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toxic/src/audio_call.c

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/* audio_call.c
*
*
* Copyright (C) 2014 Toxic All Rights Reserved.
*
* This file is part of Toxic.
*
* Toxic 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 3 of the License, or
* (at your option) any later version.
*
* Toxic 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 Toxic. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "audio_call.h"
#include "audio_device.h"
#include "chat_commands.h"
#include "chat.h"
#include "friendlist.h"
#include "global_commands.h"
#include "line_info.h"
#include "misc_tools.h"
#include "notify.h"
#include "settings.h"
#include "toxic.h"
#include "windows.h"
#ifdef AUDIO
#ifdef VIDEO
#include "video_call.h"
#endif /* VIDEO */
#include <assert.h>
#include <curses.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#ifdef __APPLE__
#include <OpenAL/al.h>
#include <OpenAL/alc.h>
#else
#include <AL/al.h>
#include <AL/alc.h>
/* compatibility with older versions of OpenAL */
#ifndef ALC_ALL_DEVICES_SPECIFIER
#include <AL/alext.h>
#endif /* ALC_ALL_DEVICES_SPECIFIER */
#endif /* __APPLE__ */
extern FriendsList Friends;
extern ToxWindow *windows[MAX_WINDOWS_NUM];
struct CallControl CallControl;
extern struct user_settings *user_settings;
extern struct Winthread Winthread;
void on_call(ToxAV *av, uint32_t friend_number, bool audio_enabled, bool video_enabled,
void *user_data);
void on_call_state(ToxAV *av, uint32_t friend_number, uint32_t state, void *user_data);
void on_audio_receive_frame(ToxAV *av, uint32_t friend_number, int16_t const *pcm, size_t sample_count,
uint8_t channels, uint32_t sampling_rate, void *user_data);
void callback_recv_invite(Tox *m, uint32_t friend_number);
void callback_recv_ringing(uint32_t friend_number);
void callback_recv_starting(uint32_t friend_number);
void callback_recv_ending(uint32_t friend_number);
void callback_call_started(uint32_t friend_number);
void callback_call_canceled(uint32_t friend_number);
void callback_call_rejected(uint32_t friend_number);
void callback_call_ended(uint32_t friend_number);
void write_device_callback(uint32_t friend_number, const int16_t *PCM, uint16_t sample_count, uint8_t channels,
uint32_t sample_rate);
void audio_bit_rate_callback(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, void *user_data);
static void print_err(ToxWindow *self, const char *error_str)
{
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "%s", error_str);
}
ToxAV *init_audio(ToxWindow *self, Tox *tox)
{
Toxav_Err_New error;
CallControl.audio_errors = ae_None;
CallControl.prompt = self;
CallControl.av = toxav_new(tox, &error);
CallControl.audio_enabled = true;
CallControl.default_audio_bit_rate = 64;
CallControl.audio_sample_rate = 48000;
CallControl.audio_frame_duration = 20;
CallControl.audio_channels = user_settings->chat_audio_channels;
CallControl.video_enabled = false;
CallControl.default_video_bit_rate = 0;
CallControl.video_frame_duration = 0;
if (!CallControl.av) {
CallControl.audio_errors |= ae_StartingCoreAudio;
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Failed to init ToxAV");
return NULL;
}
if (init_devices() == de_InternalError) {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Failed to init devices");
toxav_kill(CallControl.av);
return CallControl.av = NULL;
}
toxav_callback_call(CallControl.av, on_call, tox);
toxav_callback_call_state(CallControl.av, on_call_state, NULL);
toxav_callback_audio_receive_frame(CallControl.av, on_audio_receive_frame, NULL);
toxav_callback_audio_bit_rate(CallControl.av, audio_bit_rate_callback, NULL);
return CallControl.av;
}
void read_device_callback(const int16_t *captured, uint32_t size, void *data)
{
UNUSED_VAR(size);
Toxav_Err_Send_Frame error;
uint32_t friend_number = *((uint32_t *)data); /* TODO: Or pass an array of call_idx's */
int64_t sample_count = ((int64_t) CallControl.audio_sample_rate) * \
((int64_t) CallControl.audio_frame_duration) / 1000;
if (sample_count <= 0) {
return;
}
toxav_audio_send_frame(CallControl.av, friend_number,
captured, sample_count,
