text: // Copyright 2014 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_
  #define CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_
  
  #include <map>
  
  #include "base/message_loop/message_loop_proxy.h"
  #include "ipc/ipc_channel_proxy.h"
  #include "media/cast/logging/logging_defines.h"
  #include "media/cast/net/cast_transport_sender.h"
  
  // This implementation of the CastTransportSender interface
  // communicates with the browser process over IPC and relays
  // all calls to/from the transport sender to the browser process.
  // The primary reason for this arrangement is to give the
  // renderer less direct control over the UDP sockets.
  class CastTransportSenderIPC
      : public media::cast::CastTransportSender {
   public:
    CastTransportSenderIPC(
        const net::IPEndPoint& remote_end_point,
        const media::cast::CastTransportStatusCallback& status_cb,
        const media::cast::BulkRawEventsCallback& raw_events_cb);
  
    virtual ~CastTransportSenderIPC();
  
    // media::cast::CastTransportSender implementation.
    virtual void InitializeAudio(
        const media::cast::CastTransportRtpConfig& config,
        const media::cast::RtcpCastMessageCallback& cast_message_cb,
        const media::cast::RtcpRttCallback& rtt_cb) OVERRIDE;
    virtual void InitializeVideo(
        const media::cast::CastTransportRtpConfig& config,
        const media::cast::RtcpCastMessageCallback& cast_message_cb,
        const media::cast::RtcpRttCallback& rtt_cb) OVERRIDE;
    virtual void InsertCodedAudioFrame(
        const media::cast::EncodedFrame& audio_frame) OVERRIDE;
    virtual void InsertCodedVideoFrame(
        const media::cast::EncodedFrame& video_frame) OVERRIDE;
    virtual void SendSenderReport(
        uint32 ssrc,
        base::TimeTicks current_time,
        uint32 current_time_as_rtp_timestamp) OVERRIDE;
    virtual void CancelSendingFrames(
        uint32 ssrc,
        const std::vector<uint32>& frame_ids) OVERRIDE;
    virtual void ResendFrameForKickstart(uint32 ssrc, uint32 frame_id) OVERRIDE;
  
    void OnNotifyStatusChange(
        media::cast::CastTransportStatus status);
    void OnRawEvents(const std::vector<media::cast::PacketEvent>& packet_events,
                     const std::vector<media::cast::FrameEvent>& frame_events);
    void OnRtt(uint32 ssrc, const media::cast::RtcpRttReport& rtt_report);
    void OnRtcpCastMessage(uint32 ssrc,
                           const media::cast::RtcpCastMessage& cast_message);
  
   private:
    struct ClientCallbacks {
      ClientCallbacks();
      ~ClientCallbacks();
  
      media::cast::RtcpCastMessageCallback cast_message_cb;
      media::cast::RtcpRttCallback rtt_cb;
    };
  
    void Send(IPC::Message* message);
  
    int32 channel_id_;
    media::cast::PacketReceiverCallback packet_callback_;
    media::cast::CastTransportStatusCallback status_callback_;
    media::cast::BulkRawEventsCallback raw_events_callback_;
    typedef std::map<uint32, ClientCallbacks> ClientMap;
    ClientMap clients_;
  
    DISALLOW_COPY_AND_ASSIGN(CastTransportSenderIPC);
  };
  
  #endif  // CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_
  