asterisk/apps/confbridge/include/confbridge.h

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2011, Digium, Inc.
*
* David Vossel <dvossel@digium.com>
* Joshua Colp <jcolp@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
#ifndef _CONFBRIDGE_H
#define _CONFBRIDGE_H
#include "asterisk.h"
#include "asterisk/app.h"
#include "asterisk/logger.h"
#include "asterisk/linkedlists.h"
#include "asterisk/channel.h"
#include "asterisk/bridge.h"
#include "asterisk/bridge_features.h"
#include "asterisk/stasis_bridges.h"
#include "conf_state.h"
/*! Maximum length of a conference bridge name */
#define MAX_CONF_NAME AST_MAX_EXTENSION
/*! Maximum length of a conference pin */
#define MAX_PIN 80
/*! Maximum length of bridge/user/menu profile names */
#define MAX_PROFILE_NAME 128
#define DEFAULT_USER_PROFILE "default_user"
#define DEFAULT_BRIDGE_PROFILE "default_bridge"
#define DEFAULT_MENU_PROFILE "default_menu"
/*! Default minimum average magnitude threshold to determine talking by the DSP. */
#define DEFAULT_TALKING_THRESHOLD 160
/*! Default time in ms of silence necessary to declare talking stopped by the bridge. */
#define DEFAULT_SILENCE_THRESHOLD 2500
enum user_profile_flags {
USER_OPT_ADMIN = (1 << 0), /*!< Set if the caller is an administrator */
USER_OPT_NOONLYPERSON = (1 << 1), /*!< Set if the "you are currently the only person in this conference" sound file should not be played */
USER_OPT_MARKEDUSER = (1 << 2), /*!< Set if the caller is a marked user */
USER_OPT_STARTMUTED = (1 << 3), /*!< Set if the caller should be initially set muted */
USER_OPT_MUSICONHOLD = (1 << 4), /*!< Set if music on hold should be played if nobody else is in the conference bridge */
USER_OPT_QUIET = (1 << 5), /*!< Set if no audio prompts should be played */
USER_OPT_ANNOUNCEUSERCOUNT = (1 << 6), /*!< Set if the number of users should be announced to the caller */
USER_OPT_WAITMARKED = (1 << 7), /*!< Set if the user must wait for a marked user before starting */
USER_OPT_ENDMARKED = (1 << 8), /*!< Set if the user should be kicked after the last Marked user exits */
USER_OPT_DENOISE = (1 << 9), /*!< Sets if denoise filter should be used on audio before mixing. */
USER_OPT_ANNOUNCE_JOIN_LEAVE = (1 << 10), /*!< Sets if the user's name should be recorded and announced on join and leave. */
USER_OPT_TALKER_DETECT = (1 << 11), /*!< Sets if start and stop talking events should generated for this user over AMI. */
USER_OPT_DROP_SILENCE = (1 << 12), /*!< Sets if silence should be dropped from the mix or not. */
USER_OPT_DTMF_PASS = (1 << 13), /*!< Sets if dtmf should be passed into the conference or not */
USER_OPT_ANNOUNCEUSERCOUNTALL = (1 << 14), /*!< Sets if the number of users should be announced to everyone. */
USER_OPT_JITTERBUFFER = (1 << 15), /*!< Places a jitterbuffer on the user. */
USER_OPT_ANNOUNCE_JOIN_LEAVE_REVIEW = (1 << 16), /*!< modifies ANNOUNCE_JOIN_LEAVE - user reviews the recording before continuing */
USER_OPT_SEND_EVENTS = (1 << 17), /*!< Send text message events to users */
USER_OPT_ECHO_EVENTS = (1 << 18), /*!< Send events only to the admin(s) */
USER_OPT_TEXT_MESSAGING = (1 << 19), /*!< Send text messages to the user */
USER_OPT_ANSWER_CHANNEL = (1 << 20), /*!< Sets if the channel should be answered if currently unanswered */
USER_OPT_HEAR_OWN_JOIN_SOUND = (1 << 21), /*!< Set if the caller should hear the join sound */
