public void ReadFrom(TagReadingInfo tagReadingInfo, Stream stream)
{
int num1 = Utils.ReadInt32(stream);
ID3v2TagVersion version1 = tagReadingInfo.TagVersion;
if (num1 >= 0x41000000)
{
string text1 = string.Format("FrameID found when expected extended header at position {0}", stream.Position - 4);
Trace.WriteLine(text1);
stream.Seek((long)(-4), SeekOrigin.Current);
this.m_IsCRCDataPresent = false;
this.m_PaddingSize = 0;
this.m_TotalFrameCRC = 0;
}
else
{
byte num2 = Utils.ReadByte(stream);
Utils.ReadByte(stream);
this.m_IsCRCDataPresent = (num2 & 0x80) == 0x80;
this.m_PaddingSize = Utils.ReadInt32(stream);
if (this.m_IsCRCDataPresent)
{
this.m_TotalFrameCRC = Utils.ReadInt32(stream);
}
else
{
this.m_TotalFrameCRC = 0;
}
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 > 0)
{
this.UserEmail = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
if (num1 > 0)
{
this.Rating = Utils.ReadByte(stream, ref num1);
if (num1 > 0)
{
byte[] buffer1 = Utils.Read(stream, num1);
this.PlayCount = Utils.ConvertToInt64(buffer1);
}
else
{
this.PlayCount = 0;
}
}
else
{
this.Rating = 0;
this.PlayCount = 0;
}
}
else
{
this.UserEmail = null;
this.Rating = 0;
this.PlayCount = 0;
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 >= 4)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream, ref num1);
this.MimeType = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
if (num1 > 0)
{
this.FileName = Utils.ReadString(this.TextEncoding, stream, ref num1);
if (num1 > 0)
{
this.Description = Utils.ReadString(this.TextEncoding, stream, ref num1);
if (num1 > 0)
{
this.EncapsulatedObject = Utils.Read(stream, num1);
num1 = 0;
}
}
}
}
if (num1 > 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void ReadFrom(TagReadingInfo tagReadingInfo, Stream stream)
{
int num1 = Utils.ReadInt32(stream);
ID3v2TagVersion version1 = tagReadingInfo.TagVersion;
if (num1 >= 0x41000000)
{
string text1 = string.Format("FrameID found when expected extended header at position {0}", stream.Position - 4);
Trace.WriteLine(text1);
stream.Seek((long) (-4), SeekOrigin.Current);
this.m_IsCRCDataPresent = false;
this.m_PaddingSize = 0;
this.m_TotalFrameCRC = 0;
}
else
{
byte num2 = Utils.ReadByte(stream);
Utils.ReadByte(stream);
this.m_IsCRCDataPresent = (num2 & 0x80) == 0x80;
this.m_PaddingSize = Utils.ReadInt32(stream);
if (this.m_IsCRCDataPresent)
{
this.m_TotalFrameCRC = Utils.ReadInt32(stream);
}
else
{
this.m_TotalFrameCRC = 0;
}
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 >= 1)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream, ref num1);
if (num1 >= 3)
{
this.LanguageCode = Utils.ReadString(EncodingType.ISO88591, stream, 3);
num1 -= 3;
if (num1 > 0)
{
this.Value = Utils.ReadString(this.TextEncoding, stream, num1);
num1 = 0;
}
}
else
{
this.LanguageCode = "eng";
}
}
else
{
this.TextEncoding = EncodingType.ISO88591;
this.LanguageCode = "eng";
}
if (num1 > 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 != 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
throw new NotImplementedException();
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
if (this.m_FrameHeader.FrameSizeExcludingAdditions > 0)
{
this.TOC = Utils.Read(stream, this.m_FrameHeader.FrameSizeExcludingAdditions);
}
else
{
this.TOC = null;
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
long num2 = 0;
while (num1 > 0)
{
num2 = num2 << 8;
num2 += Utils.ReadByte(stream, ref num1);
}
this.Value = new Nullable<long>(num2);
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 > 0)
{
this.OwnerIdentifier = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
if (num1 > 0)
{
this.PrivateData = Utils.Read(stream, num1);
}
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
if (this.m_FrameHeader.FrameSizeExcludingAdditions >= 1)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream);
this.Value = Utils.ReadString(this.m_TextEncoding, stream, this.m_FrameHeader.FrameSizeExcludingAdditions - 1);
}
else
{
this.TextEncoding = EncodingType.ISO88591;
this.Value = "";
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
if (this.m_FrameHeader.FrameSizeExcludingAdditions > 0)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions - 1;
this.Description = Utils.ReadString(this.TextEncoding, stream, ref num1);
this.Value = Utils.ReadString(EncodingType.ISO88591, stream, num1);
}
else
{
this.Description = "";
this.Value = "";
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
int num2 = (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22) ? 3 : 4;
if (num1 > num2)
{
this.FrameIdentifier = Utils.ReadString(EncodingType.ISO88591, stream, num2);
num1 -= num2;
this.Url = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
this.AdditionalData = Utils.Read(stream, num1);
}
else
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
if (this.m_FrameHeader.FrameSizeExcludingAdditions >= 4)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream);
this.LanguageCode = Utils.ReadString(EncodingType.ISO88591, stream, 3);
int num1 = (this.m_FrameHeader.FrameSizeExcludingAdditions - 1) - 3;
this.ContentDescriptor = Utils.ReadString(this.TextEncoding, stream, ref num1);
this.Text = Utils.ReadString(this.m_TextEncoding, stream, num1);
}
else
{
string text1 = string.Format("Under-sized ({0} bytes) unsynchronized text frame at position {1}", this.m_FrameHeader.FrameSizeExcludingAdditions, stream.Position);
Trace.WriteLine(text1);
this.LanguageCode = "eng";
this.ContentDescriptor = "";
this.Text = "";
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
this.m_InvolvedPersons.Clear();
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 > 0)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream, ref num1);
while (num1 > 0)
{
string text1 = Utils.ReadString(this.TextEncoding, stream, ref num1);
string text2 = Utils.ReadString(this.TextEncoding, stream, ref num1);
if (!string.IsNullOrEmpty(text1) || !string.IsNullOrEmpty(text2))
{
IInvolvedPerson person1 = this.m_InvolvedPersons.AddNew();
person1.Involvement = text1;
person1.Name = text2;
}
}
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 > 0)
{
this.OwnerIdentifier = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
if (num1 >= 4)
{
this.PreviewStart = Utils.ReadInt16(stream, ref num1);
this.PreviewLength = Utils.ReadInt16(stream, ref num1);
if (num1 > 0)
{
this.EncryptionInfo = Utils.Read(stream, num1);
num1 = 0;
}
else
{
this.EncryptionInfo = null;
}
}
else
{
this.PreviewStart = 0;
this.PreviewLength = 0;
this.EncryptionInfo = null;
}
}
else
{
this.OwnerIdentifier = null;
this.PreviewStart = 0;
this.PreviewLength = 0;
this.EncryptionInfo = null;
}
if (num1 != 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void ReadFrom(TagReadingInfo tagReadingInfo, Stream stream)
{
//Guard.ArgumentNotNull(stream, "stream");
int size = stream.ReadInt32();
// Test for a possible FrameID (0x41 = 'A')
// Most likely the extended header bit is set but
// there is no extended header. Set the stream back
// to its original position and return.
