protected override void Decode(byte[] content)
{
if (content.Length == 0)
{
throw new ID3Exception("Contentlength is zero");
}
var info = Header.GetFrameInformation();
bool url = false;
url = (info != null) && info.ID == ID3.Frames.FrameID.UserURLLinkFrame;
var encoding0 = ID3Utils.GetEncoding(content, 0, 1);
Encoding encoding1 = encoding0;
if (url)
{
encoding1 = ID3Utils.Iso88591;
}
int read;
Description = ID3Utils.ReadString(content, 1, -1, encoding0, out read);
if (content.Length < read + 1)
{
throw new ID3Exception("Frame does not contain any text");
}
base.Decode(content, read + 1, -1, encoding1, out read);
}
public Frame GetFrame(FrameHeader header, ID3Version version, Stream stream)
{
var frame = GetFrame(header.FrameID, version, header);
frame.DecodeContent(ID3Utils.Read(stream, header.FrameSize));
return(frame);
}
private void Parse2(Stream stream)
{
byte[] buffer = ID3Utils.Read(stream, 6);
FrameID = ID3Utils.ReadString(buffer, 0, 3, ID3Utils.Iso88591);
FrameSize = ID3Utils.ReadInt32(buffer, 3, false, 3);
//Flags not supported
Flags = FrameFlags.None;
}
protected override void Decode(byte[] content)
{
int read;
Encoding encoding = ID3Utils.GetEncoding(content, 0, 4);
Language = ID3Utils.ReadString(content, 1, 3, ID3Utils.Iso88591);
Description = ID3Utils.ReadString(content, 4, -1, encoding, out read);
Text = ID3Utils.ReadString(content, read + 4, -1, encoding);
}
protected void Decode(byte[] content, int offset, int count, Encoding encoding, out int read)
{
if (content.Length == 0)
{
throw new ID3Exception("Contentlength is zero");
}
Text = ID3Utils.ReadString(content, 0, content.Length - 1, encoding, out read);
}
protected override void Decode(byte[] content)
{
if (content == null || content.Length < 1)
{
return;
}
Encoding encoding = ID3Utils.GetEncoding(content, 0, 1);
int read;
Decode(content, 0, -1, encoding, out read);
}
protected override void Decode(byte[] content)
{
int offset = 0;
var encoding = ID3Utils.GetEncoding(content, 0, 4);
offset++;
ID3Utils.ReadString(content, offset, 3, ID3Utils.Iso88591);
offset += 3;
Text = ID3Utils.ReadString(content, offset, -1, encoding);
}
protected override void Decode(byte[] content)
{
int offset = 1;
if (content.Length < 3)
{
throw new ID3Exception("Invalid contentlength id=0.");//id -> for debugging
}
int read;
if (_version == ID3Version.ID3v2_2)
{
//MimeType = ID3Utils.ReadString(content, offset, 3, ID3Utils.Iso88591, out read);
MimeType = ID3Utils.ReadString(content, offset, 3, ID3Utils.Iso88591, out read);
offset += 3;
}
else
{
MimeType = ID3Utils.ReadString(content, 1, -1, ID3Utils.Iso88591, out read);
offset += read;
}
if (content.Length < offset)
{
throw new ID3Exception("Invalid contentlength id=1.");
}
if (!Enum.IsDefined(typeof(PictureFormat), content[offset]))
{
throw new ID3Exception("Invalid pictureformat: 0x{0}", content[offset].ToString("x"));
}
Format = (PictureFormat)content[offset++];
if (content.Length < offset)
{
throw new ID3Exception("Invalid contentlength id=2.");
}
var descenc = ID3Utils.GetEncoding(content, 0, 2);
Description = ID3Utils.ReadString(content, offset, -1, descenc, out read);
offset += read;
if (content.Length < offset)
{
throw new ID3Exception("Invalid contentlength id=3.");
}
RawData = new byte[content.Length - offset];
Array.Copy(content, offset, RawData, 0, RawData.Length);
}
private void Parse4(Stream stream)
{
byte[] buffer = ID3Utils.Read(stream, 10);
FrameID = ID3Utils.ReadString(buffer, 0, 4, ID3Utils.Iso88591);
FrameSize = ID3Utils.ReadInt32(buffer, 4, true, 4);
byte[] flags = new byte[] { buffer[8], buffer[9] };
//%0abc0000 Framestatusflags
if ((flags[0] & 0x40) == 0)
{
Flags |= FrameFlags.PreserveTagAltered;
}
if ((flags[0] & 0x20) == 0)
{
Flags |= FrameFlags.PreserveFileAltered;
}
if ((flags[0] & 0x10) != 0)
{
Flags |= FrameFlags.ReadOnly;
}
//%0h00kmnp Frameformatflags
if ((flags[1] & 0x40) != 0)
{
Flags |= FrameFlags.GroupIdentified;
GroupIdentifier = ID3Utils.Read(stream, 1)[0];
FrameSize -= 1;
}
if ((flags[1] & 0x8) != 0)
{
Flags |= FrameFlags.Compressed;
}
if ((flags[1] & 0x4) != 0)
{
Flags |= FrameFlags.Encrypted;
_encryptionMethod = ID3Utils.Read(stream, 1)[0];
FrameSize -= 1;
}
if ((flags[1] & 0x2) != 0)
{
Flags |= FrameFlags.UnsyncApplied; //todo: tag allgemein benachrichtigen?
