72 lines
2.0 KiB
C#
72 lines
2.0 KiB
C#
using System;
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using System.Diagnostics;
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namespace AxiReplay
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{
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public partial class FrameProfiler
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{
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private int m_headFrame;
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private int m_cacheCount;
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private int m_targetFrameRate;
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private RingBuffer<double> m_timePoints;
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private double m_lastTime;
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private Stopwatch sw;
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public void InputHead(int headFrame)
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{
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m_headFrame = headFrame;
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var currentTimeMs = GetCurrTime();
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if (m_timePoints.Available() == 60)
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CalcCacheCount();
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m_timePoints.Write(currentTimeMs - m_lastTime);
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m_lastTime = currentTimeMs;
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}
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public void Reset(int targetFrameRate = 60)
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{
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if (sw != null) sw.Stop();
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sw = Stopwatch.StartNew();
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m_timePoints = new RingBuffer<double>(targetFrameRate);
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m_lastTime = 0;
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m_targetFrameRate = targetFrameRate;
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}
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/// <summary>
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/// 临时方法(暂行）
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/// </summary>
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/// <param name="mRemoteForwardCount"></param>
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/// <returns></returns>
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/// <exception cref="NotImplementedException"></exception>
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public int TempFrameCount(int mRemoteForwardCount)
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{
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if (mRemoteForwardCount == 0)
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return 0;
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if (mRemoteForwardCount < 5)
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return 1;
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else
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return (int)Math.Ceiling(mRemoteForwardCount / 5f);
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}
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void CalcCacheCount()
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{
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double deltaMax = 0;
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double delta;
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while (m_timePoints.TryRead(out delta))
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{
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deltaMax = Math.Max(deltaMax, delta);
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}
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int minCacheCount = (int)Math.Ceiling(deltaMax * m_targetFrameRate);
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m_cacheCount = minCacheCount;
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}
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double GetCurrTime()
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{
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if (sw == null) return 0;
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return sw.Elapsed.TotalMilliseconds;
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}
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}
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} |