if (size >= 0x41000000)
{
string msg = string.Format("FrameID found when expected extended header at position {0}", stream.Position - 4);
Trace.WriteLine(msg);
stream.Seek(-4, SeekOrigin.Current);
_isCRCDataPresent = false;
_paddingSize = 0;
_totalFrameCRC = 0;
return;
}
byte flags1 = stream.Read1();
byte flags2 = stream.Read1();
_isCRCDataPresent = ((flags1 & 0x80) == 0x80);
_paddingSize = stream.ReadInt32();
if (_isCRCDataPresent)
{
_totalFrameCRC = (uint)stream.ReadInt32();
}
else
{
_totalFrameCRC = 0;
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.Reset();
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 > 0)
{
this.OwnerIdentifier = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
if (num1 > 0)
{
this.MethodSymbol = Utils.ReadByte(stream, ref num1);
if (num1 > 0)
{
this.EncryptionData = Utils.Read(stream, num1);
num1 = 0;
}
}
}
if (num1 != 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_LanguageItems.Clear();
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 >= 4)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream, ref num1);
string text1 = Utils.ReadString(this.TextEncoding, stream, ref num1);
if (text1.Length != 3)
{
if ((text1.ToLower() == "english") || (text1.ToLower() == "en"))
{
this.Items.AddNew().LanguageCode = "eng";
}
else
{
foreach (KeyValuePair<string, string> pair1 in LanguageHelper.Languages)
{
if (pair1.Value.ToLower() == text1.ToLower())
{
this.Items.AddNew().LanguageCode = pair1.Key;
break;
}
}
}
}
else
{
this.Items.AddNew().LanguageCode = text1;
}
}
if (num1 > 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void ReadFrom(TagReadingInfo tagReadingInfo, Stream stream)
{
//Guard.ArgumentNotNull(stream, "stream");
int size = stream.ReadInt32();
// Test for a possible FrameID (0x41 = 'A')
// Most likely the extended header bit is set but
// there is no extended header. Set the stream back
// to its original position and return.
if (size >= 0x41000000)
{
string msg = string.Format("FrameID found when expected extended header at position {0}", stream.Position - 4);
Trace.WriteLine(msg);
stream.Seek(-4, SeekOrigin.Current);
_isCRCDataPresent = false;
_paddingSize = 0;
_totalFrameCRC = 0;
return;
}
byte flags1 = stream.Read1();
byte flags2 = stream.Read1();
_isCRCDataPresent = ((flags1 & 0x80) == 0x80);
_paddingSize = stream.ReadInt32();
if (_isCRCDataPresent)
{
_totalFrameCRC = (uint)stream.ReadInt32();
}
else
{
_totalFrameCRC = 0;
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FractionAtIndex.Clear();
throw new NotImplementedException();
}
public ID3v2ExtendedHeader(TagReadingInfo tagReadingInfo, Stream stream)
{
ReadFrom(tagReadingInfo, stream);
}
public void ReadStream(Stream stream)
{
if (Utils.ReadString(EncodingType.ISO88591, stream, 3) == "ID3")
{
int num2;
int num3;
this.m_ID3v2Header = new ID3v2Header(stream, false);
TagReadingInfo info1 = new TagReadingInfo(this.m_ID3v2Header.TagVersion);
if (this.m_ID3v2Header.UsesUnsynchronization)
{
info1.TagVersionOptions = TagVersionOptions.Unsynchronized;
}
else
{
info1.TagVersionOptions = TagVersionOptions.None;
}
if (this.m_ID3v2Header.HasExtendedHeader)
{
this.m_ID3v2ExtendedHeader = new ID3v2ExtendedHeader(info1, stream);
}
int num1 = (info1.TagVersion == ID3v2TagVersion.ID3v22) ? 3 : 4;
if (this.m_ID3v2Header.TagVersion != ID3v2TagVersion.ID3v24)
{
if (this.m_ID3v2Header.TagVersion == ID3v2TagVersion.ID3v22)
{
bool flag4 = true;
num2 = 0;
num3 = (this.m_ID3v2Header.TagSize - this.m_ID3v2ExtendedHeader.SizeIncludingSizeBytes) - num1;
long num8 = stream.Position;
Utils.Read(stream, num1);
UnknownFrame frame1 = new UnknownFrame(null, info1, stream);
num2 += frame1.FrameHeader.FrameSizeTotal;
if (num2 < num3)
{
byte[] buffer2 = Utils.Read(stream, num1);
if (((buffer2[0] < 0x30) || (buffer2[0] > 90)) && (((buffer2[1] >= 0x30) && (buffer2[1] <= 90)) && ((buffer2[2] >= 0x30) && (buffer2[2] <= 90))))
{
Trace.WriteLine("ID3v2.2 frame size off by 1 byte");
flag4 = false;
}
}
stream.Position = num8;
if (!flag4)
{
info1.TagVersionOptions |= TagVersionOptions.AddOneByteToSize;
}
}
}
else
{
bool flag1 = true;
num2 = 0;
num3 = (this.m_ID3v2Header.TagSize - this.m_ID3v2ExtendedHeader.SizeIncludingSizeBytes) - num1;
long num4 = stream.Position;
while (num2 < num3)
{
byte[] buffer1 = Utils.Read(stream, num1);
if ((((buffer1[0] < 0x30) || (buffer1[0] > 90)) || ((buffer1[1] < 0x30) || (buffer1[1] > 90))) || (((buffer1[2] < 0x30) || (buffer1[2] > 90)) || ((buffer1[3] < 0x30) || (buffer1[3] > 90))))
{
if ((buffer1[0] != 0) && (buffer1[0] != 0xff))
{
}
break;
}
int num5 = Utils.ReadInt32(stream);
if (num5 > 0xff)
{
if ((num5 & 0x80) == 0x80)
{
flag1 = false;
break;
}
if ((num5 & 0x8000) == 0x8000)
{
flag1 = false;
break;
}
if ((num5 & 0x800000) == 0x800000)
{
flag1 = false;
break;
}
if (((num2 + num5) + 10) == this.m_ID3v2Header.TagSize)
{
flag1 = false;
break;
}
stream.Seek((long)(-4), SeekOrigin.Current);
int num6 = Utils.ReadInt32SyncSafe(stream);
long num7 = stream.Position;
bool flag2 = true;
bool flag3 = true;
if (((num7 + num5) + 2) >= num3)
{
flag1 = true;
break;
}
stream.Seek((num7 + num5) + 2, SeekOrigin.Begin);
buffer1 = Utils.Read(stream, num1);
if ((((buffer1[0] < 0x30) || (buffer1[0] > 90)) || ((buffer1[1] < 0x30) || (buffer1[1] > 90))) || (((buffer1[2] < 0x30) || (buffer1[2] > 90)) || ((buffer1[3] < 0x30) || (buffer1[3] > 90))))
{
flag3 = false;
}
stream.Seek((num7 + num6) + 2, SeekOrigin.Begin);
buffer1 = Utils.Read(stream, num1);
if ((((buffer1[0] < 0x30) || (buffer1[0] > 90)) || ((buffer1[1] < 0x30) || (buffer1[1] > 90))) || (((buffer1[2] < 0x30) || (buffer1[2] > 90)) || ((buffer1[3] < 0x30) || (buffer1[3] > 90))))
{
flag2 = false;
}
if (flag3 != flag2)
{
flag1 = flag2;
}
break;
}
stream.Seek((long)(num5 + 2), SeekOrigin.Current);
num2 += num5 + 10;
}
stream.Position = num4;
if (!flag1)
{
info1.TagVersionOptions |= TagVersionOptions.UseNonSyncSafeFrameSizeID3v24;
}
}
num3 = (this.m_ID3v2Header.TagSize - this.m_ID3v2ExtendedHeader.SizeIncludingSizeBytes) - num1;
base.Read(stream, this.m_ID3v2Header.TagVersion, info1, num3, num1);
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
throw new NotImplementedException();
}
public abstract void Read(TagReadingInfo tagReadingInfo, Stream stream);
public ID3v2ExtendedHeader(TagReadingInfo tagReadingInfo, Stream stream)
{
