/*
* WaveFileFormat ReadMainFileHeader - 2004 July 28
* Read in the main file header. Not much more to say, really.
* For XML serialization purposes, I "correct" the dwFileLength
* field to describe the whole file's length.
*/
public riffChunk ReadMainFileHeader()
{
mainfile = new riffChunk();
mainfile.sGroupID = new string(reader.ReadChars(4));
mainfile.dwFileLength = reader.ReadUInt32() + 8;
mainfile.sRiffType = new string(reader.ReadChars(4));
return(mainfile);
}
public WaveFile(string filename)
{
reader = new WaveFileReader(filename);
maindata = reader.ReadMainFileHeader();
maindata.FileName = filename;
long chunkSize = 0;
string chunkName = null;
while (chunkName != "data" && reader.GetPosition() < (long)maindata.dwFileLength && reader.GetPosition() + chunkSize < maindata.dwFileLength)
{
chunkName = reader.GetChunkName();
switch (chunkName)
{
case "fmt ":
format = reader.ReadFormatHeader();
chunkSize = format.dwChunkSize;
break;
case "fact":
fact = reader.ReadFactHeader();
chunkSize = fact.dwChunkSize;
break;
case "data":
data = reader.ReadDataHeader();
chunkSize = data.dwChunkSize;
break;
default:
//This provides the required skipping of unsupported chunks.
// reader.AdvanceToNext();
chunkSize = 0;
break;
}
}
}