
* complete during library shutdown sequence.
*
* Default: PJSUA_UNREG_TIMEOUT
*/
unsigned unreg_timeout;
/**
* Number of credentials in the credential array.
*/
unsigned cred_count;
/**
* Array of credentials. If registration is desired, normally there should
* be at least one credential specified, to successfully authenticate
* against the service provider. More credentials can be specified, for
* example when the requests are expected to be challenged by the
* proxies in the route set.
*/
pjsip_cred_info cred_info[PJSUA_ACC_MAX_PROXIES];
/**
* Optionally bind this account to specific transport. This normally is
* not a good idea, as account should be able to send requests using
* any available transports according to the destination. But some
* application may want to have explicit control over the transport to
* use, so in that case it can set this field.
*
* Default: -1 (PJSUA_INVALID_ID)
*
* @see pjsua_acc_set_transport()
*/
pjsua_transport_id transport_id;
/**
* This option is used to update the transport address and the Contact
* header of REGISTER request. When this option is enabled, the library
* will keep track of the public IP address from the response of REGISTER
* request. Once it detects that the address has changed, it will
* unregister current Contact, update the Contact with transport address
* learned from Via header, and register a new Contact to the registrar.
* This will also update the public name of UDP transport if STUN is
* configured.
*
* See also contact_rewrite_method field.
*
* Default: 1 (yes)
*/
pj_bool_t allow_contact_rewrite;
/**
* Specify how Contact update will be done with the registration, if
* \a allow_contact_rewrite is enabled.
*
* If set to 1, the Contact update will be done by sending unregistration
* to the currently registered Contact, while simultaneously sending new
* registration (with different Call-ID) for the updated Contact.
*
* If set to 2, the Contact update will be done in a single, current
* registration session, by removing the current binding (by setting its
* Contact's expires parameter to zero) and adding a new Contact binding,
* all done in a single request.
*
* Value 1 is the legacy behavior.
*
* Default value: PJSUA_CONTACT_REWRITE_METHOD (2)
*/
int contact_rewrite_method;
/**
* Control the use of SIP outbound feature. SIP outbound is described in
* RFC 5626 to enable proxies or registrar to send inbound requests back
* to UA using the same connection initiated by the UA for its
* registration. This feature is highly useful in NAT-ed deployemtns,
* hence it is enabled by default.
*
* Note: currently SIP outbound can only be used with TCP and TLS
* transports. If UDP is used for the registration, the SIP outbound
* feature will be silently ignored for the account.
*
* Default: PJ_TRUE
*/
unsigned use_rfc5626;
/**
* Specify SIP outbound (RFC 5626) instance ID to be used by this
* application. If empty, an instance ID will be generated based on
* the hostname of this agent. If application specifies this parameter, the
* value will look like "<urn:uuid:00000000-0000-1000-8000-AABBCCDDEEFF>"
* without the doublequote.
*
* Default: empty
*/
pj_str_t rfc5626_instance_id;
/**
* Specify SIP outbound (RFC 5626) registration ID. The default value
* is empty, which would cause the library to automatically generate
* a suitable value.
*
* Default: empty
*/
pj_str_t rfc5626_reg_id;
/**
* Set the interval for periodic keep-alive transmission for this account.
* If this value is zero, keep-alive will be disabled for this account.
* The keep-alive transmission will be sent to the registrar's address,
* after successful registration.
*
* Default: 15 (seconds)
*/
unsigned ka_interval;
/**
* Specify the data to be transmitted as keep-alive packets.
*
* Default: CR-LF
*/
pj_str_t ka_data;
/**
* Specify whether incoming video should be shown to screen by default.
* This applies to incoming call (INVITE), incoming re-INVITE, and
* incoming UPDATE requests.
*
* Regardless of this setting, application can detect incoming video
* by implementing \a on_call_media_state() callback and enumerating
* the media stream(s) with #pjsua_call_get_info(). Once incoming
* video is recognised, application may retrieve the window associated
* with the incoming video and show or hide it with
* #pjsua_vid_win_set_show().
*
* Default: PJ_FALSE
*/
pj_bool_t vid_in_auto_show;
/**
* Specify whether outgoing video should be activated by default when
* making outgoing calls and/or when incoming video is detected. This
* applies to incoming and outgoing calls, incoming re-INVITE, and
* incoming UPDATE. If the setting is non-zero, outgoing video
* transmission will be started as soon as response to these requests
* is sent (or received).
*
* Regardless of the value of this setting, application can start and
* stop outgoing video transmission with #pjsua_call_set_vid_strm().
*
* Default: PJ_FALSE
*/
pj_bool_t vid_out_auto_transmit;
/**
* Specify video window's flags. The value is a bitmask combination of
* #pjmedia_vid_dev_wnd_flag.
*
* Default: 0
*/
unsigned vid_wnd_flags;
/**
* Specify the default capture device to be used by this account. If
* \a vid_out_auto_transmit is enabled, this device will be used for
* capturing video.
*
* Default: PJMEDIA_VID_DEFAULT_CAPTURE_DEV
*/
pjmedia_vid_dev_index vid_cap_dev;
/**
* Specify the default rendering device to be used by this account.
*
* Default: PJMEDIA_VID_DEFAULT_RENDER_DEV
*/
pjmedia_vid_dev_index vid_rend_dev;
/**
* Specify the send rate control for video stream.
*
* Default: see #pjmedia_vid_stream_rc_config
*/
pjmedia_vid_stream_rc_config vid_stream_rc_cfg;
/**
* Media transport config.
*/
pjsua_transport_config rtp_cfg;
/**
* Specify whether secure media transport should be used for this account.
* Valid values are PJMEDIA_SRTP_DISABLED, PJMEDIA_SRTP_OPTIONAL, and
* PJMEDIA_SRTP_MANDATORY.
*
* Default: #PJSUA_DEFAULT_USE_SRTP
*/
pjmedia_srtp_use use_srtp;
/**
* Specify whether SRTP requires secure signaling to be used. This option
* is only used when \a use_srtp option above is non-zero.
*
* Valid values are:
* 0: SRTP does not require secure signaling
* 1: SRTP requires secure transport such as TLS
* 2: SRTP requires secure end-to-end transport (SIPS)
*
* Default: #PJSUA_DEFAULT_SRTP_SECURE_SIGNALING
*/
int srtp_secure_signaling;
/**
* This setting has been deprecated and will be ignored.
*/
pj_bool_t srtp_optional_dup_offer;
/**
* Specify interval of auto registration retry upon registration failure
* (including caused by transport problem), in second. Set to 0 to
* disable auto re-registration. Note that if the registration retry
* occurs because of transport failure, the first retry will be done
* after \a reg_first_retry_interval seconds instead. Also note that
* the interval will be randomized slightly by approximately +/- ten
* seconds to avoid all clients re-registering at the same time.
*
* See also \a reg_first_retry_interval setting.
*
* Default: #PJSUA_REG_RETRY_INTERVAL
*/
unsigned reg_retry_interval;
/**
* This specifies the interval for the first registration retry. The
* registration retry is explained in \a reg_retry_interval. Note that
* the value here will also be randomized by +/- ten seconds.
*
* Default: 0
*/
unsigned reg_first_retry_interval;
/**
* Specify whether calls of the configured account should be dropped
* after registration failure and an attempt of re-registration has
* also failed.
*
* Default: PJ_FALSE (disabled)
*/
pj_bool_t drop_calls_on_reg_fail;
/**
* Specify how the registration uses the outbound and account proxy
* settings. This controls if and what Route headers will appear in
* the REGISTER request of this account. The value is bitmask combination
* of PJSUA_REG_USE_OUTBOUND_PROXY and PJSUA_REG_USE_ACC_PROXY bits.
* If the value is set to 0, the REGISTER request will not use any proxy
* (i.e. it will not have any Route headers).
*
* Default: 3 (PJSUA_REG_USE_OUTBOUND_PROXY | PJSUA_REG_USE_ACC_PROXY)
*/
unsigned reg_use_proxy;
#if defined(PJMEDIA_STREAM_ENABLE_KA) && (PJMEDIA_STREAM_ENABLE_KA != 0)
/**
* Specify whether stream keep-alive and NAT hole punching with
* non-codec-VAD mechanism (see @ref PJMEDIA_STREAM_ENABLE_KA) is enabled
* for this account.
*
* Default: PJ_FALSE (disabled)
*/
pj_bool_t use_stream_ka;
#endif
/**
* Specify how to offer call hold to remote peer. Please see the
* documentation on #pjsua_call_hold_type for more info.
*
* Default: PJSUA_CALL_HOLD_TYPE_DEFAULT
*/
pjsua_call_hold_type call_hold_type;
/**
* Specify whether the account should register as soon as it is
* added to the UA. Application can set this to PJ_FALSE and control
* the registration manually with pjsua_acc_set_registration().
*
* Default: PJ_TRUE
*/
pj_bool_t register_on_acc_add;
} pjsua_acc_config;
/**
* Call this function to initialize account config with default values.
*
* @param cfg The account config to be initialized.
*/
PJ_DECL(void) pjsua_acc_config_default(pjsua_acc_config *cfg);
/**
* Duplicate account config.
*
* @param pool Pool to be used for duplicating the config.
* @param dst Destination configuration.
* @param src Source configuration.
*/
PJ_DECL(void) pjsua_acc_config_dup(pj_pool_t *pool,
pjsua_acc_config *dst,
const pjsua_acc_config *src);
/**
* Account info. Application can query account info by calling
* #pjsua_acc_get_info().
*/
typedef struct pjsua_acc_info
{
/**
* The account ID.
*/
pjsua_acc_id id;
/**
* Flag to indicate whether this is the default account.
*/
pj_bool_t is_default;
/**
* Account URI
*/
pj_str_t acc_uri;
/**
* Flag to tell whether this account has registration setting
* (reg_uri is not empty).
*/
pj_bool_t has_registration;
/**
* An up to date expiration interval for account registration session.
*/
int expires;
/**
* Last registration status code. If status code is zero, the account
* is currently not registered. Any other value indicates the SIP
* status code of the registration.
*/
pjsip_status_code status;
/**
* Last registration error code. When the status field contains a SIP
* status code that indicates a registration failure, last registration
* error code contains the error code that causes the failure. In any
* other case, its value is zero.
*/
pj_status_t reg_last_err;
/**
* String describing the registration status.
*/
pj_str_t status_text;
/**
* Presence online status for this account.
*/
pj_bool_t online_status;
/**
* Presence online status text.
*/
pj_str_t online_status_text;
/**
* Extended RPID online status information.
*/
pjrpid_element rpid;
/**
* Buffer that is used internally to store the status text.
*/
char buf_[PJ_ERR_MSG_SIZE];
} pjsua_acc_info;
/**
* Get number of current accounts.
*
* @return Current number of accounts.
*/
PJ_DECL(unsigned) pjsua_acc_get_count(void);
/**
* Check if the specified account ID is valid.
*
* @param acc_id Account ID to check.
