- better internal statistics + memory performance optimization

src/engine/audio/Audio_Resampler.cpp

@@ -18,9 +18,7 @@ namespace Audio
 
 
 SpeexResampler::SpeexResampler()
-    :mContext(NULL), mErrorCode(0), mSourceRate(0), mDestRate(0), mLastSample(0), mChannels(0)
+{}
-{
-}
 
 void SpeexResampler::start(int channels, int sourceRate, int destRate)
 {
@@ -51,6 +49,11 @@ void SpeexResampler::stop()
     }
 }
 
+bool SpeexResampler::isOpened() const
+{
+    return mContext != nullptr;
+}
+
 SpeexResampler::~SpeexResampler()
 {
     stop();
@@ -113,22 +116,22 @@ size_t SpeexResampler::processBuffer(const void* src, size_t sourceLength, size_
     return outLen * sizeof(short) * mChannels;
 }
 
-int SpeexResampler::sourceRate()
+int SpeexResampler::sourceRate() const
 {
     return mSourceRate;
 }
 
-int SpeexResampler::destRate()
+int SpeexResampler::destRate() const
 {
     return mDestRate;
 }
 
-size_t SpeexResampler::getDestLength(size_t sourceLen)
+size_t SpeexResampler::getDestLength(size_t sourceLen) const
 {
     return size_t(sourceLen * (float(mDestRate) / mSourceRate) + 0.5f);
 }
 
-size_t SpeexResampler::getSourceLength(size_t destLen)
+size_t SpeexResampler::getSourceLength(size_t destLen) const
 {
     // Here we want to get 'destLen' number of samples
     return size_t(destLen * (float(mSourceRate) / mDestRate) + 0.5f);

src/engine/audio/Audio_Resampler.h

@@ -24,23 +24,25 @@ namespace Audio
 
         void start(int channels, int sourceRate, int destRate);
         void stop();
+        bool isOpened() const;
+
         size_t processBuffer(const void* source, size_t sourceLength, size_t& sourceProcessed,
                              void* dest, size_t destCapacity);
-        int sourceRate();
+        int sourceRate() const;
-        int destRate();
+        int destRate() const;
-        size_t getDestLength(size_t sourceLen);
+        size_t getDestLength(size_t sourceLen) const;
-        size_t getSourceLength(size_t destLen);
+        size_t getSourceLength(size_t destLen) const;
 
         // Returns instance + speex encoder size in bytes
         size_t getSize() const;
 
     protected:
-        void* mContext;
+        void* mContext = nullptr;
-        int   mErrorCode;
+        int   mErrorCode = 0;
-        int   mSourceRate,
+        int   mSourceRate = 0,
-        mDestRate,
+              mDestRate = 0,
-        mChannels;
+              mChannels = 0;
-        short mLastSample;
+        short mLastSample = 0;
     };
 
     typedef SpeexResampler Resampler;

src/engine/media/MT_AudioReceiver.cpp

@@ -368,20 +368,10 @@ Receiver::~Receiver()
 AudioReceiver::AudioReceiver(const CodecList::Settings& settings, MT::Statistics &stat)
     :Receiver(stat), mRtpBuffer(stat), mDtmfBuffer(stat), mCodecSettings(settings), mCodecList(settings), mDtmfReceiver(stat)
 {
-    // Init resamplers
-    mResampler8.start(AUDIO_CHANNELS, 8000, AUDIO_SAMPLERATE);
-    mResampler16.start(AUDIO_CHANNELS, 16000, AUDIO_SAMPLERATE);
-    mResampler32.start(AUDIO_CHANNELS, 32000, AUDIO_SAMPLERATE);
-    mResampler48.start(AUDIO_CHANNELS, 48000, AUDIO_SAMPLERATE);
-
     // Init codecs
     mCodecList.setSettings(settings);
     mCodecList.fillCodecMap(mCodecMap);
 
-    // 10 seconds is the maximum length of decoded audio in single step
-    // It is important - DTX may produce silence up to few seconds easily
-    mAvailable.setCapacity(AUDIO_SAMPLERATE * 10 * sizeof(short));
-
     mDtmfBuffer.setPrebuffer(0ms);
     mDtmfBuffer.setLow(0ms);
     mDtmfBuffer.setHigh(1ms);
@@ -389,6 +379,12 @@ AudioReceiver::AudioReceiver(const CodecList::Settings& settings, MT::Statistics
     // Avoid collecting too much data
     mRtpBuffer.setHigh(240ms);
 
