Line data    Source code

       1             : /*
       2             :  *  Copyright (C) 2004-2024 Savoir-faire Linux Inc.
       3             :  *
       4             :  *  Author: Tristan Matthews <tristan.matthews@savoirfairelinux.com>
       5             :  *  Author: Philippe Gorley <philippe.gorley@savoirfairelinux.com>
       6             :  *
       7             :  *  This program is free software; you can redistribute it and/or modify
       8             :  *  it under the terms of the GNU General Public License as published by
       9             :  *  the Free Software Foundation; either version 3 of the License, or
      10             :  *  (at your option) any later version.
      11             :  *
      12             :  *  This program is distributed in the hope that it will be useful,
      13             :  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15             :  *  GNU General Public License for more details.
      16             :  *
      17             :  *  You should have received a copy of the GNU General Public License
      18             :  *  along with this program; if not, write to the Free Software
      19             :  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
      20             :  */
      21             : 
      22             : #include "audio_sender.h"
      23             : #include "client/videomanager.h"
      24             : #include "libav_deps.h"
      25             : #include "logger.h"
      26             : #include "media_encoder.h"
      27             : #include "media_io_handle.h"
      28             : #include "media_stream.h"
      29             : #include "resampler.h"
      30             : 
      31             : #include <memory>
      32             : 
      33             : namespace jami {
      34             : 
      35         187 : AudioSender::AudioSender(const std::string& dest,
      36             :                          const MediaDescription& args,
      37             :                          SocketPair& socketPair,
      38             :                          const uint16_t seqVal,
      39         187 :                          const uint16_t mtu)
      40         187 :     : dest_(dest)
      41         187 :     , args_(args)
      42         187 :     , seqVal_(seqVal)
      43         374 :     , mtu_(mtu)
      44             : {
      45         187 :     setup(socketPair);
      46         187 : }
      47             : 
      48         374 : AudioSender::~AudioSender()
      49             : {
      50         187 :     audioEncoder_.reset();
      51         187 :     muxContext_.reset();
      52         374 : }
      53             : 
      54             : bool
      55         187 : AudioSender::setup(SocketPair& socketPair)
      56             : {
      57         187 :     audioEncoder_.reset(new MediaEncoder);
      58         187 :     muxContext_.reset(socketPair.createIOContext(mtu_));
      59             : 
      60             :     try {
      61             :         /* Encoder setup */
      62         187 :         JAMI_DBG("audioEncoder_->openOutput %s", dest_.c_str());
      63         187 :         audioEncoder_->openOutput(dest_, "rtp");
      64         187 :         audioEncoder_->setOptions(args_);
      65         187 :         auto codec = std::static_pointer_cast<SystemAudioCodecInfo>(args_.codec);
      66         374 :         auto ms = MediaStream("audio sender", codec->audioformat);
      67         187 :         audioEncoder_->setOptions(ms);
      68         187 :         audioEncoder_->addStream(*args_.codec);
      69         187 :         audioEncoder_->setInitSeqVal(seqVal_);
      70         187 :         audioEncoder_->setIOContext(muxContext_->getContext());
      71         187 :     } catch (const MediaEncoderException& e) {
      72           0 :         JAMI_ERR("%s", e.what());
      73           0 :         return false;
      74           0 :     }
      75             : #ifdef DEBUG_SDP
      76             :     audioEncoder_->print_sdp();
      77             : #endif
      78             : 
      79         187 :     return true;
      80             : }
      81             : 
      82             : void
      83           0 : AudioSender::update(Observable<std::shared_ptr<jami::MediaFrame>>* /*obs*/,
      84             :                     const std::shared_ptr<jami::MediaFrame>& framePtr)
      85             : {
      86           0 :     auto frame = framePtr->pointer();
      87           0 :     frame->pts = sent_samples;
      88           0 :     sent_samples += frame->nb_samples;
      89             : 
      90             :     // check for change in voice activity, if so, call callback
      91             :     // downcast MediaFrame to AudioFrame
      92           0 :     bool hasVoice = std::dynamic_pointer_cast<AudioFrame>(framePtr)->has_voice;
      93           0 :     if (hasVoice != voice_) {
      94           0 :         voice_ = hasVoice;
      95           0 :         if (voiceCallback_) {
      96           0 :             voiceCallback_(voice_);
      97             :         } else {
      98           0 :             JAMI_ERR("AudioSender no voice callback!");
      99             :         }
     100             :     }
     101             : 
     102           0 :     if (audioEncoder_->encodeAudio(*std::static_pointer_cast<AudioFrame>(framePtr)) < 0)
     103           0 :         JAMI_ERR("encoding failed");
     104           0 : }
     105             : 
     106             : void
     107         206 : AudioSender::setVoiceCallback(std::function<void(bool)> cb)
     108             : {
     109         206 :     if (cb) {
     110         206 :         voiceCallback_ = std::move(cb);
     111             :     } else {
     112           0 :         JAMI_ERR("AudioSender trying to set invalid voice callback");
     113             :     }
     114         206 : }
     115             : 
     116             : uint16_t
     117           0 : AudioSender::getLastSeqValue()
     118             : {
     119           0 :     return audioEncoder_->getLastSeqValue();
     120             : }
     121             : 
     122             : int
     123           0 : AudioSender::setPacketLoss(uint64_t pl)
     124             : {
     125             :     // The encoder may be destroy during a bitrate change
     126             :     // when a codec parameter like auto quality change
     127           0 :     if (!audioEncoder_)
     128           0 :         return -1; // NOK
     129             : 
     130           0 :     return audioEncoder_->setPacketLoss(pl);
     131             : }
     132             : 
     133             : } // namespace jami