*
* @return Non-zero if account ID is valid.
*/
PJ_DECL(pj_bool_t) pjsua_acc_is_valid(pjsua_acc_id acc_id);
/**
* Set default account to be used when incoming and outgoing
* requests doesn't match any accounts.
*
* @param acc_id The account ID to be used as default.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_acc_set_default(pjsua_acc_id acc_id);
/**
* Get default account to be used when receiving incoming requests (calls),
* when the destination of the incoming call doesn't match any other
* accounts.
*
* @return The default account ID, or PJSUA_INVALID_ID if no
* default account is configured.
*/
PJ_DECL(pjsua_acc_id) pjsua_acc_get_default(void);
/**
* Add a new account to pjsua. PJSUA must have been initialized (with
* #pjsua_init()) before calling this function. If registration is configured
* for this account, this function would also start the SIP registration
* session with the SIP registrar server. This SIP registration session
* will be maintained internally by the library, and application doesn't
* need to do anything to maintain the registration session.
*
*
* @param acc_cfg Account configuration.
* @param is_default If non-zero, this account will be set as the default
* account. The default account will be used when sending
* outgoing requests (e.g. making call) when no account is
* specified, and when receiving incoming requests when the
* request does not match any accounts. It is recommended
* that default account is set to local/LAN account.
* @param p_acc_id Pointer to receive account ID of the new account.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_add(const pjsua_acc_config *acc_cfg,
pj_bool_t is_default,
pjsua_acc_id *p_acc_id);
/**
* Add a local account. A local account is used to identify local endpoint
* instead of a specific user, and for this reason, a transport ID is needed
* to obtain the local address information.
*
* @param tid Transport ID to generate account address.
* @param is_default If non-zero, this account will be set as the default
* account. The default account will be used when sending
* outgoing requests (e.g. making call) when no account is
* specified, and when receiving incoming requests when the
* request does not match any accounts. It is recommended
* that default account is set to local/LAN account.
* @param p_acc_id Pointer to receive account ID of the new account.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_add_local(pjsua_transport_id tid,
pj_bool_t is_default,
pjsua_acc_id *p_acc_id);
/**
* Set arbitrary data to be associated with the account.
*
* @param acc_id The account ID.
* @param user_data User/application data.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_set_user_data(pjsua_acc_id acc_id,
void *user_data);
/**
* Retrieve arbitrary data associated with the account.
*
* @param acc_id The account ID.
*
* @return The user data. In the case where the account ID is
* not valid, NULL is returned.
*/
PJ_DECL(void*) pjsua_acc_get_user_data(pjsua_acc_id acc_id);
/**
* Delete an account. This will unregister the account from the SIP server,
* if necessary, and terminate server side presence subscriptions associated
* with this account.
*
* @param acc_id Id of the account to be deleted.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_del(pjsua_acc_id acc_id);
/**
* Get current config for the account. This will copy current account setting
* to the specified parameter. Note that all pointers in the settings will
* point to the original settings in the account and application must not
* modify the values in any way. Application must also take care that these
* data is only valid until the account is destroyed.
*
* @param acc_id The account ID.
* @param acc_cfg Structure to receive the settings.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_get_config(pjsua_acc_id acc_id,
pjsua_acc_config *acc_cfg);
/**
* Modify account information.
*
* @param acc_id Id of the account to be modified.
* @param acc_cfg New account configuration.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_modify(pjsua_acc_id acc_id,
const pjsua_acc_config *acc_cfg);
/**
* Modify account's presence status to be advertised to remote/presence
* subscribers. This would trigger the sending of outgoing NOTIFY request
* if there are server side presence subscription for this account, and/or
* outgoing PUBLISH if presence publication is enabled for this account.
*
* @see pjsua_acc_set_online_status2()
*
* @param acc_id The account ID.
* @param is_online True of false.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_set_online_status(pjsua_acc_id acc_id,
pj_bool_t is_online);
/**
* Modify account's presence status to be advertised to remote/presence
* subscribers. This would trigger the sending of outgoing NOTIFY request
* if there are server side presence subscription for this account, and/or
* outgoing PUBLISH if presence publication is enabled for this account.
*
* @see pjsua_acc_set_online_status()
*
* @param acc_id The account ID.
* @param is_online True of false.
* @param pr Extended information in subset of RPID format
* which allows setting custom presence text.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_set_online_status2(pjsua_acc_id acc_id,
pj_bool_t is_online,
const pjrpid_element *pr);
/**
* Update registration or perform unregistration. If registration is
* configured for this account, then initial SIP REGISTER will be sent
* when the account is added with #pjsua_acc_add(). Application normally
* only need to call this function if it wants to manually update the
* registration or to unregister from the server.
*
* @param acc_id The account ID.
* @param renew If renew argument is zero, this will start
* unregistration process.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_set_registration(pjsua_acc_id acc_id,
pj_bool_t renew);
/**
* Get information about the specified account.
*
* @param acc_id Account identification.
* @param info Pointer to receive account information.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_get_info(pjsua_acc_id acc_id,
pjsua_acc_info *info);
/**
* Enumerate all account currently active in the library. This will fill
* the array with the account Ids, and application can then query the
* account information for each id with #pjsua_acc_get_info().
*
* @see pjsua_acc_enum_info().
*
* @param ids Array of account IDs to be initialized.
* @param count In input, specifies the maximum number of elements.
* On return, it contains the actual number of elements.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_accs(pjsua_acc_id ids[],
unsigned *count );
/**
* Enumerate account informations.
*
* @param info Array of account infos to be initialized.
* @param count In input, specifies the maximum number of elements.
* On return, it contains the actual number of elements.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_enum_info( pjsua_acc_info info[],
unsigned *count );
/**
* This is an internal function to find the most appropriate account to
* used to reach to the specified URL.
*
* @param url The remote URL to reach.
*
* @return Account id.
*/
PJ_DECL(pjsua_acc_id) pjsua_acc_find_for_outgoing(const pj_str_t *url);
/**
* This is an internal function to find the most appropriate account to be
* used to handle incoming calls.
*
* @param rdata The incoming request message.
*
* @return Account id.
*/
PJ_DECL(pjsua_acc_id) pjsua_acc_find_for_incoming(pjsip_rx_data *rdata);
/**
* Create arbitrary requests using the account. Application should only use
* this function to create auxiliary requests outside dialog, such as
* OPTIONS, and use the call or presence API to create dialog related
* requests.
*
* @param acc_id The account ID.
* @param method The SIP method of the request.
* @param target Target URI.
* @param p_tdata Pointer to receive the request.
*
* @return PJ_SUCCESS or the error code.
*/
PJ_DECL(pj_status_t) pjsua_acc_create_request(pjsua_acc_id acc_id,
const pjsip_method *method,
const pj_str_t *target,
pjsip_tx_data **p_tdata);
/**
* Create a suitable Contact header value, based on the specified target URI
* for the specified account.
*
* @param pool Pool to allocate memory for the string.
* @param contact The string where the Contact will be stored.
* @param acc_id Account ID.
* @param uri Destination URI of the request.
*
* @return PJ_SUCCESS on success, other on error.
*/
PJ_DECL(pj_status_t) pjsua_acc_create_uac_contact( pj_pool_t *pool,
pj_str_t *contact,
pjsua_acc_id acc_id,
const pj_str_t *uri);
/**
* Create a suitable Contact header value, based on the information in the
* incoming request.
*
* @param pool Pool to allocate memory for the string.
* @param contact The string where the Contact will be stored.
* @param acc_id Account ID.
* @param rdata Incoming request.
*
* @return PJ_SUCCESS on success, other on error.
*/
PJ_DECL(pj_status_t) pjsua_acc_create_uas_contact( pj_pool_t *pool,
pj_str_t *contact,
pjsua_acc_id acc_id,
pjsip_rx_data *rdata );
/**
* Lock/bind this account to a specific transport/listener. Normally
* application shouldn't need to do this, as transports will be selected
* automatically by the stack according to the destination.
*
* When account is locked/bound to a specific transport, all outgoing
* requests from this account will use the specified transport (this
* includes SIP registration, dialog (call and event subscription), and
* out-of-dialog requests such as MESSAGE).
*
* Note that transport_id may be specified in pjsua_acc_config too.
*
* @param acc_id The account ID.
* @param tp_id The transport ID.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_acc_set_transport(pjsua_acc_id acc_id,
pjsua_transport_id tp_id);
/**
* @}
*/
/*****************************************************************************
* CALLS API
*/
/**
* @defgroup PJSUA_LIB_CALL PJSUA-API Calls Management
* @ingroup PJSUA_LIB
* @brief Call manipulation.
* @{
*/
/**
* Maximum simultaneous calls.
*/
#ifndef PJSUA_MAX_CALLS
# define PJSUA_MAX_CALLS 32
#endif
/**
* Maximum active video windows
*/
#ifndef PJSUA_MAX_VID_WINS
# define PJSUA_MAX_VID_WINS 16
#endif
/**
* Video window ID.
*/
typedef int pjsua_vid_win_id;
/**
* This enumeration specifies the media status of a call, and it's part
* of pjsua_call_info structure.
*/
typedef enum pjsua_call_media_status
{
/**
* Call currently has no media, or the media is not used.
*/
PJSUA_CALL_MEDIA_NONE,
/**
* The media is active
*/
PJSUA_CALL_MEDIA_ACTIVE,
/**
* The media is currently put on hold by local endpoint
*/
PJSUA_CALL_MEDIA_LOCAL_HOLD,
/**
* The media is currently put on hold by remote endpoint
*/
PJSUA_CALL_MEDIA_REMOTE_HOLD,
/**
* The media has reported error (e.g. ICE negotiation)
*/
PJSUA_CALL_MEDIA_ERROR
} pjsua_call_media_status;
/**
* Enumeration of video keyframe request methods. Keyframe request is
* triggered by decoder, usually when the incoming video stream cannot
* be decoded properly due to missing video keyframe.
*/
typedef enum pjsua_vid_req_keyframe_method
{
/**
* Requesting keyframe via SIP INFO message. Note that incoming keyframe
* request via SIP INFO will always be handled even if this flag is unset.
*/
PJSUA_VID_REQ_KEYFRAME_SIP_INFO = 1,
/**
* Requesting keyframe via Picture Loss Indication of RTCP feedback.
* This is currently not supported.
*/
PJSUA_VID_REQ_KEYFRAME_RTCP_PLI = 2
} pjsua_vid_req_keyframe_method;
/**
* This structure describes the information and current status of a call.
