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1 /*
2  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_VOICE_ENGINE_CHANNEL_PROXY_H_
12 #define WEBRTC_VOICE_ENGINE_CHANNEL_PROXY_H_
13 
14 #include "webrtc/base/thread_checker.h"
15 #include "webrtc/voice_engine/channel_manager.h"
16 #include "webrtc/voice_engine/include/voe_rtp_rtcp.h"
17 
18 #include <string>
19 #include <vector>
20 
21 namespace webrtc {
22 
23 class AudioSinkInterface;
24 class PacketRouter;
25 class RtpPacketSender;
26 class TransportFeedbackObserver;
27 
28 namespace voe {
29 
30 class Channel;
31 
32 // This class provides the "view" of a voe::Channel that we need to implement
33 // webrtc::AudioSendStream and webrtc::AudioReceiveStream. It serves two
34 // purposes:
35 //  1. Allow mocking just the interfaces used, instead of the entire
36 //     voe::Channel class.
37 //  2. Provide a refined interface for the stream classes, including assumptions
38 //     on return values and input adaptation.
39 class ChannelProxy {
40  public:
41   ChannelProxy();
42   explicit ChannelProxy(const ChannelOwner& channel_owner);
43   virtual ~ChannelProxy();
44 
45   virtual void SetRTCPStatus(bool enable);
46   virtual void SetLocalSSRC(uint32_t ssrc);
47   virtual void SetRTCP_CNAME(const std::string& c_name);
48   virtual void SetSendAbsoluteSenderTimeStatus(bool enable, int id);
49   virtual void SetSendAudioLevelIndicationStatus(bool enable, int id);
50   virtual void EnableSendTransportSequenceNumber(int id);
51   virtual void SetReceiveAbsoluteSenderTimeStatus(bool enable, int id);
52   virtual void SetReceiveAudioLevelIndicationStatus(bool enable, int id);
53   virtual void SetCongestionControlObjects(
54       RtpPacketSender* rtp_packet_sender,
55       TransportFeedbackObserver* transport_feedback_observer,
56       PacketRouter* packet_router);
57 
58   virtual CallStatistics GetRTCPStatistics() const;
59   virtual std::vector<ReportBlock> GetRemoteRTCPReportBlocks() const;
60   virtual NetworkStatistics GetNetworkStatistics() const;
61   virtual AudioDecodingCallStats GetDecodingCallStatistics() const;
62   virtual int32_t GetSpeechOutputLevelFullRange() const;
63   virtual uint32_t GetDelayEstimate() const;
64 
65   virtual bool SetSendTelephoneEventPayloadType(int payload_type);
66   virtual bool SendTelephoneEventOutband(uint8_t event, uint32_t duration_ms);
67 
68   virtual void SetSink(rtc::scoped_ptr<AudioSinkInterface> sink);
69 
70  private:
71   Channel* channel() const;
72 
73   rtc::ThreadChecker thread_checker_;
74   ChannelOwner channel_owner_;
75 };
76 }  // namespace voe
77 }  // namespace webrtc
78 
79 #endif  // WEBRTC_VOICE_ENGINE_CHANNEL_PROXY_H_
80