CallControl.audio_channels,
CallControl.audio_sample_rate, &error);
}
void write_device_callback(uint32_t friend_number, const int16_t *PCM, uint16_t sample_count, uint8_t channels,
uint32_t sample_rate)
{
if (CallControl.calls[friend_number].status == cs_Active) {
write_out(CallControl.calls[friend_number].out_idx, PCM, sample_count, channels, sample_rate);
}
}
bool init_call(Call *call)
{
if (call->status != cs_None) {
return false;
}
*call = (struct Call) {
0
};
call->status = cs_Pending;
call->in_idx = -1;
call->out_idx = -1;
call->audio_bit_rate = CallControl.default_audio_bit_rate;
#ifdef VIDEO
call->vin_idx = -1;
call->vout_idx = -1;
call->video_width = CallControl.default_video_width;
call->video_height = CallControl.default_video_height;
call->video_bit_rate = CallControl.default_video_bit_rate;
#endif /* VIDEO */
return true;
}
static bool cancel_call(Call *call)
{
if (call->status != cs_Pending) {
return false;
}
call->status = cs_None;
return true;
}
static int start_transmission(ToxWindow *self, Call *call)
{
if (!self || !CallControl.av) {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Failed to prepare audio transmission");
return -1;
}
DeviceError error = open_input_device(&call->in_idx, read_device_callback, &self->num, false,
CallControl.audio_sample_rate, CallControl.audio_frame_duration, CallControl.audio_channels);
if (error != de_None) {
if (error == de_FailedStart) {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Failed to start audio input device");
}
if (error == de_InternalError) {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Internal error with opening audio input device");
}
}
if (open_output_device(&call->out_idx,
CallControl.audio_sample_rate, CallControl.audio_frame_duration, CallControl.audio_channels) != de_None) {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Failed to open audio output device!");
}
return 0;
}
static void start_call(ToxWindow *self, Call *call)
{
if (call->status != cs_Pending) {
return;
}
if (start_transmission(self, call) != 0) {
return;
}
call->status = cs_Active;
#ifdef VIDEO
if (call->state & TOXAV_FRIEND_CALL_STATE_SENDING_V) {
callback_recv_video_starting(self->num);
}
if (call->video_bit_rate) {
start_video_transmission(self, CallControl.av, call);
}
#endif
}
static int stop_transmission(Call *call, uint32_t friend_number)
{
if (call->status != cs_Active) {
return -1;
}
call->status = cs_None;
if (call->in_idx != -1) {
close_device(input, call->in_idx);
}
if (call->out_idx != -1) {
close_device(output, call->out_idx);
}
Toxav_Err_Call_Control error = TOXAV_ERR_CALL_CONTROL_OK;
if (call->state > TOXAV_FRIEND_CALL_STATE_FINISHED) {
toxav_call_control(CallControl.av, friend_number, TOXAV_CALL_CONTROL_CANCEL, &error);
}
if (error != TOXAV_ERR_CALL_CONTROL_OK) {
return -1;
}
return 0;
}
void terminate_audio(void)
{
for (int i = 0; i < CallControl.max_calls; ++i) {
stop_transmission(&CallControl.calls[i], i);
}
if (CallControl.av) {
toxav_kill(CallControl.av);
}
terminate_devices();
}
/*
* End of transmission
*/
/*
* Callbacks
*/
void on_call(ToxAV *av, uint32_t friend_number, bool audio_enabled, bool video_enabled, void *user_data)
{
UNUSED_VAR(av);
Tox *m = (Tox *) user_data;
Call *call = &CallControl.calls[friend_number];
init_call(call);
call->state = TOXAV_FRIEND_CALL_STATE_ACCEPTING_A | TOXAV_FRIEND_CALL_STATE_ACCEPTING_V;
if (audio_enabled) {
call->state |= TOXAV_FRIEND_CALL_STATE_SENDING_A;
}
if (video_enabled) {
call->state |= TOXAV_FRIEND_CALL_STATE_SENDING_V;
}
callback_recv_invite(m, friend_number);
}
void on_call_state(ToxAV *av, uint32_t friend_number, uint32_t state, void *user_data)
{
UNUSED_VAR(av);
UNUSED_VAR(user_data);
Call *call = &CallControl.calls[friend_number];
if (call->status == cs_None) {
return;
}
call->state = state;
switch (state) {
case TOXAV_FRIEND_CALL_STATE_ERROR:
case TOXAV_FRIEND_CALL_STATE_FINISHED:
if (state == TOXAV_FRIEND_CALL_STATE_ERROR) {
line_info_add(CallControl.prompt, false, NULL, NULL, SYS_MSG, 0, 0, "ToxAV callstate error!");
}
if (call->status == cs_Pending) {
cancel_call(call);
callback_call_rejected(friend_number);