*/
typedef struct pjsua_call_info
{
/** Call identification. */
pjsua_call_id id;
/** Initial call role (UAC == caller) */
pjsip_role_e role;
/** The account ID where this call belongs. */
pjsua_acc_id acc_id;
/** Local URI */
pj_str_t local_info;
/** Local Contact */
pj_str_t local_contact;
/** Remote URI */
pj_str_t remote_info;
/** Remote contact */
pj_str_t remote_contact;
/** Dialog Call-ID string. */
pj_str_t call_id;
/** Call setting */
pjsua_call_setting setting;
/** Call state */
pjsip_inv_state state;
/** Text describing the state */
pj_str_t state_text;
/** Last status code heard, which can be used as cause code */
pjsip_status_code last_status;
/** The reason phrase describing the status. */
pj_str_t last_status_text;
/** Media status of the first audio stream. */
pjsua_call_media_status media_status;
/** Media direction of the first audio stream. */
pjmedia_dir media_dir;
/** The conference port number for the first audio stream. */
pjsua_conf_port_id conf_slot;
/** Number of media streams in this call */
unsigned media_cnt;
/** Array of media stream information */
struct
{
/** Media index in SDP. */
unsigned index;
/** Media type. */
pjmedia_type type;
/** Media direction. */
pjmedia_dir dir;
/** Call media status. */
pjsua_call_media_status status;
/** The specific media stream info. */
union {
/** Audio stream */
struct {
/** The conference port number for the call. */
pjsua_conf_port_id conf_slot;
} aud;
/** Video stream */
struct {
/**
* The window id for incoming video, if any, or
* PJSUA_INVALID_ID.
*/
pjsua_vid_win_id win_in;
/** The video capture device for outgoing transmission,
* if any, or PJMEDIA_VID_INVALID_DEV
*/
pjmedia_vid_dev_index cap_dev;
} vid;
} stream;
} media[PJMEDIA_MAX_SDP_MEDIA];
/** Up-to-date call connected duration (zero when call is not
* established)
*/
pj_time_val connect_duration;
/** Total call duration, including set-up time */
pj_time_val total_duration;
/** Flag if remote was SDP offerer */
pj_bool_t rem_offerer;
/** Number of audio streams offered by remote */
unsigned rem_aud_cnt;
/** Number of video streams offered by remote */
unsigned rem_vid_cnt;
/** Internal */
struct {
char local_info[128];
char local_contact[128];
char remote_info[128];
char remote_contact[128];
char call_id[128];
char last_status_text[128];
} buf_;
} pjsua_call_info;
/**
* Flags to be given to various call APIs. More than one flags may be
* specified by bitmasking them.
*/
typedef enum pjsua_call_flag
{
/**
* When the call is being put on hold, specify this flag to unhold it.
* This flag is only valid for #pjsua_call_reinvite(). Note: for
* compatibility reason, this flag must have value of 1 because
* previously the unhold option is specified as boolean value.
*/
PJSUA_CALL_UNHOLD = 1,
/**
* Update the local invite session's contact with the contact URI from
* the account. This flag is only valid for #pjsua_call_reinvite() and
* #pjsua_call_update(). This flag is useful in IP address change
* situation, after the local account's Contact has been updated
* (typically with re-registration) use this flag to update the invite
* session with the new Contact and to inform this new Contact to the
* remote peer with the outgoing re-INVITE or UPDATE
*/
PJSUA_CALL_UPDATE_CONTACT = 2,
/**
* Include SDP "m=" line with port set to zero for each disabled media
* (i.e when aud_cnt or vid_cnt is set to zero). This flag is only valid
* for #pjsua_call_make_call().
*/
PJSUA_CALL_INCLUDE_DISABLED_MEDIA = 4
} pjsua_call_flag;
/**
* Media stream info.
*/
typedef struct pjsua_stream_info
{
/** Media type of this stream. */
pjmedia_type type;
/** Stream info (union). */
union {
/** Audio stream info */
pjmedia_stream_info aud;
/** Video stream info */
pjmedia_vid_stream_info vid;
} info;
} pjsua_stream_info;
/**
* Media stream statistic.
*/
typedef struct pjsua_stream_stat
{
/** RTCP statistic. */
pjmedia_rtcp_stat rtcp;
/** Jitter buffer statistic. */
pjmedia_jb_state jbuf;
} pjsua_stream_stat;
/**
* This enumeration represents video stream operation on a call.
* See also #pjsua_call_vid_strm_op_param for further info.
*/
typedef enum pjsua_call_vid_strm_op
{
/**
* No operation
*/
PJSUA_CALL_VID_STRM_NO_OP,
/**
* Add a new video stream. This will add a new m=video line to
* the media, regardless of whether existing video is/are present
* or not. This will cause re-INVITE or UPDATE to be sent to remote
* party.
*/
PJSUA_CALL_VID_STRM_ADD,
/**
* Remove/disable an existing video stream. This will
* cause re-INVITE or UPDATE to be sent to remote party.
*/
PJSUA_CALL_VID_STRM_REMOVE,
/**
* Change direction of a video stream. This operation can be used
* to activate or deactivate an existing video media. This will
* cause re-INVITE or UPDATE to be sent to remote party.
*/
PJSUA_CALL_VID_STRM_CHANGE_DIR,
/**
* Change capture device of a video stream. This will not send
* re-INVITE or UPDATE to remote party.
*/
PJSUA_CALL_VID_STRM_CHANGE_CAP_DEV,
/**
* Start transmitting video stream. This will cause previously
* stopped stream to start transmitting again. Note that no
* re-INVITE/UPDATE is to be transmitted to remote since this
* operation only operates on local stream.
*/
PJSUA_CALL_VID_STRM_START_TRANSMIT,
/**
* Stop transmitting video stream. This will cause the stream to
* be paused in TX direction, causing it to stop sending any video
* packets. No re-INVITE/UPDATE is to be transmitted to remote
* with this operation.
*/
PJSUA_CALL_VID_STRM_STOP_TRANSMIT,
/**
* Send keyframe in the video stream. This will force the stream to
* generate and send video keyframe as soon as possible. No
* re-INVITE/UPDATE is to be transmitted to remote with this operation.
*/
PJSUA_CALL_VID_STRM_SEND_KEYFRAME
} pjsua_call_vid_strm_op;
/**
* Parameters for video stream operation on a call. Application should
* use #pjsua_call_vid_strm_op_param_default() to initialize this structure
* with its default values.
*/
typedef struct pjsua_call_vid_strm_op_param
{
/**
* Specify the media stream index. This can be set to -1 to denote
* the default video stream in the call, which is the first active
* video stream or any first video stream if none is active.
*
* This field is valid for all video stream operations, except
* PJSUA_CALL_VID_STRM_ADD.
*
* Default: -1 (first active video stream, or any first video stream
* if none is active)
*/
int med_idx;
/**
* Specify the media stream direction.
*
* This field is valid for the following video stream operations:
* PJSUA_CALL_VID_STRM_ADD and PJSUA_CALL_VID_STRM_CHANGE_DIR.
*
* Default: PJMEDIA_DIR_ENCODING_DECODING
*/
pjmedia_dir dir;
/**
* Specify the video capture device ID. This can be set to
* PJMEDIA_VID_DEFAULT_CAPTURE_DEV to specify the default capture
* device as configured in the account.
*
* This field is valid for the following video stream operations:
* PJSUA_CALL_VID_STRM_ADD and PJSUA_CALL_VID_STRM_CHANGE_CAP_DEV.
*
* Default: PJMEDIA_VID_DEFAULT_CAPTURE_DEV.
*/
pjmedia_vid_dev_index cap_dev;
} pjsua_call_vid_strm_op_param;
/**
* Initialize call settings.
*
* @param opt The call setting to be initialized.
*/
PJ_DECL(void) pjsua_call_setting_default(pjsua_call_setting *opt);
/**
* Initialize video stream operation param with default values.
*
* @param param The video stream operation param to be initialized.
*/
PJ_DECL(void)
pjsua_call_vid_strm_op_param_default(pjsua_call_vid_strm_op_param *param);
/**
* Get maximum number of calls configured in pjsua.
*
* @return Maximum number of calls configured.
*/
PJ_DECL(unsigned) pjsua_call_get_max_count(void);
/**
* Get number of currently active calls.
*
* @return Number of currently active calls.
*/
PJ_DECL(unsigned) pjsua_call_get_count(void);
/**
* Enumerate all active calls. Application may then query the information and
* state of each call by calling #pjsua_call_get_info().
*
* @param ids Array of account IDs to be initialized.
* @param count In input, specifies the maximum number of elements.
* On return, it contains the actual number of elements.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_calls(pjsua_call_id ids[],
unsigned *count);
/**
* Make outgoing call to the specified URI using the specified account.
*
* @param acc_id The account to be used.
* @param dst_uri URI to be put in the To header (normally is the same
* as the target URI).
* @param opt Optional call setting. This should be initialized
* using #pjsua_call_setting_default().
* @param user_data Arbitrary user data to be attached to the call, and
* can be retrieved later.
* @param msg_data Optional headers etc to be added to outgoing INVITE
* request, or NULL if no custom header is desired.
* @param p_call_id Pointer to receive call identification.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_make_call(pjsua_acc_id acc_id,
const pj_str_t *dst_uri,
const pjsua_call_setting *opt,
void *user_data,
const pjsua_msg_data *msg_data,
pjsua_call_id *p_call_id);
/**
* Check if the specified call has active INVITE session and the INVITE
* session has not been disconnected.
*
* @param call_id Call identification.
*
* @return Non-zero if call is active.
*/
PJ_DECL(pj_bool_t) pjsua_call_is_active(pjsua_call_id call_id);
/**
* Check if call has an active media session.
*
* @param call_id Call identification.
*
* @return Non-zero if yes.
*/
PJ_DECL(pj_bool_t) pjsua_call_has_media(pjsua_call_id call_id);
/**
* Get the conference port identification associated with the call.
*
* @param call_id Call identification.
*
* @return Conference port ID, or PJSUA_INVALID_ID when the
* media has not been established or is not active.
*/
PJ_DECL(pjsua_conf_port_id) pjsua_call_get_conf_port(pjsua_call_id call_id);
/**
* Obtain detail information about the specified call.
*
* @param call_id Call identification.
* @param info Call info to be initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_get_info(pjsua_call_id call_id,
pjsua_call_info *info);
/**
* Check if remote peer support the specified capability.
*
* @param call_id Call identification.
* @param htype The header type to be checked, which value may be:
* - PJSIP_H_ACCEPT
* - PJSIP_H_ALLOW
* - PJSIP_H_SUPPORTED
* @param hname If htype specifies PJSIP_H_OTHER, then the header
* name must be supplied in this argument. Otherwise the
* value must be set to NULL.
* @param token The capability token to check. For example, if \a
* htype is PJSIP_H_ALLOW, then \a token specifies the
* method names; if \a htype is PJSIP_H_SUPPORTED, then
* \a token specifies the extension names such as
* "100rel".
*
* @return PJSIP_DIALOG_CAP_SUPPORTED if the specified capability
* is explicitly supported, see @pjsip_dialog_cap_status
* for more info.
*/
PJ_DECL(pjsip_dialog_cap_status) pjsua_call_remote_has_cap(
pjsua_call_id call_id,
int htype,
const pj_str_t *hname,
const pj_str_t *token);
/**
* Attach application specific data to the call. Application can then
* inspect this data by calling #pjsua_call_get_user_data().
