bug in synchronization of audio data with stream

Author: pschatzmann

src/sam_arduino.h

@@ -59,6 +59,13 @@ class SAM {
             setVoice(Sam);
         }
 
+        /// Constructor - for output with a SAMOutputBase class
+        SAM(SAMOutputBase &out){
+            SAM_LOG("SAM SAMOutputBase");
+            setOutput(&out);
+            setVoice(Sam);
+        }
+
         /// Constructor - for output with a SAMOutputBase class
         SAM(SAMOutputBase *out){
             SAM_LOG("SAM SAMOutputBase");
@@ -209,11 +216,20 @@ class SAM {
             true16Bits = active;
         }
 
-        /// Provides the sample rate (22050)
+        /// Provides the sample rate (44100)
         static int sampleRate() {
             return SAMOutputBase::sampleRate();
         }
 
+
+        int bitsPerSample() {
+            return bits_per_sample;
+        }
+
+        int channels() {
+            return channel_count;
+        }
+
     protected:
         SAMOutputBase *arduino_output=nullptr;
         int bits_per_sample = 8;
@@ -232,12 +248,16 @@ class SAM {
             SAM_LOG("setOutput");
             arduino_output = out;    
 
-            // force output definition as defined in arduino_output
+            // synchronize output definition with arduino_output
             if (arduino_output->channels()!=-1){
                 this->channel_count = arduino_output->channels();
+            } else {
+                arduino_output->setChannels(channel_count);
             }
             if (arduino_output->bitsPerSample()!=-1){
                 this->bits_per_sample = arduino_output->bitsPerSample();
+            } else {
+                arduino_output->setBitsPerSample(bits_per_sample);
             }
             SAM_LOG("-> channel_count: %d",this->channel_count);
             SAM_LOG("-> bits_per_sample: %d",this->bits_per_sample);

src/sam_arduino_out.h

@@ -24,7 +24,7 @@ typedef void (*sam_callback)(size_t size, void *values);
 
 // Application Callback
 static void OutputByteCallback(void *cbdata, unsigned char b);
-static uint32_t SAM_sample_rate = 44100;
+static uint32_t SAM_sample_rate = 22050;
 /**
  * @brief Base Output Class with common functionality
  *