webrtc/modules/congestion_controller/goog_cc/probe_bitrate_estimator.h
Danil Chapovalov 0040b66ad3 Replace rtc::Optional with absl::optional
This is a no-op change because rtc::Optional is an alias to absl::optional

This CL generated by running script from modules with parameters
'pacing video_coding congestion_controller remote_bitrate_estimator':

find $@ -type f \( -name \*.h -o -name \*.cc \) \
-exec sed -i 's|rtc::Optional|absl::optional|g' {} \+ \
-exec sed -i 's|rtc::nullopt|absl::nullopt|g' {} \+ \
-exec sed -i 's|#include "api/optional.h"|#include "absl/types/optional.h"|' {} \+

find $@ -type f -name BUILD.gn \
-exec sed -r -i 's|"(../)*api:optional"|"//third_party/abseil-cpp/absl/types:optional"|' {} \+;

git cl format

Bug: webrtc:9078
Change-Id: I8ea501d7f1ee36e8d8cd3ed37e6b763c7fe29118
Reviewed-on: https://webrtc-review.googlesource.com/83900
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23640}
2018-06-18 10:24:48 +00:00

55 lines
1.8 KiB
C++

/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_
#define MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_
#include <limits>
#include <map>
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
namespace webrtc {
class RtcEventLog;
class ProbeBitrateEstimator {
public:
explicit ProbeBitrateEstimator(RtcEventLog* event_log);
~ProbeBitrateEstimator();
// Should be called for every probe packet we receive feedback about.
// Returns the estimated bitrate if the probe completes a valid cluster.
int HandleProbeAndEstimateBitrate(const PacketFeedback& packet_feedback);
absl::optional<int> FetchAndResetLastEstimatedBitrateBps();
private:
struct AggregatedCluster {
int num_probes = 0;
int64_t first_send_ms = std::numeric_limits<int64_t>::max();
int64_t last_send_ms = 0;
int64_t first_receive_ms = std::numeric_limits<int64_t>::max();
int64_t last_receive_ms = 0;
int size_last_send = 0;
int size_first_receive = 0;
int size_total = 0;
};
// Erases old cluster data that was seen before |timestamp_ms|.
void EraseOldClusters(int64_t timestamp_ms);
std::map<int, AggregatedCluster> clusters_;
RtcEventLog* const event_log_;
absl::optional<int> estimated_bitrate_bps_;
};
} // namespace webrtc
#endif // MODULES_CONGESTION_CONTROLLER_GOOG_CC_PROBE_BITRATE_ESTIMATOR_H_