webrtc/modules/congestion_controller/goog_cc/congestion_window_pushback_controller.h
Yves Gerey 3e70781361 [Cleanup] Add missing #include. Remove useless ones. IWYU part 2.
This is a follow-up to
https://webrtc-review.googlesource.com/c/src/+/106280.
This time the whole code base is covered.
Some files may have not been fixed though, whenever the IWYU tool
was breaking the build.

Bug: webrtc:8311
Change-Id: I2c31f552a87e887d33931d46e87b6208b1e483ef
Reviewed-on: https://webrtc-review.googlesource.com/c/111965
Commit-Queue: Yves Gerey <yvesg@google.com>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25830}
2018-11-28 18:25:07 +00:00

46 lines
1.8 KiB
C++

/*
* Copyright (c) 2018 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_CONGESTION_WINDOW_PUSHBACK_CONTROLLER_H_
#define MODULES_CONGESTION_CONTROLLER_GOOG_CC_CONGESTION_WINDOW_PUSHBACK_CONTROLLER_H_
#include <stddef.h>
#include <stdint.h>
#include "absl/types/optional.h"
#include "api/units/data_size.h"
namespace webrtc {
// This class enables pushback from congestion window directly to video encoder.
// When the congestion window is filling up, the video encoder target bitrate
// will be reduced accordingly to accommodate the network changes. To avoid
// pausing video too frequently, a minimum encoder target bitrate threshold is
// used to prevent video pause due to a full congestion window.
class CongestionWindowPushbackController {
public:
CongestionWindowPushbackController();
explicit CongestionWindowPushbackController(
uint32_t min_pushback_target_bitrate_bps);
void UpdateOutstandingData(size_t outstanding_bytes);
void UpdateMaxOutstandingData(size_t max_outstanding_bytes);
uint32_t UpdateTargetBitrate(uint32_t bitrate_bps);
void SetDataWindow(DataSize data_window);
private:
absl::optional<DataSize> current_data_window_;
size_t outstanding_bytes_ = 0;
uint32_t min_pushback_target_bitrate_bps_;
double encoding_rate_ratio_ = 1.0;
};
} // namespace webrtc
#endif // MODULES_CONGESTION_CONTROLLER_GOOG_CC_CONGESTION_WINDOW_PUSHBACK_CONTROLLER_H_