protected internal override SoundEffect Read(ContentReader input, SoundEffect existingInstance)
{
// NXB format for SoundEffect...
//
// Byte [format size] Format WAVEFORMATEX structure
// UInt32 Data size
// Byte [data size] Data Audio waveform data
// Int32 Loop start In bytes (start must be format block aligned)
// Int32 Loop length In bytes (length must be format block aligned)
// Int32 Duration In milliseconds
// WAVEFORMATEX structure...
//
//typedef struct {
// WORD wFormatTag; // byte[0] +2
// WORD nChannels; // byte[2] +2
// DWORD nSamplesPerSec; // byte[4] +4
// DWORD nAvgBytesPerSec; // byte[8] +4
// WORD nBlockAlign; // byte[12] +2
// WORD wBitsPerSample; // byte[14] +2
// WORD cbSize; // byte[16] +2
//} WAVEFORMATEX;
byte[] header = input.ReadBytes(input.ReadInt32());
byte[] data = input.ReadBytes(input.ReadInt32());
int loopStart = input.ReadInt32();
int loopLength = input.ReadInt32();
int num = input.ReadInt32();
#if DIRECTX
var count = data.Length;
var format = (int)BitConverter.ToUInt16(header, 0);
var sampleRate = (int)BitConverter.ToUInt16(header, 4);
var channels = BitConverter.ToUInt16(header, 2);
//var avgBPS = (int)BitConverter.ToUInt16(header, 8);
var blockAlignment = (int)BitConverter.ToUInt16(header, 12);
//var bps = (int)BitConverter.ToUInt16(header, 14);
SharpDX.Multimedia.WaveFormat waveFormat;
if (format == 1)
{
waveFormat = new SharpDX.Multimedia.WaveFormat(sampleRate, channels);
}
else if (format == 2)
{
waveFormat = new SharpDX.Multimedia.WaveFormatAdpcm(sampleRate, channels, blockAlignment);
}
else
{
throw new NotSupportedException("Unsupported wave format!");
}
return(new SoundEffect(waveFormat, data, 0, count, loopStart, loopLength)
{
Name = input.AssetName,
});
#else
if (header[0] == 2 && header[1] == 0)
{
// We've found MSADPCM data! Let's decode it here.
using (MemoryStream origDataStream = new MemoryStream(data))
{
using (BinaryReader reader = new BinaryReader(origDataStream))
{
byte[] newData = MSADPCMToPCM.MSADPCM_TO_PCM(
reader,
header[2],
(short)((header[12] / header[2]) - 22)
);
data = newData;
}
}
// This is PCM data now!
header[0] = 1;
}
int sampleRate = (
(header[4]) +
(header[5] << 8) +
(header[6] << 16) +
(header[7] << 24)
);
return(new SoundEffect(
input.AssetName,
data,
sampleRate,
(header[2] == 2) ? AudioChannels.Stereo : AudioChannels.Mono,
loopStart,
loopLength
));
#endif
}
protected internal override SoundEffect Read(ContentReader input, SoundEffect existingInstance)
{
// NXB format for SoundEffect...
//
// Byte [format size] Format WAVEFORMATEX structure
// UInt32 Data size
// Byte [data size] Data Audio waveform data
// Int32 Loop start In bytes (start must be format block aligned)
// Int32 Loop length In bytes (length must be format block aligned)
// Int32 Duration In milliseconds
// WAVEFORMATEX structure...
//
//typedef struct {
// WORD wFormatTag; // byte[0] +2
// WORD nChannels; // byte[2] +2
// DWORD nSamplesPerSec; // byte[4] +4
// DWORD nAvgBytesPerSec; // byte[8] +4
// WORD nBlockAlign; // byte[12] +2
// WORD wBitsPerSample; // byte[14] +2
// WORD cbSize; // byte[16] +2
//} WAVEFORMATEX;
byte[] header = input.ReadBytes(input.ReadInt32());
byte[] data = input.ReadBytes(input.ReadInt32());
int loopStart = input.ReadInt32();
int loopLength = input.ReadInt32();
int num = input.ReadInt32();
#if WINRT
var count = data.Length;
var format = (int)BitConverter.ToUInt16(header, 0);
var sampleRate = (int)BitConverter.ToUInt16(header, 4);
var channels = BitConverter.ToUInt16(header, 2);
//var avgBPS = (int)BitConverter.ToUInt16(header, 8);
var blockAlignment = (int)BitConverter.ToUInt16(header, 12);
//var bps = (int)BitConverter.ToUInt16(header, 14);
SharpDX.Multimedia.WaveFormat waveFormat;
if (format == 1)
{
waveFormat = new SharpDX.Multimedia.WaveFormat(sampleRate, channels);
}
else if (format == 2)
{
waveFormat = new SharpDX.Multimedia.WaveFormatAdpcm(sampleRate, channels, blockAlignment);
}
else
{
throw new NotImplementedException("Unsupported wave format!");
}
return(new SoundEffect(waveFormat, data, 0, count, loopStart, loopLength)
{
Name = input.AssetName,
});
#else
byte[] soundData = null;
// Proper use of "using" corectly disposes of BinaryWriter which in turn disposes the underlying stream
MemoryStream mStream = new MemoryStream(20 + header.Length + 8 + data.Length);
using (BinaryWriter writer = new BinaryWriter(mStream))
{
writer.Write("RIFF".ToCharArray());
writer.Write((int)(20 + header.Length + data.Length));
writer.Write("WAVE".ToCharArray());
//header can be written as-is
writer.Write("fmt ".ToCharArray());
writer.Write(header.Length);
writer.Write(header);
writer.Write("data".ToCharArray());
writer.Write((int)data.Length);
writer.Write(data);
// Copy the data to an array before disposing the stream
soundData = mStream.ToArray();
}
if (soundData == null)
{
throw new ContentLoadException("Failed to load SoundEffect");
}
return(new SoundEffect(input.AssetName, soundData));
#endif
}
