audio_sender: add setPackerLoss method

Add setPacketLoss method which enable setting a new packet loss
estimation.
This method is based on the model of setBitrate in video_sender.

Issue: #5157
Change-Id: Ib757ce9c241f0b02b8a9a899b3d5a22e898203b3

src/media/audio/audio_sender.cpp

@@ -122,4 +122,15 @@ AudioSender::getLastSeqValue()
     return audioEncoder_->getLastSeqValue();
 }
 
+int
+AudioSender::setPacketLoss(uint64_t pl)
+{
+    // The encoder may be destroy during a bitrate change
+    // when a codec parameter like auto quality change
+    if (!audioEncoder_)
+        return -1; // NOK
+
+    return audioEncoder_->setPacketLoss(pl);
+}
+
 } // namespace jami

src/media/audio/audio_sender.h

@@ -48,6 +48,7 @@ public:
 
     void setMuted(bool isMuted);
     uint16_t getLastSeqValue();
+    int setPacketLoss(uint64_t pl);
 
     void update(Observable<std::shared_ptr<jami::MediaFrame>>*,
                 const std::shared_ptr<jami::MediaFrame>&) override;