Improve audio and midi support.

src/audio/AudioSample.cpp

@@ -0,0 +1,47 @@
+#include "AudioSample.h"
+
+AudioSample::AudioSample()
+{
+
+}
+
+std::unique_ptr<AudioSample> AudioSample::Create()
+{
+    return std::make_unique<AudioSample>();
+}
+
+std::size_t AudioSample::GetNumChannels() const
+{
+    return mData.size();
+}
+
+unsigned AudioSample::GetSampleRate() const
+{
+    return mSampleRate;
+}
+
+unsigned AudioSample::GetBitDepth() const
+{
+    return mBitDepth;
+}
+
+void AudioSample::SetChannelData(const std::vector<short>& data, std::size_t channel)
+{
+    if (mData.size() == channel)
+    {
+        mData.push_back(data);
+    }
+    else if(mData.size() > channel)
+    {
+        mData[channel] = data;
+    }
+}
+
+std::vector<short> AudioSample::GetChannelData(std::size_t channel) const
+{
+    if(mData.size() > channel)
+    {
+        return mData[channel];
+    }
+    return std::vector<short>();
+}