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/** audio.h
*
* Copyright (C) 2013-2015 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 AUDIO_H
#define AUDIO_H
#include <opus.h>
#include <pthread.h>
#include "toxav.h"
#include "../toxcore/util.h"
struct RTPMessage_s;
/*
* Base Audio Codec session type.
*/
typedef struct ACSession_s {
/* encoding */
OpusEncoder *encoder;
int32_t last_encoding_sampling_rate;
int32_t last_encoding_channel_count;
int32_t last_encoding_bit_rate;
/* Testing encoder for dynamic bit rate streaming */
OpusEncoder *test_encoder;
int32_t last_test_encoding_sampling_rate;
int32_t last_test_encoding_channel_count;
int32_t last_test_encoding_bit_rate;
/* decoding */
OpusDecoder *decoder;
int32_t last_packet_channel_count;
int32_t last_packet_sampling_rate;
int32_t last_packet_frame_duration;
int32_t last_decoding_sampling_rate;
int32_t last_decoding_channel_count;
uint64_t last_decoder_reconfiguration;
void *j_buf;
pthread_mutex_t queue_mutex[1];
ToxAV* av;
uint32_t friend_number;
PAIR(toxav_audio_receive_frame_cb *, void *) acb; /* Audio frame receive callback */
} ACSession;
/*
* Create new Audio Codec session.
*/
ACSession* ac_new(ToxAV* av, uint32_t friend_number, toxav_audio_receive_frame_cb *cb, void *cb_data);
/*
* Kill the Audio Codec session.
*/
void ac_kill(ACSession* ac);
/*
* Do periodic work. Work is consisted out of decoding only.
*/
void ac_do(ACSession* ac);
/*
* Queue new rtp message.
*/
int ac_queue_message(void *acp, struct RTPMessage_s *msg);
/*
* Set new values to the encoders.
*/
int ac_reconfigure_encoder(ACSession* ac, int32_t bit_rate, int32_t sampling_rate, uint8_t channels);
int ac_reconfigure_test_encoder(ACSession* ac, int32_t bit_rate, int32_t sampling_rate, uint8_t channels);
#endif /* AUDIO_H */
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