[core] Restoring CSndRateEstimator

srtcore/buffer_tools.cpp

@@ -157,10 +157,9 @@ void CRateEstimator::updateInputRate(const time_point& time, int pkts, int bytes
 
 CSndRateEstimator::CSndRateEstimator(const time_point& tsNow)
     : m_tsFirstSampleTime(tsNow)
+    , m_iFirstSampleIdx(0)
     , m_iCurSampleIdx(0)
     , m_iRateBps(0)
-    , m_Samples(NUM_PERIODS)
-    , m_iFirstSampleIdx(0)
 {
 
 }

srtcore/buffer_tools.h

@@ -148,11 +148,9 @@ class CSndRateEstimator
     /// including the current sampling interval.
     int getCurrentRate() const;
 
-protected:
-    time_point m_tsFirstSampleTime; //< Start time of the first sample.
-    int        m_iCurSampleIdx;     //< Index of the current sample being collected.
-    int        m_iRateBps;          //< Rate in Bytes/sec.
-
+private:
+    static const int NUM_PERIODS        = 10;
+    static const int SAMPLE_DURATION_MS = 100; // 100 ms
     struct Sample
     {
         int m_iPktsCount;  // number of payload packets
@@ -190,14 +188,14 @@ class CSndRateEstimator
         bool empty() const { return m_iPktsCount == 0; }
     };
 
-    srt::FixedArray<Sample> m_Samples; // Table of stored data
+    int incSampleIdx(int val, int inc = 1) const;
 
-private:
-    static const int NUM_PERIODS        = 10;
-    static const int SAMPLE_DURATION_MS = 100; // 100 ms
-    int              m_iFirstSampleIdx;        //< Index of the first sample.
+    Sample m_Samples[NUM_PERIODS];
 
-    int incSampleIdx(int val, int inc = 1) const;
+    time_point m_tsFirstSampleTime; //< Start time of the first sameple.
+    int        m_iFirstSampleIdx;   //< Index of the first sample.
+    int        m_iCurSampleIdx;     //< Index of the current sample being collected.
+    int        m_iRateBps;          // Input Rate in Bytes/sec
 };
 
 class CMovingRateEstimator