926dfcdf5e
Applies to all platforms, not only Android now, 160x90 video looks awful and there's no real point to going below QVGA. BUG=webrtc:5678 R=danilchap@webrtc.org TBR=glaznev@webrtc.org Review URL: https://codereview.webrtc.org/1867643003 . Cr-Commit-Position: refs/heads/master@{#12362}
74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2014 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 WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_
|
|
#define WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_
|
|
|
|
#include "webrtc/common_video/libyuv/include/scaler.h"
|
|
#include "webrtc/modules/video_coding/utility/moving_average.h"
|
|
|
|
namespace webrtc {
|
|
class QualityScaler {
|
|
public:
|
|
static const int kDefaultLowQpDenominator;
|
|
struct Resolution {
|
|
int width;
|
|
int height;
|
|
};
|
|
|
|
QualityScaler();
|
|
void Init(int low_qp_threshold,
|
|
int high_qp_threshold,
|
|
bool use_framerate_reduction,
|
|
int initial_bitrate_kbps,
|
|
int width,
|
|
int height,
|
|
int fps);
|
|
void ReportFramerate(int framerate);
|
|
void ReportQP(int qp);
|
|
void ReportDroppedFrame();
|
|
void Reset(int framerate, int bitrate, int width, int height);
|
|
void OnEncodeFrame(const VideoFrame& frame);
|
|
Resolution GetScaledResolution() const;
|
|
const VideoFrame& GetScaledFrame(const VideoFrame& frame);
|
|
int GetTargetFramerate() const;
|
|
int downscale_shift() const { return downscale_shift_; }
|
|
|
|
private:
|
|
void AdjustScale(bool up);
|
|
void UpdateTargetResolution(int frame_width, int frame_height);
|
|
void ClearSamples();
|
|
void UpdateSampleCounts();
|
|
|
|
Scaler scaler_;
|
|
VideoFrame scaled_frame_;
|
|
|
|
size_t num_samples_downscale_;
|
|
size_t num_samples_upscale_;
|
|
int measure_seconds_upscale_;
|
|
MovingAverage<int> average_qp_upscale_;
|
|
MovingAverage<int> average_qp_downscale_;
|
|
|
|
int framerate_;
|
|
int target_framerate_;
|
|
int low_qp_threshold_;
|
|
int high_qp_threshold_;
|
|
MovingAverage<int> framedrop_percent_;
|
|
Resolution res_;
|
|
|
|
int downscale_shift_;
|
|
int framerate_down_;
|
|
bool use_framerate_reduction_;
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_
|