*
* @param call_id Call identification.
* @param user_data Arbitrary data to be attached to the call.
*
* @return The user data.
*/
PJ_DECL(pj_status_t) pjsua_call_set_user_data(pjsua_call_id call_id,
void *user_data);
/**
* Get user data attached to the call, which has been previously set with
* #pjsua_call_set_user_data().
*
* @param call_id Call identification.
*
* @return The user data.
*/
PJ_DECL(void*) pjsua_call_get_user_data(pjsua_call_id call_id);
/**
* Get the NAT type of remote's endpoint. This is a proprietary feature
* of PJSUA-LIB which sends its NAT type in the SDP when \a nat_type_in_sdp
* is set in #pjsua_config.
*
* This function can only be called after SDP has been received from remote,
* which means for incoming call, this function can be called as soon as
* call is received as long as incoming call contains SDP, and for outgoing
* call, this function can be called only after SDP is received (normally in
* 200/OK response to INVITE). As a general case, application should call
* this function after or in \a on_call_media_state() callback.
*
* @param call_id Call identification.
* @param p_type Pointer to store the NAT type. Application can then
* retrieve the string description of the NAT type
* by calling pj_stun_get_nat_name().
*
* @return PJ_SUCCESS on success.
*
* @see pjsua_get_nat_type(), nat_type_in_sdp
*/
PJ_DECL(pj_status_t) pjsua_call_get_rem_nat_type(pjsua_call_id call_id,
pj_stun_nat_type *p_type);
/**
* Send response to incoming INVITE request. Depending on the status
* code specified as parameter, this function may send provisional
* response, establish the call, or terminate the call.
*
* @param call_id Incoming call identification.
* @param code Status code, (100-699).
* @param reason Optional reason phrase. If NULL, default text
* will be used.
* @param msg_data Optional list of headers etc to be added to outgoing
* response message.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_answer(pjsua_call_id call_id,
unsigned code,
const pj_str_t *reason,
const pjsua_msg_data *msg_data);
/**
* Send response to incoming INVITE request. Depending on the status
* code specified as parameter, this function may send provisional
* response, establish the call, or terminate the call.
*
* @param call_id Incoming call identification.
* @param opt Optional call setting.
* @param code Status code, (100-699).
* @param reason Optional reason phrase. If NULL, default text
* will be used.
* @param msg_data Optional list of headers etc to be added to outgoing
* response message.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_answer2(pjsua_call_id call_id,
const pjsua_call_setting *opt,
unsigned code,
const pj_str_t *reason,
const pjsua_msg_data *msg_data);
/**
* Hangup call by using method that is appropriate according to the
* call state. This function is different than answering the call with
* 3xx-6xx response (with #pjsua_call_answer()), in that this function
* will hangup the call regardless of the state and role of the call,
* while #pjsua_call_answer() only works with incoming calls on EARLY
* state.
*
* @param call_id Call identification.
* @param code Optional status code to be sent when we're rejecting
* incoming call. If the value is zero, "603/Decline"
* will be sent.
* @param reason Optional reason phrase to be sent when we're rejecting
* incoming call. If NULL, default text will be used.
* @param msg_data Optional list of headers etc to be added to outgoing
* request/response message.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_hangup(pjsua_call_id call_id,
unsigned code,
const pj_str_t *reason,
const pjsua_msg_data *msg_data);
/**
* Accept or reject redirection response. Application MUST call this function
* after it signaled PJSIP_REDIRECT_PENDING in the \a on_call_redirected()
* callback, to notify the call whether to accept or reject the redirection
* to the current target. Application can use the combination of
* PJSIP_REDIRECT_PENDING command in \a on_call_redirected() callback and
* this function to ask for user permission before redirecting the call.
*
* Note that if the application chooses to reject or stop redirection (by
* using PJSIP_REDIRECT_REJECT or PJSIP_REDIRECT_STOP respectively), the
* call disconnection callback will be called before this function returns.
* And if the application rejects the target, the \a on_call_redirected()
* callback may also be called before this function returns if there is
* another target to try.
*
* @param call_id The call ID.
* @param cmd Redirection operation to be applied to the current
* target. The semantic of this argument is similar
* to the description in the \a on_call_redirected()
* callback, except that the PJSIP_REDIRECT_PENDING is
* not accepted here.
*
* @return PJ_SUCCESS on successful operation.
*/
PJ_DECL(pj_status_t) pjsua_call_process_redirect(pjsua_call_id call_id,
pjsip_redirect_op cmd);
/**
* Put the specified call on hold. This will send re-INVITE with the
* appropriate SDP to inform remote that the call is being put on hold.
* The final status of the request itself will be reported on the
* \a on_call_media_state() callback, which inform the application that
* the media state of the call has changed.
*
* @param call_id Call identification.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_set_hold(pjsua_call_id call_id,
const pjsua_msg_data *msg_data);
/**
* Send re-INVITE to release hold.
* The final status of the request itself will be reported on the
* \a on_call_media_state() callback, which inform the application that
* the media state of the call has changed.
*
* @param call_id Call identification.
* @param options Bitmask of pjsua_call_flag constants. Note that
* for compatibility, specifying PJ_TRUE here is
* equal to specifying PJSUA_CALL_UNHOLD flag.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_reinvite(pjsua_call_id call_id,
unsigned options,
const pjsua_msg_data *msg_data);
/**
* Send re-INVITE to release hold.
* The final status of the request itself will be reported on the
* \a on_call_media_state() callback, which inform the application that
* the media state of the call has changed.
*
* @param call_id Call identification.
* @param opt Optional call setting, if NULL, the current call
* setting will remain unchanged.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_reinvite2(pjsua_call_id call_id,
const pjsua_call_setting *opt,
const pjsua_msg_data *msg_data);
/**
* Send UPDATE request.
*
* @param call_id Call identification.
* @param options Bitmask of pjsua_call_flag constants.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_update(pjsua_call_id call_id,
unsigned options,
const pjsua_msg_data *msg_data);
/**
* Send UPDATE request.
*
* @param call_id Call identification.
* @param opt Optional call setting, if NULL, the current call
* setting will remain unchanged.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_update2(pjsua_call_id call_id,
const pjsua_call_setting *opt,
const pjsua_msg_data *msg_data);
/**
* Initiate call transfer to the specified address. This function will send
* REFER request to instruct remote call party to initiate a new INVITE
* session to the specified destination/target.
*
* If application is interested to monitor the successfulness and
* the progress of the transfer request, it can implement
* \a on_call_transfer_status() callback which will report the progress
* of the call transfer request.
*
* @param call_id The call id to be transfered.
* @param dest Address of new target to be contacted.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_xfer(pjsua_call_id call_id,
const pj_str_t *dest,
const pjsua_msg_data *msg_data);
/**
* Flag to indicate that "Require: replaces" should not be put in the
* outgoing INVITE request caused by REFER request created by
* #pjsua_call_xfer_replaces().
*/
#define PJSUA_XFER_NO_REQUIRE_REPLACES 1
/**
* Initiate attended call transfer. This function will send REFER request
* to instruct remote call party to initiate new INVITE session to the URL
* of \a dest_call_id. The party at \a dest_call_id then should "replace"
* the call with us with the new call from the REFER recipient.
*
* @param call_id The call id to be transfered.
* @param dest_call_id The call id to be replaced.
* @param options Application may specify PJSUA_XFER_NO_REQUIRE_REPLACES
* to suppress the inclusion of "Require: replaces" in
* the outgoing INVITE request created by the REFER
* request.
* @param msg_data Optional message components to be sent with
* the request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_xfer_replaces(pjsua_call_id call_id,
pjsua_call_id dest_call_id,
unsigned options,
const pjsua_msg_data *msg_data);
/**
* Send DTMF digits to remote using RFC 2833 payload formats.
*
* @param call_id Call identification.
* @param digits DTMF string digits to be sent.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_dial_dtmf(pjsua_call_id call_id,
const pj_str_t *digits);
/**
* Send instant messaging inside INVITE session.
*
* @param call_id Call identification.
* @param mime_type Optional MIME type. If NULL, then "text/plain" is
* assumed.
* @param content The message content.
* @param msg_data Optional list of headers etc to be included in outgoing
* request. The body descriptor in the msg_data is
* ignored.
* @param user_data Optional user data, which will be given back when
* the IM callback is called.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_send_im( pjsua_call_id call_id,
const pj_str_t *mime_type,
const pj_str_t *content,
const pjsua_msg_data *msg_data,
void *user_data);
/**
* Send IM typing indication inside INVITE session.
*
* @param call_id Call identification.
* @param is_typing Non-zero to indicate to remote that local person is
* currently typing an IM.
* @param msg_data Optional list of headers etc to be included in outgoing
* request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_send_typing_ind(pjsua_call_id call_id,
pj_bool_t is_typing,
const pjsua_msg_data*msg_data);
/**
* Send arbitrary request with the call. This is useful for example to send
* INFO request. Note that application should not use this function to send
* requests which would change the invite session's state, such as re-INVITE,
* UPDATE, PRACK, and BYE.
*
* @param call_id Call identification.
* @param method SIP method of the request.
* @param msg_data Optional message body and/or list of headers to be
* included in outgoing request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_call_send_request(pjsua_call_id call_id,
const pj_str_t *method,
const pjsua_msg_data *msg_data);
/**
* Terminate all calls. This will initiate #pjsua_call_hangup() for all
* currently active calls.
*/
PJ_DECL(void) pjsua_call_hangup_all(void);
/**
* Dump call and media statistics to string.
*
* @param call_id Call identification.
* @param with_media Non-zero to include media information too.
* @param buffer Buffer where the statistics are to be written to.
* @param maxlen Maximum length of buffer.
* @param indent Spaces for left indentation.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_call_dump(pjsua_call_id call_id,
pj_bool_t with_media,
char *buffer,
unsigned maxlen,
const char *indent);
/**
* Get the media stream index of the default video stream in the call.
* Typically this will just retrieve the stream index of the first
* activated video stream in the call. If none is active, it will return
* the first inactive video stream.
*
* @param call_id Call identification.
*
* @return The media stream index or -1 if no video stream
* is present in the call.
*/
PJ_DECL(int) pjsua_call_get_vid_stream_idx(pjsua_call_id call_id);
/**
* Determine if video stream for the specified call is currently running
* (i.e. has been created, started, and not being paused) for the specified
* direction.
*
* @param call_id Call identification.
* @param med_idx Media stream index, or -1 to specify default video
* media.
* @param dir The direction to be checked.
*
* @return PJ_TRUE if stream is currently running for the
* specified direction.
*/
PJ_DECL(pj_bool_t) pjsua_call_vid_stream_is_running(pjsua_call_id call_id,
int med_idx,
pjmedia_dir dir);
/**
* Add, remove, modify, and/or manipulate video media stream for the
* specified call. This may trigger a re-INVITE or UPDATE to be sent
* for the call.
*
* @param call_id Call identification.
