mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 13:50:40 +01:00
03f8b8a241
rtc::TaskQueue is a simple wrapper over TaskQueueBase and adds no extra features when task queue is used without passing ownership. Reducing usage of the internal rtc::TaskQueue wrapper gives users more flexibility how TaskQueueBase* is stored. Bug: webrtc:14169 Change-Id: If5c8827544c843502c7dfcef775ac558de79ec3a Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/268189 Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37549}
93 lines
3.2 KiB
C++
93 lines
3.2 KiB
C++
/*
|
|
* Copyright (c) 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 MODULES_VIDEO_CODING_UTILITY_BANDWIDTH_QUALITY_SCALER_H_
|
|
#define MODULES_VIDEO_CODING_UTILITY_BANDWIDTH_QUALITY_SCALER_H_
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
#include "absl/types/optional.h"
|
|
#include "api/scoped_refptr.h"
|
|
#include "api/sequence_checker.h"
|
|
#include "api/video_codecs/video_encoder.h"
|
|
#include "rtc_base/experiments/encoder_info_settings.h"
|
|
#include "rtc_base/logging.h"
|
|
#include "rtc_base/numerics/exp_filter.h"
|
|
#include "rtc_base/rate_statistics.h"
|
|
#include "rtc_base/ref_count.h"
|
|
#include "rtc_base/system/no_unique_address.h"
|
|
#include "rtc_base/weak_ptr.h"
|
|
|
|
namespace webrtc {
|
|
|
|
class BandwidthQualityScalerUsageHandlerInterface {
|
|
public:
|
|
virtual ~BandwidthQualityScalerUsageHandlerInterface();
|
|
|
|
virtual void OnReportUsageBandwidthHigh() = 0;
|
|
virtual void OnReportUsageBandwidthLow() = 0;
|
|
};
|
|
|
|
// BandwidthQualityScaler runs asynchronously and monitors bandwidth values of
|
|
// encoded frames. It holds a reference to a
|
|
// BandwidthQualityScalerUsageHandlerInterface implementation to signal an
|
|
// overuse or underuse of bandwidth (which indicate a desire to scale the video
|
|
// stream down or up).
|
|
class BandwidthQualityScaler {
|
|
public:
|
|
explicit BandwidthQualityScaler(
|
|
BandwidthQualityScalerUsageHandlerInterface* handler);
|
|
virtual ~BandwidthQualityScaler();
|
|
|
|
void ReportEncodeInfo(int frame_size_bytes,
|
|
int64_t time_sent_in_ms,
|
|
uint32_t encoded_width,
|
|
uint32_t encoded_height);
|
|
|
|
// We prioritise to using the |resolution_bitrate_limits| provided by the
|
|
// current decoder. If not provided, we will use the default data by
|
|
// GetDefaultResolutionBitrateLimits().
|
|
void SetResolutionBitrateLimits(
|
|
const std::vector<VideoEncoder::ResolutionBitrateLimits>&
|
|
resolution_bitrate_limits);
|
|
|
|
const TimeDelta kBitrateStateUpdateInterval;
|
|
|
|
private:
|
|
enum class CheckBitrateResult {
|
|
kInsufficientSamples,
|
|
kNormalBitrate,
|
|
kHighBitRate,
|
|
kLowBitRate,
|
|
};
|
|
|
|
// We will periodically check encode bitrate, this function will make
|
|
// resolution up or down decisions and report the decision to the adapter.
|
|
void StartCheckForBitrate();
|
|
CheckBitrateResult CheckBitrate();
|
|
|
|
RTC_NO_UNIQUE_ADDRESS SequenceChecker task_checker_;
|
|
BandwidthQualityScalerUsageHandlerInterface* const handler_
|
|
RTC_GUARDED_BY(&task_checker_);
|
|
|
|
absl::optional<int64_t> last_time_sent_in_ms_ RTC_GUARDED_BY(&task_checker_);
|
|
RateStatistics encoded_bitrate_ RTC_GUARDED_BY(&task_checker_);
|
|
absl::optional<int> last_frame_size_pixels_ RTC_GUARDED_BY(&task_checker_);
|
|
rtc::WeakPtrFactory<BandwidthQualityScaler> weak_ptr_factory_;
|
|
|
|
std::vector<VideoEncoder::ResolutionBitrateLimits> resolution_bitrate_limits_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
#endif // MODULES_VIDEO_CODING_UTILITY_BANDWIDTH_QUALITY_SCALER_H_
|