USER_OPT_ENDMARKEDANY = (1 << 22), /*!< Set if the user should be kicked after any marked user exits */
};
enum bridge_profile_flags {
BRIDGE_OPT_RECORD_CONFERENCE = (1 << 0), /*!< Set if the conference should be recorded */
BRIDGE_OPT_VIDEO_SRC_LAST_MARKED = (1 << 1), /*!< Set if conference should feed video of last marked user to all participants. */
BRIDGE_OPT_VIDEO_SRC_FIRST_MARKED = (1 << 2), /*!< Set if conference should feed video of first marked user to all participants. */
BRIDGE_OPT_VIDEO_SRC_FOLLOW_TALKER = (1 << 3), /*!< Set if conference set the video feed to follow the loudest talker. */
BRIDGE_OPT_RECORD_FILE_APPEND = (1 << 4), /*!< Set if the record file should be appended to between start/stops. */
BRIDGE_OPT_RECORD_FILE_TIMESTAMP = (1 << 5), /*!< Set if the record file should have a timestamp appended */
BRIDGE_OPT_BINAURAL_ACTIVE = (1 << 6), /*!< Set if binaural convolution is activated */
BRIDGE_OPT_VIDEO_SRC_SFU = (1 << 7), /*!< Selective forwarding unit */
BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE = (1 << 8), /*!< The average of all REMB reports is sent to the sender */
BRIDGE_OPT_REMB_BEHAVIOR_LOWEST = (1 << 9), /*!< The lowest estimated maximum bitrate is sent to the sender */
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST = (1 << 10), /*!< The highest estimated maximum bitrate is sent to the sender */
BRIDGE_OPT_ENABLE_EVENTS = (1 << 11), /*!< Enable sending events to participants */
BRIDGE_OPT_REMB_BEHAVIOR_AVERAGE_ALL = (1 << 12), /*!< The average of all REMB reports in the entire bridge is sent to each sender */
BRIDGE_OPT_REMB_BEHAVIOR_LOWEST_ALL = (1 << 13), /*!< The lowest estimated maximum bitrate from all receivers is sent to each sender */
BRIDGE_OPT_REMB_BEHAVIOR_HIGHEST_ALL = (1 << 14), /*!< The highest estimated maximum bitrate from all receivers is sent to each sender */
BRIDGE_OPT_REMB_BEHAVIOR_FORCE = (1 << 15), /*!< Force the REMB estimated bitrate to that specifiec in remb_estimated_bitrate */
};
enum conf_menu_action_id {
MENU_ACTION_TOGGLE_MUTE = 1,
MENU_ACTION_PLAYBACK,
MENU_ACTION_PLAYBACK_AND_CONTINUE,
MENU_ACTION_INCREASE_LISTENING,
MENU_ACTION_DECREASE_LISTENING,
MENU_ACTION_RESET_LISTENING,
MENU_ACTION_RESET_TALKING,
MENU_ACTION_INCREASE_TALKING,
MENU_ACTION_DECREASE_TALKING,
MENU_ACTION_DIALPLAN_EXEC,
MENU_ACTION_ADMIN_TOGGLE_LOCK,
MENU_ACTION_ADMIN_KICK_LAST,
MENU_ACTION_LEAVE,
MENU_ACTION_NOOP,
MENU_ACTION_SET_SINGLE_VIDEO_SRC,
MENU_ACTION_RELEASE_SINGLE_VIDEO_SRC,
MENU_ACTION_PARTICIPANT_COUNT,
MENU_ACTION_ADMIN_TOGGLE_MUTE_PARTICIPANTS,
MENU_ACTION_TOGGLE_BINAURAL,
};
/*! The conference menu action contains both
* the action id that represents the action that
* must take place, along with any data associated
* with that action. */
struct conf_menu_action {
enum conf_menu_action_id id;
union {
char playback_file[PATH_MAX];
struct {
char context[AST_MAX_CONTEXT];
char exten[AST_MAX_EXTENSION];
int priority;
} dialplan_args;
} data;
AST_LIST_ENTRY(conf_menu_action) action;
};
/*! Conference menu entries contain the DTMF sequence
* and the list of actions that are associated with that
* sequence. */
struct conf_menu_entry {
/*! the DTMF sequence that triggers the actions */
char dtmf[MAXIMUM_DTMF_FEATURE_STRING];
/*! The actions associated with this menu entry. */
AST_LIST_HEAD_NOLOCK(, conf_menu_action) actions;
AST_LIST_ENTRY(conf_menu_entry) entry;
};
