AFV initial commit

src/blacksound/sampleprovider/bufferedwaveprovider.cpp

@@ -0,0 +1,34 @@
+#include "bufferedwaveprovider.h"
+
+#include <QDebug>
+
+BufferedWaveProvider::BufferedWaveProvider(const QAudioFormat &format, QObject *parent) :
+    ISampleProvider(parent)
+{
+    // Set buffer size to 10 secs
+    m_maxBufferSize = format.bytesForDuration(10 * 1000 * 1000);
+}
+
+void BufferedWaveProvider::addSamples(const QVector<qint16> &samples)
+{
+    int delta = m_audioBuffer.size() + samples.size() - m_maxBufferSize;
+    if(delta > 0)
+    {
+        m_audioBuffer.remove(0, delta);
+    }
+    m_audioBuffer.append(samples);
+}
+
+int BufferedWaveProvider::readSamples(QVector<qint16> &samples, qint64 count)
+{
+    qint64 len = qMin(count, static_cast<qint64>(m_audioBuffer.size()));
+    samples = m_audioBuffer.mid(0, len);
+    // if (len != 0) qDebug() << "Reading" << count << "samples." << m_audioBuffer.size() << "currently in the buffer.";
+    m_audioBuffer.remove(0, len);
+    return len;
+}
+
+void BufferedWaveProvider::clearBuffer()
+{
+    m_audioBuffer.clear();
+}