* @param op The video stream operation to be performed,
* possible values are #pjsua_call_vid_strm_op.
* @param param The parameters for the video stream operation,
* or NULL for the default parameter values
* (see #pjsua_call_vid_strm_op_param).
*
* @return PJ_SUCCESS on success or the appropriate error.
*/
PJ_DECL(pj_status_t) pjsua_call_set_vid_strm (
pjsua_call_id call_id,
pjsua_call_vid_strm_op op,
const pjsua_call_vid_strm_op_param *param);
/**
* Get media stream info for the specified media index.
*
* @param call_id The call identification.
* @param med_idx Media stream index.
* @param psi To be filled with the stream info.
*
* @return PJ_SUCCESS on success or the appropriate error.
*/
PJ_DECL(pj_status_t) pjsua_call_get_stream_info(pjsua_call_id call_id,
unsigned med_idx,
pjsua_stream_info *psi);
/**
* Get media stream statistic for the specified media index.
*
* @param call_id The call identification.
* @param med_idx Media stream index.
* @param psi To be filled with the stream statistic.
*
* @return PJ_SUCCESS on success or the appropriate error.
*/
PJ_DECL(pj_status_t) pjsua_call_get_stream_stat(pjsua_call_id call_id,
unsigned med_idx,
pjsua_stream_stat *stat);
/**
* Get media transport info for the specified media index.
*
* @param call_id The call identification.
* @param med_idx Media stream index.
* @param t To be filled with the transport info.
*
* @return PJ_SUCCESS on success or the appropriate error.
*/
PJ_DECL(pj_status_t)
pjsua_call_get_med_transport_info(pjsua_call_id call_id,
unsigned med_idx,
pjmedia_transport_info *t);
/**
* @}
*/
/*****************************************************************************
* BUDDY API
*/
/**
* @defgroup PJSUA_LIB_BUDDY PJSUA-API Buddy, Presence, and Instant Messaging
* @ingroup PJSUA_LIB
* @brief Buddy management, buddy's presence, and instant messaging.
* @{
*
* This section describes PJSUA-APIs related to buddies management,
* presence management, and instant messaging.
*/
/**
* Max buddies in buddy list.
*/
#ifndef PJSUA_MAX_BUDDIES
# define PJSUA_MAX_BUDDIES 256
#endif
/**
* This specifies how long the library should wait before retrying failed
* SUBSCRIBE request, and there is no rule to automatically resubscribe
* (for example, no "retry-after" parameter in Subscription-State header).
*
* This also controls the duration before failed PUBLISH request will be
* retried.
*
* Default: 300 seconds
*/
#ifndef PJSUA_PRES_TIMER
# define PJSUA_PRES_TIMER 300
#endif
/**
* This structure describes buddy configuration when adding a buddy to
* the buddy list with #pjsua_buddy_add(). Application MUST initialize
* the structure with #pjsua_buddy_config_default() to initialize this
* structure with default configuration.
*/
typedef struct pjsua_buddy_config
{
/**
* Buddy URL or name address.
*/
pj_str_t uri;
/**
* Specify whether presence subscription should start immediately.
*/
pj_bool_t subscribe;
/**
* Specify arbitrary application data to be associated with with
* the buddy object.
*/
void *user_data;
} pjsua_buddy_config;
/**
* This enumeration describes basic buddy's online status.
*/
typedef enum pjsua_buddy_status
{
/**
* Online status is unknown (possibly because no presence subscription
* has been established).
*/
PJSUA_BUDDY_STATUS_UNKNOWN,
/**
* Buddy is known to be online.
*/
PJSUA_BUDDY_STATUS_ONLINE,
/**
* Buddy is offline.
*/
PJSUA_BUDDY_STATUS_OFFLINE,
} pjsua_buddy_status;
/**
* This structure describes buddy info, which can be retrieved by calling
* #pjsua_buddy_get_info().
*/
typedef struct pjsua_buddy_info
{
/**
* The buddy ID.
*/
pjsua_buddy_id id;
/**
* The full URI of the buddy, as specified in the configuration.
*/
pj_str_t uri;
/**
* Buddy's Contact, only available when presence subscription has
* been established to the buddy.
*/
pj_str_t contact;
/**
* Buddy's online status.
*/
pjsua_buddy_status status;
/**
* Text to describe buddy's online status.
*/
pj_str_t status_text;
/**
* Flag to indicate that we should monitor the presence information for
* this buddy (normally yes, unless explicitly disabled).
*/
pj_bool_t monitor_pres;
/**
* If \a monitor_pres is enabled, this specifies the last state of the
* presence subscription. If presence subscription session is currently
* active, the value will be PJSIP_EVSUB_STATE_ACTIVE. If presence
* subscription request has been rejected, the value will be
* PJSIP_EVSUB_STATE_TERMINATED, and the termination reason will be
* specified in \a sub_term_reason.
*/
pjsip_evsub_state sub_state;
/**
* String representation of subscription state.
*/
const char *sub_state_name;
/**
* Specifies the last presence subscription termination code. This would
* return the last status of the SUBSCRIBE request. If the subscription
* is terminated with NOTIFY by the server, this value will be set to
* 200, and subscription termination reason will be given in the
* \a sub_term_reason field.
*/
unsigned sub_term_code;
/**
* Specifies the last presence subscription termination reason. If
* presence subscription is currently active, the value will be empty.
*/
pj_str_t sub_term_reason;
/**
* Extended RPID information about the person.
*/
pjrpid_element rpid;
/**
* Extended presence info.
*/
pjsip_pres_status pres_status;
/**
* Internal buffer.
*/
char buf_[512];
} pjsua_buddy_info;
/**
* Set default values to the buddy config.
*/
PJ_DECL(void) pjsua_buddy_config_default(pjsua_buddy_config *cfg);
/**
* Get total number of buddies.
*
* @return Number of buddies.
*/
PJ_DECL(unsigned) pjsua_get_buddy_count(void);
/**
* Check if buddy ID is valid.
*
* @param buddy_id Buddy ID to check.
*
* @return Non-zero if buddy ID is valid.
*/
PJ_DECL(pj_bool_t) pjsua_buddy_is_valid(pjsua_buddy_id buddy_id);
/**
* Enumerate all buddy IDs in the buddy list. Application then can use
* #pjsua_buddy_get_info() to get the detail information for each buddy
* id.
*
* @param ids Array of ids to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_buddies(pjsua_buddy_id ids[],
unsigned *count);
/**
* Find the buddy ID with the specified URI.
*
* @param uri The buddy URI.
*
* @return The buddy ID, or PJSUA_INVALID_ID if not found.
*/
PJ_DECL(pjsua_buddy_id) pjsua_buddy_find(const pj_str_t *uri);
/**
* Get detailed buddy info.
*
* @param buddy_id The buddy identification.
* @param info Pointer to receive information about buddy.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_buddy_get_info(pjsua_buddy_id buddy_id,
pjsua_buddy_info *info);
/**
* Set the user data associated with the buddy object.
*
* @param buddy_id The buddy identification.
* @param user_data Arbitrary application data to be associated with
* the buddy object.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_buddy_set_user_data(pjsua_buddy_id buddy_id,
void *user_data);
/**
* Get the user data associated with the budy object.
*
* @param buddy_id The buddy identification.
*
* @return The application data.
*/
PJ_DECL(void*) pjsua_buddy_get_user_data(pjsua_buddy_id buddy_id);
/**
* Add new buddy to the buddy list. If presence subscription is enabled
* for this buddy, this function will also start the presence subscription
* session immediately.
*
* @param buddy_cfg Buddy configuration.
* @param p_buddy_id Pointer to receive buddy ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_buddy_add(const pjsua_buddy_config *buddy_cfg,
pjsua_buddy_id *p_buddy_id);
/**
* Delete the specified buddy from the buddy list. Any presence subscription
* to this buddy will be terminated.
*
* @param buddy_id Buddy identification.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_buddy_del(pjsua_buddy_id buddy_id);
/**
* Enable/disable buddy's presence monitoring. Once buddy's presence is
* subscribed, application will be informed about buddy's presence status
* changed via \a on_buddy_state() callback.
*
* @param buddy_id Buddy identification.
* @param subscribe Specify non-zero to activate presence subscription to
* the specified buddy.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_buddy_subscribe_pres(pjsua_buddy_id buddy_id,
pj_bool_t subscribe);
/**
* Update the presence information for the buddy. Although the library
* periodically refreshes the presence subscription for all buddies, some
* application may want to refresh the buddy's presence subscription
* immediately, and in this case it can use this function to accomplish
* this.
*
* Note that the buddy's presence subscription will only be initiated
* if presence monitoring is enabled for the buddy. See
* #pjsua_buddy_subscribe_pres() for more info. Also if presence subscription
* for the buddy is already active, this function will not do anything.
*
* Once the presence subscription is activated successfully for the buddy,
* application will be notified about the buddy's presence status in the
* on_buddy_state() callback.
*
* @param buddy_id Buddy identification.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_buddy_update_pres(pjsua_buddy_id buddy_id);
/**
* Send NOTIFY to inform account presence status or to terminate server
* side presence subscription. If application wants to reject the incoming
* request, it should set the \a state to PJSIP_EVSUB_STATE_TERMINATED.
*
* @param acc_id Account ID.
* @param srv_pres Server presence subscription instance.
* @param state New state to set.
* @param state_str Optionally specify the state string name, if state
* is not "active", "pending", or "terminated".
* @param reason If the new state is PJSIP_EVSUB_STATE_TERMINATED,
* optionally specify the termination reason.
* @param with_body If the new state is PJSIP_EVSUB_STATE_TERMINATED,
* this specifies whether the NOTIFY request should
* contain message body containing account's presence
* information.
* @param msg_data Optional list of headers to be sent with the NOTIFY
* request.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_pres_notify(pjsua_acc_id acc_id,
pjsua_srv_pres *srv_pres,
pjsip_evsub_state state,
const pj_str_t *state_str,
const pj_str_t *reason,
pj_bool_t with_body,
const pjsua_msg_data *msg_data);
/**
* Dump presence subscriptions to log.
*
* @param verbose Yes or no.
*/
PJ_DECL(void) pjsua_pres_dump(pj_bool_t verbose);
/**
* The MESSAGE method (defined in pjsua_im.c)
*/
extern const pjsip_method pjsip_message_method;
/**
* The INFO method (defined in pjsua_call.c)
*/
extern const pjsip_method pjsip_info_method;
/**
* Send instant messaging outside dialog, using the specified account for
* route set and authentication.
*
* @param acc_id Account ID to be used to send the request.
* @param to Remote URI.
* @param mime_type Optional MIME type. If NULL, then "text/plain" is
* assumed.
* @param content The message content.
* @param msg_data Optional list of headers etc to be included in outgoing
* request. The body descriptor in the msg_data is
* ignored.