}
if ((flags[1] & 0x1) != 0)
{
Flags |= FrameFlags.DataLengthIndicatorPresent;
_dataLengthIndicator = ID3Utils.ReadInt32(stream, true);
FrameSize -= 4;
}
}
protected override void Decode(byte[] content)
{
if (content.Length == 0)
{
throw new ID3Exception("Contentlength is zero");
}
int read;
OwnerIdentifier = ID3Utils.ReadString(content, 0, content.Length, ID3Utils.Iso88591, out read);
Data = new byte[content.Length - read];
if (Data.Length > 0)
{
Array.Copy(content, read, Data, 0, Data.Length);
}
}
public static void WriteToStream(Tag value, StreamAccessor accessor, out System.Action <long> SetSize)
{
long pos_size;
Stream stream = new MemoryStream();
StreamAccessor accessor2 = new StreamAccessor(stream);
StreamAccessor accessor3 = null;
long start = 0L;
if (value.has_ext)
{
value.WriteExtHeader(accessor2, out accessor3);
start = stream.Position;
}
foreach (Frame frame in value.frames.Values)
{
accessor2.WriteAs <Frame>(frame);
}
if (value.has_ext)
{
long length = stream.Position - start;
accessor3.Write(ID3Utils.CalculateCRC32(stream, start, length), EncodingType.U4BE);
accessor3.Stream.Close();
}
bool unsync = ID3Utils.ID3RequiredUnsync(stream);
if (unsync)
{
Stream stream2 = ID3Utils.ID3Unsynchronize(stream);
stream.Close();
stream = stream2;
}
value.WriteTagHeader(accessor, unsync, out pos_size);
SetSize = delegate(long size){
if (size > StreamAccessor.MaxUInt28)
{
throw new System.ArgumentOutOfRangeException("Tag の情報量が多すぎて保存できません。Tag の内容は 256MB より小さくなる様にして下さい");
}
accessor.PushPosition(pos_size);
accessor.Write((uint)size, EncodingType.UInt28BE);
accessor.PopPosition();
};
accessor.WriteStream(stream);
}
private void Parse3(Stream stream)
{
byte[] buffer = ID3Utils.Read(stream, 10);
FrameID = ID3Utils.ReadString(buffer, 0, 4, ID3Utils.Iso88591);
FrameSize = ID3Utils.ReadInt32(buffer, 4, false, 4);
byte[] flags = new byte[] { buffer[8], buffer[9] };
//%abc00000
if ((flags[0] & 0x80) == 0)
{
Flags |= FrameFlags.PreserveTagAltered;
}
if ((flags[0] & 0x40) == 0)
{
Flags |= FrameFlags.PreserveFileAltered;
}
if ((flags[0] & 0x20) != 0)
{
Flags |= FrameFlags.ReadOnly;
}
//%ijk00000
if ((flags[1] & 0x80) != 0)
{
Flags |= FrameFlags.Compressed;
_uncompressedSize = ID3Utils.ReadInt32(stream, false);
FrameSize -= 4;
}
if ((flags[1] & 0x40) != 0)
{
Flags |= FrameFlags.Encrypted;
_encryptionMethod = ID3Utils.Read(stream, 1)[0];
FrameSize -= 1;
}
if ((flags[1] & 0x20) != 0)
{
Flags |= FrameFlags.GroupIdentified;
GroupIdentifier = ID3Utils.Read(stream, 1)[0];
FrameSize -= 1;
}
}
protected override void Decode(byte[] content)
{
int offset = 1;
if (content.Length < 10)
{
throw new ID3Exception("Invalid Contentlength");
}
int read;
Price = ID3Utils.ReadString(content, offset, -1, ID3Utils.Iso88591, out read);
offset += read;
PurchaseDate = ID3Utils.ReadString(content, offset, 8, ID3Utils.Iso88591);
offset += 8;
var encoding = ID3Utils.GetEncoding(content, 0, offset);
Text = ID3Utils.ReadString(content, offset, -1, encoding);
}
protected override void Decode(byte[] content)
{
int offset = 0;
int read;
UserEmail = ID3Utils.ReadString(content, 0, -1, ID3Utils.Iso88591, out read);
offset += read;
Rating = content[offset];
offset++;