ReadFrom(tagReadingInfo, stream);
}
public void Read(TagReadingInfo tagReadingInfo, ref Stream stream)
{
this.m_TagVersion = tagReadingInfo.TagVersion;
bool flag1 = (tagReadingInfo.TagVersionOptions & TagVersionOptions.Unsynchronized) == TagVersionOptions.Unsynchronized;
if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v23)
{
if (!flag1)
{
this.m_FrameSize = Utils.ReadInt32(stream);
}
else
{
this.m_FrameSize = Utils.ReadInt32Unsynchronized(stream);
}
this.m_FrameSizeExcludingAdditions = this.m_FrameSize;
byte num1 = Utils.ReadByte(stream);
byte num2 = Utils.ReadByte(stream);
this.IsTagAlterPreservation = (num1 & 0x80) == 0x80;
this.IsFileAlterPreservation = (num1 & 0x40) == 0x40;
this.IsReadOnly = (num1 & 0x20) == 0x20;
this.IsCompressed = (num2 & 0x80) == 0x80;
bool flag2 = (num2 & 0x40) == 0x40;
bool flag3 = (num2 & 0x20) == 0x20;
if (this.IsCompressed)
{
this.DecompressedSize = Utils.ReadInt32(stream);
this.m_FrameSizeExcludingAdditions -= 4;
}
else
{
this.DecompressedSize = 0;
}
if (flag2)
{
this.EncryptionMethod = new Nullable <byte>(Utils.ReadByte(stream));
this.m_FrameSizeExcludingAdditions--;
}
else
{
this.EncryptionMethod = new Nullable <byte>();
}
if (flag3)
{
this.GroupingIdentity = new Nullable <byte>(Utils.ReadByte(stream));
this.m_FrameSizeExcludingAdditions--;
}
else
{
this.GroupingIdentity = new Nullable <byte>();
}
if (flag1)
{
stream = Utils.ReadUnsynchronizedStream(stream, this.m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22)
{
if (!flag1)
{
this.m_FrameSize = Utils.ReadInt24(stream);
}
else
{
this.m_FrameSize = Utils.ReadInt24Unsynchronized(stream);
}
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.AddOneByteToSize) == TagVersionOptions.AddOneByteToSize)
{
this.m_FrameSize++;
}
this.m_FrameSizeExcludingAdditions = this.m_FrameSize;
this.IsTagAlterPreservation = false;
this.IsFileAlterPreservation = false;
this.IsReadOnly = false;
this.IsCompressed = false;
this.DecompressedSize = 0;
this.EncryptionMethod = new Nullable <byte>();
this.GroupingIdentity = new Nullable <byte>();
if (flag1)
{
stream = Utils.ReadUnsynchronizedStream(stream, this.m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v24)
{
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.UseNonSyncSafeFrameSizeID3v24) == TagVersionOptions.UseNonSyncSafeFrameSizeID3v24)
{
this.m_FrameSize = Utils.ReadInt32(stream);
}
else
{
this.m_FrameSize = Utils.ReadInt32SyncSafe(stream);
}
this.m_FrameSizeExcludingAdditions = this.m_FrameSize;
Utils.ReadByte(stream);
Utils.ReadByte(stream);
}
if (this.IsCompressed)
{
stream = Utils.DecompressFrame(stream, this.FrameSizeExcludingAdditions);
this.IsCompressed = false;
this.DecompressedSize = 0;
this.m_FrameSizeExcludingAdditions = (int)stream.Length;
}
}
internal void Read(Stream stream, ID3v2TagVersion tagVersion, TagReadingInfo tagReadingInfo, int readUntil, int frameIDSize)
{
Dictionary<string, IBindingList> multipleOccurrenceFrames = GetMultipleOccurrenceFrames(tagVersion);
Dictionary<string, IFrame> singleOccurrenceFrames = GetSingleOccurrenceFrames(tagVersion);
int bytesRead = 0;
while (bytesRead < readUntil)
{
byte[] frameIDBytes = stream.Read(frameIDSize);
// If character is not a letter or number, padding reached, audio began,
// or otherwise the frame is not readable
if (frameIDSize == 4)
{
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A ||
frameIDBytes[3] < 0x30 || frameIDBytes[3] > 0x5A)
{
// TODO: Try to keep reading and look for a valid frame
if (frameIDBytes[0] != 0 && frameIDBytes[0] != 0xFF)
{
string msg = string.Format("Out of range FrameID - 0x{0:X}|0x{1:X}|0x{2:X}|0x{3:X}",
frameIDBytes[0], frameIDBytes[1], frameIDBytes[2], frameIDBytes[3]);
if (ByteUtils.ISO88591GetString(frameIDBytes) != "MP3e")
{
string tmpBadFrameID = ByteUtils.ISO88591GetString(frameIDBytes).TrimEnd('\0');
Trace.WriteLine(msg + " - " + tmpBadFrameID);
}
}
break;
}
}
else if (frameIDSize == 3)
{
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A)
{
// TODO: Try to keep reading and look for a valid frame
if (frameIDBytes[0] != 0 && frameIDBytes[0] != 0xFF)
{
string msg = string.Format("Out of range FrameID - 0x{0:X}|0x{1:X}|0x{2:X}",
frameIDBytes[0], frameIDBytes[1], frameIDBytes[2]);
Trace.WriteLine(msg);
Trace.WriteLine(ByteUtils.ISO88591GetString(frameIDBytes));
}
break;
}
}
string frameID = ByteUtils.ISO88591GetString(frameIDBytes);
// TODO: Take out
//Console.WriteLine(tmpFrameID); // TODO: take out
/*
COMM Frames:
SoundJam_CDDB_TrackNumber
SoundJam_CDDB_1
iTunNORM
iTunSMPB
iTunes_CDDB_IDs
iTunes_CDDB_1
iTunes_CDDB_TrackNumber
*/
IFrame frame;
do
{
IBindingList bindingList;
if (singleOccurrenceFrames.TryGetValue(frameID, out frame))
{
frame.Read(tagReadingInfo, stream);
bytesRead += frame.FrameHeader.FrameSizeTotal;
//m_ReadFrames.Add(tmpFrame);
}
else if (multipleOccurrenceFrames.TryGetValue(frameID, out bindingList))
{
frame = (IFrame)bindingList.AddNew();
frame.Read(tagReadingInfo, stream);
//m_ReadFrames.Add(tmpFrame);
bytesRead += frame.FrameHeader.FrameSizeTotal;
}
else
{
if (tagVersion == ID3v2TagVersion.ID3v24)
{
string newFrameID;
if (_id3v24FrameAliases.TryGetValue(frameID, out newFrameID))
frameID = newFrameID;
else
break;
}
else if (tagVersion == ID3v2TagVersion.ID3v23)
{
string newFrameID;
if (_id3v23FrameAliases.TryGetValue(frameID, out newFrameID))
frameID = newFrameID;
else
break;
}
else
{
break;
}
}
} while (frame == null);
// Frame is unknown
if (frame == null)
{
if (frameID != "NCON" && // non standard (old music match)
frameID != "MJMD" && // Non standard frame (Music Match XML)
frameID != "TT22" && // 000.00 - maybe meant to be 3 letter TT2 frame, and value be 2000.00? still makes no sense
frameID != "PCST" && // null data
frameID != "TCAT" && // category (ie, comedy) (distorted view)
frameID != "TKWD" && // looks like blog tags "comedy funny weird", etc (distorted view)
frameID != "TDES" && // xml file - used by distortedview.com
frameID != "TGID" && // url (from distortedview)
frameID != "WFED" && // url (thanks distortedview)
frameID != "CM1" && // some kind of comment, seen in ID3v2.2
frameID != "TMB" && // ripped by something other, not in spec
frameID != "RTNG" &&
frameID != "XDOR" && // year
frameID != "XSOP" && // looks like artist, "Allman Brothers Band, The"
frameID != "TENK") // itunes encoder (todo: add alias?)