/*! Conference menu structure. Contains a list
* of DTMF sequences coupled with the actions those
* sequences invoke.*/
struct conf_menu {
char name[MAX_PROFILE_NAME];
AST_LIST_HEAD_NOLOCK(, conf_menu_entry) entries;
};
struct user_profile {
char name[MAX_PROFILE_NAME];
char pin[MAX_PIN];
char moh_class[128];
char announcement[PATH_MAX];
unsigned int flags;
unsigned int announce_user_count_all_after;
/*! Minimum average magnitude threshold to determine talking by the DSP. */
unsigned int talking_threshold;
/*! Time in ms of silence necessary to declare talking stopped by the bridge. */
unsigned int silence_threshold;
/*! The time in ms the user may stay in the confbridge */
unsigned int timeout;
};
enum conf_sounds {
CONF_SOUND_HAS_JOINED,
CONF_SOUND_HAS_LEFT,
CONF_SOUND_KICKED,
CONF_SOUND_MUTED,
CONF_SOUND_UNMUTED,
CONF_SOUND_ONLY_ONE,
CONF_SOUND_THERE_ARE,
CONF_SOUND_OTHER_IN_PARTY,
CONF_SOUND_PLACE_IN_CONF,
CONF_SOUND_WAIT_FOR_LEADER,
CONF_SOUND_LEADER_HAS_LEFT,
CONF_SOUND_GET_PIN,
CONF_SOUND_INVALID_PIN,
CONF_SOUND_ONLY_PERSON,
CONF_SOUND_LOCKED,
CONF_SOUND_LOCKED_NOW,
CONF_SOUND_UNLOCKED_NOW,
CONF_SOUND_ERROR_MENU,
CONF_SOUND_JOIN,
CONF_SOUND_LEAVE,
CONF_SOUND_PARTICIPANTS_MUTED,
CONF_SOUND_PARTICIPANTS_UNMUTED,
CONF_SOUND_BEGIN,
CONF_SOUND_BINAURAL_ON,
CONF_SOUND_BINAURAL_OFF,
};
struct bridge_profile_sounds {
AST_DECLARE_STRING_FIELDS(
AST_STRING_FIELD(hasjoin);
AST_STRING_FIELD(hasleft);
AST_STRING_FIELD(kicked);
AST_STRING_FIELD(muted);
AST_STRING_FIELD(unmuted);
AST_STRING_FIELD(onlyone);
AST_STRING_FIELD(thereare);
AST_STRING_FIELD(otherinparty);
AST_STRING_FIELD(placeintoconf);
AST_STRING_FIELD(waitforleader);
AST_STRING_FIELD(leaderhasleft);
AST_STRING_FIELD(getpin);
AST_STRING_FIELD(invalidpin);
AST_STRING_FIELD(onlyperson);
AST_STRING_FIELD(locked);
AST_STRING_FIELD(lockednow);
AST_STRING_FIELD(unlockednow);
AST_STRING_FIELD(errormenu);
AST_STRING_FIELD(leave);
AST_STRING_FIELD(join);
AST_STRING_FIELD(participantsmuted);
AST_STRING_FIELD(participantsunmuted);
AST_STRING_FIELD(begin);
AST_STRING_FIELD(binauralon);
AST_STRING_FIELD(binauraloff);
);
};
struct bridge_profile {
char name[MAX_PROFILE_NAME];
char language[MAX_LANGUAGE]; /*!< Language used for playback_chan */
char rec_file[PATH_MAX];
char rec_options[128];
char rec_command[128];
unsigned int flags;
unsigned int max_members; /*!< The maximum number of participants allowed in the conference */
unsigned int internal_sample_rate; /*!< The internal sample rate of the bridge. 0 when set to auto adjust mode. */
unsigned int maximum_sample_rate; /*!< The maximum sample rate of the bridge. 0 when set to no maximum. */
unsigned int mix_interval; /*!< The internal mixing interval used by the bridge. When set to 0 the bridgewill use a default interval. */
struct bridge_profile_sounds *sounds;
char regcontext[AST_MAX_CONTEXT];
unsigned int video_update_discard; /*!< Amount of time after sending a video update request that subsequent requests should be discarded */
unsigned int remb_send_interval; /*!< Interval at which a combined REMB frame is sent to video sources */
unsigned int remb_estimated_bitrate; /*!< Bitrate sent when BRIDGE_OPT_REMB_BEHAVIOR_FORCE is set */
};
/*! \brief The structure that represents a conference bridge */
struct confbridge_conference {
char name[MAX_CONF_NAME]; /*!< Name of the conference bridge */
struct confbridge_state *state; /*!< Conference state information */
