Upstream version 5.34.104.0
[platform/framework/web/crosswalk.git] / src / media / cast / transport / cast_transport_sender.h
1 // Copyright 2013 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 // This is the main interface for the cast transport sender. The cast sender
6 // handles the cast pipeline from encoded frames (both audio and video), to
7 // encryption, packetization and transport.
8 // All configurations are done at creation.
9
10 // Construction of the Cast Sender and the Cast Transport Sender should be done
11 // in the following order:
12 // 1. Create CastTransportSender.
13 // 2. Create CastSender (accepts CastTransportSender as an input).
14 // 3. Call CastTransportSender::SetPacketReceiver to ensure that the packets
15 //    received by the CastTransportSender will be sent to the CastSender.
16
17 // Destruction: The CastTransportSender is assumed to be valid as long as the
18 // CastSender is alive. Therefore the CastSender should be destructed before the
19 // CastTransportSender.
20 // This also works when the CastSender acts as a receiver for the RTCP packets
21 // due to the weak pointers in the ReceivedPacket method in cast_sender_impl.cc.
22
23 #ifndef MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_SENDER_H_
24 #define MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_SENDER_H_
25
26 #include "base/basictypes.h"
27 #include "base/callback.h"
28 #include "base/single_thread_task_runner.h"
29 #include "base/threading/non_thread_safe.h"
30 #include "base/time/tick_clock.h"
31 #include "media/cast/transport/cast_transport_config.h"
32 #include "media/cast/transport/cast_transport_defines.h"
33
34 namespace media {
35 namespace cast {
36 namespace transport {
37
38 typedef base::Callback<void(CastTransportStatus status)>
39     CastTransportStatusCallback;
40
41 typedef base::Callback<void(const RtcpSenderInfo& sender_info,
42                             base::TimeTicks time_sent,
43                             uint32 rtp_timestamp)> CastTransportRtpStatistics;
44
45 // The application should only trigger this class from the transport thread.
46 class CastTransportSender : public base::NonThreadSafe {
47  public:
48   static CastTransportSender* CreateCastTransportSender(
49       base::TickClock* clock,
50       const CastTransportConfig& config,
51       const CastTransportStatusCallback& status_callback,
52       const scoped_refptr<base::SingleThreadTaskRunner>& transport_task_runner);
53
54   virtual ~CastTransportSender() {}
55
56   // Sets the Cast packet receiver. Should be called after creation on the
57   // Cast sender. Packets won't be received until this function is called.
58   virtual void SetPacketReceiver(
59       const PacketReceiverCallback& packet_receiver) = 0;
60
61   // The following two functions handle the encoded media frames (audio and
62   // video) to be processed.
63   // Frames will be encrypted, packetized and transmitted to the network.
64   virtual void InsertCodedAudioFrame(const EncodedAudioFrame* audio_frame,
65                                      const base::TimeTicks& recorded_time) = 0;
66
67   virtual void InsertCodedVideoFrame(const EncodedVideoFrame* video_frame,
68                                      const base::TimeTicks& capture_time) = 0;
69
70   // Builds an RTCP packet and sends it to the network.
71   virtual void SendRtcpFromRtpSender(uint32 packet_type_flags,
72                                      const RtcpSenderInfo& sender_info,
73                                      const RtcpDlrrReportBlock& dlrr,
74                                      const RtcpSenderLogMessage& sender_log,
75                                      uint32 sending_ssrc,
76                                      const std::string& c_name) = 0;
77
78   // Retransmission request.
79   virtual void ResendPackets(
80       bool is_audio,
81       const MissingFramesAndPacketsMap& missing_packets) = 0;
82
83   // Audio/Video RTP statistics.
84   // RTP statistics will be returned on a regular interval on the designated
85   // callback.
86   virtual void SubscribeAudioRtpStatsCallback(
87       const CastTransportRtpStatistics& callback) = 0;
88
89   virtual void SubscribeVideoRtpStatsCallback(
90       const CastTransportRtpStatistics& callback) = 0;
91 };
92
93 }  // namespace transport
94 }  // namespace cast
95 }  // namespace media
96
97 #endif  // MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_SENDER_H_