protected internal Id3v2UniqueFileIdentifierFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//owner = null;
//identifier = null;
//ParseFields(FieldData(data));
ParseUniqueFields(FieldData(data));
}
protected internal Id3v2PrivateFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//this.owner = null;
//this.data = null;
//ParseFields(FieldData(data));
ParsePrivateFields(FieldData(data));
}
protected internal Id3v2UniqueFileIdentifierFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//owner = null;
//identifier = null;
//ParseFields(FieldData(data));
ParseUniqueFields(FieldData(data));
}
protected void ParseHeader(ByteVector data)
{
if (header != null)
header.SetData(data);
else
header = new Id3v2FrameHeader(data);
}
protected internal Id3v2PrivateFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//this.owner = null;
//this.data = null;
//ParseFields(FieldData(data));
ParsePrivateFields(FieldData(data));
}
protected internal Id3v2TextIdentificationFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//fieldList = new StringCollection();
textEncoding = StringType.UTF8;
//ParseFields(FieldData(data));
ParseTextIdentifierFields(FieldData(data));
}
protected internal Id3v2TextIdentificationFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//fieldList = new StringCollection();
textEncoding = StringType.UTF8;
//ParseFields(FieldData(data));
ParseTextIdentifierFields(FieldData(data));
}
private static void ConvertFrame(string from, string to, Id3v2FrameHeader header)
{
if (header.FrameId != from)
{
return;
}
header.FrameId = to;
}
protected internal Id3v2CommentsFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
textEncoding = StringType.UTF8;
//language = null;
//fields = null;
//type = null;
//ParseFields(FieldData(data));
ParseCommentsFields(FieldData(data));
}
protected internal Id3v2CommentsFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
textEncoding = StringType.UTF8;
//language = null;
//fields = null;
//type = null;
//ParseFields(FieldData(data));
ParseCommentsFields(FieldData(data));
}
protected void ParseHeader(ByteVector data)
{
if (header != null)
{
header.SetData(data);
}
else
{
header = new Id3v2FrameHeader(data);
}
}
protected internal Id3v2AttachedPictureFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//textEncoding = StringType.UTF8;
//mimeType = null;
//type = PictureType.None;
//fields = null;
//this.data = null;
ParseAttachedPictureFields(FieldData(data));
//this.resourceFormat = null;
}
protected internal Id3v2AttachedPictureFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//textEncoding = StringType.UTF8;
//mimeType = null;
//type = PictureType.None;
//fields = null;
//this.data = null;
ParseAttachedPictureFields(FieldData(data));
//this.resourceFormat = null;
}
protected ByteVector FieldData(ByteVector frameData)
{
if (frameData != null)
{
uint headerSize = Id3v2FrameHeader.Size(header.Version);
uint frameDataOffset = headerSize;
uint frameDataLength = Size;
if (header.Compression || header.DataLengthIndicator)
{
frameDataLength = frameData.Mid((int)headerSize, 4).ToUInt();
frameDataLength += 4;
}
// FIXME: Impliment compression and encrpytion.
/*
#if HAVE_ZLIB
* if(d->header->compression()) {
* ByteVector data(frameDataLength);
* uLongf uLongTmp = frameDataLength;
* ::uncompress((Bytef *) data.data(),
* (uLongf *) &uLongTmp,
* (Bytef *) frameData.data() + frameDataOffset,
* size());
* return data;
* }
* else
#endif
*/
return(frameData.Mid((int)frameDataOffset, (int)frameDataLength));
}
else
{
throw new ArgumentNullException("frameData");
}
}
private static bool UpdateFrame(Id3v2FrameHeader header)
{
ByteVector frameId = header.FrameId;
switch (header.Version)
{
case 2: // ID3v2.2
{
if (frameId == "CRM" ||
frameId == "EQU" ||
frameId == "LNK" ||
frameId == "RVA" ||
frameId == "TIM" ||
frameId == "TSI")
{
TagLibDebugger.Debug("ID3v2.4 no longer supports the frame type "
+ frameId.ToString() + ". It will be discarded from the tag.");
return false;
}
// ID3v2.2 only used 3 buffer for the frame ID, so we need to convert all of
// the frames to their 4 byte ID3v2.4 equivalent.
