/// <summary>Read in an MThd chunk from the stream.</summary>
/// <param name="inputStream">The stream from which to read the MThd chunk.</param>
/// <returns>The MThd chunk read.</returns>
public static MThdChunkHeader Read(Stream inputStream)
{
Validate.NonNull("inputStream", inputStream);
// Read in a header from the stream and validate it
ValidateHeader(ChunkHeader.Read(inputStream));
// Read in the format, number of tracks, and the division, each a two-byte value
int format = ReadTwoByteValue(inputStream);
int numTracks = ReadTwoByteValue(inputStream);
int division = ReadTwoByteValue(inputStream);
// Create a new MThd header and return it
return(new MThdChunkHeader((Format)format, numTracks, division));
}
/// <summary>Read in an MTrk chunk from the stream.</summary>
/// <param name="inputStream">The stream from which to read the MTrk chunk.</param>
/// <returns>The MTrk chunk read.</returns>
public static MTrkChunkHeader Read(Stream inputStream)
{
Validate.NonNull("inputStream", inputStream);
// Read in a header from the stream and validate it
ChunkHeader header = ChunkHeader.Read(inputStream);
ValidateHeader(header);
// Read in the amount of data specified in the chunk header
byte[] data = new byte[header.Length];
int bytesRead;
for (int offset = 0; offset < data.Length; offset += bytesRead)
{
if ((bytesRead = inputStream.Read(data, offset, data.Length - offset)) < 0)
{
throw new InvalidOperationException("Not enough data in stream to fill MTrk chunk.");
}
}
// Return the new chunk
return(new MTrkChunkHeader(data));
}