{
/*String msg = String.Format("Unrecognized FrameID '{0}' (not critical)", tmpFrameID);
Trace.WriteLine(msg);*/
}
UnknownFrame unknownFrame = new UnknownFrame(frameID, tagReadingInfo, stream);
_unknownFrames.Add(unknownFrame);
//m_ReadFrames.Add(tmpUNKN);
bytesRead += unknownFrame.FrameHeader.FrameSizeTotal;
}
}
// Process iTunes comments
foreach (var comment in new List<IComments>(m_CommentsList))
{
if (comment.Description != null && comment.Description.StartsWith("iTun"))
{
m_CommentsList.Remove(comment);
m_iTunesCommentsList.Add(comment);
}
}
// Process genre // TODO: may need cleanup
if (!string.IsNullOrEmpty(m_Genre.Value))
{
if (m_Genre.Value.StartsWith("("))
{
int closeIndex = m_Genre.Value.IndexOf(')');
if (closeIndex != -1)
{
if (closeIndex != m_Genre.Value.Length - 1)
{
// Take text description
m_Genre.Value = m_Genre.Value.Substring(closeIndex + 1, m_Genre.Value.Length - (closeIndex + 1));
}
else
{
// Lookup genre value
string innerValue = m_Genre.Value.Substring(1, closeIndex - 1);
int innerValueResult;
if (int.TryParse(innerValue, out innerValueResult))
{
if (GenreHelper.GenreByIndex.Length > innerValueResult && innerValueResult >= 0)
{
m_Genre.Value = GenreHelper.GenreByIndex[innerValueResult];
}
else
{
Trace.WriteLine("Unrecognized genre");
}
}
else
{
Trace.WriteLine("Unrecognized genre");
}
}
}
}
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 >= 6)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream, ref num1);
if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22)
{
Utils.ReadString(EncodingType.ISO88591, stream, 3);
num1 -= 3;
}
else
{
this.MimeType = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
}
this.PictureType = (IdSharp.Tagging.ID3v2.PictureType) Utils.ReadByte(stream, ref num1);
this.Description = Utils.ReadString(this.TextEncoding, stream, ref num1);
if (num1 > 0)
{
byte[] buffer1 = Utils.Read(stream, num1);
num1 = 0;
this.m_ReadingTag = true;
try
{
this.m_PictureCached = false;
this.PictureData = buffer1;
goto Label_00D1;
}
finally
{
this.m_ReadingTag = false;
}
}
this.PictureData = null;
}
else
{
this.TextEncoding = EncodingType.ISO88591;
this.Description = null;
this.MimeType = null;
this.PictureType = IdSharp.Tagging.ID3v2.PictureType.CoverFront;
this.PictureData = null;
}
Label_00D1:
if (num1 > 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public abstract void Read(TagReadingInfo tagReadingInfo, Stream stream);
public void Read(TagReadingInfo tagReadingInfo, ref Stream stream)
{
// TODO: Some tags have the length INCLUDE the extra ten bytes of the tag header.
// Handle this (don't corrupt MP3 on rewrite)
m_TagVersion = tagReadingInfo.TagVersion;
bool usesUnsynchronization = ((tagReadingInfo.TagVersionOptions & TagVersionOptions.Unsynchronized) == TagVersionOptions.Unsynchronized);
if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v23)
{
if (!usesUnsynchronization)
{
m_FrameSize = stream.ReadInt32();
}
else
{
m_FrameSize = ID3v2Utils.ReadInt32Unsynchronized(stream);
}
m_FrameSizeExcludingAdditions = m_FrameSize;
byte byte0 = stream.Read1();
byte byte1 = stream.Read1();
// First byte
IsTagAlterPreservation = ((byte0 & 0x80) == 0x80);
IsFileAlterPreservation = ((byte0 & 0x40) == 0x40);
IsReadOnly = ((byte0 & 0x20) == 0x20);
// Second byte
IsCompressed = ((byte1 & 0x80) == 0x80);
bool tmpIsEncrypted = ((byte1 & 0x40) == 0x40);
bool tmpIsGroupingIdentity = ((byte1 & 0x20) == 0x20);
// Additional bytes
// Compression
if (IsCompressed)
{
DecompressedSize = stream.ReadInt32();
m_FrameSizeExcludingAdditions -= 4;
}
else
{
DecompressedSize = 0;
}
// Encryption
if (tmpIsEncrypted)
{
EncryptionMethod = stream.Read1();
m_FrameSizeExcludingAdditions -= 1;
}
else
{
EncryptionMethod = null;
}
// Grouping Identity
if (tmpIsGroupingIdentity)
{
GroupingIdentity = stream.Read1();
m_FrameSizeExcludingAdditions -= 1;
}
else
{
GroupingIdentity = null;
}
if (usesUnsynchronization)
{
stream = ID3v2Utils.ReadUnsynchronizedStream(stream, m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22)
{
if (!usesUnsynchronization)
{
m_FrameSize = stream.ReadInt24();
}
else
{
m_FrameSize = ID3v2Utils.ReadInt24Unsynchronized(stream);
}
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.AddOneByteToSize) == TagVersionOptions.AddOneByteToSize)
{
m_FrameSize++;
}
m_FrameSizeExcludingAdditions = m_FrameSize;
// These fields are not supported in ID3v2.2
IsTagAlterPreservation = false;
IsFileAlterPreservation = false;
IsReadOnly = false;
IsCompressed = false;
DecompressedSize = 0;
EncryptionMethod = null;
GroupingIdentity = null;
if (usesUnsynchronization)
{
stream = ID3v2Utils.ReadUnsynchronizedStream(stream, m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v24)
{
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.UseNonSyncSafeFrameSizeID3v24) == TagVersionOptions.UseNonSyncSafeFrameSizeID3v24)
{
m_FrameSize = stream.ReadInt32();
}
else
{
m_FrameSize = ID3v2Utils.ReadInt32SyncSafe(stream);
}
m_FrameSizeExcludingAdditions = m_FrameSize;
byte byte0 = stream.Read1();
byte byte1 = stream.Read1();
bool hasDataLengthIndicator = ((byte1 & 0x01) == 0x01);
usesUnsynchronization = ((byte1 & 0x03) == 0x03);
if (hasDataLengthIndicator)
{
m_FrameSizeExcludingAdditions -= 4;
stream.Seek(4, SeekOrigin.Current); // skip data length indicator
}
if (usesUnsynchronization)
{
stream = ID3v2Utils.ReadUnsynchronizedStream(stream, m_FrameSize);
}
// TODO - finish parsing
}
if (IsCompressed)
{
stream = ID3v2Utils.DecompressFrame(stream, FrameSizeExcludingAdditions);
IsCompressed = false;
DecompressedSize = 0;
m_FrameSizeExcludingAdditions = (int)stream.Length;
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
int num1 = this.m_FrameHeader.FrameSizeExcludingAdditions;
if (num1 > 0)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream, ref num1);