ConvertFrame("BUF", "RBUF", header);
ConvertFrame("CNT", "PCNT", header);
ConvertFrame("COM", "COMM", header);
ConvertFrame("CRA", "AENC", header);
ConvertFrame("ETC", "ETCO", header);
ConvertFrame("GEO", "GEOB", header);
ConvertFrame("IPL", "TIPL", header);
ConvertFrame("MCI", "MCDI", header);
ConvertFrame("MLL", "MLLT", header);
ConvertFrame("PIC", "APIC", header);
ConvertFrame("POP", "POPM", header);
ConvertFrame("REV", "RVRB", header);
ConvertFrame("SLT", "SYLT", header);
ConvertFrame("STC", "SYTC", header);
ConvertFrame("TAL", "TALB", header);
ConvertFrame("TBP", "TBPM", header);
ConvertFrame("TCM", "TCOM", header);
ConvertFrame("TCO", "TCON", header);
ConvertFrame("TCR", "TCOP", header);
ConvertFrame("TDA", "TDRC", header);
ConvertFrame("TDY", "TDLY", header);
ConvertFrame("TEN", "TENC", header);
ConvertFrame("TFT", "TFLT", header);
ConvertFrame("TKE", "TKEY", header);
ConvertFrame("TLA", "TLAN", header);
ConvertFrame("TLE", "TLEN", header);
ConvertFrame("TMT", "TMED", header);
ConvertFrame("TOA", "TOAL", header);
ConvertFrame("TOF", "TOFN", header);
ConvertFrame("TOL", "TOLY", header);
ConvertFrame("TOR", "TDOR", header);
ConvertFrame("TOT", "TOAL", header);
ConvertFrame("TP1", "TPE1", header);
ConvertFrame("TP2", "TPE2", header);
ConvertFrame("TP3", "TPE3", header);
ConvertFrame("TP4", "TPE4", header);
ConvertFrame("TPA", "TPOS", header);
ConvertFrame("TPB", "TPUB", header);
ConvertFrame("TRC", "TSRC", header);
ConvertFrame("TRD", "TDRC", header);
ConvertFrame("TRK", "TRCK", header);
ConvertFrame("TSS", "TSSE", header);
ConvertFrame("TT1", "TIT1", header);
ConvertFrame("TT2", "TIT2", header);
ConvertFrame("TT3", "TIT3", header);
ConvertFrame("TXT", "TOLY", header);
ConvertFrame("TXX", "TXXX", header);
ConvertFrame("TYE", "TDRC", header);
ConvertFrame("UFI", "UFID", header);
ConvertFrame("ULT", "USLT", header);
ConvertFrame("WAF", "WOAF", header);
ConvertFrame("WAR", "WOAR", header);
ConvertFrame("WAS", "WOAS", header);
ConvertFrame("WCM", "WCOM", header);
ConvertFrame("WCP", "WCOP", header);
ConvertFrame("WPB", "WPUB", header);
ConvertFrame("WXX", "WXXX", header);
}
break;
case 3: // ID3v2.3
{
if (frameId == "EQUA" ||
frameId == "RVAD" ||
frameId == "TIME" ||
frameId == "TRDA" ||
frameId == "TSIZ" ||
frameId == "TDAT")
{
TagLibDebugger.Debug("ID3v2.4 no longer supports the frame type "
+ frameId.ToString() + ". It will be discarded from the tag.");
return false;
}
ConvertFrame("TORY", "TDOR", header);
ConvertFrame("TYER", "TDRC", header);
}
break;
default:
{
// This should catch a typo that existed in TagLib up to and including
// version 1.1 where TRDC was used for the year rather than TDRC.
ConvertFrame("TRDC", "TDRC", header);
}
break;
}
return true;
}
public static Id3v2Frame CreateFrame(ByteVector data, uint version)
{
Id3v2FrameHeader header = new Id3v2FrameHeader(data, version);
ByteVector frameId = header.FrameId;
// A quick sanity check -- make sure that the frameId is 4 uppercase
// Latin1 characters. Also make sure that there is data in the frame.
if (frameId == null || frameId.Count != (version < 3 ? 3 : 4) || header.FrameSize < 0)
return null;
foreach (byte b in frameId)
{
char c = (char)b;
if ((c < 'A' || c > 'Z') && (c < '1' || c > '9'))
return null;
}
// Windows Media Player may create zero byte frames. Just send them
// off as unknown.
