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30b4839d10
Analogous to https://webrtc-review.googlesource.com/c/src/+/92398, for RtpVideoStreamReceiver. Bug: webrtc:7135 Change-Id: I0639f9982da2ed80edbcf900cf14f8ae982ef80c Reviewed-on: https://webrtc-review.googlesource.com/93820 Commit-Queue: Niels Moller <nisse@webrtc.org> Reviewed-by: Oskar Sundbom <ossu@webrtc.org> Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24309}
68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018 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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#include "modules/rtp_rtcp/source/contributing_sources.h"
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namespace webrtc {
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namespace {
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// Allow some stale records to accumulate before cleaning.
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constexpr int64_t kPruningIntervalMs = 15 * rtc::kNumMillisecsPerSec;
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} // namespace
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constexpr int64_t ContributingSources::kHistoryMs;
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ContributingSources::ContributingSources() = default;
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ContributingSources::~ContributingSources() = default;
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void ContributingSources::Update(int64_t now_ms,
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rtc::ArrayView<const uint32_t> csrcs) {
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for (uint32_t csrc : csrcs) {
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last_seen_ms_[csrc] = now_ms;
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}
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if (!next_pruning_ms_) {
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next_pruning_ms_ = now_ms + kPruningIntervalMs;
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} else if (now_ms > next_pruning_ms_) {
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// To prevent unlimited growth, prune it every 15 seconds.
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DeleteOldEntries(now_ms);
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}
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}
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// Return contributing sources seen the last 10 s.
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// TODO(nisse): It would be more efficient to delete any stale entries while
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// iterating over the mapping, but then we'd have to make the method
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// non-const.
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std::vector<RtpSource> ContributingSources::GetSources(int64_t now_ms) const {
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std::vector<RtpSource> sources;
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for (auto& record : last_seen_ms_) {
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if (record.second >= now_ms - kHistoryMs) {
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sources.emplace_back(record.second, record.first, RtpSourceType::CSRC);
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}
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}
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return sources;
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}
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// Delete stale entries.
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void ContributingSources::DeleteOldEntries(int64_t now_ms) {
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for (auto it = last_seen_ms_.begin(); it != last_seen_ms_.end();) {
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if (it->second >= now_ms - kHistoryMs) {
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// Still relevant.
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++it;
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} else {
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it = last_seen_ms_.erase(it);
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}
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}
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next_pruning_ms_ = now_ms + kPruningIntervalMs;
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}
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} // namespace webrtc
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