} else {
#ifdef VIDEO
callback_recv_video_end(friend_number);
callback_video_end(friend_number);
#endif /* VIDEO */
stop_transmission(call, friend_number);
callback_call_ended(friend_number);
}
break;
default:
if (call->status == cs_Pending) {
/* Start answered call */
callback_call_started(friend_number);
}
#ifdef VIDEO
/* Handle receiving client video call states */
if (state & TOXAV_FRIEND_CALL_STATE_SENDING_V) {
callback_recv_video_starting(friend_number);
} else {
callback_recv_video_end(friend_number);
}
#endif /* VIDEO */
break;
}
}
void on_audio_receive_frame(ToxAV *av, uint32_t friend_number,
int16_t const *pcm, size_t sample_count,
uint8_t channels, uint32_t sampling_rate, void *user_data)
{
UNUSED_VAR(av);
UNUSED_VAR(user_data);
write_device_callback(friend_number, pcm, sample_count, channels, sampling_rate);
}
void audio_bit_rate_callback(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, void *user_data)
{
UNUSED_VAR(user_data);
Call *call = &CallControl.calls[friend_number];
call->audio_bit_rate = audio_bit_rate;
toxav_audio_set_bit_rate(av, friend_number, audio_bit_rate, NULL);
}
void callback_recv_invite(Tox *m, uint32_t friend_number)
{
if (friend_number >= Friends.max_idx) {
return;
}
if (Friends.list[friend_number].chatwin == -1) {
if (get_num_active_windows() >= MAX_WINDOWS_NUM) {
return;
}
Friends.list[friend_number].chatwin = add_window(m, new_chat(m, Friends.list[friend_number].num));
}
const Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onInvite != NULL && windows[i]->num == friend_number) {
windows[i]->onInvite(windows[i], CallControl.av, friend_number, call->state);
}
}
}
void callback_recv_ringing(uint32_t friend_number)
{
const Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onRinging != NULL && windows[i]->num == friend_number) {
windows[i]->onRinging(windows[i], CallControl.av, friend_number, call->state);
}
}
}
void callback_recv_starting(uint32_t friend_number)
{
Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onStarting != NULL && windows[i]->num == friend_number) {
windows[i]->onStarting(windows[i], CallControl.av, friend_number, call->state);
start_call(windows[i], call);
}
}
}
void callback_recv_ending(uint32_t friend_number)
{
const Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onEnding != NULL && windows[i]->num == friend_number) {
windows[i]->onEnding(windows[i], CallControl.av, friend_number, call->state);
}
}
}
void callback_call_started(uint32_t friend_number)
{
Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onStart != NULL && windows[i]->num == friend_number) {
windows[i]->onStart(windows[i], CallControl.av, friend_number, call->state);
start_call(windows[i], call);
}
}
}
void callback_call_canceled(uint32_t friend_number)
{
const Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onCancel != NULL && windows[i]->num == friend_number) {
windows[i]->onCancel(windows[i], CallControl.av, friend_number, call->state);
}
}
}
void callback_call_rejected(uint32_t friend_number)
{
const Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onReject != NULL && windows[i]->num == friend_number) {
windows[i]->onReject(windows[i], CallControl.av, friend_number, call->state);
}
}
}
void callback_call_ended(uint32_t friend_number)
{
const Call *call = &CallControl.calls[friend_number];
for (uint8_t i = 0; i < MAX_WINDOWS_NUM; ++i) {
if (windows[i] != NULL && windows[i]->onEnd != NULL && windows[i]->num == friend_number) {
windows[i]->onEnd(windows[i], CallControl.av, friend_number, call->state);
}
}
}
/*
* End of Callbacks
*/
/*
* Commands from chat_commands.h
*/
void cmd_call(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
UNUSED_VAR(argv);
if (argc != 0) {
print_err(self, "Unknown arguments.");
return;
}
if (!CallControl.av) {
print_err(self, "ToxAV not supported!");
return;
}
if (!self->stb->connection) {
print_err(self, "Friend is offline.");
return;
}
Call *call = &CallControl.calls[self->num];
if (call->status != cs_None) {
print_err(self, "Already calling.");
return;
}
init_call(call);
place_call(self);
}
void cmd_answer(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