if (header.FrameSize == 0)
return new Id3v2UnknownFrame(data, header);
// TagLib doesn'type mess with encrypted frames, so just treat them
// as unknown frames.
if (header.Compression)
{
TagLibDebugger.Debug("Compressed frames are currently not supported.");
return new Id3v2UnknownFrame(data, header);
}
if (header.Encryption)
{
TagLibDebugger.Debug("Encrypted frames are currently not supported.");
return new Id3v2UnknownFrame(data, header);
}
if (!UpdateFrame(header))
{
header.TagAlterPreservation = true;
return new Id3v2UnknownFrame(data, header);
}
foreach (FrameCreator creator in frameCreators)
{
Id3v2Frame frame = creator(data, header);
if (frame != null)
return frame;
}
// UpdateFrame() might have updated the frame ID.
frameId = header.FrameId;
// This is where things get necissarily nasty. Here we determine which
// Frame subclass (or if none is found simply an Frame) based
// on the frame ID. Since there are a lot of possibilities, that means
// a lot of if blocks.
// Text Identification (frames 4.2)
if (frameId.StartsWith("T"))
{
Id3v2TextIdentificationFrame frame = frameId != "TXXX"
? new Id3v2TextIdentificationFrame(data, header)
: new Id3v2UserTextIdentificationFrame(data, header);
if (useDefaultEncoding)
frame.TextEncoding = defaultEncoding;
return frame;
}
// Comments (frames 4.10)
if (frameId == "COMM")
{
Id3v2CommentsFrame frame = new Id3v2CommentsFrame(data, header);
if (useDefaultEncoding)
frame.TextEncoding = defaultEncoding;
return frame;
}
// Attached Picture (frames 4.14)
if (frameId == "APIC")
{
Id3v2AttachedPictureFrame f = new Id3v2AttachedPictureFrame(data, header);
if (useDefaultEncoding)
f.TextEncoding = defaultEncoding;
return f;
}
// Relative Volume Adjustment (frames 4.11)
if (frameId == "RVA2")
return new Id3v2RelativeVolumeFrame(data, header);
// Unique File Identifier (frames 4.1)
if (frameId == "UFID")
return new Id3v2UniqueFileIdentifierFrame(data, header);
// Private (frames 4.27)
if (frameId == "PRIV")
return new Id3v2PrivateFrame(data, header);
return new Id3v2UnknownFrame(data, header);
}
private static void ConvertFrame(string from, string to, Id3v2FrameHeader header)
{
if (header.FrameId != from)
return;
header.FrameId = to;
}
protected internal Id3v2UserTextIdentificationFrame(ByteVector data, Id3v2FrameHeader header) : base(data, header)
{
}
protected internal Id3v2RelativeVolumeFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//ParseFields(FieldData(data));
ParseRelativeVolumeFields(FieldData(data));
}
protected Id3v2Frame(Id3v2FrameHeader header)
{
this.header = header;
}
protected internal Id3v2RelativeVolumeFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//ParseFields(FieldData(data));
ParseRelativeVolumeFields(FieldData(data));
}
protected internal Id3v2UnknownFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//fieldData = null;
//ParseFields(FieldData(data));
ParseUnknownFields(FieldData(data));
}
protected void Parse(ByteVector data)
{
if (data != null)
{
try
{
int frameDataPosition = 0;
int frameDataLength = data.Count;
// check for extended header
if (header.ExtendedHeader)
{
if (ExtendedHeader == null)
{
extendedHeader = new Id3v2ExtendedHeader();
}
ExtendedHeader.SetData(data);
if (ExtendedHeader.Size <= data.Count)
{
frameDataPosition += (int)ExtendedHeader.Size;
frameDataLength -= (int)ExtendedHeader.Size;
}
}
// check for footer -- we don'type actually need to parse it, as it *must*
// contain the same data as the header, but we do need to account for its
// size.
if (header.FooterPresent && Id3v2Footer.Size <= frameDataLength)
{
frameDataLength -= (int)Id3v2Footer.Size;
}
// parse frames
// Make sure that there is at least enough room in the remaining frame data for
// a frame header.
while (frameDataPosition < frameDataLength - Id3v2FrameHeader.Size(header.MajorVersion))
{
// If the next data is position is 0, assume that we've hit the padding
// portion of the frame data.
