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1 /* | 1 /* |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
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35 public: | 35 public: |
36 class PacketSender { | 36 class PacketSender { |
37 public: | 37 public: |
38 // Note: packets sent as a result of a callback should not pass by this | 38 // Note: packets sent as a result of a callback should not pass by this |
39 // module again. | 39 // module again. |
40 // Called when it's time to send a queued packet. | 40 // Called when it's time to send a queued packet. |
41 // Returns false if packet cannot be sent. | 41 // Returns false if packet cannot be sent. |
42 virtual bool TimeToSendPacket(uint32_t ssrc, | 42 virtual bool TimeToSendPacket(uint32_t ssrc, |
43 uint16_t sequence_number, | 43 uint16_t sequence_number, |
44 int64_t capture_time_ms, | 44 int64_t capture_time_ms, |
45 bool retransmission) = 0; | 45 bool retransmission, |
| 46 int probe_cluster_id) = 0; |
46 // Called when it's a good time to send a padding data. | 47 // Called when it's a good time to send a padding data. |
47 // Returns the number of bytes sent. | 48 // Returns the number of bytes sent. |
48 virtual size_t TimeToSendPadding(size_t bytes) = 0; | 49 virtual size_t TimeToSendPadding(size_t bytes) = 0; |
49 | 50 |
50 protected: | 51 protected: |
51 virtual ~PacketSender() {} | 52 virtual ~PacketSender() {} |
52 }; | 53 }; |
53 | 54 |
54 // Expected max pacer delay in ms. If ExpectedQueueTimeMs() is higher than | 55 // Expected max pacer delay in ms. If ExpectedQueueTimeMs() is higher than |
55 // this value, the packet producers should wait (eg drop frames rather than | 56 // this value, the packet producers should wait (eg drop frames rather than |
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123 int64_t TimeUntilNextProcess() override; | 124 int64_t TimeUntilNextProcess() override; |
124 | 125 |
125 // Process any pending packets in the queue(s). | 126 // Process any pending packets in the queue(s). |
126 void Process() override; | 127 void Process() override; |
127 | 128 |
128 private: | 129 private: |
129 // Updates the number of bytes that can be sent for the next time interval. | 130 // Updates the number of bytes that can be sent for the next time interval. |
130 void UpdateBytesPerInterval(int64_t delta_time_in_ms) | 131 void UpdateBytesPerInterval(int64_t delta_time_in_ms) |
131 EXCLUSIVE_LOCKS_REQUIRED(critsect_); | 132 EXCLUSIVE_LOCKS_REQUIRED(critsect_); |
132 | 133 |
133 bool SendPacket(const paced_sender::Packet& packet) | 134 bool SendPacket(const paced_sender::Packet& packet, int probe_cluster_id) |
134 EXCLUSIVE_LOCKS_REQUIRED(critsect_); | 135 EXCLUSIVE_LOCKS_REQUIRED(critsect_); |
135 void SendPadding(size_t padding_needed) EXCLUSIVE_LOCKS_REQUIRED(critsect_); | 136 void SendPadding(size_t padding_needed) EXCLUSIVE_LOCKS_REQUIRED(critsect_); |
136 | 137 |
137 Clock* const clock_; | 138 Clock* const clock_; |
138 PacketSender* const packet_sender_; | 139 PacketSender* const packet_sender_; |
139 | 140 |
140 std::unique_ptr<CriticalSectionWrapper> critsect_; | 141 std::unique_ptr<CriticalSectionWrapper> critsect_; |
141 bool paused_ GUARDED_BY(critsect_); | 142 bool paused_ GUARDED_BY(critsect_); |
142 bool probing_enabled_; | 143 bool probing_enabled_; |
143 // This is the media budget, keeping track of how many bits of media | 144 // This is the media budget, keeping track of how many bits of media |
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157 uint32_t min_send_bitrate_kbps_ GUARDED_BY(critsect_); | 158 uint32_t min_send_bitrate_kbps_ GUARDED_BY(critsect_); |
158 uint32_t pacing_bitrate_kbps_ GUARDED_BY(critsect_); | 159 uint32_t pacing_bitrate_kbps_ GUARDED_BY(critsect_); |
159 | 160 |
160 int64_t time_last_update_us_ GUARDED_BY(critsect_); | 161 int64_t time_last_update_us_ GUARDED_BY(critsect_); |
161 | 162 |
162 std::unique_ptr<paced_sender::PacketQueue> packets_ GUARDED_BY(critsect_); | 163 std::unique_ptr<paced_sender::PacketQueue> packets_ GUARDED_BY(critsect_); |
163 uint64_t packet_counter_; | 164 uint64_t packet_counter_; |
164 }; | 165 }; |
165 } // namespace webrtc | 166 } // namespace webrtc |
166 #endif // WEBRTC_MODULES_PACING_PACED_SENDER_H_ | 167 #endif // WEBRTC_MODULES_PACING_PACED_SENDER_H_ |
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