mirror of https://github.com/irungentoo/toxcore
152 lines
4.0 KiB
C
152 lines
4.0 KiB
C
/** msi.h
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*
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* Copyright (C) 2013-2015 Tox project All Rights Reserved.
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*
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* This file is part of Tox.
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*
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* Tox is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Tox is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Tox. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef MSI_H
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#define MSI_H
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#include <inttypes.h>
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#include <pthread.h>
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#include "audio.h"
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#include "video.h"
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#include "../toxcore/Messenger.h"
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/**
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* Error codes.
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*/
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typedef enum {
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msi_ENone,
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msi_EInvalidMessage,
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msi_EInvalidParam,
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msi_EInvalidState,
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msi_EStrayMessage,
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msi_ESystem,
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msi_EHandle,
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msi_EUndisclosed, /* NOTE: must be last enum otherwise parsing will not work */
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} MSIError;
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/**
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* Supported capabilities
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*/
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typedef enum {
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msi_CapSAudio = 4, /* sending audio */
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msi_CapSVideo = 8, /* sending video */
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msi_CapRAudio = 16, /* receiving audio */
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msi_CapRVideo = 32, /* receiving video */
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} MSICapabilities;
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/**
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* Call state identifiers.
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*/
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typedef enum {
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msi_CallInactive, /* Default */
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msi_CallActive,
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msi_CallRequesting, /* when sending call invite */
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msi_CallRequested, /* when getting call invite */
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} MSICallState;
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/**
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* Callbacks ids that handle the states
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*/
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typedef enum {
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msi_OnInvite, /* Incoming call */
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msi_OnStart, /* Call (RTP transmission) started */
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msi_OnEnd, /* Call that was active ended */
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msi_OnError, /* On protocol error */
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msi_OnPeerTimeout, /* Peer timed out; stop the call */
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msi_OnCapabilities, /* Peer requested capabilities change */
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} MSICallbackID;
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/**
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* The call struct. Please do not modify outside msi.c
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*/
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typedef struct MSICall_s {
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struct MSISession_s *session; /* Session pointer */
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MSICallState state;
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uint8_t peer_capabilities; /* Peer capabilities */
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uint8_t self_capabilities; /* Self capabilities */
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uint16_t peer_vfpsz; /* Video frame piece size */
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uint32_t friend_number; /* Index of this call in MSISession */
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MSIError error; /* Last error */
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void *av_call; /* Pointer to av call handler */
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struct MSICall_s *next;
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struct MSICall_s *prev;
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} MSICall;
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/**
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* Expected return on success is 0, if any other number is
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* returned the call is considered errored and will be handled
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* as such which means it will be terminated without any notice.
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*/
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typedef int msi_action_cb (void *av, MSICall *call);
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/**
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* Control session struct. Please do not modify outside msi.c
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*/
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typedef struct MSISession_s {
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/* Call handlers */
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MSICall **calls;
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uint32_t calls_tail;
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uint32_t calls_head;
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void *av;
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Messenger *messenger;
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pthread_mutex_t mutex[1];
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msi_action_cb *callbacks[7];
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} MSISession;
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/**
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* Start the control session.
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*/
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MSISession *msi_new(Messenger *m);
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/**
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* Terminate control session. NOTE: all calls will be freed
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*/
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int msi_kill(MSISession *session);
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/**
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* Callback setter.
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*/
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void msi_register_callback(MSISession *session, msi_action_cb *callback, MSICallbackID id);
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/**
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* Send invite request to friend_number.
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*/
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int msi_invite(MSISession *session, MSICall **call, uint32_t friend_number, uint8_t capabilities);
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/**
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* Hangup call. NOTE: 'call' will be freed
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*/
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int msi_hangup(MSICall *call);
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/**
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* Answer call request.
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*/
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int msi_answer(MSICall *call, uint8_t capabilities);
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/**
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* Change capabilities of the call.
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*/
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int msi_change_capabilities(MSICall *call, uint8_t capabilities);
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#endif /* MSI_H */
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