StarMirror/toxcore
1
0
Fork 0
mirror of https://github.com/irungentoo/toxcore.git synced 2024-03-22 13:30:51 +08:00
Code Issues Projects Releases Wiki Activity

Control part of new api already kind of works

Browse Source
This commit is contained in:
mannol 2015-02-14 23:37:52 +01:00
parent 39680f31d0
commit aad857527c
10 changed files with 2728 additions and 2339 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
toxav/Makefile.inc
View File

@ -35,4 +35,21 @@ libtoxav_la_LIBADD = libtoxcore.la \
$(PTHREAD_LIBS) \
$(AV_LIBS)
noinst_PROGRAMS += av_test
av_test_SOURCES = ../toxav/av_test.c
av_test_CFLAGS = $(LIBSODIUM_CFLAGS) \
$(NACL_CFLAGS)
av_test_LDADD = $(LIBSODIUM_LDFLAGS) \
$(NACL_LDFLAGS) \
libtoxav.la \
libtoxcore.la \
$(LIBSODIUM_LIBS) \
$(NACL_OBJECTS) \
$(NACL_LIBS)
endif

339
toxav/av_test.c Normal file
View File

@ -0,0 +1,339 @@
#include "toxav.h"
#include "../toxcore/tox.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#if defined(_WIN32) || defined(__WIN32__) || defined (WIN32)
#define c_sleep(x) Sleep(1*x)
#else
#include <unistd.h>
#define c_sleep(x) usleep(1000*x)
#endif
typedef struct {
bool incoming;
bool ringing;
bool ended;
bool errored;
bool sending;
bool paused;
} CallControl;
/**
* Callbacks
*/
void t_toxav_call_cb(ToxAV *av, uint32_t friend_number, bool audio_enabled, bool video_enabled, void *user_data)
{
printf("Handling CALL callback\n");
((CallControl*)user_data)->incoming = true;
}
void t_toxav_call_state_cb(ToxAV *av, uint32_t friend_number, TOXAV_CALL_STATE state, void *user_data)
{
printf("Handling CALL STATE callback: ");
if (((CallControl*)user_data)->ringing)
((CallControl*)user_data)->ringing = false;
if (((CallControl*)user_data)->paused)
((CallControl*)user_data)->paused = false;
switch (state)
{
case TOXAV_CALL_STATE_RINGING: {
printf("Ringing");
((CallControl*)user_data)->ringing = true;
} break;
case TOXAV_CALL_STATE_NOT_SENDING: {
printf("Not sending");
((CallControl*)user_data)->sending = false;
} break;
case TOXAV_CALL_STATE_SENDING_A: {
printf("Sending Audio");
((CallControl*)user_data)->sending = true;
} break;
case TOXAV_CALL_STATE_SENDING_V: {
printf("Sending Video");
((CallControl*)user_data)->sending = true;
} break;
case TOXAV_CALL_STATE_SENDING_AV: {
printf("Sending Both");
((CallControl*)user_data)->sending = true;
} break;
case TOXAV_CALL_STATE_PAUSED: {
printf("Paused");
((CallControl*)user_data)->paused = true;
((CallControl*)user_data)->sending = false;
} break;
case TOXAV_CALL_STATE_END: {
printf("Ended");
((CallControl*)user_data)->ended = true;
((CallControl*)user_data)->sending = false;
} break;
case TOXAV_CALL_STATE_ERROR: {
printf("Error");
((CallControl*)user_data)->errored = true;
((CallControl*)user_data)->sending = false;
} break;
}
printf("\n");
}
void t_toxav_receive_video_frame_cb(ToxAV *av, uint32_t friend_number,
uint16_t width, uint16_t height,
uint8_t const *planes[], int32_t const stride[],
void *user_data)
{
printf("Handling VIDEO FRAME callback\n");
}
void t_toxav_receive_audio_frame_cb(ToxAV *av, uint32_t friend_number,
int16_t const *pcm,
size_t sample_count,
uint8_t channels,
uint32_t sampling_rate,
void *user_data)
{
printf("Handling AUDIO FRAME callback\n");
}
void t_accept_friend_request_cb(Tox *m, const uint8_t *public_key, const uint8_t *data, uint16_t length, void *userdata)
{
if (length == 7 && memcmp("gentoo", data, 7) == 0) {
tox_add_friend_norequest(m, public_key);
}
}
/**
*/
void prepare(Tox* Bsn, Tox* Alice, Tox* Bob)
{
long long unsigned int cur_time = time(NULL);
uint32_t to_compare = 974536;
uint8_t address[TOX_FRIEND_ADDRESS_SIZE];
tox_callback_friend_request(Alice, t_accept_friend_request_cb, &to_compare);
tox_get_address(Alice, address);
assert(tox_add_friend(Bob, address, (uint8_t *)"gentoo", 7) >= 0);
uint8_t off = 1;
while (1) {
tox_do(Bsn);
tox_do(Alice);
tox_do(Bob);
if (tox_isconnected(Bsn) && tox_isconnected(Alice) && tox_isconnected(Bob) && off) {
printf("Toxes are online, took %llu seconds\n", time(NULL) - cur_time);
off = 0;
}
if (tox_get_friend_connection_status(Alice, 0) == 1 && tox_get_friend_connection_status(Bob, 0) == 1)
break;
c_sleep(20);
}
printf("All set after %llu seconds!\n", time(NULL) - cur_time);
}
void prepareAV(ToxAV* AliceAV, void* AliceUD, ToxAV* BobAV, void* BobUD)
{
/* Alice */
toxav_callback_call(AliceAV, t_toxav_call_cb, AliceUD);
toxav_callback_call_state(AliceAV, t_toxav_call_state_cb, AliceUD);
toxav_callback_receive_video_frame(AliceAV, t_toxav_receive_video_frame_cb, AliceUD);
toxav_callback_receive_audio_frame(AliceAV, t_toxav_receive_audio_frame_cb, AliceUD);
/* Bob */
toxav_callback_call(BobAV, t_toxav_call_cb, BobUD);
toxav_callback_call_state(BobAV, t_toxav_call_state_cb, BobUD);
toxav_callback_receive_video_frame(BobAV, t_toxav_receive_video_frame_cb, BobUD);
toxav_callback_receive_audio_frame(BobAV, t_toxav_receive_audio_frame_cb, BobUD);
}
void iterate(Tox* Bsn, ToxAV* AliceAV, ToxAV* BobAV)
{
tox_do(Bsn);
tox_do(toxav_get_tox(AliceAV));
tox_do(toxav_get_tox(BobAV));
toxav_iteration(AliceAV);
toxav_iteration(BobAV);
c_sleep(20);
}
int main (int argc, char** argv)
{
Tox *Bsn = tox_new(0);
Tox *Alice = tox_new(0);
Tox *Bob = tox_new(0);
assert(Bsn && Alice && Bob);
prepare(Bsn, Alice, Bob);
ToxAV *AliceAV, *BobAV;
CallControl AliceCC, BobCC;
{
TOXAV_ERR_NEW rc;
AliceAV = toxav_new(Alice, &rc);
assert(rc == TOXAV_ERR_NEW_OK);
BobAV = toxav_new(Bob, &rc);
assert(rc == TOXAV_ERR_NEW_OK);
prepareAV(AliceAV, &AliceCC, BobAV, &BobCC);
printf("Created 2 instances of ToxAV\n");
}
#define REGULAR_CALL_FLOW(A_BR, V_BR) \
{ \
memset(&AliceCC, 0, sizeof(CallControl)); \
memset(&BobCC, 0, sizeof(CallControl)); \
\
TOXAV_ERR_CALL rc; \
toxav_call(AliceAV, 0, A_BR, V_BR, &rc); \
\
if (rc != TOXAV_ERR_CALL_OK) { \
printf("toxav_call failed: %d\n", rc); \
exit(1); \
} \
\
\
long long unsigned int start_time = time(NULL); \
\
\
while (!AliceCC.ended || !BobCC.ended) { \
\
if (BobCC.incoming) { \
TOXAV_ERR_ANSWER rc; \
toxav_answer(BobAV, 0, 48, 4000, &rc); \
\
if (rc != TOXAV_ERR_ANSWER_OK) { \
printf("toxav_answer failed: %d\n", rc); \
exit(1); \
} \
BobCC.incoming = false; \
} \
else if (AliceCC.sending && BobCC.sending) { \
/* TODO rtp */ \
\
if (time(NULL) - start_time == 5) { \
\
TOXAV_ERR_CALL_CONTROL rc; \
toxav_call_control(AliceAV, 0, TOXAV_CALL_CONTROL_CANCEL, &rc); \
\
if (rc != TOXAV_ERR_CALL_CONTROL_OK) { \
printf("toxav_call_control failed: %d\n", rc); \
exit(1); \
} \
} \
} \
\
iterate(Bsn, AliceAV, BobAV); \
} \
printf("Success!\n");\
}
printf("\nTrying regular call (Audio and Video)...\n");
// REGULAR_CALL_FLOW(48, 4000);
printf("\nTrying regular call (Audio only)...\n");
// REGULAR_CALL_FLOW(48, 0);
printf("\nTrying regular call (Video only)...\n");
// REGULAR_CALL_FLOW(0, 4000);
#undef REGULAR_CALL_FLOW
{ /* Alice calls; Bob rejects */
printf("\nTrying reject flow...\n");
memset(&AliceCC, 0, sizeof(CallControl));
memset(&BobCC, 0, sizeof(CallControl));
{
TOXAV_ERR_CALL rc;
toxav_call(AliceAV, 0, 48, 0, &rc);
if (rc != TOXAV_ERR_CALL_OK) {
printf("toxav_call failed: %d\n", rc);
exit(1);
}
}
while (!BobCC.incoming)
iterate(Bsn, AliceAV, BobAV);
/* Reject */
{
TOXAV_ERR_CALL_CONTROL rc;
toxav_call_control(BobAV, 0, TOXAV_CALL_CONTROL_CANCEL, &rc);
if (rc != TOXAV_ERR_CALL_CONTROL_OK) {
printf("toxav_call_control failed: %d\n", rc);
exit(1);
}
}
while (!AliceCC.ended || !BobCC.ended)
iterate(Bsn, AliceAV, BobAV);
printf("Success!\n");
}
{ /* Alice calls; Alice cancels while ringing */
printf("\nTrying cancel (while ringing) flow...\n");
memset(&AliceCC, 0, sizeof(CallControl));
memset(&BobCC, 0, sizeof(CallControl));
{
TOXAV_ERR_CALL rc;
toxav_call(AliceAV, 0, 48, 0, &rc);
if (rc != TOXAV_ERR_CALL_OK) {
printf("toxav_call failed: %d\n", rc);
exit(1);
}
}
while (!BobCC.incoming)
iterate(Bsn, AliceAV, BobAV);
/* Cancel */
{
TOXAV_ERR_CALL_CONTROL rc;
toxav_call_control(AliceAV, 0, TOXAV_CALL_CONTROL_CANCEL, &rc);
if (rc != TOXAV_ERR_CALL_CONTROL_OK) {
printf("toxav_call_control failed: %d\n", rc);
exit(1);
}
}
while (!AliceCC.ended || !BobCC.ended)
iterate(Bsn, AliceAV, BobAV);
printf("Success!\n");
}
printf("\nTest successful!\n");
return 0;
}

84
toxav/codec.c
View File

@ -40,7 +40,6 @@
#include "rtp.h"
#include "codec.h"
#define DEFAULT_JBUF 6
/* Good quality encode. */
@ -125,7 +124,7 @@ static void buffer_free(PayloadBuffer *b)
}
/* JITTER BUFFER WORK */
typedef struct {
typedef struct JitterBuffer {
RTPMessage **queue;
uint32_t size;
uint32_t capacity;
@ -260,48 +259,51 @@ void cs_do(CSSession *cs)
int success = 0;
pthread_mutex_lock(cs->queue_mutex);
RTPMessage *msg;
uint16_t fsize = 5760; /* Max frame size for 48 kHz */
int16_t tmp[fsize * 2];
while ((msg = jbuf_read(cs->j_buf, &success)) || success == 2) {
pthread_mutex_unlock(cs->queue_mutex);
if (cs->audio_decoder) { /* If receiving enabled */
RTPMessage *msg;
if (success == 2) {
rc = opus_decode(cs->audio_decoder, 0, 0, tmp, fsize, 1);
} else {
/* Get values from packet and decode.
* It also checks for validity of an opus packet
*/
rc = convert_bw_to_sampling_rate(opus_packet_get_bandwidth(msg->data));
if (rc != -1) {
cs->last_packet_sampling_rate = rc;
cs->last_pack_channels = opus_packet_get_nb_channels(msg->data);
uint16_t fsize = 5760; /* Max frame size for 48 kHz */
int16_t tmp[fsize * 2];
while ((msg = jbuf_read(cs->j_buf, &success)) || success == 2) {
pthread_mutex_unlock(cs->queue_mutex);
cs->last_packet_frame_duration =
( opus_packet_get_samples_per_frame(msg->data, cs->last_packet_sampling_rate) * 1000 )
/ cs->last_packet_sampling_rate;
if (success == 2) {
rc = opus_decode(cs->audio_decoder, 0, 0, tmp, fsize, 1);
} else {
LOGGER_WARNING("Failed to load packet values!");
/* Get values from packet and decode.
* It also checks for validity of an opus packet
*/
rc = convert_bw_to_sampling_rate(opus_packet_get_bandwidth(msg->data));
if (rc != -1) {
cs->last_packet_sampling_rate = rc;
cs->last_pack_channels = opus_packet_get_nb_channels(msg->data);
cs->last_packet_frame_duration =
( opus_packet_get_samples_per_frame(msg->data, cs->last_packet_sampling_rate) * 1000 )
/ cs->last_packet_sampling_rate;
} else {
LOGGER_WARNING("Failed to load packet values!");
rtp_free_msg(NULL, msg);
continue;
}
rc = opus_decode(cs->audio_decoder, msg->data, msg->length, tmp, fsize, 0);
rtp_free_msg(NULL, msg);
continue;
}
rc = opus_decode(cs->audio_decoder, msg->data, msg->length, tmp, fsize, 0);
rtp_free_msg(NULL, msg);
if (rc < 0) {
LOGGER_WARNING("Decoding error: %s", opus_strerror(rc));
} else if (cs->acb.first) {
/* Play */
cs->acb.first(cs->agent, cs->friend_number, tmp, rc,
cs->last_pack_channels, cs->last_packet_sampling_rate, cs->acb.second);
}
pthread_mutex_lock(cs->queue_mutex);
}
if (rc < 0) {
LOGGER_WARNING("Decoding error: %s", opus_strerror(rc));
} else if (((ToxAV*)cs->agent)->acb.first) {
/* Play */
((ToxAV*)cs->agent)->acb.first(cs->agent, cs->call_idx, tmp, rc,
((ToxAV*)cs->agent)->acb.second);
}
pthread_mutex_lock(cs->queue_mutex);
}
if (cs->vbuf_raw && !buffer_empty(cs->vbuf_raw)) {
@ -322,11 +324,11 @@ void cs_do(CSSession *cs)
/* Play decoded images */
for (; dest; dest = vpx_codec_get_frame(cs->v_decoder, &iter)) {
if (((ToxAV*)cs->agent)->vcb.first)
((ToxAV*)cs->agent)->vcb.first(cs->agent, cs->call_idx, dest,
((ToxAV*)cs->agent)->vcb.second);
vpx_img_free(dest);
if (cs->vcb.first)
cs->vcb.first(cs->agent, cs->call_idx, dest->d_w, dest->d_h,
(const uint8_t**)dest->planes, dest->stride, cs->vcb.second);
vpx_img_free(dest);
}
}

