19b4fecf08
Reason for revert: Speculative revert: want to see if this causes the regression in https://crbug.com/602621 Original issue's description: > Make QualityScaler more responsive to downgrades. > > Permits going from HD to QVGA in 6 seconds instead of 10. Also adds > windows for going up quickly in the beginning of a call (before any > downscaling happens due to bad quality). > > BUG=webrtc:5678 > R=glaznev@webrtc.org, stefan@webrtc.org > > Committed: https://crrev.com/85829fd90cc4e7a91c9857921b19e8fc126aeb60 > Cr-Commit-Position: refs/heads/master@{#12219} TBR=glaznev@webrtc.org,stefan@webrtc.org,pbos@webrtc.org # Not skipping CQ checks because original CL landed more than 1 days ago. BUG=webrtc:5678 NOTRY=true Review URL: https://codereview.webrtc.org/1880103002 Cr-Commit-Position: refs/heads/master@{#12331}
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/*
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* Copyright (c) 2014 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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#ifndef WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_
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#define WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_
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#include "webrtc/common_video/libyuv/include/scaler.h"
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#include "webrtc/modules/video_coding/utility/moving_average.h"
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namespace webrtc {
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class QualityScaler {
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public:
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static const int kDefaultLowQpDenominator;
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static const int kDefaultMinDownscaleDimension;
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struct Resolution {
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int width;
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int height;
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};
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QualityScaler();
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void Init(int low_qp_threshold,
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int high_qp_threshold,
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bool use_framerate_reduction,
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int initial_bitrate_kbps,
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int width,
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int height);
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void SetMinResolution(int min_width, int min_height);
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void ReportFramerate(int framerate);
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void ReportQP(int qp);
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void ReportDroppedFrame();
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void Reset(int framerate, int bitrate, int width, int height);
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void OnEncodeFrame(const VideoFrame& frame);
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Resolution GetScaledResolution() const;
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const VideoFrame& GetScaledFrame(const VideoFrame& frame);
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int GetTargetFramerate() const;
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int downscale_shift() const { return downscale_shift_; }
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private:
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void AdjustScale(bool up);
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void UpdateTargetResolution(int frame_width, int frame_height);
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void ClearSamples();
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Scaler scaler_;
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VideoFrame scaled_frame_;
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size_t num_samples_;
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int framerate_;
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int target_framerate_;
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int low_qp_threshold_;
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int high_qp_threshold_;
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MovingAverage<int> framedrop_percent_;
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MovingAverage<int> average_qp_;
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Resolution res_;
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int downscale_shift_;
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int framerate_down_;
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bool use_framerate_reduction_;
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int min_width_;
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int min_height_;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_
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