if (num1 > 0)
{
this.MimeType = Utils.ReadString(EncodingType.ISO88591, stream, ref num1);
if (num1 > 1)
{
byte num2 = Utils.ReadByte(stream, ref num1);
this.m_IsMpegOrAac = (num2 & 1) == 0;
this.EquivalentText = Utils.ReadString(this.TextEncoding, stream, ref num1);
if (num1 > 0)
{
this.m_AudioData = Utils.Read(stream, num1);
num1 = 0;
}
}
else
{
this.EquivalentText = null;
this.m_AudioData = null;
}
}
else
{
this.MimeType = null;
this.EquivalentText = null;
this.m_AudioData = null;
}
}
else
{
this.TextEncoding = EncodingType.ISO88591;
this.MimeType = null;
this.EquivalentText = null;
this.m_AudioData = null;
}
if (num1 > 0)
{
stream.Seek((long) num1, SeekOrigin.Current);
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
if (this.m_FrameHeader.FrameSizeExcludingAdditions >= 1)
{
this.TextEncoding = (EncodingType) Utils.ReadByte(stream);
if (this.m_FrameHeader.FrameSizeExcludingAdditions >= 4)
{
string text1 = Utils.ReadString(EncodingType.ISO88591, stream, 3);
int num1 = (this.m_FrameHeader.FrameSizeExcludingAdditions - 1) - 3;
string text2 = Utils.ReadString(this.TextEncoding, stream, ref num1);
bool flag1 = false;
if (!LanguageHelper.Languages.ContainsKey(text1.ToLower()) && (text1.ToLower() != "xxx"))
{
if (text1.StartsWith("en"))
{
text1 = "";
}
flag1 = true;
if (num1 == 0)
{
this.Description = "";
}
else
{
this.Description = text1 + text2;
}
this.LanguageCode = "eng";
}
else
{
this.LanguageCode = text1;
this.Description = text2;
}
if (num1 > 0)
{
this.Value = Utils.ReadString(this.TextEncoding, stream, num1);
}
else if (flag1)
{
if (text1.Contains("\0"))
{
this.Value = "";
}
else
{
this.Value = text1 + text2;
}
}
else
{
this.Value = "";
}
}
else
{
string text3 = string.Format("Under-sized ({0} bytes) COMM frame at position {1}", this.m_FrameHeader.FrameSizeExcludingAdditions, stream.Position);
Trace.WriteLine(text3);
this.LanguageCode = "eng";
this.Value = "";
}
}
else
{
string text4 = string.Format("Under-sized ({0} bytes) COMM frame at position {1}", this.m_FrameHeader.FrameSizeExcludingAdditions, stream.Position);
Trace.WriteLine(text4);
this.LanguageCode = "eng";
this.Value = "";
}
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_MusicianCreditsItemBindingList.Clear();
throw new NotImplementedException();
}
public void Read(TagReadingInfo tagReadingInfo, Stream stream)
{
this.m_FrameHeader.Read(tagReadingInfo, ref stream);
this.Value = Utils.ReadString(EncodingType.ISO88591, stream, this.m_FrameHeader.FrameSizeExcludingAdditions);
}
public void Read(TagReadingInfo tagReadingInfo, ref Stream stream)
{
// TODO: Some tags have the length INCLUDE the extra ten bytes of the tag header.
// Handle this (don't corrupt MP3 on rewrite)
m_TagVersion = tagReadingInfo.TagVersion;
bool usesUnsynchronization = ((tagReadingInfo.TagVersionOptions & TagVersionOptions.Unsynchronized) == TagVersionOptions.Unsynchronized);
if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v23)
{
if (!usesUnsynchronization)
m_FrameSize = stream.ReadInt32();
else
m_FrameSize = ID3v2Utils.ReadInt32Unsynchronized(stream);
m_FrameSizeExcludingAdditions = m_FrameSize;
byte byte0 = stream.Read1();
byte byte1 = stream.Read1();
// First byte
IsTagAlterPreservation = ((byte0 & 0x80) == 0x80);
IsFileAlterPreservation = ((byte0 & 0x40) == 0x40);
IsReadOnly = ((byte0 & 0x20) == 0x20);
// Second byte
IsCompressed = ((byte1 & 0x80) == 0x80);
bool tmpIsEncrypted = ((byte1 & 0x40) == 0x40);
bool tmpIsGroupingIdentity = ((byte1 & 0x20) == 0x20);
// Additional bytes
// Compression
if (IsCompressed)
{
DecompressedSize = stream.ReadInt32();
m_FrameSizeExcludingAdditions -= 4;
}
else
{
DecompressedSize = 0;
}
// Encryption
if (tmpIsEncrypted)
{
EncryptionMethod = stream.Read1();
m_FrameSizeExcludingAdditions -= 1;
}
else
{
EncryptionMethod = null;
}
// Grouping Identity
if (tmpIsGroupingIdentity)
{
GroupingIdentity = stream.Read1();
m_FrameSizeExcludingAdditions -= 1;
}
else
{
GroupingIdentity = null;
}
if (usesUnsynchronization)
{
stream = ID3v2Utils.ReadUnsynchronizedStream(stream, m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22)
{
if (!usesUnsynchronization)
m_FrameSize = stream.ReadInt24();
else
m_FrameSize = ID3v2Utils.ReadInt24Unsynchronized(stream);
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.AddOneByteToSize) == TagVersionOptions.AddOneByteToSize)
{
m_FrameSize++;
}
m_FrameSizeExcludingAdditions = m_FrameSize;
// These fields are not supported in ID3v2.2
IsTagAlterPreservation = false;
IsFileAlterPreservation = false;
IsReadOnly = false;
IsCompressed = false;
DecompressedSize = 0;
EncryptionMethod = null;
GroupingIdentity = null;
if (usesUnsynchronization)
{
stream = ID3v2Utils.ReadUnsynchronizedStream(stream, m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v24)
{
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.UseNonSyncSafeFrameSizeID3v24) == TagVersionOptions.UseNonSyncSafeFrameSizeID3v24)
m_FrameSize = stream.ReadInt32();
else
m_FrameSize = ID3v2Utils.ReadInt32SyncSafe(stream);
m_FrameSizeExcludingAdditions = m_FrameSize;
byte byte0 = stream.Read1();
byte byte1 = stream.Read1();
bool hasDataLengthIndicator = ((byte1 & 0x01) == 0x01);
usesUnsynchronization = ((byte1 & 0x03) == 0x03);
if (hasDataLengthIndicator)
{
m_FrameSizeExcludingAdditions -= 4;
stream.Seek(4, SeekOrigin.Current); // skip data length indicator
}
if (usesUnsynchronization)
{
stream = ID3v2Utils.ReadUnsynchronizedStream(stream, m_FrameSize);
}
// TODO - finish parsing
}
if (IsCompressed)
{
stream = ID3v2Utils.DecompressFrame(stream, FrameSizeExcludingAdditions);
IsCompressed = false;
DecompressedSize = 0;
m_FrameSizeExcludingAdditions = (int)stream.Length;
}
}
/// <summary>
/// Reads the raw data from a specified stream.