6
toxav/codec.h
View File

@ -117,7 +117,7 @@ typedef struct _CSSession {
int32_t last_pack_channels;
int32_t last_packet_sampling_rate;
int32_t last_packet_frame_duration;
struct _JitterBuffer *j_buf;
struct JitterBuffer *j_buf;
/* Voice activity detection */
@ -132,6 +132,10 @@ typedef struct _CSSession {
*/
void *agent; /* Pointer to ToxAV TODO make this pointer to ToxAV*/
int32_t call_idx;
int32_t friend_number;
PAIR(toxav_receive_audio_frame_cb *, void *) acb; /* Audio frame receive callback */
PAIR(toxav_receive_video_frame_cb *, void *) vcb; /* Video frame receive callback */
pthread_mutex_t queue_mutex[1];
} CSSession;

1406
toxav/toxav.c
View File

File diff suppressed because it is too large Load Diff

796
toxav/toxav.h
View File

@ -1,329 +1,483 @@
/** toxav.h
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*
#pragma once
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
/** \page av Public audio/video API for Tox clients.
*
* Unlike the Core API, this API is fully thread-safe. The library will ensure
* the proper synchronisation of parallel calls.
*/
/**
* The type of the Tox Audio/Video subsystem object.
*/
typedef struct toxAV ToxAV;
#ifndef TOX_DEFINED
#define TOX_DEFINED
/**
* The type of a Tox instance. Repeated here so this file does not have a direct
* dependency on the Core interface.
*/
#ifndef __TOXAV
#define __TOXAV
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _ToxAv ToxAv;
/* vpx_image_t */
#include <vpx/vpx_image.h>
typedef void ( *ToxAVCallback ) ( void *agent, int32_t call_idx, void *arg );
typedef void ( *ToxAvAudioCallback ) (void *agent, int32_t call_idx, const int16_t *PCM, uint16_t size, void *data);
typedef void ( *ToxAvVideoCallback ) (void *agent, int32_t call_idx, const vpx_image_t *img, void *data);
#ifndef __TOX_DEFINED__
#define __TOX_DEFINED__
typedef struct Tox Tox;
#endif
#define RTP_PAYLOAD_SIZE 65535
/**
* Callbacks ids that handle the call states.
*/
typedef enum {
av_OnInvite, /* Incoming call */
av_OnRinging, /* When peer is ready to accept/reject the call */
av_OnStart, /* Call (RTP transmission) started */
av_OnCancel, /* The side that initiated call canceled invite */
av_OnReject, /* The side that was invited rejected the call */
av_OnEnd, /* Call that was active ended */
av_OnRequestTimeout, /* When the requested action didn't get response in specified time */
av_OnPeerTimeout, /* Peer timed out; stop the call */
av_OnPeerCSChange, /* Peer changing Csettings. Prepare for changed AV */
av_OnSelfCSChange /* Csettings change confirmation. Once triggered peer is ready to recv changed AV */
} ToxAvCallbackID;
/**
* Call type identifier.
*/
typedef enum {
av_TypeAudio = 192,
av_TypeVideo
} ToxAvCallType;
typedef enum {
av_CallNonExistent = -1,
av_CallInviting, /* when sending call invite */
av_CallStarting, /* when getting call invite */
av_CallActive,
av_CallHold,
av_CallHungUp
} ToxAvCallState;
/**
* Error indicators. Values under -20 are reserved for toxcore.
*/
typedef enum {
av_ErrorNone = 0,
av_ErrorUnknown = -1, /* Unknown error */
av_ErrorNoCall = -20, /* Trying to perform call action while not in a call */
av_ErrorInvalidState = -21, /* Trying to perform call action while in invalid state*/
av_ErrorAlreadyInCallWithPeer = -22, /* Trying to call peer when already in a call with peer */
av_ErrorReachedCallLimit = -23, /* Cannot handle more calls */
av_ErrorInitializingCodecs = -30, /* Failed creating CSSession */
av_ErrorSettingVideoResolution = -31, /* Error setting resolution */
av_ErrorSettingVideoBitrate = -32, /* Error setting bitrate */
av_ErrorSplittingVideoPayload = -33, /* Error splitting video payload */
av_ErrorEncodingVideo = -34, /* vpx_codec_encode failed */
av_ErrorEncodingAudio = -35, /* opus_encode failed */
av_ErrorSendingPayload = -40, /* Sending lossy packet failed */
av_ErrorCreatingRtpSessions = -41, /* One of the rtp sessions failed to initialize */
av_ErrorNoRtpSession = -50, /* Trying to perform rtp action on invalid session */
av_ErrorInvalidCodecState = -51, /* Codec state not initialized */
av_ErrorPacketTooLarge = -52, /* Split packet exceeds it's limit */
} ToxAvError;
/**
* Locally supported capabilities.
*/
typedef enum {
av_AudioEncoding = 1 << 0,
av_AudioDecoding = 1 << 1,
av_VideoEncoding = 1 << 2,
av_VideoDecoding = 1 << 3
} ToxAvCapabilities;
/**
* Encoding settings.
*/
typedef struct _ToxAvCSettings {
ToxAvCallType call_type;
uint32_t video_bitrate; /* In kbits/s */
uint16_t max_video_width; /* In px */
uint16_t max_video_height; /* In px */
uint32_t audio_bitrate; /* In bits/s */
uint16_t audio_frame_duration; /* In ms */
uint32_t audio_sample_rate; /* In Hz */
uint32_t audio_channels;
} ToxAvCSettings;
extern const ToxAvCSettings av_DefaultSettings;
/**
* Start new A/V session. There can only be one session at the time.
*/
ToxAv *toxav_new(Tox *messenger, int32_t max_calls);
/**
* Remove A/V session.
*/
void toxav_kill(ToxAv *av);
/**
* Returns the interval in milliseconds when the next toxav_do() should be called.
* If no call is active at the moment returns 200.
*/
uint32_t toxav_do_interval(ToxAv *av);
/**
* Main loop for the session. Best called right after tox_do();
*/
void toxav_do(ToxAv *av);
/**
* Register callback for call state.
*/
void toxav_register_callstate_callback (ToxAv *av, ToxAVCallback cb, ToxAvCallbackID id, void *userdata);
/**
* Register callback for audio data.
*/
void toxav_register_audio_callback (ToxAv *av, ToxAvAudioCallback cb, void *userdata);
/**
* Register callback for video data.
*/
void toxav_register_video_callback (ToxAv *av, ToxAvVideoCallback cb, void *userdata);
/**
* Call user. Use its friend_id.
*/
int toxav_call(ToxAv *av,
int32_t *call_index,
int friend_id,
const ToxAvCSettings *csettings,
int ringing_seconds);
/**
* Hangup active call.
*/
int toxav_hangup(ToxAv *av, int32_t call_index);
/**
* Answer incoming call. Pass the csettings that you will use.
*/
int toxav_answer(ToxAv *av, int32_t call_index, const ToxAvCSettings *csettings );
/**
* Reject incoming call.
*/
int toxav_reject(ToxAv *av, int32_t call_index, const char *reason);
/**
* Cancel outgoing request.
*/
int toxav_cancel(ToxAv *av, int32_t call_index, int peer_id, const char *reason);
/**
* Notify peer that we are changing codec settings.
*/
int toxav_change_settings(ToxAv *av, int32_t call_index, const ToxAvCSettings *csettings);
/**
* Terminate transmission. Note that transmission will be
* terminated without informing remote peer. Usually called when we can't inform peer.
*/
int toxav_stop_call(ToxAv *av, int32_t call_index);
/**
* Allocates transmission data. Must be call before calling toxav_prepare_* and toxav_send_*.
* Also, it must be called when call is started
*/
int toxav_prepare_transmission(ToxAv *av, int32_t call_index, int support_video);
/**
* Clears transmission data. Call this at the end of the transmission.
*/
int toxav_kill_transmission(ToxAv *av, int32_t call_index);
/**
* Encode video frame.
*/
int toxav_prepare_video_frame ( ToxAv *av,
int32_t call_index,
uint8_t *dest,
int dest_max,
vpx_image_t *input);
/**
* Send encoded video packet.
*/
int toxav_send_video ( ToxAv *av, int32_t call_index, const uint8_t *frame, uint32_t frame_size);
/**
* Encode audio frame.
*/
int toxav_prepare_audio_frame ( ToxAv *av,
int32_t call_index,
uint8_t *dest,
int dest_max,
const int16_t *frame,
int frame_size);
/**
* Send encoded audio frame.
*/
int toxav_send_audio ( ToxAv *av, int32_t call_index, const uint8_t *frame, unsigned int size);
/**
* Get codec settings from the peer. These were exchanged during call initialization
* or when peer send us new csettings.
*/
int toxav_get_peer_csettings ( ToxAv *av, int32_t call_index, int peer, ToxAvCSettings *dest );
/**
* Get friend id of peer participating in conversation.
*/
int toxav_get_peer_id ( ToxAv *av, int32_t call_index, int peer );
/**
* Get current call state.
*/
ToxAvCallState toxav_get_call_state ( ToxAv *av, int32_t call_index );
/**
* Is certain capability supported. Used to determine if encoding/decoding is ready.
*/
int toxav_capability_supported ( ToxAv *av, int32_t call_index, ToxAvCapabilities capability );
/**
* Returns tox reference.
*/
Tox *toxav_get_tox (ToxAv *av);
/**
* Returns number of active calls or -1 on error.
*/
int toxav_get_active_count (ToxAv *av);
/* Create a new toxav group.
/*******************************************************************************
*
* :: Creation and destruction
*
* return group number on success.
* return -1 on failure.
*
* Audio data callback format:
* audio_callback(Tox *tox, int groupnumber, int peernumber, const int16_t *pcm, unsigned int samples, uint8_t channels, unsigned int sample_rate, void *userdata)
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
******************************************************************************/
typedef enum TOXAV_ERR_NEW {
TOXAV_ERR_NEW_OK,
TOXAV_ERR_NEW_NULL,
/**
* Memory allocation failure while trying to allocate structures required for
* the A/V session.
*/
TOXAV_ERR_NEW_MALLOC,
/**
* Attempted to create a second session for the same Tox instance.
*/
TOXAV_ERR_NEW_MULTIPLE
} TOXAV_ERR_NEW;
/**
* Start new A/V session. There can only be only one session per Tox instance.
*/
int toxav_add_av_groupchat(Tox *tox, void (*audio_callback)(Tox *, int, int, const int16_t *, unsigned int, uint8_t,
unsigned int, void *), void *userdata);
/* Join a AV group (you need to have been invited first.)
ToxAV *toxav_new(Tox *tox, TOXAV_ERR_NEW *error);
/**
* Releases all resources associated with the A/V session.
*
* returns group number on success
* returns -1 on failure.
*
* Audio data callback format (same as the one for toxav_add_av_groupchat()):
* audio_callback(Tox *tox, int groupnumber, int peernumber, const int16_t *pcm, unsigned int samples, uint8_t channels, unsigned int sample_rate, void *userdata)
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
* If any calls were ongoing, these will be forcibly terminated without
* notifying peers. After calling this function, no other functions may be
* called and the av pointer becomes invalid.
*/
int toxav_join_av_groupchat(Tox *tox, int32_t friendnumber, const uint8_t *data, uint16_t length,
void (*audio_callback)(Tox *, int, int, const int16_t *, unsigned int, uint8_t, unsigned int, void *), void *userdata);
/* Send audio to the group chat.
*
* return 0 on success.
* return -1 on failure.
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*
* Valid number of samples are ((sample rate) * (audio length (Valid ones are: 2.5, 5, 10, 20, 40 or 60 ms)) / 1000)
* Valid number of channels are 1 or 2.
* Valid sample rates are 8000, 12000, 16000, 24000, or 48000.
*
* Recommended values are: samples = 960, channels = 1, sample_rate = 48000
void toxav_kill(ToxAV *av);
/**
* Returns the Tox instance the A/V object was created for.
*/
int toxav_group_send_audio(Tox *tox, int groupnumber, const int16_t *pcm, unsigned int samples, uint8_t channels,
unsigned int sample_rate);
#ifdef __cplusplus
}
#endif
#endif /* __TOXAV */
Tox *toxav_get_tox(ToxAV *av);
/*******************************************************************************
*
* :: A/V event loop
*
******************************************************************************/
/**
* Returns the interval in milliseconds when the next toxav_iteration should be
* called. If no call is active at the moment, this function returns 200.
*/
uint32_t toxav_iteration_interval(ToxAV const *av);
/**
* Main loop for the session. This function needs to be called in intervals of
* toxav_iteration_interval() milliseconds. It is best called in the same loop
* as tox_iteration.
*/
void toxav_iteration(ToxAV *av);
/*******************************************************************************
*
* :: Call setup
*
******************************************************************************/
typedef enum TOXAV_ERR_CALL {
TOXAV_ERR_CALL_OK,
/**
* A resource allocation error occurred while trying to create the structures
* required for the call.
*/
TOXAV_ERR_CALL_MALLOC,
/**
* The friend number did not designate a valid friend.
*/
TOXAV_ERR_CALL_FRIEND_NOT_FOUND,
/**
* The friend was valid, but not currently connected.
*/
TOXAV_ERR_CALL_FRIEND_NOT_CONNECTED,
/**
* Attempted to call a friend while already in an audio or video call with
* them.
*/
TOXAV_ERR_CALL_FRIEND_ALREADY_IN_CALL,
/**
* Audio or video bit rate is invalid.
*/
TOXAV_ERR_CALL_INVALID_BIT_RATE
} TOXAV_ERR_CALL;
/**
* Call a friend. This will start ringing the friend.
*
* It is the client's responsibility to stop ringing after a certain timeout,
* if such behaviour is desired. If the client does not stop ringing, the A/V
* library will not stop until the friend is disconnected.
*
* @param friend_number The friend number of the friend that should be called.
* @param audio_bit_rate Audio bit rate in Kb/sec. Set this to 0 to disable
* audio sending.
* @param video_bit_rate Video bit rate in Kb/sec. Set this to 0 to disable
* video sending.
*/
bool toxav_call(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_CALL *error);
/**
* The function type for the `call` callback.