struct ast_bridge *bridge; /*!< Bridge structure doing the mixing */
struct bridge_profile b_profile; /*!< The Bridge Configuration Profile */
unsigned int activeusers; /*!< Number of active users present */
unsigned int markedusers; /*!< Number of marked users present */
unsigned int waitingusers; /*!< Number of waiting users present */
unsigned int locked:1; /*!< Is this conference bridge locked? */
unsigned int muted:1; /*!< Is this conference bridge muted? */
struct ast_channel *playback_chan; /*!< Channel used for playback into the conference bridge */
struct ast_channel *record_chan; /*!< Channel used for recording the conference */
struct ast_str *record_filename; /*!< Recording filename. */
struct ast_str *orig_rec_file; /*!< Previous b_profile.rec_file. */
AST_LIST_HEAD_NOLOCK(, confbridge_user) active_list; /*!< List of users participating in the conference bridge */
AST_LIST_HEAD_NOLOCK(, confbridge_user) waiting_list; /*!< List of users waiting to join the conference bridge */
struct ast_taskprocessor *playback_queue; /*!< Queue for playing back bridge announcements and managing the announcer channel */
};
extern struct ao2_container *conference_bridges;
struct post_join_action {
int (*func)(struct confbridge_user *user);
AST_LIST_ENTRY(post_join_action) list;
};
/*! \brief The structure that represents a conference bridge user */
struct confbridge_user {
struct confbridge_conference *conference; /*!< Conference bridge they are participating in */
struct bridge_profile b_profile; /*!< The Bridge Configuration Profile */
struct user_profile u_profile; /*!< The User Configuration Profile */
char menu_name[MAX_PROFILE_NAME]; /*!< The name of the DTMF menu assigned to this user */
char name_rec_location[PATH_MAX]; /*!< Location of the User's name recorded file if it exists */
struct ast_channel *chan; /*!< Asterisk channel participating */
struct ast_bridge_features features; /*!< Bridge features structure */
struct ast_bridge_tech_optimizations tech_args; /*!< Bridge technology optimizations for talk detection */
unsigned int suspended_moh; /*!< Count of active suspended MOH actions. */
unsigned int muted:1; /*!< Has the user requested to be muted? */
unsigned int kicked:1; /*!< User has been kicked from the conference */
unsigned int playing_moh:1; /*!< MOH is currently being played to the user */
unsigned int talking:1; /*!< User is currently talking */
AST_LIST_HEAD_NOLOCK(, post_join_action) post_join_list; /*!< List of sounds to play after joining */;
AST_LIST_ENTRY(confbridge_user) list; /*!< Linked list information */
};
/*! \brief load confbridge.conf file */
int conf_load_config(void);
/*! \brief reload confbridge.conf file */
int conf_reload_config(void);
/*! \brief destroy the information loaded from the confbridge.conf file*/
void conf_destroy_config(void);
/*!
* \brief find a user profile given a user profile's name and store
* that profile in result structure.
*
* \param chan channel the user profile is requested for
* \param user_profile_name name of the profile requested (optional)
* \param result data contained by the user profile will be copied to this struct pointer
*
* \details If user_profile_name is not provided, this function will
* check for the presence of a user profile set by the CONFBRIDGE
* function on a channel datastore. If that doesn't exist, the
* default_user profile is used.