+    // Resamplers are lazy inside; there is no actual memory allocation
+    mResampler8.start(AUDIO_CHANNELS, 8000, AUDIO_SAMPLERATE);
+    mResampler16.start(AUDIO_CHANNELS, 16000, AUDIO_SAMPLERATE);
+    mResampler32.start(AUDIO_CHANNELS, 32000, AUDIO_SAMPLERATE);
+    mResampler48.start(AUDIO_CHANNELS, 48000, AUDIO_SAMPLERATE);
+
 #if defined(DUMP_DECODED)
     mDecodedDump = std::make_shared<Audio::WavFileWriter>();
     mDecodedDump->open("decoded.wav", 8000 /*G711*/, AUDIO_CHANNELS);
@@ -906,6 +902,13 @@ void AudioReceiver::ensureDecodeBuffers()
         mConvertedFrame.resize(MT_MAX_DECODEBUFFER * 2);
         mResampledFrame.resize(MT_MAX_DECODEBUFFER);
     }
+
+    if (!mAvailable.capacity())
+    {
+        // 10 seconds is the maximum length of decoded audio in single step
+        // It is important - DTX may produce silence up to few seconds easily
+        mAvailable.setCapacity(AUDIO_SAMPLERATE * 10 * sizeof(short));
+    }
 }
 
 void AudioReceiver::makeMonoAndResample(int rate, int channels)

src/libs/resiprocate/resip/stack/Message.cxx

@@ -9,8 +9,12 @@
 using namespace resip;
 
 
+std::atomic<long> Message::sInstanceCount{0};
+
 Message::Message() : mTu(0)
-{}
+{
+   ++sInstanceCount;
+}
 
 Message::Brief
 Message::brief() const

src/libs/resiprocate/resip/stack/Message.hxx

@@ -7,6 +7,7 @@
 
 #include "rutil/Data.hxx"
 #include <iosfwd>
+#include <atomic>
 #include "rutil/resipfaststreams.hxx"
 
 namespace resip
@@ -21,7 +22,11 @@ class Message
 {
    public:
       Message();
-      virtual ~Message() {}
+      virtual ~Message() { --sInstanceCount; }
+
+      /// Live instance count of all Message-derived objects (leak indicator).
+      static std::atomic<long> sInstanceCount;
+      static long getInstanceCount() { return sInstanceCount.load(std::memory_order_relaxed); }
 
       /// facet for brief output to streams
       class Brief

src/libs/resiprocate/resip/stack/SipMessage.cxx

@@ -28,6 +28,8 @@ using namespace std;
 
 bool SipMessage::checkContentLength=true;
 
+std::atomic<long> SipMessage::sInstanceCount{0};
+
 SipMessage::SipMessage(const Tuple *receivedTransportTuple)
    : mIsDecorated(false),
      mIsBadAck200(false),     
@@ -51,6 +53,7 @@ SipMessage::SipMessage(const Tuple *receivedTransportTuple)
    // !bwc! TODO make this tunable
    mHeaders.reserve(16);
    clear();
+   ++sInstanceCount;
 }
 
 SipMessage::SipMessage(const SipMessage& from)
@@ -63,6 +66,7 @@ SipMessage::SipMessage(const SipMessage& from)
      mCreatedTime(Timer::getTimeMicroSec())
 {
    init(from);
+   ++sInstanceCount;
 }
 
 Message*
@@ -98,6 +102,7 @@ SipMessage::~SipMessage()
    }
 #endif
    freeMem();
+   --sInstanceCount;
 }
 
 void

src/libs/resiprocate/resip/stack/SipMessage.hxx

@@ -7,6 +7,7 @@
 #include <vector>
 #include <utility>
 #include <memory>
+#include <atomic>
 
 #include "resip/stack/Contents.hxx"
 #include "resip/stack/Headers.hxx"
@@ -154,6 +155,10 @@ class SipMessage : public TransactionMessage
 {
    public:
       RESIP_HeapCount(SipMessage);
+
+      /// Live instance count of SipMessage objects (leak indicator).
+      static std::atomic<long> sInstanceCount;
+      static long getInstanceCount() { return sInstanceCount.load(std::memory_order_relaxed); }
 #ifndef __SUNPRO_CC
       typedef std::list< std::pair<Data, HeaderFieldValueList*>, StlPoolAllocator<std::pair<Data, HeaderFieldValueList*>, PoolBase > > UnknownHeaders;
 #else