*/
typedef void toxav_call_cb(ToxAV *av, uint32_t friend_number, bool audio_enabled, bool video_enabled, void *user_data);
/**
* Set the callback for the `call` event. Pass NULL to unset.
*
* This event is triggered when a call is received from a friend.
*/
void toxav_callback_call(ToxAV *av, toxav_call_cb *function, void *user_data);
typedef enum TOXAV_ERR_ANSWER {
TOXAV_ERR_ANSWER_OK,
/**
* A resource allocation error occurred while trying to create the structures
* required for the call.
*/
TOXAV_ERR_ANSWER_MALLOC,
/**
* The friend number did not designate a valid friend.
*/
TOXAV_ERR_ANSWER_FRIEND_NOT_FOUND,
/**
* The friend was valid, but they are not currently trying to initiate a call.
* This is also returned if this client is already in a call with the friend.
*/
TOXAV_ERR_ANSWER_FRIEND_NOT_CALLING,
/**
* Audio or video bit rate is invalid.
*/
TOXAV_ERR_ANSWER_INVALID_BIT_RATE
} TOXAV_ERR_ANSWER;
/**
* Accept an incoming call.
*
* If an allocation error occurs while answering a call, both participants will
* receive TOXAV_CALL_STATE_ERROR and the call will end.
*
* @param friend_number The friend number of the friend that is calling.
* @param audio_bit_rate Audio bit rate in Kb/sec. Set this to 0 to disable
* audio sending.
* @param video_bit_rate Video bit rate in Kb/sec. Set this to 0 to disable
* video sending.
*/
bool toxav_answer(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_ANSWER *error);
/*******************************************************************************
*
* :: Call state graph
*
******************************************************************************/
typedef enum TOXAV_CALL_STATE {
/**
* The friend's client is aware of the call. This happens after calling
* toxav_call and the initial call request has been received.
*/
TOXAV_CALL_STATE_RINGING,
/**
* Not sending anything. Either the friend requested that this client stops
* sending anything, or the client turned off both audio and video by setting
* the respective bit rates to 0.
*
* If both sides are in this state, the call is effectively on hold, but not
* in the PAUSED state.
*/
TOXAV_CALL_STATE_NOT_SENDING,
/**
* Sending audio only. Either the friend requested that this client stops
* sending video, or the client turned off video by setting the video bit rate
* to 0.
*/
TOXAV_CALL_STATE_SENDING_A,
/**
* Sending video only. Either the friend requested that this client stops
* sending audio (muted), or the client turned off audio by setting the audio
* bit rate to 0.
*/
TOXAV_CALL_STATE_SENDING_V,
/**
* Sending both audio and video.
*/
TOXAV_CALL_STATE_SENDING_AV,
/**
* The call is on hold. Both sides stop sending and receiving.
*/
TOXAV_CALL_STATE_PAUSED,
/**
* The call has finished. This is the final state after which no more state
* transitions can occur for the call.
*/
TOXAV_CALL_STATE_END,
/**
* Sent by the AV core if an error occurred on the remote end.
*/
TOXAV_CALL_STATE_ERROR
} TOXAV_CALL_STATE;
/**
* The function type for the `call_state` callback.
*
* @param friend_number The friend number for which the call state changed.
* @param state The new call state.
*/
typedef void toxav_call_state_cb(ToxAV *av, uint32_t friend_number, TOXAV_CALL_STATE state, void *user_data);
/**
* Set the callback for the `call_state` event. Pass NULL to unset.
*
* This event is triggered when a call state transition occurs.
*/
void toxav_callback_call_state(ToxAV *av, toxav_call_state_cb *function, void *user_data);
/*******************************************************************************
*
* :: Call control
*
******************************************************************************/
typedef enum TOXAV_CALL_CONTROL {
/**
* Resume a previously paused call. Only valid if the pause was caused by this
* client. Not valid before the call is accepted.
*/
TOXAV_CALL_CONTROL_RESUME,
/**
* Put a call on hold. Not valid before the call is accepted.
*/
TOXAV_CALL_CONTROL_PAUSE,
/**
* Reject a call if it was not answered, yet. Cancel a call after it was
* answered.
*/
TOXAV_CALL_CONTROL_CANCEL,
/**
* Request that the friend stops sending audio. Regardless of the friend's
* compliance, this will cause the `receive_audio_frame` event to stop being
* triggered on receiving an audio frame from the friend.
*/
TOXAV_CALL_CONTROL_MUTE_AUDIO,
/**
* Request that the friend stops sending video. Regardless of the friend's
* compliance, this will cause the `receive_video_frame` event to stop being
* triggered on receiving an video frame from the friend.
*/
TOXAV_CALL_CONTROL_MUTE_VIDEO
} TOXAV_CALL_CONTROL;
typedef enum TOXAV_ERR_CALL_CONTROL {
TOXAV_ERR_CALL_CONTROL_OK,
/**
* The friend_number passed did not designate a valid friend.
*/
TOXAV_ERR_CALL_CONTROL_FRIEND_NOT_FOUND,
/**
* This client is currently not in a call with the friend. Before the call is
* answered, only CANCEL is a valid control.
*/
TOXAV_ERR_CALL_CONTROL_FRIEND_NOT_IN_CALL,
/**
* Attempted to resume a call that was not paused.
*/
TOXAV_ERR_CALL_CONTROL_NOT_PAUSED,
/**
* Attempted to resume a call that was paused by the other party. Also set if
* the client attempted to send a system-only control.
*/
TOXAV_ERR_CALL_CONTROL_DENIED,
/**
* The call was already paused on this client. It is valid to pause if the
* other party paused the call. The call will resume after both parties sent
* the RESUME control.
*/
TOXAV_ERR_CALL_CONTROL_ALREADY_PAUSED
} TOXAV_ERR_CALL_CONTROL;
/**
* Sends a call control command to a friend.
*
* @param friend_number The friend number of the friend this client is in a call
* with.
* @param control The control command to send.
*
* @return true on success.
*/
bool toxav_call_control(ToxAV *av, uint32_t friend_number, TOXAV_CALL_CONTROL control, TOXAV_ERR_CALL_CONTROL *error);
/*******************************************************************************
*
* :: Controlling bit rates
*
******************************************************************************/
typedef enum TOXAV_ERR_BIT_RATE {
TOXAV_ERR_BIT_RATE_OK,
/**
* The bit rate passed was not one of the supported values.
*/
TOXAV_ERR_BIT_RATE_INVALID
} TOXAV_ERR_BIT_RATE;
/**
* Set the audio bit rate to be used in subsequent audio frames.
*
* @param friend_number The friend number of the friend for which to set the
* audio bit rate.
* @param audio_bit_rate The new audio bit rate in Kb/sec. Set to 0 to disable
* audio sending.
*
* @see toxav_call for the valid bit rates.
*/
bool toxav_set_audio_bit_rate(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, TOXAV_ERR_BIT_RATE *error);
/**
* Set the video bit rate to be used in subsequent video frames.
*
* @param friend_number The friend number of the friend for which to set the
* video bit rate.
* @param video_bit_rate The new video bit rate in Kb/sec. Set to 0 to disable
* video sending.
*
* @see toxav_call for the valid bit rates.
*/
bool toxav_set_video_bit_rate(ToxAV *av, uint32_t friend_number, uint32_t video_bit_rate, TOXAV_ERR_BIT_RATE *error);
/*******************************************************************************
*
* :: A/V sending
*
******************************************************************************/
/**
* Common error codes for the send_*_frame functions.
*/
typedef enum TOXAV_ERR_SEND_FRAME {
TOXAV_ERR_SEND_FRAME_OK,
/**
* In case of video, one of Y, U, or V was NULL. In case of audio, the samples
* data pointer was NULL.
*/
TOXAV_ERR_SEND_FRAME_NULL,
/**
* The friend_number passed did not designate a valid friend.
*/
TOXAV_ERR_SEND_FRAME_FRIEND_NOT_FOUND,
/**
* This client is currently not in a call with the friend.
*/
TOXAV_ERR_SEND_FRAME_FRIEND_NOT_IN_CALL,
/**
* No video frame had been requested through the `request_video_frame` event,
* but the client tried to send one, anyway.
*/
TOXAV_ERR_SEND_FRAME_NOT_REQUESTED,
/**
* One of the frame parameters was invalid. E.g. the resolution may be too
* small or too large, or the audio sampling rate may be unsupported.
*/
TOXAV_ERR_SEND_FRAME_INVALID
} TOXAV_ERR_SEND_FRAME;
/**
* The function type for the `request_video_frame` callback.
*
* @param friend_number The friend number of the friend for which the next video
* frame should be sent.
*/
typedef void toxav_request_video_frame_cb(ToxAV *av, uint32_t friend_number, void *user_data);
/**
* Set the callback for the `request_video_frame` event. Pass NULL to unset.
*/
void toxav_callback_request_video_frame(ToxAV *av, toxav_request_video_frame_cb *function, void *user_data);
/**
* Send a video frame to a friend.
*
* This is called in response to receiving the `request_video_frame` event.
*
* Y - plane should be of size: height * width
* U - plane should be of size: (height/2) * (width/2)
* V - plane should be of size: (height/2) * (width/2)
*
* @param friend_number The friend number of the friend to which to send a video
* frame.
* @param width Width of the frame in pixels.
* @param height Height of the frame in pixels.
* @param y Y (Luminance) plane data.
* @param u U (Chroma) plane data.
* @param v V (Chroma) plane data.
*/
bool toxav_send_video_frame(ToxAV *av, uint32_t friend_number,
uint16_t width, uint16_t height,
uint8_t const *y, uint8_t const *u, uint8_t const *v,
TOXAV_ERR_SEND_FRAME *error);
/**
* The function type for the `request_audio_frame` callback.
*
* @param friend_number The friend number of the friend for which the next audio
* frame should be sent.
*/
typedef void toxav_request_audio_frame_cb(ToxAV *av, uint32_t friend_number, void *user_data);
/**
* Set the callback for the `request_audio_frame` event. Pass NULL to unset.
*/
void toxav_callback_request_audio_frame(ToxAV *av, toxav_request_audio_frame_cb *function, void *user_data);
/**
* Send an audio frame to a friend.
*
* This is called in response to receiving the `request_audio_frame` event.
*
* The expected format of the PCM data is: [s1c1][s1c2][...][s2c1][s2c2][...]...
* Meaning: sample 1 for channel 1, sample 1 for channel 2, ...
* For mono audio, this has no meaning, every sample is subsequent. For stereo,
* this means the expected format is LRLRLR... with samples for left and right
* alternating.
*
* @param friend_number The friend number of the friend to which to send an
* audio frame.
* @param pcm An array of audio samples. The size of this array must be
* sample_count * channels.
* @param sample_count Number of samples in this frame. Valid numbers here are
* ((sample rate) * (audio length) / 1000), where audio length can be
* 2.5, 5, 10, 20, 40 or 60 millseconds.
* @param channels Number of audio channels. Must be at least 1 for mono.
* For voice over IP, more than 2 channels (stereo) typically doesn't make
* sense, but up to 255 channels are supported.
* @param sampling_rate Audio sampling rate used in this frame. Valid sampling
* rates are 8000, 12000, 16000, 24000, or 48000.
*/
bool toxav_send_audio_frame(ToxAV *av, uint32_t friend_number,
int16_t const *pcm,
size_t sample_count,
uint8_t channels,
uint32_t sampling_rate,
TOXAV_ERR_SEND_FRAME *error);
/*******************************************************************************
*
* :: A/V receiving
*
******************************************************************************/
/**
* The function type for the `receive_video_frame` callback.
*
* Each plane contains (width * height) pixels. The Alpha plane can be NULL, in
* which case every pixel should be assumed fully opaque.
*
* @param friend_number The friend number of the friend who sent a video frame.
* @param width Width of the frame in pixels.
* @param height Height of the frame in pixels.
* @param planes Plane data. To access Y (Luminance) plane use index 0,
* To access U (Chroma) plane use index 1,
* To access V (Chroma) plane use index 2.
* The size of plane data is derived from width and height where
* Y = width * height, U = (width/2) * (height/2) and V = (width/2) * (height/2).
* @param stride Strides data. Indexing is the same as in 'planes' param.
*/
typedef void toxav_receive_video_frame_cb(ToxAV *av, uint32_t friend_number,
uint16_t width, uint16_t height,
uint8_t const *planes[], int32_t const stride[],
void *user_data);
/**
* Set the callback for the `receive_video_frame` event. Pass NULL to unset.
*/
void toxav_callback_receive_video_frame(ToxAV *av, toxav_receive_video_frame_cb *function, void *user_data);
/**
* The function type for the `receive_audio_frame` callback.
*
* @param friend_number The friend number of the friend who sent an audio frame.
* @param pcm An array of audio samples (sample_count * channels elements).
* @param sample_count The number of audio samples per channel in the PCM array.
* @param channels Number of audio channels.
* @param sampling_rate Sampling rate used in this frame.
*
* @see toxav_send_audio_frame for the audio format.
*/
typedef void toxav_receive_audio_frame_cb(ToxAV *av, uint32_t friend_number,
int16_t const *pcm,
size_t sample_count,
uint8_t channels,
uint32_t sampling_rate,
void *user_data);
/**
* Set the callback for the `receive_audio_frame` event. Pass NULL to unset.
*/
void toxav_callback_receive_audio_frame(ToxAV *av, toxav_receive_audio_frame_cb *function, void *user_data);