*
* \retval user profile on success
* \retval NULL on failure
*/
const struct user_profile *conf_find_user_profile(struct ast_channel *chan, const char *user_profile_name, struct user_profile *result);
/*!
* \brief Find a bridge profile given a bridge profile's name and store
* that profile in result structure.
*
* \param chan channel the bridge profile is requested for
* \param bridge_profile_name name of the profile requested (optional)
* \param result data contained by the bridge profile will be copied to this struct pointer
*
* \details If bridge_profile_name is not provided, this function will
* check for the presence of a bridge profile set by the CONFBRIDGE
* function on a channel datastore. If that doesn't exist, the
* default_bridge profile is used.
*
* \retval bridge profile on success
* \retval NULL on failure
*/
const struct bridge_profile *conf_find_bridge_profile(struct ast_channel *chan, const char *bridge_profile_name, struct bridge_profile *result);
/*!
* \brief find a menu profile given a menu profile's name and apply
* the menu in DTMF hooks.
*
* \param chan channel the menu profile is requested for
* \param user user profile the menu is being applied to
* \param menu_profile_name name of the profile requested (optional)
*
* \details If menu_profile_name is not provided, this function will
* check for the presence of a menu profile set by the CONFBRIDGE
* function on a channel datastore. If that doesn't exist, the
* default_menu profile is used.
*
* \retval 0 on success
* \retval -1 on failure
*/
int conf_set_menu_to_user(struct ast_channel *chan, struct confbridge_user *user, const char *menu_profile_name);
/*!
* \brief Destroy a bridge profile found by 'conf_find_bridge_profile'
*/
void conf_bridge_profile_destroy(struct bridge_profile *b_profile);
/*!
* \brief copies a bridge profile
* \note conf_bridge_profile_destroy must be called on the dst structure
*/
void conf_bridge_profile_copy(struct bridge_profile *dst, struct bridge_profile *src);
/*!
* \brief Finds a menu_entry in a menu structure matched by DTMF sequence.
*
* \note the menu entry found must be destroyed using conf_menu_entry_destroy()
*
* \retval 1 success, entry is found and stored in result
* \retval 0 failure, no entry found for given DTMF sequence
*/
int conf_find_menu_entry_by_sequence(const char *dtmf_sequence, struct conf_menu *menu, struct conf_menu_entry *result);
/*!
* \brief Destroys and frees all the actions stored in a menu_entry structure
*/
void conf_menu_entry_destroy(struct conf_menu_entry *menu_entry);
/*!
* \brief Once a DTMF sequence matches a sequence in the user's DTMF menu, this function will get
* called to perform the menu action.
*
* \param bridge_channel Bridged channel this is involving
* \param user the conference user to perform the action on.
* \param menu_entry the menu entry that invoked this callback to occur.
* \param menu an AO2 referenced pointer to the entire menu structure the menu_entry
* derived from.
*
* \note The menu_entry is a deep copy of the entry found in the menu structure. This allows
* for the menu_entry to be accessed without requiring the menu lock. If the menu must
* be accessed, the menu lock must be held. Reference counting of the menu structure is
* handled outside of the scope of this function.
*
* \retval 0 success
* \retval -1 failure
*/
int conf_handle_dtmf(
struct ast_bridge_channel *bridge_channel,
struct confbridge_user *user,
struct conf_menu_entry *menu_entry,
struct conf_menu *menu);
/*! \brief Looks to see if sound file is stored in bridge profile sounds, if not
* default sound is provided.*/
const char *conf_get_sound(enum conf_sounds sound, struct bridge_profile_sounds *custom_sounds);
int func_confbridge_helper(struct ast_channel *chan, const char *cmd, char *data, const char *value);
/*!
* \brief Play sound file into conference bridge
*
* \param conference The conference bridge to play sound file into
* \param filename Sound file to play
*
* \retval 0 success
* \retval -1 failure
*/
int play_sound_file(struct confbridge_conference *conference, const char *filename);
/*!
