//TODO: change all of this to byter calls
/// <summary>
/// </summary>
public static WaveChunk MakeFMT(uint dwSize)
{
if (dwSize < 16)
{
dwSize = 16; // dwSize Is 16 Or Else More If Has Extra
}
if (dwSize > 0xFFFF + 18)
{
dwSize = 0xFFFF + 18; //TODO: fix this??
}
if (dwSize % 2 == 1)
{
dwSize++; //add padding for required word-alignment
}
WaveChunk chunkNew = new WaveChunk();
chunkNew.sID = "fmt ";
chunkNew.dwSize = dwSize;
if (dwSize > 18)
{
chunkNew.wExtra = (ushort)(dwSize - 18);
chunkNew.byarrData = new byte[(int)chunkNew.wExtra];
}
else
{
chunkNew.wExtra = 0;
chunkNew.byarrExtra = null;
}
return(chunkNew);
}
/// <summary>
/// </summary>
public static WaveChunk MakeSLNT(uint dwSilentSamples)
{
WaveChunk chunkNew = new WaveChunk();
chunkNew.sID = "slnt";
chunkNew.dwSize = 4;
chunkNew.dwSilentSamples = dwSilentSamples;
return(chunkNew);
}
/// <summary>
/// </summary>
public static WaveChunk MakeRIFF(uint dwFileSizeMinus8)
{
WaveChunk chunkNew = new WaveChunk();
chunkNew.sID = "RIFF";
chunkNew.dwSize = dwFileSizeMinus8;
//chunkNew.sRiffType="WAVE";
return(chunkNew);
}
/// <summary>
/// Only contains format-dependent data for compressed wave files.
/// NOT required unless Wave file is compressed.
/// </summary>
public static WaveChunk MakeFACT(uint dwSize, uint dwSamples)
{
/*
* A fact chunk stores compression code dependant information
* about the contents of the Wave file. It is required by all
* compressed WAVE formats and if the waveform data is contained
* inside a "wavl" LIST chunk, but is not required for the
* uncompressed PCM WAVE format files (compression code 1) that
* contain the waveform data inside a "data" chunk.
*
* -The Sonic Spot
*/
WaveChunk chunkNew = new WaveChunk();
chunkNew.sID = "fact";
chunkNew.dwSize = dwSize;
return(chunkNew);
}
/// <summary>
/// A wave list chunk is used to specify several alternating "slnt" and "data" chunks.
/// slnt stands for silent, and the slnt chunks are used to save space.
/// </summary>
public static WaveChunk MakeWAVL(int iChunks, uint[] dwSizes, bool bSilentChunkFirst)
{
if (iChunks == 0)
{
return(null); //TODO: report error;
}
if (dwSizes == null)
{
return(null); //TODO: report error;
}
if (iChunks != dwSizes.Length)
{
return(null); //TODO: report error
}
WaveChunk chunkNew = new WaveChunk();
chunkNew.sID = "wavl";
chunkNew.dwSize = 0; //incremented below
chunkNew.chunkarrSub = new WaveChunk[iChunks];
while (iChunks < 0)
{
if (bSilentChunkFirst)
{
//TODO: finish this - silent chunk
bSilentChunkFirst = false;
}
else
{
//TODO: finish this - data chunk
bSilentChunkFirst = true;
}
iChunks--;
}
return(chunkNew);
}