920
toxav/toxav_new.c
View File

@ -1,920 +0,0 @@
/** toxav.c
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include "toxav_new.h"
#include "msi.h" /* Includes codec.h and rtp.h */
#include "../toxcore/Messenger.h"
#include "../toxcore/logger.h"
#include "../toxcore/util.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#define MAX_ENCODE_TIME_US ((1000 / 24) * 1000)
enum {
audio_index,
video_index,
};
typedef struct iToxAVCall
{
pthread_mutex_t mutex_control[1];
pthread_mutex_t mutex_encoding_audio[1];
pthread_mutex_t mutex_encoding_video[1];
pthread_mutex_t mutex_do[1];
RTPSession *rtps[2]; /** Audio is first and video is second */
CSSession *cs;
bool active;
int32_t friend_number;
int32_t call_idx; /* FIXME msi compat, remove */
struct iToxAVCall *prev;
struct iToxAVCall *next;
} IToxAVCall;
struct toxAV
{
Messenger* m;
MSISession* msi;
/* Two-way storage: first is array of calls and second is list of calls with head and tail */
IToxAVCall** calls;
uint32_t calls_tail;
uint32_t calls_head;
PAIR(toxav_call_cb *, void*) ccb; /* Call callback */
PAIR(toxav_call_state_cb *, void *) scb; /* Call state callback */
PAIR(toxav_receive_audio_frame_cb *, void *) acb; /* Audio frame receive callback */
PAIR(toxav_receive_video_frame_cb *, void *) vcb; /* Video frame receive callback */
/** Decode time measures */
int32_t dmssc; /** Measure count */
int32_t dmsst; /** Last cycle total */
int32_t dmssa; /** Average decoding time in ms */
uint32_t interval; /** Calculated interval */
};
void i_toxav_msi_callback_invite(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_ringing(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_start(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_cancel(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_reject(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_end(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_request_to(void* toxav_inst, int32_t call_idx, void *data); /* TODO remove */
void i_toxav_msi_callback_peer_to(void* toxav_inst, int32_t call_idx, void *data);
void i_toxav_msi_callback_state_change(void* toxav_inst, int32_t call_idx, void *data);
IToxAVCall* i_toxav_get_call(ToxAV* av, uint32_t friend_number);
IToxAVCall* i_toxav_add_call(ToxAV* av, uint32_t friend_number);
void i_toxav_remove_call(ToxAV* av, uint32_t friend_number);
bool i_toxav_audio_bitrate_invalid(uint32_t bitrate);
bool i_toxav_video_bitrate_invalid(uint32_t bitrate);
IToxAVCall* i_toxav_init_call(ToxAV* av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_CALL* error);
bool i_toxav_prepare_transmission(ToxAV* av, IToxAVCall* call);
void i_toxav_kill_transmission(ToxAV* av, IToxAVCall* call);
ToxAV* toxav_new(Tox* tox, TOXAV_ERR_NEW* error)
{
TOXAV_ERR_NEW rc = TOXAV_ERR_NEW_OK;
ToxAV *av = NULL;
if (tox == NULL) {
rc = TOXAV_ERR_NEW_NULL;
goto FAILURE;
}
if (((Messenger*)tox)->msi_packet) {
rc = TOXAV_ERR_NEW_MULTIPLE;
goto FAILURE;
}
av = calloc ( sizeof(ToxAV), 1);
if (av == NULL) {
LOGGER_WARNING("Allocation failed!");
rc = TOXAV_ERR_NEW_MALLOC;
goto FAILURE;
}
av->m = (Messenger *)tox;
av->msi = msi_new(av->m, 100); /* TODO remove max calls */
if (av->msi == NULL) {
rc = TOXAV_ERR_NEW_MALLOC;
goto FAILURE;
}
av->interval = 200;
av->msi->agent_handler = av;
msi_register_callback(av->msi, i_toxav_msi_callback_invite, msi_OnInvite, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_ringing, msi_OnRinging, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_start, msi_OnStart, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_cancel, msi_OnCancel, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_reject, msi_OnReject, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_end, msi_OnEnd, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_request_to, msi_OnRequestTimeout, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_peer_to, msi_OnPeerTimeout, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_state_change, msi_OnPeerCSChange, NULL);
msi_register_callback(av->msi, i_toxav_msi_callback_state_change, msi_OnSelfCSChange, NULL);
if (error)
*error = rc;
return av;
FAILURE:
if (error)
*error = rc;
free(av);
return NULL;
}
void toxav_kill(ToxAV* av)
{
if (av == NULL)
return;
msi_kill(av->msi);
/* TODO iterate over calls */
free(av);
}
Tox* toxav_get_tox(ToxAV* av)
{
return (Tox*) av->m;
}
uint32_t toxav_iteration_interval(const ToxAV* av)
{
return av->interval;
}
void toxav_iteration(ToxAV* av)
{
msi_do(av->msi);
uint64_t start = current_time_monotonic();
uint32_t rc = 200 + av->dmssa; /* If no call is active interval is 200 */
IToxAVCall* i = av->calls[av->calls_head];
for (; i; i = i->next) {
if (i->active) {
cs_do(i->cs);
rc = MIN(i->cs->last_packet_frame_duration, rc);
}
}
av->interval = rc < av->dmssa ? 0 : rc - av->dmssa;
av->dmsst += current_time_monotonic() - start;
if (++av->dmssc == 3) {
av->dmssa = av->dmsst / 3 + 2 /* NOTE Magic Offset for precission */;
av->dmssc = 0;
av->dmsst = 0;
}
}
bool toxav_call(ToxAV* av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_CALL* error)
{
IToxAVCall* call = i_toxav_init_call(av, friend_number, audio_bit_rate, video_bit_rate, error);
if (call == NULL) {
return false;
}
/* TODO remove csettings */
MSICSettings csets;
csets.audio_bitrate = audio_bit_rate;
csets.video_bitrate = video_bit_rate;
csets.call_type = video_bit_rate ? msi_TypeVideo : msi_TypeAudio;
if (msi_invite(av->msi, &call->call_idx, &csets, 1000, friend_number) != 0) {
i_toxav_remove_call(av, friend_number);
if (error)
*error = TOXAV_ERR_CALL_MALLOC; /* FIXME: this should be the only reason to fail */
return false;
}
return true;
}
void toxav_callback_call(ToxAV* av, toxav_call_cb* function, void* user_data)
{
av->ccb.first = function;
av->ccb.second = user_data;
}
bool toxav_answer(ToxAV* av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_ANSWER* error)
{
TOXAV_ERR_ANSWER rc = TOXAV_ERR_ANSWER_OK;
if (m_friend_exists(av->m, friend_number)) {
rc = TOXAV_ERR_ANSWER_FRIEND_NOT_FOUND;
goto END;
}
if ((audio_bit_rate && i_toxav_audio_bitrate_invalid(audio_bit_rate))
||(video_bit_rate && i_toxav_video_bitrate_invalid(video_bit_rate))
) {
rc = TOXAV_ERR_CALL_INVALID_BIT_RATE;
goto END;
}
IToxAVCall* call = i_toxav_get_call(av, friend_number);
if (call == NULL || av->msi->calls[call->call_idx]->state != msi_CallRequested) {
rc = TOXAV_ERR_ANSWER_FRIEND_NOT_CALLING;
goto END;
}
/* TODO remove csettings */
MSICSettings csets;
csets.audio_bitrate = audio_bit_rate;
csets.video_bitrate = video_bit_rate;
csets.call_type = video_bit_rate ? msi_TypeVideo : msi_TypeAudio;
if (msi_answer(av->msi, call->call_idx, &csets) != 0) {
rc = TOXAV_ERR_ANSWER_MALLOC; /* TODO Some error here */
/* TODO Reject call? */
}
END:
if (error)
*error = rc;
return rc == TOXAV_ERR_ANSWER_OK;
}
void toxav_callback_call_state(ToxAV* av, toxav_call_state_cb* function, void* user_data)
{
av->scb.first = function;
av->scb.second = user_data;
}
bool toxav_call_control(ToxAV* av, uint32_t friend_number, TOXAV_CALL_CONTROL control, TOXAV_ERR_CALL_CONTROL* error)
{
TOXAV_ERR_CALL_CONTROL rc = TOXAV_ERR_CALL_CONTROL_OK;
if (m_friend_exists(av->m, friend_number)) {
rc = TOXAV_ERR_CALL_CONTROL_FRIEND_NOT_FOUND;
goto END;
}
IToxAVCall* call = i_toxav_get_call(av, friend_number);
if (call == NULL) {
rc = TOXAV_ERR_CALL_CONTROL_FRIEND_NOT_IN_CALL;
goto END;
}
/* TODO rest of these */
switch (control)
{
case TOXAV_CALL_CONTROL_RESUME: {
} break;
case TOXAV_CALL_CONTROL_PAUSE: {
} break;
case TOXAV_CALL_CONTROL_CANCEL: {
if (av->msi->calls[call->call_idx]->state == msi_CallActive) {
/* Hang up */
msi_hangup(av->msi, call->call_idx);
} else if (av->msi->calls[call->call_idx]->state == msi_CallRequested) {
/* Reject the call */
msi_reject(av->msi, call->call_idx);
} else if (av->msi->calls[call->call_idx]->state == msi_CallRequesting) {
/* Cancel the call */
msi_cancel(av->msi, call->call_idx);
}
} break;
case TOXAV_CALL_CONTROL_MUTE_AUDIO: {
} break;
case TOXAV_CALL_CONTROL_MUTE_VIDEO: {
} break;
}
END:
if (error)
*error = rc;
return rc == TOXAV_ERR_CALL_CONTROL_OK;
}
bool toxav_set_audio_bit_rate(ToxAV* av, uint32_t friend_number, uint32_t audio_bit_rate, TOXAV_ERR_BIT_RATE* error)
{
/* TODO */
}
bool toxav_set_video_bit_rate(ToxAV* av, uint32_t friend_number, uint32_t video_bit_rate, TOXAV_ERR_BIT_RATE* error)
{
/* TODO */
}
void toxav_callback_request_video_frame(ToxAV* av, toxav_request_video_frame_cb* function, void* user_data)
{
/* TODO */
}
bool toxav_send_video_frame(ToxAV* av, uint32_t friend_number, uint16_t width, uint16_t height, const uint8_t* y, const uint8_t* u, const uint8_t* v, TOXAV_ERR_SEND_FRAME* error)
{
TOXAV_ERR_SEND_FRAME rc = TOXAV_ERR_SEND_FRAME_OK;
IToxAVCall* call;
if (m_friend_exists(av->m, friend_number)) {
rc = TOXAV_ERR_SEND_FRAME_FRIEND_NOT_FOUND;
goto END;
}
call = i_toxav_get_call(av, friend_number);
if (call == NULL) {
rc = TOXAV_ERR_SEND_FRAME_FRIEND_NOT_IN_CALL;
goto END;
}
if (av->msi->calls[call->call_idx]->state != msi_CallActive) {
/* TODO */
rc = TOXAV_ERR_SEND_FRAME_NOT_REQUESTED;
goto END;
}
if ( y == NULL || u == NULL || v == NULL ) {
rc = TOXAV_ERR_SEND_FRAME_NULL;
goto END;
}
if ( cs_set_sending_video_resolution(call->cs, width, height) != 0 ) {
rc = TOXAV_ERR_SEND_FRAME_INVALID;
goto END;
}
{ /* Encode */
vpx_image_t img;
img.w = img.h = img.d_w = img.d_h = 0;
vpx_img_alloc(&img, VPX_IMG_FMT_VPXI420, width, height, 1);
/* I420 "It comprises an NxM Y plane followed by (N/2)x(M/2) V and U planes."
* http://fourcc.org/yuv.php#IYUV
*/
memcpy(img.planes[VPX_PLANE_Y], y, width * height);
memcpy(img.planes[VPX_PLANE_U], u, (width/2) * (height/2));
memcpy(img.planes[VPX_PLANE_V], v, (width/2) * (height/2));
int vrc = vpx_codec_encode(call->cs->v_encoder, &img,
call->cs->frame_counter, 1, 0, MAX_ENCODE_TIME_US);
vpx_img_free(&img); /* FIXME don't free? */
if ( vrc != VPX_CODEC_OK) {
LOGGER_ERROR("Could not encode video frame: %s\n", vpx_codec_err_to_string(vrc));
rc = TOXAV_ERR_SEND_FRAME_INVALID;
goto END;
}
}
++call->cs->frame_counter;
{ /* Split and send */
vpx_codec_iter_t iter = NULL;
const vpx_codec_cx_pkt_t *pkt;
cs_init_video_splitter_cycle(call->cs);
while ( (pkt = vpx_codec_get_cx_data(call->cs->v_encoder, &iter)) ) {
if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
int parts = cs_update_video_splitter_cycle(call->cs, pkt->data.frame.buf,
pkt->data.frame.sz);
if (parts < 0) /* Should never happen though */
continue;
uint16_t part_size;
const uint8_t *iter;
int i;
for (i = 0; i < parts; i++) {
iter = cs_iterate_split_video_frame(call->cs, &part_size);
if (rtp_send_msg(call->rtps[video_index], iter, part_size) < 0)
goto END;
}
}
}
}
END:
if (error)
*error = rc;
return rc == TOXAV_ERR_SEND_FRAME_OK;
}
void toxav_callback_request_audio_frame(ToxAV* av, toxav_request_audio_frame_cb* function, void* user_data)
{
/* TODO */
}
bool toxav_send_audio_frame(ToxAV* av, uint32_t friend_number, const int16_t* pcm, size_t sample_count, uint8_t channels, uint32_t sampling_rate, TOXAV_ERR_SEND_FRAME* error)
{
TOXAV_ERR_SEND_FRAME rc = TOXAV_ERR_SEND_FRAME_OK;
IToxAVCall* call;
if (m_friend_exists(av->m, friend_number)) {
rc = TOXAV_ERR_SEND_FRAME_FRIEND_NOT_FOUND;