* \brief Play sound file into conference bridge asynchronously
*
* If the initiator parameter is non-NULL, then the playback will wait for
* that initiator channel to get back in the bridge before playing the sound
* file. This way, the initiator has no danger of hearing a "clipped" file.
*
* \param conference The conference bridge to play sound file into
* \param filename Sound file to play
* \param initiator Channel that initiated playback.
*
* \retval 0 success
* \retval -1 failure
*/
int async_play_sound_file(struct confbridge_conference *conference, const char *filename,
struct ast_channel *initiator);
/*!
* \brief Indicate the initiator of an async sound file is ready for it to play.
*
* When playing an async sound file, the initiator is typically either out of the bridge
* or not in a position to hear the queued announcement. This function lets the announcement
* thread know that the initiator is now ready for the sound to play.
*
* If an async announcement was queued and no initiator channel was provided, then this is
* a no-op
*
* \param chan The channel that initiated the async announcement
*/
void async_play_sound_ready(struct ast_channel *chan);
/*! \brief Callback to be called when the conference has become empty
* \param conference The conference bridge
*/
void conf_ended(struct confbridge_conference *conference);
/*!
* \brief Update the actual mute status of the user and set it on the bridge.
*
* \param user User to update the mute status.
*/
void conf_update_user_mute(struct confbridge_user *user);
/*!
* \brief Stop MOH for the conference user.
*
* \param user Conference user to stop MOH on.
*/
void conf_moh_stop(struct confbridge_user *user);
/*!
* \brief Start MOH for the conference user.
*
* \param user Conference user to start MOH on.
*/
void conf_moh_start(struct confbridge_user *user);
/*! \brief Attempt to mute/play MOH to the only user in the conference if they require it
* \param conference A conference bridge containing a single user
*/
void conf_mute_only_active(struct confbridge_conference *conference);
/*! \brief Callback to execute any time we transition from zero to one active users
* \param conference The conference bridge with a single active user joined
*/
void conf_handle_first_join(struct confbridge_conference *conference);
/*! \brief Handle actions every time a waitmarked user joins w/o a marked user present
* \param user The waitmarked user
* \retval 0 success
* \retval -1 failure
*/
int conf_handle_inactive_waitmarked(struct confbridge_user *user);
/*! \brief Handle actions whenever an user joins an empty conference
*
* \param user The user
*/
int conf_handle_only_person(struct confbridge_user *user);
/*! \brief Handle when a conference moves to having more than one active participant
* \param conference The conference bridge with more than one active participant
*/
void conf_handle_second_active(struct confbridge_conference *conference);
/*! \brief Add a conference bridge user as an unmarked active user of the conference
* \param conference The conference bridge to add the user to
* \param user The conference bridge user to add to the conference
*/
void conf_add_user_active(struct confbridge_conference *conference, struct confbridge_user *user);
/*! \brief Add a conference bridge user as a marked active user of the conference
* \param conference The conference bridge to add the user to
* \param user The conference bridge user to add to the conference
*/
void conf_add_user_marked(struct confbridge_conference *conference, struct confbridge_user *user);
/*! \brief Add a conference bridge user as an waiting user of the conference
* \param conference The conference bridge to add the user to
* \param user The conference bridge user to add to the conference
*/
void conf_add_user_waiting(struct confbridge_conference *conference, struct confbridge_user *user);
/*! \brief Remove a conference bridge user from the unmarked active conference users in the conference
* \param conference The conference bridge to remove the user from
* \param user The conference bridge user to remove from the conference
*/
void conf_remove_user_active(struct confbridge_conference *conference, struct confbridge_user *user);
/*! \brief Remove a conference bridge user from the marked active conference users in the conference
* \param conference The conference bridge to remove the user from
* \param user The conference bridge user to remove from the conference
*/
void conf_remove_user_marked(struct confbridge_conference *conference, struct confbridge_user *user);
/*! \brief Remove a conference bridge user from the waiting conference users in the conference
* \param conference The conference bridge to remove the user from
* \param user The conference bridge user to remove from the conference
*/
void conf_remove_user_waiting(struct confbridge_conference *conference, struct confbridge_user *user);
/*! \brief Queue a function to run with the given conference bridge user as an argument once the state transition is complete
* \param user The conference bridge user to pass to the function
* \param func The function to queue
* \retval 0 success
* \retval non-zero failure
*/
int conf_add_post_join_action(struct confbridge_user *user, int (*func)(struct confbridge_user *user));
/*!
