Cast: IPC glue between cast library transport and encoders.

chrome/renderer/media/cast_transport_sender_ipc.h

+// 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 "base/message_loop/message_loop_proxy.h"
+#include "ipc/ipc_channel_proxy.h"
+#include "media/cast/transport/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::transport::CastTransportSender {
+ public:
+  CastTransportSenderIPC(
+      const media::cast::transport::CastTransportConfig& config,
+      const media::cast::transport::CastTransportStatusCallback& status_cb);
+
+  virtual ~CastTransportSenderIPC();
+
+  // media::cast::transport::CastTransportSender implementation.
+  virtual void SetPacketReceiver(
+      const media::cast::transport::PacketReceiverCallback& packet_callback)
+      OVERRIDE;
+  virtual void InsertCodedAudioFrame(
+      const media::cast::transport::EncodedAudioFrame* audio_frame,
+      const base::TimeTicks& recorded_time) OVERRIDE;
+  virtual void InsertCodedVideoFrame(
+      const media::cast::transport::EncodedVideoFrame* video_frame,
+      const base::TimeTicks& capture_time) OVERRIDE;
+  virtual void SendRtcpFromRtpSender(
+      uint32 packet_type_flags,
+      const media::cast::transport::RtcpSenderInfo& sender_info,
+      const media::cast::transport::RtcpDlrrReportBlock& dlrr,
+      const media::cast::transport::RtcpSenderLogMessage& sender_log,
+      uint32 sending_ssrc,
+      const std::string& c_name) OVERRIDE;
+  virtual void ResendPackets(
+      bool is_audio,
+      const media::cast::transport::MissingFramesAndPacketsMap& missing_packets)
+      OVERRIDE;
+  virtual void SubscribeAudioRtpStatsCallback(
+      const media::cast::transport::CastTransportRtpStatistics& callback)
+      OVERRIDE;
+  virtual void SubscribeVideoRtpStatsCallback(
+      const media::cast::transport::CastTransportRtpStatistics& callback)
+      OVERRIDE;
+
+  void OnReceivedPacket(const media::cast::transport::Packet& packet);
+  void OnNotifyStatusChange(
+      media::cast::transport::CastTransportStatus status);
+  void OnRtpStatistics(
+      bool audio,
+      const media::cast::transport::RtcpSenderInfo& sender_info,
+      base::TimeTicks time_sent,
+      uint32 rtp_timestamp);
+
+ private:
+  void Send(IPC::Message* message);
+
+  int32 channel_id_;
+  media::cast::transport::PacketReceiverCallback packet_callback_;
+  media::cast::transport::CastTransportStatusCallback status_callback_;
+  media::cast::transport::CastTransportRtpStatistics audio_rtp_callback_;
+  media::cast::transport::CastTransportRtpStatistics video_rtp_callback_;
+  DISALLOW_COPY_AND_ASSIGN(CastTransportSenderIPC);
+};
+
+#endif  // CHROME_RENDERER_MEDIA_CAST_TRANSPORT_SENDER_IPC_H_