goto END;
}
call = i_toxav_get_call(av, friend_number);
if (call == NULL) {
rc = TOXAV_ERR_SEND_FRAME_FRIEND_NOT_IN_CALL;
goto END;
}
if (av->msi->calls[call->call_idx]->state != msi_CallActive) {
/* TODO */
rc = TOXAV_ERR_SEND_FRAME_NOT_REQUESTED;
goto END;
}
if ( pcm == NULL ) {
rc = TOXAV_ERR_SEND_FRAME_NULL;
goto END;
}
if ( channels != 1 || channels != 2 ) {
rc = TOXAV_ERR_SEND_FRAME_INVALID;
goto END;
}
{ /* Encode and send */
/* TODO redundant? */
cs_set_sending_audio_channels(call->cs, channels);
cs_set_sending_audio_sampling_rate(call->cs, sampling_rate);
uint8_t dest[sample_count * channels * 2 /* sizeof(uint16_t) */];
int vrc = opus_encode(call->cs->audio_encoder, pcm, sample_count, dest, sizeof (dest));
if (vrc < 0) {
LOGGER_WARNING("Failed to encode frame");
rc = TOXAV_ERR_SEND_FRAME_INVALID;
goto END;
}
vrc = rtp_send_msg(call->rtps[audio_index], dest, vrc);
/* TODO check for error? */
}
END:
if (error)
*error = rc;
return rc == TOXAV_ERR_SEND_FRAME_OK;
}
void toxav_callback_receive_video_frame(ToxAV* av, toxav_receive_video_frame_cb* function, void* user_data)
{
av->vcb.first = function;
av->vcb.second = user_data;
}
void toxav_callback_receive_audio_frame(ToxAV* av, toxav_receive_audio_frame_cb* function, void* user_data)
{
av->acb.first = function;
av->acb.second = user_data;
}
/*******************************************************************************
*
* :: Internal
*
******************************************************************************/
/** TODO:
* - In msi call_idx can be the same as friend id
* - If crutial callback not present send error
* - Remove *data from msi
* - Remove CSettings from msi
*/
void i_toxav_msi_callback_invite(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
uint32_t ab = toxav->msi->calls[call_idx]->csettings_peer[0].audio_bitrate;
uint32_t vb = toxav->msi->calls[call_idx]->csettings_peer[0].video_bitrate;
IToxAVCall* call = i_toxav_init_call(toxav, toxav->msi->calls[call_idx]->peers[0], ab, vb, NULL);
if (call == NULL) {
msi_reject(toxav->msi, call_idx, NULL);
return false;
}
call->call_idx = call_idx;
if (toxav->ccb.first)
toxav->ccb.first(toxav, toxav->msi->calls[call_idx]->peers[0], true, true, toxav->ccb.second);
}
void i_toxav_msi_callback_ringing(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
if (toxav->scb.first)
toxav->scb.first(toxav, toxav->msi->calls[call_idx]->peers[0],
TOXAV_CALL_STATE_RINGING, toxav->scb.second);
}
void i_toxav_msi_callback_start(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
IToxAVCall* call = i_toxav_get_call(toxav, toxav->msi->calls[call_idx]->peers[0]);
if (call == NULL || !i_toxav_prepare_transmission(toxav, call)) {
/* TODO send error */
i_toxav_remove_call(toxav, toxav->msi->calls[call_idx]->peers[0]);
return;
}
TOXAV_CALL_STATE state;
const MSICSettings* csets = toxav->msi->calls[call_idx]->csettings_peer[0];
if (csets->audio_bitrate && csets->video_bitrate)
state = TOXAV_CALL_STATE_SENDING_AV;
else if (csets->video_bitrate == 0)
state = TOXAV_CALL_STATE_SENDING_A;
else
state = TOXAV_CALL_STATE_SENDING_V;
if (toxav->scb.first) /* TODO this */
toxav->scb.first(toxav, call->friend_number, state, toxav->scb.second);
}
void i_toxav_msi_callback_cancel(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
if (toxav->scb.first)
toxav->scb.first(toxav, toxav->msi->calls[call_idx]->peers[0],
TOXAV_CALL_STATE_END, toxav->scb.second);
}
void i_toxav_msi_callback_reject(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
if (toxav->scb.first)
toxav->scb.first(toxav, toxav->msi->calls[call_idx]->peers[0],
TOXAV_CALL_STATE_END, toxav->scb.second);
}
void i_toxav_msi_callback_end(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
if (toxav->scb.first)
toxav->scb.first(toxav, toxav->msi->calls[call_idx]->peers[0],
TOXAV_CALL_STATE_END, toxav->scb.second);
}
void i_toxav_msi_callback_request_to(void* toxav_inst, int32_t call_idx, void* data)
{
/* TODO remove */
ToxAV* toxav = toxav_inst;
if (toxav->scb.first)
toxav->scb.first(toxav, toxav->msi->calls[call_idx]->peers[0],
TOXAV_CALL_STATE_ERROR, toxav->scb.second);
}
void i_toxav_msi_callback_peer_to(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
if (toxav->scb.first)
toxav->scb.first(toxav, toxav->msi->calls[call_idx]->peers[0],
TOXAV_CALL_STATE_ERROR, toxav->scb.second);
}
void i_toxav_msi_callback_state_change(void* toxav_inst, int32_t call_idx, void* data)
{
ToxAV* toxav = toxav_inst;
/* TODO something something msi */
}
IToxAVCall* i_toxav_get_call(ToxAV* av, uint32_t friend_number)
{
if (av->calls_tail < friend_number)
return NULL;
return av->calls[friend_number];
}
IToxAVCall* i_toxav_add_call(ToxAV* av, uint32_t friend_number)
{
IToxAVCall* rc = calloc(sizeof(IToxAVCall), 1);
if (rc == NULL)
return NULL;
rc->friend_number = friend_number;
if (create_recursive_mutex(rc->mutex_control) != 0) {
free(rc);
return NULL;
}
if (create_recursive_mutex(rc->mutex_do) != 0) {
pthread_mutex_destroy(rc->mutex_control);
free(rc);
return NULL;
}
if (av->calls == NULL) { /* Creating */
av->calls = calloc (sizeof(IToxAVCall*), friend_number + 1);
if (av->calls == NULL) {
pthread_mutex_destroy(rc->mutex_control);
pthread_mutex_destroy(rc->mutex_do);
free(rc);
return NULL;
}
av->calls_tail = av->calls_head = friend_number;
} else if (av->calls_tail < friend_number) { /* Appending */
void* tmp = realloc(av->calls, sizeof(IToxAVCall*) * friend_number + 1);
if (tmp == NULL) {
pthread_mutex_destroy(rc->mutex_control);
pthread_mutex_destroy(rc->mutex_do);
free(rc);
return NULL;
}
av->calls = tmp;
/* Set fields in between to null */
int32_t i = av->calls_tail;
for (; i < friend_number; i ++)
av->calls[i] = NULL;
rc->prev = av->calls[av->calls_tail];
av->calls[av->calls_tail]->next = rc;
av->calls_tail = friend_number;
} else if (av->calls_head > friend_number) { /* Inserting at front */
rc->next = av->calls[av->calls_head];
av->calls[av->calls_head]->prev = rc;
av->calls_head = friend_number;
}
av->calls[friend_number] = rc;
return rc;
}
void i_toxav_remove_call(ToxAV* av, uint32_t friend_number)
{
IToxAVCall* tc = i_toxav_get_call(av, friend_number);
if (tc == NULL)
return;
IToxAVCall* prev = tc->prev;
IToxAVCall* next = tc->next;
pthread_mutex_destroy(tc->mutex_control);
pthread_mutex_destroy(tc->mutex_do);
free(tc);
if (prev)
prev->next = next;
else if (next)
av->calls_head = next->friend_number;
else goto CLEAR;
if (next)
next->prev = prev;
else if (prev)
av->calls_tail = prev->friend_number;
else goto CLEAR;
av->calls[friend_number] = NULL;
return;
CLEAR:
av->calls_head = av->calls_tail = 0;
free(av->calls);
av->calls = NULL;
}
bool i_toxav_audio_bitrate_invalid(uint32_t bitrate)
{
/* Opus RFC 6716 section-2.1.1 dictates the following:
* Opus supports all bitrates from 6 kbit/s to 510 kbit/s.
*/
return bitrate < 6 || bitrate > 510;
}
bool i_toxav_video_bitrate_invalid(uint32_t bitrate)
{
/* TODO: If anyone knows the answer to this one please fill it up */
return false;
}
IToxAVCall* i_toxav_init_call(ToxAV* av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_CALL* error)
{
TOXAV_ERR_CALL rc = TOXAV_ERR_CALL_OK;
IToxAVCall* call = NULL;
if (m_friend_exists(av->m, friend_number)) {
rc = TOXAV_ERR_CALL_FRIEND_NOT_FOUND;
goto END;
}
if (m_get_friend_connectionstatus(av->m, friend_number) != 1) {
rc = TOXAV_ERR_CALL_FRIEND_NOT_CONNECTED;
goto END;
}
if (i_toxav_get_call(av, friend_number) != NULL) {
rc = TOXAV_ERR_CALL_FRIEND_ALREADY_IN_CALL;
goto END;
}
if ((audio_bit_rate && i_toxav_audio_bitrate_invalid(audio_bit_rate))
||(video_bit_rate && i_toxav_video_bitrate_invalid(video_bit_rate))
) {
rc = TOXAV_ERR_CALL_INVALID_BIT_RATE;
goto END;
}
IToxAVCall* call = i_toxav_add_call(av, friend_number);
if (call == NULL) {
rc = TOXAV_ERR_CALL_MALLOC;
}
END:
if (error)
*error = rc;
return call;
}
bool i_toxav_prepare_transmission(ToxAV* av, IToxAVCall* call)
{
pthread_mutex_lock(call->mutex_control);
if (call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Call already active!\n");
return true;
}
if (pthread_mutex_init(call->mutex_encoding_audio, NULL) != 0)
goto MUTEX_INIT_ERROR;
if (pthread_mutex_init(call->mutex_encoding_video, NULL) != 0) {
pthread_mutex_destroy(call->mutex_encoding_audio);
goto MUTEX_INIT_ERROR;
}
if (pthread_mutex_init(call->mutex_do, NULL) != 0) {
pthread_mutex_destroy(call->mutex_encoding_audio);
pthread_mutex_destroy(call->mutex_encoding_video);
goto MUTEX_INIT_ERROR;
}
const MSICSettings *c_peer = &av->msi->calls[call->call_idx]->csettings_peer[0];
const MSICSettings *c_self = &av->msi->calls[call->call_idx]->csettings_local;
call->cs = cs_new(c_self->audio_bitrate, c_peer->audio_bitrate,
c_self->video_bitrate, c_peer->video_bitrate);
if ( !call->cs ) {
LOGGER_ERROR("Error while starting Codec State!\n");
goto FAILURE;
}
call->cs->agent = av;
call->cs->call_idx = call->call_idx;
if (c_self->audio_bitrate > 0 || c_peer->audio_bitrate > 0) { /* Prepare audio rtp */
call->rtps[audio_index] = rtp_new(msi_TypeAudio, av->m, av->msi->calls[call->call_idx]->peers[0]);
if ( !call->rtps[audio_index] ) {
LOGGER_ERROR("Error while starting audio RTP session!\n");
goto FAILURE;
}
call->rtps[audio_index]->cs = call->cs;
if (c_peer->audio_bitrate > 0)
rtp_register_for_receiving(call->rtps[audio_index]);
}
if (c_self->video_bitrate > 0 || c_peer->video_bitrate > 0) { /* Prepare video rtp */
call->rtps[video_index] = rtp_new(msi_TypeVideo, av->m, av->msi->calls[call->call_idx]->peers[0]);
if ( !call->rtps[video_index] ) {
LOGGER_ERROR("Error while starting video RTP session!\n");
goto FAILURE;
}
call->rtps[video_index]->cs = call->cs;
if (c_peer->video_bitrate > 0)
rtp_register_for_receiving(call->rtps[audio_index]);
}
call->active = 1;
pthread_mutex_unlock(call->mutex_control);
return true;
FAILURE:
rtp_kill(call->rtps[audio_index]);
call->rtps[audio_index] = NULL;
rtp_kill(call->rtps[video_index]);
call->rtps[video_index] = NULL;
cs_kill(call->cs);
call->cs = NULL;
call->active = 0;
pthread_mutex_destroy(call->mutex_encoding_audio);
pthread_mutex_destroy(call->mutex_encoding_video);
pthread_mutex_destroy(call->mutex_do);
pthread_mutex_unlock(call->mutex_control);
return false;
MUTEX_INIT_ERROR:
pthread_mutex_unlock(call->mutex_control);
LOGGER_ERROR("Mutex initialization failed!\n");
return false;
}
void i_toxav_kill_transmission(ToxAV* av, IToxAVCall* call)
{
pthread_mutex_lock(call->mutex_control);
if (!call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Action on inactive call: %d", call->call_idx);
return;
}
call->active = 0;
pthread_mutex_lock(call->mutex_encoding_audio);
pthread_mutex_unlock(call->mutex_encoding_audio);
pthread_mutex_lock(call->mutex_encoding_video);
pthread_mutex_unlock(call->mutex_encoding_video);
pthread_mutex_lock(call->mutex_do);
pthread_mutex_unlock(call->mutex_do);
rtp_kill(call->rtps[audio_index]);
call->rtps[audio_index] = NULL;
rtp_kill(call->rtps[video_index]);
call->rtps[video_index] = NULL;
cs_kill(call->cs);
call->cs = NULL;
pthread_mutex_destroy(call->mutex_encoding_audio);
pthread_mutex_destroy(call->mutex_encoding_video);
pthread_mutex_destroy(call->mutex_do);
pthread_mutex_unlock(call->mutex_control);
}

