/* -------------------------------------------------------------------------- */
// No explicit destructors with C#
/* -------------------------------------------------------------------------- */
public bool ReadFromFile(String FileName)
{
FileStream fs = null;
BinaryReader source = null;
char[] signatureChunk = new char[4];
tta_header ttaheader = new tta_header();
long TagSize;
bool result = false;
FResetData();
// load tags first
FID3v2.ReadFromFile(FileName);
FID3v1.ReadFromFile(FileName);
FAPEtag.ReadFromFile(FileName);
// calulate total tag size
TagSize = 0;
if (FID3v1.Exists) TagSize += 128;
if (FID3v2.Exists) TagSize += FID3v2.Size;
if (FAPEtag.Exists) TagSize += FAPEtag.Size;
// begin reading data from file
try
{
fs = new FileStream(FileName,FileMode.Open, FileAccess.Read);
fs.Lock(0,fs.Length);
source = new BinaryReader(fs);
// seek past id3v2-tag
if ( FID3v2.Exists )
{
fs.Seek(FID3v2.Size, SeekOrigin.Begin);
}
signatureChunk = source.ReadChars(4);
if ( Utils.StringEqualsArr("TTA1",signatureChunk) )
{
// start looking for chunks
ttaheader.Reset();
ttaheader.AudioFormat = source.ReadUInt16();
ttaheader.NumChannels = source.ReadUInt16();
ttaheader.BitsPerSample = source.ReadUInt16();
ttaheader.SampleRate = source.ReadUInt32();
ttaheader.DataLength = source.ReadUInt32();
ttaheader.CRC32 = source.ReadUInt32();
FFileSize = fs.Length;
FValid = true;
FAudioFormat = ttaheader.AudioFormat;
FChannels = ttaheader.NumChannels;
FBits = ttaheader.BitsPerSample;
FSampleRate = ttaheader.SampleRate;
FSamples = ttaheader.DataLength;
FCRC32 = ttaheader.CRC32;
FBitrate = (double)FFileSize * 8 / (FSamples / FSampleRate) / 1000;
FDuration = (double)ttaheader.DataLength / ttaheader.SampleRate;
result = true;
}
}
catch (Exception e)
{
System.Console.WriteLine(e.StackTrace);
result = false;
}
if (fs != null)
{
fs.Unlock(0,fs.Length);
if (source != null) source.Close();
}
return result;
}
/* -------------------------------------------------------------------------- */
// No explicit destructors with C#
/* -------------------------------------------------------------------------- */
public bool ReadFromFile(String FileName)
{
FileStream fs = null;
BinaryReader source = null;
char[] signatureChunk = new char[4];
tta_header ttaheader = new tta_header();
long TagSize;
bool result = false;
FResetData();
// load tags first
FID3v2.ReadFromFile(FileName);
FID3v1.ReadFromFile(FileName);
FAPEtag.ReadFromFile(FileName);
// calulate total tag size
TagSize = 0;
if (FID3v1.Exists)
{
TagSize += 128;
}
if (FID3v2.Exists)
{
TagSize += FID3v2.Size;
}
if (FAPEtag.Exists)
{
TagSize += FAPEtag.Size;
}
// begin reading data from file
try
{
fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);
fs.Lock(0, fs.Length);
source = new BinaryReader(fs);
// seek past id3v2-tag
if (FID3v2.Exists)
{
fs.Seek(FID3v2.Size, SeekOrigin.Begin);
}
signatureChunk = source.ReadChars(4);
if (Utils.StringEqualsArr("TTA1", signatureChunk))
{
// start looking for chunks
ttaheader.Reset();
ttaheader.AudioFormat = source.ReadUInt16();
ttaheader.NumChannels = source.ReadUInt16();
ttaheader.BitsPerSample = source.ReadUInt16();
ttaheader.SampleRate = source.ReadUInt32();
ttaheader.DataLength = source.ReadUInt32();
ttaheader.CRC32 = source.ReadUInt32();
FFileSize = fs.Length;
FValid = true;
FAudioFormat = ttaheader.AudioFormat;
FChannels = ttaheader.NumChannels;
FBits = ttaheader.BitsPerSample;
FSampleRate = ttaheader.SampleRate;
FSamples = ttaheader.DataLength;
FCRC32 = ttaheader.CRC32;
FBitrate = (double)FFileSize * 8 / (FSamples / FSampleRate) / 1000;
FDuration = (double)ttaheader.DataLength / ttaheader.SampleRate;
result = true;
}
}
catch (Exception e)
{
System.Console.WriteLine(e.StackTrace);
result = false;
}
if (fs != null)
{
fs.Unlock(0, fs.Length);
if (source != null)
{
source.Close();
}
}
return(result);
}
