8cfae1bb3f
Remove redundant ssrc_ set, instead construct send_delay_stats_ early Remove extra lookup when packet is sent out, instead memorize pointer to needed object minor style improvments using syntax new in c++17 Bug: None Change-Id: I0f0e28f5a01de0380502d4bee64cdf76e44a59cd Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/317760 Reviewed-by: Åsa Persson <asapersson@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#40630}
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
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* Copyright (c) 2016 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_SEND_DELAY_STATS_H_
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#define VIDEO_SEND_DELAY_STATS_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <map>
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#include "api/units/timestamp.h"
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#include "call/video_send_stream.h"
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#include "modules/include/module_common_types_public.h"
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#include "rtc_base/synchronization/mutex.h"
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#include "rtc_base/thread_annotations.h"
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#include "system_wrappers/include/clock.h"
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#include "video/stats_counter.h"
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namespace webrtc {
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// Used to collect delay stats for video streams. The class gets callbacks
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// from more than one threads and internally uses a mutex for data access
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// synchronization.
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// TODO(bugs.webrtc.org/11993): OnSendPacket and OnSentPacket will eventually
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// be called consistently on the same thread. Once we're there, we should be
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// able to avoid locking (at least for the fast path).
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class SendDelayStats : public SendPacketObserver {
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public:
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explicit SendDelayStats(Clock* clock);
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~SendDelayStats() override;
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// Adds the configured ssrcs for the rtp streams.
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// Stats will be calculated for these streams.
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void AddSsrcs(const VideoSendStream::Config& config);
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// Called when a packet is sent (leaving socket).
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bool OnSentPacket(int packet_id, Timestamp time);
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protected:
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// From SendPacketObserver.
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// Called when a packet is sent to the transport.
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void OnSendPacket(uint16_t packet_id,
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Timestamp capture_time,
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uint32_t ssrc) override;
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private:
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// Map holding sent packets (mapped by sequence number).
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struct SequenceNumberOlderThan {
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bool operator()(uint16_t seq1, uint16_t seq2) const {
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return IsNewerSequenceNumber(seq2, seq1);
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}
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};
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struct Packet {
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AvgCounter* send_delay;
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Timestamp capture_time;
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Timestamp send_time;
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};
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void UpdateHistograms();
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void RemoveOld(Timestamp now) RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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Clock* const clock_;
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Mutex mutex_;
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std::map<uint16_t, Packet, SequenceNumberOlderThan> packets_
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RTC_GUARDED_BY(mutex_);
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size_t num_old_packets_ RTC_GUARDED_BY(mutex_);
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size_t num_skipped_packets_ RTC_GUARDED_BY(mutex_);
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// Mapped by SSRC.
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std::map<uint32_t, AvgCounter> send_delay_counters_ RTC_GUARDED_BY(mutex_);
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};
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} // namespace webrtc
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#endif // VIDEO_SEND_DELAY_STATS_H_
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