if (data[frameDataPosition] == 0)
{
if (header.FooterPresent)
{
TagLibDebugger.Debug("Padding *and* a footer found. This is not allowed by the spec.");
}
return;
}
Id3v2Frame frame = Id3v2FrameFactory.CreateFrame(data.Mid(frameDataPosition), header.MajorVersion);
if (frame == null)
{
return;
}
// Checks to make sure that frame parsed correctly.
if (frame.Size < 0)
{
return;
}
frameDataPosition += (int)(frame.Size + Id3v2FrameHeader.Size(header.MajorVersion));
// Only add frames with content so we don'type send out just we got in.
if (frame.Size > 0)
{
AddFrame(frame);
}
}
}
catch (Exception ex)
{
throw new ApplicationException("There was an error parsing this ID3 tag", ex);
}
}
else
{
throw new ArgumentNullException("data");
}
}
private static bool UpdateFrame(Id3v2FrameHeader header)
{
ByteVector frameId = header.FrameId;
switch (header.Version)
{
case 2: // ID3v2.2
{
if (frameId == "CRM" ||
frameId == "EQU" ||
frameId == "LNK" ||
frameId == "RVA" ||
frameId == "TIM" ||
frameId == "TSI")
{
TagLibDebugger.Debug("ID3v2.4 no longer supports the frame type "
+ frameId.ToString() + ". It will be discarded from the tag.");
return(false);
}
// ID3v2.2 only used 3 buffer for the frame ID, so we need to convert all of
// the frames to their 4 byte ID3v2.4 equivalent.
ConvertFrame("BUF", "RBUF", header);
ConvertFrame("CNT", "PCNT", header);
ConvertFrame("COM", "COMM", header);
ConvertFrame("CRA", "AENC", header);
ConvertFrame("ETC", "ETCO", header);
ConvertFrame("GEO", "GEOB", header);
ConvertFrame("IPL", "TIPL", header);
ConvertFrame("MCI", "MCDI", header);
ConvertFrame("MLL", "MLLT", header);
ConvertFrame("PIC", "APIC", header);
ConvertFrame("POP", "POPM", header);
ConvertFrame("REV", "RVRB", header);
ConvertFrame("SLT", "SYLT", header);
ConvertFrame("STC", "SYTC", header);
ConvertFrame("TAL", "TALB", header);
ConvertFrame("TBP", "TBPM", header);
ConvertFrame("TCM", "TCOM", header);
ConvertFrame("TCO", "TCON", header);
ConvertFrame("TCR", "TCOP", header);
ConvertFrame("TDA", "TDRC", header);
ConvertFrame("TDY", "TDLY", header);
ConvertFrame("TEN", "TENC", header);
ConvertFrame("TFT", "TFLT", header);
ConvertFrame("TKE", "TKEY", header);
ConvertFrame("TLA", "TLAN", header);
ConvertFrame("TLE", "TLEN", header);
ConvertFrame("TMT", "TMED", header);
ConvertFrame("TOA", "TOAL", header);
ConvertFrame("TOF", "TOFN", header);
ConvertFrame("TOL", "TOLY", header);
ConvertFrame("TOR", "TDOR", header);
ConvertFrame("TOT", "TOAL", header);
ConvertFrame("TP1", "TPE1", header);
ConvertFrame("TP2", "TPE2", header);
ConvertFrame("TP3", "TPE3", header);
ConvertFrame("TP4", "TPE4", header);
ConvertFrame("TPA", "TPOS", header);
ConvertFrame("TPB", "TPUB", header);
ConvertFrame("TRC", "TSRC", header);
ConvertFrame("TRD", "TDRC", header);
ConvertFrame("TRK", "TRCK", header);
ConvertFrame("TSS", "TSSE", header);
ConvertFrame("TT1", "TIT1", header);
ConvertFrame("TT2", "TIT2", header);
ConvertFrame("TT3", "TIT3", header);
ConvertFrame("TXT", "TOLY", header);
ConvertFrame("TXX", "TXXX", header);
ConvertFrame("TYE", "TDRC", header);
ConvertFrame("UFI", "UFID", header);
ConvertFrame("ULT", "USLT", header);
ConvertFrame("WAF", "WOAF", header);
ConvertFrame("WAR", "WOAR", header);
ConvertFrame("WAS", "WOAS", header);
ConvertFrame("WCM", "WCOM", header);
ConvertFrame("WCP", "WCOP", header);
ConvertFrame("WPB", "WPUB", header);
ConvertFrame("WXX", "WXXX", header);
}
break;
case 3: // ID3v2.3
{
if (frameId == "EQUA" ||
frameId == "RVAD" ||
frameId == "TIME" ||
frameId == "TRDA" ||
frameId == "TSIZ" ||
frameId == "TDAT")
{
TagLibDebugger.Debug("ID3v2.4 no longer supports the frame type "
+ frameId.ToString() + ". It will be discarded from the tag.");
return(false);
}
ConvertFrame("TORY", "TDOR", header);
ConvertFrame("TYER", "TDRC", header);
}
break;
default:
{
// This should catch a typo that existed in TagLib up to and including
// version 1.1 where TRDC was used for the year rather than TDRC.
