public static bool StreamChunk(IntPtr vFPtr, out PcmData result)
{
MemoryStream dataStream = null;
bool notEof = StreamChunk(vFPtr, ref dataStream, out result.channelCount, out result.sampleRate);
result.data = dataStream != null?dataStream.ToArray() : new byte[0];
return(notEof);
}
public static bool StreamChunk(VorbisStreamHandle handle, out PcmData pcm, uint bufferSize = DefaultBufferSize)
{
pcm.dataLength = 0;
pcm.channelCount = handle.VorbisInstance.Channels;
pcm.sampleRate = handle.VorbisInstance.SampleRate;
bool eof = false;
float[] buffer = new float[bufferSize];
while (pcm.dataLength < buffer.Length)
{
int samplesRead;
lock (readMutex)
{
samplesRead = handle.VorbisInstance.ReadSamples(buffer, pcm.dataLength, buffer.Length - pcm.dataLength);
}
if (samplesRead > 0)
{
pcm.dataLength += samplesRead;
}
else
{
eof = true;
break;
}
}
pcm.data = new short[pcm.dataLength];
CastBuffer(buffer, pcm.data, 0, pcm.dataLength);
return pcm.dataLength > 0 && !eof;
}
public static bool ReadAll(VorbisStreamHandle handle, out PcmData pcm)
{
pcm.channelCount = handle.VorbisInstance.Channels;
pcm.sampleRate = handle.VorbisInstance.SampleRate;
pcm.dataLength = 0;
List<float[]> allBuffers = new List<float[]>();
bool eof = false;
int totalSamplesRead = 0;
while (!eof)
{
float[] buffer = new float[DefaultBufferSize];
int bufferSamplesRead = 0;
while(bufferSamplesRead < buffer.Length)
{
int samplesRead;
lock (readMutex)
{
samplesRead = handle.VorbisInstance.ReadSamples(buffer, pcm.dataLength, buffer.Length - pcm.dataLength);
}
if (samplesRead > 0)
{
bufferSamplesRead += samplesRead;
}
else
{
eof = true;
break;
}
}
allBuffers.Add(buffer);
totalSamplesRead += bufferSamplesRead;
}
if (totalSamplesRead > 0)
{
pcm.dataLength = totalSamplesRead;
pcm.data = new short[totalSamplesRead];
int offset = 0;
for (int i = 0; i < allBuffers.Count; i++)
{
int len = Math.Min(pcm.data.Length - offset, allBuffers[i].Length);
CastBuffer(allBuffers[i], pcm.data, offset, len);
offset += len;
}
return !eof;
}
else
{
pcm.data = new short[0];
return false;
}
}
public static bool StreamChunk(IntPtr vFPtr, out PcmData result)
{
MemoryStream dataStream = null;
bool notEof = StreamChunk(vFPtr, ref dataStream, out result.channelCount, out result.sampleRate);
result.data = dataStream != null ? dataStream.ToArray() : new byte[0];
return notEof;
}