Reading ID3v2 Text Identifier Tags When They Are Encoded In Unicode
Jun 13, 2007
I have a problem reading ID3v2 text identifier tags when they are encoded in unicode. If i update the tags using winamp the tags are encoded in UTF-16 with BOM. When i try to read the tag i step through each byte and use chr(byte) to get the character that that byte represents. But when the bytes are unicode i get some characters (shown below) as the first two characters:
The remaining characters are correct, it's just these 2 first ones.
What are these for? and how can i get rid of them or read the bytes as unicode characters? i've tried reading the ID3 website and many other sites too but i don't know what to do. i can check the text-encoding byte in that tag frame to determine whether or not the tag is encoded in unicode or ISO-8859-1 but i don't know what to do next.
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May 13, 2010
I have been making a media player in vb.net. I need to get information from the Mp3 Tags. First I used ID3v1 tag reading class which I downloaded from somewhere I don't Know. Well it was working fine. it retrieved information like Album, Artist etc. but i need to get the lyrics as well. So I got news that ID3v1 tags do not have lyrics in them as a field. So I tried ID3v2 tag reading class but that too did not help. Can't find any class that can get me the lyrics.
I tried to fiddle with the classes but only ended up messing the whole thing.
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Feb 15, 2012
I am using VB2008 and I am working on a project to read id3v2 tags. It can already read id3v1 tags, but the track name and artist are for maximum 30 characters. I want making it to read id3v2 tags?
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May 5, 2010
I've been reading up on ID3 tags and was wondering had any suggestions on where exactly to start. I'm hoping to code an application to view, edit and save ID3 tags to and from mp3's. However I've found that there isn't a hell of a lot of information geared towards beginners on the internet. Am I correct in assuming that I would have to create a binary reader and read a certain amount of bytes from the beginning of the file? I'm just trying to get an idea of where to start.
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Jan 14, 2011
I already have code to read ID3v1 and v2 tags. That's not the problem. I open an IOStream, locate the ID3v2 header and pull the bytes out. Handling unicode was a bit of a sod, but I got it working.
What I don't understand is how to remove an ID3v2 tag or write one out. ID3v1 is easy - just truncate the file, then append some bytes. Simple. But ID3v2 tags don't have to be at the start of the file, do they? It's conventional, but by no means mandatory. If I just crop the entire ID3 out of the file, and close the gap, will that work? And then, to write my own tags, should I just write the bytes to the front of the file? Or do I need to update other bits of the file so the player will know where the audio data has moved to?
Also, do I need to use unsynchronisation? How can I tell if I need to?
I've looked on CodeProject; I've googled; and I've read the specification on id3.org - which, by the way, is less than clear! For example, it says that the "Extended header size" can be 6 or 10 bytes in length. So um....how am I supposed to know which one? Is there some magic way of determining how many bytes this value is being stored as?
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Jan 15, 2011
What I don't understand is how to remove an ID3v2 tag or write one out. ID3v1 is easy - just truncate the file, then append some bytes. Simple. But ID3v2 tags don't have to be at the start of the file, do they? It's conventional, but by no means mandatory. If I just crop the entire ID3 out of the file, and close the gap, will that work? And then, to write my own tags, should I just write the bytes to the front of the file? Or do I need to update other bits of the file so the player will know where the audio data has moved to?Also, do I need to use unsynchronisation? How can I tell if I need to?I've looked on CodeProject; I've googled; and I've read the specification on id3.org - which, by the way, is less than clear! For example, it says that the "Extended header size" can be 6 or 10 bytes in length. So um....how am I supposed to know which one? Is there some magic way of determining how many bytes this value is being stored as?
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Jul 7, 2009
If On Open File BOM is npt found then i have to treat the file as UTF-8. If BOM compatible with UTF-16 is Found then load it as UTF-16 If BOM is not compatible with UTF-16 then post error message."Not Compatible"
How can I implement all these conditions at once. As the criteria for all is only BOM. how can I know if BOM is found or not. Kindly let me know.
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Apr 14, 2010
Greetings, I'm looking for a way to encode a string into HTML that uses human-readable tags such as ê (=ê). At the moment, I am using the HttpUtility.HtmlEncode() function, but it appears to return numbered tags instead of human-readable ones. For example:
Dim str as string = HttpUtility;HtmlEncode("vente - en-tête")
'Expected: vente - en-tête
'Actually received: vente - en-tête
Is there a setting or function in ASP.Net to encode a string into HTML resembling the first comment?
EDIT: I am looking for this kind of functionality because the text is saved HTML-encoded in the database. The text comes from a bunch of MS Word documents that have been converted to HTML.
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Feb 9, 2010
I seem to have lost my old account on here (forgot username) so I had to make a new one.I've been able to make some working applications but I am still inexperienced and I have fallen to another problem. I am trying to read a unicode (UTF16) file and have all the contents displayed in a textbox. The file for example if opened with notepad shows all the textHere is the generic code:
Code:
If OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
Dim FILE_NAME As String = OpenFileDialog1.FileName
[code].....
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Jun 23, 2009
fI am reading some 10 fields per line from a text file. One of the field is in Chinese Characters. The other are numeric or english strings. When I open the text file (using notepad), I can see all characters displayed properly, including the Chinese. BUt when I read the line o text into a variable oneLine in a VB program using the following code:
Dim V_file As String = "N:Table_test.txt"
Dim oneLine As String
Dim scanfile As New IO.StreamReader(V_file)
[Code].....
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Nov 8, 2009
I'm trying to analyze web pages for seo. I'm trying to create my own personal tool to extract all the keywords and tags from web pages (a little clearer).I already know how to extract or parse links and text from web pages. The issue is that I tried to implement title tags, body tags or keyword tags in general via using the following code:
Dim theElementCollection As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("a")
For Each curElement As HtmlElement In theElementCollection
If curElement.GetAttribute("href").Contains("http://twitter.com/") Then
[code]....
