78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
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/*
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* Copyright (c) 2011 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_CONTENT_METRICS_PROCESSING_H_
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#define WEBRTC_MODULES_VIDEO_CODING_CONTENT_METRICS_PROCESSING_H_
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#include "typedefs.h"
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namespace webrtc
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{
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struct VideoContentMetrics;
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// QM interval time
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enum { kQmMinIntervalMs = 10000 };
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enum { kCcMinIntervalMs = 5000 };
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//Flag for NFD metric vs motion metric
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enum { kNfdMetric = 1 };
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/**********************************/
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/* Content Metrics Processing */
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/**********************************/
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class VCMContentMetricsProcessing
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{
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public:
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VCMContentMetricsProcessing();
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~VCMContentMetricsProcessing();
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// Update class with latest metrics
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WebRtc_Word32 UpdateContentData(const VideoContentMetrics *contentMetrics);
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// Check for content change detection
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bool ContentChangeCheck();
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//Initialize to
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WebRtc_Word32 Reset();
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// Inform class of current frame rate
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void UpdateFrameRate(WebRtc_UWord32 frameRate);
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// Get working (avg) value
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VideoContentMetrics* Data();
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private:
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// Compute working avg
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WebRtc_UWord32 ProcessContent(const VideoContentMetrics *contentMetrics);
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// Computation of global metric
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void UpdateGlobalMetric(const VideoContentMetrics *contentMetrics);
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// Compute local average of certain metrics for content change detection
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void UpdateLocalMetricCC(float motionVal, float spatialVal);
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VideoContentMetrics* _globalRecursiveAvg;
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WebRtc_UWord32 _frameRate;
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float _recAvgFactor;
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WebRtc_UWord32 _frameCnt;
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float _prevAvgSizeZeroMotion;
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float _avgSizeZeroMotion;
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float _prevAvgSpatialPredErr;
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float _avgSpatialPredErr;
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WebRtc_UWord32 _frameCntForCC;
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WebRtc_UWord64 _lastCCpdateTime;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_VIDEO_CODING_CONTENT_METRICS_PROCESSING_H_
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