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Side by Side Diff: media/cast/receiver/frame_receiver.h

Issue 388663003: Cast: Reshuffle files under media/cast (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: missing includes Created 6 years, 5 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef MEDIA_CAST_RECEIVER_FRAME_RECEIVER_H_ 5 #ifndef MEDIA_CAST_RECEIVER_FRAME_RECEIVER_H_
6 #define MEDIA_CAST_RECEIVER_FRAME_RECEIVER_H_ 6 #define MEDIA_CAST_RECEIVER_FRAME_RECEIVER_H_
7 7
8 #include "base/memory/ref_counted.h" 8 #include "base/memory/ref_counted.h"
9 #include "base/memory/scoped_ptr.h" 9 #include "base/memory/scoped_ptr.h"
10 #include "base/memory/weak_ptr.h" 10 #include "base/memory/weak_ptr.h"
11 #include "base/time/time.h" 11 #include "base/time/time.h"
12 #include "media/cast/base/clock_drift_smoother.h"
13 #include "media/cast/cast_config.h" 12 #include "media/cast/cast_config.h"
14 #include "media/cast/cast_receiver.h" 13 #include "media/cast/cast_receiver.h"
15 #include "media/cast/framer/framer.h" 14 #include "media/cast/common/clock_drift_smoother.h"
15 #include "media/cast/common/transport_encryption_handler.h"
16 #include "media/cast/logging/logging_defines.h" 16 #include "media/cast/logging/logging_defines.h"
17 #include "media/cast/rtcp/receiver_rtcp_event_subscriber.h" 17 #include "media/cast/net/rtcp/receiver_rtcp_event_subscriber.h"
18 #include "media/cast/rtcp/rtcp.h" 18 #include "media/cast/net/rtcp/rtcp.h"
19 #include "media/cast/rtp_receiver/receiver_stats.h" 19 #include "media/cast/net/rtp/framer.h"
20 #include "media/cast/rtp_receiver/rtp_parser/rtp_parser.h" 20 #include "media/cast/net/rtp/receiver_stats.h"
21 #include "media/cast/rtp_receiver/rtp_receiver_defines.h" 21 #include "media/cast/net/rtp/rtp_parser.h"
22 #include "media/cast/transport/utility/transport_encryption_handler.h" 22 #include "media/cast/net/rtp/rtp_receiver_defines.h"
23 23
24 namespace media { 24 namespace media {
25 namespace cast { 25 namespace cast {
26 26
27 class CastEnvironment; 27 class CastEnvironment;
28 28
29 // FrameReceiver receives packets out-of-order while clients make requests for 29 // FrameReceiver receives packets out-of-order while clients make requests for
30 // complete frames in-order. (A frame consists of one or more packets.) 30 // complete frames in-order. (A frame consists of one or more packets.)
31 // 31 //
32 // FrameReceiver also includes logic for computing the playout time for each 32 // FrameReceiver also includes logic for computing the playout time for each
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43 // (perhaps to just one or two). 43 // (perhaps to just one or two).
44 // 44 //
45 // This class is not thread safe. Should only be called from the Main cast 45 // This class is not thread safe. Should only be called from the Main cast
46 // thread. 46 // thread.
47 class FrameReceiver : public RtpPayloadFeedback, 47 class FrameReceiver : public RtpPayloadFeedback,
48 public base::SupportsWeakPtr<FrameReceiver> { 48 public base::SupportsWeakPtr<FrameReceiver> {
49 public: 49 public:
50 FrameReceiver(const scoped_refptr<CastEnvironment>& cast_environment, 50 FrameReceiver(const scoped_refptr<CastEnvironment>& cast_environment,
51 const FrameReceiverConfig& config, 51 const FrameReceiverConfig& config,
52 EventMediaType event_media_type, 52 EventMediaType event_media_type,
53 transport::PacedPacketSender* const packet_sender); 53 PacedPacketSender* const packet_sender);
54 54
55 virtual ~FrameReceiver(); 55 virtual ~FrameReceiver();
56 56
57 // Request an encoded frame. 57 // Request an encoded frame.
