Added bug fix for properly setting the EZMicrophone's bufferByteSize

Author: syedhali

EZAudio/EZMicrophone.m

@@ -430,7 +430,9 @@ - (void)setAudioStreamBasicDescription:(AudioStreamBasicDescription)asbd
                           numberOfChannels:self.info->streamFormat.mChannelsPerFrame];
     }
 
-    // set new stream format
+    //
+    // Set new stream format
+    //
     self.info->streamFormat = asbd;
     [EZAudioUtilities checkResult:AudioUnitSetProperty(self.info->audioUnit,
                                                        kAudioUnitProperty_StreamFormat,
@@ -447,18 +449,21 @@ - (void)setAudioStreamBasicDescription:(AudioStreamBasicDescription)asbd
                                                        sizeof(asbd))
                         operation:"Failed to set stream format on output scope"];
 
-    // allocate float buffers
+    //
+    // Allocate scratch buffers
+    //
     UInt32 maximumBufferSize = [self maximumBufferSize];
     BOOL isInterleaved = [EZAudioUtilities isInterleaved:asbd];
     UInt32 channels = asbd.mChannelsPerFrame;
     self.floatConverter = [[EZAudioFloatConverter alloc] initWithInputFormat:asbd];
     self.info->floatData = [EZAudioUtilities floatBuffersWithNumberOfFrames:maximumBufferSize
                                                       numberOfChannels:channels];
     self.info->audioBufferList = [EZAudioUtilities audioBufferListWithNumberOfFrames:maximumBufferSize
-                                                               numberOfChannels:channels
-                                                                    interleaved:isInterleaved];
-    
-    // notify delegate
+                                                                    numberOfChannels:channels
+                                                                         interleaved:isInterleaved];
+    //
+    // Notify delegate
+    //
     if ([self.delegate respondsToSelector:@selector(microphone:hasAudioStreamBasicDescription:)])
     {
         [self.delegate microphone:self hasAudioStreamBasicDescription:asbd];
@@ -528,10 +533,14 @@ - (void)setDevice:(EZAudioDevice *)device
                         operation:"Couldn't set default device on I/O unit"];
 #endif
 
-    // store device
+    //
+    // Store device
+    //
     _device = device;
 
-    // notify delegate
+    //
+    // Notify delegate
+    //
     if ([self.delegate respondsToSelector:@selector(microphone:changedDevice:)])
     {
         [self.delegate microphone:self changedDevice:device];
@@ -603,15 +612,27 @@ static OSStatus EZAudioMicrophoneCallback(void                       *inRefCon,
     EZMicrophone *microphone = (__bridge EZMicrophone *)inRefCon;
     EZMicrophoneInfo *info = (EZMicrophoneInfo *)microphone.info;
 
-    // render audio into buffer
+    //
+    // Make sure the size of each buffer in the stored buffer array
+    // is properly set using the actual number of frames coming in!
+    //
+    for (int i = 0; i < info->audioBufferList->mNumberBuffers; i++) {
+        info->audioBufferList->mBuffers[i].mDataByteSize = inNumberFrames * info->streamFormat.mBytesPerFrame;
+    }
+    
+    //
+    // Render audio into buffer
+    //
     OSStatus result = AudioUnitRender(info->audioUnit,
                                       ioActionFlags,
                                       inTimeStamp,
                                       inBusNumber,
                                       inNumberFrames,
                                       info->audioBufferList);
 
-    // notify delegate of new buffer list to process
+    //
+    // Notify delegate of new buffer list to process
+    //
     if ([microphone.delegate respondsToSelector:@selector(microphone:hasBufferList:withBufferSize:withNumberOfChannels:)])
     {
         [microphone.delegate microphone:microphone
@@ -620,10 +641,14 @@ static OSStatus EZAudioMicrophoneCallback(void                       *inRefCon,
                    withNumberOfChannels:info->streamFormat.mChannelsPerFrame];
     }
 
-    // notify delegate of new float data processed
+    //
+    // Notify delegate of new float data processed
+    //
     if ([microphone.delegate respondsToSelector:@selector(microphone:hasAudioReceived:withBufferSize:withNumberOfChannels:)])
     {
-        // convert to float
+        //
+        // Convert to float
+        //
         [microphone.floatConverter convertDataFromAudioBufferList:info->audioBufferList
                                                withNumberOfFrames:inNumberFrames
                                                    toFloatBuffers:info->floatData];