UNUSED_VAR(argv);
Toxav_Err_Answer error;
if (argc != 0) {
print_err(self, "Unknown arguments.");
return;
}
if (!CallControl.av) {
print_err(self, "Audio not supported!");
return;
}
Call *call = &CallControl.calls[self->num];
if (call->status != cs_Pending) {
print_err(self, "No incoming call!");
return;
}
toxav_answer(CallControl.av, self->num, call->audio_bit_rate, call->video_bit_rate, &error);
if (error != TOXAV_ERR_ANSWER_OK) {
if (error == TOXAV_ERR_ANSWER_FRIEND_NOT_CALLING) {
print_err(self, "No incoming call!");
} else if (error == TOXAV_ERR_ANSWER_CODEC_INITIALIZATION) {
print_err(self, "Failed to initialize codecs!");
} else if (error == TOXAV_ERR_ANSWER_FRIEND_NOT_FOUND) {
print_err(self, "Friend not found!");
} else if (error == TOXAV_ERR_ANSWER_INVALID_BIT_RATE) {
print_err(self, "Invalid bit rate!");
} else {
print_err(self, "Internal error!");
}
return;
}
/* Callback will print status... */
callback_recv_starting(self->num);
}
void cmd_reject(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
UNUSED_VAR(argv);
if (argc != 0) {
print_err(self, "Unknown arguments.");
return;
}
if (!CallControl.av) {
print_err(self, "Audio not supported!");
return;
}
Call *call = &CallControl.calls[self->num];
if (call->status != cs_Pending) {
print_err(self, "No incoming call!");
return;
}
/* Manually send a cancel call control because call hasn't started */
toxav_call_control(CallControl.av, self->num, TOXAV_CALL_CONTROL_CANCEL, NULL);
cancel_call(call);
/* Callback will print status... */
callback_call_rejected(self->num);
}
void cmd_hangup(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
UNUSED_VAR(argv);
if (!CallControl.av) {
print_err(self, "Audio not supported!");
return;
}
if (argc != 0) {
print_err(self, "Unknown arguments.");
return;
}
Call *call = &CallControl.calls[self->num];
if (call->status == cs_None) {
print_err(self, "Not in a call.");
return;
}
stop_current_call(self);
}
void cmd_list_devices(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
if (argc != 1) {
if (argc < 1) {
print_err(self, "Type must be specified!");
} else {
print_err(self, "Only one argument allowed!");
}
return;
}
DeviceType type;
if (strcasecmp(argv[1], "in") == 0) { /* Input devices */
type = input;
}
else if (strcasecmp(argv[1], "out") == 0) { /* Output devices */
type = output;
}
else {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Invalid type: %s", argv[1]);
return;
}
// Refresh device list.
get_al_device_names();
print_al_devices(self, type);
}
/* This changes primary device only */
void cmd_change_device(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
if (argc != 2) {
if (argc < 1) {
print_err(self, "Type must be specified!");
} else if (argc < 2) {
print_err(self, "Must have id!");
} else {
print_err(self, "Only two arguments allowed!");
}
return;
}
DeviceType type;
if (strcmp(argv[1], "in") == 0) { /* Input devices */
type = input;
}
else if (strcmp(argv[1], "out") == 0) { /* Output devices */
type = output;
}
else {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Invalid type: %s", argv[1]);
return;
}
char *end;
long int selection = strtol(argv[2], &end, 10);
if (*end) {
print_err(self, "Invalid input");
return;
}
if (set_al_device(type, selection) == de_InvalidSelection) {
print_err(self, "Invalid selection!");
return;
}
}
void cmd_mute(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
if (argc != 1) {
print_err(self, "Specify type: \"/mute in\" or \"/mute out\".");
return;
}
DeviceType type;
if (strcasecmp(argv[1], "in") == 0) { /* Input devices */
type = input;
}
else if (strcasecmp(argv[1], "out") == 0) { /* Output devices */
type = output;
}
else {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0, "Invalid type: %s", argv[1]);
return;
}
/* If call is active, use this_call values */
Call *this_call = &CallControl.calls[self->num];
if (this_call->status == cs_Active) {
if (type == input) {
device_mute(type, this_call->in_idx);
self->chatwin->infobox.in_is_muted = device_is_muted(type, this_call->in_idx);
} else {
device_mute(type, this_call->out_idx);
self->chatwin->infobox.out_is_muted = device_is_muted(type, this_call->out_idx);