58 // 58 //
59 // The given |callback| is guaranteed to be run at some point in the future, 59 // The given |callback| is guaranteed to be run at some point in the future,
60 // except for those requests still enqueued at destruction time. 60 // except for those requests still enqueued at destruction time.
61 void RequestEncodedFrame(const ReceiveEncodedFrameCallback& callback); 61 void RequestEncodedFrame(const ReceiveEncodedFrameCallback& callback);
62 62
63 // Called to deliver another packet, possibly a duplicate, and possibly 63 // Called to deliver another packet, possibly a duplicate, and possibly
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145 145
146 // Assembles packets into frames, providing this receiver with complete, 146 // Assembles packets into frames, providing this receiver with complete,
147 // decodable EncodedFrames. 147 // decodable EncodedFrames.
148 Framer framer_; 148 Framer framer_;
149 149
150 // Manages sending/receiving of RTCP packets, including sender/receiver 150 // Manages sending/receiving of RTCP packets, including sender/receiver
151 // reports. 151 // reports.
152 Rtcp rtcp_; 152 Rtcp rtcp_;
153 153
154 // Decrypts encrypted frames. 154 // Decrypts encrypted frames.
155 transport::TransportEncryptionHandler decryptor_; 155 TransportEncryptionHandler decryptor_;
156 156
157 // Outstanding callbacks to run to deliver on client requests for frames. 157 // Outstanding callbacks to run to deliver on client requests for frames.
158 std::list<ReceiveEncodedFrameCallback> frame_request_queue_; 158 std::list<ReceiveEncodedFrameCallback> frame_request_queue_;
159 159
160 // True while there's an outstanding task to re-invoke 160 // True while there's an outstanding task to re-invoke
161 // EmitAvailableEncodedFrames(). 161 // EmitAvailableEncodedFrames().
162 bool is_waiting_for_consecutive_frame_; 162 bool is_waiting_for_consecutive_frame_;
163 163
164 // This mapping allows us to log FRAME_ACK_SENT as a frame event. In addition 164 // This mapping allows us to log FRAME_ACK_SENT as a frame event. In addition
165 // it allows the event to be transmitted via RTCP. 165 // it allows the event to be transmitted via RTCP.
166 RtpTimestamp frame_id_to_rtp_timestamp_[256]; 166 RtpTimestamp frame_id_to_rtp_timestamp_[256];
167 167
168 // Lip-sync values used to compute the playout time of each frame from its RTP 168 // Lip-sync values used to compute the playout time of each frame from its RTP
169 // timestamp. These are updated each time the first packet of a frame is 169 // timestamp. These are updated each time the first packet of a frame is
170 // received. 170 // received.
171 RtpTimestamp lip_sync_rtp_timestamp_; 171 RtpTimestamp lip_sync_rtp_timestamp_;
172 base::TimeTicks lip_sync_reference_time_; 172 base::TimeTicks lip_sync_reference_time_;
173 ClockDriftSmoother lip_sync_drift_; 173 ClockDriftSmoother lip_sync_drift_;
174 174
175 // NOTE: Weak pointers must be invalidated before all other member variables. 175 // NOTE: Weak pointers must be invalidated before all other member variables.
176 base::WeakPtrFactory<FrameReceiver> weak_factory_; 176 base::WeakPtrFactory<FrameReceiver> weak_factory_;
177 177
178 DISALLOW_COPY_AND_ASSIGN(FrameReceiver); 178 DISALLOW_COPY_AND_ASSIGN(FrameReceiver);
179 }; 179 };
180 180
181 } // namespace cast 181 } // namespace cast
182 } // namespace media 182 } // namespace media
183 183
184 #endif // MEDIA_CAST_RECEIVER_FRAME_RECEIVER_H_ 184 #endif // MEDIA_CAST_RECEIVER_FRAME_RECEIVER_H_
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