481
toxav/toxav_new.h
View File

@ -1,481 +0,0 @@
#pragma once
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
/** \page av Public audio/video API for Tox clients.
*
* Unlike the Core API, this API is fully thread-safe. The library will ensure
* the proper synchronisation of parallel calls.
*/
/**
* The type of the Tox Audio/Video subsystem object.
*/
typedef struct toxAV ToxAV;
#ifndef TOX_DEFINED
#define TOX_DEFINED
/**
* The type of a Tox instance. Repeated here so this file does not have a direct
* dependency on the Core interface.
*/
typedef struct Tox Tox;
#endif
/*******************************************************************************
*
* :: Creation and destruction
*
******************************************************************************/
typedef enum TOXAV_ERR_NEW {
TOXAV_ERR_NEW_OK,
TOXAV_ERR_NEW_NULL,
/**
* Memory allocation failure while trying to allocate structures required for
* the A/V session.
*/
TOXAV_ERR_NEW_MALLOC,
/**
* Attempted to create a second session for the same Tox instance.
*/
TOXAV_ERR_NEW_MULTIPLE
} TOXAV_ERR_NEW;
/**
* Start new A/V session. There can only be only one session per Tox instance.
*/
ToxAV *toxav_new(Tox *tox, TOXAV_ERR_NEW *error);
/**
* Releases all resources associated with the A/V session.
*
* If any calls were ongoing, these will be forcibly terminated without
* notifying peers. After calling this function, no other functions may be
* called and the av pointer becomes invalid.
*/
void toxav_kill(ToxAV *av);
/**
* Returns the Tox instance the A/V object was created for.
*/
Tox *toxav_get_tox(ToxAV *av);
/*******************************************************************************
*
* :: A/V event loop
*
******************************************************************************/
/**
* Returns the interval in milliseconds when the next toxav_iteration should be
* called. If no call is active at the moment, this function returns 200.
*/
uint32_t toxav_iteration_interval(ToxAV const *av);
/**
* Main loop for the session. This function needs to be called in intervals of
* toxav_iteration_interval() milliseconds. It is best called in the same loop
* as tox_iteration.
*/
void toxav_iteration(ToxAV *av);
/*******************************************************************************
*
* :: Call setup
*
******************************************************************************/
typedef enum TOXAV_ERR_CALL {
TOXAV_ERR_CALL_OK,
/**
* A resource allocation error occurred while trying to create the structures
* required for the call.
*/
TOXAV_ERR_CALL_MALLOC,
/**
* The friend number did not designate a valid friend.
*/
TOXAV_ERR_CALL_FRIEND_NOT_FOUND,
/**
* The friend was valid, but not currently connected.
*/
TOXAV_ERR_CALL_FRIEND_NOT_CONNECTED,
/**
* Attempted to call a friend while already in an audio or video call with
* them.
*/
TOXAV_ERR_CALL_FRIEND_ALREADY_IN_CALL,
/**
* Audio or video bit rate is invalid.
*/
TOXAV_ERR_CALL_INVALID_BIT_RATE
} TOXAV_ERR_CALL;
/**
* Call a friend. This will start ringing the friend.
*
* It is the client's responsibility to stop ringing after a certain timeout,
* if such behaviour is desired. If the client does not stop ringing, the A/V
* library will not stop until the friend is disconnected.
*
* @param friend_number The friend number of the friend that should be called.
* @param audio_bit_rate Audio bit rate in Kb/sec. Set this to 0 to disable
* audio sending.
* @param video_bit_rate Video bit rate in Kb/sec. Set this to 0 to disable
* video sending.
*/
bool toxav_call(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_CALL *error);
/**
* The function type for the `call` callback.
*/
typedef void toxav_call_cb(ToxAV *av, uint32_t friend_number, bool audio_enabled, bool video_enabled, void *user_data);
/**
* Set the callback for the `call` event. Pass NULL to unset.
*
* This event is triggered when a call is received from a friend.
*/
void toxav_callback_call(ToxAV *av, toxav_call_cb *function, void *user_data);
typedef enum TOXAV_ERR_ANSWER {
TOXAV_ERR_ANSWER_OK,
/**
* A resource allocation error occurred while trying to create the structures
* required for the call.
*/
TOXAV_ERR_ANSWER_MALLOC,
/**
* The friend number did not designate a valid friend.
*/
TOXAV_ERR_ANSWER_FRIEND_NOT_FOUND,
/**
* The friend was valid, but they are not currently trying to initiate a call.
* This is also returned if this client is already in a call with the friend.
*/
TOXAV_ERR_ANSWER_FRIEND_NOT_CALLING,
/**
* Audio or video bit rate is invalid.
*/
TOXAV_ERR_ANSWER_INVALID_BIT_RATE
} TOXAV_ERR_ANSWER;
/**
* Accept an incoming call.
*
* If an allocation error occurs while answering a call, both participants will
* receive TOXAV_CALL_STATE_ERROR and the call will end.
*
* @param friend_number The friend number of the friend that is calling.
* @param audio_bit_rate Audio bit rate in Kb/sec. Set this to 0 to disable
* audio sending.
* @param video_bit_rate Video bit rate in Kb/sec. Set this to 0 to disable
* video sending.
*/
bool toxav_answer(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, uint32_t video_bit_rate, TOXAV_ERR_ANSWER *error);
/*******************************************************************************
*
* :: Call state graph
*
******************************************************************************/
typedef enum TOXAV_CALL_STATE {
/**
* The friend's client is aware of the call. This happens after calling
* toxav_call and the initial call request has been received.
*/
TOXAV_CALL_STATE_RINGING,
/**
* Not sending anything. Either the friend requested that this client stops
* sending anything, or the client turned off both audio and video by setting
* the respective bit rates to 0.
*
* If both sides are in this state, the call is effectively on hold, but not
* in the PAUSED state.
*/
TOXAV_CALL_STATE_NOT_SENDING,
/**
* Sending audio only. Either the friend requested that this client stops
* sending video, or the client turned off video by setting the video bit rate
* to 0.
*/
TOXAV_CALL_STATE_SENDING_A,
/**
* Sending video only. Either the friend requested that this client stops
* sending audio (muted), or the client turned off audio by setting the audio
* bit rate to 0.
*/
TOXAV_CALL_STATE_SENDING_V,
/**
* Sending both audio and video.
*/
TOXAV_CALL_STATE_SENDING_AV,
/**
* The call is on hold. Both sides stop sending and receiving.
*/
TOXAV_CALL_STATE_PAUSED,
/**
* The call has finished. This is the final state after which no more state
* transitions can occur for the call.
*/
TOXAV_CALL_STATE_END,
/**
* Sent by the AV core if an error occurred on the remote end.
*/
TOXAV_CALL_STATE_ERROR
} TOXAV_CALL_STATE;
/**
* The function type for the `call_state` callback.
*
* @param friend_number The friend number for which the call state changed.
* @param state The new call state.
*/
typedef void toxav_call_state_cb(ToxAV *av, uint32_t friend_number, TOXAV_CALL_STATE state, void *user_data);
/**
* Set the callback for the `call_state` event. Pass NULL to unset.
*
* This event is triggered when a call state transition occurs.
*/
void toxav_callback_call_state(ToxAV *av, toxav_call_state_cb *function, void *user_data);
/*******************************************************************************
*
* :: Call control
*
******************************************************************************/
typedef enum TOXAV_CALL_CONTROL {
/**
* Resume a previously paused call. Only valid if the pause was caused by this
* client. Not valid before the call is accepted.
*/
TOXAV_CALL_CONTROL_RESUME,
/**
* Put a call on hold. Not valid before the call is accepted.
*/
TOXAV_CALL_CONTROL_PAUSE,
/**
* Reject a call if it was not answered, yet. Cancel a call after it was
* answered.
*/
TOXAV_CALL_CONTROL_CANCEL,
/**
* Request that the friend stops sending audio. Regardless of the friend's
* compliance, this will cause the `receive_audio_frame` event to stop being
* triggered on receiving an audio frame from the friend.
*/
TOXAV_CALL_CONTROL_MUTE_AUDIO,
/**
* Request that the friend stops sending video. Regardless of the friend's
* compliance, this will cause the `receive_video_frame` event to stop being
* triggered on receiving an video frame from the friend.
*/
TOXAV_CALL_CONTROL_MUTE_VIDEO
} TOXAV_CALL_CONTROL;
typedef enum TOXAV_ERR_CALL_CONTROL {
TOXAV_ERR_CALL_CONTROL_OK,
/**
* The friend_number passed did not designate a valid friend.
*/
TOXAV_ERR_CALL_CONTROL_FRIEND_NOT_FOUND,
/**
* This client is currently not in a call with the friend. Before the call is
* answered, only CANCEL is a valid control.
*/
TOXAV_ERR_CALL_CONTROL_FRIEND_NOT_IN_CALL,
/**
* Attempted to resume a call that was not paused.
*/
TOXAV_ERR_CALL_CONTROL_NOT_PAUSED,
/**
* Attempted to resume a call that was paused by the other party. Also set if
* the client attempted to send a system-only control.
*/
TOXAV_ERR_CALL_CONTROL_DENIED,
/**
* The call was already paused on this client. It is valid to pause if the
* other party paused the call. The call will resume after both parties sent
* the RESUME control.
*/
TOXAV_ERR_CALL_CONTROL_ALREADY_PAUSED
} TOXAV_ERR_CALL_CONTROL;
/**
* Sends a call control command to a friend.
*
* @param friend_number The friend number of the friend this client is in a call
* with.
* @param control The control command to send.
*
* @return true on success.
*/
bool toxav_call_control(ToxAV *av, uint32_t friend_number, TOXAV_CALL_CONTROL control, TOXAV_ERR_CALL_CONTROL *error);
/*******************************************************************************
*
* :: Controlling bit rates
*
******************************************************************************/
typedef enum TOXAV_ERR_BIT_RATE {
TOXAV_ERR_BIT_RATE_OK,
/**
* The bit rate passed was not one of the supported values.
*/
TOXAV_ERR_BIT_RATE_INVALID
} TOXAV_ERR_BIT_RATE;
/**
* Set the audio bit rate to be used in subsequent audio frames.
*
* @param friend_number The friend number of the friend for which to set the
* audio bit rate.
* @param audio_bit_rate The new audio bit rate in Kb/sec. Set to 0 to disable
* audio sending.
*
* @see toxav_call for the valid bit rates.
*/
bool toxav_set_audio_bit_rate(ToxAV *av, uint32_t friend_number, uint32_t audio_bit_rate, TOXAV_ERR_BIT_RATE *error);
/**
* Set the video bit rate to be used in subsequent video frames.
*
* @param friend_number The friend number of the friend for which to set the
* video bit rate.
* @param video_bit_rate The new video bit rate in Kb/sec. Set to 0 to disable
* video sending.
*
* @see toxav_call for the valid bit rates.
*/
bool toxav_set_video_bit_rate(ToxAV *av, uint32_t friend_number, uint32_t video_bit_rate, TOXAV_ERR_BIT_RATE *error);
/*******************************************************************************
*
* :: A/V sending
*
******************************************************************************/
/**
* Common error codes for the send_*_frame functions.
*/
typedef enum TOXAV_ERR_SEND_FRAME {
TOXAV_ERR_SEND_FRAME_OK,
/**
* In case of video, one of Y, U, or V was NULL. In case of audio, the samples
* data pointer was NULL.
*/
TOXAV_ERR_SEND_FRAME_NULL,
/**
* The friend_number passed did not designate a valid friend.
*/
TOXAV_ERR_SEND_FRAME_FRIEND_NOT_FOUND,
/**
* This client is currently not in a call with the friend.
*/
TOXAV_ERR_SEND_FRAME_FRIEND_NOT_IN_CALL,
/**
* No video frame had been requested through the `request_video_frame` event,
* but the client tried to send one, anyway.
*/
TOXAV_ERR_SEND_FRAME_NOT_REQUESTED,
/**
* One of the frame parameters was invalid. E.g. the resolution may be too
* small or too large, or the audio sampling rate may be unsupported.
*/
TOXAV_ERR_SEND_FRAME_INVALID
} TOXAV_ERR_SEND_FRAME;
/**
* The function type for the `request_video_frame` callback.
*
* @param friend_number The friend number of the friend for which the next video
* frame should be sent.
*/
typedef void toxav_request_video_frame_cb(ToxAV *av, uint32_t friend_number, void *user_data);
/**
* Set the callback for the `request_video_frame` event. Pass NULL to unset.
*/
void toxav_callback_request_video_frame(ToxAV *av, toxav_request_video_frame_cb *function, void *user_data);
/**
* Send a video frame to a friend.
*
* This is called in response to receiving the `request_video_frame` event.
*
* Y - plane should be of size: height * width
* U - plane should be of size: (height/2) * (width/2)
* V - plane should be of size: (height/2) * (width/2)
*
* @param friend_number The friend number of the friend to which to send a video
* frame.
* @param width Width of the frame in pixels.
* @param height Height of the frame in pixels.
* @param y Y (Luminance) plane data.
* @param u U (Chroma) plane data.
* @param v V (Chroma) plane data.
*/
bool toxav_send_video_frame(ToxAV *av, uint32_t friend_number,
uint16_t width, uint16_t height,
uint8_t const *y, uint8_t const *u, uint8_t const *v,
TOXAV_ERR_SEND_FRAME *error);
/**
* The function type for the `request_audio_frame` callback.
*
* @param friend_number The friend number of the friend for which the next audio
* frame should be sent.
*/
typedef void toxav_request_audio_frame_cb(ToxAV *av, uint32_t friend_number, void *user_data);
/**
* Set the callback for the `request_audio_frame` event. Pass NULL to unset.
*/
void toxav_callback_request_audio_frame(ToxAV *av, toxav_request_audio_frame_cb *function, void *user_data);
/**
* Send an audio frame to a friend.
*
* This is called in response to receiving the `request_audio_frame` event.
*
* The expected format of the PCM data is: [s1c1][s1c2][...][s2c1][s2c2][...]...
* Meaning: sample 1 for channel 1, sample 1 for channel 2, ...
* For mono audio, this has no meaning, every sample is subsequent. For stereo,
* this means the expected format is LRLRLR... with samples for left and right
* alternating.
*
* @param friend_number The friend number of the friend to which to send an
* audio frame.
* @param pcm An array of audio samples. The size of this array must be
* sample_count * channels.
* @param sample_count Number of samples in this frame. Valid numbers here are
* ((sample rate) * (audio length) / 1000), where audio length can be
* 2.5, 5, 10, 20, 40 or 60 millseconds.
* @param channels Number of audio channels. Must be at least 1 for mono.
* For voice over IP, more than 2 channels (stereo) typically doesn't make
* sense, but up to 255 channels are supported.
* @param sampling_rate Audio sampling rate used in this frame. Valid sampling
* rates are 8000, 12000, 16000, 24000, or 48000.
*/
bool toxav_send_audio_frame(ToxAV *av, uint32_t friend_number,
int16_t const *pcm,
size_t sample_count,
uint8_t channels,
uint32_t sampling_rate,
TOXAV_ERR_SEND_FRAME *error);
/*******************************************************************************
*
* :: A/V receiving
*
******************************************************************************/
/**
* The function type for the `receive_video_frame` callback.
*
* Each plane contains (width * height) pixels. The Alpha plane can be NULL, in
* which case every pixel should be assumed fully opaque.
*
* @param friend_number The friend number of the friend who sent a video frame.
* @param width Width of the frame in pixels.
* @param height Height of the frame in pixels.
* @param y Y (Luminance) plane data.
* @param u U (Chroma) plane data.
* @param v V (Chroma) plane data.
* @param a A (Alpha) plane data.
*/
typedef void toxav_receive_video_frame_cb(ToxAV *av, uint32_t friend_number,
uint16_t width, uint16_t height,
uint8_t const *y, uint8_t const *u, uint8_t const *v, uint8_t const *a,
void *user_data);
/**
* Set the callback for the `receive_video_frame` event. Pass NULL to unset.
*/
void toxav_callback_receive_video_frame(ToxAV *av, toxav_receive_video_frame_cb *function, void *user_data);
/**
* The function type for the `receive_audio_frame` callback.
*
* @param friend_number The friend number of the friend who sent an audio frame.
* @param pcm An array of audio samples (sample_count * channels elements).
* @param sample_count The number of audio samples per channel in the PCM array.
* @param channels Number of audio channels.
* @param sampling_rate Sampling rate used in this frame.
*
* @see toxav_send_audio_frame for the audio format.
*/
typedef void toxav_receive_audio_frame_cb(ToxAV *av, uint32_t friend_number,
int16_t const *pcm,
size_t sample_count,
uint8_t channels,
uint32_t sampling_rate,
void *user_data);
/**
* Set the callback for the `receive_audio_frame` event. Pass NULL to unset.
*/
void toxav_callback_receive_audio_frame(ToxAV *av, toxav_receive_audio_frame_cb *function, void *user_data);

