internal void LoadSoundInMemory()
{
if (PreloadedBuffer.Ptr != IntPtr.Zero)
{
return;
}
using (var soundStream = FileProvider.OpenStream(CompressedDataUrl, VirtualFileMode.Open, VirtualFileAccess.Read, VirtualFileShare.Read, StreamFlags.Seekable))
using (var decoder = new Celt(SampleRate, CompressedSoundSource.SamplesPerFrame, Channels, true))
{
var reader = new BinarySerializationReader(soundStream);
var samplesPerPacket = CompressedSoundSource.SamplesPerFrame * Channels;
PreloadedBuffer = AudioLayer.BufferCreate(samplesPerPacket * NumberOfPackets * sizeof(short));
var memory = new UnmanagedArray <short>(samplesPerPacket * NumberOfPackets);
var offset = 0;
var outputBuffer = new short[samplesPerPacket];
for (var i = 0; i < NumberOfPackets; i++)
{
var len = reader.ReadInt16();
var compressedBuffer = reader.ReadBytes(len);
var samplesDecoded = decoder.Decode(compressedBuffer, len, outputBuffer);
memory.Write(outputBuffer, offset, 0, samplesDecoded * Channels);
offset += samplesDecoded * Channels * sizeof(short);
}
AudioLayer.BufferFill(PreloadedBuffer, memory.Pointer, memory.Length * sizeof(short), SampleRate, Channels == 1);
memory.Dispose();
}
}
protected override void InitializeInternal()
{
if (soundStreamUrl != null)
{
compressedSoundStream = fileProvider.OpenStream(soundStreamUrl, VirtualFileMode.Open, VirtualFileAccess.Read, VirtualFileShare.Read, StreamFlags.Seekable);
decoder = new Celt(sampleRate, SamplesPerFrame, channels, true);
compressedBuffer = new byte[maxCompressedSize];
reader = new BinarySerializationReader(compressedSoundStream);
base.InitializeInternal();
}
}