* @param user_data Optional user data, which will be given back when
* the IM callback is called.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_im_send(pjsua_acc_id acc_id,
const pj_str_t *to,
const pj_str_t *mime_type,
const pj_str_t *content,
const pjsua_msg_data *msg_data,
void *user_data);
/**
* Send typing indication outside dialog.
*
* @param acc_id Account ID to be used to send the request.
* @param to Remote URI.
* @param is_typing If non-zero, it tells remote person that local person
* is currently composing an IM.
* @param msg_data Optional list of headers etc to be added to outgoing
* request.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_im_typing(pjsua_acc_id acc_id,
const pj_str_t *to,
pj_bool_t is_typing,
const pjsua_msg_data *msg_data);
/**
* @}
*/
/*****************************************************************************
* MEDIA API
*/
/**
* @defgroup PJSUA_LIB_MEDIA PJSUA-API Media Manipulation
* @ingroup PJSUA_LIB
* @brief Media manipulation.
* @{
*
* PJSUA has rather powerful media features, which are built around the
* PJMEDIA conference bridge. Basically, all media "ports" (such as calls, WAV
* players, WAV playlist, file recorders, sound device, tone generators, etc)
* are terminated in the conference bridge, and application can manipulate
* the interconnection between these terminations freely.
*
* The conference bridge provides powerful switching and mixing functionality
* for application. With the conference bridge, each conference slot (e.g.
* a call) can transmit to multiple destinations, and one destination can
* receive from multiple sources. If more than one media terminations are
* terminated in the same slot, the conference bridge will mix the signal
* automatically.
*
* Application connects one media termination/slot to another by calling
* #pjsua_conf_connect() function. This will establish <b>unidirectional</b>
* media flow from the source termination to the sink termination. To
* establish bidirectional media flow, application wound need to make another
* call to #pjsua_conf_connect(), this time inverting the source and
* destination slots in the parameter.
*
* For example, to stream a WAV file to remote call, application may use
* the following steps:
*
\code
pj_status_t stream_to_call( pjsua_call_id call_id )
{
pjsua_player_id player_id;
status = pjsua_player_create("mysong.wav", 0, &player_id);
if (status != PJ_SUCCESS)
return status;
status = pjsua_conf_connect( pjsua_player_get_conf_port(),
pjsua_call_get_conf_port() );
}
\endcode
*
*
* Other features of PJSUA media:
* - efficient N to M interconnections between media terminations.
* - media termination can be connected to itself to create loopback
* media.
* - the media termination may have different clock rates, and resampling
* will be done automatically by conference bridge.
* - media terminations may also have different frame time; the
* conference bridge will perform the necessary bufferring to adjust
* the difference between terminations.
* - interconnections are removed automatically when media termination
* is removed from the bridge.
* - sound device may be changed even when there are active media
* interconnections.
* - correctly report call's media quality (in #pjsua_call_dump()) from
* RTCP packet exchange.
*/
/**
* Use PJMEDIA for media? Set this to zero when using third party media
* stack.
*/
#ifndef PJSUA_MEDIA_HAS_PJMEDIA
# define PJSUA_MEDIA_HAS_PJMEDIA 1
#endif /* PJSUA_MEDIA_HAS_PJMEDIA */
/**
* Max ports in the conference bridge. This setting is the default value
* for pjsua_media_config.max_media_ports.
*/
#ifndef PJSUA_MAX_CONF_PORTS
# define PJSUA_MAX_CONF_PORTS 254
#endif
/**
* The default clock rate to be used by the conference bridge. This setting
* is the default value for pjsua_media_config.clock_rate.
*/
#ifndef PJSUA_DEFAULT_CLOCK_RATE
# define PJSUA_DEFAULT_CLOCK_RATE 16000
#endif
/**
* Default frame length in the conference bridge. This setting
* is the default value for pjsua_media_config.audio_frame_ptime.
*/
#ifndef PJSUA_DEFAULT_AUDIO_FRAME_PTIME
# define PJSUA_DEFAULT_AUDIO_FRAME_PTIME 20
#endif
/**
* Default codec quality settings. This setting is the default value
* for pjsua_media_config.quality.
*/
#ifndef PJSUA_DEFAULT_CODEC_QUALITY
# define PJSUA_DEFAULT_CODEC_QUALITY 8
#endif
/**
* Default iLBC mode. This setting is the default value for
* pjsua_media_config.ilbc_mode.
*/
#ifndef PJSUA_DEFAULT_ILBC_MODE
# define PJSUA_DEFAULT_ILBC_MODE 30
#endif
/**
* The default echo canceller tail length. This setting
* is the default value for pjsua_media_config.ec_tail_len.
*/
#ifndef PJSUA_DEFAULT_EC_TAIL_LEN
# define PJSUA_DEFAULT_EC_TAIL_LEN 200
#endif
/**
* The maximum file player.
*/
#ifndef PJSUA_MAX_PLAYERS
# define PJSUA_MAX_PLAYERS 32
#endif
/**
* The maximum file player.
*/
#ifndef PJSUA_MAX_RECORDERS
# define PJSUA_MAX_RECORDERS 32
#endif
/**
* This structure describes media configuration, which will be specified
* when calling #pjsua_init(). Application MUST initialize this structure
* by calling #pjsua_media_config_default().
*/
struct pjsua_media_config
{
/**
* Clock rate to be applied to the conference bridge.
* If value is zero, default clock rate will be used
* (PJSUA_DEFAULT_CLOCK_RATE, which by default is 16KHz).
*/
unsigned clock_rate;
/**
* Clock rate to be applied when opening the sound device.
* If value is zero, conference bridge clock rate will be used.
*/
unsigned snd_clock_rate;
/**
* Channel count be applied when opening the sound device and
* conference bridge.
*/
unsigned channel_count;
/**
* Specify audio frame ptime. The value here will affect the
* samples per frame of both the sound device and the conference
* bridge. Specifying lower ptime will normally reduce the
* latency.
*
* Default value: PJSUA_DEFAULT_AUDIO_FRAME_PTIME
*/
unsigned audio_frame_ptime;
/**
* Specify maximum number of media ports to be created in the
* conference bridge. Since all media terminate in the bridge
* (calls, file player, file recorder, etc), the value must be
* large enough to support all of them. However, the larger
* the value, the more computations are performed.
*
* Default value: PJSUA_MAX_CONF_PORTS
*/
unsigned max_media_ports;
/**
* Specify whether the media manager should manage its own
* ioqueue for the RTP/RTCP sockets. If yes, ioqueue will be created
* and at least one worker thread will be created too. If no,
* the RTP/RTCP sockets will share the same ioqueue as SIP sockets,
* and no worker thread is needed.
*
* Normally application would say yes here, unless it wants to
* run everything from a single thread.
*/
pj_bool_t has_ioqueue;
/**
* Specify the number of worker threads to handle incoming RTP
* packets. A value of one is recommended for most applications.
*/
unsigned thread_cnt;
/**
* Media quality, 0-10, according to this table:
* 5-10: resampling use large filter,
* 3-4: resampling use small filter,
* 1-2: resampling use linear.
* The media quality also sets speex codec quality/complexity to the
* number.
*
* Default: 5 (PJSUA_DEFAULT_CODEC_QUALITY).
*/
unsigned quality;
/**
* Specify default codec ptime.
*
* Default: 0 (codec specific)
*/
unsigned ptime;
/**
* Disable VAD?
*
* Default: 0 (no (meaning VAD is enabled))
*/
pj_bool_t no_vad;
/**
* iLBC mode (20 or 30).
*
* Default: 30 (PJSUA_DEFAULT_ILBC_MODE)
*/
unsigned ilbc_mode;
/**
* Percentage of RTP packet to drop in TX direction
* (to simulate packet lost).
*
* Default: 0
*/
unsigned tx_drop_pct;
/**
* Percentage of RTP packet to drop in RX direction
* (to simulate packet lost).
*
* Default: 0
*/
unsigned rx_drop_pct;
/**
* Echo canceller options (see #pjmedia_echo_create())
*
* Default: 0.
*/
unsigned ec_options;
/**
* Echo canceller tail length, in miliseconds.
*
* Default: PJSUA_DEFAULT_EC_TAIL_LEN
*/
unsigned ec_tail_len;
/**
* Audio capture buffer length, in milliseconds.
*
* Default: PJMEDIA_SND_DEFAULT_REC_LATENCY
*/
unsigned snd_rec_latency;
/**
* Audio playback buffer length, in milliseconds.
*
* Default: PJMEDIA_SND_DEFAULT_PLAY_LATENCY
*/
unsigned snd_play_latency;
/**
* Jitter buffer initial prefetch delay in msec. The value must be
* between jb_min_pre and jb_max_pre below.
*
* Default: -1 (to use default stream settings, currently 150 msec)
*/
int jb_init;
/**
* Jitter buffer minimum prefetch delay in msec.
*
* Default: -1 (to use default stream settings, currently 60 msec)
*/
int jb_min_pre;
/**
* Jitter buffer maximum prefetch delay in msec.
*
* Default: -1 (to use default stream settings, currently 240 msec)
*/
int jb_max_pre;
/**
* Set maximum delay that can be accomodated by the jitter buffer msec.
*
* Default: -1 (to use default stream settings, currently 360 msec)
*/
int jb_max;
/**
* Enable ICE
*/
pj_bool_t enable_ice;
/**
* Set the maximum number of host candidates.
*
* Default: -1 (maximum not set)
*/
int ice_max_host_cands;
/**
* ICE session options.
*/
pj_ice_sess_options ice_opt;
/**
* Disable RTCP component.
*
* Default: no
*/
pj_bool_t ice_no_rtcp;
/**
* Enable TURN relay candidate in ICE.
*/
pj_bool_t enable_turn;
/**
* Specify TURN domain name or host name, in in "DOMAIN:PORT" or
* "HOST:PORT" format.
*/
pj_str_t turn_server;
/**
* Specify the connection type to be used to the TURN server. Valid
* values are PJ_TURN_TP_UDP or PJ_TURN_TP_TCP.
*
* Default: PJ_TURN_TP_UDP
*/
pj_turn_tp_type turn_conn_type;
/**
* Specify the credential to authenticate with the TURN server.
*/
pj_stun_auth_cred turn_auth_cred;
/**
* Specify idle time of sound device before it is automatically closed,
* in seconds. Use value -1 to disable the auto-close feature of sound
* device
*
* Default : 1
*/
int snd_auto_close_time;
/**
* Specify whether built-in/native preview should be used if available.
* In some systems, video input devices have built-in capability to show
* preview window of the device. Using this built-in preview is preferable
* as it consumes less CPU power. If built-in preview is not available,
* the library will perform software rendering of the input. If this
* field is set to PJ_FALSE, software preview will always be used.
*
* Default: PJ_TRUE
*/
pj_bool_t vid_preview_enable_native;
};
/**
* Use this function to initialize media config.
*
* @param cfg The media config to be initialized.
*/
PJ_DECL(void) pjsua_media_config_default(pjsua_media_config *cfg);
/**
* This structure describes codec information, which can be retrieved by
* calling #pjsua_enum_codecs().
