/// <summary>
/// Return file crc of the specified file
/// </summary>
public static string GetFileCRC(string filename)
{
if (!FileEx.Exists(filename))
{
return("");
}
Fesersoft.Hashing.crc32 crc32 = new Fesersoft.Hashing.crc32();
using (FileStreamEx stmcheck = FileEx.OpenRead(filename))
{
uint crchash = (uint)crc32.CRC(stmcheck);
stmcheck.Close();
return(ConvertToHex(crchash));
}
}
public static string GetFileMD5(string filename)
{
if (!FileEx.Exists(filename))
{
return("");
}
MD5CryptoServiceProvider csp = new MD5CryptoServiceProvider();
using (FileStreamEx stmcheck = FileEx.OpenRead(filename))
{
byte[] hash = csp.ComputeHash(stmcheck);
stmcheck.Close();
return(BitConverter.ToString(hash).Replace("-", "").ToLower());
}
}
/// <summary>
/// Copy directory or file, take full path of source and dest as parameter.
/// </summary>
public static void CopyFile(string source, string dest, FileCancelDelegate cancel)
{
using (FileStreamEx srcStream = FileEx.OpenRead(source))
{
byte[] buffer = new byte[Math.Min(1024 * 1024 * 32, srcStream.Length)]; //32MB
int readCount;
ushort completePercent = 0;
long completeCount = 0;
using (FileStreamEx destStream = FileEx.Create(dest))
{
while ((readCount = srcStream.Read(buffer, 0, buffer.Length)) > 0 && !IsCancelTriggered(cancel, completePercent))
{
completeCount += readCount;
destStream.Write(buffer, 0, readCount);
completePercent = srcStream.Length == 0 ? (ushort)100 : (ushort)((float)completeCount / (float)srcStream.Length * 100.0);
}
destStream.Flush();
destStream.Close();
}
srcStream.Close();
}
}
private void SaveRestOfFile(int StartIndex, FileStreamEx Orgin,
FileStreamEx Temp, int Ver)
{
Orgin.Seek(StartIndex, SeekOrigin.Begin);
byte[] Buf = new byte[Orgin.Length - StartIndex];
Orgin.Read(Buf, 0, Buf.Length);
Temp.Write(Buf, 0, Buf.Length);
Orgin.Close();
Temp.Close();
if (Ver != 0)
SetMinorVersion(Ver);
File.Delete(Orgin.Name);
string FinallyName = Temp.Name.Remove(Temp.Name.Length - 5);
File.Move(Temp.Name, FinallyName);
_FilePath = FinallyName;
}
/// <summary>
/// Load ID3 information from file
/// </summary>
/// <exception cref="FileNotFoundException">File Not Found</exception>
public void Load()
{
FileStreamEx ID3File = new FileStreamEx(_FilePath, FileMode.Open);
if (!ID3File.HaveID3v2()) // If file don't contain ID3v2 exit function
{
_HaveTag = false;
ID3File.Close();
return;
}
_ver = ID3File.ReadVersion(); // Read ID3v2 version
_Flags = (ID3v2Flags)ID3File.ReadByte();
// Extended Header Must Read Here
ReadFrames(ID3File, ID3File.ReadSize());
ID3File.Close();
_HaveTag = true;
}
/// <summary>
/// Save ID3v1 information to file
/// </summary>
public void Save()
{
FileStreamEx fs = new FileStreamEx(_FilePath, FileMode.Open);
bool HTag = fs.HaveID3v1();
if (HTag && !_HaveTag) // just delete ID3
fs.SetLength(fs.Length - 128);
else if (!HTag && _HaveTag)
{
fs.Seek(0, SeekOrigin.End);
fs.Write(GetTagBytes, 0, 128);
}
else if (HTag && _HaveTag)
{
fs.Seek(-128, SeekOrigin.End);
fs.Write(GetTagBytes, 0, 128);
}
fs.Close();
}
/// <summary>
/// Load ID3v1 information from file
/// </summary>
public void Load()
{
FileStreamEx FS = new FileStreamEx(_FilePath, FileMode.Open);
if (!FS.HaveID3v1())
{
FS.Close();
_HaveTag = false;
return;
}
_Title = FS.ReadText(30, TextEncodings.Ascii);
FS.Seek(-95, SeekOrigin.End);
_Artist = FS.ReadText(30, TextEncodings.Ascii);
FS.Seek(-65, SeekOrigin.End);
_Album = FS.ReadText(30, TextEncodings.Ascii);
FS.Seek(-35, SeekOrigin.End);
_Year = FS.ReadText(4, TextEncodings.Ascii);
FS.Seek(-31, SeekOrigin.End);
_Comment = FS.ReadText(28, TextEncodings.Ascii);
FS.Seek(-2, SeekOrigin.End);
_TrackNumber = FS.ReadByte();
_Genre = FS.ReadByte();
FS.Close();
_HaveTag = true;
}
