[feat] introduce fraction lost into congestion control module

src/channel/meida_channel/audio_channel_send.h

@@ -0,0 +1,43 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2025-01-03
+ * Copyright (c) 2025 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _AUDIO_CHANNEL_SEND_H_
+#define _AUDIO_CHANNEL_SEND_H_
+
+#include "ice_agent.h"
+#include "rtp_audio_sender.h"
+#include "rtp_packetizer.h"
+
+class AudioChannelSend {
+ public:
+  AudioChannelSend();
+  AudioChannelSend(std::shared_ptr<IceAgent> ice_agent,
+                   std::shared_ptr<IOStatistics> ice_io_statistics);
+  ~AudioChannelSend();
+
+ public:
+  void Initialize(rtp::PAYLOAD_TYPE payload_type);
+  void Destroy();
+
+  uint32_t GetSsrc() {
+    if (rtp_audio_sender_) {
+      return rtp_audio_sender_->GetSsrc();
+    }
+    return 0;
+  }
+
+  int SendAudio(char* data, size_t size);
+
+  void OnReceiverReport(const ReceiverReport& receiver_report) {}
+
+ private:
+  std::shared_ptr<IceAgent> ice_agent_ = nullptr;
+  std::shared_ptr<IOStatistics> ice_io_statistics_ = nullptr;
+  std::unique_ptr<RtpPacketizer> rtp_packetizer_ = nullptr;
+  std::unique_ptr<RtpAudioSender> rtp_audio_sender_ = nullptr;
+};
+
+#endif