* #8968: fix potential memory leak in audiorecord

daemon/src/audio/audiorecord.cpp

@@ -57,24 +57,16 @@ AudioRecord::AudioRecord() : fileHandle_(NULL)
     , sndSmplRate_(8000)
     , nbSamplesMic_(0)
     , nbSamplesSpk_(0)
-    , nbSamplesMax_(3000)
     , recordingEnabled_(false)
-    , mixBuffer_(new SFLDataFormat[nbSamplesMax_])
-    , micBuffer_(new SFLDataFormat[nbSamplesMax_])
-    , spkBuffer_(new SFLDataFormat[nbSamplesMax_])
+    , mixBuffer_()
+    , micBuffer_()
+    , spkBuffer_()
     , filename_()
     , savePath_()
 {
     createFilename();
 }
 
-AudioRecord::~AudioRecord()
-{
-    delete [] mixBuffer_;
-    delete [] micBuffer_;
-    delete [] spkBuffer_;
-}
-
 void AudioRecord::setSndSamplingRate(int smplRate)
 {
     sndSmplRate_ = smplRate;

daemon/src/audio/audiorecord.h

@@ -33,6 +33,7 @@
 
 #include <string>
 #include <cstdlib>
+#include <memory>
 
 #include "global.h"
 #include "noncopyable.h"
@@ -44,8 +45,6 @@ class AudioRecord {
 
         AudioRecord();
 
-        ~AudioRecord();
-
         void setSndSamplingRate(int smplRate);
         /**
          * Get the recrding sampling rate
@@ -206,7 +205,7 @@ class AudioRecord {
         /**
          * Maximum number of samples
          */
-        int nbSamplesMax_;
+        static const int NB_SAMPLES_MAX = 3000;
 
         /**
          * Recording flage
@@ -216,17 +215,17 @@ class AudioRecord {
         /**
          * Buffer used for mixing two channels
          */
-        SFLDataFormat* mixBuffer_;
+        SFLDataFormat mixBuffer_[NB_SAMPLES_MAX];
 
         /**
          * Buffer used to copy mic info
          */
-        SFLDataFormat* micBuffer_;
+        SFLDataFormat micBuffer_[NB_SAMPLES_MAX];
 
         /**
          * Buffer used to copy spkr info
          */
-        SFLDataFormat* spkBuffer_;
+        SFLDataFormat spkBuffer_[NB_SAMPLES_MAX];
 
         /**
          * Filename for this recording