/// </summary>
/// <param name="stream">The stream to read from.</param>
public void Read(Stream stream)
{
// Check for 'ID3' marker
byte[] identifier = stream.Read(3);
if (!(identifier[0] == 0x49 && identifier[1] == 0x44 && identifier[2] == 0x33))
{
return;
}
// Read the header
_id3v2Header = new ID3v2Header(stream, false);
TagReadingInfo tagReadingInfo = new TagReadingInfo(_id3v2Header.TagVersion);
if (_id3v2Header.UsesUnsynchronization)
{
tagReadingInfo.TagVersionOptions = TagVersionOptions.Unsynchronized;
}
else
{
tagReadingInfo.TagVersionOptions = TagVersionOptions.None;
}
if (_id3v2Header.HasExtendedHeader)
{
_id3v2ExtendedHeader = new ID3v2ExtendedHeader(tagReadingInfo, stream);
}
int frameIDSize = (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22 ? 3 : 4);
int bytesRead;
int readUntil;
#region <<< ID3v2.4 - Guess if syncsafe frame size was used or not >>>
if (_id3v2Header.TagVersion == ID3v2TagVersion.ID3v24)
{
bool isID3v24SyncSafe = true;
bytesRead = 0;
readUntil = _id3v2Header.TagSize - _id3v2ExtendedHeader.SizeIncludingSizeBytes - frameIDSize;
long initialPosition = stream.Position;
while (bytesRead < readUntil)
{
byte[] frameIDBytes = stream.Read(frameIDSize);
// TODO: Noticed some tags contain 0x00 'E' 'N' as a FrameID. Frame is well structured
// and other frames follow. I believe the below (keep reading+looking) will cover this issue.
// If character is not a letter or number, padding reached, audio began,
// or otherwise the frame is not readable
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A ||
frameIDBytes[3] < 0x30 || frameIDBytes[3] > 0x5A)
{
// TODO: Try to keep reading and look for a valid frame
if (frameIDBytes[0] != 0 && frameIDBytes[0] != 0xFF)
{
/*String msg = String.Format("Out of range FrameID - 0x{0:X}|0x{1:X}|0x{2:X}|0x{3:X}",
* tmpFrameIDBytes[0], tmpFrameIDBytes[1], tmpFrameIDBytes[2],
* tmpFrameIDBytes[3]);
* Trace.WriteLine(msg);*/
}
break;
}
int frameSize = stream.ReadInt32();
if (frameSize > 0xFF)
{
if ((frameSize & 0x80) == 0x80)
{
isID3v24SyncSafe = false; break;
}
if ((frameSize & 0x8000) == 0x8000)
{
isID3v24SyncSafe = false; break;
}
if ((frameSize & 0x800000) == 0x800000)
{
isID3v24SyncSafe = false; break;
}
if (bytesRead + frameSize + 10 == _id3v2Header.TagSize)
{
// Could give a false positive, but relatively unlikely (famous last words, huh?)
isID3v24SyncSafe = false;
break;
}
else
{
stream.Seek(-4, SeekOrigin.Current); // go back to read sync-safe version
int syncSafeFrameSize = ID3v2Utils.ReadInt32SyncSafe(stream);
long currentPosition = stream.Position;
bool isValidAtSyncSafe = true;
bool isValidAtNonSyncSafe = true;
// TODO - if it's the last frame and there is padding, both would indicate false
// Use the one that returns some padding bytes opposed to bytes with non-zero values (could be frame data)
// If non sync-safe reads past the end of the tag, then it's sync safe
// Testing non-sync safe since it will always be bigger than the sync safe integer
if (currentPosition + frameSize + 2 >= readUntil)
{
isID3v24SyncSafe = true; break;
}
// Test non-sync safe
stream.Seek(currentPosition + frameSize + 2, SeekOrigin.Begin);
frameIDBytes = stream.Read(frameIDSize);
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A ||
frameIDBytes[3] < 0x30 || frameIDBytes[3] > 0x5A)
{
isValidAtNonSyncSafe = false;
}
// Test sync-safe
stream.Seek(currentPosition + syncSafeFrameSize + 2, SeekOrigin.Begin);
frameIDBytes = stream.Read(frameIDSize);
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A ||
frameIDBytes[3] < 0x30 || frameIDBytes[3] > 0x5A)
{
isValidAtSyncSafe = false;
}
// if they're equal, we'll just have to go with syncsafe, since that's the spec
if (isValidAtNonSyncSafe != isValidAtSyncSafe)
{
isID3v24SyncSafe = isValidAtSyncSafe;
}
break;
}
}
stream.Seek(frameSize + 2, SeekOrigin.Current);
bytesRead += frameSize + 10;
}
stream.Position = initialPosition;
if (isID3v24SyncSafe == false)
{
tagReadingInfo.TagVersionOptions |= TagVersionOptions.UseNonSyncSafeFrameSizeID3v24;
}
}
else if (_id3v2Header.TagVersion == ID3v2TagVersion.ID3v22)
{
bool isID3v22CorrectSize = true;
bytesRead = 0;
readUntil = _id3v2Header.TagSize - _id3v2ExtendedHeader.SizeIncludingSizeBytes - frameIDSize;
long initialPosition = stream.Position;
stream.Read(frameIDSize);
UnknownFrame unknownFrame = new UnknownFrame(null, tagReadingInfo, stream);
bytesRead += unknownFrame.FrameHeader.FrameSizeTotal;
if (bytesRead < readUntil)
{
byte[] frameIDBytes = stream.Read(frameIDSize);
// TODO: Noticed some tags contain 0x00 'E' 'N' as a FrameID. Frame is well structured
// and other frames follow. I believe the below (keep reading+looking) will cover this issue.