}
}
return;
}
void cmd_sense(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
if (argc != 1) {
if (argc < 1) {
print_err(self, "Must have value!");
} else {
print_err(self, "Only two arguments allowed!");
}
return;
}
char *end;
float value = strtof(argv[1], &end);
if (*end) {
print_err(self, "Invalid input");
return;
}
const Call *call = &CallControl.calls[self->num];
/* Call must be active */
if (call->status == cs_Active) {
device_set_VAD_threshold(call->in_idx, value);
self->chatwin->infobox.vad_lvl = value;
}
return;
}
void cmd_bitrate(WINDOW *window, ToxWindow *self, Tox *m, int argc, char (*argv)[MAX_STR_SIZE])
{
UNUSED_VAR(window);
UNUSED_VAR(m);
Call *call = &CallControl.calls[self->num];
if (call->status != cs_Active) {
print_err(self, "Must be in a call");
return;
}
if (argc == 0) {
line_info_add(self, false, NULL, NULL, SYS_MSG, 0, 0,
"Current audio encoding bitrate: %u", call->audio_bit_rate);
return;
}
if (argc > 1) {
print_err(self, "Too many arguments.");
return;
}
char *end;
const long int bit_rate = strtol(argv[1], &end, 10);
if (*end || bit_rate < 0 || bit_rate > UINT32_MAX) {
print_err(self, "Invalid input");
return;
}
Toxav_Err_Bit_Rate_Set error;
toxav_audio_set_bit_rate(CallControl.av, self->num, bit_rate, &error);
if (error != TOXAV_ERR_BIT_RATE_SET_OK) {
if (error == TOXAV_ERR_BIT_RATE_SET_SYNC) {
print_err(self, "Synchronization error occured");
} else if (error == TOXAV_ERR_BIT_RATE_SET_INVALID_BIT_RATE) {
print_err(self, "Invalid audio bit rate value (valid is 6-510)");
} else if (error == TOXAV_ERR_BIT_RATE_SET_FRIEND_NOT_FOUND) {
print_err(self, "Friend not found");
} else if (error == TOXAV_ERR_BIT_RATE_SET_FRIEND_NOT_IN_CALL) {
print_err(self, "Friend is not in the call");
} else {
print_err(self, "Unknown error");
}
return;
}
call->audio_bit_rate = bit_rate;
return;
}
void place_call(ToxWindow *self)
{
Call *call = &CallControl.calls[self->num];
if (call->status != cs_Pending) {
return;
}
Toxav_Err_Call error;
toxav_call(CallControl.av, self->num, call->audio_bit_rate, call->video_bit_rate, &error);
if (error != TOXAV_ERR_CALL_OK) {
if (error == TOXAV_ERR_CALL_FRIEND_ALREADY_IN_CALL) {
print_err(self, "Already in a call!");
} else if (error == TOXAV_ERR_CALL_MALLOC) {
print_err(self, "Memory allocation issue");
} else if (error == TOXAV_ERR_CALL_FRIEND_NOT_FOUND) {
print_err(self, "Friend number invalid");
} else if (error == TOXAV_ERR_CALL_FRIEND_NOT_CONNECTED) {
print_err(self, "Friend is valid but not currently connected");
} else {
print_err(self, "Internal error!");
}
cancel_call(call);
return;
}
callback_recv_ringing(self->num);
}
void stop_current_call(ToxWindow *self)
{
Call *call = &CallControl.calls[self->num];
if (call->status == cs_Pending) {
toxav_call_control(CallControl.av, self->num, TOXAV_CALL_CONTROL_CANCEL, NULL);
cancel_call(call);
callback_call_canceled(self->num);
} else {
#ifdef VIDEO
callback_recv_video_end(self->num);
callback_video_end(self->num);
#endif /* VIDEO */
stop_transmission(call, self->num);
callback_call_ended(self->num);
}
}
/**
* Reallocates the Calls list according to n.
*/
static void realloc_calls(uint32_t n)
{
if (n == 0) {
free(CallControl.calls);
CallControl.calls = NULL;
return;
}
Call *temp = realloc(CallControl.calls, n * sizeof(Call));
if (temp == NULL) {
exit_toxic_err("failed in realloc_calls", FATALERR_MEMORY);
}
CallControl.calls = temp;
}
/**
* Inits the call structure for a given friend. Called when a friend is added to the friends list.
* Index must be equivalent to the friend's friendlist index.
*/
void init_friend_AV(uint32_t index)
{
if (index == CallControl.max_calls) {
realloc_calls(CallControl.max_calls + 1);
CallControl.calls[CallControl.max_calls] = (Call) {
0
};
++CallControl.max_calls;
}
}
/**
* Deletes a call structure from the Calls list. Called when a friend is deleted from the friends list.
* Index must be equivalent to the size of the Calls list.
*/
void del_friend_AV(uint32_t index)
{
realloc_calls(index);
CallControl.max_calls = index;
}
#endif /* AUDIO */
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