*/
typedef struct pjsua_codec_info
{
/**
* Codec unique identification.
*/
pj_str_t codec_id;
/**
* Codec priority (integer 0-255).
*/
pj_uint8_t priority;
/**
* Codec description.
*/
pj_str_t desc;
/**
* Internal buffer.
*/
char buf_[64];
} pjsua_codec_info;
/**
* This structure descibes information about a particular media port that
* has been registered into the conference bridge. Application can query
* this info by calling #pjsua_conf_get_port_info().
*/
typedef struct pjsua_conf_port_info
{
/** Conference port number. */
pjsua_conf_port_id slot_id;
/** Port name. */
pj_str_t name;
/** Clock rate. */
unsigned clock_rate;
/** Number of channels. */
unsigned channel_count;
/** Samples per frame */
unsigned samples_per_frame;
/** Bits per sample */
unsigned bits_per_sample;
/** Number of listeners in the array. */
unsigned listener_cnt;
/** Array of listeners (in other words, ports where this port is
* transmitting to.
*/
pjsua_conf_port_id listeners[PJSUA_MAX_CONF_PORTS];
} pjsua_conf_port_info;
/**
* This structure holds information about custom media transport to
* be registered to pjsua.
*/
typedef struct pjsua_media_transport
{
/**
* Media socket information containing the address information
* of the RTP and RTCP socket.
*/
pjmedia_sock_info skinfo;
/**
* The media transport instance.
*/
pjmedia_transport *transport;
} pjsua_media_transport;
/**
* Get maxinum number of conference ports.
*
* @return Maximum number of ports in the conference bridge.
*/
PJ_DECL(unsigned) pjsua_conf_get_max_ports(void);
/**
* Get current number of active ports in the bridge.
*
* @return The number.
*/
PJ_DECL(unsigned) pjsua_conf_get_active_ports(void);
/**
* Enumerate all conference ports.
*
* @param id Array of conference port ID to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_conf_ports(pjsua_conf_port_id id[],
unsigned *count);
/**
* Get information about the specified conference port
*
* @param port_id Port identification.
* @param info Pointer to store the port info.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_get_port_info( pjsua_conf_port_id port_id,
pjsua_conf_port_info *info);
/**
* Add arbitrary media port to PJSUA's conference bridge. Application
* can use this function to add the media port that it creates. For
* media ports that are created by PJSUA-LIB (such as calls, file player,
* or file recorder), PJSUA-LIB will automatically add the port to
* the bridge.
*
* @param pool Pool to use.
* @param port Media port to be added to the bridge.
* @param p_id Optional pointer to receive the conference
* slot id.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_add_port(pj_pool_t *pool,
pjmedia_port *port,
pjsua_conf_port_id *p_id);
/**
* Remove arbitrary slot from the conference bridge. Application should only
* call this function if it registered the port manually with previous call
* to #pjsua_conf_add_port().
*
* @param port_id The slot id of the port to be removed.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_remove_port(pjsua_conf_port_id port_id);
/**
* Establish unidirectional media flow from souce to sink. One source
* may transmit to multiple destinations/sink. And if multiple
* sources are transmitting to the same sink, the media will be mixed
* together. Source and sink may refer to the same ID, effectively
* looping the media.
*
* If bidirectional media flow is desired, application needs to call
* this function twice, with the second one having the arguments
* reversed.
*
* @param source Port ID of the source media/transmitter.
* @param sink Port ID of the destination media/received.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_connect(pjsua_conf_port_id source,
pjsua_conf_port_id sink);
/**
* Disconnect media flow from the source to destination port.
*
* @param source Port ID of the source media/transmitter.
* @param sink Port ID of the destination media/received.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_disconnect(pjsua_conf_port_id source,
pjsua_conf_port_id sink);
/**
* Adjust the signal level to be transmitted from the bridge to the
* specified port by making it louder or quieter.
*
* @param slot The conference bridge slot number.
* @param level Signal level adjustment. Value 1.0 means no level
* adjustment, while value 0 means to mute the port.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_adjust_tx_level(pjsua_conf_port_id slot,
float level);
/**
* Adjust the signal level to be received from the specified port (to
* the bridge) by making it louder or quieter.
*
* @param slot The conference bridge slot number.
* @param level Signal level adjustment. Value 1.0 means no level
* adjustment, while value 0 means to mute the port.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_conf_adjust_rx_level(pjsua_conf_port_id slot,
float level);
/**
* Get last signal level transmitted to or received from the specified port.
* The signal level is an integer value in zero to 255, with zero indicates
* no signal, and 255 indicates the loudest signal level.
*
* @param slot The conference bridge slot number.
* @param tx_level Optional argument to receive the level of signal
* transmitted to the specified port (i.e. the direction
* is from the bridge to the port).
* @param rx_level Optional argument to receive the level of signal
* received from the port (i.e. the direction is from the
* port to the bridge).
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_conf_get_signal_level(pjsua_conf_port_id slot,
unsigned *tx_level,
unsigned *rx_level);
/*****************************************************************************
* File player and playlist.
*/
/**
* Create a file player, and automatically add this player to
* the conference bridge.
*
* @param filename The filename to be played. Currently only
* WAV files are supported, and the WAV file MUST be
* formatted as 16bit PCM mono/single channel (any
* clock rate is supported).
* @param options Optional option flag. Application may specify
* PJMEDIA_FILE_NO_LOOP to prevent playback loop.
* @param p_id Pointer to receive player ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_player_create(const pj_str_t *filename,
unsigned options,
pjsua_player_id *p_id);
/**
* Create a file playlist media port, and automatically add the port
* to the conference bridge.
*
* @param file_names Array of file names to be added to the play list.
* Note that the files must have the same clock rate,
* number of channels, and number of bits per sample.
* @param file_count Number of files in the array.
* @param label Optional label to be set for the media port.
* @param options Optional option flag. Application may specify
* PJMEDIA_FILE_NO_LOOP to prevent looping.
* @param p_id Optional pointer to receive player ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_playlist_create(const pj_str_t file_names[],
unsigned file_count,
const pj_str_t *label,
unsigned options,
pjsua_player_id *p_id);
/**
* Get conference port ID associated with player or playlist.
*
* @param id The file player ID.
*
* @return Conference port ID associated with this player.
*/
PJ_DECL(pjsua_conf_port_id) pjsua_player_get_conf_port(pjsua_player_id id);
/**
* Get the media port for the player or playlist.
*
* @param id The player ID.
* @param p_port The media port associated with the player.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_player_get_port(pjsua_player_id id,
pjmedia_port **p_port);
/**
* Set playback position. This operation is not valid for playlist.
*
* @param id The file player ID.
* @param samples The playback position, in samples. Application can
* specify zero to re-start the playback.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_player_set_pos(pjsua_player_id id,
pj_uint32_t samples);
/**
* Close the file of playlist, remove the player from the bridge, and free
* resources associated with the file player or playlist.
*
* @param id The file player ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_player_destroy(pjsua_player_id id);
/*****************************************************************************
* File recorder.
*/
/**
* Create a file recorder, and automatically connect this recorder to
* the conference bridge. The recorder currently supports recording WAV file.
* The type of the recorder to use is determined by the extension of the file
* (e.g. ".wav").
*
* @param filename Output file name. The function will determine the
* default format to be used based on the file extension.
* Currently ".wav" is supported on all platforms.
* @param enc_type Optionally specify the type of encoder to be used to
* compress the media, if the file can support different
* encodings. This value must be zero for now.
* @param enc_param Optionally specify codec specific parameter to be
* passed to the file writer.
* For .WAV recorder, this value must be NULL.
* @param max_size Maximum file size. Specify zero or -1 to remove size
* limitation. This value must be zero or -1 for now.
* @param options Optional options.
* @param p_id Pointer to receive the recorder instance.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_recorder_create(const pj_str_t *filename,
unsigned enc_type,
void *enc_param,
pj_ssize_t max_size,
unsigned options,
pjsua_recorder_id *p_id);
/**
* Get conference port associated with recorder.
*
* @param id The recorder ID.
*
* @return Conference port ID associated with this recorder.
*/
PJ_DECL(pjsua_conf_port_id) pjsua_recorder_get_conf_port(pjsua_recorder_id id);
/**
* Get the media port for the recorder.
*
* @param id The recorder ID.
* @param p_port The media port associated with the recorder.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_recorder_get_port(pjsua_recorder_id id,
pjmedia_port **p_port);
/**
* Destroy recorder (this will complete recording).
*
* @param id The recorder ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_recorder_destroy(pjsua_recorder_id id);
/*****************************************************************************
* Sound devices.
*/
/**
* Enum all audio devices installed in the system.
*
* @param info Array of info to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_aud_devs(pjmedia_aud_dev_info info[],
unsigned *count);
/**
* Enum all sound devices installed in the system (old API).
*
* @param info Array of info to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_snd_devs(pjmedia_snd_dev_info info[],
unsigned *count);
/**
* Get currently active sound devices. If sound devices has not been created
* (for example when pjsua_start() is not called), it is possible that
* the function returns PJ_SUCCESS with -1 as device IDs.
*
* @param capture_dev On return it will be filled with device ID of the
* capture device.
* @param playback_dev On return it will be filled with device ID of the
* device ID of the playback device.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_get_snd_dev(int *capture_dev,
int *playback_dev);
/**
* Select or change sound device. Application may call this function at
* any time to replace current sound device.
*
* @param capture_dev Device ID of the capture device.
* @param playback_dev Device ID of the playback device.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_set_snd_dev(int capture_dev,
int playback_dev);
/**
* Set pjsua to use null sound device. The null sound device only provides
* the timing needed by the conference bridge, and will not interract with
* any hardware.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_set_null_snd_dev(void);
/**
* Disconnect the main conference bridge from any sound devices, and let
* application connect the bridge to it's own sound device/master port.
*
* @return The port interface of the conference bridge,
* so that application can connect this to it's own
* sound device or master port.
*/
PJ_DECL(pjmedia_port*) pjsua_set_no_snd_dev(void);
/**
* Change the echo cancellation settings.
*
* The behavior of this function depends on whether the sound device is
* currently active, and if it is, whether device or software AEC is
* being used.
*
* If the sound device is currently active, and if the device supports AEC,
* this function will forward the change request to the device and it will
* be up to the device on whether support the request. If software AEC is
* being used (the software EC will be used if the device does not support
* AEC), this function will change the software EC settings. In all cases,
* the setting will be saved for future opening of the sound device.
*
* If the sound device is not currently active, this will only change the
* default AEC settings and the setting will be applied next time the
* sound device is opened.
*
* @param tail_ms The tail length, in miliseconds. Set to zero to
* disable AEC.
* @param options Options to be passed to pjmedia_echo_create().
* Normally the value should be zero.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_set_ec(unsigned tail_ms, unsigned options);
/**
* Get current echo canceller tail length.
*
* @param p_tail_ms Pointer to receive the tail length, in miliseconds.
* If AEC is disabled, the value will be zero.