// If character is not a letter or number, padding reached, audio began,
// or otherwise the frame is not readable
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A)
{
if (frameIDBytes[1] >= 0x30 && frameIDBytes[1] <= 0x5A &&
frameIDBytes[2] >= 0x30 && frameIDBytes[2] <= 0x5A)
{
Trace.WriteLine("ID3v2.2 frame size off by 1 byte");
isID3v22CorrectSize = false;
}
}
}
stream.Position = initialPosition;
if (isID3v22CorrectSize == false)
{
tagReadingInfo.TagVersionOptions |= TagVersionOptions.AddOneByteToSize;
}
}
#endregion <<< ID3v2.4 - Guess if syncsafe frame size was used or not >>>
readUntil = _id3v2Header.TagSize - _id3v2ExtendedHeader.SizeIncludingSizeBytes - frameIDSize;
Read(stream, _id3v2Header.TagVersion, tagReadingInfo, readUntil, frameIDSize);
}
internal void Read(Stream stream, ID3v2TagVersion tagVersion, TagReadingInfo tagReadingInfo, int readUntil, int frameIDSize)
{
Dictionary <string, IBindingList> multipleOccurrenceFrames = GetMultipleOccurrenceFrames(tagVersion);
Dictionary <string, IFrame> singleOccurrenceFrames = GetSingleOccurrenceFrames(tagVersion);
int bytesRead = 0;
while (bytesRead < readUntil)
{
byte[] frameIDBytes = stream.Read(frameIDSize);
// If character is not a letter or number, padding reached, audio began,
// or otherwise the frame is not readable
if (frameIDSize == 4)
{
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A ||
frameIDBytes[3] < 0x30 || frameIDBytes[3] > 0x5A)
{
// TODO: Try to keep reading and look for a valid frame
if (frameIDBytes[0] != 0 && frameIDBytes[0] != 0xFF)
{
string msg = string.Format("Out of range FrameID - 0x{0:X}|0x{1:X}|0x{2:X}|0x{3:X}",
frameIDBytes[0], frameIDBytes[1], frameIDBytes[2], frameIDBytes[3]);
if (ByteUtils.ISO88591GetString(frameIDBytes) != "MP3e")
{
string tmpBadFrameID = ByteUtils.ISO88591GetString(frameIDBytes).TrimEnd('\0');
Trace.WriteLine(msg + " - " + tmpBadFrameID);
}
}
break;
}
}
else if (frameIDSize == 3)
{
if (frameIDBytes[0] < 0x30 || frameIDBytes[0] > 0x5A ||
frameIDBytes[1] < 0x30 || frameIDBytes[1] > 0x5A ||
frameIDBytes[2] < 0x30 || frameIDBytes[2] > 0x5A)
{
// TODO: Try to keep reading and look for a valid frame
if (frameIDBytes[0] != 0 && frameIDBytes[0] != 0xFF)
{
string msg = string.Format("Out of range FrameID - 0x{0:X}|0x{1:X}|0x{2:X}",
frameIDBytes[0], frameIDBytes[1], frameIDBytes[2]);
Trace.WriteLine(msg);
Trace.WriteLine(ByteUtils.ISO88591GetString(frameIDBytes));
}
break;
}
}
string frameID = ByteUtils.ISO88591GetString(frameIDBytes);
// TODO: Take out
//Console.WriteLine(tmpFrameID); // TODO: take out
/*
* COMM Frames:
* SoundJam_CDDB_TrackNumber
* SoundJam_CDDB_1
* iTunNORM
* iTunSMPB
* iTunes_CDDB_IDs
* iTunes_CDDB_1
* iTunes_CDDB_TrackNumber
*/
IFrame frame;
do
{
IBindingList bindingList;
if (singleOccurrenceFrames.TryGetValue(frameID, out frame))
{
frame.Read(tagReadingInfo, stream);
bytesRead += frame.FrameHeader.FrameSizeTotal;
//m_ReadFrames.Add(tmpFrame);
}
else if (multipleOccurrenceFrames.TryGetValue(frameID, out bindingList))
{
frame = (IFrame)bindingList.AddNew();
frame.Read(tagReadingInfo, stream);
//m_ReadFrames.Add(tmpFrame);
bytesRead += frame.FrameHeader.FrameSizeTotal;
}
else
{
if (tagVersion == ID3v2TagVersion.ID3v24)
{
string newFrameID;
if (_id3v24FrameAliases.TryGetValue(frameID, out newFrameID))
{
frameID = newFrameID;
}
else
{
break;
}
}
else if (tagVersion == ID3v2TagVersion.ID3v23)
{
string newFrameID;
if (_id3v23FrameAliases.TryGetValue(frameID, out newFrameID))
{
frameID = newFrameID;
}
else
{
break;
}
}
else
{
break;
}
}
} while (frame == null);
// Frame is unknown
if (frame == null)
{
if (frameID != "NCON" && // non standard (old music match)
frameID != "MJMD" && // Non standard frame (Music Match XML)
frameID != "TT22" && // 000.00 - maybe meant to be 3 letter TT2 frame, and value be 2000.00? still makes no sense
frameID != "PCST" && // null data
frameID != "TCAT" && // category (ie, comedy) (distorted view)
frameID != "TKWD" && // looks like blog tags "comedy funny weird", etc (distorted view)
frameID != "TDES" && // xml file - used by distortedview.com
frameID != "TGID" && // url (from distortedview)
frameID != "WFED" && // url (thanks distortedview)
frameID != "CM1" && // some kind of comment, seen in ID3v2.2
frameID != "TMB" && // ripped by something other, not in spec
frameID != "RTNG" &&
frameID != "XDOR" && // year
frameID != "XSOP" && // looks like artist, "Allman Brothers Band, The"
frameID != "TENK") // itunes encoder (todo: add alias?)
{
/*String msg = String.Format("Unrecognized FrameID '{0}' (not critical)", tmpFrameID);
* Trace.WriteLine(msg);*/
}
UnknownFrame unknownFrame = new UnknownFrame(frameID, tagReadingInfo, stream);
_unknownFrames.Add(unknownFrame);
//m_ReadFrames.Add(tmpUNKN);
bytesRead += unknownFrame.FrameHeader.FrameSizeTotal;
}
}
// Process iTunes comments
for (int i = 0; i < m_CommentsList.Count;)
{
var comment = m_CommentsList[i];
if (comment.Description?.StartsWith("iTun", StringComparison.Ordinal) == true)
{
m_CommentsList.RemoveAt(i);
m_iTunesCommentsList.Add(comment);
}
else
{
i++;
}
}
// Process genre // TODO: may need cleanup
if (!string.IsNullOrEmpty(m_Genre.Value))
{
if (m_Genre.Value.StartsWith("("))
{
int closeIndex = m_Genre.Value.IndexOf(')');
if (closeIndex != -1)
{
if (closeIndex != m_Genre.Value.Length - 1)
{
// Take text description
m_Genre.Value = m_Genre.Value.Substring(closeIndex + 1, m_Genre.Value.Length - (closeIndex + 1));
}
else
{
// Lookup genre value
string innerValue = m_Genre.Value.Substring(1, closeIndex - 1);
int innerValueResult;
if (int.TryParse(innerValue, out innerValueResult))
{
if (GenreHelper.GenreByIndex.Length > innerValueResult && innerValueResult >= 0)
{
m_Genre.Value = GenreHelper.GenreByIndex[innerValueResult];
}
else
{
Trace.WriteLine("Unrecognized genre");
}
}
else
{
Trace.WriteLine("Unrecognized genre");
}
}
}
}
}
}
public void ReadStream(Stream stream)
{
if (Utils.ReadString(EncodingType.ISO88591, stream, 3) == "ID3")
{
int num2;
int num3;