ConvertFrame("TRDC", "TDRC", header);
}
break;
}
return(true);
}
public static Id3v2Frame CreateFrame(ByteVector data, uint version)
{
Id3v2FrameHeader header = new Id3v2FrameHeader(data, version);
ByteVector frameId = header.FrameId;
// A quick sanity check -- make sure that the frameId is 4 uppercase
// Latin1 characters. Also make sure that there is data in the frame.
if (frameId == null || frameId.Count != (version < 3 ? 3 : 4) || header.FrameSize < 0)
{
return(null);
}
foreach (byte b in frameId)
{
char c = (char)b;
if ((c < 'A' || c > 'Z') && (c < '1' || c > '9'))
{
return(null);
}
}
// Windows Media Player may create zero byte frames. Just send them
// off as unknown.
if (header.FrameSize == 0)
{
return(new Id3v2UnknownFrame(data, header));
}
// TagLib doesn'type mess with encrypted frames, so just treat them
// as unknown frames.
if (header.Compression)
{
TagLibDebugger.Debug("Compressed frames are currently not supported.");
return(new Id3v2UnknownFrame(data, header));
}
if (header.Encryption)
{
TagLibDebugger.Debug("Encrypted frames are currently not supported.");
return(new Id3v2UnknownFrame(data, header));
}
if (!UpdateFrame(header))
{
header.TagAlterPreservation = true;
return(new Id3v2UnknownFrame(data, header));
}
foreach (FrameCreator creator in frameCreators)
{
Id3v2Frame frame = creator(data, header);
if (frame != null)
{
return(frame);
}
}
// UpdateFrame() might have updated the frame ID.
frameId = header.FrameId;
// This is where things get necissarily nasty. Here we determine which
// Frame subclass (or if none is found simply an Frame) based
// on the frame ID. Since there are a lot of possibilities, that means
// a lot of if blocks.
// Text Identification (frames 4.2)
if (frameId.StartsWith("T"))
{
Id3v2TextIdentificationFrame frame = frameId != "TXXX"
? new Id3v2TextIdentificationFrame(data, header)
: new Id3v2UserTextIdentificationFrame(data, header);
if (useDefaultEncoding)
{
frame.TextEncoding = defaultEncoding;
}
return(frame);
}
// Comments (frames 4.10)
if (frameId == "COMM")
{
Id3v2CommentsFrame frame = new Id3v2CommentsFrame(data, header);
if (useDefaultEncoding)
{
frame.TextEncoding = defaultEncoding;
}
return(frame);
}
// Attached Picture (frames 4.14)
if (frameId == "APIC")
{
Id3v2AttachedPictureFrame f = new Id3v2AttachedPictureFrame(data, header);
if (useDefaultEncoding)
{
f.TextEncoding = defaultEncoding;
}
return(f);
}
// Relative Volume Adjustment (frames 4.11)
if (frameId == "RVA2")
{
return(new Id3v2RelativeVolumeFrame(data, header));
}
// Unique File Identifier (frames 4.1)
if (frameId == "UFID")
{
return(new Id3v2UniqueFileIdentifierFrame(data, header));
}
// Private (frames 4.27)
if (frameId == "PRIV")
{
return(new Id3v2PrivateFrame(data, header));
}
return(new Id3v2UnknownFrame(data, header));
}
protected Id3v2Frame(Id3v2FrameHeader header)
{
this.header = header;
}
protected internal Id3v2UnknownFrame(ByteVector data, Id3v2FrameHeader header) : base(header)
{
//fieldData = null;
//ParseFields(FieldData(data));
ParseUnknownFields(FieldData(data));
}