14b43beb7c
TBR=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/915006 git-svn-id: http://webrtc.googlecode.com/svn/trunk@2963 4adac7df-926f-26a2-2b94-8c16560cd09d
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
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* Copyright (c) 2012 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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struct VideoContentMetrics;
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// QM interval time (in ms)
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enum {
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kQmMinIntervalMs = 10000
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};
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// Flag for NFD metric vs motion metric
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enum {
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kNfdMetric = 1
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};
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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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public:
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VCMContentMetricsProcessing();
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~VCMContentMetricsProcessing();
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// Update class with latest metrics.
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int UpdateContentData(const VideoContentMetrics *contentMetrics);
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// Reset the short-term averaged content data.
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void ResetShortTermAvgData();
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// Initialize.
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int Reset();
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// Inform class of current frame rate.
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void UpdateFrameRate(uint32_t frameRate);
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// Returns the long-term averaged content data: recursive average over longer
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// time scale.
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VideoContentMetrics* LongTermAvgData();
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// Returns the short-term averaged content data: uniform average over
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// shorter time scalE.
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VideoContentMetrics* ShortTermAvgData();
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private:
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// Compute working average.
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int ProcessContent(const VideoContentMetrics *contentMetrics);
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// Update the recursive averaged metrics: longer time average (~5/10 secs).
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void UpdateRecursiveAvg(const VideoContentMetrics *contentMetrics);
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// Update the uniform averaged metrics: shorter time average (~RTCP report).
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void UpdateUniformAvg(const VideoContentMetrics *contentMetrics);
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VideoContentMetrics* recursive_avg_;
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VideoContentMetrics* uniform_avg_;
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float recursive_avg_factor_;
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uint32_t frame_cnt_uniform_avg_;
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float avg_motion_level_;
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float avg_spatial_level_;
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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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