public id3v2FrameHeader(byte[] header)
{
if (header.Length == 10)
{
try
{
byte[] t_id = new byte[4];
byte[] t_size = new byte[4];
for (int i = 0; i < 4; i++)
{
t_id[i] = header[i];
t_size[i] = header[i + 4];
}
if (t_size[0] == 0)
{
FrameSize = Id3Read.BytesToInt(t_size);
if (FrameSize != 0 && FrameSize < 1000000)
{
FrameID = Id3Read.ASCIIByteArrayToStr(t_id);
//Flags
FrameAlterPreservation = (header[8] & 64) == 64 ? true : false;
FileAlterPreservation = (header[8] & 32) == 32 ? true : false;
ReadOnly = (header[8] & 16) == 16 ? true : false;
GroupIdentity = (header[9] & 64) == 64 ? true : false;
Compressed = (header[9] & 8) == 8 ? true : false;
Encrypted = (header[9] & 4) == 4 ? true : false;
Unsynchronised = (header[9] & 2) == 2 ? true : false;
DataLengthIdentifier = (header[9] & 1) == 1 ? true : false;
FrameOk = true;
}
else
{
FrameOk = false;
}
}
else
{
FrameOk = false;
}
}
catch (Exception e)
{
FrameOk = false;
}
}
else
{
FrameOk = false;
}
}
public id3v2Frame(BinaryReader br)
{
FrameHeader = new id3v2FrameHeader(br.ReadBytes(10));
if (FrameHeader.FrameOk)
{
FrameID = FrameHeader.FrameID;
try
{
//byte enc = br.ReadByte();
//if (enc == 0 || 1 == 1)
//{
byte encoding = br.ReadByte();
switch (encoding)
{
case 0:
data = br.ReadBytes(FrameHeader.FrameSize - 1);
FrameData = Id3Read.ASCIIByteArrayToStr(data).TrimEnd(paddingchars).TrimStart(paddingchars);
break;
case 1:
data = br.ReadBytes(FrameHeader.FrameSize - 1);
FrameData = Id3Read.UNICODEByteArrayToStr(data).TrimEnd(paddingchars).TrimStart(paddingchars);
break;
default:
data = br.ReadBytes(FrameHeader.FrameSize - 1);
FrameData = Id3Read.ASCIIByteArrayToStr(data).TrimEnd(paddingchars).TrimStart(paddingchars);
break;
}
FrameOk = true;
/*
* int c = 0;
* byte[] temp_data = new byte[data.Length];
* for (int i = 0; i < data.Length; i++)
* {
* if (!(data[i] == 0 && i == 0) && !(data[i]== 0 && i == data.Length-1))
* {
* temp_data[c] = data[i];
* c++;
*
* }
* }
*
* if (c == data.Length)
* {
* FrameData = Id3Read.ByteArrayToStr(data);
* FrameOk = true;
* }
* else
* {
*
* byte[] temp2_data = new byte[c];
* for (int i = 0; i < c; i++)
* {
* temp2_data[i] = temp_data[i];
* }
*
* FrameData = Id3Read.ByteArrayToStr(temp2_data);
* FrameOk = true;
* }
* */
//}
}
catch (Exception e)
{
FrameOk = false;
}
}
}
public void read(FileStream fs)
{
try
{
if (fs.Length < 128)
{
return;
}
//Check for ID3v1 tag...
byte[] temp = new byte[30];
fs.Position = fs.Length - 128;
BinaryReader br = new BinaryReader(fs);
char[] paddingchars = { ' ', '0', '\0' };
if (Id3Read.ASCIIByteArrayToStr(br.ReadBytes(3)) == "TAG")
{
//Read Title
temp = br.ReadBytes(30);
Title = Id3Read.ASCIIByteArrayToStr(temp).TrimEnd(paddingchars);
//Read Artist
temp = br.ReadBytes(30);
Artist = Id3Read.ASCIIByteArrayToStr(temp).TrimEnd(paddingchars);
//Read Album
temp = br.ReadBytes(30);
Album = Id3Read.ASCIIByteArrayToStr(temp).TrimEnd(paddingchars);
//Read Year
temp = br.ReadBytes(4);
Year = Id3Read.ASCIIByteArrayToStr(temp).TrimEnd(paddingchars);
//Read Comment
temp = br.ReadBytes(30);
Comment = Id3Read.ASCIIByteArrayToStr(temp).TrimEnd(paddingchars);
//Read Track (Id3v1.1)
//temp = br.ReadBytes(2);
if (temp[28] == 0)
{
Track = temp[29].ToString();
}
//Read Genre
temp[0] = br.ReadByte();
if (temp[0] < 81)
{
try
{
Genre = Id3Read.GenreConv[temp[0]];
}
catch (Exception e)
{
throw (e);
}
}
}
}
catch
{
}
}