*
* @return PJ_SUCCESS on success.
*/
PJ_DECL(pj_status_t) pjsua_get_ec_tail(unsigned *p_tail_ms);
/**
* Check whether the sound device is currently active. The sound device
* may be inactive if the application has set the auto close feature to
* non-zero (the snd_auto_close_time setting in #pjsua_media_config), or
* if null sound device or no sound device has been configured via the
* #pjsua_set_no_snd_dev() function.
*/
PJ_DECL(pj_bool_t) pjsua_snd_is_active(void);
/**
* Configure sound device setting to the sound device being used. If sound
* device is currently active, the function will forward the setting to the
* sound device instance to be applied immediately, if it supports it.
*
* The setting will be saved for future opening of the sound device, if the
* "keep" argument is set to non-zero. If the sound device is currently
* inactive, and the "keep" argument is false, this function will return
* error.
*
* Note that in case the setting is kept for future use, it will be applied
* to any devices, even when application has changed the sound device to be
* used.
*
* Note also that the echo cancellation setting should be set with
* #pjsua_set_ec() API instead.
*
* See also #pjmedia_aud_stream_set_cap() for more information about setting
* an audio device capability.
*
* @param cap The sound device setting to change.
* @param pval Pointer to value. Please see #pjmedia_aud_dev_cap
* documentation about the type of value to be
* supplied for each setting.
* @param keep Specify whether the setting is to be kept for future
* use.
*
* @return PJ_SUCCESS on success or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_snd_set_setting(pjmedia_aud_dev_cap cap,
const void *pval,
pj_bool_t keep);
/**
* Retrieve a sound device setting. If sound device is currently active,
* the function will forward the request to the sound device. If sound device
* is currently inactive, and if application had previously set the setting
* and mark the setting as kept, then that setting will be returned.
* Otherwise, this function will return error.
*
* Note that echo cancellation settings should be retrieved with
* #pjsua_get_ec_tail() API instead.
*
* @param cap The sound device setting to retrieve.
* @param pval Pointer to receive the value.
* Please see #pjmedia_aud_dev_cap documentation about
* the type of value to be supplied for each setting.
*
* @return PJ_SUCCESS on success or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_snd_get_setting(pjmedia_aud_dev_cap cap,
void *pval);
/*****************************************************************************
* Codecs.
*/
/**
* Enum all supported codecs in the system.
*
* @param id Array of ID to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_enum_codecs( pjsua_codec_info id[],
unsigned *count );
/**
* Change codec priority.
*
* @param codec_id Codec ID, which is a string that uniquely identify
* the codec (such as "speex/8000"). Please see pjsua
* manual or pjmedia codec reference for details.
* @param priority Codec priority, 0-255, where zero means to disable
* the codec.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_codec_set_priority( const pj_str_t *codec_id,
pj_uint8_t priority );
/**
* Get codec parameters.
*
* @param codec_id Codec ID.
* @param param Structure to receive codec parameters.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_codec_get_param( const pj_str_t *codec_id,
pjmedia_codec_param *param );
/**
* Set codec parameters.
*
* @param codec_id Codec ID.
* @param param Codec parameter to set. Set to NULL to reset
* codec parameter to library default settings.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_codec_set_param( const pj_str_t *codec_id,
const pjmedia_codec_param *param);
#if DISABLED_FOR_TICKET_1185
/**
* Create UDP media transports for all the calls. This function creates
* one UDP media transport for each call.
*
* @param cfg Media transport configuration. The "port" field in the
* configuration is used as the start port to bind the
* sockets.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t)
pjsua_media_transports_create(const pjsua_transport_config *cfg);
/**
* Register custom media transports to be used by calls. There must
* enough media transports for all calls.
*
* @param tp The media transport array.
* @param count Number of elements in the array. This number MUST
* match the number of maximum calls configured when
* pjsua is created.
* @param auto_delete Flag to indicate whether the transports should be
* destroyed when pjsua is shutdown.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t)
pjsua_media_transports_attach( pjsua_media_transport tp[],
unsigned count,
pj_bool_t auto_delete);
#endif
/* end of MEDIA API */
/**
* @}
*/
/*****************************************************************************
* VIDEO API
*/
/**
* @defgroup PJSUA_LIB_VIDEO PJSUA-API Video
* @ingroup PJSUA_LIB
* @brief Video support
* @{
*/
/*
* Video devices API
*/
/**
* Get the number of video devices installed in the system.
*
* @return The number of devices.
*/
PJ_DECL(unsigned) pjsua_vid_dev_count(void);
/**
* Retrieve the video device info for the specified device index.
*
* @param id The device index.
* @param vdi Device info to be initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_dev_get_info(pjmedia_vid_dev_index id,
pjmedia_vid_dev_info *vdi);
/**
* Enum all video devices installed in the system.
*
* @param info Array of info to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_enum_devs(pjmedia_vid_dev_info info[],
unsigned *count);
/*
* Video preview API
*/
/**
* Parameters for starting video preview with pjsua_vid_preview_start().
* Application should initialize this structure with
* pjsua_vid_preview_param_default().
*/
typedef struct pjsua_vid_preview_param
{
/**
* Device ID for the video renderer to be used for rendering the
* capture stream for preview. This parameter is ignored if native
* preview is being used.
*
* Default: PJMEDIA_VID_DEFAULT_RENDER_DEV
*/
pjmedia_vid_dev_index rend_id;
/**
* Show window initially.
*
* Default: PJ_TRUE.
*/
pj_bool_t show;
/**
* Window flags. The value is a bitmask combination of
* #pjmedia_vid_dev_wnd_flag.
*
* Default: 0.
*/
unsigned wnd_flags;
} pjsua_vid_preview_param;
/**
* Initialize pjsua_vid_preview_param
*
* @param p The parameter to be initialized.
*/
PJ_DECL(void) pjsua_vid_preview_param_default(pjsua_vid_preview_param *p);
/**
* Determine if the specified video input device has built-in native
* preview capability. This is a convenience function that is equal to
* querying device's capability for PJMEDIA_VID_DEV_CAP_INPUT_PREVIEW
* capability.
*
* @param id The capture device ID.
*
* @return PJ_TRUE if it has.
*/
PJ_DECL(pj_bool_t) pjsua_vid_preview_has_native(pjmedia_vid_dev_index id);
/**
* Start video preview window for the specified capture device.
*
* @param id The capture device ID where its preview will be
* started.
* @param p Optional video preview parameters. Specify NULL
* to use default values.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_preview_start(pjmedia_vid_dev_index id,
const pjsua_vid_preview_param *p);
/**
* Get the preview window handle associated with the capture device, if any.
*
* @param id The capture device ID.
*
* @return The window ID of the preview window for the
* specified capture device ID, or PJSUA_INVALID_ID if
* preview has not been started for the device.
*/
PJ_DECL(pjsua_vid_win_id) pjsua_vid_preview_get_win(pjmedia_vid_dev_index id);
/**
* Stop video preview.
*
* @param id The capture device ID.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_preview_stop(pjmedia_vid_dev_index id);
/*
* Video window manipulation API.
*/
/**
* This structure describes video window info.
*/
typedef struct pjsua_vid_win_info
{
/**
* Flag to indicate whether this window is a native window,
* such as created by built-in preview device. If this field is
* PJ_TRUE, only the native window handle field of this
* structure is valid.
*/
pj_bool_t is_native;
/**
* Native window handle.
*/
pjmedia_vid_dev_hwnd hwnd;
/**
* Renderer device ID.
*/
pjmedia_vid_dev_index rdr_dev;
/**
* Window show status. The window is hidden if false.
*/
pj_bool_t show;
/**
* Window position.
*/
pjmedia_coord pos;
/**
* Window size.
*/
pjmedia_rect_size size;
} pjsua_vid_win_info;
/**
* Enumerates all video windows.
*
* @param id Array of window ID to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_enum_wins(pjsua_vid_win_id wids[],
unsigned *count);
/**
* Get window info.
*
* @param wid The video window ID.
* @param wi The video window info to be initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_win_get_info(pjsua_vid_win_id wid,
pjsua_vid_win_info *wi);
/**
* Show or hide window. This operation is not valid for native windows
* (pjsua_vid_win_info.is_native=PJ_TRUE), on which native windowing API
* must be used instead.
*
* @param wid The video window ID.
* @param show Set to PJ_TRUE to show the window, PJ_FALSE to
* hide the window.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_win_set_show(pjsua_vid_win_id wid,
pj_bool_t show);
/**
* Set video window position. This operation is not valid for native windows
* (pjsua_vid_win_info.is_native=PJ_TRUE), on which native windowing API
* must be used instead.
*
* @param wid The video window ID.
* @param pos The window position.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_win_set_pos(pjsua_vid_win_id wid,
const pjmedia_coord *pos);
/**
* Resize window. This operation is not valid for native windows
* (pjsua_vid_win_info.is_native=PJ_TRUE), on which native windowing API
* must be used instead.
*
* @param wid The video window ID.
* @param size The new window size.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_win_set_size(pjsua_vid_win_id wid,
const pjmedia_rect_size *size);
/**
* Rotate the video window. This function will change the video orientation
* and also possibly the video window size (width and height get swapped).
* This operation is not valid for native windows (pjsua_vid_win_info.is_native
* =PJ_TRUE), on which native windowing API must be used instead.
*
* @param wid The video window ID.
* @param angle The rotation angle in degrees, must be multiple of 90.
* Specify positive value for clockwise rotation or
* negative value for counter-clockwise rotation.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_win_rotate(pjsua_vid_win_id wid,
int angle);
/*
* Video codecs API
*/
/**
* Enum all supported video codecs in the system.
*
* @param id Array of ID to be initialized.
* @param count On input, specifies max elements in the array.
* On return, it contains actual number of elements
* that have been initialized.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_enum_codecs( pjsua_codec_info id[],
unsigned *count );
/**
* Change video codec priority.
*
* @param codec_id Codec ID, which is a string that uniquely identify
* the codec (such as "H263/90000"). Please see pjsua
* manual or pjmedia codec reference for details.
* @param priority Codec priority, 0-255, where zero means to disable
* the codec.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_codec_set_priority( const pj_str_t *codec_id,
pj_uint8_t priority );
/**
* Get video codec parameters.
*
* @param codec_id Codec ID.
* @param param Structure to receive video codec parameters.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_codec_get_param(
const pj_str_t *codec_id,
pjmedia_vid_codec_param *param);
/**
* Set video codec parameters.
*
* @param codec_id Codec ID.
* @param param Codec parameter to set. Set to NULL to reset
* codec parameter to library default settings.
*
* @return PJ_SUCCESS on success, or the appropriate error code.
*/
PJ_DECL(pj_status_t) pjsua_vid_codec_set_param(
const pj_str_t *codec_id,
const pjmedia_vid_codec_param *param);
/* end of VIDEO API */
/**
* @}
*/
/**
* @}
*/
PJ_END_DECL
#endif /* __PJSUA_H__ */
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