* \since 12.0
* \brief get the confbridge start stasis message type
*
* \retval stasis message type for confbridge start messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_start_type(void);
/*!
* \since 12.0
* \brief get the confbridge end stasis message type
*
* \retval stasis message type for confbridge end messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_end_type(void);
/*!
* \since 12.0
* \brief get the confbridge join stasis message type
*
* \retval stasis message type for confbridge join messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_join_type(void);
/*!
* \since 12.0
* \brief get the confbridge leave stasis message type
*
* \retval stasis message type for confbridge leave messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_leave_type(void);
/*!
* \since 12.0
* \brief get the confbridge start_record stasis message type
*
* \retval stasis message type for confbridge start_record messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_start_record_type(void);
/*!
* \since 12.0
* \brief get the confbridge stop_record stasis message type
*
* \retval stasis message type for confbridge stop_record messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_stop_record_type(void);
/*!
* \since 12.0
* \brief get the confbridge mute stasis message type
*
* \retval stasis message type for confbridge mute messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_mute_type(void);
/*!
* \since 12.0
* \brief get the confbridge unmute stasis message type
*
* \retval stasis message type for confbridge unmute messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_unmute_type(void);
/*!
* \since 12.0
* \brief get the confbridge talking stasis message type
*
* \retval stasis message type for confbridge talking messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_talking_type(void);
/*!
* \since 15.5
* \brief get the confbridge welcome stasis message type
*
* \retval stasis message type for confbridge welcome messages if it's available
* \retval NULL if it isn't
*/
struct stasis_message_type *confbridge_welcome_type(void);
/*!
* \since 15.5
* \brief Get the string representation of a confbridge stasis message type
*
* \param event_type The confbridge event type such as 'confbridge_welcome_type()'
*
* \retval The string representation of the message type
* \retval "unknown" if not found
*/
const char *confbridge_event_type_to_string(struct stasis_message_type *event_type);
/*!
* \since 12.0
* \brief register stasis message routers to handle manager events for confbridge messages
*
* \retval 0 success
* \retval non-zero failure
*/
int manager_confbridge_init(void);
/*!
* \since 12.0
* \brief unregister stasis message routers to handle manager events for confbridge messages
*/
void manager_confbridge_shutdown(void);
/*!
* \brief Get ConfBridge record channel technology struct.
* \since 12.0.0
*
* \return ConfBridge record channel technology.
*/
struct ast_channel_tech *conf_record_get_tech(void);
/*!
* \brief Get ConfBridge announce channel technology struct.
* \since 12.0.0
*
* \return ConfBridge announce channel technology.
*/
struct ast_channel_tech *conf_announce_get_tech(void);
/*!
* \brief Push the announcer channel into the conference.
* \since 12.0.0
*
* \param ast Either channel in the announcer channel pair.
*
* \retval 0 on success.
* \retval -1 on error.
*/
int conf_announce_channel_push(struct ast_channel *ast);
/*!
* \brief Find a confbridge by name.
* \since 13.22.0
* \since 15.5.0
*
* \param conference_name The name to search for
*
* \return ConfBridge (which must be unreffed) or NULL.
*/
struct confbridge_conference *conf_find_bridge(const char *conference_name);
/*!
* \brief Send events to bridge participants.
* \since 15.7
* \since 16.1
*
* \param conference The conference bridge
* \param chan The channel triggering the action
* \param msg The stasis message describing the event
*/
void conf_send_event_to_participants(struct confbridge_conference *conference,
struct ast_channel *chan, struct stasis_message *msg);
/*!
* \brief Create join/leave events for attended transfers
* \since 13.28
* \since 16.5
*
* \param msg The attended transfer stasis message
*
*/
void confbridge_handle_atxfer(struct ast_attended_transfer_message *msg);
#endif