chrome/renderer/media/cast_ipc_dispatcher.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_RENDERER_MEDIA_CAST_IPC_DISPATCHER_H_
   6 #define CHROME_RENDERER_MEDIA_CAST_IPC_DISPATCHER_H_
   7
   8 #include "base/callback.h"
   9 #include "base/id_map.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "ipc/ipc_channel_proxy.h"
  12 #include "ipc/message_filter.h"
  13 #include "media/cast/cast_sender.h"
  14 #include "media/cast/logging/logging_defines.h"
  15 #include "media/cast/net/cast_transport_sender.h"
  16
  17 class CastTransportSenderIPC;
  18
  19 // This dispatcher listens to incoming IPC messages and sends
  20 // the call to the correct CastTransportSenderIPC instance.
  21 class CastIPCDispatcher : public IPC::MessageFilter {
  22  public:
  23   explicit CastIPCDispatcher(
  24       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
  25
  26   static CastIPCDispatcher* Get();
  27   void Send(IPC::Message* message);
  28   int32 AddSender(CastTransportSenderIPC* sender);
  29   void RemoveSender(int32 channel_id);
  30
  31   // IPC::MessageFilter implementation
  32   bool OnMessageReceived(const IPC::Message& message) override;
  33   void OnFilterAdded(IPC::Sender* sender) override;
  34   void OnFilterRemoved() override;
  35   void OnChannelClosing() override;
  36
  37  protected:
  38   ~CastIPCDispatcher() override;
  39
  40  private:
  41   void OnNotifyStatusChange(
  42       int32 channel_id,
  43       media::cast::CastTransportStatus status);
  44   void OnRtpStatistics(
  45       int32 channel_id,
  46       bool audio,
  47       const media::cast::RtcpSenderInfo& sender_info,
  48       base::TimeTicks time_sent,
  49       uint32 rtp_timestamp);
  50   void OnRawEvents(int32 channel_id,
  51                    const std::vector<media::cast::PacketEvent>& packet_events,
  52                    const std::vector<media::cast::FrameEvent>& frame_events);
  53   void OnRtt(int32 channel_id, uint32 ssrc, base::TimeDelta rtt);
  54   void OnRtcpCastMessage(int32 channel_id,
  55                          uint32 ssrc,
  56                          const media::cast::RtcpCastMessage& cast_message);
  57   void OnReceivedPacket(int32 channel_id, const media::cast::Packet& packet);
  58
  59   static CastIPCDispatcher* global_instance_;
  60
  61   // For IPC Send(); must only be accesed on |io_message_loop_|.
  62   IPC::Sender* sender_;
  63
  64   // Task runner on which IPC calls are driven.
  65   const scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
  66
  67   // A map of stream ids to delegates; must only be accessed on
  68   // |io_message_loop_|.
  69   IDMap<CastTransportSenderIPC> id_map_;
  70   DISALLOW_COPY_AND_ASSIGN(CastIPCDispatcher);
  71 };
  72
  73 #endif  // CHROME_RENDERER_MEDIA_CAST_IPC_DISPATCHER_H_