70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VIDEO_ENCODER_RTCP_FEEDBACK_H_
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#define VIDEO_ENCODER_RTCP_FEEDBACK_H_
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#include <functional>
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#include <vector>
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#include "api/sequence_checker.h"
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#include "api/units/time_delta.h"
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#include "api/units/timestamp.h"
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#include "api/video/video_stream_encoder_interface.h"
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#include "call/rtp_video_sender_interface.h"
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#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
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#include "rtc_base/system/no_unique_address.h"
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#include "system_wrappers/include/clock.h"
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namespace webrtc {
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class VideoStreamEncoderInterface;
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// This class passes feedback (such as key frame requests or loss notifications)
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// from the RtpRtcp module.
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class EncoderRtcpFeedback : public RtcpIntraFrameObserver,
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public RtcpLossNotificationObserver {
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public:
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EncoderRtcpFeedback(
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Clock* clock,
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const std::vector<uint32_t>& ssrcs,
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VideoStreamEncoderInterface* encoder,
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std::function<std::vector<RtpSequenceNumberMap::Info>(
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uint32_t ssrc,
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const std::vector<uint16_t>& seq_nums)> get_packet_infos);
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~EncoderRtcpFeedback() override = default;
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void OnReceivedIntraFrameRequest(uint32_t ssrc) override;
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// Implements RtcpLossNotificationObserver.
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void OnReceivedLossNotification(uint32_t ssrc,
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uint16_t seq_num_of_last_decodable,
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uint16_t seq_num_of_last_received,
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bool decodability_flag) override;
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private:
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Clock* const clock_;
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const std::vector<uint32_t> ssrcs_;
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const std::function<std::vector<RtpSequenceNumberMap::Info>(
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uint32_t ssrc,
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const std::vector<uint16_t>& seq_nums)>
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get_packet_infos_;
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VideoStreamEncoderInterface* const video_stream_encoder_;
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RTC_NO_UNIQUE_ADDRESS SequenceChecker packet_delivery_queue_;
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Timestamp time_last_packet_delivery_queue_
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RTC_GUARDED_BY(packet_delivery_queue_);
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const TimeDelta min_keyframe_send_interval_;
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};
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} // namespace webrtc
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#endif // VIDEO_ENCODER_RTCP_FEEDBACK_H_
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