689
toxav/toxav_new_1.c Normal file
View File

@ -0,0 +1,689 @@
/** toxav.c
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#define __TOX_DEFINED__
typedef struct Messenger Tox;
#define _GNU_SOURCE /* implicit declaration warning */
#include "codec.h"
#include "msi.h"
#include "group.h"
#include "../toxcore/logger.h"
#include "../toxcore/util.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
/* Assume 24 fps*/
#define MAX_ENCODE_TIME_US ((1000 / 24) * 1000)
/* true if invalid call index */
#define CALL_INVALID_INDEX(idx, max) (idx < 0 || idx >= max)
const ToxAvCSettings av_DefaultSettings = {
av_TypeAudio,
500,
1280,
720,
32000,
20,
48000,
1
};
static const uint32_t jbuf_capacity = 6;
static const uint8_t audio_index = 0, video_index = 1;
typedef struct _ToxAvCall {
pthread_mutex_t mutex_control[1];
pthread_mutex_t mutex_encoding_audio[1];
pthread_mutex_t mutex_encoding_video[1];
pthread_mutex_t mutex_do[1];
RTPSession *crtps[2]; /** Audio is first and video is second */
CSSession *cs;
_Bool active;
} ToxAvCall;
struct _ToxAv {
Messenger *messenger;
MSISession *msi_session; /** Main msi session */
ToxAvCall *calls; /** Per-call params */
uint32_t max_calls;
PAIR(ToxAvAudioCallback, void *) acb;
PAIR(ToxAvVideoCallback, void *) vcb;
/* Decode time measure */
int32_t dectmsscount; /** Measure count */
int32_t dectmsstotal; /** Last cycle total */
int32_t avgdectms; /** Average decoding time in ms */
};
static const MSICSettings *msicsettings_cast (const ToxAvCSettings *from)
{
assert(sizeof(MSICSettings) == sizeof(ToxAvCSettings));
return (const MSICSettings *) from;
}
static const ToxAvCSettings *toxavcsettings_cast (const MSICSettings *from)
{
assert(sizeof(MSICSettings) == sizeof(ToxAvCSettings));
return (const ToxAvCSettings *) from;
}
ToxAv *toxav_new( Tox *messenger, int32_t max_calls)
{
ToxAv *av = calloc ( sizeof(ToxAv), 1);
if (av == NULL) {
LOGGER_WARNING("Allocation failed!");
return NULL;
}
av->messenger = (Messenger *)messenger;
av->msi_session = msi_new(av->messenger, max_calls);
av->msi_session->agent_handler = av;
av->calls = calloc(sizeof(ToxAvCall), max_calls);
av->max_calls = max_calls;
unsigned int i;
for (i = 0; i < max_calls; ++i) {
if (create_recursive_mutex(av->calls[i].mutex_control) != 0 ) {
LOGGER_WARNING("Failed to init call(%u) mutex!", i);
msi_kill(av->msi_session);
free(av->calls);
free(av);
return NULL;
}
}
return av;
}
void toxav_kill ( ToxAv *av )
{
uint32_t i;
for (i = 0; i < av->max_calls; i ++) {
if ( av->calls[i].crtps[audio_index] )
rtp_kill(av->calls[i].crtps[audio_index], av->msi_session->messenger_handle);
if ( av->calls[i].crtps[video_index] )
rtp_kill(av->calls[i].crtps[video_index], av->msi_session->messenger_handle);
if ( av->calls[i].cs )
cs_kill(av->calls[i].cs);
pthread_mutex_destroy(av->calls[i].mutex_control);
}
msi_kill(av->msi_session);
free(av->calls);
free(av);
}
uint32_t toxav_do_interval(ToxAv *av)
{
int i = 0;
uint32_t rc = 200 + av->avgdectms; /* Return 200 if no call is active */
for (; i < av->max_calls; i ++) {
pthread_mutex_lock(av->calls[i].mutex_control);
if (av->calls[i].active) {
/* This should work. Video payload will always come in greater intervals */
rc = MIN(av->calls[i].cs->audio_decoder_frame_duration, rc);
}
pthread_mutex_unlock(av->calls[i].mutex_control);
}
return rc < av->avgdectms ? 0 : rc - av->avgdectms;
}
void toxav_do(ToxAv *av)
{
msi_do(av->msi_session);
uint64_t start = current_time_monotonic();
uint32_t i = 0;
for (; i < av->max_calls; i ++) {
pthread_mutex_lock(av->calls[i].mutex_control);
if (av->calls[i].active) {
pthread_mutex_lock(av->calls[i].mutex_do);
pthread_mutex_unlock(av->calls[i].mutex_control);
cs_do(av->calls[i].cs);
pthread_mutex_unlock(av->calls[i].mutex_do);
} else {
pthread_mutex_unlock(av->calls[i].mutex_control);
}
}
uint64_t end = current_time_monotonic();
/* TODO maybe use variable for sizes */
av->dectmsstotal += end - start;
if (++av->dectmsscount == 3) {
av->avgdectms = av->dectmsstotal / 3 + 2 /* NOTE Magic Offset */;
av->dectmsscount = 0;
av->dectmsstotal = 0;
}
}
void toxav_register_callstate_callback ( ToxAv *av, ToxAVCallback cb, ToxAvCallbackID id, void *userdata )
{
msi_register_callback(av->msi_session, (MSICallbackType)cb, (MSICallbackID) id, userdata);
}
void toxav_register_audio_callback(ToxAv *av, ToxAvAudioCallback cb, void *userdata)
{
av->acb.first = cb;
av->acb.second = userdata;
}
void toxav_register_video_callback(ToxAv *av, ToxAvVideoCallback cb, void *userdata)
{
av->vcb.first = cb;
av->vcb.second = userdata;
}
int toxav_call (ToxAv *av,
int32_t *call_index,
int user,
const ToxAvCSettings *csettings,
int ringing_seconds )
{
return msi_invite(av->msi_session, call_index, msicsettings_cast(csettings), ringing_seconds * 1000, user);
}
int toxav_hangup ( ToxAv *av, int32_t call_index )
{
return msi_hangup(av->msi_session, call_index);
}
int toxav_answer ( ToxAv *av, int32_t call_index, const ToxAvCSettings *csettings )
{
return msi_answer(av->msi_session, call_index, msicsettings_cast(csettings));
}
int toxav_reject ( ToxAv *av, int32_t call_index, const char *reason )
{
return msi_reject(av->msi_session, call_index, reason);
}
int toxav_cancel ( ToxAv *av, int32_t call_index, int peer_id, const char *reason )
{
return msi_cancel(av->msi_session, call_index, peer_id, reason);
}
int toxav_change_settings(ToxAv *av, int32_t call_index, const ToxAvCSettings *csettings)
{
return msi_change_csettings(av->msi_session, call_index, msicsettings_cast(csettings));
}
int toxav_stop_call ( ToxAv *av, int32_t call_index )
{
return msi_stopcall(av->msi_session, call_index);
}
int toxav_prepare_transmission ( ToxAv *av, int32_t call_index, int support_video )
{
if ( !av->msi_session || CALL_INVALID_INDEX(call_index, av->msi_session->max_calls) ||
!av->msi_session->calls[call_index] || !av->msi_session->calls[call_index]->csettings_peer) {
LOGGER_ERROR("Error while starting RTP session: invalid call!\n");
return av_ErrorNoCall;
}
ToxAvCall *call = &av->calls[call_index];
pthread_mutex_lock(call->mutex_control);
if (call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_ERROR("Error while starting RTP session: call already active!\n");
return av_ErrorAlreadyInCallWithPeer;
}
if (pthread_mutex_init(call->mutex_encoding_audio, NULL) != 0
|| pthread_mutex_init(call->mutex_encoding_video, NULL) != 0 || pthread_mutex_init(call->mutex_do, NULL) != 0) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_ERROR("Error while starting RTP session: mutex initializing failed!\n");
return av_ErrorUnknown;
}
const ToxAvCSettings *c_peer = toxavcsettings_cast
(&av->msi_session->calls[call_index]->csettings_peer[0]);
const ToxAvCSettings *c_self = toxavcsettings_cast
(&av->msi_session->calls[call_index]->csettings_local);
LOGGER_DEBUG(
"Type: %u(s) %u(p)\n"
"Video bitrate: %u(s) %u(p)\n"
"Video height: %u(s) %u(p)\n"
"Video width: %u(s) %u(p)\n"
"Audio bitrate: %u(s) %u(p)\n"
"Audio framedur: %u(s) %u(p)\n"
"Audio sample rate: %u(s) %u(p)\n"
"Audio channels: %u(s) %u(p)\n",
c_self->call_type, c_peer->call_type,
c_self->video_bitrate, c_peer->video_bitrate,
c_self->max_video_height, c_peer->max_video_height,
c_self->max_video_width, c_peer->max_video_width,
c_self->audio_bitrate, c_peer->audio_bitrate,
c_self->audio_frame_duration, c_peer->audio_frame_duration,
c_self->audio_sample_rate, c_peer->audio_sample_rate,
c_self->audio_channels, c_peer->audio_channels );
if ( !(call->cs = cs_new(c_self, c_peer, jbuf_capacity, support_video)) ) {
LOGGER_ERROR("Error while starting Codec State!\n");
pthread_mutex_unlock(call->mutex_control);
return av_ErrorInitializingCodecs;
}
call->cs->agent = av;
call->cs->call_idx = call_index;
call->cs->acb.first = av->acb.first;
call->cs->acb.second = av->acb.second;
call->cs->vcb.first = av->vcb.first;
call->cs->vcb.second = av->vcb.second;
call->crtps[audio_index] =
rtp_new(msi_TypeAudio, av->messenger, av->msi_session->calls[call_index]->peers[0]);
if ( !call->crtps[audio_index] ) {
LOGGER_ERROR("Error while starting audio RTP session!\n");
goto error;
}
call->crtps[audio_index]->cs = call->cs;
if ( support_video ) {
call->crtps[video_index] =
rtp_new(msi_TypeVideo, av->messenger, av->msi_session->calls[call_index]->peers[0]);
if ( !call->crtps[video_index] ) {
LOGGER_ERROR("Error while starting video RTP session!\n");
goto error;
}
call->crtps[video_index]->cs = call->cs;
}
call->active = 1;
pthread_mutex_unlock(call->mutex_control);
return av_ErrorNone;
error:
rtp_kill(call->crtps[audio_index], av->messenger);
call->crtps[audio_index] = NULL;
rtp_kill(call->crtps[video_index], av->messenger);
call->crtps[video_index] = NULL;
cs_kill(call->cs);
call->cs = NULL;
call->active = 0;
pthread_mutex_destroy(call->mutex_encoding_audio);
pthread_mutex_destroy(call->mutex_encoding_video);
pthread_mutex_destroy(call->mutex_do);
pthread_mutex_unlock(call->mutex_control);
return av_ErrorCreatingRtpSessions;
}
int toxav_kill_transmission ( ToxAv *av, int32_t call_index )
{
if (CALL_INVALID_INDEX(call_index, av->msi_session->max_calls)) {
LOGGER_WARNING("Invalid call index: %d", call_index);
return av_ErrorNoCall;
}
ToxAvCall *call = &av->calls[call_index];
pthread_mutex_lock(call->mutex_control);
if (!call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Action on inactive call: %d", call_index);
return av_ErrorInvalidState;
}
call->active = 0;
pthread_mutex_lock(call->mutex_encoding_audio);
pthread_mutex_unlock(call->mutex_encoding_audio);
pthread_mutex_lock(call->mutex_encoding_video);
pthread_mutex_unlock(call->mutex_encoding_video);
pthread_mutex_lock(call->mutex_do);
pthread_mutex_unlock(call->mutex_do);
rtp_kill(call->crtps[audio_index], av->messenger);
call->crtps[audio_index] = NULL;
rtp_kill(call->crtps[video_index], av->messenger);
call->crtps[video_index] = NULL;
cs_kill(call->cs);
call->cs = NULL;
pthread_mutex_destroy(call->mutex_encoding_audio);
pthread_mutex_destroy(call->mutex_encoding_video);
pthread_mutex_destroy(call->mutex_do);
pthread_mutex_unlock(call->mutex_control);
return av_ErrorNone;
}
static int toxav_send_rtp_payload(ToxAv *av,
ToxAvCall *call,
ToxAvCallType type,
const uint8_t *payload,
unsigned int length)
{
if (call->crtps[type - av_TypeAudio]) {
/* Audio */
if (type == av_TypeAudio)
return rtp_send_msg(call->crtps[audio_index], av->messenger, payload, length);
/* Video */
int parts = cs_split_video_payload(call->cs, payload, length);
if (parts < 0) return parts;
uint16_t part_size;
const uint8_t *iter;
int i;
for (i = 0; i < parts; i++) {
iter = cs_iterate_split_video_frame(call->cs, &part_size);
if (rtp_send_msg(call->crtps[video_index], av->messenger, iter, part_size) < 0)
return av_ErrorSendingPayload;
}
return av_ErrorNone;
} else return av_ErrorNoRtpSession;
}
int toxav_prepare_video_frame ( ToxAv *av, int32_t call_index, uint8_t *dest, int dest_max, vpx_image_t *input)
{
if (CALL_INVALID_INDEX(call_index, av->msi_session->max_calls)) {
LOGGER_WARNING("Invalid call index: %d", call_index);
return av_ErrorNoCall;
}
ToxAvCall *call = &av->calls[call_index];
pthread_mutex_lock(call->mutex_control);
if (!call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Action on inactive call: %d", call_index);
return av_ErrorInvalidState;
}
if (cs_set_sending_video_resolution(call->cs, input->d_w, input->d_h) < 0) {
pthread_mutex_unlock(call->mutex_control);
return av_ErrorSettingVideoResolution;
}
pthread_mutex_lock(call->mutex_encoding_video);
pthread_mutex_unlock(call->mutex_control);
int rc = vpx_codec_encode(call->cs->v_encoder, input, call->cs->frame_counter, 1, 0, MAX_ENCODE_TIME_US);
if ( rc != VPX_CODEC_OK) {
LOGGER_ERROR("Could not encode video frame: %s\n", vpx_codec_err_to_string(rc));
pthread_mutex_unlock(call->mutex_encoding_video);
return av_ErrorEncodingVideo;
}
++call->cs->frame_counter;
vpx_codec_iter_t iter = NULL;
const vpx_codec_cx_pkt_t *pkt;
int copied = 0;
while ( (pkt = vpx_codec_get_cx_data(call->cs->v_encoder, &iter)) ) {
if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) {
if ( copied + pkt->data.frame.sz > dest_max ) {
pthread_mutex_unlock(call->mutex_encoding_video);
return av_ErrorPacketTooLarge;
}
memcpy(dest + copied, pkt->data.frame.buf, pkt->data.frame.sz);
copied += pkt->data.frame.sz;
}
}
pthread_mutex_unlock(call->mutex_encoding_video);
return copied;
}
int toxav_send_video ( ToxAv *av, int32_t call_index, const uint8_t *frame, unsigned int frame_size)
{
if (CALL_INVALID_INDEX(call_index, av->msi_session->max_calls)) {
LOGGER_WARNING("Invalid call index: %d", call_index);
return av_ErrorNoCall;
}
ToxAvCall *call = &av->calls[call_index];
pthread_mutex_lock(call->mutex_control);
if (!call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Action on inactive call: %d", call_index);
return av_ErrorInvalidState;
}
int rc = toxav_send_rtp_payload(av, call, av_TypeVideo, frame, frame_size);
pthread_mutex_unlock(call->mutex_control);
return rc;
}
int toxav_prepare_audio_frame ( ToxAv *av,
int32_t call_index,
uint8_t *dest,
int dest_max,
const int16_t *frame,
int frame_size)
{
if (CALL_INVALID_INDEX(call_index, av->msi_session->max_calls)) {
LOGGER_WARNING("Action on nonexisting call: %d", call_index);
return av_ErrorNoCall;
}
ToxAvCall *call = &av->calls[call_index];
pthread_mutex_lock(call->mutex_control);
if (!call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Action on inactive call: %d", call_index);
return av_ErrorInvalidState;
}
pthread_mutex_lock(call->mutex_encoding_audio);
pthread_mutex_unlock(call->mutex_control);
int32_t rc = opus_encode(call->cs->audio_encoder, frame, frame_size, dest, dest_max);
pthread_mutex_unlock(call->mutex_encoding_audio);
if (rc < 0) {
LOGGER_ERROR("Failed to encode payload: %s\n", opus_strerror(rc));
return av_ErrorEncodingAudio;
}
return rc;
}
int toxav_send_audio ( ToxAv *av, int32_t call_index, const uint8_t *data, unsigned int size)
{
if (CALL_INVALID_INDEX(call_index, av->msi_session->max_calls)) {
LOGGER_WARNING("Action on nonexisting call: %d", call_index);
return av_ErrorNoCall;
}
ToxAvCall *call = &av->calls[call_index];
pthread_mutex_lock(call->mutex_control);
if (!call->active) {
pthread_mutex_unlock(call->mutex_control);
LOGGER_WARNING("Action on inactive call: %d", call_index);
return av_ErrorInvalidState;
}
int rc = toxav_send_rtp_payload(av, call, av_TypeAudio, data, size);
pthread_mutex_unlock(call->mutex_control);
return rc;
}
int toxav_get_peer_csettings ( ToxAv *av, int32_t call_index, int peer, ToxAvCSettings *dest )
{
if ( peer < 0 || CALL_INVALID_INDEX(call_index, av->msi_session->max_calls) ||
!av->msi_session->calls[call_index] || av->msi_session->calls[call_index]->peer_count <= peer )
return av_ErrorNoCall;
*dest = *toxavcsettings_cast(&av->msi_session->calls[call_index]->csettings_peer[peer]);
return av_ErrorNone;
}
int toxav_get_peer_id ( ToxAv *av, int32_t call_index, int peer )
{
if ( peer < 0 || CALL_INVALID_INDEX(call_index, av->msi_session->max_calls) || !av->msi_session->calls[call_index]
|| av->msi_session->calls[call_index]->peer_count <= peer )
return av_ErrorNoCall;
return av->msi_session->calls[call_index]->peers[peer];
}
ToxAvCallState toxav_get_call_state(ToxAv *av, int32_t call_index)
{
if ( CALL_INVALID_INDEX(call_index, av->msi_session->max_calls) || !av->msi_session->calls[call_index] )
return av_CallNonExistent;
return av->msi_session->calls[call_index]->state;
}
int toxav_capability_supported ( ToxAv *av, int32_t call_index, ToxAvCapabilities capability )
{
}
Tox *toxav_get_tox(ToxAv *av)
{
return (Tox *)av->messenger;
}
int toxav_get_active_count(ToxAv *av)
{
if (!av) return -1;
int rc = 0, i = 0;
for (; i < av->max_calls; i++) {
pthread_mutex_lock(av->calls[i].mutex_control);
if (av->calls[i].active) rc++;
pthread_mutex_unlock(av->calls[i].mutex_control);
}
return rc;
}
/* Create a new toxav group.
*
* return group number on success.
* return -1 on failure.
*
* Audio data callback format:
* audio_callback(Tox *tox, int groupnumber, int peernumber, const int16_t *pcm, unsigned int samples, uint8_t channels, unsigned int sample_rate, void *userdata)
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*/
int toxav_add_av_groupchat(Tox *tox, void (*audio_callback)(Messenger *, int, int, const int16_t *, unsigned int,
uint8_t, unsigned int, void *), void *userdata)
{
Messenger *m = tox;
return add_av_groupchat(m->group_chat_object, audio_callback, userdata);
}
/* Join a AV group (you need to have been invited first.)
*
* returns group number on success
* returns -1 on failure.
*
* Audio data callback format (same as the one for toxav_add_av_groupchat()):
* audio_callback(Tox *tox, int groupnumber, int peernumber, const int16_t *pcm, unsigned int samples, uint8_t channels, unsigned int sample_rate, void *userdata)
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*/
int toxav_join_av_groupchat(Tox *tox, int32_t friendnumber, const uint8_t *data, uint16_t length,
void (*audio_callback)(Messenger *, int, int, const int16_t *, unsigned int, uint8_t, unsigned int, void *),
void *userdata)
{
Messenger *m = tox;
return join_av_groupchat(m->group_chat_object, friendnumber, data, length, audio_callback, userdata);
}
/* Send audio to the group chat.
*
* return 0 on success.
* return -1 on failure.
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*
* Valid number of samples are ((sample rate) * (audio length (Valid ones are: 2.5, 5, 10, 20, 40 or 60 ms)) / 1000)
* Valid number of channels are 1 or 2.
* Valid sample rates are 8000, 12000, 16000, 24000, or 48000.
*
* Recommended values are: samples = 960, channels = 1, sample_rate = 48000
*/
int toxav_group_send_audio(Tox *tox, int groupnumber, const int16_t *pcm, unsigned int samples, uint8_t channels,
unsigned int sample_rate)
{
Messenger *m = tox;
return group_send_audio(m->group_chat_object, groupnumber, pcm, samples, channels, sample_rate);
}

