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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" |
| 14 #include "media/cast/common/clock_drift_smoother.h" |
| 15 #include "media/cast/common/transport_encryption_handler.h" |
| 15 #include "media/cast/framer/framer.h" | 16 #include "media/cast/framer/framer.h" |
| 16 #include "media/cast/logging/logging_defines.h" | 17 #include "media/cast/logging/logging_defines.h" |
| 17 #include "media/cast/rtcp/receiver_rtcp_event_subscriber.h" | 18 #include "media/cast/rtcp/receiver_rtcp_event_subscriber.h" |
| 18 #include "media/cast/rtcp/rtcp.h" | 19 #include "media/cast/rtcp/rtcp.h" |
| 19 #include "media/cast/rtp_receiver/receiver_stats.h" | 20 #include "media/cast/rtp_receiver/receiver_stats.h" |
| 20 #include "media/cast/rtp_receiver/rtp_parser/rtp_parser.h" | 21 #include "media/cast/rtp_receiver/rtp_parser/rtp_parser.h" |
| 21 #include "media/cast/rtp_receiver/rtp_receiver_defines.h" | 22 #include "media/cast/rtp_receiver/rtp_receiver_defines.h" |
| 22 #include "media/cast/transport/utility/transport_encryption_handler.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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| 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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