Try to extract all the keywords from the title, body etc. for this page:[URL] and send it to separate textboxes (title keywords in textbox1, meta tags in textbox2 etc.).
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Nov 8, 2009
I'm trying to analyze web pages for seo. I'm trying to create my own personal tool to extract all the keywords and tags from web pages (a little clearer).I already know how to extract or parse links and text from web pages. The issue is that I tried to implement title tags, body tags or keyword tags in general via using the following code:[code]
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Nov 7, 2009
I was just wondering how to extract or parse any particual tags (whichever I specify) from webpages. I know how to extract text and links from webpages, but I tried to use the same method from the following code for div tags, title tags etcetera and it doesn't seem to work:
[Code]...
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Mar 30, 2010
I remember seeing a tutorial on reading XML somewhere and took no notice of it because I have my own way of doing things. In this tutorial the author outlined a basic way of reading certain XML nodes using tags
For example,
<Root>
<Person tag = 1>
<name>John</name>
[Code].....
Now in his example one would be able to navigate to John's "person" node by using the tag value. I had hoped I would never have to venture away from my warm and comfortable way of working with XML but because of an annoying datagrid and uncooperative XML format I've had to rethink things.
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Jan 11, 2010
i have an application that loads a bunch of Mp3 files and then plays them. What I want to do is use a listview to display filename, album, artist and location. Now I can get the information into the listview no problem. BUT, I don't know a simple way to read in the ID3 tags from an Mp3 file.
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Jul 13, 2010
I am making a small utility to rename my music library to the same syntax (00-Artist-Album-Title.mp3). All the files are MP3 and are correctly tagged (ID3). This is my current
VB.NET
Sub Main()
Console.WriteLine("Press any key to continue...")
[Code]...
Line 33 is where I need to get the song's ID3 tags from Song. I've done a fair amount of research but I can't find anything current or relevant.
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Mar 4, 2010
I was just trying to play around with reading websites and have the following Quote:
[Code]...
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Dec 19, 2011
I have come across some Base64 conversion functions in .net(FromBase64.string etc). What i want is, for a sample, i have a base 64 encoded string as
"48YwojCi4yaiow==".
I need to convert this string to the corresponding Hexadecimal text(The sample stands for "Thisistest" in hex text) The below link is an online converter from base64 to hexadecimal text. If you give the same base64 encoded data in the link , click on convert, the one that is seen below "Hexadecimal text" is what I need.
[URL]
Is there a standard library function in vb.net which does this? Converting a base 64 data to a hexadecimal text?
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Dec 29, 2010
i am new to visual basic and have a question with text boxes and sounds the goal is so that you put a word in a text box and then it plays that sound if it has it as a resource
[Code]...
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Jan 6, 2012
This my working method to send a email
Sub emailConfirm()
Dim email As String = txtMail.Text
Dim name As String = txtPrenom.Text + txtNom.Text[code]....
note:I want to send Link contains a unique identifier and verify the unique identifier in the login.aspx.I don't know when to do this...I found nothing interesting on the net ...
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Feb 20, 2011
Did anyone already try to read RFID tags but not by reading request?I mean, When some tag is readable can't just the RFID reader detect it?So far this is the code I've been trying to use without success.
Imports System
Imports System.IO.Ports
Public Class Form1
[code]....
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Nov 3, 2009
I am trying to convert text inputed in a text box to unicode. I need to the program to process each letter and return "the letter = the unicode" in the label.
For example, if the user enters "apple" the lable would read: a=65 p=80 p=80 l=76 e=69
I know the AscW command will return the Unicode Integer but I only know how to do the conversion for single letters
The code below only processes the first letter and only returns the code, not "the letter = the code"
Private Sub btnCode_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnCode.Click
Dim strWord As String = Me.txtWord.Text
[Code].....
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Oct 30, 2009
I make a program that want to read texts into collection class. The program need to know whether the text file is in unicode or not. What is the vb.net code to test whether a text file is in unicode or not? Is there a vb.net code that allow me to read text file without worrying whether it's unicode or not?
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Jun 23, 2010
Im using the following code to wrap html tags around text in a texbox and transfer the text to a single multiline textbox from form1 to form2.[code]My problem is that if for example textbox5 and textbox6 are empty i want the program to continue anyway.
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Nov 9, 2009
i am trying to convert several text files to unicode (UTF-16) but i could not reach to a good end. Have anyone try to do such a thing or have any idea on how to accomplish this?
[Code]...
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Apr 17, 2011
Im working on windows application (VB.Net) that deals with Unicode text (Arabic Lang.) When I INSERT the Unicode text to my SQL database it stored like this '?????????...' So, after that I can use that data any more
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Mar 5, 2009
i am making a project on VB.NET in which my text boxes have FONT property set to "TERAFONT-VARUN, 12pt " which is for GUJARATI language.Now i want to save the data of text box into my MS ACCESS data base. I also want to retrieve that data for other purpose.
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Dec 24, 2010
Can't show Unicode character in rich text box in windows form of visual basic 2010. How do I do this? Some Unicode characters are given below
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Apr 23, 2009
At me soon the roof will go, I can not solve one problem.The problem consists in the following, I accept sms through components devshock, in unicode a format.The message text comes back in an array from bytes in a following kind, we will tell: byte: (4, 18).Though if to translate unicode the text in VB.NET as follows:
Encoding.Unicode.GetBytes(<text>) the array of such kind comes back: byte (18, 4), i.e. on the contrary.And so all text.How it is possible to transform the given file to a normal, convertible kind?
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Aug 28, 2010
Is there a function in VB 2008 to check the charset of the string?
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