From: wittend99 <wittend99@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Tue, 15 May 2012 13:44:23 +0000 (+0000)
Subject: git-svn-id: https://svn.code.sf.net/p/freetel/code@465 01035d8c-6547-0410-b346-abe4f9... 
X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=5ef0d64ce4010efe7ebb650f946b376675257b3b;p=freetel-svn-tracking.git

git-svn-id: https://svn.code.sf.net/p/freetel/code@465 01035d8c-6547-0410-b346-abe4f91aad63
---

diff --git a/fdmdv2/thread_audio.cpp b/fdmdv2/thread_audio.cpp
new file mode 100644
index 00000000..889bf732
--- /dev/null
+++ b/fdmdv2/thread_audio.cpp
@@ -0,0 +1,56 @@
+//==========================================================================
+// Name:            thread_audio.cpp
+//
+// Purpose:         Implements simple wxWidgets application with GUI.
+// Created:         May 11, 2012
+// Initial author:  David Witten
+// License:         BSD License (other licenses may apply to other
+//                  components of this project)
+//==========================================================================
+#include "thread_audio.h"
+
+// declare a new type of event, to be used by our MyThread class:
+wxDECLARE_EVENT(wxEVT_COMMAND_AUDIOTHREAD_COMPLETED, wxThreadEvent);
+wxDECLARE_EVENT(wxEVT_COMMAND_AUDIOTHREAD_UPDATE, wxThreadEvent);
+
+#include "stdio.h"
+#include "portaudio.h"
+
+/* This will be called asynchronously by the PortAudio engine. */
+static int audioCallback( void *inputBuffer, void *outputBuffer,
+
+unsigned long framesPerBuffer, PaTimestamp outTime, void *userData )
+{
+    float *out = (float *) outputBuffer;
+    float *in = (float *) inputBuffer;
+    float leftInput, rightInput;
+    unsigned int i;
+
+    if( inputBuffer == NULL )
+    {
+        return 0;
+    }
+    /* Read input buffer, process data, and fill output buffer. */
+    for(i = 0; i < framesPerBuffer; i++)
+    {
+        leftInput = *in++;                          /* Get interleaved samples from input buffer. */
+        rightInput = *in++;
+        *out++ = leftInput * rightInput;            /* ring modulation */
+        *out++ = 0.5f * (leftInput + rightInput);   /* mixing */
+    }
+    return 0;
+}
+/* Use a PortAudioStream to process audio data. */
+int main(void)
+{
+    PortAudioStream *stream;
+    Pa_Initialize();
+    //Pa_OpenDefaultStream(&stream, 2, 2, /* stereo input and output */ paFloat32, 44100.0, 64, 0, /* 64 frames per buffer, let PA determine numBuffers */audioCallback, NULL );
+    Pa_OpenDefaultStream(&stream, 2, 2, paFloat32, 44100.0, 64, 0, audioCallback, NULL );
+    Pa_StartStream( stream );
+    Pa_Sleep( 10000 );                              /* Sleep for 10 seconds while processing. */
+    Pa_StopStream( stream );
+    Pa_CloseStream( stream );
+    Pa_Terminate();
+    return 0;
+}