this.m_ID3v2Header = new ID3v2Header(stream, false);
TagReadingInfo info1 = new TagReadingInfo(this.m_ID3v2Header.TagVersion);
if (this.m_ID3v2Header.UsesUnsynchronization)
{
info1.TagVersionOptions = TagVersionOptions.Unsynchronized;
}
else
{
info1.TagVersionOptions = TagVersionOptions.None;
}
if (this.m_ID3v2Header.HasExtendedHeader)
{
this.m_ID3v2ExtendedHeader = new ID3v2ExtendedHeader(info1, stream);
}
int num1 = (info1.TagVersion == ID3v2TagVersion.ID3v22) ? 3 : 4;
if (this.m_ID3v2Header.TagVersion != ID3v2TagVersion.ID3v24)
{
if (this.m_ID3v2Header.TagVersion == ID3v2TagVersion.ID3v22)
{
bool flag4 = true;
num2 = 0;
num3 = (this.m_ID3v2Header.TagSize - this.m_ID3v2ExtendedHeader.SizeIncludingSizeBytes) - num1;
long num8 = stream.Position;
Utils.Read(stream, num1);
UnknownFrame frame1 = new UnknownFrame(null, info1, stream);
num2 += frame1.FrameHeader.FrameSizeTotal;
if (num2 < num3)
{
byte[] buffer2 = Utils.Read(stream, num1);
if (((buffer2[0] < 0x30) || (buffer2[0] > 90)) && (((buffer2[1] >= 0x30) && (buffer2[1] <= 90)) && ((buffer2[2] >= 0x30) && (buffer2[2] <= 90))))
{
Trace.WriteLine("ID3v2.2 frame size off by 1 byte");
flag4 = false;
}
}
stream.Position = num8;
if (!flag4)
{
info1.TagVersionOptions |= TagVersionOptions.AddOneByteToSize;
}
}
}
else
{
bool flag1 = true;
num2 = 0;
num3 = (this.m_ID3v2Header.TagSize - this.m_ID3v2ExtendedHeader.SizeIncludingSizeBytes) - num1;
long num4 = stream.Position;
while (num2 < num3)
{
byte[] buffer1 = Utils.Read(stream, num1);
if ((((buffer1[0] < 0x30) || (buffer1[0] > 90)) || ((buffer1[1] < 0x30) || (buffer1[1] > 90))) || (((buffer1[2] < 0x30) || (buffer1[2] > 90)) || ((buffer1[3] < 0x30) || (buffer1[3] > 90))))
{
if ((buffer1[0] != 0) && (buffer1[0] != 0xff))
{
}
break;
}
int num5 = Utils.ReadInt32(stream);
if (num5 > 0xff)
{
if ((num5 & 0x80) == 0x80)
{
flag1 = false;
break;
}
if ((num5 & 0x8000) == 0x8000)
{
flag1 = false;
break;
}
if ((num5 & 0x800000) == 0x800000)
{
flag1 = false;
break;
}
if (((num2 + num5) + 10) == this.m_ID3v2Header.TagSize)
{
flag1 = false;
break;
}
stream.Seek((long) (-4), SeekOrigin.Current);
int num6 = Utils.ReadInt32SyncSafe(stream);
long num7 = stream.Position;
bool flag2 = true;
bool flag3 = true;
if (((num7 + num5) + 2) >= num3)
{
flag1 = true;
break;
}
stream.Seek((num7 + num5) + 2, SeekOrigin.Begin);
buffer1 = Utils.Read(stream, num1);
if ((((buffer1[0] < 0x30) || (buffer1[0] > 90)) || ((buffer1[1] < 0x30) || (buffer1[1] > 90))) || (((buffer1[2] < 0x30) || (buffer1[2] > 90)) || ((buffer1[3] < 0x30) || (buffer1[3] > 90))))
{
flag3 = false;
}
stream.Seek((num7 + num6) + 2, SeekOrigin.Begin);
buffer1 = Utils.Read(stream, num1);
if ((((buffer1[0] < 0x30) || (buffer1[0] > 90)) || ((buffer1[1] < 0x30) || (buffer1[1] > 90))) || (((buffer1[2] < 0x30) || (buffer1[2] > 90)) || ((buffer1[3] < 0x30) || (buffer1[3] > 90))))
{
flag2 = false;
}
if (flag3 != flag2)
{
flag1 = flag2;
}
break;
}
stream.Seek((long) (num5 + 2), SeekOrigin.Current);
num2 += num5 + 10;
}
stream.Position = num4;
if (!flag1)
{
info1.TagVersionOptions |= TagVersionOptions.UseNonSyncSafeFrameSizeID3v24;
}
}
num3 = (this.m_ID3v2Header.TagSize - this.m_ID3v2ExtendedHeader.SizeIncludingSizeBytes) - num1;
base.Read(stream, this.m_ID3v2Header.TagVersion, info1, num3, num1);
}
}
public void Read(TagReadingInfo tagReadingInfo, ref Stream stream)
{
this.m_TagVersion = tagReadingInfo.TagVersion;
bool flag1 = (tagReadingInfo.TagVersionOptions & TagVersionOptions.Unsynchronized) == TagVersionOptions.Unsynchronized;
if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v23)
{
if (!flag1)
{
this.m_FrameSize = Utils.ReadInt32(stream);
}
else
{
this.m_FrameSize = Utils.ReadInt32Unsynchronized(stream);
}
this.m_FrameSizeExcludingAdditions = this.m_FrameSize;
byte num1 = Utils.ReadByte(stream);
byte num2 = Utils.ReadByte(stream);
this.IsTagAlterPreservation = (num1 & 0x80) == 0x80;
this.IsFileAlterPreservation = (num1 & 0x40) == 0x40;
this.IsReadOnly = (num1 & 0x20) == 0x20;
this.IsCompressed = (num2 & 0x80) == 0x80;
bool flag2 = (num2 & 0x40) == 0x40;
bool flag3 = (num2 & 0x20) == 0x20;
if (this.IsCompressed)
{
this.DecompressedSize = Utils.ReadInt32(stream);
this.m_FrameSizeExcludingAdditions -= 4;
}
else
{
this.DecompressedSize = 0;
}
if (flag2)
{
this.EncryptionMethod = new Nullable<byte>(Utils.ReadByte(stream));
this.m_FrameSizeExcludingAdditions--;
}
else
{
this.EncryptionMethod = new Nullable<byte>();
}
if (flag3)
{
this.GroupingIdentity = new Nullable<byte>(Utils.ReadByte(stream));
this.m_FrameSizeExcludingAdditions--;
}
else
{
this.GroupingIdentity = new Nullable<byte>();
}
if (flag1)
{
stream = Utils.ReadUnsynchronizedStream(stream, this.m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v22)
{
if (!flag1)
{
this.m_FrameSize = Utils.ReadInt24(stream);
}
else
{
this.m_FrameSize = Utils.ReadInt24Unsynchronized(stream);
}
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.AddOneByteToSize) == TagVersionOptions.AddOneByteToSize)
{
this.m_FrameSize++;
}
this.m_FrameSizeExcludingAdditions = this.m_FrameSize;
this.IsTagAlterPreservation = false;
this.IsFileAlterPreservation = false;
this.IsReadOnly = false;
this.IsCompressed = false;
this.DecompressedSize = 0;
this.EncryptionMethod = new Nullable<byte>();
this.GroupingIdentity = new Nullable<byte>();
if (flag1)
{
stream = Utils.ReadUnsynchronizedStream(stream, this.m_FrameSize);
}
}
else if (tagReadingInfo.TagVersion == ID3v2TagVersion.ID3v24)
{
if ((tagReadingInfo.TagVersionOptions & TagVersionOptions.UseNonSyncSafeFrameSizeID3v24) == TagVersionOptions.UseNonSyncSafeFrameSizeID3v24)
{
this.m_FrameSize = Utils.ReadInt32(stream);
}
else
{
this.m_FrameSize = Utils.ReadInt32SyncSafe(stream);
}
this.m_FrameSizeExcludingAdditions = this.m_FrameSize;
Utils.ReadByte(stream);
Utils.ReadByte(stream);
}
if (this.IsCompressed)
{
stream = Utils.DecompressFrame(stream, this.FrameSizeExcludingAdditions);
this.IsCompressed = false;
this.DecompressedSize = 0;
this.m_FrameSizeExcludingAdditions = (int) stream.Length;
}
}
