webrtc_m130/common_video/framerate_controller.h
Florent Castelli 8037fc6ffa Migrate absl::optional to std::optional
Bug: webrtc:342905193
No-Try: True
Change-Id: Icc968be43b8830038ea9a1f5f604307220457807
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/361021
Auto-Submit: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Florent Castelli <orphis@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42911}
2024-09-02 12:16:47 +00:00

47 lines
1.2 KiB
C++

/*
* Copyright 2021 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 COMMON_VIDEO_FRAMERATE_CONTROLLER_H_
#define COMMON_VIDEO_FRAMERATE_CONTROLLER_H_
#include <stdint.h>
#include <optional>
namespace webrtc {
// Determines which frames that should be dropped based on input framerate and
// requested framerate.
class FramerateController {
public:
FramerateController();
explicit FramerateController(double max_framerate);
~FramerateController();
// Sets max framerate (default is maxdouble).
void SetMaxFramerate(double max_framerate);
double GetMaxFramerate() const;
// Returns true if the frame should be dropped, false otherwise.
bool ShouldDropFrame(int64_t in_timestamp_ns);
void Reset();
void KeepFrame(int64_t in_timestamp_ns);
private:
double max_framerate_;
std::optional<int64_t> next_frame_timestamp_ns_;
};
} // namespace webrtc
#endif // COMMON_VIDEO_FRAMERATE_CONTROLLER_H_