cbac40d321
Reason for revert: Regressed behavior is actually desirable (go down to 360p instead of producing super-bad 720p). Original issue's description: > Revert of Make QualityScaler more responsive to downgrades. (patchset #3 id:40001 of https://codereview.webrtc.org/1830593003/ ) > > 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 > > Committed: https://crrev.com/19b4fecf08e3fe215e431a260fb673553c15e569 > Cr-Commit-Position: refs/heads/master@{#12331} TBR=glaznev@webrtc.org,stefan@webrtc.org,phoglund@webrtc.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=chromium:602621, webrtc:5678 Review URL: https://codereview.webrtc.org/1887493003 Cr-Commit-Position: refs/heads/master@{#12341}
78 lines
2.3 KiB
C++
78 lines
2.3 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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int fps);
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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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void UpdateSampleCounts();
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Scaler scaler_;
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VideoFrame scaled_frame_;
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size_t num_samples_downscale_;
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size_t num_samples_upscale_;
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int measure_seconds_upscale_;
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MovingAverage<int> average_qp_upscale_;
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MovingAverage<int> average_qp_downscale_;
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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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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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