329
toxav/toxav_new_1.h Normal file
View File

@ -0,0 +1,329 @@
/** toxav.h
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef __TOXAV
#define __TOXAV
#include <inttypes.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _ToxAv ToxAv;
/* vpx_image_t */
#include <vpx/vpx_image.h>
typedef void ( *ToxAVCallback ) ( void *agent, int32_t call_idx, void *arg );
typedef void ( *ToxAvAudioCallback ) (void *agent, int32_t call_idx, const int16_t *PCM, uint16_t size, void *data);
typedef void ( *ToxAvVideoCallback ) (void *agent, int32_t call_idx, const vpx_image_t *img, void *data);
#ifndef __TOX_DEFINED__
#define __TOX_DEFINED__
typedef struct Tox Tox;
#endif
#define RTP_PAYLOAD_SIZE 65535
/**
* Callbacks ids that handle the call states.
*/
typedef enum {
av_OnInvite, /* Incoming call */
av_OnRinging, /* When peer is ready to accept/reject the call */
av_OnStart, /* Call (RTP transmission) started */
av_OnCancel, /* The side that initiated call canceled invite */
av_OnReject, /* The side that was invited rejected the call */
av_OnEnd, /* Call that was active ended */
av_OnRequestTimeout, /* When the requested action didn't get response in specified time */
av_OnPeerTimeout, /* Peer timed out; stop the call */
av_OnPeerCSChange, /* Peer changing Csettings. Prepare for changed AV */
av_OnSelfCSChange /* Csettings change confirmation. Once triggered peer is ready to recv changed AV */
} ToxAvCallbackID;
/**
* Call type identifier.
*/
typedef enum {
av_TypeAudio = 192,
av_TypeVideo
} ToxAvCallType;
typedef enum {
av_CallNonExistent = -1,
av_CallInviting, /* when sending call invite */
av_CallStarting, /* when getting call invite */
av_CallActive,
av_CallHold,
av_CallHungUp
} ToxAvCallState;
/**
* Error indicators. Values under -20 are reserved for toxcore.
*/
typedef enum {
av_ErrorNone = 0,
av_ErrorUnknown = -1, /* Unknown error */
av_ErrorNoCall = -20, /* Trying to perform call action while not in a call */
av_ErrorInvalidState = -21, /* Trying to perform call action while in invalid state*/
av_ErrorAlreadyInCallWithPeer = -22, /* Trying to call peer when already in a call with peer */
av_ErrorReachedCallLimit = -23, /* Cannot handle more calls */
av_ErrorInitializingCodecs = -30, /* Failed creating CSSession */
av_ErrorSettingVideoResolution = -31, /* Error setting resolution */
av_ErrorSettingVideoBitrate = -32, /* Error setting bitrate */
av_ErrorSplittingVideoPayload = -33, /* Error splitting video payload */
av_ErrorEncodingVideo = -34, /* vpx_codec_encode failed */
av_ErrorEncodingAudio = -35, /* opus_encode failed */
av_ErrorSendingPayload = -40, /* Sending lossy packet failed */
av_ErrorCreatingRtpSessions = -41, /* One of the rtp sessions failed to initialize */
av_ErrorNoRtpSession = -50, /* Trying to perform rtp action on invalid session */
av_ErrorInvalidCodecState = -51, /* Codec state not initialized */
av_ErrorPacketTooLarge = -52, /* Split packet exceeds it's limit */
} ToxAvError;
/**
* Locally supported capabilities.
*/
typedef enum {
av_AudioEncoding = 1 << 0,
av_AudioDecoding = 1 << 1,
av_VideoEncoding = 1 << 2,
av_VideoDecoding = 1 << 3
} ToxAvCapabilities;
/**
* Encoding settings.
*/
typedef struct _ToxAvCSettings {
ToxAvCallType call_type;
uint32_t video_bitrate; /* In kbits/s */
uint16_t max_video_width; /* In px */
uint16_t max_video_height; /* In px */
uint32_t audio_bitrate; /* In bits/s */
uint16_t audio_frame_duration; /* In ms */
uint32_t audio_sample_rate; /* In Hz */
uint32_t audio_channels;
} ToxAvCSettings;
extern const ToxAvCSettings av_DefaultSettings;
/**
* Start new A/V session. There can only be one session at the time.
*/
ToxAv *toxav_new(Tox *messenger, int32_t max_calls);
/**
* Remove A/V session.
*/
void toxav_kill(ToxAv *av);
/**
* Returns the interval in milliseconds when the next toxav_do() should be called.
* If no call is active at the moment returns 200.
*/
uint32_t toxav_do_interval(ToxAv *av);
/**
* Main loop for the session. Best called right after tox_do();
*/
void toxav_do(ToxAv *av);
/**
* Register callback for call state.
*/
void toxav_register_callstate_callback (ToxAv *av, ToxAVCallback cb, ToxAvCallbackID id, void *userdata);
/**
* Register callback for audio data.
*/
void toxav_register_audio_callback (ToxAv *av, ToxAvAudioCallback cb, void *userdata);
/**
* Register callback for video data.
*/
void toxav_register_video_callback (ToxAv *av, ToxAvVideoCallback cb, void *userdata);
/**
* Call user. Use its friend_id.
*/
int toxav_call(ToxAv *av,
int32_t *call_index,
int friend_id,
const ToxAvCSettings *csettings,
int ringing_seconds);
/**
* Hangup active call.
*/
int toxav_hangup(ToxAv *av, int32_t call_index);
/**
* Answer incoming call. Pass the csettings that you will use.
*/
int toxav_answer(ToxAv *av, int32_t call_index, const ToxAvCSettings *csettings );
/**
* Reject incoming call.
*/
int toxav_reject(ToxAv *av, int32_t call_index, const char *reason);
/**
* Cancel outgoing request.
*/
int toxav_cancel(ToxAv *av, int32_t call_index, int peer_id, const char *reason);
/**
* Notify peer that we are changing codec settings.
*/
int toxav_change_settings(ToxAv *av, int32_t call_index, const ToxAvCSettings *csettings);
/**
* Terminate transmission. Note that transmission will be
* terminated without informing remote peer. Usually called when we can't inform peer.
*/
int toxav_stop_call(ToxAv *av, int32_t call_index);
/**
* Allocates transmission data. Must be call before calling toxav_prepare_* and toxav_send_*.
* Also, it must be called when call is started
*/
int toxav_prepare_transmission(ToxAv *av, int32_t call_index, int support_video);
/**
* Clears transmission data. Call this at the end of the transmission.
*/
int toxav_kill_transmission(ToxAv *av, int32_t call_index);
/**
* Encode video frame.
*/
int toxav_prepare_video_frame ( ToxAv *av,
int32_t call_index,
uint8_t *dest,
int dest_max,
vpx_image_t *input);
/**
* Send encoded video packet.
*/
int toxav_send_video ( ToxAv *av, int32_t call_index, const uint8_t *frame, uint32_t frame_size);
/**
* Encode audio frame.
*/
int toxav_prepare_audio_frame ( ToxAv *av,
int32_t call_index,
uint8_t *dest,
int dest_max,
const int16_t *frame,
int frame_size);
/**
* Send encoded audio frame.
*/
int toxav_send_audio ( ToxAv *av, int32_t call_index, const uint8_t *frame, unsigned int size);
/**
* Get codec settings from the peer. These were exchanged during call initialization
* or when peer send us new csettings.
*/
int toxav_get_peer_csettings ( ToxAv *av, int32_t call_index, int peer, ToxAvCSettings *dest );
/**
* Get friend id of peer participating in conversation.
*/
int toxav_get_peer_id ( ToxAv *av, int32_t call_index, int peer );
/**
* Get current call state.
*/
ToxAvCallState toxav_get_call_state ( ToxAv *av, int32_t call_index );
/**
* Is certain capability supported. Used to determine if encoding/decoding is ready.
*/
int toxav_capability_supported ( ToxAv *av, int32_t call_index, ToxAvCapabilities capability );
/**
* Returns tox reference.
*/
Tox *toxav_get_tox (ToxAv *av);
/**
* Returns number of active calls or -1 on error.
*/
int toxav_get_active_count (ToxAv *av);
/* Create a new toxav group.
*
* return group number on success.
* return -1 on failure.
*
* Audio data callback format:
* audio_callback(Tox *tox, int groupnumber, int peernumber, const int16_t *pcm, unsigned int samples, uint8_t channels, unsigned int sample_rate, void *userdata)
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*/
int toxav_add_av_groupchat(Tox *tox, void (*audio_callback)(Tox *, int, int, const int16_t *, unsigned int, uint8_t,
unsigned int, void *), void *userdata);
/* Join a AV group (you need to have been invited first.)
*
* returns group number on success
* returns -1 on failure.
*
* Audio data callback format (same as the one for toxav_add_av_groupchat()):
* audio_callback(Tox *tox, int groupnumber, int peernumber, const int16_t *pcm, unsigned int samples, uint8_t channels, unsigned int sample_rate, void *userdata)
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*/
int toxav_join_av_groupchat(Tox *tox, int32_t friendnumber, const uint8_t *data, uint16_t length,
void (*audio_callback)(Tox *, int, int, const int16_t *, unsigned int, uint8_t, unsigned int, void *), void *userdata);
/* Send audio to the group chat.
*
* return 0 on success.
* return -1 on failure.
*
* Note that total size of pcm in bytes is equal to (samples * channels * sizeof(int16_t)).
*
* Valid number of samples are ((sample rate) * (audio length (Valid ones are: 2.5, 5, 10, 20, 40 or 60 ms)) / 1000)
* Valid number of channels are 1 or 2.
* Valid sample rates are 8000, 12000, 16000, 24000, or 48000.
*
* Recommended values are: samples = 960, channels = 1, sample_rate = 48000
*/
int toxav_group_send_audio(Tox *tox, int groupnumber, const int16_t *pcm, unsigned int samples, uint8_t channels,
unsigned int sample_rate);
#ifdef __cplusplus
}
#endif
#endif /* __TOXAV */