xref: /aosp_15_r20/external/webrtc/video/encoder_rtcp_feedback.h (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1*d9f75844SAndroid Build Coastguard Worker /*
2*d9f75844SAndroid Build Coastguard Worker  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
3*d9f75844SAndroid Build Coastguard Worker  *
4*d9f75844SAndroid Build Coastguard Worker  *  Use of this source code is governed by a BSD-style license
5*d9f75844SAndroid Build Coastguard Worker  *  that can be found in the LICENSE file in the root of the source
6*d9f75844SAndroid Build Coastguard Worker  *  tree. An additional intellectual property rights grant can be found
7*d9f75844SAndroid Build Coastguard Worker  *  in the file PATENTS.  All contributing project authors may
8*d9f75844SAndroid Build Coastguard Worker  *  be found in the AUTHORS file in the root of the source tree.
9*d9f75844SAndroid Build Coastguard Worker  */
10*d9f75844SAndroid Build Coastguard Worker #ifndef VIDEO_ENCODER_RTCP_FEEDBACK_H_
11*d9f75844SAndroid Build Coastguard Worker #define VIDEO_ENCODER_RTCP_FEEDBACK_H_
12*d9f75844SAndroid Build Coastguard Worker 
13*d9f75844SAndroid Build Coastguard Worker #include <functional>
14*d9f75844SAndroid Build Coastguard Worker #include <vector>
15*d9f75844SAndroid Build Coastguard Worker 
16*d9f75844SAndroid Build Coastguard Worker #include "api/sequence_checker.h"
17*d9f75844SAndroid Build Coastguard Worker #include "api/units/time_delta.h"
18*d9f75844SAndroid Build Coastguard Worker #include "api/units/timestamp.h"
19*d9f75844SAndroid Build Coastguard Worker #include "call/rtp_video_sender_interface.h"
20*d9f75844SAndroid Build Coastguard Worker #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
21*d9f75844SAndroid Build Coastguard Worker #include "rtc_base/system/no_unique_address.h"
22*d9f75844SAndroid Build Coastguard Worker #include "system_wrappers/include/clock.h"
23*d9f75844SAndroid Build Coastguard Worker #include "video/video_stream_encoder_interface.h"
24*d9f75844SAndroid Build Coastguard Worker 
25*d9f75844SAndroid Build Coastguard Worker namespace webrtc {
26*d9f75844SAndroid Build Coastguard Worker 
27*d9f75844SAndroid Build Coastguard Worker class VideoStreamEncoderInterface;
28*d9f75844SAndroid Build Coastguard Worker 
29*d9f75844SAndroid Build Coastguard Worker // This class passes feedback (such as key frame requests or loss notifications)
30*d9f75844SAndroid Build Coastguard Worker // from the RtpRtcp module.
31*d9f75844SAndroid Build Coastguard Worker class EncoderRtcpFeedback : public RtcpIntraFrameObserver,
32*d9f75844SAndroid Build Coastguard Worker                             public RtcpLossNotificationObserver {
33*d9f75844SAndroid Build Coastguard Worker  public:
34*d9f75844SAndroid Build Coastguard Worker   EncoderRtcpFeedback(
35*d9f75844SAndroid Build Coastguard Worker       Clock* clock,
36*d9f75844SAndroid Build Coastguard Worker       const std::vector<uint32_t>& ssrcs,
37*d9f75844SAndroid Build Coastguard Worker       VideoStreamEncoderInterface* encoder,
38*d9f75844SAndroid Build Coastguard Worker       std::function<std::vector<RtpSequenceNumberMap::Info>(
39*d9f75844SAndroid Build Coastguard Worker           uint32_t ssrc,
40*d9f75844SAndroid Build Coastguard Worker           const std::vector<uint16_t>& seq_nums)> get_packet_infos);
41*d9f75844SAndroid Build Coastguard Worker   ~EncoderRtcpFeedback() override = default;
42*d9f75844SAndroid Build Coastguard Worker 
43*d9f75844SAndroid Build Coastguard Worker   void OnReceivedIntraFrameRequest(uint32_t ssrc) override;
44*d9f75844SAndroid Build Coastguard Worker 
45*d9f75844SAndroid Build Coastguard Worker   // Implements RtcpLossNotificationObserver.
46*d9f75844SAndroid Build Coastguard Worker   void OnReceivedLossNotification(uint32_t ssrc,
47*d9f75844SAndroid Build Coastguard Worker                                   uint16_t seq_num_of_last_decodable,
48*d9f75844SAndroid Build Coastguard Worker                                   uint16_t seq_num_of_last_received,
49*d9f75844SAndroid Build Coastguard Worker                                   bool decodability_flag) override;
50*d9f75844SAndroid Build Coastguard Worker 
51*d9f75844SAndroid Build Coastguard Worker  private:
52*d9f75844SAndroid Build Coastguard Worker   Clock* const clock_;
53*d9f75844SAndroid Build Coastguard Worker   const std::vector<uint32_t> ssrcs_;
54*d9f75844SAndroid Build Coastguard Worker   const std::function<std::vector<RtpSequenceNumberMap::Info>(
55*d9f75844SAndroid Build Coastguard Worker       uint32_t ssrc,
56*d9f75844SAndroid Build Coastguard Worker       const std::vector<uint16_t>& seq_nums)>
57*d9f75844SAndroid Build Coastguard Worker       get_packet_infos_;
58*d9f75844SAndroid Build Coastguard Worker   VideoStreamEncoderInterface* const video_stream_encoder_;
59*d9f75844SAndroid Build Coastguard Worker 
60*d9f75844SAndroid Build Coastguard Worker   RTC_NO_UNIQUE_ADDRESS SequenceChecker packet_delivery_queue_;
61*d9f75844SAndroid Build Coastguard Worker   Timestamp time_last_packet_delivery_queue_
62*d9f75844SAndroid Build Coastguard Worker       RTC_GUARDED_BY(packet_delivery_queue_);
63*d9f75844SAndroid Build Coastguard Worker 
64*d9f75844SAndroid Build Coastguard Worker   const TimeDelta min_keyframe_send_interval_;
65*d9f75844SAndroid Build Coastguard Worker };
66*d9f75844SAndroid Build Coastguard Worker 
67*d9f75844SAndroid Build Coastguard Worker }  // namespace webrtc
68*d9f75844SAndroid Build Coastguard Worker 
69*d9f75844SAndroid Build Coastguard Worker #endif  // VIDEO_ENCODER_RTCP_FEEDBACK_H_
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