public StreamingOpusFile(Stream stream, bool leaveOpen = false)
{
_opusFile = new OggOpusFile(stream, false);
}
public SoundEffect(Stream inputStream, bool isOpus = false)
{
byte[] pcmData = null;
if (isOpus)
{
using (var opusFile = new OggOpusFile(inputStream)) {
if (opusFile.LinkCount > 1)
{
throw new NotSupportedException("Opus files with multiple links are not supported.");
}
_md = new SfxMetadata()
{
Bits = 16,
Rate = 48000,
Channels = opusFile.GetChannelCount(),
Length = (int)opusFile.GetPcmTotal(),
};
int valuesRead;
pcmData = new byte[sizeof(short) * _md.Channels * _md.Length];
short[] readBuffer = new short[5760 * 2];
using (var dataWriter = new BinaryWriter(new MemoryStream(pcmData))) {
while ((valuesRead = opusFile.Read(readBuffer, 0, readBuffer.Length) * _md.Channels) > 0)
{
for (int i = 0; i < valuesRead; i++)
{
dataWriter.Write(readBuffer[i]);
}
}
}
}
}
else
{
using (var s = inputStream) {
var tr = new TarReader(s);
while (tr.MoveNext(false))
{
switch (tr.FileInfo.FileName)
{
case "sound.bin":
var bytes = new byte[tr.FileInfo.SizeInBytes];
using (var ms = new MemoryStream(bytes)) {
tr.Read(ms);
ms.Position = 0;
using (var br = new BinaryReader(ms)) {
_md = SfxMetadata.Read(br);
}
}
break;
case "sound.pcm":
pcmData = new byte[tr.FileInfo.SizeInBytes];
tr.Read(new MemoryStream(pcmData));
break;
default:
throw new ContentException("Unrecognized sound file " + tr.FileInfo.FileName);
}
}
}
}
ALFormat format;
switch (_md.Channels)
{
case 1:
switch (_md.Bits)
{
case 8:
format = ALFormat.Mono8;
break;
case 16:
format = ALFormat.Mono16;
break;
case 32:
format = ALFormat.MonoFloat32Ext;
break;
default:
throw new NotSupportedException("Sounds must be 8, 16, or 32 bit.");
}
break;
case 2:
switch (_md.Bits)
{
case 8:
format = ALFormat.Stereo8;
break;
case 16:
format = ALFormat.Stereo16;
break;
case 32:
format = ALFormat.StereoFloat32Ext;
break;
default:
throw new NotSupportedException("Sounds must be 8, 16, or 32 bit.");
}
break;
default:
throw new NotSupportedException("Sound effects must be mono or stereo.");
}
_buffer = AL.GenBuffer();
AL.BufferData(_buffer, format, pcmData, pcmData.Length, _md.Rate);
}