if (offset < content.Length)
{
int pos = 0;
for (int i = offset; i < content.Length; i++)
{
PlayedCounter |= ((uint)(content[i] << pos)); //cast to uint to fix warning CS0675
pos += 8;
}
}
}
protected override void Decode(byte[] content)
{
int offset = 1;
int read;
Price = ID3Utils.ReadString(content, offset, -1, ID3Utils.Iso88591, out read);
offset += read;
IsValidUntil = ID3Utils.ReadString(content, offset, -1, ID3Utils.Iso88591, out read);
offset += read;
ContactURL = ID3Utils.ReadString(content, offset, -1, ID3Utils.Iso88591, out read);
offset += read;
ReceivedType = (ReceivedType)content[offset];
offset++;
var encoding = ID3Utils.GetEncoding(content, 0, offset);
offset++;
SellerName = ID3Utils.ReadString(content, offset, -1, encoding, out read);
offset += read;
Description = ID3Utils.ReadString(content, offset, -1, encoding, out read);
offset += read;
if (offset < content.Length)
{
//we've got a attached logo
LogoMimeType = ID3Utils.ReadString(content, offset, -1, ID3Utils.Iso88591, out read);
offset += read;
var logoData = new byte[content.Length - offset];
Array.Copy(content, offset, logoData, 0, logoData.Length);
Image = ID3Utils.DecodeImage(logoData, LogoMimeType);
}
}
protected override void Decode(byte[] content)
{
Encoding e;
int index = 1;
Strings.Clear();
e = ID3Utils.GetEncoding(content, 0, 1);
//int read = 0;
//e = ID3Utils.GetEncoding2(content, 0, out read);
//index = read;
while (index < content.Length)
{
int r = 0;
Strings.Add(ID3Utils.ReadString(content, index, -1, e, out r));
index += r;
}
if (Strings.Count == 0)
{
Strings.Add(String.Empty);
}
}
private Image DecodeImage()
{
return(ID3Utils.DecodeImage(RawData, MimeType));
}
public string GetURL()
{
return(ID3Utils.GetURL(RawData, MimeType));
}
public static Tag ReadFromStream(StreamAccessor accessor, out int tagsize)
{
Tag tag = new Tag();
bool unsync;
int size;
try{
size = tag.ReadTagHeader(accessor, out unsync);
tagsize = size + 10;
}catch (System.Exception e) {
__dll__.log.WriteError(e, "TagHeader の読込に失敗しました。");
tagsize = 0;
return(null);
}
System.IO.Stream str = accessor.ReadSubStream((long)size);
StreamAccessor acc_str;
if (unsync)
{
System.IO.Stream stream = ID3Utils.ID3ResolveUnsync(str);
str.Close();
acc_str = new StreamAccessor(stream);
}
else
{
acc_str = new StreamAccessor(str);
}
if (tag.has_ext)
{
uint crc32;
int padding;
try{
tag.ReadExtHeader(acc_str, out crc32, out padding);
}catch (Exception exception2) {
exception = exception2;
__dll__.log.WriteError(exception, "ExtendedHeader の読込に失敗しました。");
return(null);
}
if (tag.hascrc)
{
long crc_start = acc_str.Stream.Position;
long crc_len = (acc_str.Stream.Length - crc_start) - padding;
if (crc_len < 0L)
{
__dll__.log.WriteError(string.Format("Extended Header-Padding Size の値が不正です。大きすぎます:{0}", padding));
return(null);
}
if (crc32 != ID3Utils.CalculateCRC32(acc_str.Stream, crc_start, crc_len))
{
__dll__.log.WriteError("ファイルの CRC32 値が一致しませんでした。");
return(null);
}
}
}
tag.frames = new afh.Collections.DictionaryP <string, Frame>();
while (true)
{
Frame val = acc_str.Read <Frame>(EncodingType.NoSpecified);
if (val == Frame.EndOfFrames)
{
acc_str.Stream.Close();
return(tag);
}
tag.frames.Add(val.FrameId, val);
}
}
